X-Git-Url: https://git.immae.eu/?a=blobdiff_plain;f=bip39-standalone.html;h=a559e9d154cd76b317ca3c6343686a86fc6124c6;hb=0f9081e2b51c7fd07123369016fb92ce98f72d79;hp=123556f5773e71709b7efbb5a9fdadb2ae5ede62;hpb=fcc7d121097189600a14d5f8247735cc88a9dbb2;p=perso%2FImmae%2FProjets%2FCryptomonnaies%2FBIP39.git

diff --git a/bip39-standalone.html b/bip39-standalone.html
index 123556f..a559e9d 100644
--- a/bip39-standalone.html
+++ b/bip39-standalone.html
@@ -6866,6 +6866,9 @@ button.close {
     overflow-x: scroll;
     font-family: monospace;
 }
+.visual-privacy .private-data {
+    display: none;
+}
 </style>
         <meta content="Mnemonic code for generating deterministic keys" name="description"/>
         <meta content="width=device-width, initial-scale=1.0" name="viewport" />
@@ -6877,7 +6880,7 @@ button.close {
         <div class="container">
 
             <h1 class="text-center">Mnemonic Code Converter</h1>
-            <p class="version">v0.3.3</p>
+            <p class="version">v0.3.7</p>
             <hr>
             <div class="row">
                 <div class="col-md-12">
@@ -6910,7 +6913,12 @@ button.close {
                                             <option value="21">21</option>
                                             <option value="24">24</option>
                                         </select>
-                                        <span>words</span>
+                                        <span>words</span>.
+                                        <p class="warning help-block hidden">
+                                            <span class="text-danger">
+                                                Mnemonics with less than 12 words have low entropy and may be guessed by an attacker.
+                                            </span>
+                                        </p>
                                     </div>
                                 </div>
                             </div>
@@ -6926,7 +6934,7 @@ button.close {
                             <div class="form-group">
                                 <label for="entropy" class="col-sm-2 control-label">Entropy</label>
                                 <div class="col-sm-7">
-                                    <textarea id="entropy" rows="2" class="entropy form-control" placeholder="Accepts either binary, base 6, 6-sided dice, base 10, hexadecimal or cards"></textarea>
+                                    <textarea id="entropy" rows="2" class="entropy private-data form-control" placeholder="Accepts either binary, base 6, 6-sided dice, base 10, hexadecimal or cards"></textarea>
                                     <div class="row filter-warning text-danger hidden">
                                         <p class="col-sm-12">
                                         <strong>
@@ -6953,21 +6961,28 @@ button.close {
                                         <div class="bits col-sm-3 form-control-static"></div>
                                     </div>
                                     <label class="col-sm-3 control-label">Filtered Entropy</label>
-                                    <div class="filtered col-sm-9 form-control-static"></div>
+                                    <div class="filtered private-data col-sm-9 form-control-static"></div>
                                     <label class="col-sm-3 control-label">Raw Binary</label>
-                                    <div class="binary col-sm-9 form-control-static"></div>
+                                    <div class="binary private-data col-sm-9 form-control-static"></div>
+                                    <label class="col-sm-3 control-label">Binary Checksum</label>
+                                    <div class="checksum private-data col-sm-9 form-control-static">&nbsp;</div>
                                     <label class="col-sm-3 control-label">Word Indexes</label>
-                                    <div class="word-indexes col-sm-9 form-control-static">&nbsp;</div>
+                                    <div class="word-indexes private-data col-sm-9 form-control-static">&nbsp;</div>
                                     <label class="col-sm-3 control-label">Mnemonic Length</label>
                                     <div class="col-sm-9">
                                         <select class="mnemonic-length form-control">
                                             <option value="raw" selected>Use Raw Entropy (3 words per 32 bits)</option>
                                             <option value="12">12 <span>Words</span></option>
-                                            <option value="15">15 <span>Words</option>
+                                            <option value="15">15 <span>Words</span></option>
                                             <option value="18">18 <span>Words</span></option>
                                             <option value="21">21 <span>Words</span></option>
                                             <option value="24">24 <span>Words</span></option>
                                         </select>
+                                        <p class="weak-entropy-override-warning hidden">
+                                            <span class="text-danger">
+                                                The mnemonic will appear more secure than it really is.
+                                            </span>
+                                        </p>
                                     </div>
                                 </div>
                                 <div class="col-sm-3">
@@ -6992,6 +7007,15 @@ button.close {
                                 </label>
                             </div>
                         </div>
+                        <div class="form-group">
+                            <div class="col-sm-2"></div>
+                            <div class="col-sm-10 checkbox">
+                                <label>
+                                    <input type="checkbox" class="privacy-screen-toggle">
+                                    <span>Hide all private info</span>
+                                </label>
+                            </div>
+                        </div>
                         <div class="form-group">
                             <label class="col-sm-2 control-label">Mnemonic Language</label>
                             <div class="col-sm-10 languages">
@@ -7003,25 +7027,26 @@ button.close {
                                     <a href="#chinese_traditional"  title="Chinese (Traditional)">中文(繁體)</a>
                                     <a href="#french"  title="French">Français</a>
                                     <a href="#italian"  title="Italian">Italiano</a>
+                                    <a href="#korean"  title="Korean">한국어</a>
                                 </div>
                             </div>
                         </div>
                         <div class="form-group">
                             <label for="phrase" class="col-sm-2 control-label">BIP39 Mnemonic</label>
                             <div class="col-sm-10">
-                                <textarea id="phrase" class="phrase form-control" data-show-qr></textarea>
+                                <textarea id="phrase" class="phrase private-data form-control" data-show-qr></textarea>
                             </div>
                         </div>
                         <div class="form-group">
                             <label for="passphrase" class="col-sm-2 control-label">BIP39 Passphrase (optional)</label>
                             <div class="col-sm-10">
-                                <textarea id="passphrase" class="passphrase form-control"></textarea>
+                                <textarea id="passphrase" class="passphrase private-data form-control"></textarea>
                             </div>
                         </div>
                         <div class="form-group">
                             <label for="seed" class="col-sm-2 control-label">BIP39 Seed</label>
                             <div class="col-sm-10">
-                                <textarea id="seed" class="seed form-control" readonly="readonly" data-show-qr></textarea>
+                                <textarea id="seed" class="seed private-data form-control" readonly="readonly" data-show-qr></textarea>
                             </div>
                         </div>
                         <div class="form-group">
@@ -7035,7 +7060,7 @@ button.close {
                         <div class="form-group">
                             <label for="root-key" class="col-sm-2 control-label">BIP32 Root Key</label>
                             <div class="col-sm-10">
-                                <textarea id="root-key" class="root-key form-control" data-show-qr></textarea>
+                                <textarea id="root-key" class="root-key private-data form-control" data-show-qr></textarea>
                             </div>
                         </div>
                         <div class="form-group litecoin-ltub-container hidden">
@@ -7128,7 +7153,7 @@ button.close {
                                         <span>Account Extended Private Key</span>
                                     </label>
                                     <div class="col-sm-10">
-                                        <textarea id="account-xprv" type="text" class="account-xprv form-control" readonly data-show-qr></textarea>
+                                        <textarea id="account-xprv" type="text" class="account-xprv private-data form-control" readonly data-show-qr></textarea>
                                     </div>
                                 </div>
                                 <div class="form-group">
@@ -7288,7 +7313,7 @@ button.close {
                                             <span>Account Extended Private Key</span>
                                         </label>
                                         <div class="col-sm-10">
-                                            <textarea id="account-xprv" type="text" class="account-xprv form-control" readonly data-show-qr></textarea>
+                                            <textarea id="account-xprv" type="text" class="account-xprv private-data form-control" readonly data-show-qr></textarea>
                                         </div>
                                     </div>
                                     <div class="form-group">
@@ -7355,79 +7380,89 @@ button.close {
                         <div id="bip84" class="tab-pane">
                             <form class="form-horizontal" role="form">
                                 <br>
-                                <div class="col-sm-2"></div>
-                                <div class="col-sm-10">
-                                    <p>
-                                        For more info see the
-                                        <a href="https://github.com/bitcoin/bips/blob/master/bip-0084.mediawiki" target="_blank">BIP84 spec</a>.
-                                    </p>
-                                </div>
-                                <div class="form-group">
-                                    <label for="purpose" class="col-sm-2 control-label">
-                                        Purpose
-                                    </label>
-                                    <div class="col-sm-10">
-                                        <input id="purpose" type="text" class="purpose form-control" value="84" readonly>
+                                <div class="unavailable hidden">
+                                    <div class="form-group">
+                                        <div class="col-sm-2"></div>
+                                        <div class="col-sm-10">
+                                            <p>BIP84 is unavailable for this coin.</p>
+                                        </div>
                                     </div>
                                 </div>
-                                <div class="form-group">
-                                    <label for="coin" class="col-sm-2 control-label">
-                                        Coin
-                                    </label>
+                                <div class="available">
+                                    <div class="col-sm-2"></div>
                                     <div class="col-sm-10">
-                                        <input id="coin" type="text" class="coin form-control" value="0" readonly>
+                                        <p>
+                                            For more info see the
+                                            <a href="https://github.com/bitcoin/bips/blob/master/bip-0084.mediawiki" target="_blank">BIP84 spec</a>.
+                                        </p>
                                     </div>
-                                </div>
-                                <div class="form-group">
-                                    <label for="account" class="col-sm-2 control-label">
-                                        Account
-                                    </label>
-                                    <div class="col-sm-10">
-                                        <input id="account" type="text" class="account form-control" value="0">
+                                    <div class="form-group">
+                                        <label for="purpose" class="col-sm-2 control-label">
+                                            Purpose
+                                        </label>
+                                        <div class="col-sm-10">
+                                            <input id="purpose" type="text" class="purpose form-control" value="84" readonly>
+                                        </div>
                                     </div>
-                                </div>
-                                <div class="form-group">
-                                    <label for="change" class="col-sm-2 control-label">
-                                        External / Internal
-                                    </label>
-                                    <div class="col-sm-10">
-                                        <input id="change" type="text" class="change form-control" value="0">
+                                    <div class="form-group">
+                                        <label for="coin" class="col-sm-2 control-label">
+                                            Coin
+                                        </label>
+                                        <div class="col-sm-10">
+                                            <input id="coin" type="text" class="coin form-control" value="0" readonly>
+                                        </div>
                                     </div>
-                                </div>
-                                <div class="form-group">
-                                    <label class="col-sm-2 control-label">
-                                    </label>
-                                    <div class="col-sm-10">
-                                        <p>The account extended keys can be used for importing to most BIP84 compatible wallets.</p>
+                                    <div class="form-group">
+                                        <label for="account" class="col-sm-2 control-label">
+                                            Account
+                                        </label>
+                                        <div class="col-sm-10">
+                                            <input id="account" type="text" class="account form-control" value="0">
+                                        </div>
                                     </div>
-                                </div>
-                                <div class="form-group">
-                                    <label for="account-xprv" class="col-sm-2 control-label">
-                                        <span>Account Extended Private Key</span>
-                                    </label>
-                                    <div class="col-sm-10">
-                                        <textarea id="account-xprv" type="text" class="account-xprv form-control" readonly data-show-qr></textarea>
+                                    <div class="form-group">
+                                        <label for="change" class="col-sm-2 control-label">
+                                            External / Internal
+                                        </label>
+                                        <div class="col-sm-10">
+                                            <input id="change" type="text" class="change form-control" value="0">
+                                        </div>
                                     </div>
-                                </div>
-                                <div class="form-group">
-                                    <label for="account-xpub" class="col-sm-2 control-label">
-                                        <span>Account Extended Public Key</span>
-                                    </label>
-                                    <div class="col-sm-10">
-                                        <textarea id="account-xpub" type="text" class="account-xpub form-control" readonly data-show-qr></textarea>
+                                    <div class="form-group">
+                                        <label class="col-sm-2 control-label">
+                                        </label>
+                                        <div class="col-sm-10">
+                                            <p>The account extended keys can be used for importing to most BIP84 compatible wallets.</p>
+                                        </div>
                                     </div>
-                                </div>
-                                <div class="form-group">
-                                    <label class="col-sm-2 control-label">
-                                    </label>
-                                    <div class="col-sm-10">
-                                        <p>The BIP32 derivation path and extended keys are the basis for the derived addresses.</p>
+                                    <div class="form-group">
+                                        <label for="account-xprv" class="col-sm-2 control-label">
+                                            <span>Account Extended Private Key</span>
+                                        </label>
+                                        <div class="col-sm-10">
+                                            <textarea id="account-xprv" type="text" class="account-xprv private-data form-control" readonly data-show-qr></textarea>
+                                        </div>
                                     </div>
-                                </div>
-                                <div class="form-group">
-                                    <label for="bip84-path" class="col-sm-2 control-label">BIP32 Derivation Path</label>
-                                    <div class="col-sm-10">
-                                        <input id="bip84-path" type="text" class="path form-control" value="m/84'/0'/0'/0" readonly="readonly">
+                                    <div class="form-group">
+                                        <label for="account-xpub" class="col-sm-2 control-label">
+                                            <span>Account Extended Public Key</span>
+                                        </label>
+                                        <div class="col-sm-10">
+                                            <textarea id="account-xpub" type="text" class="account-xpub form-control" readonly data-show-qr></textarea>
+                                        </div>
+                                    </div>
+                                    <div class="form-group">
+                                        <label class="col-sm-2 control-label">
+                                        </label>
+                                        <div class="col-sm-10">
+                                            <p>The BIP32 derivation path and extended keys are the basis for the derived addresses.</p>
+                                        </div>
+                                    </div>
+                                    <div class="form-group">
+                                        <label for="bip84-path" class="col-sm-2 control-label">BIP32 Derivation Path</label>
+                                        <div class="col-sm-10">
+                                            <input id="bip84-path" type="text" class="path form-control" value="m/84'/0'/0'/0" readonly="readonly">
+                                        </div>
                                     </div>
                                 </div>
                             </form>
@@ -7437,7 +7472,7 @@ button.close {
                         <div class="form-group">
                             <label for="extended-priv-key" class="col-sm-2 control-label">BIP32 Extended Private Key</label>
                             <div class="col-sm-10">
-                                <textarea id="extended-priv-key" class="extended-priv-key form-control" readonly="readonly" data-show-qr></textarea>
+                                <textarea id="extended-priv-key" class="extended-priv-key private-data form-control" readonly="readonly" data-show-qr></textarea>
                             </div>
                         </div>
                         <div class="form-group">
@@ -7457,13 +7492,25 @@ button.close {
                     <h2>Derived Addresses</h2>
                     <p>Note these addresses are derived from the BIP32 Extended Key</p>
                 </div>
-                <div class="col-md-12 use-bitpay-addresses-container hidden">
-                    <div class="checkbox">
+                <div class="col-md-12 bch-addr-type-container hidden">
+                    <div class="radio">
+                        <label>
+                            <input type="radio" value="cashaddr" name="bch-addr-type" class="use-bch-cashaddr-addresses" checked="checked">
+                            <span>Use CashAddr addresses for Bitcoin Cash (ie starting with 'q' instead of '1')</span>
+                        </label>
+                    </div>
+                    <div class="radio">
                         <label>
-                            <input type="checkbox" class="use-bitpay-addresses">
+                            <input type="radio" value="bitpay" name="bch-addr-type" class="use-bch-bitpay-addresses">
                             <span>Use BitPay-style addresses for Bitcoin Cash (ie starting with 'C' instead of '1')</span>
                         </label>
                     </div>
+                    <div class="radio">
+                        <label>
+                            <input type="radio" value="legacy" name="bch-addr-type" class="use-bch-legacy-addresses">
+                            <span>Use legacy addresses for Bitcoin Cash (ie starting with '1')</span>
+                        </label>
+                    </div>
                 </div>
                 <div class="col-md-12">
                     <div class="checkbox">
@@ -7471,8 +7518,8 @@ button.close {
                             <input type="checkbox" class="use-bip38">
                             <span>Encrypt private keys using BIP38 and this password:</span>
                         </label>
-                        <input class="bip38-password">
-                        <span>Enabling BIP38 means each key will take take several minutes to generate.</span>
+                        <input class="bip38-password private-data">
+                        <span>Enabling BIP38 means each key will take several minutes to generate.</span>
                     </div>
                 </div>
                 <ul class="addresses-type nav nav-tabs" role="tablist">
@@ -7575,6 +7622,9 @@ button.close {
                         <span>Be careful - it can be easy to make mistakes if you don't know what you're doing.</span>
                     </p>
                     <h3 id="entropy-notes">Entropy</h3>
+                    <p>
+                        <span>Entropy values should not include the BIP39 checksum. This is automatically added by the tool.</span>
+                    </p>
                     <p>
                         <span>
                             Entropy values must be sourced from a
@@ -7733,7 +7783,7 @@ button.close {
                 <td class="index"><span></span></td>
                 <td class="address"><span data-show-qr></span></td>
                 <td class="pubkey"><span data-show-qr></span></td>
-                <td class="privkey"><span data-show-qr></span></td>
+                <td class="privkey private-data"><span data-show-qr></span></td>
             </tr>
         </script>
         <script>// From
@@ -13540,7 +13590,10 @@ module.exports = require('buffer')
 
 },{"buffer":2}]},{},[4])(4)
 });</script>
-        <script>(function (root) {
+        <script>// Polyfill for NFKD normalization
+// See https://github.com/walling/unorm
+
+(function (root) {
    "use strict";
 
 /***** unorm.js *****/
@@ -33209,19 +33262,13 @@ function hasOwnProperty(obj, prop) {
 
 }).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
 },{"./support/isBuffer":32,"_process":13,"inherits":31}],34:[function(require,module,exports){
-bitcoin = {
-      base58: require('bs58'),
-      bitcoin: require('bitcoinjs-lib'),
-      ecurve: require('ecurve'),
-      BigInteger: require('bigi'),
-      Buffer: require('buffer'),
-      elliptic: require('elliptic'),
-      bs58check: require('bs58check'),
-}
+let bitcoin = require('bitcoinjs-lib');
 
-module.exports = bitcoin;
+module.exports = {
+    bitcoin
+}
 
-},{"bigi":39,"bitcoinjs-lib":52,"bs58":83,"bs58check":85,"buffer":5,"ecurve":94,"elliptic":97}],35:[function(require,module,exports){
+},{"bitcoinjs-lib":52}],35:[function(require,module,exports){
 // base-x encoding
 // Forked from https://github.com/cryptocoinjs/bs58
 // Originally written by Mike Hearn for BitcoinJ
@@ -33265,7 +33312,7 @@ module.exports = function base (ALPHABET) {
     var string = ''
 
     // deal with leading zeros
-    for (var k = 0; source[k] === 0 && k < source.length - 1; ++k) string += ALPHABET[0]
+    for (var k = 0; source[k] === 0 && k < source.length - 1; ++k) string += LEADER
     // convert digits to a string
     for (var q = digits.length - 1; q >= 0; --q) string += ALPHABET[digits[q]]
 
@@ -33273,6 +33320,7 @@ module.exports = function base (ALPHABET) {
   }
 
   function decodeUnsafe (string) {
+    if (typeof string !== 'string') throw new TypeError('Expected String')
     if (string.length === 0) return Buffer.allocUnsafe(0)
 
     var bytes = [0]
@@ -33314,21 +33362,21 @@ module.exports = function base (ALPHABET) {
   }
 }
 
-},{"safe-buffer":128}],36:[function(require,module,exports){
+},{"safe-buffer":101}],36:[function(require,module,exports){
 'use strict'
-let ALPHABET = 'qpzry9x8gf2tvdw0s3jn54khce6mua7l'
+var ALPHABET = 'qpzry9x8gf2tvdw0s3jn54khce6mua7l'
 
 // pre-compute lookup table
-let ALPHABET_MAP = {}
-for (let z = 0; z < ALPHABET.length; z++) {
-  let x = ALPHABET.charAt(z)
+var ALPHABET_MAP = {}
+for (var z = 0; z < ALPHABET.length; z++) {
+  var x = ALPHABET.charAt(z)
 
   if (ALPHABET_MAP[x] !== undefined) throw new TypeError(x + ' is ambiguous')
   ALPHABET_MAP[x] = z
 }
 
 function polymodStep (pre) {
-  let b = pre >> 25
+  var b = pre >> 25
   return ((pre & 0x1FFFFFF) << 5) ^
     (-((b >> 0) & 1) & 0x3b6a57b2) ^
     (-((b >> 1) & 1) & 0x26508e6d) ^
@@ -33338,73 +33386,76 @@ function polymodStep (pre) {
 }
 
 function prefixChk (prefix) {
-  let chk = 1
-  for (let i = 0; i < prefix.length; ++i) {
-    let c = prefix.charCodeAt(i)
+  var chk = 1
+  for (var i = 0; i < prefix.length; ++i) {
+    var c = prefix.charCodeAt(i)
     if (c < 33 || c > 126) throw new Error('Invalid prefix (' + prefix + ')')
 
     chk = polymodStep(chk) ^ (c >> 5)
   }
   chk = polymodStep(chk)
 
-  for (let i = 0; i < prefix.length; ++i) {
-    let v = prefix.charCodeAt(i)
+  for (i = 0; i < prefix.length; ++i) {
+    var v = prefix.charCodeAt(i)
     chk = polymodStep(chk) ^ (v & 0x1f)
   }
   return chk
 }
 
-function encode (prefix, words) {
-  // too long?
-  if ((prefix.length + 7 + words.length) > 90) throw new TypeError('Exceeds Bech32 maximum length')
+function encode (prefix, words, LIMIT) {
+  LIMIT = LIMIT || 90
+  if ((prefix.length + 7 + words.length) > LIMIT) throw new TypeError('Exceeds length limit')
+
   prefix = prefix.toLowerCase()
 
   // determine chk mod
-  let chk = prefixChk(prefix)
-  let result = prefix + '1'
-  for (let i = 0; i < words.length; ++i) {
-    let x = words[i]
+  var chk = prefixChk(prefix)
+  var result = prefix + '1'
+  for (var i = 0; i < words.length; ++i) {
+    var x = words[i]
     if ((x >> 5) !== 0) throw new Error('Non 5-bit word')
 
     chk = polymodStep(chk) ^ x
     result += ALPHABET.charAt(x)
   }
 
-  for (let i = 0; i < 6; ++i) {
+  for (i = 0; i < 6; ++i) {
     chk = polymodStep(chk)
   }
   chk ^= 1
 
-  for (let i = 0; i < 6; ++i) {
-    let v = (chk >> ((5 - i) * 5)) & 0x1f
+  for (i = 0; i < 6; ++i) {
+    var v = (chk >> ((5 - i) * 5)) & 0x1f
     result += ALPHABET.charAt(v)
   }
 
   return result
 }
 
-function decode (str) {
+function decode (str, LIMIT) {
+  LIMIT = LIMIT || 90
   if (str.length < 8) throw new TypeError(str + ' too short')
-  if (str.length > 90) throw new TypeError(str + ' too long')
+  if (str.length > LIMIT) throw new TypeError('Exceeds length limit')
 
   // don't allow mixed case
-  let lowered = str.toLowerCase()
-  let uppered = str.toUpperCase()
+  var lowered = str.toLowerCase()
+  var uppered = str.toUpperCase()
   if (str !== lowered && str !== uppered) throw new Error('Mixed-case string ' + str)
   str = lowered
 
-  let split = str.lastIndexOf('1')
+  var split = str.lastIndexOf('1')
+  if (split === -1) throw new Error('No separator character for ' + str)
   if (split === 0) throw new Error('Missing prefix for ' + str)
 
-  let prefix = str.slice(0, split)
-  let wordChars = str.slice(split + 1)
+  var prefix = str.slice(0, split)
+  var wordChars = str.slice(split + 1)
   if (wordChars.length < 6) throw new Error('Data too short')
 
-  let chk = prefixChk(prefix)
-  let words = []
-  for (let i = 0; i < wordChars.length; ++i) {
-    let c = wordChars.charAt(i)
-    let v = ALPHABET_MAP[c]
+  var chk = prefixChk(prefix)
+  var words = []
+  for (var i = 0; i < wordChars.length; ++i) {
+    var c = wordChars.charAt(i)
+    var v = ALPHABET_MAP[c]
     if (v === undefined) throw new Error('Unknown character ' + c)
     chk = polymodStep(chk) ^ v
 
@@ -33414,16 +33465,16 @@ function decode (str) {
   }
 
   if (chk !== 1) throw new Error('Invalid checksum for ' + str)
-  return { prefix, words }
+  return { prefix: prefix, words: words }
 }
 
 function convert (data, inBits, outBits, pad) {
-  let value = 0
-  let bits = 0
-  let maxV = (1 << outBits) - 1
+  var value = 0
+  var bits = 0
+  var maxV = (1 << outBits) - 1
 
-  let result = []
-  for (let i = 0; i < data.length; ++i) {
+  var result = []
+  for (var i = 0; i < data.length; ++i) {
     value = (value << inBits) | data[i]
     bits += inBits
 
@@ -33453,7 +33504,12 @@ function fromWords (words) {
   return convert(words, 5, 8, false)
 }
 
-module.exports = { decode, encode, toWords, fromWords }
+module.exports = {
+  decode: decode,
+  encode: encode,
+  toWords: toWords,
+  fromWords: fromWords
+}
 
 },{}],37:[function(require,module,exports){
 // (public) Constructor
@@ -35072,11 +35128,11 @@ module.exports = BigInteger
 module.exports={
   "_args": [
     [
-      "bigi",
-      "/home/ian/git/bitcoin/bitcoinjs-lib-browser"
+      "bigi@^1.4.0",
+      "/home/ian/git/bitcoin/bitcoinjs-lib-browser/node_modules/bitcoinjs-lib"
     ]
   ],
-  "_from": "bigi@latest",
+  "_from": "bigi@>=1.4.0 <2.0.0",
   "_id": "bigi@1.4.2",
   "_inCache": true,
   "_installable": true,
@@ -35094,22 +35150,21 @@ module.exports={
   "_phantomChildren": {},
   "_requested": {
     "name": "bigi",
-    "raw": "bigi",
-    "rawSpec": "",
+    "raw": "bigi@^1.4.0",
+    "rawSpec": "^1.4.0",
     "scope": null,
-    "spec": "latest",
-    "type": "tag"
+    "spec": ">=1.4.0 <2.0.0",
+    "type": "range"
   },
   "_requiredBy": [
-    "#USER",
     "/bitcoinjs-lib",
     "/ecurve"
   ],
   "_resolved": "https://registry.npmjs.org/bigi/-/bigi-1.4.2.tgz",
   "_shasum": "9c665a95f88b8b08fc05cfd731f561859d725825",
   "_shrinkwrap": null,
-  "_spec": "bigi",
-  "_where": "/home/ian/git/bitcoin/bitcoinjs-lib-browser",
+  "_spec": "bigi@^1.4.0",
+  "_where": "/home/ian/git/bitcoin/bitcoinjs-lib-browser/node_modules/bitcoinjs-lib",
   "bugs": {
     "url": "https://github.com/cryptocoinjs/bigi/issues"
   },
@@ -35310,7 +35365,7 @@ module.exports = {
   encode: encode
 }
 
-},{"safe-buffer":128}],42:[function(require,module,exports){
+},{"safe-buffer":101}],42:[function(require,module,exports){
 module.exports={
   "OP_FALSE": 0,
   "OP_0": 0,
@@ -35319,8 +35374,8 @@ module.exports={
   "OP_PUSHDATA4": 78,
   "OP_1NEGATE": 79,
   "OP_RESERVED": 80,
-  "OP_1": 81,
   "OP_TRUE": 81,
+  "OP_1": 81,
   "OP_2": 82,
   "OP_3": 83,
   "OP_4": 84,
@@ -35425,10 +35480,13 @@ module.exports={
   "OP_CHECKMULTISIGVERIFY": 175,
 
   "OP_NOP1": 176,
+  
   "OP_NOP2": 177,
   "OP_CHECKLOCKTIMEVERIFY": 177,
 
   "OP_NOP3": 178,
+  "OP_CHECKSEQUENCEVERIFY": 178,
+  
   "OP_NOP4": 179,
   "OP_NOP5": 180,
   "OP_NOP6": 181,
@@ -35488,13 +35546,24 @@ function fromBech32 (address) {
 }
 
 function toBase58Check (hash, version) {
-  typeforce(types.tuple(types.Hash160bit, types.UInt8), arguments)
+  if (version < 256){
+    typeforce(types.tuple(types.Hash160bit, types.UInt8), arguments)
 
-  var payload = Buffer.allocUnsafe(21)
-  payload.writeUInt8(version, 0)
-  hash.copy(payload, 1)
+    var payload = Buffer.allocUnsafe(21)
+    payload.writeUInt8(version, 0)
+    hash.copy(payload, 1)
 
-  return bs58check.encode(payload)
+    return bs58check.encode(payload)
+  }
+  else{
+    typeforce(types.tuple(types.Hash160bit, types.UInt16), arguments)
+
+    var payload = Buffer.allocUnsafe(22)
+    payload.writeUInt16BE(version, 0)
+    hash.copy(payload, 2)
+
+    return bs58check.encode(payload)
+  }
 }
 
 function toBech32 (data, version, prefix) {
@@ -35552,7 +35621,7 @@ module.exports = {
   toOutputScript: toOutputScript
 }
 
-},{"./networks":53,"./script":54,"./templates":56,"./types":80,"bech32":36,"bs58check":85,"safe-buffer":128,"typeforce":139}],45:[function(require,module,exports){
+},{"./networks":53,"./script":54,"./templates":56,"./types":80,"bech32":36,"bs58check":83,"safe-buffer":101,"typeforce":112}],45:[function(require,module,exports){
 var Buffer = require('safe-buffer').Buffer
 var bcrypto = require('./crypto')
 var fastMerkleRoot = require('merkle-lib/fastRoot')
@@ -35731,7 +35800,7 @@ Block.prototype.checkProofOfWork = function () {
 
 module.exports = Block
 
-},{"./crypto":47,"./transaction":78,"./types":80,"merkle-lib/fastRoot":122,"safe-buffer":128,"typeforce":139,"varuint-bitcoin":141}],46:[function(require,module,exports){
+},{"./crypto":47,"./transaction":78,"./types":80,"merkle-lib/fastRoot":97,"safe-buffer":101,"typeforce":112,"varuint-bitcoin":114}],46:[function(require,module,exports){
 var pushdata = require('pushdata-bitcoin')
 var varuint = require('varuint-bitcoin')
 
@@ -35789,7 +35858,7 @@ module.exports = {
   writeVarInt: writeVarInt
 }
 
-},{"pushdata-bitcoin":125,"varuint-bitcoin":141}],47:[function(require,module,exports){
+},{"pushdata-bitcoin":98,"varuint-bitcoin":114}],47:[function(require,module,exports){
 var createHash = require('create-hash')
 
 function ripemd160 (buffer) {
@@ -35820,7 +35889,7 @@ module.exports = {
   sha256: sha256
 }
 
-},{"create-hash":87}],48:[function(require,module,exports){
+},{"create-hash":85}],48:[function(require,module,exports){
 var Buffer = require('safe-buffer').Buffer
 var createHmac = require('create-hmac')
 var typeforce = require('typeforce')
@@ -35983,7 +36052,7 @@ module.exports = {
   __curve: secp256k1
 }
 
-},{"./ecsignature":50,"./types":80,"bigi":39,"create-hmac":90,"ecurve":94,"safe-buffer":128,"typeforce":139}],49:[function(require,module,exports){
+},{"./ecsignature":50,"./types":80,"bigi":39,"create-hmac":88,"ecurve":92,"safe-buffer":101,"typeforce":112}],49:[function(require,module,exports){
 var baddress = require('./address')
 var bcrypto = require('./crypto')
 var ecdsa = require('./ecdsa')
@@ -36116,7 +36185,7 @@ ECPair.prototype.verify = function (hash, signature) {
 
 module.exports = ECPair
 
-},{"./address":44,"./crypto":47,"./ecdsa":48,"./networks":53,"./types":80,"bigi":39,"ecurve":94,"randombytes":126,"typeforce":139,"wif":142}],50:[function(require,module,exports){
+},{"./address":44,"./crypto":47,"./ecdsa":48,"./networks":53,"./types":80,"bigi":39,"ecurve":92,"randombytes":99,"typeforce":112,"wif":115}],50:[function(require,module,exports){
 (function (Buffer){
 var bip66 = require('bip66')
 var typeforce = require('typeforce')
@@ -36217,7 +36286,7 @@ ECSignature.prototype.toScriptSignature = function (hashType) {
 module.exports = ECSignature
 
 }).call(this,require("buffer").Buffer)
-},{"./types":80,"bigi":39,"bip66":41,"buffer":5,"typeforce":139}],51:[function(require,module,exports){
+},{"./types":80,"bigi":39,"bip66":41,"buffer":5,"typeforce":112}],51:[function(require,module,exports){
 var Buffer = require('safe-buffer').Buffer
 var base58check = require('bs58check')
 var bcrypto = require('./crypto')
@@ -36535,7 +36604,7 @@ HDNode.prototype.derivePath = function (path) {
 
 module.exports = HDNode
 
-},{"./crypto":47,"./ecpair":49,"./networks":53,"./types":80,"bigi":39,"bs58check":85,"create-hmac":90,"ecurve":94,"safe-buffer":128,"typeforce":139}],52:[function(require,module,exports){
+},{"./crypto":47,"./ecpair":49,"./networks":53,"./types":80,"bigi":39,"bs58check":83,"create-hmac":88,"ecurve":92,"safe-buffer":101,"typeforce":112}],52:[function(require,module,exports){
 var script = require('./script')
 
 var templates = require('./templates')
@@ -36815,7 +36884,7 @@ module.exports = {
   isDefinedHashType: isDefinedHashType
 }
 
-},{"./script_number":55,"./types":80,"bip66":41,"bitcoin-ops":42,"bitcoin-ops/map":43,"pushdata-bitcoin":125,"safe-buffer":128,"typeforce":139}],55:[function(require,module,exports){
+},{"./script_number":55,"./types":80,"bip66":41,"bitcoin-ops":42,"bitcoin-ops/map":43,"pushdata-bitcoin":98,"safe-buffer":101,"typeforce":112}],55:[function(require,module,exports){
 var Buffer = require('safe-buffer').Buffer
 
 function decode (buffer, maxLength, minimal) {
@@ -36885,7 +36954,7 @@ module.exports = {
   encode: encode
 }
 
-},{"safe-buffer":128}],56:[function(require,module,exports){
+},{"safe-buffer":101}],56:[function(require,module,exports){
 var decompile = require('../script').decompile
 var multisig = require('./multisig')
 var nullData = require('./nulldata')
@@ -37023,6 +37092,7 @@ function encode (signatures, scriptPubKey) {
 }
 
 function decodeStack (stack, allowIncomplete) {
+  typeforce(typeforce.Array, stack)
   typeforce(check, stack, allowIncomplete)
   return stack.slice(1)
 }
@@ -37040,7 +37110,7 @@ module.exports = {
   encodeStack: encodeStack
 }
 
-},{"../../script":54,"./output":59,"bitcoin-ops":42,"safe-buffer":128,"typeforce":139}],59:[function(require,module,exports){
+},{"../../script":54,"./output":59,"bitcoin-ops":42,"safe-buffer":101,"typeforce":112}],59:[function(require,module,exports){
 // m [pubKeys ...] n OP_CHECKMULTISIG
 
 var bscript = require('../../script')
@@ -37106,7 +37176,7 @@ module.exports = {
   encode: encode
 }
 
-},{"../../script":54,"../../types":80,"bitcoin-ops":42,"typeforce":139}],60:[function(require,module,exports){
+},{"../../script":54,"../../types":80,"bitcoin-ops":42,"typeforce":112}],60:[function(require,module,exports){
 // OP_RETURN {data}
 
 var bscript = require('../script')
@@ -37142,7 +37212,7 @@ module.exports = {
   }
 }
 
-},{"../script":54,"../types":80,"bitcoin-ops":42,"typeforce":139}],61:[function(require,module,exports){
+},{"../script":54,"../types":80,"bitcoin-ops":42,"typeforce":112}],61:[function(require,module,exports){
 arguments[4][57][0].apply(exports,arguments)
 },{"./input":62,"./output":63,"dup":57}],62:[function(require,module,exports){
 // {signature}
@@ -37168,6 +37238,7 @@ function encode (signature) {
 }
 
 function decodeStack (stack) {
+  typeforce(typeforce.Array, stack)
   typeforce(check, stack)
   return stack[0]
 }
@@ -37185,7 +37256,7 @@ module.exports = {
   encodeStack: encodeStack
 }
 
-},{"../../script":54,"typeforce":139}],63:[function(require,module,exports){
+},{"../../script":54,"typeforce":112}],63:[function(require,module,exports){
 // {pubKey} OP_CHECKSIG
 
 var bscript = require('../../script')
@@ -37220,7 +37291,7 @@ module.exports = {
   encode: encode
 }
 
-},{"../../script":54,"bitcoin-ops":42,"typeforce":139}],64:[function(require,module,exports){
+},{"../../script":54,"bitcoin-ops":42,"typeforce":112}],64:[function(require,module,exports){
 arguments[4][57][0].apply(exports,arguments)
 },{"./input":65,"./output":66,"dup":57}],65:[function(require,module,exports){
 // {signature} {pubKey}
@@ -37254,6 +37325,7 @@ function encode (signature, pubKey) {
 }
 
 function decodeStack (stack) {
+  typeforce(typeforce.Array, stack)
   typeforce(check, stack)
 
   return {
@@ -37275,7 +37347,7 @@ module.exports = {
   encodeStack: encodeStack
 }
 
-},{"../../script":54,"typeforce":139}],66:[function(require,module,exports){
+},{"../../script":54,"typeforce":112}],66:[function(require,module,exports){
 // OP_DUP OP_HASH160 {pubKeyHash} OP_EQUALVERIFY OP_CHECKSIG
 
 var bscript = require('../../script')
@@ -37319,7 +37391,7 @@ module.exports = {
   encode: encode
 }
 
-},{"../../script":54,"../../types":80,"bitcoin-ops":42,"typeforce":139}],67:[function(require,module,exports){
+},{"../../script":54,"../../types":80,"bitcoin-ops":42,"typeforce":112}],67:[function(require,module,exports){
 arguments[4][57][0].apply(exports,arguments)
 },{"./input":68,"./output":69,"dup":57}],68:[function(require,module,exports){
 // <scriptSig> {serialized scriptPubKey script}
@@ -37383,6 +37455,7 @@ function encode (redeemScriptSig, redeemScript) {
 }
 
 function decodeStack (stack) {
+  typeforce(typeforce.Array, stack)
   typeforce(check, stack)
 
   return {
@@ -37407,7 +37480,7 @@ module.exports = {
   encodeStack: encodeStack
 }
 
-},{"../../script":54,"../multisig/":57,"../pubkey/":61,"../pubkeyhash/":64,"../witnesspubkeyhash/output":74,"../witnessscripthash/output":77,"safe-buffer":128,"typeforce":139}],69:[function(require,module,exports){
+},{"../../script":54,"../multisig/":57,"../pubkey/":61,"../pubkeyhash/":64,"../witnesspubkeyhash/output":74,"../witnessscripthash/output":77,"safe-buffer":101,"typeforce":112}],69:[function(require,module,exports){
 // OP_HASH160 {scriptHash} OP_EQUAL
 
 var bscript = require('../../script')
@@ -37443,7 +37516,7 @@ module.exports = {
   encode: encode
 }
 
-},{"../../script":54,"../../types":80,"bitcoin-ops":42,"typeforce":139}],70:[function(require,module,exports){
+},{"../../script":54,"../../types":80,"bitcoin-ops":42,"typeforce":112}],70:[function(require,module,exports){
 module.exports = {
   output: require('./output')
 }
@@ -37492,7 +37565,7 @@ module.exports = {
   encode: encode
 }
 
-},{"../../script":54,"../../types":80,"bitcoin-ops":42,"safe-buffer":128,"typeforce":139}],72:[function(require,module,exports){
+},{"../../script":54,"../../types":80,"bitcoin-ops":42,"safe-buffer":101,"typeforce":112}],72:[function(require,module,exports){
 arguments[4][57][0].apply(exports,arguments)
 },{"./input":73,"./output":74,"dup":57}],73:[function(require,module,exports){
 // {signature} {pubKey}
@@ -37526,6 +37599,7 @@ function encodeStack (signature, pubKey) {
 }
 
 function decodeStack (stack) {
+  typeforce(typeforce.Array, stack)
   typeforce(check, stack)
 
   return {
@@ -37540,7 +37614,7 @@ module.exports = {
   encodeStack: encodeStack
 }
 
-},{"../../script":54,"typeforce":139}],74:[function(require,module,exports){
+},{"../../script":54,"typeforce":112}],74:[function(require,module,exports){
 // OP_0 {pubKeyHash}
 
 var bscript = require('../../script')
@@ -37575,7 +37649,7 @@ module.exports = {
   encode: encode
 }
 
-},{"../../script":54,"../../types":80,"bitcoin-ops":42,"typeforce":139}],75:[function(require,module,exports){
+},{"../../script":54,"../../types":80,"bitcoin-ops":42,"typeforce":112}],75:[function(require,module,exports){
 arguments[4][57][0].apply(exports,arguments)
 },{"./input":76,"./output":77,"dup":57}],76:[function(require,module,exports){
 (function (Buffer){
@@ -37629,11 +37703,12 @@ function encodeStack (witnessData, witnessScript) {
   return [].concat(witnessData, witnessScript)
 }
 
-function decodeStack (chunks) {
-  typeforce(check, chunks)
+function decodeStack (stack) {
+  typeforce(typeforce.Array, stack)
+  typeforce(check, stack)
   return {
-    witnessData: chunks.slice(0, -1),
-    witnessScript: chunks[chunks.length - 1]
+    witnessData: stack.slice(0, -1),
+    witnessScript: stack[stack.length - 1]
   }
 }
 
@@ -37644,7 +37719,7 @@ module.exports = {
 }
 
 }).call(this,{"isBuffer":require("../../../../../../../../.nvm/versions/node/v6.0.0/lib/node_modules/browserify/node_modules/is-buffer/index.js")})
-},{"../../../../../../../../.nvm/versions/node/v6.0.0/lib/node_modules/browserify/node_modules/is-buffer/index.js":10,"../../script":54,"../../types":80,"../multisig/":57,"../pubkey/":61,"../pubkeyhash/":64,"typeforce":139}],77:[function(require,module,exports){
+},{"../../../../../../../../.nvm/versions/node/v6.0.0/lib/node_modules/browserify/node_modules/is-buffer/index.js":10,"../../script":54,"../../types":80,"../multisig/":57,"../pubkey/":61,"../pubkeyhash/":64,"typeforce":112}],77:[function(require,module,exports){
 // OP_0 {scriptHash}
 
 var bscript = require('../../script')
@@ -37679,7 +37754,7 @@ module.exports = {
   encode: encode
 }
 
-},{"../../script":54,"../../types":80,"bitcoin-ops":42,"typeforce":139}],78:[function(require,module,exports){
+},{"../../script":54,"../../types":80,"bitcoin-ops":42,"typeforce":112}],78:[function(require,module,exports){
 var Buffer = require('safe-buffer').Buffer
 var bcrypto = require('./crypto')
 var bscript = require('./script')
@@ -38173,7 +38248,7 @@ Transaction.prototype.setWitness = function (index, witness) {
 
 module.exports = Transaction
 
-},{"./bufferutils":46,"./crypto":47,"./script":54,"./types":80,"bitcoin-ops":42,"safe-buffer":128,"typeforce":139,"varuint-bitcoin":141}],79:[function(require,module,exports){
+},{"./bufferutils":46,"./crypto":47,"./script":54,"./types":80,"bitcoin-ops":42,"safe-buffer":101,"typeforce":112,"varuint-bitcoin":114}],79:[function(require,module,exports){
 var Buffer = require('safe-buffer').Buffer
 var baddress = require('./address')
 var bcrypto = require('./crypto')
@@ -38645,7 +38720,7 @@ function TransactionBuilder (network, maximumFeeRate) {
   this.network = network || networks.bitcoin
 
   // WARNING: This is __NOT__ to be relied on, its just another potential safety mechanism (safety in-depth)
-  this.maximumFeeRate = maximumFeeRate || 1000
+  this.maximumFeeRate = maximumFeeRate || 2500
 
   this.inputs = []
   this.tx = new Transaction()
@@ -38952,7 +39027,7 @@ TransactionBuilder.prototype.__overMaximumFees = function (bytes) {
 
 module.exports = TransactionBuilder
 
-},{"./address":44,"./crypto":47,"./ecpair":49,"./ecsignature":50,"./networks":53,"./script":54,"./templates":56,"./transaction":78,"./types":80,"bitcoin-ops":42,"safe-buffer":128,"typeforce":139}],80:[function(require,module,exports){
+},{"./address":44,"./crypto":47,"./ecpair":49,"./ecsignature":50,"./networks":53,"./script":54,"./templates":56,"./transaction":78,"./types":80,"bitcoin-ops":42,"safe-buffer":101,"typeforce":112}],80:[function(require,module,exports){
 var typeforce = require('typeforce')
 
 var UINT31_MAX = Math.pow(2, 31) - 1
@@ -38982,8 +39057,8 @@ var Network = typeforce.compile({
     public: typeforce.UInt32,
     private: typeforce.UInt32
   },
-  pubKeyHash: typeforce.UInt8,
-  scriptHash: typeforce.UInt8,
+  pubKeyHash: typeforce.oneOf(typeforce.UInt8, typeforce.UInt16),
+  scriptHash: typeforce.oneOf(typeforce.UInt8, typeforce.UInt16),
   wif: typeforce.UInt8
 })
 
@@ -39007,15000 +39082,7147 @@ for (var typeName in typeforce) {
 
 module.exports = types
 
-},{"typeforce":139}],81:[function(require,module,exports){
-(function (module, exports) {
-  'use strict';
+},{"typeforce":112}],81:[function(require,module,exports){
+var basex = require('base-x')
+var ALPHABET = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'
 
-  // Utils
-  function assert (val, msg) {
-    if (!val) throw new Error(msg || 'Assertion failed');
-  }
+module.exports = basex(ALPHABET)
 
-  // Could use `inherits` module, but don't want to move from single file
-  // architecture yet.
-  function inherits (ctor, superCtor) {
-    ctor.super_ = superCtor;
-    var TempCtor = function () {};
-    TempCtor.prototype = superCtor.prototype;
-    ctor.prototype = new TempCtor();
-    ctor.prototype.constructor = ctor;
-  }
+},{"base-x":35}],82:[function(require,module,exports){
+'use strict'
 
-  // BN
+var base58 = require('bs58')
+var Buffer = require('safe-buffer').Buffer
 
-  function BN (number, base, endian) {
-    if (BN.isBN(number)) {
-      return number;
-    }
+module.exports = function (checksumFn) {
+  // Encode a buffer as a base58-check encoded string
+  function encode (payload) {
+    var checksum = checksumFn(payload)
 
-    this.negative = 0;
-    this.words = null;
-    this.length = 0;
+    return base58.encode(Buffer.concat([
+      payload,
+      checksum
+    ], payload.length + 4))
+  }
 
-    // Reduction context
-    this.red = null;
+  function decodeRaw (buffer) {
+    var payload = buffer.slice(0, -4)
+    var checksum = buffer.slice(-4)
+    var newChecksum = checksumFn(payload)
 
-    if (number !== null) {
-      if (base === 'le' || base === 'be') {
-        endian = base;
-        base = 10;
-      }
+    if (checksum[0] ^ newChecksum[0] |
+        checksum[1] ^ newChecksum[1] |
+        checksum[2] ^ newChecksum[2] |
+        checksum[3] ^ newChecksum[3]) return
 
-      this._init(number || 0, base || 10, endian || 'be');
-    }
+    return payload
   }
-  if (typeof module === 'object') {
-    module.exports = BN;
-  } else {
-    exports.BN = BN;
+
+  // Decode a base58-check encoded string to a buffer, no result if checksum is wrong
+  function decodeUnsafe (string) {
+    var buffer = base58.decodeUnsafe(string)
+    if (!buffer) return
+
+    return decodeRaw(buffer)
   }
 
-  BN.BN = BN;
-  BN.wordSize = 26;
+  function decode (string) {
+    var buffer = base58.decode(string)
+    var payload = decodeRaw(buffer, checksumFn)
+    if (!payload) throw new Error('Invalid checksum')
+    return payload
+  }
 
-  var Buffer;
-  try {
-    Buffer = require('buf' + 'fer').Buffer;
-  } catch (e) {
+  return {
+    encode: encode,
+    decode: decode,
+    decodeUnsafe: decodeUnsafe
   }
+}
 
-  BN.isBN = function isBN (num) {
-    if (num instanceof BN) {
-      return true;
-    }
+},{"bs58":81,"safe-buffer":101}],83:[function(require,module,exports){
+'use strict'
 
-    return num !== null && typeof num === 'object' &&
-      num.constructor.wordSize === BN.wordSize && Array.isArray(num.words);
-  };
+var createHash = require('create-hash')
+var bs58checkBase = require('./base')
 
-  BN.max = function max (left, right) {
-    if (left.cmp(right) > 0) return left;
-    return right;
-  };
+// SHA256(SHA256(buffer))
+function sha256x2 (buffer) {
+  var tmp = createHash('sha256').update(buffer).digest()
+  return createHash('sha256').update(tmp).digest()
+}
 
-  BN.min = function min (left, right) {
-    if (left.cmp(right) < 0) return left;
-    return right;
-  };
+module.exports = bs58checkBase(sha256x2)
 
-  BN.prototype._init = function init (number, base, endian) {
-    if (typeof number === 'number') {
-      return this._initNumber(number, base, endian);
-    }
+},{"./base":82,"create-hash":85}],84:[function(require,module,exports){
+var Buffer = require('safe-buffer').Buffer
+var Transform = require('stream').Transform
+var StringDecoder = require('string_decoder').StringDecoder
+var inherits = require('inherits')
 
-    if (typeof number === 'object') {
-      return this._initArray(number, base, endian);
-    }
+function CipherBase (hashMode) {
+  Transform.call(this)
+  this.hashMode = typeof hashMode === 'string'
+  if (this.hashMode) {
+    this[hashMode] = this._finalOrDigest
+  } else {
+    this.final = this._finalOrDigest
+  }
+  if (this._final) {
+    this.__final = this._final
+    this._final = null
+  }
+  this._decoder = null
+  this._encoding = null
+}
+inherits(CipherBase, Transform)
 
-    if (base === 'hex') {
-      base = 16;
-    }
-    assert(base === (base | 0) && base >= 2 && base <= 36);
+CipherBase.prototype.update = function (data, inputEnc, outputEnc) {
+  if (typeof data === 'string') {
+    data = Buffer.from(data, inputEnc)
+  }
 
-    number = number.toString().replace(/\s+/g, '');
-    var start = 0;
-    if (number[0] === '-') {
-      start++;
-    }
+  var outData = this._update(data)
+  if (this.hashMode) return this
 
-    if (base === 16) {
-      this._parseHex(number, start);
-    } else {
-      this._parseBase(number, base, start);
-    }
+  if (outputEnc) {
+    outData = this._toString(outData, outputEnc)
+  }
 
-    if (number[0] === '-') {
-      this.negative = 1;
-    }
+  return outData
+}
 
-    this.strip();
+CipherBase.prototype.setAutoPadding = function () {}
+CipherBase.prototype.getAuthTag = function () {
+  throw new Error('trying to get auth tag in unsupported state')
+}
 
-    if (endian !== 'le') return;
+CipherBase.prototype.setAuthTag = function () {
+  throw new Error('trying to set auth tag in unsupported state')
+}
 
-    this._initArray(this.toArray(), base, endian);
-  };
+CipherBase.prototype.setAAD = function () {
+  throw new Error('trying to set aad in unsupported state')
+}
 
-  BN.prototype._initNumber = function _initNumber (number, base, endian) {
-    if (number < 0) {
-      this.negative = 1;
-      number = -number;
-    }
-    if (number < 0x4000000) {
-      this.words = [ number & 0x3ffffff ];
-      this.length = 1;
-    } else if (number < 0x10000000000000) {
-      this.words = [
-        number & 0x3ffffff,
-        (number / 0x4000000) & 0x3ffffff
-      ];
-      this.length = 2;
+CipherBase.prototype._transform = function (data, _, next) {
+  var err
+  try {
+    if (this.hashMode) {
+      this._update(data)
     } else {
-      assert(number < 0x20000000000000); // 2 ^ 53 (unsafe)
-      this.words = [
-        number & 0x3ffffff,
-        (number / 0x4000000) & 0x3ffffff,
-        1
-      ];
-      this.length = 3;
+      this.push(this._update(data))
     }
+  } catch (e) {
+    err = e
+  } finally {
+    next(err)
+  }
+}
+CipherBase.prototype._flush = function (done) {
+  var err
+  try {
+    this.push(this.__final())
+  } catch (e) {
+    err = e
+  }
 
-    if (endian !== 'le') return;
+  done(err)
+}
+CipherBase.prototype._finalOrDigest = function (outputEnc) {
+  var outData = this.__final() || Buffer.alloc(0)
+  if (outputEnc) {
+    outData = this._toString(outData, outputEnc, true)
+  }
+  return outData
+}
 
-    // Reverse the bytes
-    this._initArray(this.toArray(), base, endian);
-  };
+CipherBase.prototype._toString = function (value, enc, fin) {
+  if (!this._decoder) {
+    this._decoder = new StringDecoder(enc)
+    this._encoding = enc
+  }
 
-  BN.prototype._initArray = function _initArray (number, base, endian) {
-    // Perhaps a Uint8Array
-    assert(typeof number.length === 'number');
-    if (number.length <= 0) {
-      this.words = [ 0 ];
-      this.length = 1;
-      return this;
-    }
+  if (this._encoding !== enc) throw new Error('can\'t switch encodings')
 
-    this.length = Math.ceil(number.length / 3);
-    this.words = new Array(this.length);
-    for (var i = 0; i < this.length; i++) {
-      this.words[i] = 0;
-    }
+  var out = this._decoder.write(value)
+  if (fin) {
+    out += this._decoder.end()
+  }
 
-    var j, w;
-    var off = 0;
-    if (endian === 'be') {
-      for (i = number.length - 1, j = 0; i >= 0; i -= 3) {
-        w = number[i] | (number[i - 1] << 8) | (number[i - 2] << 16);
-        this.words[j] |= (w << off) & 0x3ffffff;
-        this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff;
-        off += 24;
-        if (off >= 26) {
-          off -= 26;
-          j++;
-        }
-      }
-    } else if (endian === 'le') {
-      for (i = 0, j = 0; i < number.length; i += 3) {
-        w = number[i] | (number[i + 1] << 8) | (number[i + 2] << 16);
-        this.words[j] |= (w << off) & 0x3ffffff;
-        this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff;
-        off += 24;
-        if (off >= 26) {
-          off -= 26;
-          j++;
-        }
-      }
-    }
-    return this.strip();
-  };
+  return out
+}
 
-  function parseHex (str, start, end) {
-    var r = 0;
-    var len = Math.min(str.length, end);
-    for (var i = start; i < len; i++) {
-      var c = str.charCodeAt(i) - 48;
+module.exports = CipherBase
 
-      r <<= 4;
+},{"inherits":96,"safe-buffer":101,"stream":28,"string_decoder":29}],85:[function(require,module,exports){
+(function (Buffer){
+'use strict'
+var inherits = require('inherits')
+var md5 = require('./md5')
+var RIPEMD160 = require('ripemd160')
+var sha = require('sha.js')
 
-      // 'a' - 'f'
-      if (c >= 49 && c <= 54) {
-        r |= c - 49 + 0xa;
+var Base = require('cipher-base')
 
-      // 'A' - 'F'
-      } else if (c >= 17 && c <= 22) {
-        r |= c - 17 + 0xa;
+function HashNoConstructor (hash) {
+  Base.call(this, 'digest')
 
-      // '0' - '9'
-      } else {
-        r |= c & 0xf;
-      }
-    }
-    return r;
-  }
+  this._hash = hash
+  this.buffers = []
+}
 
-  BN.prototype._parseHex = function _parseHex (number, start) {
-    // Create possibly bigger array to ensure that it fits the number
-    this.length = Math.ceil((number.length - start) / 6);
-    this.words = new Array(this.length);
-    for (var i = 0; i < this.length; i++) {
-      this.words[i] = 0;
-    }
+inherits(HashNoConstructor, Base)
 
-    var j, w;
-    // Scan 24-bit chunks and add them to the number
-    var off = 0;
-    for (i = number.length - 6, j = 0; i >= start; i -= 6) {
-      w = parseHex(number, i, i + 6);
-      this.words[j] |= (w << off) & 0x3ffffff;
-      // NOTE: `0x3fffff` is intentional here, 26bits max shift + 24bit hex limb
-      this.words[j + 1] |= w >>> (26 - off) & 0x3fffff;
-      off += 24;
-      if (off >= 26) {
-        off -= 26;
-        j++;
-      }
-    }
-    if (i + 6 !== start) {
-      w = parseHex(number, start, i + 6);
-      this.words[j] |= (w << off) & 0x3ffffff;
-      this.words[j + 1] |= w >>> (26 - off) & 0x3fffff;
-    }
-    this.strip();
-  };
+HashNoConstructor.prototype._update = function (data) {
+  this.buffers.push(data)
+}
 
-  function parseBase (str, start, end, mul) {
-    var r = 0;
-    var len = Math.min(str.length, end);
-    for (var i = start; i < len; i++) {
-      var c = str.charCodeAt(i) - 48;
+HashNoConstructor.prototype._final = function () {
+  var buf = Buffer.concat(this.buffers)
+  var r = this._hash(buf)
+  this.buffers = null
 
-      r *= mul;
+  return r
+}
 
-      // 'a'
-      if (c >= 49) {
-        r += c - 49 + 0xa;
+function Hash (hash) {
+  Base.call(this, 'digest')
 
-      // 'A'
-      } else if (c >= 17) {
-        r += c - 17 + 0xa;
+  this._hash = hash
+}
 
-      // '0' - '9'
-      } else {
-        r += c;
-      }
-    }
-    return r;
-  }
+inherits(Hash, Base)
 
-  BN.prototype._parseBase = function _parseBase (number, base, start) {
-    // Initialize as zero
-    this.words = [ 0 ];
-    this.length = 1;
+Hash.prototype._update = function (data) {
+  this._hash.update(data)
+}
 
-    // Find length of limb in base
-    for (var limbLen = 0, limbPow = 1; limbPow <= 0x3ffffff; limbPow *= base) {
-      limbLen++;
-    }
-    limbLen--;
-    limbPow = (limbPow / base) | 0;
+Hash.prototype._final = function () {
+  return this._hash.digest()
+}
 
-    var total = number.length - start;
-    var mod = total % limbLen;
-    var end = Math.min(total, total - mod) + start;
+module.exports = function createHash (alg) {
+  alg = alg.toLowerCase()
+  if (alg === 'md5') return new HashNoConstructor(md5)
+  if (alg === 'rmd160' || alg === 'ripemd160') return new Hash(new RIPEMD160())
 
-    var word = 0;
-    for (var i = start; i < end; i += limbLen) {
-      word = parseBase(number, i, i + limbLen, base);
+  return new Hash(sha(alg))
+}
 
-      this.imuln(limbPow);
-      if (this.words[0] + word < 0x4000000) {
-        this.words[0] += word;
-      } else {
-        this._iaddn(word);
-      }
-    }
+}).call(this,require("buffer").Buffer)
+},{"./md5":87,"buffer":5,"cipher-base":84,"inherits":96,"ripemd160":100,"sha.js":103}],86:[function(require,module,exports){
+(function (Buffer){
+'use strict'
+var intSize = 4
+var zeroBuffer = new Buffer(intSize)
+zeroBuffer.fill(0)
 
-    if (mod !== 0) {
-      var pow = 1;
-      word = parseBase(number, i, number.length, base);
+var charSize = 8
+var hashSize = 16
 
-      for (i = 0; i < mod; i++) {
-        pow *= base;
-      }
+function toArray (buf) {
+  if ((buf.length % intSize) !== 0) {
+    var len = buf.length + (intSize - (buf.length % intSize))
+    buf = Buffer.concat([buf, zeroBuffer], len)
+  }
 
-      this.imuln(pow);
-      if (this.words[0] + word < 0x4000000) {
-        this.words[0] += word;
-      } else {
-        this._iaddn(word);
-      }
-    }
-  };
+  var arr = new Array(buf.length >>> 2)
+  for (var i = 0, j = 0; i < buf.length; i += intSize, j++) {
+    arr[j] = buf.readInt32LE(i)
+  }
 
-  BN.prototype.copy = function copy (dest) {
-    dest.words = new Array(this.length);
-    for (var i = 0; i < this.length; i++) {
-      dest.words[i] = this.words[i];
-    }
-    dest.length = this.length;
-    dest.negative = this.negative;
-    dest.red = this.red;
-  };
+  return arr
+}
 
-  BN.prototype.clone = function clone () {
-    var r = new BN(null);
-    this.copy(r);
-    return r;
-  };
+module.exports = function hash (buf, fn) {
+  var arr = fn(toArray(buf), buf.length * charSize)
+  buf = new Buffer(hashSize)
+  for (var i = 0; i < arr.length; i++) {
+    buf.writeInt32LE(arr[i], i << 2, true)
+  }
+  return buf
+}
 
-  BN.prototype._expand = function _expand (size) {
-    while (this.length < size) {
-      this.words[this.length++] = 0;
-    }
-    return this;
-  };
+}).call(this,require("buffer").Buffer)
+},{"buffer":5}],87:[function(require,module,exports){
+'use strict'
+/*
+ * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
+ * Digest Algorithm, as defined in RFC 1321.
+ * Version 2.1 Copyright (C) Paul Johnston 1999 - 2002.
+ * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
+ * Distributed under the BSD License
+ * See http://pajhome.org.uk/crypt/md5 for more info.
+ */
 
-  // Remove leading `0` from `this`
-  BN.prototype.strip = function strip () {
-    while (this.length > 1 && this.words[this.length - 1] === 0) {
-      this.length--;
-    }
-    return this._normSign();
-  };
+var makeHash = require('./make-hash')
 
-  BN.prototype._normSign = function _normSign () {
-    // -0 = 0
-    if (this.length === 1 && this.words[0] === 0) {
-      this.negative = 0;
-    }
-    return this;
-  };
+/*
+ * Calculate the MD5 of an array of little-endian words, and a bit length
+ */
+function core_md5 (x, len) {
+  /* append padding */
+  x[len >> 5] |= 0x80 << ((len) % 32)
+  x[(((len + 64) >>> 9) << 4) + 14] = len
 
-  BN.prototype.inspect = function inspect () {
-    return (this.red ? '<BN-R: ' : '<BN: ') + this.toString(16) + '>';
-  };
+  var a = 1732584193
+  var b = -271733879
+  var c = -1732584194
+  var d = 271733878
 
-  /*
+  for (var i = 0; i < x.length; i += 16) {
+    var olda = a
+    var oldb = b
+    var oldc = c
+    var oldd = d
 
-  var zeros = [];
-  var groupSizes = [];
-  var groupBases = [];
+    a = md5_ff(a, b, c, d, x[i + 0], 7, -680876936)
+    d = md5_ff(d, a, b, c, x[i + 1], 12, -389564586)
+    c = md5_ff(c, d, a, b, x[i + 2], 17, 606105819)
+    b = md5_ff(b, c, d, a, x[i + 3], 22, -1044525330)
+    a = md5_ff(a, b, c, d, x[i + 4], 7, -176418897)
+    d = md5_ff(d, a, b, c, x[i + 5], 12, 1200080426)
+    c = md5_ff(c, d, a, b, x[i + 6], 17, -1473231341)
+    b = md5_ff(b, c, d, a, x[i + 7], 22, -45705983)
+    a = md5_ff(a, b, c, d, x[i + 8], 7, 1770035416)
+    d = md5_ff(d, a, b, c, x[i + 9], 12, -1958414417)
+    c = md5_ff(c, d, a, b, x[i + 10], 17, -42063)
+    b = md5_ff(b, c, d, a, x[i + 11], 22, -1990404162)
+    a = md5_ff(a, b, c, d, x[i + 12], 7, 1804603682)
+    d = md5_ff(d, a, b, c, x[i + 13], 12, -40341101)
+    c = md5_ff(c, d, a, b, x[i + 14], 17, -1502002290)
+    b = md5_ff(b, c, d, a, x[i + 15], 22, 1236535329)
 
-  var s = '';
-  var i = -1;
-  while (++i < BN.wordSize) {
-    zeros[i] = s;
-    s += '0';
-  }
-  groupSizes[0] = 0;
-  groupSizes[1] = 0;
-  groupBases[0] = 0;
-  groupBases[1] = 0;
-  var base = 2 - 1;
-  while (++base < 36 + 1) {
-    var groupSize = 0;
-    var groupBase = 1;
-    while (groupBase < (1 << BN.wordSize) / base) {
-      groupBase *= base;
-      groupSize += 1;
-    }
-    groupSizes[base] = groupSize;
-    groupBases[base] = groupBase;
-  }
+    a = md5_gg(a, b, c, d, x[i + 1], 5, -165796510)
+    d = md5_gg(d, a, b, c, x[i + 6], 9, -1069501632)
+    c = md5_gg(c, d, a, b, x[i + 11], 14, 643717713)
+    b = md5_gg(b, c, d, a, x[i + 0], 20, -373897302)
+    a = md5_gg(a, b, c, d, x[i + 5], 5, -701558691)
+    d = md5_gg(d, a, b, c, x[i + 10], 9, 38016083)
+    c = md5_gg(c, d, a, b, x[i + 15], 14, -660478335)
+    b = md5_gg(b, c, d, a, x[i + 4], 20, -405537848)
+    a = md5_gg(a, b, c, d, x[i + 9], 5, 568446438)
+    d = md5_gg(d, a, b, c, x[i + 14], 9, -1019803690)
+    c = md5_gg(c, d, a, b, x[i + 3], 14, -187363961)
+    b = md5_gg(b, c, d, a, x[i + 8], 20, 1163531501)
+    a = md5_gg(a, b, c, d, x[i + 13], 5, -1444681467)
+    d = md5_gg(d, a, b, c, x[i + 2], 9, -51403784)
+    c = md5_gg(c, d, a, b, x[i + 7], 14, 1735328473)
+    b = md5_gg(b, c, d, a, x[i + 12], 20, -1926607734)
 
-  */
+    a = md5_hh(a, b, c, d, x[i + 5], 4, -378558)
+    d = md5_hh(d, a, b, c, x[i + 8], 11, -2022574463)
+    c = md5_hh(c, d, a, b, x[i + 11], 16, 1839030562)
+    b = md5_hh(b, c, d, a, x[i + 14], 23, -35309556)
+    a = md5_hh(a, b, c, d, x[i + 1], 4, -1530992060)
+    d = md5_hh(d, a, b, c, x[i + 4], 11, 1272893353)
+    c = md5_hh(c, d, a, b, x[i + 7], 16, -155497632)
+    b = md5_hh(b, c, d, a, x[i + 10], 23, -1094730640)
+    a = md5_hh(a, b, c, d, x[i + 13], 4, 681279174)
+    d = md5_hh(d, a, b, c, x[i + 0], 11, -358537222)
+    c = md5_hh(c, d, a, b, x[i + 3], 16, -722521979)
+    b = md5_hh(b, c, d, a, x[i + 6], 23, 76029189)
+    a = md5_hh(a, b, c, d, x[i + 9], 4, -640364487)
+    d = md5_hh(d, a, b, c, x[i + 12], 11, -421815835)
+    c = md5_hh(c, d, a, b, x[i + 15], 16, 530742520)
+    b = md5_hh(b, c, d, a, x[i + 2], 23, -995338651)
 
-  var zeros = [
-    '',
-    '0',
-    '00',
-    '000',
-    '0000',
-    '00000',
-    '000000',
-    '0000000',
-    '00000000',
-    '000000000',
-    '0000000000',
-    '00000000000',
-    '000000000000',
-    '0000000000000',
-    '00000000000000',
-    '000000000000000',
-    '0000000000000000',
-    '00000000000000000',
-    '000000000000000000',
-    '0000000000000000000',
-    '00000000000000000000',
-    '000000000000000000000',
-    '0000000000000000000000',
-    '00000000000000000000000',
-    '000000000000000000000000',
-    '0000000000000000000000000'
-  ];
+    a = md5_ii(a, b, c, d, x[i + 0], 6, -198630844)
+    d = md5_ii(d, a, b, c, x[i + 7], 10, 1126891415)
+    c = md5_ii(c, d, a, b, x[i + 14], 15, -1416354905)
+    b = md5_ii(b, c, d, a, x[i + 5], 21, -57434055)
+    a = md5_ii(a, b, c, d, x[i + 12], 6, 1700485571)
+    d = md5_ii(d, a, b, c, x[i + 3], 10, -1894986606)
+    c = md5_ii(c, d, a, b, x[i + 10], 15, -1051523)
+    b = md5_ii(b, c, d, a, x[i + 1], 21, -2054922799)
+    a = md5_ii(a, b, c, d, x[i + 8], 6, 1873313359)
+    d = md5_ii(d, a, b, c, x[i + 15], 10, -30611744)
+    c = md5_ii(c, d, a, b, x[i + 6], 15, -1560198380)
+    b = md5_ii(b, c, d, a, x[i + 13], 21, 1309151649)
+    a = md5_ii(a, b, c, d, x[i + 4], 6, -145523070)
+    d = md5_ii(d, a, b, c, x[i + 11], 10, -1120210379)
+    c = md5_ii(c, d, a, b, x[i + 2], 15, 718787259)
+    b = md5_ii(b, c, d, a, x[i + 9], 21, -343485551)
 
-  var groupSizes = [
-    0, 0,
-    25, 16, 12, 11, 10, 9, 8,
-    8, 7, 7, 7, 7, 6, 6,
-    6, 6, 6, 6, 6, 5, 5,
-    5, 5, 5, 5, 5, 5, 5,
-    5, 5, 5, 5, 5, 5, 5
-  ];
+    a = safe_add(a, olda)
+    b = safe_add(b, oldb)
+    c = safe_add(c, oldc)
+    d = safe_add(d, oldd)
+  }
 
-  var groupBases = [
-    0, 0,
-    33554432, 43046721, 16777216, 48828125, 60466176, 40353607, 16777216,
-    43046721, 10000000, 19487171, 35831808, 62748517, 7529536, 11390625,
-    16777216, 24137569, 34012224, 47045881, 64000000, 4084101, 5153632,
-    6436343, 7962624, 9765625, 11881376, 14348907, 17210368, 20511149,
-    24300000, 28629151, 33554432, 39135393, 45435424, 52521875, 60466176
-  ];
+  return [a, b, c, d]
+}
 
-  BN.prototype.toString = function toString (base, padding) {
-    base = base || 10;
-    padding = padding | 0 || 1;
+/*
+ * These functions implement the four basic operations the algorithm uses.
+ */
+function md5_cmn (q, a, b, x, s, t) {
+  return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s), b)
+}
 
-    var out;
-    if (base === 16 || base === 'hex') {
-      out = '';
-      var off = 0;
-      var carry = 0;
-      for (var i = 0; i < this.length; i++) {
-        var w = this.words[i];
-        var word = (((w << off) | carry) & 0xffffff).toString(16);
-        carry = (w >>> (24 - off)) & 0xffffff;
-        if (carry !== 0 || i !== this.length - 1) {
-          out = zeros[6 - word.length] + word + out;
-        } else {
-          out = word + out;
-        }
-        off += 2;
-        if (off >= 26) {
-          off -= 26;
-          i--;
-        }
-      }
-      if (carry !== 0) {
-        out = carry.toString(16) + out;
-      }
-      while (out.length % padding !== 0) {
-        out = '0' + out;
-      }
-      if (this.negative !== 0) {
-        out = '-' + out;
-      }
-      return out;
-    }
+function md5_ff (a, b, c, d, x, s, t) {
+  return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t)
+}
 
-    if (base === (base | 0) && base >= 2 && base <= 36) {
-      // var groupSize = Math.floor(BN.wordSize * Math.LN2 / Math.log(base));
-      var groupSize = groupSizes[base];
-      // var groupBase = Math.pow(base, groupSize);
-      var groupBase = groupBases[base];
-      out = '';
-      var c = this.clone();
-      c.negative = 0;
-      while (!c.isZero()) {
-        var r = c.modn(groupBase).toString(base);
-        c = c.idivn(groupBase);
+function md5_gg (a, b, c, d, x, s, t) {
+  return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t)
+}
 
-        if (!c.isZero()) {
-          out = zeros[groupSize - r.length] + r + out;
-        } else {
-          out = r + out;
-        }
-      }
-      if (this.isZero()) {
-        out = '0' + out;
-      }
-      while (out.length % padding !== 0) {
-        out = '0' + out;
-      }
-      if (this.negative !== 0) {
-        out = '-' + out;
-      }
-      return out;
-    }
+function md5_hh (a, b, c, d, x, s, t) {
+  return md5_cmn(b ^ c ^ d, a, b, x, s, t)
+}
 
-    assert(false, 'Base should be between 2 and 36');
-  };
+function md5_ii (a, b, c, d, x, s, t) {
+  return md5_cmn(c ^ (b | (~d)), a, b, x, s, t)
+}
 
-  BN.prototype.toNumber = function toNumber () {
-    var ret = this.words[0];
-    if (this.length === 2) {
-      ret += this.words[1] * 0x4000000;
-    } else if (this.length === 3 && this.words[2] === 0x01) {
-      // NOTE: at this stage it is known that the top bit is set
-      ret += 0x10000000000000 + (this.words[1] * 0x4000000);
-    } else if (this.length > 2) {
-      assert(false, 'Number can only safely store up to 53 bits');
-    }
-    return (this.negative !== 0) ? -ret : ret;
-  };
+/*
+ * Add integers, wrapping at 2^32. This uses 16-bit operations internally
+ * to work around bugs in some JS interpreters.
+ */
+function safe_add (x, y) {
+  var lsw = (x & 0xFFFF) + (y & 0xFFFF)
+  var msw = (x >> 16) + (y >> 16) + (lsw >> 16)
+  return (msw << 16) | (lsw & 0xFFFF)
+}
 
-  BN.prototype.toJSON = function toJSON () {
-    return this.toString(16);
-  };
+/*
+ * Bitwise rotate a 32-bit number to the left.
+ */
+function bit_rol (num, cnt) {
+  return (num << cnt) | (num >>> (32 - cnt))
+}
 
-  BN.prototype.toBuffer = function toBuffer (endian, length) {
-    assert(typeof Buffer !== 'undefined');
-    return this.toArrayLike(Buffer, endian, length);
-  };
+module.exports = function md5 (buf) {
+  return makeHash(buf, core_md5)
+}
 
-  BN.prototype.toArray = function toArray (endian, length) {
-    return this.toArrayLike(Array, endian, length);
-  };
+},{"./make-hash":86}],88:[function(require,module,exports){
+'use strict'
+var inherits = require('inherits')
+var Legacy = require('./legacy')
+var Base = require('cipher-base')
+var Buffer = require('safe-buffer').Buffer
+var md5 = require('create-hash/md5')
+var RIPEMD160 = require('ripemd160')
 
-  BN.prototype.toArrayLike = function toArrayLike (ArrayType, endian, length) {
-    var byteLength = this.byteLength();
-    var reqLength = length || Math.max(1, byteLength);
-    assert(byteLength <= reqLength, 'byte array longer than desired length');
-    assert(reqLength > 0, 'Requested array length <= 0');
+var sha = require('sha.js')
 
-    this.strip();
-    var littleEndian = endian === 'le';
-    var res = new ArrayType(reqLength);
+var ZEROS = Buffer.alloc(128)
 
-    var b, i;
-    var q = this.clone();
-    if (!littleEndian) {
-      // Assume big-endian
-      for (i = 0; i < reqLength - byteLength; i++) {
-        res[i] = 0;
-      }
+function Hmac (alg, key) {
+  Base.call(this, 'digest')
+  if (typeof key === 'string') {
+    key = Buffer.from(key)
+  }
 
-      for (i = 0; !q.isZero(); i++) {
-        b = q.andln(0xff);
-        q.iushrn(8);
+  var blocksize = (alg === 'sha512' || alg === 'sha384') ? 128 : 64
 
-        res[reqLength - i - 1] = b;
-      }
-    } else {
-      for (i = 0; !q.isZero(); i++) {
-        b = q.andln(0xff);
-        q.iushrn(8);
+  this._alg = alg
+  this._key = key
+  if (key.length > blocksize) {
+    var hash = alg === 'rmd160' ? new RIPEMD160() : sha(alg)
+    key = hash.update(key).digest()
+  } else if (key.length < blocksize) {
+    key = Buffer.concat([key, ZEROS], blocksize)
+  }
 
-        res[i] = b;
-      }
+  var ipad = this._ipad = Buffer.allocUnsafe(blocksize)
+  var opad = this._opad = Buffer.allocUnsafe(blocksize)
 
-      for (; i < reqLength; i++) {
-        res[i] = 0;
-      }
-    }
+  for (var i = 0; i < blocksize; i++) {
+    ipad[i] = key[i] ^ 0x36
+    opad[i] = key[i] ^ 0x5C
+  }
+  this._hash = alg === 'rmd160' ? new RIPEMD160() : sha(alg)
+  this._hash.update(ipad)
+}
 
-    return res;
-  };
+inherits(Hmac, Base)
 
-  if (Math.clz32) {
-    BN.prototype._countBits = function _countBits (w) {
-      return 32 - Math.clz32(w);
-    };
-  } else {
-    BN.prototype._countBits = function _countBits (w) {
-      var t = w;
-      var r = 0;
-      if (t >= 0x1000) {
-        r += 13;
-        t >>>= 13;
-      }
-      if (t >= 0x40) {
-        r += 7;
-        t >>>= 7;
-      }
-      if (t >= 0x8) {
-        r += 4;
-        t >>>= 4;
-      }
-      if (t >= 0x02) {
-        r += 2;
-        t >>>= 2;
-      }
-      return r + t;
-    };
+Hmac.prototype._update = function (data) {
+  this._hash.update(data)
+}
+
+Hmac.prototype._final = function () {
+  var h = this._hash.digest()
+  var hash = this._alg === 'rmd160' ? new RIPEMD160() : sha(this._alg)
+  return hash.update(this._opad).update(h).digest()
+}
+
+module.exports = function createHmac (alg, key) {
+  alg = alg.toLowerCase()
+  if (alg === 'rmd160' || alg === 'ripemd160') {
+    return new Hmac('rmd160', key)
   }
+  if (alg === 'md5') {
+    return new Legacy(md5, key)
+  }
+  return new Hmac(alg, key)
+}
 
-  BN.prototype._zeroBits = function _zeroBits (w) {
-    // Short-cut
-    if (w === 0) return 26;
+},{"./legacy":89,"cipher-base":84,"create-hash/md5":87,"inherits":96,"ripemd160":100,"safe-buffer":101,"sha.js":103}],89:[function(require,module,exports){
+'use strict'
+var inherits = require('inherits')
+var Buffer = require('safe-buffer').Buffer
 
-    var t = w;
-    var r = 0;
-    if ((t & 0x1fff) === 0) {
-      r += 13;
-      t >>>= 13;
-    }
-    if ((t & 0x7f) === 0) {
-      r += 7;
-      t >>>= 7;
-    }
-    if ((t & 0xf) === 0) {
-      r += 4;
-      t >>>= 4;
-    }
-    if ((t & 0x3) === 0) {
-      r += 2;
-      t >>>= 2;
-    }
-    if ((t & 0x1) === 0) {
-      r++;
-    }
-    return r;
-  };
+var Base = require('cipher-base')
 
-  // Return number of used bits in a BN
-  BN.prototype.bitLength = function bitLength () {
-    var w = this.words[this.length - 1];
-    var hi = this._countBits(w);
-    return (this.length - 1) * 26 + hi;
-  };
+var ZEROS = Buffer.alloc(128)
+var blocksize = 64
 
-  function toBitArray (num) {
-    var w = new Array(num.bitLength());
+function Hmac (alg, key) {
+  Base.call(this, 'digest')
+  if (typeof key === 'string') {
+    key = Buffer.from(key)
+  }
 
-    for (var bit = 0; bit < w.length; bit++) {
-      var off = (bit / 26) | 0;
-      var wbit = bit % 26;
+  this._alg = alg
+  this._key = key
 
-      w[bit] = (num.words[off] & (1 << wbit)) >>> wbit;
-    }
+  if (key.length > blocksize) {
+    key = alg(key)
+  } else if (key.length < blocksize) {
+    key = Buffer.concat([key, ZEROS], blocksize)
+  }
 
-    return w;
+  var ipad = this._ipad = Buffer.allocUnsafe(blocksize)
+  var opad = this._opad = Buffer.allocUnsafe(blocksize)
+
+  for (var i = 0; i < blocksize; i++) {
+    ipad[i] = key[i] ^ 0x36
+    opad[i] = key[i] ^ 0x5C
   }
 
-  // Number of trailing zero bits
-  BN.prototype.zeroBits = function zeroBits () {
-    if (this.isZero()) return 0;
+  this._hash = [ipad]
+}
 
-    var r = 0;
-    for (var i = 0; i < this.length; i++) {
-      var b = this._zeroBits(this.words[i]);
-      r += b;
-      if (b !== 26) break;
-    }
-    return r;
-  };
+inherits(Hmac, Base)
 
-  BN.prototype.byteLength = function byteLength () {
-    return Math.ceil(this.bitLength() / 8);
-  };
+Hmac.prototype._update = function (data) {
+  this._hash.push(data)
+}
 
-  BN.prototype.toTwos = function toTwos (width) {
-    if (this.negative !== 0) {
-      return this.abs().inotn(width).iaddn(1);
-    }
-    return this.clone();
-  };
+Hmac.prototype._final = function () {
+  var h = this._alg(Buffer.concat(this._hash))
+  return this._alg(Buffer.concat([this._opad, h]))
+}
+module.exports = Hmac
 
-  BN.prototype.fromTwos = function fromTwos (width) {
-    if (this.testn(width - 1)) {
-      return this.notn(width).iaddn(1).ineg();
-    }
-    return this.clone();
-  };
+},{"cipher-base":84,"inherits":96,"safe-buffer":101}],90:[function(require,module,exports){
+var assert = require('assert')
+var BigInteger = require('bigi')
 
-  BN.prototype.isNeg = function isNeg () {
-    return this.negative !== 0;
-  };
+var Point = require('./point')
 
-  // Return negative clone of `this`
-  BN.prototype.neg = function neg () {
-    return this.clone().ineg();
-  };
+function Curve (p, a, b, Gx, Gy, n, h) {
+  this.p = p
+  this.a = a
+  this.b = b
+  this.G = Point.fromAffine(this, Gx, Gy)
+  this.n = n
+  this.h = h
 
-  BN.prototype.ineg = function ineg () {
-    if (!this.isZero()) {
-      this.negative ^= 1;
-    }
+  this.infinity = new Point(this, null, null, BigInteger.ZERO)
 
-    return this;
-  };
+  // result caching
+  this.pOverFour = p.add(BigInteger.ONE).shiftRight(2)
 
-  // Or `num` with `this` in-place
-  BN.prototype.iuor = function iuor (num) {
-    while (this.length < num.length) {
-      this.words[this.length++] = 0;
-    }
+  // determine size of p in bytes
+  this.pLength = Math.floor((this.p.bitLength() + 7) / 8)
+}
 
-    for (var i = 0; i < num.length; i++) {
-      this.words[i] = this.words[i] | num.words[i];
-    }
+Curve.prototype.pointFromX = function (isOdd, x) {
+  var alpha = x.pow(3).add(this.a.multiply(x)).add(this.b).mod(this.p)
+  var beta = alpha.modPow(this.pOverFour, this.p) // XXX: not compatible with all curves
 
-    return this.strip();
-  };
+  var y = beta
+  if (beta.isEven() ^ !isOdd) {
+    y = this.p.subtract(y) // -y % p
+  }
 
-  BN.prototype.ior = function ior (num) {
-    assert((this.negative | num.negative) === 0);
-    return this.iuor(num);
-  };
+  return Point.fromAffine(this, x, y)
+}
 
-  // Or `num` with `this`
-  BN.prototype.or = function or (num) {
-    if (this.length > num.length) return this.clone().ior(num);
-    return num.clone().ior(this);
-  };
+Curve.prototype.isInfinity = function (Q) {
+  if (Q === this.infinity) return true
 
-  BN.prototype.uor = function uor (num) {
-    if (this.length > num.length) return this.clone().iuor(num);
-    return num.clone().iuor(this);
-  };
+  return Q.z.signum() === 0 && Q.y.signum() !== 0
+}
 
-  // And `num` with `this` in-place
-  BN.prototype.iuand = function iuand (num) {
-    // b = min-length(num, this)
-    var b;
-    if (this.length > num.length) {
-      b = num;
-    } else {
-      b = this;
-    }
+Curve.prototype.isOnCurve = function (Q) {
+  if (this.isInfinity(Q)) return true
 
-    for (var i = 0; i < b.length; i++) {
-      this.words[i] = this.words[i] & num.words[i];
-    }
+  var x = Q.affineX
+  var y = Q.affineY
+  var a = this.a
+  var b = this.b
+  var p = this.p
 
-    this.length = b.length;
+  // Check that xQ and yQ are integers in the interval [0, p - 1]
+  if (x.signum() < 0 || x.compareTo(p) >= 0) return false
+  if (y.signum() < 0 || y.compareTo(p) >= 0) return false
 
-    return this.strip();
-  };
+  // and check that y^2 = x^3 + ax + b (mod p)
+  var lhs = y.square().mod(p)
+  var rhs = x.pow(3).add(a.multiply(x)).add(b).mod(p)
+  return lhs.equals(rhs)
+}
 
-  BN.prototype.iand = function iand (num) {
-    assert((this.negative | num.negative) === 0);
-    return this.iuand(num);
-  };
+/**
+ * Validate an elliptic curve point.
+ *
+ * See SEC 1, section 3.2.2.1: Elliptic Curve Public Key Validation Primitive
+ */
+Curve.prototype.validate = function (Q) {
+  // Check Q != O
+  assert(!this.isInfinity(Q), 'Point is at infinity')
+  assert(this.isOnCurve(Q), 'Point is not on the curve')
 
-  // And `num` with `this`
-  BN.prototype.and = function and (num) {
-    if (this.length > num.length) return this.clone().iand(num);
-    return num.clone().iand(this);
-  };
+  // Check nQ = O (where Q is a scalar multiple of G)
+  var nQ = Q.multiply(this.n)
+  assert(this.isInfinity(nQ), 'Point is not a scalar multiple of G')
 
-  BN.prototype.uand = function uand (num) {
-    if (this.length > num.length) return this.clone().iuand(num);
-    return num.clone().iuand(this);
-  };
+  return true
+}
 
-  // Xor `num` with `this` in-place
-  BN.prototype.iuxor = function iuxor (num) {
-    // a.length > b.length
-    var a;
-    var b;
-    if (this.length > num.length) {
-      a = this;
-      b = num;
-    } else {
-      a = num;
-      b = this;
-    }
+module.exports = Curve
 
-    for (var i = 0; i < b.length; i++) {
-      this.words[i] = a.words[i] ^ b.words[i];
-    }
+},{"./point":94,"assert":1,"bigi":39}],91:[function(require,module,exports){
+module.exports={
+  "secp128r1": {
+    "p": "fffffffdffffffffffffffffffffffff",
+    "a": "fffffffdfffffffffffffffffffffffc",
+    "b": "e87579c11079f43dd824993c2cee5ed3",
+    "n": "fffffffe0000000075a30d1b9038a115",
+    "h": "01",
+    "Gx": "161ff7528b899b2d0c28607ca52c5b86",
+    "Gy": "cf5ac8395bafeb13c02da292dded7a83"
+  },
+  "secp160k1": {
+    "p": "fffffffffffffffffffffffffffffffeffffac73",
+    "a": "00",
+    "b": "07",
+    "n": "0100000000000000000001b8fa16dfab9aca16b6b3",
+    "h": "01",
+    "Gx": "3b4c382ce37aa192a4019e763036f4f5dd4d7ebb",
+    "Gy": "938cf935318fdced6bc28286531733c3f03c4fee"
+  },
+  "secp160r1": {
+    "p": "ffffffffffffffffffffffffffffffff7fffffff",
+    "a": "ffffffffffffffffffffffffffffffff7ffffffc",
+    "b": "1c97befc54bd7a8b65acf89f81d4d4adc565fa45",
+    "n": "0100000000000000000001f4c8f927aed3ca752257",
+    "h": "01",
+    "Gx": "4a96b5688ef573284664698968c38bb913cbfc82",
+    "Gy": "23a628553168947d59dcc912042351377ac5fb32"
+  },
+  "secp192k1": {
+    "p": "fffffffffffffffffffffffffffffffffffffffeffffee37",
+    "a": "00",
+    "b": "03",
+    "n": "fffffffffffffffffffffffe26f2fc170f69466a74defd8d",
+    "h": "01",
+    "Gx": "db4ff10ec057e9ae26b07d0280b7f4341da5d1b1eae06c7d",
+    "Gy": "9b2f2f6d9c5628a7844163d015be86344082aa88d95e2f9d"
+  },
+  "secp192r1": {
+    "p": "fffffffffffffffffffffffffffffffeffffffffffffffff",
+    "a": "fffffffffffffffffffffffffffffffefffffffffffffffc",
+    "b": "64210519e59c80e70fa7e9ab72243049feb8deecc146b9b1",
+    "n": "ffffffffffffffffffffffff99def836146bc9b1b4d22831",
+    "h": "01",
+    "Gx": "188da80eb03090f67cbf20eb43a18800f4ff0afd82ff1012",
+    "Gy": "07192b95ffc8da78631011ed6b24cdd573f977a11e794811"
+  },
+  "secp256k1": {
+    "p": "fffffffffffffffffffffffffffffffffffffffffffffffffffffffefffffc2f",
+    "a": "00",
+    "b": "07",
+    "n": "fffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141",
+    "h": "01",
+    "Gx": "79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798",
+    "Gy": "483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8"
+  },
+  "secp256r1": {
+    "p": "ffffffff00000001000000000000000000000000ffffffffffffffffffffffff",
+    "a": "ffffffff00000001000000000000000000000000fffffffffffffffffffffffc",
+    "b": "5ac635d8aa3a93e7b3ebbd55769886bc651d06b0cc53b0f63bce3c3e27d2604b",
+    "n": "ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632551",
+    "h": "01",
+    "Gx": "6b17d1f2e12c4247f8bce6e563a440f277037d812deb33a0f4a13945d898c296",
+    "Gy": "4fe342e2fe1a7f9b8ee7eb4a7c0f9e162bce33576b315ececbb6406837bf51f5"
+  }
+}
 
-    if (this !== a) {
-      for (; i < a.length; i++) {
-        this.words[i] = a.words[i];
-      }
-    }
+},{}],92:[function(require,module,exports){
+var Point = require('./point')
+var Curve = require('./curve')
 
-    this.length = a.length;
+var getCurveByName = require('./names')
 
-    return this.strip();
-  };
+module.exports = {
+  Curve: Curve,
+  Point: Point,
+  getCurveByName: getCurveByName
+}
 
-  BN.prototype.ixor = function ixor (num) {
-    assert((this.negative | num.negative) === 0);
-    return this.iuxor(num);
-  };
+},{"./curve":90,"./names":93,"./point":94}],93:[function(require,module,exports){
+var BigInteger = require('bigi')
 
-  // Xor `num` with `this`
-  BN.prototype.xor = function xor (num) {
-    if (this.length > num.length) return this.clone().ixor(num);
-    return num.clone().ixor(this);
-  };
+var curves = require('./curves.json')
+var Curve = require('./curve')
 
-  BN.prototype.uxor = function uxor (num) {
-    if (this.length > num.length) return this.clone().iuxor(num);
-    return num.clone().iuxor(this);
-  };
+function getCurveByName (name) {
+  var curve = curves[name]
+  if (!curve) return null
 
-  // Not ``this`` with ``width`` bitwidth
-  BN.prototype.inotn = function inotn (width) {
-    assert(typeof width === 'number' && width >= 0);
+  var p = new BigInteger(curve.p, 16)
+  var a = new BigInteger(curve.a, 16)
+  var b = new BigInteger(curve.b, 16)
+  var n = new BigInteger(curve.n, 16)
+  var h = new BigInteger(curve.h, 16)
+  var Gx = new BigInteger(curve.Gx, 16)
+  var Gy = new BigInteger(curve.Gy, 16)
 
-    var bytesNeeded = Math.ceil(width / 26) | 0;
-    var bitsLeft = width % 26;
+  return new Curve(p, a, b, Gx, Gy, n, h)
+}
 
-    // Extend the buffer with leading zeroes
-    this._expand(bytesNeeded);
+module.exports = getCurveByName
 
-    if (bitsLeft > 0) {
-      bytesNeeded--;
-    }
+},{"./curve":90,"./curves.json":91,"bigi":39}],94:[function(require,module,exports){
+var assert = require('assert')
+var Buffer = require('safe-buffer').Buffer
+var BigInteger = require('bigi')
 
-    // Handle complete words
-    for (var i = 0; i < bytesNeeded; i++) {
-      this.words[i] = ~this.words[i] & 0x3ffffff;
-    }
+var THREE = BigInteger.valueOf(3)
 
-    // Handle the residue
-    if (bitsLeft > 0) {
-      this.words[i] = ~this.words[i] & (0x3ffffff >> (26 - bitsLeft));
-    }
+function Point (curve, x, y, z) {
+  assert.notStrictEqual(z, undefined, 'Missing Z coordinate')
 
-    // And remove leading zeroes
-    return this.strip();
-  };
+  this.curve = curve
+  this.x = x
+  this.y = y
+  this.z = z
+  this._zInv = null
 
-  BN.prototype.notn = function notn (width) {
-    return this.clone().inotn(width);
-  };
+  this.compressed = true
+}
 
-  // Set `bit` of `this`
-  BN.prototype.setn = function setn (bit, val) {
-    assert(typeof bit === 'number' && bit >= 0);
+Object.defineProperty(Point.prototype, 'zInv', {
+  get: function () {
+    if (this._zInv === null) {
+      this._zInv = this.z.modInverse(this.curve.p)
+    }
 
-    var off = (bit / 26) | 0;
-    var wbit = bit % 26;
+    return this._zInv
+  }
+})
 
-    this._expand(off + 1);
+Object.defineProperty(Point.prototype, 'affineX', {
+  get: function () {
+    return this.x.multiply(this.zInv).mod(this.curve.p)
+  }
+})
 
-    if (val) {
-      this.words[off] = this.words[off] | (1 << wbit);
-    } else {
-      this.words[off] = this.words[off] & ~(1 << wbit);
-    }
+Object.defineProperty(Point.prototype, 'affineY', {
+  get: function () {
+    return this.y.multiply(this.zInv).mod(this.curve.p)
+  }
+})
 
-    return this.strip();
-  };
+Point.fromAffine = function (curve, x, y) {
+  return new Point(curve, x, y, BigInteger.ONE)
+}
 
-  // Add `num` to `this` in-place
-  BN.prototype.iadd = function iadd (num) {
-    var r;
+Point.prototype.equals = function (other) {
+  if (other === this) return true
+  if (this.curve.isInfinity(this)) return this.curve.isInfinity(other)
+  if (this.curve.isInfinity(other)) return this.curve.isInfinity(this)
 
-    // negative + positive
-    if (this.negative !== 0 && num.negative === 0) {
-      this.negative = 0;
-      r = this.isub(num);
-      this.negative ^= 1;
-      return this._normSign();
+  // u = Y2 * Z1 - Y1 * Z2
+  var u = other.y.multiply(this.z).subtract(this.y.multiply(other.z)).mod(this.curve.p)
 
-    // positive + negative
-    } else if (this.negative === 0 && num.negative !== 0) {
-      num.negative = 0;
-      r = this.isub(num);
-      num.negative = 1;
-      return r._normSign();
-    }
+  if (u.signum() !== 0) return false
 
-    // a.length > b.length
-    var a, b;
-    if (this.length > num.length) {
-      a = this;
-      b = num;
-    } else {
-      a = num;
-      b = this;
-    }
+  // v = X2 * Z1 - X1 * Z2
+  var v = other.x.multiply(this.z).subtract(this.x.multiply(other.z)).mod(this.curve.p)
 
-    var carry = 0;
-    for (var i = 0; i < b.length; i++) {
-      r = (a.words[i] | 0) + (b.words[i] | 0) + carry;
-      this.words[i] = r & 0x3ffffff;
-      carry = r >>> 26;
-    }
-    for (; carry !== 0 && i < a.length; i++) {
-      r = (a.words[i] | 0) + carry;
-      this.words[i] = r & 0x3ffffff;
-      carry = r >>> 26;
-    }
+  return v.signum() === 0
+}
 
-    this.length = a.length;
-    if (carry !== 0) {
-      this.words[this.length] = carry;
-      this.length++;
-    // Copy the rest of the words
-    } else if (a !== this) {
-      for (; i < a.length; i++) {
-        this.words[i] = a.words[i];
-      }
-    }
+Point.prototype.negate = function () {
+  var y = this.curve.p.subtract(this.y)
 
-    return this;
-  };
+  return new Point(this.curve, this.x, y, this.z)
+}
 
-  // Add `num` to `this`
-  BN.prototype.add = function add (num) {
-    var res;
-    if (num.negative !== 0 && this.negative === 0) {
-      num.negative = 0;
-      res = this.sub(num);
-      num.negative ^= 1;
-      return res;
-    } else if (num.negative === 0 && this.negative !== 0) {
-      this.negative = 0;
-      res = num.sub(this);
-      this.negative = 1;
-      return res;
+Point.prototype.add = function (b) {
+  if (this.curve.isInfinity(this)) return b
+  if (this.curve.isInfinity(b)) return this
+
+  var x1 = this.x
+  var y1 = this.y
+  var x2 = b.x
+  var y2 = b.y
+
+  // u = Y2 * Z1 - Y1 * Z2
+  var u = y2.multiply(this.z).subtract(y1.multiply(b.z)).mod(this.curve.p)
+  // v = X2 * Z1 - X1 * Z2
+  var v = x2.multiply(this.z).subtract(x1.multiply(b.z)).mod(this.curve.p)
+
+  if (v.signum() === 0) {
+    if (u.signum() === 0) {
+      return this.twice() // this == b, so double
     }
 
-    if (this.length > num.length) return this.clone().iadd(num);
+    return this.curve.infinity // this = -b, so infinity
+  }
 
-    return num.clone().iadd(this);
-  };
+  var v2 = v.square()
+  var v3 = v2.multiply(v)
+  var x1v2 = x1.multiply(v2)
+  var zu2 = u.square().multiply(this.z)
 
-  // Subtract `num` from `this` in-place
-  BN.prototype.isub = function isub (num) {
-    // this - (-num) = this + num
-    if (num.negative !== 0) {
-      num.negative = 0;
-      var r = this.iadd(num);
-      num.negative = 1;
-      return r._normSign();
+  // x3 = v * (z2 * (z1 * u^2 - 2 * x1 * v^2) - v^3)
+  var x3 = zu2.subtract(x1v2.shiftLeft(1)).multiply(b.z).subtract(v3).multiply(v).mod(this.curve.p)
+  // y3 = z2 * (3 * x1 * u * v^2 - y1 * v^3 - z1 * u^3) + u * v^3
+  var y3 = x1v2.multiply(THREE).multiply(u).subtract(y1.multiply(v3)).subtract(zu2.multiply(u)).multiply(b.z).add(u.multiply(v3)).mod(this.curve.p)
+  // z3 = v^3 * z1 * z2
+  var z3 = v3.multiply(this.z).multiply(b.z).mod(this.curve.p)
 
-    // -this - num = -(this + num)
-    } else if (this.negative !== 0) {
-      this.negative = 0;
-      this.iadd(num);
-      this.negative = 1;
-      return this._normSign();
-    }
+  return new Point(this.curve, x3, y3, z3)
+}
 
-    // At this point both numbers are positive
-    var cmp = this.cmp(num);
+Point.prototype.twice = function () {
+  if (this.curve.isInfinity(this)) return this
+  if (this.y.signum() === 0) return this.curve.infinity
 
-    // Optimization - zeroify
-    if (cmp === 0) {
-      this.negative = 0;
-      this.length = 1;
-      this.words[0] = 0;
-      return this;
-    }
+  var x1 = this.x
+  var y1 = this.y
 
-    // a > b
-    var a, b;
-    if (cmp > 0) {
-      a = this;
-      b = num;
-    } else {
-      a = num;
-      b = this;
-    }
+  var y1z1 = y1.multiply(this.z).mod(this.curve.p)
+  var y1sqz1 = y1z1.multiply(y1).mod(this.curve.p)
+  var a = this.curve.a
 
-    var carry = 0;
-    for (var i = 0; i < b.length; i++) {
-      r = (a.words[i] | 0) - (b.words[i] | 0) + carry;
-      carry = r >> 26;
-      this.words[i] = r & 0x3ffffff;
-    }
-    for (; carry !== 0 && i < a.length; i++) {
-      r = (a.words[i] | 0) + carry;
-      carry = r >> 26;
-      this.words[i] = r & 0x3ffffff;
+  // w = 3 * x1^2 + a * z1^2
+  var w = x1.square().multiply(THREE)
+
+  if (a.signum() !== 0) {
+    w = w.add(this.z.square().multiply(a))
+  }
+
+  w = w.mod(this.curve.p)
+  // x3 = 2 * y1 * z1 * (w^2 - 8 * x1 * y1^2 * z1)
+  var x3 = w.square().subtract(x1.shiftLeft(3).multiply(y1sqz1)).shiftLeft(1).multiply(y1z1).mod(this.curve.p)
+  // y3 = 4 * y1^2 * z1 * (3 * w * x1 - 2 * y1^2 * z1) - w^3
+  var y3 = w.multiply(THREE).multiply(x1).subtract(y1sqz1.shiftLeft(1)).shiftLeft(2).multiply(y1sqz1).subtract(w.pow(3)).mod(this.curve.p)
+  // z3 = 8 * (y1 * z1)^3
+  var z3 = y1z1.pow(3).shiftLeft(3).mod(this.curve.p)
+
+  return new Point(this.curve, x3, y3, z3)
+}
+
+// Simple NAF (Non-Adjacent Form) multiplication algorithm
+// TODO: modularize the multiplication algorithm
+Point.prototype.multiply = function (k) {
+  if (this.curve.isInfinity(this)) return this
+  if (k.signum() === 0) return this.curve.infinity
+
+  var e = k
+  var h = e.multiply(THREE)
+
+  var neg = this.negate()
+  var R = this
+
+  for (var i = h.bitLength() - 2; i > 0; --i) {
+    var hBit = h.testBit(i)
+    var eBit = e.testBit(i)
+
+    R = R.twice()
+
+    if (hBit !== eBit) {
+      R = R.add(hBit ? this : neg)
     }
+  }
 
-    // Copy rest of the words
-    if (carry === 0 && i < a.length && a !== this) {
-      for (; i < a.length; i++) {
-        this.words[i] = a.words[i];
+  return R
+}
+
+// Compute this*j + x*k (simultaneous multiplication)
+Point.prototype.multiplyTwo = function (j, x, k) {
+  var i = Math.max(j.bitLength(), k.bitLength()) - 1
+  var R = this.curve.infinity
+  var both = this.add(x)
+
+  while (i >= 0) {
+    var jBit = j.testBit(i)
+    var kBit = k.testBit(i)
+
+    R = R.twice()
+
+    if (jBit) {
+      if (kBit) {
+        R = R.add(both)
+      } else {
+        R = R.add(this)
       }
+    } else if (kBit) {
+      R = R.add(x)
     }
+    --i
+  }
 
-    this.length = Math.max(this.length, i);
+  return R
+}
 
-    if (a !== this) {
-      this.negative = 1;
-    }
+Point.prototype.getEncoded = function (compressed) {
+  if (compressed == null) compressed = this.compressed
+  if (this.curve.isInfinity(this)) return Buffer.alloc(1, 0) // Infinity point encoded is simply '00'
 
-    return this.strip();
-  };
+  var x = this.affineX
+  var y = this.affineY
+  var byteLength = this.curve.pLength
+  var buffer
 
-  // Subtract `num` from `this`
-  BN.prototype.sub = function sub (num) {
-    return this.clone().isub(num);
-  };
+  // 0x02/0x03 | X
+  if (compressed) {
+    buffer = Buffer.allocUnsafe(1 + byteLength)
+    buffer.writeUInt8(y.isEven() ? 0x02 : 0x03, 0)
 
-  function smallMulTo (self, num, out) {
-    out.negative = num.negative ^ self.negative;
-    var len = (self.length + num.length) | 0;
-    out.length = len;
-    len = (len - 1) | 0;
+  // 0x04 | X | Y
+  } else {
+    buffer = Buffer.allocUnsafe(1 + byteLength + byteLength)
+    buffer.writeUInt8(0x04, 0)
 
-    // Peel one iteration (compiler can't do it, because of code complexity)
-    var a = self.words[0] | 0;
-    var b = num.words[0] | 0;
-    var r = a * b;
+    y.toBuffer(byteLength).copy(buffer, 1 + byteLength)
+  }
 
-    var lo = r & 0x3ffffff;
-    var carry = (r / 0x4000000) | 0;
-    out.words[0] = lo;
+  x.toBuffer(byteLength).copy(buffer, 1)
 
-    for (var k = 1; k < len; k++) {
-      // Sum all words with the same `i + j = k` and accumulate `ncarry`,
-      // note that ncarry could be >= 0x3ffffff
-      var ncarry = carry >>> 26;
-      var rword = carry & 0x3ffffff;
-      var maxJ = Math.min(k, num.length - 1);
-      for (var j = Math.max(0, k - self.length + 1); j <= maxJ; j++) {
-        var i = (k - j) | 0;
-        a = self.words[i] | 0;
-        b = num.words[j] | 0;
-        r = a * b + rword;
-        ncarry += (r / 0x4000000) | 0;
-        rword = r & 0x3ffffff;
-      }
-      out.words[k] = rword | 0;
-      carry = ncarry | 0;
-    }
-    if (carry !== 0) {
-      out.words[k] = carry | 0;
-    } else {
-      out.length--;
+  return buffer
+}
+
+Point.decodeFrom = function (curve, buffer) {
+  var type = buffer.readUInt8(0)
+  var compressed = (type !== 4)
+
+  var byteLength = Math.floor((curve.p.bitLength() + 7) / 8)
+  var x = BigInteger.fromBuffer(buffer.slice(1, 1 + byteLength))
+
+  var Q
+  if (compressed) {
+    assert.equal(buffer.length, byteLength + 1, 'Invalid sequence length')
+    assert(type === 0x02 || type === 0x03, 'Invalid sequence tag')
+
+    var isOdd = (type === 0x03)
+    Q = curve.pointFromX(isOdd, x)
+  } else {
+    assert.equal(buffer.length, 1 + byteLength + byteLength, 'Invalid sequence length')
+
+    var y = BigInteger.fromBuffer(buffer.slice(1 + byteLength))
+    Q = Point.fromAffine(curve, x, y)
+  }
+
+  Q.compressed = compressed
+  return Q
+}
+
+Point.prototype.toString = function () {
+  if (this.curve.isInfinity(this)) return '(INFINITY)'
+
+  return '(' + this.affineX.toString() + ',' + this.affineY.toString() + ')'
+}
+
+module.exports = Point
+
+},{"assert":1,"bigi":39,"safe-buffer":101}],95:[function(require,module,exports){
+(function (Buffer){
+'use strict'
+var Transform = require('stream').Transform
+var inherits = require('inherits')
+
+function HashBase (blockSize) {
+  Transform.call(this)
+
+  this._block = new Buffer(blockSize)
+  this._blockSize = blockSize
+  this._blockOffset = 0
+  this._length = [0, 0, 0, 0]
+
+  this._finalized = false
+}
+
+inherits(HashBase, Transform)
+
+HashBase.prototype._transform = function (chunk, encoding, callback) {
+  var error = null
+  try {
+    if (encoding !== 'buffer') chunk = new Buffer(chunk, encoding)
+    this.update(chunk)
+  } catch (err) {
+    error = err
+  }
+
+  callback(error)
+}
+
+HashBase.prototype._flush = function (callback) {
+  var error = null
+  try {
+    this.push(this._digest())
+  } catch (err) {
+    error = err
+  }
+
+  callback(error)
+}
+
+HashBase.prototype.update = function (data, encoding) {
+  if (!Buffer.isBuffer(data) && typeof data !== 'string') throw new TypeError('Data must be a string or a buffer')
+  if (this._finalized) throw new Error('Digest already called')
+  if (!Buffer.isBuffer(data)) data = new Buffer(data, encoding || 'binary')
+
+  // consume data
+  var block = this._block
+  var offset = 0
+  while (this._blockOffset + data.length - offset >= this._blockSize) {
+    for (var i = this._blockOffset; i < this._blockSize;) block[i++] = data[offset++]
+    this._update()
+    this._blockOffset = 0
+  }
+  while (offset < data.length) block[this._blockOffset++] = data[offset++]
+
+  // update length
+  for (var j = 0, carry = data.length * 8; carry > 0; ++j) {
+    this._length[j] += carry
+    carry = (this._length[j] / 0x0100000000) | 0
+    if (carry > 0) this._length[j] -= 0x0100000000 * carry
+  }
+
+  return this
+}
+
+HashBase.prototype._update = function (data) {
+  throw new Error('_update is not implemented')
+}
+
+HashBase.prototype.digest = function (encoding) {
+  if (this._finalized) throw new Error('Digest already called')
+  this._finalized = true
+
+  var digest = this._digest()
+  if (encoding !== undefined) digest = digest.toString(encoding)
+  return digest
+}
+
+HashBase.prototype._digest = function () {
+  throw new Error('_digest is not implemented')
+}
+
+module.exports = HashBase
+
+}).call(this,require("buffer").Buffer)
+},{"buffer":5,"inherits":96,"stream":28}],96:[function(require,module,exports){
+arguments[4][9][0].apply(exports,arguments)
+},{"dup":9}],97:[function(require,module,exports){
+(function (Buffer){
+// constant-space merkle root calculation algorithm
+module.exports = function fastRoot (values, digestFn) {
+  if (!Array.isArray(values)) throw TypeError('Expected values Array')
+  if (typeof digestFn !== 'function') throw TypeError('Expected digest Function')
+
+  var length = values.length
+  var results = values.concat()
+
+  while (length > 1) {
+    var j = 0
+
+    for (var i = 0; i < length; i += 2, ++j) {
+      var left = results[i]
+      var right = i + 1 === length ? left : results[i + 1]
+      var data = Buffer.concat([left, right])
+
+      results[j] = digestFn(data)
     }
 
-    return out.strip();
+    length = j
   }
 
-  // TODO(indutny): it may be reasonable to omit it for users who don't need
-  // to work with 256-bit numbers, otherwise it gives 20% improvement for 256-bit
-  // multiplication (like elliptic secp256k1).
-  var comb10MulTo = function comb10MulTo (self, num, out) {
-    var a = self.words;
-    var b = num.words;
-    var o = out.words;
-    var c = 0;
-    var lo;
-    var mid;
-    var hi;
-    var a0 = a[0] | 0;
-    var al0 = a0 & 0x1fff;
-    var ah0 = a0 >>> 13;
-    var a1 = a[1] | 0;
-    var al1 = a1 & 0x1fff;
-    var ah1 = a1 >>> 13;
-    var a2 = a[2] | 0;
-    var al2 = a2 & 0x1fff;
-    var ah2 = a2 >>> 13;
-    var a3 = a[3] | 0;
-    var al3 = a3 & 0x1fff;
-    var ah3 = a3 >>> 13;
-    var a4 = a[4] | 0;
-    var al4 = a4 & 0x1fff;
-    var ah4 = a4 >>> 13;
-    var a5 = a[5] | 0;
-    var al5 = a5 & 0x1fff;
-    var ah5 = a5 >>> 13;
-    var a6 = a[6] | 0;
-    var al6 = a6 & 0x1fff;
-    var ah6 = a6 >>> 13;
-    var a7 = a[7] | 0;
-    var al7 = a7 & 0x1fff;
-    var ah7 = a7 >>> 13;
-    var a8 = a[8] | 0;
-    var al8 = a8 & 0x1fff;
-    var ah8 = a8 >>> 13;
-    var a9 = a[9] | 0;
-    var al9 = a9 & 0x1fff;
-    var ah9 = a9 >>> 13;
-    var b0 = b[0] | 0;
-    var bl0 = b0 & 0x1fff;
-    var bh0 = b0 >>> 13;
-    var b1 = b[1] | 0;
-    var bl1 = b1 & 0x1fff;
-    var bh1 = b1 >>> 13;
-    var b2 = b[2] | 0;
-    var bl2 = b2 & 0x1fff;
-    var bh2 = b2 >>> 13;
-    var b3 = b[3] | 0;
-    var bl3 = b3 & 0x1fff;
-    var bh3 = b3 >>> 13;
-    var b4 = b[4] | 0;
-    var bl4 = b4 & 0x1fff;
-    var bh4 = b4 >>> 13;
-    var b5 = b[5] | 0;
-    var bl5 = b5 & 0x1fff;
-    var bh5 = b5 >>> 13;
-    var b6 = b[6] | 0;
-    var bl6 = b6 & 0x1fff;
-    var bh6 = b6 >>> 13;
-    var b7 = b[7] | 0;
-    var bl7 = b7 & 0x1fff;
-    var bh7 = b7 >>> 13;
-    var b8 = b[8] | 0;
-    var bl8 = b8 & 0x1fff;
-    var bh8 = b8 >>> 13;
-    var b9 = b[9] | 0;
-    var bl9 = b9 & 0x1fff;
-    var bh9 = b9 >>> 13;
+  return results[0]
+}
 
-    out.negative = self.negative ^ num.negative;
-    out.length = 19;
-    /* k = 0 */
-    lo = Math.imul(al0, bl0);
-    mid = Math.imul(al0, bh0);
-    mid = (mid + Math.imul(ah0, bl0)) | 0;
-    hi = Math.imul(ah0, bh0);
-    var w0 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
-    c = (((hi + (mid >>> 13)) | 0) + (w0 >>> 26)) | 0;
-    w0 &= 0x3ffffff;
-    /* k = 1 */
-    lo = Math.imul(al1, bl0);
-    mid = Math.imul(al1, bh0);
-    mid = (mid + Math.imul(ah1, bl0)) | 0;
-    hi = Math.imul(ah1, bh0);
-    lo = (lo + Math.imul(al0, bl1)) | 0;
-    mid = (mid + Math.imul(al0, bh1)) | 0;
-    mid = (mid + Math.imul(ah0, bl1)) | 0;
-    hi = (hi + Math.imul(ah0, bh1)) | 0;
-    var w1 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
-    c = (((hi + (mid >>> 13)) | 0) + (w1 >>> 26)) | 0;
-    w1 &= 0x3ffffff;
-    /* k = 2 */
-    lo = Math.imul(al2, bl0);
-    mid = Math.imul(al2, bh0);
-    mid = (mid + Math.imul(ah2, bl0)) | 0;
-    hi = Math.imul(ah2, bh0);
-    lo = (lo + Math.imul(al1, bl1)) | 0;
-    mid = (mid + Math.imul(al1, bh1)) | 0;
-    mid = (mid + Math.imul(ah1, bl1)) | 0;
-    hi = (hi + Math.imul(ah1, bh1)) | 0;
-    lo = (lo + Math.imul(al0, bl2)) | 0;
-    mid = (mid + Math.imul(al0, bh2)) | 0;
-    mid = (mid + Math.imul(ah0, bl2)) | 0;
-    hi = (hi + Math.imul(ah0, bh2)) | 0;
-    var w2 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
-    c = (((hi + (mid >>> 13)) | 0) + (w2 >>> 26)) | 0;
-    w2 &= 0x3ffffff;
-    /* k = 3 */
-    lo = Math.imul(al3, bl0);
-    mid = Math.imul(al3, bh0);
-    mid = (mid + Math.imul(ah3, bl0)) | 0;
-    hi = Math.imul(ah3, bh0);
-    lo = (lo + Math.imul(al2, bl1)) | 0;
-    mid = (mid + Math.imul(al2, bh1)) | 0;
-    mid = (mid + Math.imul(ah2, bl1)) | 0;
-    hi = (hi + Math.imul(ah2, bh1)) | 0;
-    lo = (lo + Math.imul(al1, bl2)) | 0;
-    mid = (mid + Math.imul(al1, bh2)) | 0;
-    mid = (mid + Math.imul(ah1, bl2)) | 0;
-    hi = (hi + Math.imul(ah1, bh2)) | 0;
-    lo = (lo + Math.imul(al0, bl3)) | 0;
-    mid = (mid + Math.imul(al0, bh3)) | 0;
-    mid = (mid + Math.imul(ah0, bl3)) | 0;
-    hi = (hi + Math.imul(ah0, bh3)) | 0;
-    var w3 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
-    c = (((hi + (mid >>> 13)) | 0) + (w3 >>> 26)) | 0;
-    w3 &= 0x3ffffff;
-    /* k = 4 */
-    lo = Math.imul(al4, bl0);
-    mid = Math.imul(al4, bh0);
-    mid = (mid + Math.imul(ah4, bl0)) | 0;
-    hi = Math.imul(ah4, bh0);
-    lo = (lo + Math.imul(al3, bl1)) | 0;
-    mid = (mid + Math.imul(al3, bh1)) | 0;
-    mid = (mid + Math.imul(ah3, bl1)) | 0;
-    hi = (hi + Math.imul(ah3, bh1)) | 0;
-    lo = (lo + Math.imul(al2, bl2)) | 0;
-    mid = (mid + Math.imul(al2, bh2)) | 0;
-    mid = (mid + Math.imul(ah2, bl2)) | 0;
-    hi = (hi + Math.imul(ah2, bh2)) | 0;
-    lo = (lo + Math.imul(al1, bl3)) | 0;
-    mid = (mid + Math.imul(al1, bh3)) | 0;
-    mid = (mid + Math.imul(ah1, bl3)) | 0;
-    hi = (hi + Math.imul(ah1, bh3)) | 0;
-    lo = (lo + Math.imul(al0, bl4)) | 0;
-    mid = (mid + Math.imul(al0, bh4)) | 0;
-    mid = (mid + Math.imul(ah0, bl4)) | 0;
-    hi = (hi + Math.imul(ah0, bh4)) | 0;
-    var w4 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
-    c = (((hi + (mid >>> 13)) | 0) + (w4 >>> 26)) | 0;
-    w4 &= 0x3ffffff;
-    /* k = 5 */
-    lo = Math.imul(al5, bl0);
-    mid = Math.imul(al5, bh0);
-    mid = (mid + Math.imul(ah5, bl0)) | 0;
-    hi = Math.imul(ah5, bh0);
-    lo = (lo + Math.imul(al4, bl1)) | 0;
-    mid = (mid + Math.imul(al4, bh1)) | 0;
-    mid = (mid + Math.imul(ah4, bl1)) | 0;
-    hi = (hi + Math.imul(ah4, bh1)) | 0;
-    lo = (lo + Math.imul(al3, bl2)) | 0;
-    mid = (mid + Math.imul(al3, bh2)) | 0;
-    mid = (mid + Math.imul(ah3, bl2)) | 0;
-    hi = (hi + Math.imul(ah3, bh2)) | 0;
-    lo = (lo + Math.imul(al2, bl3)) | 0;
-    mid = (mid + Math.imul(al2, bh3)) | 0;
-    mid = (mid + Math.imul(ah2, bl3)) | 0;
-    hi = (hi + Math.imul(ah2, bh3)) | 0;
-    lo = (lo + Math.imul(al1, bl4)) | 0;
-    mid = (mid + Math.imul(al1, bh4)) | 0;
-    mid = (mid + Math.imul(ah1, bl4)) | 0;
-    hi = (hi + Math.imul(ah1, bh4)) | 0;
-    lo = (lo + Math.imul(al0, bl5)) | 0;
-    mid = (mid + Math.imul(al0, bh5)) | 0;
-    mid = (mid + Math.imul(ah0, bl5)) | 0;
-    hi = (hi + Math.imul(ah0, bh5)) | 0;
-    var w5 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
-    c = (((hi + (mid >>> 13)) | 0) + (w5 >>> 26)) | 0;
-    w5 &= 0x3ffffff;
-    /* k = 6 */
-    lo = Math.imul(al6, bl0);
-    mid = Math.imul(al6, bh0);
-    mid = (mid + Math.imul(ah6, bl0)) | 0;
-    hi = Math.imul(ah6, bh0);
-    lo = (lo + Math.imul(al5, bl1)) | 0;
-    mid = (mid + Math.imul(al5, bh1)) | 0;
-    mid = (mid + Math.imul(ah5, bl1)) | 0;
-    hi = (hi + Math.imul(ah5, bh1)) | 0;
-    lo = (lo + Math.imul(al4, bl2)) | 0;
-    mid = (mid + Math.imul(al4, bh2)) | 0;
-    mid = (mid + Math.imul(ah4, bl2)) | 0;
-    hi = (hi + Math.imul(ah4, bh2)) | 0;
-    lo = (lo + Math.imul(al3, bl3)) | 0;
-    mid = (mid + Math.imul(al3, bh3)) | 0;
-    mid = (mid + Math.imul(ah3, bl3)) | 0;
-    hi = (hi + Math.imul(ah3, bh3)) | 0;
-    lo = (lo + Math.imul(al2, bl4)) | 0;
-    mid = (mid + Math.imul(al2, bh4)) | 0;
-    mid = (mid + Math.imul(ah2, bl4)) | 0;
-    hi = (hi + Math.imul(ah2, bh4)) | 0;
-    lo = (lo + Math.imul(al1, bl5)) | 0;
-    mid = (mid + Math.imul(al1, bh5)) | 0;
-    mid = (mid + Math.imul(ah1, bl5)) | 0;
-    hi = (hi + Math.imul(ah1, bh5)) | 0;
-    lo = (lo + Math.imul(al0, bl6)) | 0;
-    mid = (mid + Math.imul(al0, bh6)) | 0;
-    mid = (mid + Math.imul(ah0, bl6)) | 0;
-    hi = (hi + Math.imul(ah0, bh6)) | 0;
-    var w6 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
-    c = (((hi + (mid >>> 13)) | 0) + (w6 >>> 26)) | 0;
-    w6 &= 0x3ffffff;
-    /* k = 7 */
-    lo = Math.imul(al7, bl0);
-    mid = Math.imul(al7, bh0);
-    mid = (mid + Math.imul(ah7, bl0)) | 0;
-    hi = Math.imul(ah7, bh0);
-    lo = (lo + Math.imul(al6, bl1)) | 0;
-    mid = (mid + Math.imul(al6, bh1)) | 0;
-    mid = (mid + Math.imul(ah6, bl1)) | 0;
-    hi = (hi + Math.imul(ah6, bh1)) | 0;
-    lo = (lo + Math.imul(al5, bl2)) | 0;
-    mid = (mid + Math.imul(al5, bh2)) | 0;
-    mid = (mid + Math.imul(ah5, bl2)) | 0;
-    hi = (hi + Math.imul(ah5, bh2)) | 0;
-    lo = (lo + Math.imul(al4, bl3)) | 0;
-    mid = (mid + Math.imul(al4, bh3)) | 0;
-    mid = (mid + Math.imul(ah4, bl3)) | 0;
-    hi = (hi + Math.imul(ah4, bh3)) | 0;
-    lo = (lo + Math.imul(al3, bl4)) | 0;
-    mid = (mid + Math.imul(al3, bh4)) | 0;
-    mid = (mid + Math.imul(ah3, bl4)) | 0;
-    hi = (hi + Math.imul(ah3, bh4)) | 0;
-    lo = (lo + Math.imul(al2, bl5)) | 0;
-    mid = (mid + Math.imul(al2, bh5)) | 0;
-    mid = (mid + Math.imul(ah2, bl5)) | 0;
-    hi = (hi + Math.imul(ah2, bh5)) | 0;
-    lo = (lo + Math.imul(al1, bl6)) | 0;
-    mid = (mid + Math.imul(al1, bh6)) | 0;
-    mid = (mid + Math.imul(ah1, bl6)) | 0;
-    hi = (hi + Math.imul(ah1, bh6)) | 0;
-    lo = (lo + Math.imul(al0, bl7)) | 0;
-    mid = (mid + Math.imul(al0, bh7)) | 0;
-    mid = (mid + Math.imul(ah0, bl7)) | 0;
-    hi = (hi + Math.imul(ah0, bh7)) | 0;
-    var w7 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
-    c = (((hi + (mid >>> 13)) | 0) + (w7 >>> 26)) | 0;
-    w7 &= 0x3ffffff;
-    /* k = 8 */
-    lo = Math.imul(al8, bl0);
-    mid = Math.imul(al8, bh0);
-    mid = (mid + Math.imul(ah8, bl0)) | 0;
-    hi = Math.imul(ah8, bh0);
-    lo = (lo + Math.imul(al7, bl1)) | 0;
-    mid = (mid + Math.imul(al7, bh1)) | 0;
-    mid = (mid + Math.imul(ah7, bl1)) | 0;
-    hi = (hi + Math.imul(ah7, bh1)) | 0;
-    lo = (lo + Math.imul(al6, bl2)) | 0;
-    mid = (mid + Math.imul(al6, bh2)) | 0;
-    mid = (mid + Math.imul(ah6, bl2)) | 0;
-    hi = (hi + Math.imul(ah6, bh2)) | 0;
-    lo = (lo + Math.imul(al5, bl3)) | 0;
-    mid = (mid + Math.imul(al5, bh3)) | 0;
-    mid = (mid + Math.imul(ah5, bl3)) | 0;
-    hi = (hi + Math.imul(ah5, bh3)) | 0;
-    lo = (lo + Math.imul(al4, bl4)) | 0;
-    mid = (mid + Math.imul(al4, bh4)) | 0;
-    mid = (mid + Math.imul(ah4, bl4)) | 0;
-    hi = (hi + Math.imul(ah4, bh4)) | 0;
-    lo = (lo + Math.imul(al3, bl5)) | 0;
-    mid = (mid + Math.imul(al3, bh5)) | 0;
-    mid = (mid + Math.imul(ah3, bl5)) | 0;
-    hi = (hi + Math.imul(ah3, bh5)) | 0;
-    lo = (lo + Math.imul(al2, bl6)) | 0;
-    mid = (mid + Math.imul(al2, bh6)) | 0;
-    mid = (mid + Math.imul(ah2, bl6)) | 0;
-    hi = (hi + Math.imul(ah2, bh6)) | 0;
-    lo = (lo + Math.imul(al1, bl7)) | 0;
-    mid = (mid + Math.imul(al1, bh7)) | 0;
-    mid = (mid + Math.imul(ah1, bl7)) | 0;
-    hi = (hi + Math.imul(ah1, bh7)) | 0;
-    lo = (lo + Math.imul(al0, bl8)) | 0;
-    mid = (mid + Math.imul(al0, bh8)) | 0;
-    mid = (mid + Math.imul(ah0, bl8)) | 0;
-    hi = (hi + Math.imul(ah0, bh8)) | 0;
-    var w8 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
-    c = (((hi + (mid >>> 13)) | 0) + (w8 >>> 26)) | 0;
-    w8 &= 0x3ffffff;
-    /* k = 9 */
-    lo = Math.imul(al9, bl0);
-    mid = Math.imul(al9, bh0);
-    mid = (mid + Math.imul(ah9, bl0)) | 0;
-    hi = Math.imul(ah9, bh0);
-    lo = (lo + Math.imul(al8, bl1)) | 0;
-    mid = (mid + Math.imul(al8, bh1)) | 0;
-    mid = (mid + Math.imul(ah8, bl1)) | 0;
-    hi = (hi + Math.imul(ah8, bh1)) | 0;
-    lo = (lo + Math.imul(al7, bl2)) | 0;
-    mid = (mid + Math.imul(al7, bh2)) | 0;
-    mid = (mid + Math.imul(ah7, bl2)) | 0;
-    hi = (hi + Math.imul(ah7, bh2)) | 0;
-    lo = (lo + Math.imul(al6, bl3)) | 0;
-    mid = (mid + Math.imul(al6, bh3)) | 0;
-    mid = (mid + Math.imul(ah6, bl3)) | 0;
-    hi = (hi + Math.imul(ah6, bh3)) | 0;
-    lo = (lo + Math.imul(al5, bl4)) | 0;
-    mid = (mid + Math.imul(al5, bh4)) | 0;
-    mid = (mid + Math.imul(ah5, bl4)) | 0;
-    hi = (hi + Math.imul(ah5, bh4)) | 0;
-    lo = (lo + Math.imul(al4, bl5)) | 0;
-    mid = (mid + Math.imul(al4, bh5)) | 0;
-    mid = (mid + Math.imul(ah4, bl5)) | 0;
-    hi = (hi + Math.imul(ah4, bh5)) | 0;
-    lo = (lo + Math.imul(al3, bl6)) | 0;
-    mid = (mid + Math.imul(al3, bh6)) | 0;
-    mid = (mid + Math.imul(ah3, bl6)) | 0;
-    hi = (hi + Math.imul(ah3, bh6)) | 0;
-    lo = (lo + Math.imul(al2, bl7)) | 0;
-    mid = (mid + Math.imul(al2, bh7)) | 0;
-    mid = (mid + Math.imul(ah2, bl7)) | 0;
-    hi = (hi + Math.imul(ah2, bh7)) | 0;
-    lo = (lo + Math.imul(al1, bl8)) | 0;
-    mid = (mid + Math.imul(al1, bh8)) | 0;
-    mid = (mid + Math.imul(ah1, bl8)) | 0;
-    hi = (hi + Math.imul(ah1, bh8)) | 0;
-    lo = (lo + Math.imul(al0, bl9)) | 0;
-    mid = (mid + Math.imul(al0, bh9)) | 0;
-    mid = (mid + Math.imul(ah0, bl9)) | 0;
-    hi = (hi + Math.imul(ah0, bh9)) | 0;
-    var w9 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
-    c = (((hi + (mid >>> 13)) | 0) + (w9 >>> 26)) | 0;
-    w9 &= 0x3ffffff;
-    /* k = 10 */
-    lo = Math.imul(al9, bl1);
-    mid = Math.imul(al9, bh1);
-    mid = (mid + Math.imul(ah9, bl1)) | 0;
-    hi = Math.imul(ah9, bh1);
-    lo = (lo + Math.imul(al8, bl2)) | 0;
-    mid = (mid + Math.imul(al8, bh2)) | 0;
-    mid = (mid + Math.imul(ah8, bl2)) | 0;
-    hi = (hi + Math.imul(ah8, bh2)) | 0;
-    lo = (lo + Math.imul(al7, bl3)) | 0;
-    mid = (mid + Math.imul(al7, bh3)) | 0;
-    mid = (mid + Math.imul(ah7, bl3)) | 0;
-    hi = (hi + Math.imul(ah7, bh3)) | 0;
-    lo = (lo + Math.imul(al6, bl4)) | 0;
-    mid = (mid + Math.imul(al6, bh4)) | 0;
-    mid = (mid + Math.imul(ah6, bl4)) | 0;
-    hi = (hi + Math.imul(ah6, bh4)) | 0;
-    lo = (lo + Math.imul(al5, bl5)) | 0;
-    mid = (mid + Math.imul(al5, bh5)) | 0;
-    mid = (mid + Math.imul(ah5, bl5)) | 0;
-    hi = (hi + Math.imul(ah5, bh5)) | 0;
-    lo = (lo + Math.imul(al4, bl6)) | 0;
-    mid = (mid + Math.imul(al4, bh6)) | 0;
-    mid = (mid + Math.imul(ah4, bl6)) | 0;
-    hi = (hi + Math.imul(ah4, bh6)) | 0;
-    lo = (lo + Math.imul(al3, bl7)) | 0;
-    mid = (mid + Math.imul(al3, bh7)) | 0;
-    mid = (mid + Math.imul(ah3, bl7)) | 0;
-    hi = (hi + Math.imul(ah3, bh7)) | 0;
-    lo = (lo + Math.imul(al2, bl8)) | 0;
-    mid = (mid + Math.imul(al2, bh8)) | 0;
-    mid = (mid + Math.imul(ah2, bl8)) | 0;
-    hi = (hi + Math.imul(ah2, bh8)) | 0;
-    lo = (lo + Math.imul(al1, bl9)) | 0;
-    mid = (mid + Math.imul(al1, bh9)) | 0;
-    mid = (mid + Math.imul(ah1, bl9)) | 0;
-    hi = (hi + Math.imul(ah1, bh9)) | 0;
-    var w10 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
-    c = (((hi + (mid >>> 13)) | 0) + (w10 >>> 26)) | 0;
-    w10 &= 0x3ffffff;
-    /* k = 11 */
-    lo = Math.imul(al9, bl2);
-    mid = Math.imul(al9, bh2);
-    mid = (mid + Math.imul(ah9, bl2)) | 0;
-    hi = Math.imul(ah9, bh2);
-    lo = (lo + Math.imul(al8, bl3)) | 0;
-    mid = (mid + Math.imul(al8, bh3)) | 0;
-    mid = (mid + Math.imul(ah8, bl3)) | 0;
-    hi = (hi + Math.imul(ah8, bh3)) | 0;
-    lo = (lo + Math.imul(al7, bl4)) | 0;
-    mid = (mid + Math.imul(al7, bh4)) | 0;
-    mid = (mid + Math.imul(ah7, bl4)) | 0;
-    hi = (hi + Math.imul(ah7, bh4)) | 0;
-    lo = (lo + Math.imul(al6, bl5)) | 0;
-    mid = (mid + Math.imul(al6, bh5)) | 0;
-    mid = (mid + Math.imul(ah6, bl5)) | 0;
-    hi = (hi + Math.imul(ah6, bh5)) | 0;
-    lo = (lo + Math.imul(al5, bl6)) | 0;
-    mid = (mid + Math.imul(al5, bh6)) | 0;
-    mid = (mid + Math.imul(ah5, bl6)) | 0;
-    hi = (hi + Math.imul(ah5, bh6)) | 0;
-    lo = (lo + Math.imul(al4, bl7)) | 0;
-    mid = (mid + Math.imul(al4, bh7)) | 0;
-    mid = (mid + Math.imul(ah4, bl7)) | 0;
-    hi = (hi + Math.imul(ah4, bh7)) | 0;
-    lo = (lo + Math.imul(al3, bl8)) | 0;
-    mid = (mid + Math.imul(al3, bh8)) | 0;
-    mid = (mid + Math.imul(ah3, bl8)) | 0;
-    hi = (hi + Math.imul(ah3, bh8)) | 0;
-    lo = (lo + Math.imul(al2, bl9)) | 0;
-    mid = (mid + Math.imul(al2, bh9)) | 0;
-    mid = (mid + Math.imul(ah2, bl9)) | 0;
-    hi = (hi + Math.imul(ah2, bh9)) | 0;
-    var w11 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
-    c = (((hi + (mid >>> 13)) | 0) + (w11 >>> 26)) | 0;
-    w11 &= 0x3ffffff;
-    /* k = 12 */
-    lo = Math.imul(al9, bl3);
-    mid = Math.imul(al9, bh3);
-    mid = (mid + Math.imul(ah9, bl3)) | 0;
-    hi = Math.imul(ah9, bh3);
-    lo = (lo + Math.imul(al8, bl4)) | 0;
-    mid = (mid + Math.imul(al8, bh4)) | 0;
-    mid = (mid + Math.imul(ah8, bl4)) | 0;
-    hi = (hi + Math.imul(ah8, bh4)) | 0;
-    lo = (lo + Math.imul(al7, bl5)) | 0;
-    mid = (mid + Math.imul(al7, bh5)) | 0;
-    mid = (mid + Math.imul(ah7, bl5)) | 0;
-    hi = (hi + Math.imul(ah7, bh5)) | 0;
-    lo = (lo + Math.imul(al6, bl6)) | 0;
-    mid = (mid + Math.imul(al6, bh6)) | 0;
-    mid = (mid + Math.imul(ah6, bl6)) | 0;
-    hi = (hi + Math.imul(ah6, bh6)) | 0;
-    lo = (lo + Math.imul(al5, bl7)) | 0;
-    mid = (mid + Math.imul(al5, bh7)) | 0;
-    mid = (mid + Math.imul(ah5, bl7)) | 0;
-    hi = (hi + Math.imul(ah5, bh7)) | 0;
-    lo = (lo + Math.imul(al4, bl8)) | 0;
-    mid = (mid + Math.imul(al4, bh8)) | 0;
-    mid = (mid + Math.imul(ah4, bl8)) | 0;
-    hi = (hi + Math.imul(ah4, bh8)) | 0;
-    lo = (lo + Math.imul(al3, bl9)) | 0;
-    mid = (mid + Math.imul(al3, bh9)) | 0;
-    mid = (mid + Math.imul(ah3, bl9)) | 0;
-    hi = (hi + Math.imul(ah3, bh9)) | 0;
-    var w12 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
-    c = (((hi + (mid >>> 13)) | 0) + (w12 >>> 26)) | 0;
-    w12 &= 0x3ffffff;
-    /* k = 13 */
-    lo = Math.imul(al9, bl4);
-    mid = Math.imul(al9, bh4);
-    mid = (mid + Math.imul(ah9, bl4)) | 0;
-    hi = Math.imul(ah9, bh4);
-    lo = (lo + Math.imul(al8, bl5)) | 0;
-    mid = (mid + Math.imul(al8, bh5)) | 0;
-    mid = (mid + Math.imul(ah8, bl5)) | 0;
-    hi = (hi + Math.imul(ah8, bh5)) | 0;
-    lo = (lo + Math.imul(al7, bl6)) | 0;
-    mid = (mid + Math.imul(al7, bh6)) | 0;
-    mid = (mid + Math.imul(ah7, bl6)) | 0;
-    hi = (hi + Math.imul(ah7, bh6)) | 0;
-    lo = (lo + Math.imul(al6, bl7)) | 0;
-    mid = (mid + Math.imul(al6, bh7)) | 0;
-    mid = (mid + Math.imul(ah6, bl7)) | 0;
-    hi = (hi + Math.imul(ah6, bh7)) | 0;
-    lo = (lo + Math.imul(al5, bl8)) | 0;
-    mid = (mid + Math.imul(al5, bh8)) | 0;
-    mid = (mid + Math.imul(ah5, bl8)) | 0;
-    hi = (hi + Math.imul(ah5, bh8)) | 0;
-    lo = (lo + Math.imul(al4, bl9)) | 0;
-    mid = (mid + Math.imul(al4, bh9)) | 0;
-    mid = (mid + Math.imul(ah4, bl9)) | 0;
-    hi = (hi + Math.imul(ah4, bh9)) | 0;
-    var w13 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
-    c = (((hi + (mid >>> 13)) | 0) + (w13 >>> 26)) | 0;
-    w13 &= 0x3ffffff;
-    /* k = 14 */
-    lo = Math.imul(al9, bl5);
-    mid = Math.imul(al9, bh5);
-    mid = (mid + Math.imul(ah9, bl5)) | 0;
-    hi = Math.imul(ah9, bh5);
-    lo = (lo + Math.imul(al8, bl6)) | 0;
-    mid = (mid + Math.imul(al8, bh6)) | 0;
-    mid = (mid + Math.imul(ah8, bl6)) | 0;
-    hi = (hi + Math.imul(ah8, bh6)) | 0;
-    lo = (lo + Math.imul(al7, bl7)) | 0;
-    mid = (mid + Math.imul(al7, bh7)) | 0;
-    mid = (mid + Math.imul(ah7, bl7)) | 0;
-    hi = (hi + Math.imul(ah7, bh7)) | 0;
-    lo = (lo + Math.imul(al6, bl8)) | 0;
-    mid = (mid + Math.imul(al6, bh8)) | 0;
-    mid = (mid + Math.imul(ah6, bl8)) | 0;
-    hi = (hi + Math.imul(ah6, bh8)) | 0;
-    lo = (lo + Math.imul(al5, bl9)) | 0;
-    mid = (mid + Math.imul(al5, bh9)) | 0;
-    mid = (mid + Math.imul(ah5, bl9)) | 0;
-    hi = (hi + Math.imul(ah5, bh9)) | 0;
-    var w14 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
-    c = (((hi + (mid >>> 13)) | 0) + (w14 >>> 26)) | 0;
-    w14 &= 0x3ffffff;
-    /* k = 15 */
-    lo = Math.imul(al9, bl6);
-    mid = Math.imul(al9, bh6);
-    mid = (mid + Math.imul(ah9, bl6)) | 0;
-    hi = Math.imul(ah9, bh6);
-    lo = (lo + Math.imul(al8, bl7)) | 0;
-    mid = (mid + Math.imul(al8, bh7)) | 0;
-    mid = (mid + Math.imul(ah8, bl7)) | 0;
-    hi = (hi + Math.imul(ah8, bh7)) | 0;
-    lo = (lo + Math.imul(al7, bl8)) | 0;
-    mid = (mid + Math.imul(al7, bh8)) | 0;
-    mid = (mid + Math.imul(ah7, bl8)) | 0;
-    hi = (hi + Math.imul(ah7, bh8)) | 0;
-    lo = (lo + Math.imul(al6, bl9)) | 0;
-    mid = (mid + Math.imul(al6, bh9)) | 0;
-    mid = (mid + Math.imul(ah6, bl9)) | 0;
-    hi = (hi + Math.imul(ah6, bh9)) | 0;
-    var w15 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
-    c = (((hi + (mid >>> 13)) | 0) + (w15 >>> 26)) | 0;
-    w15 &= 0x3ffffff;
-    /* k = 16 */
-    lo = Math.imul(al9, bl7);
-    mid = Math.imul(al9, bh7);
-    mid = (mid + Math.imul(ah9, bl7)) | 0;
-    hi = Math.imul(ah9, bh7);
-    lo = (lo + Math.imul(al8, bl8)) | 0;
-    mid = (mid + Math.imul(al8, bh8)) | 0;
-    mid = (mid + Math.imul(ah8, bl8)) | 0;
-    hi = (hi + Math.imul(ah8, bh8)) | 0;
-    lo = (lo + Math.imul(al7, bl9)) | 0;
-    mid = (mid + Math.imul(al7, bh9)) | 0;
-    mid = (mid + Math.imul(ah7, bl9)) | 0;
-    hi = (hi + Math.imul(ah7, bh9)) | 0;
-    var w16 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
-    c = (((hi + (mid >>> 13)) | 0) + (w16 >>> 26)) | 0;
-    w16 &= 0x3ffffff;
-    /* k = 17 */
-    lo = Math.imul(al9, bl8);
-    mid = Math.imul(al9, bh8);
-    mid = (mid + Math.imul(ah9, bl8)) | 0;
-    hi = Math.imul(ah9, bh8);
-    lo = (lo + Math.imul(al8, bl9)) | 0;
-    mid = (mid + Math.imul(al8, bh9)) | 0;
-    mid = (mid + Math.imul(ah8, bl9)) | 0;
-    hi = (hi + Math.imul(ah8, bh9)) | 0;
-    var w17 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
-    c = (((hi + (mid >>> 13)) | 0) + (w17 >>> 26)) | 0;
-    w17 &= 0x3ffffff;
-    /* k = 18 */
-    lo = Math.imul(al9, bl9);
-    mid = Math.imul(al9, bh9);
-    mid = (mid + Math.imul(ah9, bl9)) | 0;
-    hi = Math.imul(ah9, bh9);
-    var w18 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
-    c = (((hi + (mid >>> 13)) | 0) + (w18 >>> 26)) | 0;
-    w18 &= 0x3ffffff;
-    o[0] = w0;
-    o[1] = w1;
-    o[2] = w2;
-    o[3] = w3;
-    o[4] = w4;
-    o[5] = w5;
-    o[6] = w6;
-    o[7] = w7;
-    o[8] = w8;
-    o[9] = w9;
-    o[10] = w10;
-    o[11] = w11;
-    o[12] = w12;
-    o[13] = w13;
-    o[14] = w14;
-    o[15] = w15;
-    o[16] = w16;
-    o[17] = w17;
-    o[18] = w18;
-    if (c !== 0) {
-      o[19] = c;
-      out.length++;
-    }
-    return out;
-  };
+}).call(this,require("buffer").Buffer)
+},{"buffer":5}],98:[function(require,module,exports){
+var OPS = require('bitcoin-ops')
 
-  // Polyfill comb
-  if (!Math.imul) {
-    comb10MulTo = smallMulTo;
-  }
+function encodingLength (i) {
+  return i < OPS.OP_PUSHDATA1 ? 1
+  : i <= 0xff ? 2
+  : i <= 0xffff ? 3
+  : 5
+}
 
-  function bigMulTo (self, num, out) {
-    out.negative = num.negative ^ self.negative;
-    out.length = self.length + num.length;
+function encode (buffer, number, offset) {
+  var size = encodingLength(number)
 
-    var carry = 0;
-    var hncarry = 0;
-    for (var k = 0; k < out.length - 1; k++) {
-      // Sum all words with the same `i + j = k` and accumulate `ncarry`,
-      // note that ncarry could be >= 0x3ffffff
-      var ncarry = hncarry;
-      hncarry = 0;
-      var rword = carry & 0x3ffffff;
-      var maxJ = Math.min(k, num.length - 1);
-      for (var j = Math.max(0, k - self.length + 1); j <= maxJ; j++) {
-        var i = k - j;
-        var a = self.words[i] | 0;
-        var b = num.words[j] | 0;
-        var r = a * b;
+  // ~6 bit
+  if (size === 1) {
+    buffer.writeUInt8(number, offset)
 
-        var lo = r & 0x3ffffff;
-        ncarry = (ncarry + ((r / 0x4000000) | 0)) | 0;
-        lo = (lo + rword) | 0;
-        rword = lo & 0x3ffffff;
-        ncarry = (ncarry + (lo >>> 26)) | 0;
+  // 8 bit
+  } else if (size === 2) {
+    buffer.writeUInt8(OPS.OP_PUSHDATA1, offset)
+    buffer.writeUInt8(number, offset + 1)
 
-        hncarry += ncarry >>> 26;
-        ncarry &= 0x3ffffff;
-      }
-      out.words[k] = rword;
-      carry = ncarry;
-      ncarry = hncarry;
-    }
-    if (carry !== 0) {
-      out.words[k] = carry;
-    } else {
-      out.length--;
-    }
+  // 16 bit
+  } else if (size === 3) {
+    buffer.writeUInt8(OPS.OP_PUSHDATA2, offset)
+    buffer.writeUInt16LE(number, offset + 1)
 
-    return out.strip();
+  // 32 bit
+  } else {
+    buffer.writeUInt8(OPS.OP_PUSHDATA4, offset)
+    buffer.writeUInt32LE(number, offset + 1)
   }
 
-  function jumboMulTo (self, num, out) {
-    var fftm = new FFTM();
-    return fftm.mulp(self, num, out);
-  }
+  return size
+}
 
-  BN.prototype.mulTo = function mulTo (num, out) {
-    var res;
-    var len = this.length + num.length;
-    if (this.length === 10 && num.length === 10) {
-      res = comb10MulTo(this, num, out);
-    } else if (len < 63) {
-      res = smallMulTo(this, num, out);
-    } else if (len < 1024) {
-      res = bigMulTo(this, num, out);
-    } else {
-      res = jumboMulTo(this, num, out);
-    }
-
-    return res;
-  };
+function decode (buffer, offset) {
+  var opcode = buffer.readUInt8(offset)
+  var number, size
 
-  // Cooley-Tukey algorithm for FFT
-  // slightly revisited to rely on looping instead of recursion
+  // ~6 bit
+  if (opcode < OPS.OP_PUSHDATA1) {
+    number = opcode
+    size = 1
 
-  function FFTM (x, y) {
-    this.x = x;
-    this.y = y;
-  }
+  // 8 bit
+  } else if (opcode === OPS.OP_PUSHDATA1) {
+    if (offset + 2 > buffer.length) return null
+    number = buffer.readUInt8(offset + 1)
+    size = 2
 
-  FFTM.prototype.makeRBT = function makeRBT (N) {
-    var t = new Array(N);
-    var l = BN.prototype._countBits(N) - 1;
-    for (var i = 0; i < N; i++) {
-      t[i] = this.revBin(i, l, N);
-    }
+  // 16 bit
+  } else if (opcode === OPS.OP_PUSHDATA2) {
+    if (offset + 3 > buffer.length) return null
+    number = buffer.readUInt16LE(offset + 1)
+    size = 3
 
-    return t;
-  };
+  // 32 bit
+  } else {
+    if (offset + 5 > buffer.length) return null
+    if (opcode !== OPS.OP_PUSHDATA4) throw new Error('Unexpected opcode')
 
-  // Returns binary-reversed representation of `x`
-  FFTM.prototype.revBin = function revBin (x, l, N) {
-    if (x === 0 || x === N - 1) return x;
+    number = buffer.readUInt32LE(offset + 1)
+    size = 5
+  }
 
-    var rb = 0;
-    for (var i = 0; i < l; i++) {
-      rb |= (x & 1) << (l - i - 1);
-      x >>= 1;
-    }
+  return {
+    opcode: opcode,
+    number: number,
+    size: size
+  }
+}
 
-    return rb;
-  };
+module.exports = {
+  encodingLength: encodingLength,
+  encode: encode,
+  decode: decode
+}
 
-  // Performs "tweedling" phase, therefore 'emulating'
-  // behaviour of the recursive algorithm
-  FFTM.prototype.permute = function permute (rbt, rws, iws, rtws, itws, N) {
-    for (var i = 0; i < N; i++) {
-      rtws[i] = rws[rbt[i]];
-      itws[i] = iws[rbt[i]];
-    }
-  };
+},{"bitcoin-ops":42}],99:[function(require,module,exports){
+(function (process,global){
+'use strict'
 
-  FFTM.prototype.transform = function transform (rws, iws, rtws, itws, N, rbt) {
-    this.permute(rbt, rws, iws, rtws, itws, N);
+function oldBrowser () {
+  throw new Error('Secure random number generation is not supported by this browser.\nUse Chrome, Firefox or Internet Explorer 11')
+}
 
-    for (var s = 1; s < N; s <<= 1) {
-      var l = s << 1;
+var Buffer = require('safe-buffer').Buffer
+var crypto = global.crypto || global.msCrypto
 
-      var rtwdf = Math.cos(2 * Math.PI / l);
-      var itwdf = Math.sin(2 * Math.PI / l);
+if (crypto && crypto.getRandomValues) {
+  module.exports = randomBytes
+} else {
+  module.exports = oldBrowser
+}
 
-      for (var p = 0; p < N; p += l) {
-        var rtwdf_ = rtwdf;
-        var itwdf_ = itwdf;
+function randomBytes (size, cb) {
+  // phantomjs needs to throw
+  if (size > 65536) throw new Error('requested too many random bytes')
+  // in case browserify  isn't using the Uint8Array version
+  var rawBytes = new global.Uint8Array(size)
 
-        for (var j = 0; j < s; j++) {
-          var re = rtws[p + j];
-          var ie = itws[p + j];
+  // This will not work in older browsers.
+  // See https://developer.mozilla.org/en-US/docs/Web/API/window.crypto.getRandomValues
+  if (size > 0) {  // getRandomValues fails on IE if size == 0
+    crypto.getRandomValues(rawBytes)
+  }
 
-          var ro = rtws[p + j + s];
-          var io = itws[p + j + s];
+  // XXX: phantomjs doesn't like a buffer being passed here
+  var bytes = Buffer.from(rawBytes.buffer)
 
-          var rx = rtwdf_ * ro - itwdf_ * io;
+  if (typeof cb === 'function') {
+    return process.nextTick(function () {
+      cb(null, bytes)
+    })
+  }
 
-          io = rtwdf_ * io + itwdf_ * ro;
-          ro = rx;
+  return bytes
+}
 
-          rtws[p + j] = re + ro;
-          itws[p + j] = ie + io;
+}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"_process":13,"safe-buffer":101}],100:[function(require,module,exports){
+(function (Buffer){
+'use strict'
+var inherits = require('inherits')
+var HashBase = require('hash-base')
 
-          rtws[p + j + s] = re - ro;
-          itws[p + j + s] = ie - io;
+function RIPEMD160 () {
+  HashBase.call(this, 64)
 
-          /* jshint maxdepth : false */
-          if (j !== l) {
-            rx = rtwdf * rtwdf_ - itwdf * itwdf_;
+  // state
+  this._a = 0x67452301
+  this._b = 0xefcdab89
+  this._c = 0x98badcfe
+  this._d = 0x10325476
+  this._e = 0xc3d2e1f0
+}
 
-            itwdf_ = rtwdf * itwdf_ + itwdf * rtwdf_;
-            rtwdf_ = rx;
-          }
-        }
-      }
-    }
-  };
+inherits(RIPEMD160, HashBase)
 
-  FFTM.prototype.guessLen13b = function guessLen13b (n, m) {
-    var N = Math.max(m, n) | 1;
-    var odd = N & 1;
-    var i = 0;
-    for (N = N / 2 | 0; N; N = N >>> 1) {
-      i++;
-    }
+RIPEMD160.prototype._update = function () {
+  var m = new Array(16)
+  for (var i = 0; i < 16; ++i) m[i] = this._block.readInt32LE(i * 4)
 
-    return 1 << i + 1 + odd;
-  };
+  var al = this._a
+  var bl = this._b
+  var cl = this._c
+  var dl = this._d
+  var el = this._e
 
-  FFTM.prototype.conjugate = function conjugate (rws, iws, N) {
-    if (N <= 1) return;
+  // Mj = 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
+  // K = 0x00000000
+  // Sj = 11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8
+  al = fn1(al, bl, cl, dl, el, m[0], 0x00000000, 11); cl = rotl(cl, 10)
+  el = fn1(el, al, bl, cl, dl, m[1], 0x00000000, 14); bl = rotl(bl, 10)
+  dl = fn1(dl, el, al, bl, cl, m[2], 0x00000000, 15); al = rotl(al, 10)
+  cl = fn1(cl, dl, el, al, bl, m[3], 0x00000000, 12); el = rotl(el, 10)
+  bl = fn1(bl, cl, dl, el, al, m[4], 0x00000000, 5); dl = rotl(dl, 10)
+  al = fn1(al, bl, cl, dl, el, m[5], 0x00000000, 8); cl = rotl(cl, 10)
+  el = fn1(el, al, bl, cl, dl, m[6], 0x00000000, 7); bl = rotl(bl, 10)
+  dl = fn1(dl, el, al, bl, cl, m[7], 0x00000000, 9); al = rotl(al, 10)
+  cl = fn1(cl, dl, el, al, bl, m[8], 0x00000000, 11); el = rotl(el, 10)
+  bl = fn1(bl, cl, dl, el, al, m[9], 0x00000000, 13); dl = rotl(dl, 10)
+  al = fn1(al, bl, cl, dl, el, m[10], 0x00000000, 14); cl = rotl(cl, 10)
+  el = fn1(el, al, bl, cl, dl, m[11], 0x00000000, 15); bl = rotl(bl, 10)
+  dl = fn1(dl, el, al, bl, cl, m[12], 0x00000000, 6); al = rotl(al, 10)
+  cl = fn1(cl, dl, el, al, bl, m[13], 0x00000000, 7); el = rotl(el, 10)
+  bl = fn1(bl, cl, dl, el, al, m[14], 0x00000000, 9); dl = rotl(dl, 10)
+  al = fn1(al, bl, cl, dl, el, m[15], 0x00000000, 8); cl = rotl(cl, 10)
 
-    for (var i = 0; i < N / 2; i++) {
-      var t = rws[i];
+  // Mj = 7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8
+  // K = 0x5a827999
+  // Sj = 7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12
+  el = fn2(el, al, bl, cl, dl, m[7], 0x5a827999, 7); bl = rotl(bl, 10)
+  dl = fn2(dl, el, al, bl, cl, m[4], 0x5a827999, 6); al = rotl(al, 10)
+  cl = fn2(cl, dl, el, al, bl, m[13], 0x5a827999, 8); el = rotl(el, 10)
+  bl = fn2(bl, cl, dl, el, al, m[1], 0x5a827999, 13); dl = rotl(dl, 10)
+  al = fn2(al, bl, cl, dl, el, m[10], 0x5a827999, 11); cl = rotl(cl, 10)
+  el = fn2(el, al, bl, cl, dl, m[6], 0x5a827999, 9); bl = rotl(bl, 10)
+  dl = fn2(dl, el, al, bl, cl, m[15], 0x5a827999, 7); al = rotl(al, 10)
+  cl = fn2(cl, dl, el, al, bl, m[3], 0x5a827999, 15); el = rotl(el, 10)
+  bl = fn2(bl, cl, dl, el, al, m[12], 0x5a827999, 7); dl = rotl(dl, 10)
+  al = fn2(al, bl, cl, dl, el, m[0], 0x5a827999, 12); cl = rotl(cl, 10)
+  el = fn2(el, al, bl, cl, dl, m[9], 0x5a827999, 15); bl = rotl(bl, 10)
+  dl = fn2(dl, el, al, bl, cl, m[5], 0x5a827999, 9); al = rotl(al, 10)
+  cl = fn2(cl, dl, el, al, bl, m[2], 0x5a827999, 11); el = rotl(el, 10)
+  bl = fn2(bl, cl, dl, el, al, m[14], 0x5a827999, 7); dl = rotl(dl, 10)
+  al = fn2(al, bl, cl, dl, el, m[11], 0x5a827999, 13); cl = rotl(cl, 10)
+  el = fn2(el, al, bl, cl, dl, m[8], 0x5a827999, 12); bl = rotl(bl, 10)
 
-      rws[i] = rws[N - i - 1];
-      rws[N - i - 1] = t;
+  // Mj = 3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12
+  // K = 0x6ed9eba1
+  // Sj = 11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5
+  dl = fn3(dl, el, al, bl, cl, m[3], 0x6ed9eba1, 11); al = rotl(al, 10)
+  cl = fn3(cl, dl, el, al, bl, m[10], 0x6ed9eba1, 13); el = rotl(el, 10)
+  bl = fn3(bl, cl, dl, el, al, m[14], 0x6ed9eba1, 6); dl = rotl(dl, 10)
+  al = fn3(al, bl, cl, dl, el, m[4], 0x6ed9eba1, 7); cl = rotl(cl, 10)
+  el = fn3(el, al, bl, cl, dl, m[9], 0x6ed9eba1, 14); bl = rotl(bl, 10)
+  dl = fn3(dl, el, al, bl, cl, m[15], 0x6ed9eba1, 9); al = rotl(al, 10)
+  cl = fn3(cl, dl, el, al, bl, m[8], 0x6ed9eba1, 13); el = rotl(el, 10)
+  bl = fn3(bl, cl, dl, el, al, m[1], 0x6ed9eba1, 15); dl = rotl(dl, 10)
+  al = fn3(al, bl, cl, dl, el, m[2], 0x6ed9eba1, 14); cl = rotl(cl, 10)
+  el = fn3(el, al, bl, cl, dl, m[7], 0x6ed9eba1, 8); bl = rotl(bl, 10)
+  dl = fn3(dl, el, al, bl, cl, m[0], 0x6ed9eba1, 13); al = rotl(al, 10)
+  cl = fn3(cl, dl, el, al, bl, m[6], 0x6ed9eba1, 6); el = rotl(el, 10)
+  bl = fn3(bl, cl, dl, el, al, m[13], 0x6ed9eba1, 5); dl = rotl(dl, 10)
+  al = fn3(al, bl, cl, dl, el, m[11], 0x6ed9eba1, 12); cl = rotl(cl, 10)
+  el = fn3(el, al, bl, cl, dl, m[5], 0x6ed9eba1, 7); bl = rotl(bl, 10)
+  dl = fn3(dl, el, al, bl, cl, m[12], 0x6ed9eba1, 5); al = rotl(al, 10)
 
-      t = iws[i];
+  // Mj = 1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2
+  // K = 0x8f1bbcdc
+  // Sj = 11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12
+  cl = fn4(cl, dl, el, al, bl, m[1], 0x8f1bbcdc, 11); el = rotl(el, 10)
+  bl = fn4(bl, cl, dl, el, al, m[9], 0x8f1bbcdc, 12); dl = rotl(dl, 10)
+  al = fn4(al, bl, cl, dl, el, m[11], 0x8f1bbcdc, 14); cl = rotl(cl, 10)
+  el = fn4(el, al, bl, cl, dl, m[10], 0x8f1bbcdc, 15); bl = rotl(bl, 10)
+  dl = fn4(dl, el, al, bl, cl, m[0], 0x8f1bbcdc, 14); al = rotl(al, 10)
+  cl = fn4(cl, dl, el, al, bl, m[8], 0x8f1bbcdc, 15); el = rotl(el, 10)
+  bl = fn4(bl, cl, dl, el, al, m[12], 0x8f1bbcdc, 9); dl = rotl(dl, 10)
+  al = fn4(al, bl, cl, dl, el, m[4], 0x8f1bbcdc, 8); cl = rotl(cl, 10)
+  el = fn4(el, al, bl, cl, dl, m[13], 0x8f1bbcdc, 9); bl = rotl(bl, 10)
+  dl = fn4(dl, el, al, bl, cl, m[3], 0x8f1bbcdc, 14); al = rotl(al, 10)
+  cl = fn4(cl, dl, el, al, bl, m[7], 0x8f1bbcdc, 5); el = rotl(el, 10)
+  bl = fn4(bl, cl, dl, el, al, m[15], 0x8f1bbcdc, 6); dl = rotl(dl, 10)
+  al = fn4(al, bl, cl, dl, el, m[14], 0x8f1bbcdc, 8); cl = rotl(cl, 10)
+  el = fn4(el, al, bl, cl, dl, m[5], 0x8f1bbcdc, 6); bl = rotl(bl, 10)
+  dl = fn4(dl, el, al, bl, cl, m[6], 0x8f1bbcdc, 5); al = rotl(al, 10)
+  cl = fn4(cl, dl, el, al, bl, m[2], 0x8f1bbcdc, 12); el = rotl(el, 10)
 
-      iws[i] = -iws[N - i - 1];
-      iws[N - i - 1] = -t;
-    }
-  };
+  // Mj = 4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13
+  // K = 0xa953fd4e
+  // Sj = 9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6
+  bl = fn5(bl, cl, dl, el, al, m[4], 0xa953fd4e, 9); dl = rotl(dl, 10)
+  al = fn5(al, bl, cl, dl, el, m[0], 0xa953fd4e, 15); cl = rotl(cl, 10)
+  el = fn5(el, al, bl, cl, dl, m[5], 0xa953fd4e, 5); bl = rotl(bl, 10)
+  dl = fn5(dl, el, al, bl, cl, m[9], 0xa953fd4e, 11); al = rotl(al, 10)
+  cl = fn5(cl, dl, el, al, bl, m[7], 0xa953fd4e, 6); el = rotl(el, 10)
+  bl = fn5(bl, cl, dl, el, al, m[12], 0xa953fd4e, 8); dl = rotl(dl, 10)
+  al = fn5(al, bl, cl, dl, el, m[2], 0xa953fd4e, 13); cl = rotl(cl, 10)
+  el = fn5(el, al, bl, cl, dl, m[10], 0xa953fd4e, 12); bl = rotl(bl, 10)
+  dl = fn5(dl, el, al, bl, cl, m[14], 0xa953fd4e, 5); al = rotl(al, 10)
+  cl = fn5(cl, dl, el, al, bl, m[1], 0xa953fd4e, 12); el = rotl(el, 10)
+  bl = fn5(bl, cl, dl, el, al, m[3], 0xa953fd4e, 13); dl = rotl(dl, 10)
+  al = fn5(al, bl, cl, dl, el, m[8], 0xa953fd4e, 14); cl = rotl(cl, 10)
+  el = fn5(el, al, bl, cl, dl, m[11], 0xa953fd4e, 11); bl = rotl(bl, 10)
+  dl = fn5(dl, el, al, bl, cl, m[6], 0xa953fd4e, 8); al = rotl(al, 10)
+  cl = fn5(cl, dl, el, al, bl, m[15], 0xa953fd4e, 5); el = rotl(el, 10)
+  bl = fn5(bl, cl, dl, el, al, m[13], 0xa953fd4e, 6); dl = rotl(dl, 10)
 
-  FFTM.prototype.normalize13b = function normalize13b (ws, N) {
-    var carry = 0;
-    for (var i = 0; i < N / 2; i++) {
-      var w = Math.round(ws[2 * i + 1] / N) * 0x2000 +
-        Math.round(ws[2 * i] / N) +
-        carry;
+  var ar = this._a
+  var br = this._b
+  var cr = this._c
+  var dr = this._d
+  var er = this._e
 
-      ws[i] = w & 0x3ffffff;
+  // M'j = 5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12
+  // K' = 0x50a28be6
+  // S'j = 8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6
+  ar = fn5(ar, br, cr, dr, er, m[5], 0x50a28be6, 8); cr = rotl(cr, 10)
+  er = fn5(er, ar, br, cr, dr, m[14], 0x50a28be6, 9); br = rotl(br, 10)
+  dr = fn5(dr, er, ar, br, cr, m[7], 0x50a28be6, 9); ar = rotl(ar, 10)
+  cr = fn5(cr, dr, er, ar, br, m[0], 0x50a28be6, 11); er = rotl(er, 10)
+  br = fn5(br, cr, dr, er, ar, m[9], 0x50a28be6, 13); dr = rotl(dr, 10)
+  ar = fn5(ar, br, cr, dr, er, m[2], 0x50a28be6, 15); cr = rotl(cr, 10)
+  er = fn5(er, ar, br, cr, dr, m[11], 0x50a28be6, 15); br = rotl(br, 10)
+  dr = fn5(dr, er, ar, br, cr, m[4], 0x50a28be6, 5); ar = rotl(ar, 10)
+  cr = fn5(cr, dr, er, ar, br, m[13], 0x50a28be6, 7); er = rotl(er, 10)
+  br = fn5(br, cr, dr, er, ar, m[6], 0x50a28be6, 7); dr = rotl(dr, 10)
+  ar = fn5(ar, br, cr, dr, er, m[15], 0x50a28be6, 8); cr = rotl(cr, 10)
+  er = fn5(er, ar, br, cr, dr, m[8], 0x50a28be6, 11); br = rotl(br, 10)
+  dr = fn5(dr, er, ar, br, cr, m[1], 0x50a28be6, 14); ar = rotl(ar, 10)
+  cr = fn5(cr, dr, er, ar, br, m[10], 0x50a28be6, 14); er = rotl(er, 10)
+  br = fn5(br, cr, dr, er, ar, m[3], 0x50a28be6, 12); dr = rotl(dr, 10)
+  ar = fn5(ar, br, cr, dr, er, m[12], 0x50a28be6, 6); cr = rotl(cr, 10)
 
-      if (w < 0x4000000) {
-        carry = 0;
-      } else {
-        carry = w / 0x4000000 | 0;
-      }
-    }
+  // M'j = 6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2
+  // K' = 0x5c4dd124
+  // S'j = 9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11
+  er = fn4(er, ar, br, cr, dr, m[6], 0x5c4dd124, 9); br = rotl(br, 10)
+  dr = fn4(dr, er, ar, br, cr, m[11], 0x5c4dd124, 13); ar = rotl(ar, 10)
+  cr = fn4(cr, dr, er, ar, br, m[3], 0x5c4dd124, 15); er = rotl(er, 10)
+  br = fn4(br, cr, dr, er, ar, m[7], 0x5c4dd124, 7); dr = rotl(dr, 10)
+  ar = fn4(ar, br, cr, dr, er, m[0], 0x5c4dd124, 12); cr = rotl(cr, 10)
+  er = fn4(er, ar, br, cr, dr, m[13], 0x5c4dd124, 8); br = rotl(br, 10)
+  dr = fn4(dr, er, ar, br, cr, m[5], 0x5c4dd124, 9); ar = rotl(ar, 10)
+  cr = fn4(cr, dr, er, ar, br, m[10], 0x5c4dd124, 11); er = rotl(er, 10)
+  br = fn4(br, cr, dr, er, ar, m[14], 0x5c4dd124, 7); dr = rotl(dr, 10)
+  ar = fn4(ar, br, cr, dr, er, m[15], 0x5c4dd124, 7); cr = rotl(cr, 10)
+  er = fn4(er, ar, br, cr, dr, m[8], 0x5c4dd124, 12); br = rotl(br, 10)
+  dr = fn4(dr, er, ar, br, cr, m[12], 0x5c4dd124, 7); ar = rotl(ar, 10)
+  cr = fn4(cr, dr, er, ar, br, m[4], 0x5c4dd124, 6); er = rotl(er, 10)
+  br = fn4(br, cr, dr, er, ar, m[9], 0x5c4dd124, 15); dr = rotl(dr, 10)
+  ar = fn4(ar, br, cr, dr, er, m[1], 0x5c4dd124, 13); cr = rotl(cr, 10)
+  er = fn4(er, ar, br, cr, dr, m[2], 0x5c4dd124, 11); br = rotl(br, 10)
 
-    return ws;
-  };
+  // M'j = 15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13
+  // K' = 0x6d703ef3
+  // S'j = 9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5
+  dr = fn3(dr, er, ar, br, cr, m[15], 0x6d703ef3, 9); ar = rotl(ar, 10)
+  cr = fn3(cr, dr, er, ar, br, m[5], 0x6d703ef3, 7); er = rotl(er, 10)
+  br = fn3(br, cr, dr, er, ar, m[1], 0x6d703ef3, 15); dr = rotl(dr, 10)
+  ar = fn3(ar, br, cr, dr, er, m[3], 0x6d703ef3, 11); cr = rotl(cr, 10)
+  er = fn3(er, ar, br, cr, dr, m[7], 0x6d703ef3, 8); br = rotl(br, 10)
+  dr = fn3(dr, er, ar, br, cr, m[14], 0x6d703ef3, 6); ar = rotl(ar, 10)
+  cr = fn3(cr, dr, er, ar, br, m[6], 0x6d703ef3, 6); er = rotl(er, 10)
+  br = fn3(br, cr, dr, er, ar, m[9], 0x6d703ef3, 14); dr = rotl(dr, 10)
+  ar = fn3(ar, br, cr, dr, er, m[11], 0x6d703ef3, 12); cr = rotl(cr, 10)
+  er = fn3(er, ar, br, cr, dr, m[8], 0x6d703ef3, 13); br = rotl(br, 10)
+  dr = fn3(dr, er, ar, br, cr, m[12], 0x6d703ef3, 5); ar = rotl(ar, 10)
+  cr = fn3(cr, dr, er, ar, br, m[2], 0x6d703ef3, 14); er = rotl(er, 10)
+  br = fn3(br, cr, dr, er, ar, m[10], 0x6d703ef3, 13); dr = rotl(dr, 10)
+  ar = fn3(ar, br, cr, dr, er, m[0], 0x6d703ef3, 13); cr = rotl(cr, 10)
+  er = fn3(er, ar, br, cr, dr, m[4], 0x6d703ef3, 7); br = rotl(br, 10)
+  dr = fn3(dr, er, ar, br, cr, m[13], 0x6d703ef3, 5); ar = rotl(ar, 10)
 
-  FFTM.prototype.convert13b = function convert13b (ws, len, rws, N) {
-    var carry = 0;
-    for (var i = 0; i < len; i++) {
-      carry = carry + (ws[i] | 0);
+  // M'j = 8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14
+  // K' = 0x7a6d76e9
+  // S'j = 15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8
+  cr = fn2(cr, dr, er, ar, br, m[8], 0x7a6d76e9, 15); er = rotl(er, 10)
+  br = fn2(br, cr, dr, er, ar, m[6], 0x7a6d76e9, 5); dr = rotl(dr, 10)
+  ar = fn2(ar, br, cr, dr, er, m[4], 0x7a6d76e9, 8); cr = rotl(cr, 10)
+  er = fn2(er, ar, br, cr, dr, m[1], 0x7a6d76e9, 11); br = rotl(br, 10)
+  dr = fn2(dr, er, ar, br, cr, m[3], 0x7a6d76e9, 14); ar = rotl(ar, 10)
+  cr = fn2(cr, dr, er, ar, br, m[11], 0x7a6d76e9, 14); er = rotl(er, 10)
+  br = fn2(br, cr, dr, er, ar, m[15], 0x7a6d76e9, 6); dr = rotl(dr, 10)
+  ar = fn2(ar, br, cr, dr, er, m[0], 0x7a6d76e9, 14); cr = rotl(cr, 10)
+  er = fn2(er, ar, br, cr, dr, m[5], 0x7a6d76e9, 6); br = rotl(br, 10)
+  dr = fn2(dr, er, ar, br, cr, m[12], 0x7a6d76e9, 9); ar = rotl(ar, 10)
+  cr = fn2(cr, dr, er, ar, br, m[2], 0x7a6d76e9, 12); er = rotl(er, 10)
+  br = fn2(br, cr, dr, er, ar, m[13], 0x7a6d76e9, 9); dr = rotl(dr, 10)
+  ar = fn2(ar, br, cr, dr, er, m[9], 0x7a6d76e9, 12); cr = rotl(cr, 10)
+  er = fn2(er, ar, br, cr, dr, m[7], 0x7a6d76e9, 5); br = rotl(br, 10)
+  dr = fn2(dr, er, ar, br, cr, m[10], 0x7a6d76e9, 15); ar = rotl(ar, 10)
+  cr = fn2(cr, dr, er, ar, br, m[14], 0x7a6d76e9, 8); er = rotl(er, 10)
 
-      rws[2 * i] = carry & 0x1fff; carry = carry >>> 13;
-      rws[2 * i + 1] = carry & 0x1fff; carry = carry >>> 13;
-    }
+  // M'j = 12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11
+  // K' = 0x00000000
+  // S'j = 8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11
+  br = fn1(br, cr, dr, er, ar, m[12], 0x00000000, 8); dr = rotl(dr, 10)
+  ar = fn1(ar, br, cr, dr, er, m[15], 0x00000000, 5); cr = rotl(cr, 10)
+  er = fn1(er, ar, br, cr, dr, m[10], 0x00000000, 12); br = rotl(br, 10)
+  dr = fn1(dr, er, ar, br, cr, m[4], 0x00000000, 9); ar = rotl(ar, 10)
+  cr = fn1(cr, dr, er, ar, br, m[1], 0x00000000, 12); er = rotl(er, 10)
+  br = fn1(br, cr, dr, er, ar, m[5], 0x00000000, 5); dr = rotl(dr, 10)
+  ar = fn1(ar, br, cr, dr, er, m[8], 0x00000000, 14); cr = rotl(cr, 10)
+  er = fn1(er, ar, br, cr, dr, m[7], 0x00000000, 6); br = rotl(br, 10)
+  dr = fn1(dr, er, ar, br, cr, m[6], 0x00000000, 8); ar = rotl(ar, 10)
+  cr = fn1(cr, dr, er, ar, br, m[2], 0x00000000, 13); er = rotl(er, 10)
+  br = fn1(br, cr, dr, er, ar, m[13], 0x00000000, 6); dr = rotl(dr, 10)
+  ar = fn1(ar, br, cr, dr, er, m[14], 0x00000000, 5); cr = rotl(cr, 10)
+  er = fn1(er, ar, br, cr, dr, m[0], 0x00000000, 15); br = rotl(br, 10)
+  dr = fn1(dr, er, ar, br, cr, m[3], 0x00000000, 13); ar = rotl(ar, 10)
+  cr = fn1(cr, dr, er, ar, br, m[9], 0x00000000, 11); er = rotl(er, 10)
+  br = fn1(br, cr, dr, er, ar, m[11], 0x00000000, 11); dr = rotl(dr, 10)
 
-    // Pad with zeroes
-    for (i = 2 * len; i < N; ++i) {
-      rws[i] = 0;
-    }
+  // change state
+  var t = (this._b + cl + dr) | 0
+  this._b = (this._c + dl + er) | 0
+  this._c = (this._d + el + ar) | 0
+  this._d = (this._e + al + br) | 0
+  this._e = (this._a + bl + cr) | 0
+  this._a = t
+}
 
-    assert(carry === 0);
-    assert((carry & ~0x1fff) === 0);
-  };
+RIPEMD160.prototype._digest = function () {
+  // create padding and handle blocks
+  this._block[this._blockOffset++] = 0x80
+  if (this._blockOffset > 56) {
+    this._block.fill(0, this._blockOffset, 64)
+    this._update()
+    this._blockOffset = 0
+  }
 
-  FFTM.prototype.stub = function stub (N) {
-    var ph = new Array(N);
-    for (var i = 0; i < N; i++) {
-      ph[i] = 0;
-    }
+  this._block.fill(0, this._blockOffset, 56)
+  this._block.writeUInt32LE(this._length[0], 56)
+  this._block.writeUInt32LE(this._length[1], 60)
+  this._update()
 
-    return ph;
-  };
+  // produce result
+  var buffer = new Buffer(20)
+  buffer.writeInt32LE(this._a, 0)
+  buffer.writeInt32LE(this._b, 4)
+  buffer.writeInt32LE(this._c, 8)
+  buffer.writeInt32LE(this._d, 12)
+  buffer.writeInt32LE(this._e, 16)
+  return buffer
+}
 
-  FFTM.prototype.mulp = function mulp (x, y, out) {
-    var N = 2 * this.guessLen13b(x.length, y.length);
+function rotl (x, n) {
+  return (x << n) | (x >>> (32 - n))
+}
 
-    var rbt = this.makeRBT(N);
+function fn1 (a, b, c, d, e, m, k, s) {
+  return (rotl((a + (b ^ c ^ d) + m + k) | 0, s) + e) | 0
+}
 
-    var _ = this.stub(N);
+function fn2 (a, b, c, d, e, m, k, s) {
+  return (rotl((a + ((b & c) | ((~b) & d)) + m + k) | 0, s) + e) | 0
+}
 
-    var rws = new Array(N);
-    var rwst = new Array(N);
-    var iwst = new Array(N);
+function fn3 (a, b, c, d, e, m, k, s) {
+  return (rotl((a + ((b | (~c)) ^ d) + m + k) | 0, s) + e) | 0
+}
 
-    var nrws = new Array(N);
-    var nrwst = new Array(N);
-    var niwst = new Array(N);
+function fn4 (a, b, c, d, e, m, k, s) {
+  return (rotl((a + ((b & d) | (c & (~d))) + m + k) | 0, s) + e) | 0
+}
 
-    var rmws = out.words;
-    rmws.length = N;
+function fn5 (a, b, c, d, e, m, k, s) {
+  return (rotl((a + (b ^ (c | (~d))) + m + k) | 0, s) + e) | 0
+}
 
-    this.convert13b(x.words, x.length, rws, N);
-    this.convert13b(y.words, y.length, nrws, N);
+module.exports = RIPEMD160
 
-    this.transform(rws, _, rwst, iwst, N, rbt);
-    this.transform(nrws, _, nrwst, niwst, N, rbt);
+}).call(this,require("buffer").Buffer)
+},{"buffer":5,"hash-base":95,"inherits":96}],101:[function(require,module,exports){
+/* eslint-disable node/no-deprecated-api */
+var buffer = require('buffer')
+var Buffer = buffer.Buffer
 
-    for (var i = 0; i < N; i++) {
-      var rx = rwst[i] * nrwst[i] - iwst[i] * niwst[i];
-      iwst[i] = rwst[i] * niwst[i] + iwst[i] * nrwst[i];
-      rwst[i] = rx;
-    }
+// alternative to using Object.keys for old browsers
+function copyProps (src, dst) {
+  for (var key in src) {
+    dst[key] = src[key]
+  }
+}
+if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {
+  module.exports = buffer
+} else {
+  // Copy properties from require('buffer')
+  copyProps(buffer, exports)
+  exports.Buffer = SafeBuffer
+}
 
-    this.conjugate(rwst, iwst, N);
-    this.transform(rwst, iwst, rmws, _, N, rbt);
-    this.conjugate(rmws, _, N);
-    this.normalize13b(rmws, N);
+function SafeBuffer (arg, encodingOrOffset, length) {
+  return Buffer(arg, encodingOrOffset, length)
+}
 
-    out.negative = x.negative ^ y.negative;
-    out.length = x.length + y.length;
-    return out.strip();
-  };
+// Copy static methods from Buffer
+copyProps(Buffer, SafeBuffer)
 
-  // Multiply `this` by `num`
-  BN.prototype.mul = function mul (num) {
-    var out = new BN(null);
-    out.words = new Array(this.length + num.length);
-    return this.mulTo(num, out);
-  };
+SafeBuffer.from = function (arg, encodingOrOffset, length) {
+  if (typeof arg === 'number') {
+    throw new TypeError('Argument must not be a number')
+  }
+  return Buffer(arg, encodingOrOffset, length)
+}
 
-  // Multiply employing FFT
-  BN.prototype.mulf = function mulf (num) {
-    var out = new BN(null);
-    out.words = new Array(this.length + num.length);
-    return jumboMulTo(this, num, out);
-  };
+SafeBuffer.alloc = function (size, fill, encoding) {
+  if (typeof size !== 'number') {
+    throw new TypeError('Argument must be a number')
+  }
+  var buf = Buffer(size)
+  if (fill !== undefined) {
+    if (typeof encoding === 'string') {
+      buf.fill(fill, encoding)
+    } else {
+      buf.fill(fill)
+    }
+  } else {
+    buf.fill(0)
+  }
+  return buf
+}
 
-  // In-place Multiplication
-  BN.prototype.imul = function imul (num) {
-    return this.clone().mulTo(num, this);
-  };
+SafeBuffer.allocUnsafe = function (size) {
+  if (typeof size !== 'number') {
+    throw new TypeError('Argument must be a number')
+  }
+  return Buffer(size)
+}
 
-  BN.prototype.imuln = function imuln (num) {
-    assert(typeof num === 'number');
-    assert(num < 0x4000000);
+SafeBuffer.allocUnsafeSlow = function (size) {
+  if (typeof size !== 'number') {
+    throw new TypeError('Argument must be a number')
+  }
+  return buffer.SlowBuffer(size)
+}
 
-    // Carry
-    var carry = 0;
-    for (var i = 0; i < this.length; i++) {
-      var w = (this.words[i] | 0) * num;
-      var lo = (w & 0x3ffffff) + (carry & 0x3ffffff);
-      carry >>= 26;
-      carry += (w / 0x4000000) | 0;
-      // NOTE: lo is 27bit maximum
-      carry += lo >>> 26;
-      this.words[i] = lo & 0x3ffffff;
-    }
+},{"buffer":5}],102:[function(require,module,exports){
+var Buffer = require('safe-buffer').Buffer
 
-    if (carry !== 0) {
-      this.words[i] = carry;
-      this.length++;
-    }
+// prototype class for hash functions
+function Hash (blockSize, finalSize) {
+  this._block = Buffer.alloc(blockSize)
+  this._finalSize = finalSize
+  this._blockSize = blockSize
+  this._len = 0
+}
 
-    return this;
-  };
+Hash.prototype.update = function (data, enc) {
+  if (typeof data === 'string') {
+    enc = enc || 'utf8'
+    data = Buffer.from(data, enc)
+  }
 
-  BN.prototype.muln = function muln (num) {
-    return this.clone().imuln(num);
-  };
+  var block = this._block
+  var blockSize = this._blockSize
+  var length = data.length
+  var accum = this._len
 
-  // `this` * `this`
-  BN.prototype.sqr = function sqr () {
-    return this.mul(this);
-  };
+  for (var offset = 0; offset < length;) {
+    var assigned = accum % blockSize
+    var remainder = Math.min(length - offset, blockSize - assigned)
 
-  // `this` * `this` in-place
-  BN.prototype.isqr = function isqr () {
-    return this.imul(this.clone());
-  };
+    for (var i = 0; i < remainder; i++) {
+      block[assigned + i] = data[offset + i]
+    }
 
-  // Math.pow(`this`, `num`)
-  BN.prototype.pow = function pow (num) {
-    var w = toBitArray(num);
-    if (w.length === 0) return new BN(1);
+    accum += remainder
+    offset += remainder
 
-    // Skip leading zeroes
-    var res = this;
-    for (var i = 0; i < w.length; i++, res = res.sqr()) {
-      if (w[i] !== 0) break;
+    if ((accum % blockSize) === 0) {
+      this._update(block)
     }
+  }
 
-    if (++i < w.length) {
-      for (var q = res.sqr(); i < w.length; i++, q = q.sqr()) {
-        if (w[i] === 0) continue;
+  this._len += length
+  return this
+}
 
-        res = res.mul(q);
-      }
-    }
+Hash.prototype.digest = function (enc) {
+  var rem = this._len % this._blockSize
 
-    return res;
-  };
+  this._block[rem] = 0x80
 
-  // Shift-left in-place
-  BN.prototype.iushln = function iushln (bits) {
-    assert(typeof bits === 'number' && bits >= 0);
-    var r = bits % 26;
-    var s = (bits - r) / 26;
-    var carryMask = (0x3ffffff >>> (26 - r)) << (26 - r);
-    var i;
+  // zero (rem + 1) trailing bits, where (rem + 1) is the smallest
+  // non-negative solution to the equation (length + 1 + (rem + 1)) === finalSize mod blockSize
+  this._block.fill(0, rem + 1)
 
-    if (r !== 0) {
-      var carry = 0;
+  if (rem >= this._finalSize) {
+    this._update(this._block)
+    this._block.fill(0)
+  }
 
-      for (i = 0; i < this.length; i++) {
-        var newCarry = this.words[i] & carryMask;
-        var c = ((this.words[i] | 0) - newCarry) << r;
-        this.words[i] = c | carry;
-        carry = newCarry >>> (26 - r);
-      }
+  var bits = this._len * 8
 
-      if (carry) {
-        this.words[i] = carry;
-        this.length++;
-      }
-    }
+  // uint32
+  if (bits <= 0xffffffff) {
+    this._block.writeUInt32BE(bits, this._blockSize - 4)
 
-    if (s !== 0) {
-      for (i = this.length - 1; i >= 0; i--) {
-        this.words[i + s] = this.words[i];
-      }
+  // uint64
+  } else {
+    var lowBits = (bits & 0xffffffff) >>> 0
+    var highBits = (bits - lowBits) / 0x100000000
 
-      for (i = 0; i < s; i++) {
-        this.words[i] = 0;
-      }
+    this._block.writeUInt32BE(highBits, this._blockSize - 8)
+    this._block.writeUInt32BE(lowBits, this._blockSize - 4)
+  }
 
-      this.length += s;
-    }
+  this._update(this._block)
+  var hash = this._hash()
 
-    return this.strip();
-  };
+  return enc ? hash.toString(enc) : hash
+}
 
-  BN.prototype.ishln = function ishln (bits) {
-    // TODO(indutny): implement me
-    assert(this.negative === 0);
-    return this.iushln(bits);
-  };
+Hash.prototype._update = function () {
+  throw new Error('_update must be implemented by subclass')
+}
 
-  // Shift-right in-place
-  // NOTE: `hint` is a lowest bit before trailing zeroes
-  // NOTE: if `extended` is present - it will be filled with destroyed bits
-  BN.prototype.iushrn = function iushrn (bits, hint, extended) {
-    assert(typeof bits === 'number' && bits >= 0);
-    var h;
-    if (hint) {
-      h = (hint - (hint % 26)) / 26;
-    } else {
-      h = 0;
-    }
+module.exports = Hash
 
-    var r = bits % 26;
-    var s = Math.min((bits - r) / 26, this.length);
-    var mask = 0x3ffffff ^ ((0x3ffffff >>> r) << r);
-    var maskedWords = extended;
+},{"safe-buffer":101}],103:[function(require,module,exports){
+var exports = module.exports = function SHA (algorithm) {
+  algorithm = algorithm.toLowerCase()
 
-    h -= s;
-    h = Math.max(0, h);
+  var Algorithm = exports[algorithm]
+  if (!Algorithm) throw new Error(algorithm + ' is not supported (we accept pull requests)')
 
-    // Extended mode, copy masked part
-    if (maskedWords) {
-      for (var i = 0; i < s; i++) {
-        maskedWords.words[i] = this.words[i];
-      }
-      maskedWords.length = s;
-    }
+  return new Algorithm()
+}
 
-    if (s === 0) {
-      // No-op, we should not move anything at all
-    } else if (this.length > s) {
-      this.length -= s;
-      for (i = 0; i < this.length; i++) {
-        this.words[i] = this.words[i + s];
-      }
-    } else {
-      this.words[0] = 0;
-      this.length = 1;
-    }
+exports.sha = require('./sha')
+exports.sha1 = require('./sha1')
+exports.sha224 = require('./sha224')
+exports.sha256 = require('./sha256')
+exports.sha384 = require('./sha384')
+exports.sha512 = require('./sha512')
 
-    var carry = 0;
-    for (i = this.length - 1; i >= 0 && (carry !== 0 || i >= h); i--) {
-      var word = this.words[i] | 0;
-      this.words[i] = (carry << (26 - r)) | (word >>> r);
-      carry = word & mask;
-    }
+},{"./sha":104,"./sha1":105,"./sha224":106,"./sha256":107,"./sha384":108,"./sha512":109}],104:[function(require,module,exports){
+/*
+ * A JavaScript implementation of the Secure Hash Algorithm, SHA-0, as defined
+ * in FIPS PUB 180-1
+ * This source code is derived from sha1.js of the same repository.
+ * The difference between SHA-0 and SHA-1 is just a bitwise rotate left
+ * operation was added.
+ */
 
-    // Push carried bits as a mask
-    if (maskedWords && carry !== 0) {
-      maskedWords.words[maskedWords.length++] = carry;
-    }
+var inherits = require('inherits')
+var Hash = require('./hash')
+var Buffer = require('safe-buffer').Buffer
 
-    if (this.length === 0) {
-      this.words[0] = 0;
-      this.length = 1;
-    }
+var K = [
+  0x5a827999, 0x6ed9eba1, 0x8f1bbcdc | 0, 0xca62c1d6 | 0
+]
 
-    return this.strip();
-  };
+var W = new Array(80)
 
-  BN.prototype.ishrn = function ishrn (bits, hint, extended) {
-    // TODO(indutny): implement me
-    assert(this.negative === 0);
-    return this.iushrn(bits, hint, extended);
-  };
+function Sha () {
+  this.init()
+  this._w = W
 
-  // Shift-left
-  BN.prototype.shln = function shln (bits) {
-    return this.clone().ishln(bits);
-  };
+  Hash.call(this, 64, 56)
+}
 
-  BN.prototype.ushln = function ushln (bits) {
-    return this.clone().iushln(bits);
-  };
+inherits(Sha, Hash)
 
-  // Shift-right
-  BN.prototype.shrn = function shrn (bits) {
-    return this.clone().ishrn(bits);
-  };
+Sha.prototype.init = function () {
+  this._a = 0x67452301
+  this._b = 0xefcdab89
+  this._c = 0x98badcfe
+  this._d = 0x10325476
+  this._e = 0xc3d2e1f0
 
-  BN.prototype.ushrn = function ushrn (bits) {
-    return this.clone().iushrn(bits);
-  };
+  return this
+}
 
-  // Test if n bit is set
-  BN.prototype.testn = function testn (bit) {
-    assert(typeof bit === 'number' && bit >= 0);
-    var r = bit % 26;
-    var s = (bit - r) / 26;
-    var q = 1 << r;
+function rotl5 (num) {
+  return (num << 5) | (num >>> 27)
+}
 
-    // Fast case: bit is much higher than all existing words
-    if (this.length <= s) return false;
+function rotl30 (num) {
+  return (num << 30) | (num >>> 2)
+}
 
-    // Check bit and return
-    var w = this.words[s];
+function ft (s, b, c, d) {
+  if (s === 0) return (b & c) | ((~b) & d)
+  if (s === 2) return (b & c) | (b & d) | (c & d)
+  return b ^ c ^ d
+}
 
-    return !!(w & q);
-  };
+Sha.prototype._update = function (M) {
+  var W = this._w
 
-  // Return only lowers bits of number (in-place)
-  BN.prototype.imaskn = function imaskn (bits) {
-    assert(typeof bits === 'number' && bits >= 0);
-    var r = bits % 26;
-    var s = (bits - r) / 26;
+  var a = this._a | 0
+  var b = this._b | 0
+  var c = this._c | 0
+  var d = this._d | 0
+  var e = this._e | 0
 
-    assert(this.negative === 0, 'imaskn works only with positive numbers');
+  for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4)
+  for (; i < 80; ++i) W[i] = W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16]
 
-    if (this.length <= s) {
-      return this;
-    }
+  for (var j = 0; j < 80; ++j) {
+    var s = ~~(j / 20)
+    var t = (rotl5(a) + ft(s, b, c, d) + e + W[j] + K[s]) | 0
 
-    if (r !== 0) {
-      s++;
-    }
-    this.length = Math.min(s, this.length);
+    e = d
+    d = c
+    c = rotl30(b)
+    b = a
+    a = t
+  }
 
-    if (r !== 0) {
-      var mask = 0x3ffffff ^ ((0x3ffffff >>> r) << r);
-      this.words[this.length - 1] &= mask;
-    }
+  this._a = (a + this._a) | 0
+  this._b = (b + this._b) | 0
+  this._c = (c + this._c) | 0
+  this._d = (d + this._d) | 0
+  this._e = (e + this._e) | 0
+}
 
-    return this.strip();
-  };
+Sha.prototype._hash = function () {
+  var H = Buffer.allocUnsafe(20)
 
-  // Return only lowers bits of number
-  BN.prototype.maskn = function maskn (bits) {
-    return this.clone().imaskn(bits);
-  };
+  H.writeInt32BE(this._a | 0, 0)
+  H.writeInt32BE(this._b | 0, 4)
+  H.writeInt32BE(this._c | 0, 8)
+  H.writeInt32BE(this._d | 0, 12)
+  H.writeInt32BE(this._e | 0, 16)
 
-  // Add plain number `num` to `this`
-  BN.prototype.iaddn = function iaddn (num) {
-    assert(typeof num === 'number');
-    assert(num < 0x4000000);
-    if (num < 0) return this.isubn(-num);
+  return H
+}
 
-    // Possible sign change
-    if (this.negative !== 0) {
-      if (this.length === 1 && (this.words[0] | 0) < num) {
-        this.words[0] = num - (this.words[0] | 0);
-        this.negative = 0;
-        return this;
-      }
+module.exports = Sha
 
-      this.negative = 0;
-      this.isubn(num);
-      this.negative = 1;
-      return this;
-    }
+},{"./hash":102,"inherits":96,"safe-buffer":101}],105:[function(require,module,exports){
+/*
+ * A JavaScript implementation of the Secure Hash Algorithm, SHA-1, as defined
+ * in FIPS PUB 180-1
+ * Version 2.1a Copyright Paul Johnston 2000 - 2002.
+ * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
+ * Distributed under the BSD License
+ * See http://pajhome.org.uk/crypt/md5 for details.
+ */
 
-    // Add without checks
-    return this._iaddn(num);
-  };
+var inherits = require('inherits')
+var Hash = require('./hash')
+var Buffer = require('safe-buffer').Buffer
 
-  BN.prototype._iaddn = function _iaddn (num) {
-    this.words[0] += num;
+var K = [
+  0x5a827999, 0x6ed9eba1, 0x8f1bbcdc | 0, 0xca62c1d6 | 0
+]
 
-    // Carry
-    for (var i = 0; i < this.length && this.words[i] >= 0x4000000; i++) {
-      this.words[i] -= 0x4000000;
-      if (i === this.length - 1) {
-        this.words[i + 1] = 1;
-      } else {
-        this.words[i + 1]++;
-      }
-    }
-    this.length = Math.max(this.length, i + 1);
+var W = new Array(80)
 
-    return this;
-  };
+function Sha1 () {
+  this.init()
+  this._w = W
 
-  // Subtract plain number `num` from `this`
-  BN.prototype.isubn = function isubn (num) {
-    assert(typeof num === 'number');
-    assert(num < 0x4000000);
-    if (num < 0) return this.iaddn(-num);
+  Hash.call(this, 64, 56)
+}
 
-    if (this.negative !== 0) {
-      this.negative = 0;
-      this.iaddn(num);
-      this.negative = 1;
-      return this;
-    }
+inherits(Sha1, Hash)
 
-    this.words[0] -= num;
+Sha1.prototype.init = function () {
+  this._a = 0x67452301
+  this._b = 0xefcdab89
+  this._c = 0x98badcfe
+  this._d = 0x10325476
+  this._e = 0xc3d2e1f0
 
-    if (this.length === 1 && this.words[0] < 0) {
-      this.words[0] = -this.words[0];
-      this.negative = 1;
-    } else {
-      // Carry
-      for (var i = 0; i < this.length && this.words[i] < 0; i++) {
-        this.words[i] += 0x4000000;
-        this.words[i + 1] -= 1;
-      }
-    }
+  return this
+}
 
-    return this.strip();
-  };
+function rotl1 (num) {
+  return (num << 1) | (num >>> 31)
+}
 
-  BN.prototype.addn = function addn (num) {
-    return this.clone().iaddn(num);
-  };
+function rotl5 (num) {
+  return (num << 5) | (num >>> 27)
+}
 
-  BN.prototype.subn = function subn (num) {
-    return this.clone().isubn(num);
-  };
+function rotl30 (num) {
+  return (num << 30) | (num >>> 2)
+}
 
-  BN.prototype.iabs = function iabs () {
-    this.negative = 0;
+function ft (s, b, c, d) {
+  if (s === 0) return (b & c) | ((~b) & d)
+  if (s === 2) return (b & c) | (b & d) | (c & d)
+  return b ^ c ^ d
+}
 
-    return this;
-  };
+Sha1.prototype._update = function (M) {
+  var W = this._w
 
-  BN.prototype.abs = function abs () {
-    return this.clone().iabs();
-  };
+  var a = this._a | 0
+  var b = this._b | 0
+  var c = this._c | 0
+  var d = this._d | 0
+  var e = this._e | 0
 
-  BN.prototype._ishlnsubmul = function _ishlnsubmul (num, mul, shift) {
-    var len = num.length + shift;
-    var i;
+  for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4)
+  for (; i < 80; ++i) W[i] = rotl1(W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16])
 
-    this._expand(len);
+  for (var j = 0; j < 80; ++j) {
+    var s = ~~(j / 20)
+    var t = (rotl5(a) + ft(s, b, c, d) + e + W[j] + K[s]) | 0
 
-    var w;
-    var carry = 0;
-    for (i = 0; i < num.length; i++) {
-      w = (this.words[i + shift] | 0) + carry;
-      var right = (num.words[i] | 0) * mul;
-      w -= right & 0x3ffffff;
-      carry = (w >> 26) - ((right / 0x4000000) | 0);
-      this.words[i + shift] = w & 0x3ffffff;
-    }
-    for (; i < this.length - shift; i++) {
-      w = (this.words[i + shift] | 0) + carry;
-      carry = w >> 26;
-      this.words[i + shift] = w & 0x3ffffff;
-    }
-
-    if (carry === 0) return this.strip();
-
-    // Subtraction overflow
-    assert(carry === -1);
-    carry = 0;
-    for (i = 0; i < this.length; i++) {
-      w = -(this.words[i] | 0) + carry;
-      carry = w >> 26;
-      this.words[i] = w & 0x3ffffff;
-    }
-    this.negative = 1;
-
-    return this.strip();
-  };
-
-  BN.prototype._wordDiv = function _wordDiv (num, mode) {
-    var shift = this.length - num.length;
+    e = d
+    d = c
+    c = rotl30(b)
+    b = a
+    a = t
+  }
 
-    var a = this.clone();
-    var b = num;
+  this._a = (a + this._a) | 0
+  this._b = (b + this._b) | 0
+  this._c = (c + this._c) | 0
+  this._d = (d + this._d) | 0
+  this._e = (e + this._e) | 0
+}
 
-    // Normalize
-    var bhi = b.words[b.length - 1] | 0;
-    var bhiBits = this._countBits(bhi);
-    shift = 26 - bhiBits;
-    if (shift !== 0) {
-      b = b.ushln(shift);
-      a.iushln(shift);
-      bhi = b.words[b.length - 1] | 0;
-    }
+Sha1.prototype._hash = function () {
+  var H = Buffer.allocUnsafe(20)
 
-    // Initialize quotient
-    var m = a.length - b.length;
-    var q;
+  H.writeInt32BE(this._a | 0, 0)
+  H.writeInt32BE(this._b | 0, 4)
+  H.writeInt32BE(this._c | 0, 8)
+  H.writeInt32BE(this._d | 0, 12)
+  H.writeInt32BE(this._e | 0, 16)
 
-    if (mode !== 'mod') {
-      q = new BN(null);
-      q.length = m + 1;
-      q.words = new Array(q.length);
-      for (var i = 0; i < q.length; i++) {
-        q.words[i] = 0;
-      }
-    }
+  return H
+}
 
-    var diff = a.clone()._ishlnsubmul(b, 1, m);
-    if (diff.negative === 0) {
-      a = diff;
-      if (q) {
-        q.words[m] = 1;
-      }
-    }
+module.exports = Sha1
 
-    for (var j = m - 1; j >= 0; j--) {
-      var qj = (a.words[b.length + j] | 0) * 0x4000000 +
-        (a.words[b.length + j - 1] | 0);
+},{"./hash":102,"inherits":96,"safe-buffer":101}],106:[function(require,module,exports){
+/**
+ * A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as defined
+ * in FIPS 180-2
+ * Version 2.2-beta Copyright Angel Marin, Paul Johnston 2000 - 2009.
+ * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
+ *
+ */
 
-      // NOTE: (qj / bhi) is (0x3ffffff * 0x4000000 + 0x3ffffff) / 0x2000000 max
-      // (0x7ffffff)
-      qj = Math.min((qj / bhi) | 0, 0x3ffffff);
+var inherits = require('inherits')
+var Sha256 = require('./sha256')
+var Hash = require('./hash')
+var Buffer = require('safe-buffer').Buffer
 
-      a._ishlnsubmul(b, qj, j);
-      while (a.negative !== 0) {
-        qj--;
-        a.negative = 0;
-        a._ishlnsubmul(b, 1, j);
-        if (!a.isZero()) {
-          a.negative ^= 1;
-        }
-      }
-      if (q) {
-        q.words[j] = qj;
-      }
-    }
-    if (q) {
-      q.strip();
-    }
-    a.strip();
+var W = new Array(64)
 
-    // Denormalize
-    if (mode !== 'div' && shift !== 0) {
-      a.iushrn(shift);
-    }
+function Sha224 () {
+  this.init()
 
-    return {
-      div: q || null,
-      mod: a
-    };
-  };
+  this._w = W // new Array(64)
 
-  // NOTE: 1) `mode` can be set to `mod` to request mod only,
-  //       to `div` to request div only, or be absent to
-  //       request both div & mod
-  //       2) `positive` is true if unsigned mod is requested
-  BN.prototype.divmod = function divmod (num, mode, positive) {
-    assert(!num.isZero());
+  Hash.call(this, 64, 56)
+}
 
-    if (this.isZero()) {
-      return {
-        div: new BN(0),
-        mod: new BN(0)
-      };
-    }
+inherits(Sha224, Sha256)
 
-    var div, mod, res;
-    if (this.negative !== 0 && num.negative === 0) {
-      res = this.neg().divmod(num, mode);
+Sha224.prototype.init = function () {
+  this._a = 0xc1059ed8
+  this._b = 0x367cd507
+  this._c = 0x3070dd17
+  this._d = 0xf70e5939
+  this._e = 0xffc00b31
+  this._f = 0x68581511
+  this._g = 0x64f98fa7
+  this._h = 0xbefa4fa4
 
-      if (mode !== 'mod') {
-        div = res.div.neg();
-      }
+  return this
+}
 
-      if (mode !== 'div') {
-        mod = res.mod.neg();
-        if (positive && mod.negative !== 0) {
-          mod.iadd(num);
-        }
-      }
+Sha224.prototype._hash = function () {
+  var H = Buffer.allocUnsafe(28)
 
-      return {
-        div: div,
-        mod: mod
-      };
-    }
+  H.writeInt32BE(this._a, 0)
+  H.writeInt32BE(this._b, 4)
+  H.writeInt32BE(this._c, 8)
+  H.writeInt32BE(this._d, 12)
+  H.writeInt32BE(this._e, 16)
+  H.writeInt32BE(this._f, 20)
+  H.writeInt32BE(this._g, 24)
 
-    if (this.negative === 0 && num.negative !== 0) {
-      res = this.divmod(num.neg(), mode);
+  return H
+}
 
-      if (mode !== 'mod') {
-        div = res.div.neg();
-      }
+module.exports = Sha224
 
-      return {
-        div: div,
-        mod: res.mod
-      };
-    }
+},{"./hash":102,"./sha256":107,"inherits":96,"safe-buffer":101}],107:[function(require,module,exports){
+/**
+ * A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as defined
+ * in FIPS 180-2
+ * Version 2.2-beta Copyright Angel Marin, Paul Johnston 2000 - 2009.
+ * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
+ *
+ */
 
-    if ((this.negative & num.negative) !== 0) {
-      res = this.neg().divmod(num.neg(), mode);
+var inherits = require('inherits')
+var Hash = require('./hash')
+var Buffer = require('safe-buffer').Buffer
 
-      if (mode !== 'div') {
-        mod = res.mod.neg();
-        if (positive && mod.negative !== 0) {
-          mod.isub(num);
-        }
-      }
+var K = [
+  0x428A2F98, 0x71374491, 0xB5C0FBCF, 0xE9B5DBA5,
+  0x3956C25B, 0x59F111F1, 0x923F82A4, 0xAB1C5ED5,
+  0xD807AA98, 0x12835B01, 0x243185BE, 0x550C7DC3,
+  0x72BE5D74, 0x80DEB1FE, 0x9BDC06A7, 0xC19BF174,
+  0xE49B69C1, 0xEFBE4786, 0x0FC19DC6, 0x240CA1CC,
+  0x2DE92C6F, 0x4A7484AA, 0x5CB0A9DC, 0x76F988DA,
+  0x983E5152, 0xA831C66D, 0xB00327C8, 0xBF597FC7,
+  0xC6E00BF3, 0xD5A79147, 0x06CA6351, 0x14292967,
+  0x27B70A85, 0x2E1B2138, 0x4D2C6DFC, 0x53380D13,
+  0x650A7354, 0x766A0ABB, 0x81C2C92E, 0x92722C85,
+  0xA2BFE8A1, 0xA81A664B, 0xC24B8B70, 0xC76C51A3,
+  0xD192E819, 0xD6990624, 0xF40E3585, 0x106AA070,
+  0x19A4C116, 0x1E376C08, 0x2748774C, 0x34B0BCB5,
+  0x391C0CB3, 0x4ED8AA4A, 0x5B9CCA4F, 0x682E6FF3,
+  0x748F82EE, 0x78A5636F, 0x84C87814, 0x8CC70208,
+  0x90BEFFFA, 0xA4506CEB, 0xBEF9A3F7, 0xC67178F2
+]
 
-      return {
-        div: res.div,
-        mod: mod
-      };
-    }
+var W = new Array(64)
 
-    // Both numbers are positive at this point
+function Sha256 () {
+  this.init()
 
-    // Strip both numbers to approximate shift value
-    if (num.length > this.length || this.cmp(num) < 0) {
-      return {
-        div: new BN(0),
-        mod: this
-      };
-    }
+  this._w = W // new Array(64)
 
-    // Very short reduction
-    if (num.length === 1) {
-      if (mode === 'div') {
-        return {
-          div: this.divn(num.words[0]),
-          mod: null
-        };
-      }
+  Hash.call(this, 64, 56)
+}
 
-      if (mode === 'mod') {
-        return {
-          div: null,
-          mod: new BN(this.modn(num.words[0]))
-        };
-      }
+inherits(Sha256, Hash)
 
-      return {
-        div: this.divn(num.words[0]),
-        mod: new BN(this.modn(num.words[0]))
-      };
-    }
+Sha256.prototype.init = function () {
+  this._a = 0x6a09e667
+  this._b = 0xbb67ae85
+  this._c = 0x3c6ef372
+  this._d = 0xa54ff53a
+  this._e = 0x510e527f
+  this._f = 0x9b05688c
+  this._g = 0x1f83d9ab
+  this._h = 0x5be0cd19
 
-    return this._wordDiv(num, mode);
-  };
+  return this
+}
 
-  // Find `this` / `num`
-  BN.prototype.div = function div (num) {
-    return this.divmod(num, 'div', false).div;
-  };
+function ch (x, y, z) {
+  return z ^ (x & (y ^ z))
+}
 
-  // Find `this` % `num`
-  BN.prototype.mod = function mod (num) {
-    return this.divmod(num, 'mod', false).mod;
-  };
+function maj (x, y, z) {
+  return (x & y) | (z & (x | y))
+}
 
-  BN.prototype.umod = function umod (num) {
-    return this.divmod(num, 'mod', true).mod;
-  };
+function sigma0 (x) {
+  return (x >>> 2 | x << 30) ^ (x >>> 13 | x << 19) ^ (x >>> 22 | x << 10)
+}
 
-  // Find Round(`this` / `num`)
-  BN.prototype.divRound = function divRound (num) {
-    var dm = this.divmod(num);
+function sigma1 (x) {
+  return (x >>> 6 | x << 26) ^ (x >>> 11 | x << 21) ^ (x >>> 25 | x << 7)
+}
 
-    // Fast case - exact division
-    if (dm.mod.isZero()) return dm.div;
+function gamma0 (x) {
+  return (x >>> 7 | x << 25) ^ (x >>> 18 | x << 14) ^ (x >>> 3)
+}
 
-    var mod = dm.div.negative !== 0 ? dm.mod.isub(num) : dm.mod;
+function gamma1 (x) {
+  return (x >>> 17 | x << 15) ^ (x >>> 19 | x << 13) ^ (x >>> 10)
+}
 
-    var half = num.ushrn(1);
-    var r2 = num.andln(1);
-    var cmp = mod.cmp(half);
+Sha256.prototype._update = function (M) {
+  var W = this._w
 
-    // Round down
-    if (cmp < 0 || r2 === 1 && cmp === 0) return dm.div;
+  var a = this._a | 0
+  var b = this._b | 0
+  var c = this._c | 0
+  var d = this._d | 0
+  var e = this._e | 0
+  var f = this._f | 0
+  var g = this._g | 0
+  var h = this._h | 0
 
-    // Round up
-    return dm.div.negative !== 0 ? dm.div.isubn(1) : dm.div.iaddn(1);
-  };
+  for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4)
+  for (; i < 64; ++i) W[i] = (gamma1(W[i - 2]) + W[i - 7] + gamma0(W[i - 15]) + W[i - 16]) | 0
 
-  BN.prototype.modn = function modn (num) {
-    assert(num <= 0x3ffffff);
-    var p = (1 << 26) % num;
+  for (var j = 0; j < 64; ++j) {
+    var T1 = (h + sigma1(e) + ch(e, f, g) + K[j] + W[j]) | 0
+    var T2 = (sigma0(a) + maj(a, b, c)) | 0
 
-    var acc = 0;
-    for (var i = this.length - 1; i >= 0; i--) {
-      acc = (p * acc + (this.words[i] | 0)) % num;
-    }
+    h = g
+    g = f
+    f = e
+    e = (d + T1) | 0
+    d = c
+    c = b
+    b = a
+    a = (T1 + T2) | 0
+  }
 
-    return acc;
-  };
+  this._a = (a + this._a) | 0
+  this._b = (b + this._b) | 0
+  this._c = (c + this._c) | 0
+  this._d = (d + this._d) | 0
+  this._e = (e + this._e) | 0
+  this._f = (f + this._f) | 0
+  this._g = (g + this._g) | 0
+  this._h = (h + this._h) | 0
+}
 
-  // In-place division by number
-  BN.prototype.idivn = function idivn (num) {
-    assert(num <= 0x3ffffff);
+Sha256.prototype._hash = function () {
+  var H = Buffer.allocUnsafe(32)
 
-    var carry = 0;
-    for (var i = this.length - 1; i >= 0; i--) {
-      var w = (this.words[i] | 0) + carry * 0x4000000;
-      this.words[i] = (w / num) | 0;
-      carry = w % num;
-    }
+  H.writeInt32BE(this._a, 0)
+  H.writeInt32BE(this._b, 4)
+  H.writeInt32BE(this._c, 8)
+  H.writeInt32BE(this._d, 12)
+  H.writeInt32BE(this._e, 16)
+  H.writeInt32BE(this._f, 20)
+  H.writeInt32BE(this._g, 24)
+  H.writeInt32BE(this._h, 28)
 
-    return this.strip();
-  };
+  return H
+}
 
-  BN.prototype.divn = function divn (num) {
-    return this.clone().idivn(num);
-  };
+module.exports = Sha256
 
-  BN.prototype.egcd = function egcd (p) {
-    assert(p.negative === 0);
-    assert(!p.isZero());
+},{"./hash":102,"inherits":96,"safe-buffer":101}],108:[function(require,module,exports){
+var inherits = require('inherits')
+var SHA512 = require('./sha512')
+var Hash = require('./hash')
+var Buffer = require('safe-buffer').Buffer
 
-    var x = this;
-    var y = p.clone();
+var W = new Array(160)
 
-    if (x.negative !== 0) {
-      x = x.umod(p);
-    } else {
-      x = x.clone();
-    }
+function Sha384 () {
+  this.init()
+  this._w = W
 
-    // A * x + B * y = x
-    var A = new BN(1);
-    var B = new BN(0);
+  Hash.call(this, 128, 112)
+}
 
-    // C * x + D * y = y
-    var C = new BN(0);
-    var D = new BN(1);
+inherits(Sha384, SHA512)
 
-    var g = 0;
+Sha384.prototype.init = function () {
+  this._ah = 0xcbbb9d5d
+  this._bh = 0x629a292a
+  this._ch = 0x9159015a
+  this._dh = 0x152fecd8
+  this._eh = 0x67332667
+  this._fh = 0x8eb44a87
+  this._gh = 0xdb0c2e0d
+  this._hh = 0x47b5481d
 
-    while (x.isEven() && y.isEven()) {
-      x.iushrn(1);
-      y.iushrn(1);
-      ++g;
-    }
+  this._al = 0xc1059ed8
+  this._bl = 0x367cd507
+  this._cl = 0x3070dd17
+  this._dl = 0xf70e5939
+  this._el = 0xffc00b31
+  this._fl = 0x68581511
+  this._gl = 0x64f98fa7
+  this._hl = 0xbefa4fa4
 
-    var yp = y.clone();
-    var xp = x.clone();
+  return this
+}
 
-    while (!x.isZero()) {
-      for (var i = 0, im = 1; (x.words[0] & im) === 0 && i < 26; ++i, im <<= 1);
-      if (i > 0) {
-        x.iushrn(i);
-        while (i-- > 0) {
-          if (A.isOdd() || B.isOdd()) {
-            A.iadd(yp);
-            B.isub(xp);
-          }
+Sha384.prototype._hash = function () {
+  var H = Buffer.allocUnsafe(48)
 
-          A.iushrn(1);
-          B.iushrn(1);
-        }
-      }
+  function writeInt64BE (h, l, offset) {
+    H.writeInt32BE(h, offset)
+    H.writeInt32BE(l, offset + 4)
+  }
 
-      for (var j = 0, jm = 1; (y.words[0] & jm) === 0 && j < 26; ++j, jm <<= 1);
-      if (j > 0) {
-        y.iushrn(j);
-        while (j-- > 0) {
-          if (C.isOdd() || D.isOdd()) {
-            C.iadd(yp);
-            D.isub(xp);
-          }
+  writeInt64BE(this._ah, this._al, 0)
+  writeInt64BE(this._bh, this._bl, 8)
+  writeInt64BE(this._ch, this._cl, 16)
+  writeInt64BE(this._dh, this._dl, 24)
+  writeInt64BE(this._eh, this._el, 32)
+  writeInt64BE(this._fh, this._fl, 40)
 
-          C.iushrn(1);
-          D.iushrn(1);
-        }
-      }
+  return H
+}
 
-      if (x.cmp(y) >= 0) {
-        x.isub(y);
-        A.isub(C);
-        B.isub(D);
-      } else {
-        y.isub(x);
-        C.isub(A);
-        D.isub(B);
-      }
-    }
+module.exports = Sha384
 
-    return {
-      a: C,
-      b: D,
-      gcd: y.iushln(g)
-    };
-  };
+},{"./hash":102,"./sha512":109,"inherits":96,"safe-buffer":101}],109:[function(require,module,exports){
+var inherits = require('inherits')
+var Hash = require('./hash')
+var Buffer = require('safe-buffer').Buffer
 
-  // This is reduced incarnation of the binary EEA
-  // above, designated to invert members of the
-  // _prime_ fields F(p) at a maximal speed
-  BN.prototype._invmp = function _invmp (p) {
-    assert(p.negative === 0);
-    assert(!p.isZero());
-
-    var a = this;
-    var b = p.clone();
+var K = [
+  0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd,
+  0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc,
+  0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019,
+  0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118,
+  0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe,
+  0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2,
+  0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1,
+  0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694,
+  0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3,
+  0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65,
+  0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483,
+  0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5,
+  0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210,
+  0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4,
+  0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725,
+  0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70,
+  0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926,
+  0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df,
+  0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8,
+  0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b,
+  0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001,
+  0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30,
+  0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910,
+  0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8,
+  0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53,
+  0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8,
+  0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb,
+  0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3,
+  0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60,
+  0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec,
+  0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9,
+  0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b,
+  0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207,
+  0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178,
+  0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6,
+  0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b,
+  0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493,
+  0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c,
+  0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a,
+  0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817
+]
 
-    if (a.negative !== 0) {
-      a = a.umod(p);
-    } else {
-      a = a.clone();
-    }
+var W = new Array(160)
 
-    var x1 = new BN(1);
-    var x2 = new BN(0);
+function Sha512 () {
+  this.init()
+  this._w = W
 
-    var delta = b.clone();
+  Hash.call(this, 128, 112)
+}
 
-    while (a.cmpn(1) > 0 && b.cmpn(1) > 0) {
-      for (var i = 0, im = 1; (a.words[0] & im) === 0 && i < 26; ++i, im <<= 1);
-      if (i > 0) {
-        a.iushrn(i);
-        while (i-- > 0) {
-          if (x1.isOdd()) {
-            x1.iadd(delta);
-          }
+inherits(Sha512, Hash)
 
-          x1.iushrn(1);
-        }
-      }
+Sha512.prototype.init = function () {
+  this._ah = 0x6a09e667
+  this._bh = 0xbb67ae85
+  this._ch = 0x3c6ef372
+  this._dh = 0xa54ff53a
+  this._eh = 0x510e527f
+  this._fh = 0x9b05688c
+  this._gh = 0x1f83d9ab
+  this._hh = 0x5be0cd19
 
-      for (var j = 0, jm = 1; (b.words[0] & jm) === 0 && j < 26; ++j, jm <<= 1);
-      if (j > 0) {
-        b.iushrn(j);
-        while (j-- > 0) {
-          if (x2.isOdd()) {
-            x2.iadd(delta);
-          }
+  this._al = 0xf3bcc908
+  this._bl = 0x84caa73b
+  this._cl = 0xfe94f82b
+  this._dl = 0x5f1d36f1
+  this._el = 0xade682d1
+  this._fl = 0x2b3e6c1f
+  this._gl = 0xfb41bd6b
+  this._hl = 0x137e2179
 
-          x2.iushrn(1);
-        }
-      }
+  return this
+}
 
-      if (a.cmp(b) >= 0) {
-        a.isub(b);
-        x1.isub(x2);
-      } else {
-        b.isub(a);
-        x2.isub(x1);
-      }
-    }
+function Ch (x, y, z) {
+  return z ^ (x & (y ^ z))
+}
 
-    var res;
-    if (a.cmpn(1) === 0) {
-      res = x1;
-    } else {
-      res = x2;
-    }
+function maj (x, y, z) {
+  return (x & y) | (z & (x | y))
+}
 
-    if (res.cmpn(0) < 0) {
-      res.iadd(p);
-    }
+function sigma0 (x, xl) {
+  return (x >>> 28 | xl << 4) ^ (xl >>> 2 | x << 30) ^ (xl >>> 7 | x << 25)
+}
 
-    return res;
-  };
+function sigma1 (x, xl) {
+  return (x >>> 14 | xl << 18) ^ (x >>> 18 | xl << 14) ^ (xl >>> 9 | x << 23)
+}
 
-  BN.prototype.gcd = function gcd (num) {
-    if (this.isZero()) return num.abs();
-    if (num.isZero()) return this.abs();
+function Gamma0 (x, xl) {
+  return (x >>> 1 | xl << 31) ^ (x >>> 8 | xl << 24) ^ (x >>> 7)
+}
 
-    var a = this.clone();
-    var b = num.clone();
-    a.negative = 0;
-    b.negative = 0;
+function Gamma0l (x, xl) {
+  return (x >>> 1 | xl << 31) ^ (x >>> 8 | xl << 24) ^ (x >>> 7 | xl << 25)
+}
 
-    // Remove common factor of two
-    for (var shift = 0; a.isEven() && b.isEven(); shift++) {
-      a.iushrn(1);
-      b.iushrn(1);
-    }
+function Gamma1 (x, xl) {
+  return (x >>> 19 | xl << 13) ^ (xl >>> 29 | x << 3) ^ (x >>> 6)
+}
 
-    do {
-      while (a.isEven()) {
-        a.iushrn(1);
-      }
-      while (b.isEven()) {
-        b.iushrn(1);
-      }
+function Gamma1l (x, xl) {
+  return (x >>> 19 | xl << 13) ^ (xl >>> 29 | x << 3) ^ (x >>> 6 | xl << 26)
+}
 
-      var r = a.cmp(b);
-      if (r < 0) {
-        // Swap `a` and `b` to make `a` always bigger than `b`
-        var t = a;
-        a = b;
-        b = t;
-      } else if (r === 0 || b.cmpn(1) === 0) {
-        break;
-      }
+function getCarry (a, b) {
+  return (a >>> 0) < (b >>> 0) ? 1 : 0
+}
 
-      a.isub(b);
-    } while (true);
+Sha512.prototype._update = function (M) {
+  var W = this._w
 
-    return b.iushln(shift);
-  };
+  var ah = this._ah | 0
+  var bh = this._bh | 0
+  var ch = this._ch | 0
+  var dh = this._dh | 0
+  var eh = this._eh | 0
+  var fh = this._fh | 0
+  var gh = this._gh | 0
+  var hh = this._hh | 0
 
-  // Invert number in the field F(num)
-  BN.prototype.invm = function invm (num) {
-    return this.egcd(num).a.umod(num);
-  };
+  var al = this._al | 0
+  var bl = this._bl | 0
+  var cl = this._cl | 0
+  var dl = this._dl | 0
+  var el = this._el | 0
+  var fl = this._fl | 0
+  var gl = this._gl | 0
+  var hl = this._hl | 0
 
-  BN.prototype.isEven = function isEven () {
-    return (this.words[0] & 1) === 0;
-  };
+  for (var i = 0; i < 32; i += 2) {
+    W[i] = M.readInt32BE(i * 4)
+    W[i + 1] = M.readInt32BE(i * 4 + 4)
+  }
+  for (; i < 160; i += 2) {
+    var xh = W[i - 15 * 2]
+    var xl = W[i - 15 * 2 + 1]
+    var gamma0 = Gamma0(xh, xl)
+    var gamma0l = Gamma0l(xl, xh)
 
-  BN.prototype.isOdd = function isOdd () {
-    return (this.words[0] & 1) === 1;
-  };
+    xh = W[i - 2 * 2]
+    xl = W[i - 2 * 2 + 1]
+    var gamma1 = Gamma1(xh, xl)
+    var gamma1l = Gamma1l(xl, xh)
 
-  // And first word and num
-  BN.prototype.andln = function andln (num) {
-    return this.words[0] & num;
-  };
+    // W[i] = gamma0 + W[i - 7] + gamma1 + W[i - 16]
+    var Wi7h = W[i - 7 * 2]
+    var Wi7l = W[i - 7 * 2 + 1]
 
-  // Increment at the bit position in-line
-  BN.prototype.bincn = function bincn (bit) {
-    assert(typeof bit === 'number');
-    var r = bit % 26;
-    var s = (bit - r) / 26;
-    var q = 1 << r;
+    var Wi16h = W[i - 16 * 2]
+    var Wi16l = W[i - 16 * 2 + 1]
 
-    // Fast case: bit is much higher than all existing words
-    if (this.length <= s) {
-      this._expand(s + 1);
-      this.words[s] |= q;
-      return this;
-    }
+    var Wil = (gamma0l + Wi7l) | 0
+    var Wih = (gamma0 + Wi7h + getCarry(Wil, gamma0l)) | 0
+    Wil = (Wil + gamma1l) | 0
+    Wih = (Wih + gamma1 + getCarry(Wil, gamma1l)) | 0
+    Wil = (Wil + Wi16l) | 0
+    Wih = (Wih + Wi16h + getCarry(Wil, Wi16l)) | 0
 
-    // Add bit and propagate, if needed
-    var carry = q;
-    for (var i = s; carry !== 0 && i < this.length; i++) {
-      var w = this.words[i] | 0;
-      w += carry;
-      carry = w >>> 26;
-      w &= 0x3ffffff;
-      this.words[i] = w;
-    }
-    if (carry !== 0) {
-      this.words[i] = carry;
-      this.length++;
-    }
-    return this;
-  };
+    W[i] = Wih
+    W[i + 1] = Wil
+  }
 
-  BN.prototype.isZero = function isZero () {
-    return this.length === 1 && this.words[0] === 0;
-  };
+  for (var j = 0; j < 160; j += 2) {
+    Wih = W[j]
+    Wil = W[j + 1]
 
-  BN.prototype.cmpn = function cmpn (num) {
-    var negative = num < 0;
+    var majh = maj(ah, bh, ch)
+    var majl = maj(al, bl, cl)
 
-    if (this.negative !== 0 && !negative) return -1;
-    if (this.negative === 0 && negative) return 1;
+    var sigma0h = sigma0(ah, al)
+    var sigma0l = sigma0(al, ah)
+    var sigma1h = sigma1(eh, el)
+    var sigma1l = sigma1(el, eh)
 
-    this.strip();
+    // t1 = h + sigma1 + ch + K[j] + W[j]
+    var Kih = K[j]
+    var Kil = K[j + 1]
 
-    var res;
-    if (this.length > 1) {
-      res = 1;
-    } else {
-      if (negative) {
-        num = -num;
-      }
+    var chh = Ch(eh, fh, gh)
+    var chl = Ch(el, fl, gl)
 
-      assert(num <= 0x3ffffff, 'Number is too big');
+    var t1l = (hl + sigma1l) | 0
+    var t1h = (hh + sigma1h + getCarry(t1l, hl)) | 0
+    t1l = (t1l + chl) | 0
+    t1h = (t1h + chh + getCarry(t1l, chl)) | 0
+    t1l = (t1l + Kil) | 0
+    t1h = (t1h + Kih + getCarry(t1l, Kil)) | 0
+    t1l = (t1l + Wil) | 0
+    t1h = (t1h + Wih + getCarry(t1l, Wil)) | 0
 
-      var w = this.words[0] | 0;
-      res = w === num ? 0 : w < num ? -1 : 1;
-    }
-    if (this.negative !== 0) return -res | 0;
-    return res;
-  };
+    // t2 = sigma0 + maj
+    var t2l = (sigma0l + majl) | 0
+    var t2h = (sigma0h + majh + getCarry(t2l, sigma0l)) | 0
 
-  // Compare two numbers and return:
-  // 1 - if `this` > `num`
-  // 0 - if `this` == `num`
-  // -1 - if `this` < `num`
-  BN.prototype.cmp = function cmp (num) {
-    if (this.negative !== 0 && num.negative === 0) return -1;
-    if (this.negative === 0 && num.negative !== 0) return 1;
+    hh = gh
+    hl = gl
+    gh = fh
+    gl = fl
+    fh = eh
+    fl = el
+    el = (dl + t1l) | 0
+    eh = (dh + t1h + getCarry(el, dl)) | 0
+    dh = ch
+    dl = cl
+    ch = bh
+    cl = bl
+    bh = ah
+    bl = al
+    al = (t1l + t2l) | 0
+    ah = (t1h + t2h + getCarry(al, t1l)) | 0
+  }
 
-    var res = this.ucmp(num);
-    if (this.negative !== 0) return -res | 0;
-    return res;
-  };
+  this._al = (this._al + al) | 0
+  this._bl = (this._bl + bl) | 0
+  this._cl = (this._cl + cl) | 0
+  this._dl = (this._dl + dl) | 0
+  this._el = (this._el + el) | 0
+  this._fl = (this._fl + fl) | 0
+  this._gl = (this._gl + gl) | 0
+  this._hl = (this._hl + hl) | 0
 
-  // Unsigned comparison
-  BN.prototype.ucmp = function ucmp (num) {
-    // At this point both numbers have the same sign
-    if (this.length > num.length) return 1;
-    if (this.length < num.length) return -1;
+  this._ah = (this._ah + ah + getCarry(this._al, al)) | 0
+  this._bh = (this._bh + bh + getCarry(this._bl, bl)) | 0
+  this._ch = (this._ch + ch + getCarry(this._cl, cl)) | 0
+  this._dh = (this._dh + dh + getCarry(this._dl, dl)) | 0
+  this._eh = (this._eh + eh + getCarry(this._el, el)) | 0
+  this._fh = (this._fh + fh + getCarry(this._fl, fl)) | 0
+  this._gh = (this._gh + gh + getCarry(this._gl, gl)) | 0
+  this._hh = (this._hh + hh + getCarry(this._hl, hl)) | 0
+}
 
-    var res = 0;
-    for (var i = this.length - 1; i >= 0; i--) {
-      var a = this.words[i] | 0;
-      var b = num.words[i] | 0;
+Sha512.prototype._hash = function () {
+  var H = Buffer.allocUnsafe(64)
 
-      if (a === b) continue;
-      if (a < b) {
-        res = -1;
-      } else if (a > b) {
-        res = 1;
-      }
-      break;
-    }
-    return res;
-  };
+  function writeInt64BE (h, l, offset) {
+    H.writeInt32BE(h, offset)
+    H.writeInt32BE(l, offset + 4)
+  }
 
-  BN.prototype.gtn = function gtn (num) {
-    return this.cmpn(num) === 1;
-  };
+  writeInt64BE(this._ah, this._al, 0)
+  writeInt64BE(this._bh, this._bl, 8)
+  writeInt64BE(this._ch, this._cl, 16)
+  writeInt64BE(this._dh, this._dl, 24)
+  writeInt64BE(this._eh, this._el, 32)
+  writeInt64BE(this._fh, this._fl, 40)
+  writeInt64BE(this._gh, this._gl, 48)
+  writeInt64BE(this._hh, this._hl, 56)
 
-  BN.prototype.gt = function gt (num) {
-    return this.cmp(num) === 1;
-  };
+  return H
+}
 
-  BN.prototype.gten = function gten (num) {
-    return this.cmpn(num) >= 0;
-  };
+module.exports = Sha512
 
-  BN.prototype.gte = function gte (num) {
-    return this.cmp(num) >= 0;
-  };
+},{"./hash":102,"inherits":96,"safe-buffer":101}],110:[function(require,module,exports){
+var native = require('./native')
 
-  BN.prototype.ltn = function ltn (num) {
-    return this.cmpn(num) === -1;
-  };
+function getTypeName (fn) {
+  return fn.name || fn.toString().match(/function (.*?)\s*\(/)[1]
+}
 
-  BN.prototype.lt = function lt (num) {
-    return this.cmp(num) === -1;
-  };
+function getValueTypeName (value) {
+  return native.Nil(value) ? '' : getTypeName(value.constructor)
+}
 
-  BN.prototype.lten = function lten (num) {
-    return this.cmpn(num) <= 0;
-  };
+function getValue (value) {
+  if (native.Function(value)) return ''
+  if (native.String(value)) return JSON.stringify(value)
+  if (value && native.Object(value)) return ''
+  return value
+}
 
-  BN.prototype.lte = function lte (num) {
-    return this.cmp(num) <= 0;
-  };
+function tfJSON (type) {
+  if (native.Function(type)) return type.toJSON ? type.toJSON() : getTypeName(type)
+  if (native.Array(type)) return 'Array'
+  if (type && native.Object(type)) return 'Object'
 
-  BN.prototype.eqn = function eqn (num) {
-    return this.cmpn(num) === 0;
-  };
+  return type !== undefined ? type : ''
+}
 
-  BN.prototype.eq = function eq (num) {
-    return this.cmp(num) === 0;
-  };
+function tfErrorString (type, value, valueTypeName) {
+  var valueJson = getValue(value)
 
-  //
-  // A reduce context, could be using montgomery or something better, depending
-  // on the `m` itself.
-  //
-  BN.red = function red (num) {
-    return new Red(num);
-  };
+  return 'Expected ' + tfJSON(type) + ', got' +
+    (valueTypeName !== '' ? ' ' + valueTypeName : '') +
+    (valueJson !== '' ? ' ' + valueJson : '')
+}
 
-  BN.prototype.toRed = function toRed (ctx) {
-    assert(!this.red, 'Already a number in reduction context');
-    assert(this.negative === 0, 'red works only with positives');
-    return ctx.convertTo(this)._forceRed(ctx);
-  };
+function TfTypeError (type, value, valueTypeName) {
+  valueTypeName = valueTypeName || getValueTypeName(value)
+  this.message = tfErrorString(type, value, valueTypeName)
 
-  BN.prototype.fromRed = function fromRed () {
-    assert(this.red, 'fromRed works only with numbers in reduction context');
-    return this.red.convertFrom(this);
-  };
+  Error.captureStackTrace(this, TfTypeError)
+  this.__type = type
+  this.__value = value
+  this.__valueTypeName = valueTypeName
+}
 
-  BN.prototype._forceRed = function _forceRed (ctx) {
-    this.red = ctx;
-    return this;
-  };
+TfTypeError.prototype = Object.create(Error.prototype)
+TfTypeError.prototype.constructor = TfTypeError
 
-  BN.prototype.forceRed = function forceRed (ctx) {
-    assert(!this.red, 'Already a number in reduction context');
-    return this._forceRed(ctx);
-  };
+function tfPropertyErrorString (type, label, name, value, valueTypeName) {
+  var description = '" of type '
+  if (label === 'key') description = '" with key type '
 
-  BN.prototype.redAdd = function redAdd (num) {
-    assert(this.red, 'redAdd works only with red numbers');
-    return this.red.add(this, num);
-  };
+  return tfErrorString('property "' + tfJSON(name) + description + tfJSON(type), value, valueTypeName)
+}
 
-  BN.prototype.redIAdd = function redIAdd (num) {
-    assert(this.red, 'redIAdd works only with red numbers');
-    return this.red.iadd(this, num);
-  };
+function TfPropertyTypeError (type, property, label, value, valueTypeName) {
+  if (type) {
+    valueTypeName = valueTypeName || getValueTypeName(value)
+    this.message = tfPropertyErrorString(type, label, property, value, valueTypeName)
+  } else {
+    this.message = 'Unexpected property "' + property + '"'
+  }
 
-  BN.prototype.redSub = function redSub (num) {
-    assert(this.red, 'redSub works only with red numbers');
-    return this.red.sub(this, num);
-  };
+  Error.captureStackTrace(this, TfTypeError)
+  this.__label = label
+  this.__property = property
+  this.__type = type
+  this.__value = value
+  this.__valueTypeName = valueTypeName
+}
 
-  BN.prototype.redISub = function redISub (num) {
-    assert(this.red, 'redISub works only with red numbers');
-    return this.red.isub(this, num);
-  };
+TfPropertyTypeError.prototype = Object.create(Error.prototype)
+TfPropertyTypeError.prototype.constructor = TfTypeError
 
-  BN.prototype.redShl = function redShl (num) {
-    assert(this.red, 'redShl works only with red numbers');
-    return this.red.shl(this, num);
-  };
+function tfCustomError (expected, actual) {
+  return new TfTypeError(expected, {}, actual)
+}
 
-  BN.prototype.redMul = function redMul (num) {
-    assert(this.red, 'redMul works only with red numbers');
-    this.red._verify2(this, num);
-    return this.red.mul(this, num);
-  };
+function tfSubError (e, property, label) {
+  // sub child?
+  if (e instanceof TfPropertyTypeError) {
+    property = property + '.' + e.__property
 
-  BN.prototype.redIMul = function redIMul (num) {
-    assert(this.red, 'redMul works only with red numbers');
-    this.red._verify2(this, num);
-    return this.red.imul(this, num);
-  };
+    e = new TfPropertyTypeError(
+      e.__type, property, e.__label, e.__value, e.__valueTypeName
+    )
 
-  BN.prototype.redSqr = function redSqr () {
-    assert(this.red, 'redSqr works only with red numbers');
-    this.red._verify1(this);
-    return this.red.sqr(this);
-  };
+  // child?
+  } else if (e instanceof TfTypeError) {
+    e = new TfPropertyTypeError(
+      e.__type, property, label, e.__value, e.__valueTypeName
+    )
+  }
 
-  BN.prototype.redISqr = function redISqr () {
-    assert(this.red, 'redISqr works only with red numbers');
-    this.red._verify1(this);
-    return this.red.isqr(this);
-  };
+  Error.captureStackTrace(e)
+  return e
+}
 
-  // Square root over p
-  BN.prototype.redSqrt = function redSqrt () {
-    assert(this.red, 'redSqrt works only with red numbers');
-    this.red._verify1(this);
-    return this.red.sqrt(this);
-  };
+module.exports = {
+  TfTypeError: TfTypeError,
+  TfPropertyTypeError: TfPropertyTypeError,
+  tfCustomError: tfCustomError,
+  tfSubError: tfSubError,
+  tfJSON: tfJSON,
+  getValueTypeName: getValueTypeName
+}
 
-  BN.prototype.redInvm = function redInvm () {
-    assert(this.red, 'redInvm works only with red numbers');
-    this.red._verify1(this);
-    return this.red.invm(this);
-  };
+},{"./native":113}],111:[function(require,module,exports){
+(function (Buffer){
+var NATIVE = require('./native')
+var ERRORS = require('./errors')
 
-  // Return negative clone of `this` % `red modulo`
-  BN.prototype.redNeg = function redNeg () {
-    assert(this.red, 'redNeg works only with red numbers');
-    this.red._verify1(this);
-    return this.red.neg(this);
-  };
+function _Buffer (value) {
+  return Buffer.isBuffer(value)
+}
 
-  BN.prototype.redPow = function redPow (num) {
-    assert(this.red && !num.red, 'redPow(normalNum)');
-    this.red._verify1(this);
-    return this.red.pow(this, num);
-  };
+function Hex (value) {
+  return typeof value === 'string' && /^([0-9a-f]{2})+$/i.test(value)
+}
 
-  // Prime numbers with efficient reduction
-  var primes = {
-    k256: null,
-    p224: null,
-    p192: null,
-    p25519: null
-  };
+function _LengthN (type, length) {
+  var name = type.toJSON()
 
-  // Pseudo-Mersenne prime
-  function MPrime (name, p) {
-    // P = 2 ^ N - K
-    this.name = name;
-    this.p = new BN(p, 16);
-    this.n = this.p.bitLength();
-    this.k = new BN(1).iushln(this.n).isub(this.p);
+  function Length (value) {
+    if (!type(value)) return false
+    if (value.length === length) return true
 
-    this.tmp = this._tmp();
+    throw ERRORS.tfCustomError(name + '(Length: ' + length + ')', name + '(Length: ' + value.length + ')')
   }
+  Length.toJSON = function () { return name }
 
-  MPrime.prototype._tmp = function _tmp () {
-    var tmp = new BN(null);
-    tmp.words = new Array(Math.ceil(this.n / 13));
-    return tmp;
-  };
-
-  MPrime.prototype.ireduce = function ireduce (num) {
-    // Assumes that `num` is less than `P^2`
-    // num = HI * (2 ^ N - K) + HI * K + LO = HI * K + LO (mod P)
-    var r = num;
-    var rlen;
+  return Length
+}
 
-    do {
-      this.split(r, this.tmp);
-      r = this.imulK(r);
-      r = r.iadd(this.tmp);
-      rlen = r.bitLength();
-    } while (rlen > this.n);
+var _ArrayN = _LengthN.bind(null, NATIVE.Array)
+var _BufferN = _LengthN.bind(null, _Buffer)
+var _HexN = _LengthN.bind(null, Hex)
+var _StringN = _LengthN.bind(null, NATIVE.String)
 
-    var cmp = rlen < this.n ? -1 : r.ucmp(this.p);
-    if (cmp === 0) {
-      r.words[0] = 0;
-      r.length = 1;
-    } else if (cmp > 0) {
-      r.isub(this.p);
-    } else {
-      r.strip();
-    }
+var UINT53_MAX = Math.pow(2, 53) - 1
 
-    return r;
-  };
+function Finite (value) {
+  return typeof value === 'number' && isFinite(value)
+}
+function Int8 (value) { return ((value << 24) >> 24) === value }
+function Int16 (value) { return ((value << 16) >> 16) === value }
+function Int32 (value) { return (value | 0) === value }
+function UInt8 (value) { return (value & 0xff) === value }
+function UInt16 (value) { return (value & 0xffff) === value }
+function UInt32 (value) { return (value >>> 0) === value }
+function UInt53 (value) {
+  return typeof value === 'number' &&
+    value >= 0 &&
+    value <= UINT53_MAX &&
+    Math.floor(value) === value
+}
 
-  MPrime.prototype.split = function split (input, out) {
-    input.iushrn(this.n, 0, out);
-  };
+var types = {
+  ArrayN: _ArrayN,
+  Buffer: _Buffer,
+  BufferN: _BufferN,
+  Finite: Finite,
+  Hex: Hex,
+  HexN: _HexN,
+  Int8: Int8,
+  Int16: Int16,
+  Int32: Int32,
+  StringN: _StringN,
+  UInt8: UInt8,
+  UInt16: UInt16,
+  UInt32: UInt32,
+  UInt53: UInt53
+}
 
-  MPrime.prototype.imulK = function imulK (num) {
-    return num.imul(this.k);
-  };
+for (var typeName in types) {
+  types[typeName].toJSON = function (t) {
+    return t
+  }.bind(null, typeName)
+}
 
-  function K256 () {
-    MPrime.call(
-      this,
-      'k256',
-      'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe fffffc2f');
-  }
-  inherits(K256, MPrime);
+module.exports = types
 
-  K256.prototype.split = function split (input, output) {
-    // 256 = 9 * 26 + 22
-    var mask = 0x3fffff;
+}).call(this,{"isBuffer":require("../../../../../.nvm/versions/node/v6.0.0/lib/node_modules/browserify/node_modules/is-buffer/index.js")})
+},{"../../../../../.nvm/versions/node/v6.0.0/lib/node_modules/browserify/node_modules/is-buffer/index.js":10,"./errors":110,"./native":113}],112:[function(require,module,exports){
+var ERRORS = require('./errors')
+var NATIVE = require('./native')
 
-    var outLen = Math.min(input.length, 9);
-    for (var i = 0; i < outLen; i++) {
-      output.words[i] = input.words[i];
-    }
-    output.length = outLen;
+// short-hand
+var tfJSON = ERRORS.tfJSON
+var TfTypeError = ERRORS.TfTypeError
+var TfPropertyTypeError = ERRORS.TfPropertyTypeError
+var tfSubError = ERRORS.tfSubError
+var getValueTypeName = ERRORS.getValueTypeName
 
-    if (input.length <= 9) {
-      input.words[0] = 0;
-      input.length = 1;
-      return;
-    }
+var TYPES = {
+  arrayOf: function arrayOf (type) {
+    type = compile(type)
 
-    // Shift by 9 limbs
-    var prev = input.words[9];
-    output.words[output.length++] = prev & mask;
+    function _arrayOf (array, strict) {
+      if (!NATIVE.Array(array)) return false
+      if (NATIVE.Nil(array)) return false
 
-    for (i = 10; i < input.length; i++) {
-      var next = input.words[i] | 0;
-      input.words[i - 10] = ((next & mask) << 4) | (prev >>> 22);
-      prev = next;
-    }
-    prev >>>= 22;
-    input.words[i - 10] = prev;
-    if (prev === 0 && input.length > 10) {
-      input.length -= 10;
-    } else {
-      input.length -= 9;
+      return array.every(function (value, i) {
+        try {
+          return typeforce(type, value, strict)
+        } catch (e) {
+          throw tfSubError(e, i)
+        }
+      })
     }
-  };
+    _arrayOf.toJSON = function () { return '[' + tfJSON(type) + ']' }
 
-  K256.prototype.imulK = function imulK (num) {
-    // K = 0x1000003d1 = [ 0x40, 0x3d1 ]
-    num.words[num.length] = 0;
-    num.words[num.length + 1] = 0;
-    num.length += 2;
+    return _arrayOf
+  },
 
-    // bounded at: 0x40 * 0x3ffffff + 0x3d0 = 0x100000390
-    var lo = 0;
-    for (var i = 0; i < num.length; i++) {
-      var w = num.words[i] | 0;
-      lo += w * 0x3d1;
-      num.words[i] = lo & 0x3ffffff;
-      lo = w * 0x40 + ((lo / 0x4000000) | 0);
-    }
+  maybe: function maybe (type) {
+    type = compile(type)
 
-    // Fast length reduction
-    if (num.words[num.length - 1] === 0) {
-      num.length--;
-      if (num.words[num.length - 1] === 0) {
-        num.length--;
-      }
+    function _maybe (value, strict) {
+      return NATIVE.Nil(value) || type(value, strict, maybe)
     }
-    return num;
-  };
+    _maybe.toJSON = function () { return '?' + tfJSON(type) }
 
-  function P224 () {
-    MPrime.call(
-      this,
-      'p224',
-      'ffffffff ffffffff ffffffff ffffffff 00000000 00000000 00000001');
-  }
-  inherits(P224, MPrime);
+    return _maybe
+  },
 
-  function P192 () {
-    MPrime.call(
-      this,
-      'p192',
-      'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff');
-  }
-  inherits(P192, MPrime);
+  map: function map (propertyType, propertyKeyType) {
+    propertyType = compile(propertyType)
+    if (propertyKeyType) propertyKeyType = compile(propertyKeyType)
 
-  function P25519 () {
-    // 2 ^ 255 - 19
-    MPrime.call(
-      this,
-      '25519',
-      '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed');
-  }
-  inherits(P25519, MPrime);
+    function _map (value, strict) {
+      if (!NATIVE.Object(value)) return false
+      if (NATIVE.Nil(value)) return false
 
-  P25519.prototype.imulK = function imulK (num) {
-    // K = 0x13
-    var carry = 0;
-    for (var i = 0; i < num.length; i++) {
-      var hi = (num.words[i] | 0) * 0x13 + carry;
-      var lo = hi & 0x3ffffff;
-      hi >>>= 26;
+      for (var propertyName in value) {
+        try {
+          if (propertyKeyType) {
+            typeforce(propertyKeyType, propertyName, strict)
+          }
+        } catch (e) {
+          throw tfSubError(e, propertyName, 'key')
+        }
 
-      num.words[i] = lo;
-      carry = hi;
-    }
-    if (carry !== 0) {
-      num.words[num.length++] = carry;
-    }
-    return num;
-  };
+        try {
+          var propertyValue = value[propertyName]
+          typeforce(propertyType, propertyValue, strict)
+        } catch (e) {
+          throw tfSubError(e, propertyName)
+        }
+      }
 
-  // Exported mostly for testing purposes, use plain name instead
-  BN._prime = function prime (name) {
-    // Cached version of prime
-    if (primes[name]) return primes[name];
+      return true
+    }
 
-    var prime;
-    if (name === 'k256') {
-      prime = new K256();
-    } else if (name === 'p224') {
-      prime = new P224();
-    } else if (name === 'p192') {
-      prime = new P192();
-    } else if (name === 'p25519') {
-      prime = new P25519();
+    if (propertyKeyType) {
+      _map.toJSON = function () {
+        return '{' + tfJSON(propertyKeyType) + ': ' + tfJSON(propertyType) + '}'
+      }
     } else {
-      throw new Error('Unknown prime ' + name);
+      _map.toJSON = function () { return '{' + tfJSON(propertyType) + '}' }
     }
-    primes[name] = prime;
 
-    return prime;
-  };
+    return _map
+  },
 
-  //
-  // Base reduction engine
-  //
-  function Red (m) {
-    if (typeof m === 'string') {
-      var prime = BN._prime(m);
-      this.m = prime.p;
-      this.prime = prime;
-    } else {
-      assert(m.gtn(1), 'modulus must be greater than 1');
-      this.m = m;
-      this.prime = null;
+  object: function object (uncompiled) {
+    var type = {}
+
+    for (var typePropertyName in uncompiled) {
+      type[typePropertyName] = compile(uncompiled[typePropertyName])
     }
-  }
 
-  Red.prototype._verify1 = function _verify1 (a) {
-    assert(a.negative === 0, 'red works only with positives');
-    assert(a.red, 'red works only with red numbers');
-  };
+    function _object (value, strict) {
+      if (!NATIVE.Object(value)) return false
+      if (NATIVE.Nil(value)) return false
 
-  Red.prototype._verify2 = function _verify2 (a, b) {
-    assert((a.negative | b.negative) === 0, 'red works only with positives');
-    assert(a.red && a.red === b.red,
-      'red works only with red numbers');
-  };
+      var propertyName
 
-  Red.prototype.imod = function imod (a) {
-    if (this.prime) return this.prime.ireduce(a)._forceRed(this);
-    return a.umod(this.m)._forceRed(this);
-  };
+      try {
+        for (propertyName in type) {
+          var propertyType = type[propertyName]
+          var propertyValue = value[propertyName]
 
-  Red.prototype.neg = function neg (a) {
-    if (a.isZero()) {
-      return a.clone();
-    }
+          typeforce(propertyType, propertyValue, strict)
+        }
+      } catch (e) {
+        throw tfSubError(e, propertyName)
+      }
 
-    return this.m.sub(a)._forceRed(this);
-  };
+      if (strict) {
+        for (propertyName in value) {
+          if (type[propertyName]) continue
 
-  Red.prototype.add = function add (a, b) {
-    this._verify2(a, b);
+          throw new TfPropertyTypeError(undefined, propertyName)
+        }
+      }
 
-    var res = a.add(b);
-    if (res.cmp(this.m) >= 0) {
-      res.isub(this.m);
+      return true
     }
-    return res._forceRed(this);
-  };
-
-  Red.prototype.iadd = function iadd (a, b) {
-    this._verify2(a, b);
+    _object.toJSON = function () { return tfJSON(type) }
 
-    var res = a.iadd(b);
-    if (res.cmp(this.m) >= 0) {
-      res.isub(this.m);
-    }
-    return res;
-  };
+    return _object
+  },
 
-  Red.prototype.sub = function sub (a, b) {
-    this._verify2(a, b);
+  oneOf: function oneOf () {
+    var types = [].slice.call(arguments).map(compile)
 
-    var res = a.sub(b);
-    if (res.cmpn(0) < 0) {
-      res.iadd(this.m);
+    function _oneOf (value, strict) {
+      return types.some(function (type) {
+        try {
+          return typeforce(type, value, strict)
+        } catch (e) {
+          return false
+        }
+      })
     }
-    return res._forceRed(this);
-  };
+    _oneOf.toJSON = function () { return types.map(tfJSON).join('|') }
 
-  Red.prototype.isub = function isub (a, b) {
-    this._verify2(a, b);
+    return _oneOf
+  },
 
-    var res = a.isub(b);
-    if (res.cmpn(0) < 0) {
-      res.iadd(this.m);
+  quacksLike: function quacksLike (type) {
+    function _quacksLike (value) {
+      return type === getValueTypeName(value)
     }
-    return res;
-  };
+    _quacksLike.toJSON = function () { return type }
 
-  Red.prototype.shl = function shl (a, num) {
-    this._verify1(a);
-    return this.imod(a.ushln(num));
-  };
+    return _quacksLike
+  },
 
-  Red.prototype.imul = function imul (a, b) {
-    this._verify2(a, b);
-    return this.imod(a.imul(b));
-  };
+  tuple: function tuple () {
+    var types = [].slice.call(arguments).map(compile)
 
-  Red.prototype.mul = function mul (a, b) {
-    this._verify2(a, b);
-    return this.imod(a.mul(b));
-  };
+    function _tuple (values, strict) {
+      if (NATIVE.Nil(values)) return false
+      if (NATIVE.Nil(values.length)) return false
+      if (strict && (values.length !== types.length)) return false
 
-  Red.prototype.isqr = function isqr (a) {
-    return this.imul(a, a.clone());
-  };
+      return types.every(function (type, i) {
+        try {
+          return typeforce(type, values[i], strict)
+        } catch (e) {
+          throw tfSubError(e, i)
+        }
+      })
+    }
+    _tuple.toJSON = function () { return '(' + types.map(tfJSON).join(', ') + ')' }
 
-  Red.prototype.sqr = function sqr (a) {
-    return this.mul(a, a);
-  };
+    return _tuple
+  },
 
-  Red.prototype.sqrt = function sqrt (a) {
-    if (a.isZero()) return a.clone();
+  value: function value (expected) {
+    function _value (actual) {
+      return actual === expected
+    }
+    _value.toJSON = function () { return expected }
 
-    var mod3 = this.m.andln(3);
-    assert(mod3 % 2 === 1);
-
-    // Fast case
-    if (mod3 === 3) {
-      var pow = this.m.add(new BN(1)).iushrn(2);
-      return this.pow(a, pow);
-    }
-
-    // Tonelli-Shanks algorithm (Totally unoptimized and slow)
-    //
-    // Find Q and S, that Q * 2 ^ S = (P - 1)
-    var q = this.m.subn(1);
-    var s = 0;
-    while (!q.isZero() && q.andln(1) === 0) {
-      s++;
-      q.iushrn(1);
-    }
-    assert(!q.isZero());
-
-    var one = new BN(1).toRed(this);
-    var nOne = one.redNeg();
-
-    // Find quadratic non-residue
-    // NOTE: Max is such because of generalized Riemann hypothesis.
-    var lpow = this.m.subn(1).iushrn(1);
-    var z = this.m.bitLength();
-    z = new BN(2 * z * z).toRed(this);
+    return _value
+  }
+}
 
-    while (this.pow(z, lpow).cmp(nOne) !== 0) {
-      z.redIAdd(nOne);
-    }
+function compile (type) {
+  if (NATIVE.String(type)) {
+    if (type[0] === '?') return TYPES.maybe(type.slice(1))
 
-    var c = this.pow(z, q);
-    var r = this.pow(a, q.addn(1).iushrn(1));
-    var t = this.pow(a, q);
-    var m = s;
-    while (t.cmp(one) !== 0) {
-      var tmp = t;
-      for (var i = 0; tmp.cmp(one) !== 0; i++) {
-        tmp = tmp.redSqr();
-      }
-      assert(i < m);
-      var b = this.pow(c, new BN(1).iushln(m - i - 1));
+    return NATIVE[type] || TYPES.quacksLike(type)
+  } else if (type && NATIVE.Object(type)) {
+    if (NATIVE.Array(type)) return TYPES.arrayOf(type[0])
 
-      r = r.redMul(b);
-      c = b.redSqr();
-      t = t.redMul(c);
-      m = i;
-    }
+    return TYPES.object(type)
+  } else if (NATIVE.Function(type)) {
+    return type
+  }
 
-    return r;
-  };
+  return TYPES.value(type)
+}
 
-  Red.prototype.invm = function invm (a) {
-    var inv = a._invmp(this.m);
-    if (inv.negative !== 0) {
-      inv.negative = 0;
-      return this.imod(inv).redNeg();
-    } else {
-      return this.imod(inv);
-    }
-  };
+function typeforce (type, value, strict, surrogate) {
+  if (NATIVE.Function(type)) {
+    if (type(value, strict)) return true
 
-  Red.prototype.pow = function pow (a, num) {
-    if (num.isZero()) return new BN(1);
-    if (num.cmpn(1) === 0) return a.clone();
+    throw new TfTypeError(surrogate || type, value)
+  }
 
-    var windowSize = 4;
-    var wnd = new Array(1 << windowSize);
-    wnd[0] = new BN(1).toRed(this);
-    wnd[1] = a;
-    for (var i = 2; i < wnd.length; i++) {
-      wnd[i] = this.mul(wnd[i - 1], a);
-    }
+  // JIT
+  return typeforce(compile(type), value, strict)
+}
 
-    var res = wnd[0];
-    var current = 0;
-    var currentLen = 0;
-    var start = num.bitLength() % 26;
-    if (start === 0) {
-      start = 26;
-    }
+// assign types to typeforce function
+for (var typeName in NATIVE) {
+  typeforce[typeName] = NATIVE[typeName]
+}
 
-    for (i = num.length - 1; i >= 0; i--) {
-      var word = num.words[i];
-      for (var j = start - 1; j >= 0; j--) {
-        var bit = (word >> j) & 1;
-        if (res !== wnd[0]) {
-          res = this.sqr(res);
-        }
+for (typeName in TYPES) {
+  typeforce[typeName] = TYPES[typeName]
+}
 
-        if (bit === 0 && current === 0) {
-          currentLen = 0;
-          continue;
-        }
+var EXTRA = require('./extra')
+for (typeName in EXTRA) {
+  typeforce[typeName] = EXTRA[typeName]
+}
 
-        current <<= 1;
-        current |= bit;
-        currentLen++;
-        if (currentLen !== windowSize && (i !== 0 || j !== 0)) continue;
+// async wrapper
+function __async (type, value, strict, callback) {
+  // default to falsy strict if using shorthand overload
+  if (typeof strict === 'function') return __async(type, value, false, strict)
 
-        res = this.mul(res, wnd[current]);
-        currentLen = 0;
-        current = 0;
-      }
-      start = 26;
-    }
+  try {
+    typeforce(type, value, strict)
+  } catch (e) {
+    return callback(e)
+  }
 
-    return res;
-  };
+  callback()
+}
 
-  Red.prototype.convertTo = function convertTo (num) {
-    var r = num.umod(this.m);
+typeforce.async = __async
+typeforce.compile = compile
+typeforce.TfTypeError = TfTypeError
+typeforce.TfPropertyTypeError = TfPropertyTypeError
 
-    return r === num ? r.clone() : r;
-  };
+module.exports = typeforce
 
-  Red.prototype.convertFrom = function convertFrom (num) {
-    var res = num.clone();
-    res.red = null;
-    return res;
-  };
+},{"./errors":110,"./extra":111,"./native":113}],113:[function(require,module,exports){
+var types = {
+  Array: function (value) { return value !== null && value !== undefined && value.constructor === Array },
+  Boolean: function (value) { return typeof value === 'boolean' },
+  Function: function (value) { return typeof value === 'function' },
+  Nil: function (value) { return value === undefined || value === null },
+  Number: function (value) { return typeof value === 'number' },
+  Object: function (value) { return typeof value === 'object' },
+  String: function (value) { return typeof value === 'string' },
+  '': function () { return true }
+}
 
-  //
-  // Montgomery method engine
-  //
+// TODO: deprecate
+types.Null = types.Nil
 
-  BN.mont = function mont (num) {
-    return new Mont(num);
-  };
+for (var typeName in types) {
+  types[typeName].toJSON = function (t) {
+    return t
+  }.bind(null, typeName)
+}
 
-  function Mont (m) {
-    Red.call(this, m);
+module.exports = types
 
-    this.shift = this.m.bitLength();
-    if (this.shift % 26 !== 0) {
-      this.shift += 26 - (this.shift % 26);
-    }
+},{}],114:[function(require,module,exports){
+'use strict'
+var Buffer = require('safe-buffer').Buffer
 
-    this.r = new BN(1).iushln(this.shift);
-    this.r2 = this.imod(this.r.sqr());
-    this.rinv = this.r._invmp(this.m);
+// Number.MAX_SAFE_INTEGER
+var MAX_SAFE_INTEGER = 9007199254740991
 
-    this.minv = this.rinv.mul(this.r).isubn(1).div(this.m);
-    this.minv = this.minv.umod(this.r);
-    this.minv = this.r.sub(this.minv);
-  }
-  inherits(Mont, Red);
+function checkUInt53 (n) {
+  if (n < 0 || n > MAX_SAFE_INTEGER || n % 1 !== 0) throw new RangeError('value out of range')
+}
 
-  Mont.prototype.convertTo = function convertTo (num) {
-    return this.imod(num.ushln(this.shift));
-  };
+function encode (number, buffer, offset) {
+  checkUInt53(number)
 
-  Mont.prototype.convertFrom = function convertFrom (num) {
-    var r = this.imod(num.mul(this.rinv));
-    r.red = null;
-    return r;
-  };
+  if (!buffer) buffer = Buffer.allocUnsafe(encodingLength(number))
+  if (!Buffer.isBuffer(buffer)) throw new TypeError('buffer must be a Buffer instance')
+  if (!offset) offset = 0
 
-  Mont.prototype.imul = function imul (a, b) {
-    if (a.isZero() || b.isZero()) {
-      a.words[0] = 0;
-      a.length = 1;
-      return a;
-    }
+  // 8 bit
+  if (number < 0xfd) {
+    buffer.writeUInt8(number, offset)
+    encode.bytes = 1
 
-    var t = a.imul(b);
-    var c = t.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m);
-    var u = t.isub(c).iushrn(this.shift);
-    var res = u;
+  // 16 bit
+  } else if (number <= 0xffff) {
+    buffer.writeUInt8(0xfd, offset)
+    buffer.writeUInt16LE(number, offset + 1)
+    encode.bytes = 3
 
-    if (u.cmp(this.m) >= 0) {
-      res = u.isub(this.m);
-    } else if (u.cmpn(0) < 0) {
-      res = u.iadd(this.m);
-    }
+  // 32 bit
+  } else if (number <= 0xffffffff) {
+    buffer.writeUInt8(0xfe, offset)
+    buffer.writeUInt32LE(number, offset + 1)
+    encode.bytes = 5
 
-    return res._forceRed(this);
-  };
+  // 64 bit
+  } else {
+    buffer.writeUInt8(0xff, offset)
+    buffer.writeUInt32LE(number >>> 0, offset + 1)
+    buffer.writeUInt32LE((number / 0x100000000) | 0, offset + 5)
+    encode.bytes = 9
+  }
 
-  Mont.prototype.mul = function mul (a, b) {
-    if (a.isZero() || b.isZero()) return new BN(0)._forceRed(this);
+  return buffer
+}
 
-    var t = a.mul(b);
-    var c = t.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m);
-    var u = t.isub(c).iushrn(this.shift);
-    var res = u;
-    if (u.cmp(this.m) >= 0) {
-      res = u.isub(this.m);
-    } else if (u.cmpn(0) < 0) {
-      res = u.iadd(this.m);
-    }
+function decode (buffer, offset) {
+  if (!Buffer.isBuffer(buffer)) throw new TypeError('buffer must be a Buffer instance')
+  if (!offset) offset = 0
 
-    return res._forceRed(this);
-  };
+  var first = buffer.readUInt8(offset)
 
-  Mont.prototype.invm = function invm (a) {
-    // (AR)^-1 * R^2 = (A^-1 * R^-1) * R^2 = A^-1 * R
-    var res = this.imod(a._invmp(this.m).mul(this.r2));
-    return res._forceRed(this);
-  };
-})(typeof module === 'undefined' || module, this);
+  // 8 bit
+  if (first < 0xfd) {
+    decode.bytes = 1
+    return first
 
-},{}],82:[function(require,module,exports){
-var r;
+  // 16 bit
+  } else if (first === 0xfd) {
+    decode.bytes = 3
+    return buffer.readUInt16LE(offset + 1)
 
-module.exports = function rand(len) {
-  if (!r)
-    r = new Rand(null);
+  // 32 bit
+  } else if (first === 0xfe) {
+    decode.bytes = 5
+    return buffer.readUInt32LE(offset + 1)
 
-  return r.generate(len);
-};
+  // 64 bit
+  } else {
+    decode.bytes = 9
+    var lo = buffer.readUInt32LE(offset + 1)
+    var hi = buffer.readUInt32LE(offset + 5)
+    var number = hi * 0x0100000000 + lo
+    checkUInt53(number)
 
-function Rand(rand) {
-  this.rand = rand;
+    return number
+  }
 }
-module.exports.Rand = Rand;
-
-Rand.prototype.generate = function generate(len) {
-  return this._rand(len);
-};
-
-// Emulate crypto API using randy
-Rand.prototype._rand = function _rand(n) {
-  if (this.rand.getBytes)
-    return this.rand.getBytes(n);
-
-  var res = new Uint8Array(n);
-  for (var i = 0; i < res.length; i++)
-    res[i] = this.rand.getByte();
-  return res;
-};
-
-if (typeof self === 'object') {
-  if (self.crypto && self.crypto.getRandomValues) {
-    // Modern browsers
-    Rand.prototype._rand = function _rand(n) {
-      var arr = new Uint8Array(n);
-      self.crypto.getRandomValues(arr);
-      return arr;
-    };
-  } else if (self.msCrypto && self.msCrypto.getRandomValues) {
-    // IE
-    Rand.prototype._rand = function _rand(n) {
-      var arr = new Uint8Array(n);
-      self.msCrypto.getRandomValues(arr);
-      return arr;
-    };
 
-  // Safari's WebWorkers do not have `crypto`
-  } else if (typeof window === 'object') {
-    // Old junk
-    Rand.prototype._rand = function() {
-      throw new Error('Not implemented yet');
-    };
-  }
-} else {
-  // Node.js or Web worker with no crypto support
-  try {
-    var crypto = require('crypto');
-    if (typeof crypto.randomBytes !== 'function')
-      throw new Error('Not supported');
+function encodingLength (number) {
+  checkUInt53(number)
 
-    Rand.prototype._rand = function _rand(n) {
-      return crypto.randomBytes(n);
-    };
-  } catch (e) {
-  }
+  return (
+    number < 0xfd ? 1
+  : number <= 0xffff ? 3
+  : number <= 0xffffffff ? 5
+  : 9
+  )
 }
 
-},{"crypto":3}],83:[function(require,module,exports){
-var basex = require('base-x')
-var ALPHABET = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'
-
-module.exports = basex(ALPHABET)
+module.exports = { encode: encode, decode: decode, encodingLength: encodingLength }
 
-},{"base-x":35}],84:[function(require,module,exports){
+},{"safe-buffer":101}],115:[function(require,module,exports){
 (function (Buffer){
-'use strict'
-
-var base58 = require('bs58')
-
-module.exports = function (checksumFn) {
-  // Encode a buffer as a base58-check encoded string
-  function encode (payload) {
-    var checksum = checksumFn(payload)
-
-    return base58.encode(Buffer.concat([
-      payload,
-      checksum
-    ], payload.length + 4))
-  }
-
-  function decodeRaw (buffer) {
-    var payload = buffer.slice(0, -4)
-    var checksum = buffer.slice(-4)
-    var newChecksum = checksumFn(payload)
+var bs58check = require('bs58check')
 
-    if (checksum[0] ^ newChecksum[0] |
-        checksum[1] ^ newChecksum[1] |
-        checksum[2] ^ newChecksum[2] |
-        checksum[3] ^ newChecksum[3]) return
+function decodeRaw (buffer, version) {
+  // check version only if defined
+  if (version !== undefined && buffer[0] !== version) throw new Error('Invalid network version')
 
-    return payload
+  // uncompressed
+  if (buffer.length === 33) {
+    return {
+      version: buffer[0],
+      privateKey: buffer.slice(1, 33),
+      compressed: false
+    }
   }
 
-  // Decode a base58-check encoded string to a buffer, no result if checksum is wrong
-  function decodeUnsafe (string) {
-    var buffer = base58.decodeUnsafe(string)
-    if (!buffer) return
-
-    return decodeRaw(buffer)
-  }
+  // invalid length
+  if (buffer.length !== 34) throw new Error('Invalid WIF length')
 
-  function decode (string) {
-    var buffer = base58.decode(string)
-    var payload = decodeRaw(buffer, checksumFn)
-    if (!payload) throw new Error('Invalid checksum')
-    return payload
-  }
+  // invalid compression flag
+  if (buffer[33] !== 0x01) throw new Error('Invalid compression flag')
 
   return {
-    encode: encode,
-    decode: decode,
-    decodeUnsafe: decodeUnsafe
-  }
-}
-
-}).call(this,require("buffer").Buffer)
-},{"bs58":83,"buffer":5}],85:[function(require,module,exports){
-'use strict'
-
-var createHash = require('create-hash')
-var bs58checkBase = require('./base')
-
-// SHA256(SHA256(buffer))
-function sha256x2 (buffer) {
-  var tmp = createHash('sha256').update(buffer).digest()
-  return createHash('sha256').update(tmp).digest()
-}
-
-module.exports = bs58checkBase(sha256x2)
-
-},{"./base":84,"create-hash":87}],86:[function(require,module,exports){
-var Buffer = require('safe-buffer').Buffer
-var Transform = require('stream').Transform
-var StringDecoder = require('string_decoder').StringDecoder
-var inherits = require('inherits')
-
-function CipherBase (hashMode) {
-  Transform.call(this)
-  this.hashMode = typeof hashMode === 'string'
-  if (this.hashMode) {
-    this[hashMode] = this._finalOrDigest
-  } else {
-    this.final = this._finalOrDigest
-  }
-  if (this._final) {
-    this.__final = this._final
-    this._final = null
+    version: buffer[0],
+    privateKey: buffer.slice(1, 33),
+    compressed: true
   }
-  this._decoder = null
-  this._encoding = null
 }
-inherits(CipherBase, Transform)
 
-CipherBase.prototype.update = function (data, inputEnc, outputEnc) {
-  if (typeof data === 'string') {
-    data = Buffer.from(data, inputEnc)
-  }
+function encodeRaw (version, privateKey, compressed) {
+  var result = new Buffer(compressed ? 34 : 33)
 
-  var outData = this._update(data)
-  if (this.hashMode) return this
+  result.writeUInt8(version, 0)
+  privateKey.copy(result, 1)
 
-  if (outputEnc) {
-    outData = this._toString(outData, outputEnc)
+  if (compressed) {
+    result[33] = 0x01
   }
 
-  return outData
+  return result
 }
 
-CipherBase.prototype.setAutoPadding = function () {}
-CipherBase.prototype.getAuthTag = function () {
-  throw new Error('trying to get auth tag in unsupported state')
+function decode (string, version) {
+  return decodeRaw(bs58check.decode(string), version)
 }
 
-CipherBase.prototype.setAuthTag = function () {
-  throw new Error('trying to set auth tag in unsupported state')
+function encode (version, privateKey, compressed) {
+  if (typeof version === 'number') return bs58check.encode(encodeRaw(version, privateKey, compressed))
+
+  return bs58check.encode(
+    encodeRaw(
+      version.version,
+      version.privateKey,
+      version.compressed
+    )
+  )
 }
 
-CipherBase.prototype.setAAD = function () {
-  throw new Error('trying to set aad in unsupported state')
+module.exports = {
+  decode: decode,
+  decodeRaw: decodeRaw,
+  encode: encode,
+  encodeRaw: encodeRaw
 }
 
-CipherBase.prototype._transform = function (data, _, next) {
-  var err
-  try {
-    if (this.hashMode) {
-      this._update(data)
-    } else {
-      this.push(this._update(data))
-    }
-  } catch (e) {
-    err = e
-  } finally {
-    next(err)
-  }
-}
-CipherBase.prototype._flush = function (done) {
-  var err
-  try {
-    this.push(this.__final())
-  } catch (e) {
-    err = e
-  }
-
-  done(err)
-}
-CipherBase.prototype._finalOrDigest = function (outputEnc) {
-  var outData = this.__final() || Buffer.alloc(0)
-  if (outputEnc) {
-    outData = this._toString(outData, outputEnc, true)
-  }
-  return outData
-}
+}).call(this,require("buffer").Buffer)
+},{"bs58check":83,"buffer":5}]},{},[34])(34)
+});</script>
+        <script>bitcoinjs.bitcoin.networks.shadow = {
+  messagePrefix: 'unused',
+  bip32: {
+    public: 0xEE80286A,
+    private: 0xEE8031E8
+  },
+  pubKeyHash: 0x3f,
+  scriptHash: 0x7d,
+  wif: 0xbf
+};
 
-CipherBase.prototype._toString = function (value, enc, fin) {
-  if (!this._decoder) {
-    this._decoder = new StringDecoder(enc)
-    this._encoding = enc
-  }
+bitcoinjs.bitcoin.networks.shadowtn = {
+  messagePrefix: 'unused',
+  bip32: {
+    public: 0x76C0FDFB,
+    private: 0x76C1077A
+  },
+  pubKeyHash: 0x7f,
+  scriptHash: 0xc4,
+  wif: 0xff
+};
 
-  if (this._encoding !== enc) throw new Error('can\'t switch encodings')
+bitcoinjs.bitcoin.networks.clam = {
+  messagePrefix: 'unused',
+  bip32: {
+    public: 0xa8c26d64,
+    private: 0xa8c17826
+  },
+  pubKeyHash: 0x89,
+  scriptHash: 0x00, // TODO set this correctly
+  wif: 0x85
+};
 
-  var out = this._decoder.write(value)
-  if (fin) {
-    out += this._decoder.end()
-  }
+bitcoinjs.bitcoin.networks.crown = {
+  messagePrefix: 'unused',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4
+  },
+  pubKeyHash: 0x00,
+  scriptHash: 0x05,
+  wif: 0x80
+};
 
-  return out
-}
+bitcoinjs.bitcoin.networks.dash = {
+  messagePrefix: 'unused',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4
+  },
+  pubKeyHash: 0x4c,
+  scriptHash: 0x10,
+  wif: 0xcc
+};
 
-module.exports = CipherBase
+bitcoinjs.bitcoin.networks.maza = {
+  messagePrefix: 'unused',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4
+  },
+  pubKeyHash: 0x32,
+  scriptHash: 0x09,
+  wif: 0xe0
+};
 
-},{"inherits":121,"safe-buffer":128,"stream":28,"string_decoder":29}],87:[function(require,module,exports){
-(function (Buffer){
-'use strict'
-var inherits = require('inherits')
-var md5 = require('./md5')
-var RIPEMD160 = require('ripemd160')
-var sha = require('sha.js')
+bitcoinjs.bitcoin.networks.dashtn = {
+  messagePrefix: 'unused',
+  bip32: {
+    public: 0x043587cf,
+    private: 0x04358394
+  },
+  pubKeyHash: 0x8c,
+  scriptHash: 0x13,
+  wif: 0xef
+};
 
-var Base = require('cipher-base')
+bitcoinjs.bitcoin.networks.game = {
+  messagePrefix: 'unused',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4
+  },
+  pubKeyHash: 0x26,
+  scriptHash: 0x05,
+  wif: 0xa6
+};
 
-function HashNoConstructor (hash) {
-  Base.call(this, 'digest')
+bitcoinjs.bitcoin.networks.namecoin = {
+  messagePrefix: 'unused',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4
+  },
+  pubKeyHash: 0x34,
+  scriptHash: 0x00, // TODO set this correctly
+  wif: 0x80
+};
 
-  this._hash = hash
-  this.buffers = []
-}
+bitcoinjs.bitcoin.networks.peercoin = {
+  messagePrefix: 'unused',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4
+  },
+  pubKeyHash: 0x37,
+  scriptHash: 0x00, // TODO set this correctly
+  wif: 0xb7
+};
 
-inherits(HashNoConstructor, Base)
+bitcoinjs.bitcoin.networks.axe = {
+  messagePrefix: 'unused',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4
+  },
+  pubKeyHash: 0x37,
+  scriptHash: 0x10, // TODO set this correctly
+  wif: 0xcc
+};
 
-HashNoConstructor.prototype._update = function (data) {
-  this.buffers.push(data)
-}
+bitcoinjs.bitcoin.networks.slimcoin = {
+  messagePrefix: 'unused',
+  bip32: {
+    public: 0xef6adf10,
+    private: 0xef69ea80
+  },
+  pubKeyHash: 0x3f,
+  scriptHash: 0x7d,
+  wif: 0x46
+};
 
-HashNoConstructor.prototype._final = function () {
-  var buf = Buffer.concat(this.buffers)
-  var r = this._hash(buf)
-  this.buffers = null
+bitcoinjs.bitcoin.networks.slimcointn = {
+  messagePrefix: 'unused',
+  bip32: {
+    public: 0x043587CF,
+    private: 0x04358394
+  },
+  pubKeyHash: 0x6f,
+  scriptHash: 0xc4,
+  wif: 0x57
+};
 
-  return r
-}
+bitcoinjs.bitcoin.networks.dogecoin = {
+  messagePrefix: '\x19Dogecoin Signed Message:\n',
+  bip32: {
+    public: 0x02facafd,
+    private: 0x02fac398
+  },
+  pubKeyHash: 0x1e,
+  scriptHash: 0x16,
+  wif: 0x9e
+};
 
-function Hash (hash) {
-  Base.call(this, 'digest')
+bitcoinjs.bitcoin.networks.denarius = {
+  messagePrefix: '\x19Denarius Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4
+  },
+  pubKeyHash: 0x1e,
+  scriptHash: 0x5a,
+  wif: 0x9e
+};
 
-  this._hash = hash
-}
+bitcoinjs.bitcoin.networks.neblio = {
+  messagePrefix: '\x18Neblio Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4
+  },
+  pubKeyHash: 0x35,
+  scriptHash: 0x70,
+  wif: 0xb5
+};
 
-inherits(Hash, Base)
+bitcoinjs.bitcoin.networks.viacoin = {
+  messagePrefix: '\x18Viacoin Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4
+  },
+  pubKeyHash: 0x47,
+  scriptHash: 0x21,
+  wif: 0xc7
+};
 
-Hash.prototype._update = function (data) {
-  this._hash.update(data)
-}
+bitcoinjs.bitcoin.networks.viacointestnet = {
+  messagePrefix: '\x18Viacoin Signed Message:\n',
+  bip32: {
+    public: 0x043587cf,
+    private: 0x04358394
+  },
+  pubKeyHash: 0x7f,
+  scriptHash: 0xc4,
+  wif: 0xff
+};
 
-Hash.prototype._final = function () {
-  return this._hash.digest()
-}
+bitcoinjs.bitcoin.networks.gamerscoin = {
+  messagePrefix: '\x19Gamerscoin Signed Message:\n',
+  bip32: {
+    public: 0x019da462,
+    private: 0x019d9cfe
+  },
+  pubKeyHash: 0x26,
+  scriptHash: 0x05,
+  wif: 0xA6
+};
 
-module.exports = function createHash (alg) {
-  alg = alg.toLowerCase()
-  if (alg === 'md5') return new HashNoConstructor(md5)
-  if (alg === 'rmd160' || alg === 'ripemd160') return new Hash(new RIPEMD160())
+bitcoinjs.bitcoin.networks.jumbucks = {
+  messagePrefix: '\x19Jumbucks Signed Message:\n',
+  bip32: {
+    public: 0x037a689a,
+    private: 0x037a6460
+  },
+  pubKeyHash: 0x2b,
+  scriptHash: 0x05,
+  wif: 0xab
+};
 
-  return new Hash(sha(alg))
-}
+bitcoinjs.bitcoin.networks.zetacoin = {
+  messagePrefix: '\x18Zetacoin Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4
+  },
+  pubKeyHash: 0x50,
+  scriptHash: 0x09,
+  wif: 0xe0
+};
 
-}).call(this,require("buffer").Buffer)
-},{"./md5":89,"buffer":5,"cipher-base":86,"inherits":121,"ripemd160":127,"sha.js":130}],88:[function(require,module,exports){
-(function (Buffer){
-'use strict'
-var intSize = 4
-var zeroBuffer = new Buffer(intSize)
-zeroBuffer.fill(0)
+bitcoinjs.bitcoin.networks.myriadcoin = {
+  messagePrefix: 'unused',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4
+  },
+  pubKeyHash: 0x32,
+  scriptHash: 0x00, // TODO set this correctly
+  wif: 0xb2
+};
 
-var charSize = 8
-var hashSize = 16
 
-function toArray (buf) {
-  if ((buf.length % intSize) !== 0) {
-    var len = buf.length + (intSize - (buf.length % intSize))
-    buf = Buffer.concat([buf, zeroBuffer], len)
-  }
+bitcoinjs.bitcoin.networks.onixcoin = {
+    messagePrefix: 'unused',
+    bip32: {
+      public: 0x049d7cb2,
+      private: 0x049d7878
+    },
+    pubKeyHash: 0x4B,
+    scriptHash: 0x05,
+    wif: 0x80
+};
 
-  var arr = new Array(buf.length >>> 2)
-  for (var i = 0, j = 0; i < buf.length; i += intSize, j++) {
-    arr[j] = buf.readInt32LE(i)
-  }
+bitcoinjs.bitcoin.networks.pivx = {
+  messagePrefix: 'unused',
+  bip32: {
+    public: 0x022d2533,
+    private: 0x0221312b
+  },
+  pubKeyHash: 0x1e,
+  scriptHash: 0x0d,
+  wif: 0xd4
+};
 
-  return arr
-}
+bitcoinjs.bitcoin.networks.pivxtestnet = {
+  messagePrefix: 'unused',
+  bip32: {
+    public: 0x3a8061a0,
+    private: 0x3a805837
+  },
+  pubKeyHash: 0x8b,
+  scriptHash: 0x13,
+  wif: 0xef
+};
 
-module.exports = function hash (buf, fn) {
-  var arr = fn(toArray(buf), buf.length * charSize)
-  buf = new Buffer(hashSize)
-  for (var i = 0; i < arr.length; i++) {
-    buf.writeInt32LE(arr[i], i << 2, true)
-  }
-  return buf
-}
+bitcoinjs.bitcoin.networks.fujicoin = {
+  messagePrefix: '\x19FujiCoin Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4
+  },
+  pubKeyHash: 0x24,
+  scriptHash: 0x10,
+  wif: 0xa4
+};
 
-}).call(this,require("buffer").Buffer)
-},{"buffer":5}],89:[function(require,module,exports){
-'use strict'
-/*
- * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
- * Digest Algorithm, as defined in RFC 1321.
- * Version 2.1 Copyright (C) Paul Johnston 1999 - 2002.
- * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
- * Distributed under the BSD License
- * See http://pajhome.org.uk/crypt/md5 for more info.
- */
+bitcoinjs.bitcoin.networks.nubits = {
+  messagePrefix: '\x18Nu Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4
+  },
+  pubKeyHash: 0x19,
+  scriptHash: 0x1a,
+  wif: 0x96,
+};
 
-var makeHash = require('./make-hash')
+bitcoinjs.bitcoin.networks.bgold = {
+  messagePrefix: 'unused',
+    bip32: {
+      public: 0x0488b21e,
+      private: 0x0488ade4
+    },
+    pubKeyHash: 38,
+    scriptHash: 23,
+    wif: 128
+};
 
-/*
- * Calculate the MD5 of an array of little-endian words, and a bit length
- */
-function core_md5 (x, len) {
-  /* append padding */
-  x[len >> 5] |= 0x80 << ((len) % 32)
-  x[(((len + 64) >>> 9) << 4) + 14] = len
+bitcoinjs.bitcoin.networks.monacoin = {
+    messagePrefix: '\x18Monacoin Signed Message:\n',
+    bip32: {
+      public: 0x0488b21e,
+      private: 0x0488ade4
+    },
+    pubKeyHash: 0x32,
+    scriptHash: 0x37,
+    wif: 0xb0
+};
 
-  var a = 1732584193
-  var b = -271733879
-  var c = -1732584194
-  var d = 271733878
+bitcoinjs.bitcoin.networks.litecoinXprv = {
+    messagePrefix: '\x19Litecoin Signed Message:\n',
+    bip32: {
+      public: 0x0488b21e,
+      private: 0x0488ade4,
+    },
+    pubKeyHash: 0x30,
+    scriptHash: 0x32,
+    wif: 0xb0
+};
 
-  for (var i = 0; i < x.length; i += 16) {
-    var olda = a
-    var oldb = b
-    var oldc = c
-    var oldd = d
+bitcoinjs.bitcoin.networks.komodo = {
+  messagePrefix: '\x18Komodo Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4
+  },
+  pubKeyHash: 0x3c,
+  scriptHash: 0x55,
+  wif: 0xbc
+};
 
-    a = md5_ff(a, b, c, d, x[i + 0], 7, -680876936)
-    d = md5_ff(d, a, b, c, x[i + 1], 12, -389564586)
-    c = md5_ff(c, d, a, b, x[i + 2], 17, 606105819)
-    b = md5_ff(b, c, d, a, x[i + 3], 22, -1044525330)
-    a = md5_ff(a, b, c, d, x[i + 4], 7, -176418897)
-    d = md5_ff(d, a, b, c, x[i + 5], 12, 1200080426)
-    c = md5_ff(c, d, a, b, x[i + 6], 17, -1473231341)
-    b = md5_ff(b, c, d, a, x[i + 7], 22, -45705983)
-    a = md5_ff(a, b, c, d, x[i + 8], 7, 1770035416)
-    d = md5_ff(d, a, b, c, x[i + 9], 12, -1958414417)
-    c = md5_ff(c, d, a, b, x[i + 10], 17, -42063)
-    b = md5_ff(b, c, d, a, x[i + 11], 22, -1990404162)
-    a = md5_ff(a, b, c, d, x[i + 12], 7, 1804603682)
-    d = md5_ff(d, a, b, c, x[i + 13], 12, -40341101)
-    c = md5_ff(c, d, a, b, x[i + 14], 17, -1502002290)
-    b = md5_ff(b, c, d, a, x[i + 15], 22, 1236535329)
+bitcoinjs.bitcoin.networks.blackcoin = {
+  messagePrefix: '\x18BlackCoin Signed Message:\n',
+  bip32: {
+    public: 0x02CFBEDE,
+    private: 0x02CFBF60
+  },
+  pubKeyHash: 0x19,
+  scriptHash: 0x55,
+  wif: 0x99
+};
 
-    a = md5_gg(a, b, c, d, x[i + 1], 5, -165796510)
-    d = md5_gg(d, a, b, c, x[i + 6], 9, -1069501632)
-    c = md5_gg(c, d, a, b, x[i + 11], 14, 643717713)
-    b = md5_gg(b, c, d, a, x[i + 0], 20, -373897302)
-    a = md5_gg(a, b, c, d, x[i + 5], 5, -701558691)
-    d = md5_gg(d, a, b, c, x[i + 10], 9, 38016083)
-    c = md5_gg(c, d, a, b, x[i + 15], 14, -660478335)
-    b = md5_gg(b, c, d, a, x[i + 4], 20, -405537848)
-    a = md5_gg(a, b, c, d, x[i + 9], 5, 568446438)
-    d = md5_gg(d, a, b, c, x[i + 14], 9, -1019803690)
-    c = md5_gg(c, d, a, b, x[i + 3], 14, -187363961)
-    b = md5_gg(b, c, d, a, x[i + 8], 20, 1163531501)
-    a = md5_gg(a, b, c, d, x[i + 13], 5, -1444681467)
-    d = md5_gg(d, a, b, c, x[i + 2], 9, -51403784)
-    c = md5_gg(c, d, a, b, x[i + 7], 14, 1735328473)
-    b = md5_gg(b, c, d, a, x[i + 12], 20, -1926607734)
+bitcoinjs.bitcoin.networks.beetlecoin = {
+  messagePrefix: '\x19Beetlecoin Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4
+  },
+  pubKeyHash: 0x1A,
+  scriptHash: 0x55,
+  wif: 0x99,
+};
 
-    a = md5_hh(a, b, c, d, x[i + 5], 4, -378558)
-    d = md5_hh(d, a, b, c, x[i + 8], 11, -2022574463)
-    c = md5_hh(c, d, a, b, x[i + 11], 16, 1839030562)
-    b = md5_hh(b, c, d, a, x[i + 14], 23, -35309556)
-    a = md5_hh(a, b, c, d, x[i + 1], 4, -1530992060)
-    d = md5_hh(d, a, b, c, x[i + 4], 11, 1272893353)
-    c = md5_hh(c, d, a, b, x[i + 7], 16, -155497632)
-    b = md5_hh(b, c, d, a, x[i + 10], 23, -1094730640)
-    a = md5_hh(a, b, c, d, x[i + 13], 4, 681279174)
-    d = md5_hh(d, a, b, c, x[i + 0], 11, -358537222)
-    c = md5_hh(c, d, a, b, x[i + 3], 16, -722521979)
-    b = md5_hh(b, c, d, a, x[i + 6], 23, 76029189)
-    a = md5_hh(a, b, c, d, x[i + 9], 4, -640364487)
-    d = md5_hh(d, a, b, c, x[i + 12], 11, -421815835)
-    c = md5_hh(c, d, a, b, x[i + 15], 16, 530742520)
-    b = md5_hh(b, c, d, a, x[i + 2], 23, -995338651)
 
-    a = md5_ii(a, b, c, d, x[i + 0], 6, -198630844)
-    d = md5_ii(d, a, b, c, x[i + 7], 10, 1126891415)
-    c = md5_ii(c, d, a, b, x[i + 14], 15, -1416354905)
-    b = md5_ii(b, c, d, a, x[i + 5], 21, -57434055)
-    a = md5_ii(a, b, c, d, x[i + 12], 6, 1700485571)
-    d = md5_ii(d, a, b, c, x[i + 3], 10, -1894986606)
-    c = md5_ii(c, d, a, b, x[i + 10], 15, -1051523)
-    b = md5_ii(b, c, d, a, x[i + 1], 21, -2054922799)
-    a = md5_ii(a, b, c, d, x[i + 8], 6, 1873313359)
-    d = md5_ii(d, a, b, c, x[i + 15], 10, -30611744)
-    c = md5_ii(c, d, a, b, x[i + 6], 15, -1560198380)
-    b = md5_ii(b, c, d, a, x[i + 13], 21, 1309151649)
-    a = md5_ii(a, b, c, d, x[i + 4], 6, -145523070)
-    d = md5_ii(d, a, b, c, x[i + 11], 10, -1120210379)
-    c = md5_ii(c, d, a, b, x[i + 2], 15, 718787259)
-    b = md5_ii(b, c, d, a, x[i + 9], 21, -343485551)
+bitcoinjs.bitcoin.networks.adcoin = {
+  messagePrefix: '\x18AdCoin Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x17,
+  scriptHash: 0x05,
+  wif: 0xb0,
+};
 
-    a = safe_add(a, olda)
-    b = safe_add(b, oldb)
-    c = safe_add(c, oldc)
-    d = safe_add(d, oldd)
-  }
+bitcoinjs.bitcoin.networks.asiacoin = {
+  messagePrefix: '\x18AsiaCoin Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4,
+  },
+  pubKeyHash: 0x17,
+  scriptHash: 0x08,
+  wif: 0x97,
+};
 
-  return [a, b, c, d]
-}
+bitcoinjs.bitcoin.networks.auroracoin = {
+  messagePrefix: '\x18AuroraCoin Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4,
+  },
+  pubKeyHash: 0x17,
+  scriptHash: 0x05,
+  wif: 0x97,
+};
 
-/*
- * These functions implement the four basic operations the algorithm uses.
- */
-function md5_cmn (q, a, b, x, s, t) {
-  return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s), b)
-}
+bitcoinjs.bitcoin.networks.bata = {
+  messagePrefix: '\x18Bata Signed Message:\n',
+  bip32: {
+    public: 0xA40C86FA,
+    private: 0xA40B91BD,
+  },
+  pubKeyHash: 0x19,
+  scriptHash: 0x05,
+  wif: 0xa4,
+};
 
-function md5_ff (a, b, c, d, x, s, t) {
-  return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t)
-}
+bitcoinjs.bitcoin.networks.belacoin = {
+  messagePrefix: '\x18BelaCoin Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4,
+  },
+  pubKeyHash: 0x19,
+  scriptHash: 0x05,
+  wif: 0x99,
+};
 
-function md5_gg (a, b, c, d, x, s, t) {
-  return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t)
-}
+bitcoinjs.bitcoin.networks.atom = {
+  messagePrefix: '\x18Bitcoin Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x17,
+  scriptHash: 0x0a,
+  wif: 0x80,
+};
 
-function md5_hh (a, b, c, d, x, s, t) {
-  return md5_cmn(b ^ c ^ d, a, b, x, s, t)
-}
+bitcoinjs.bitcoin.networks.bitcoinplus = {
+  messagePrefix: '\x18BitcoinPlus Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4,
+  },
+  pubKeyHash: 0x19,
+  scriptHash: 0x08,
+  wif: 0x99,
+};
 
-function md5_ii (a, b, c, d, x, s, t) {
-  return md5_cmn(c ^ (b | (~d)), a, b, x, s, t)
-}
+bitcoinjs.bitcoin.networks.bitcore = {
+  messagePrefix: '\x18BitCore Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x00,
+  scriptHash: 0x05,
+  wif: 0x80,
+};
 
-/*
- * Add integers, wrapping at 2^32. This uses 16-bit operations internally
- * to work around bugs in some JS interpreters.
- */
-function safe_add (x, y) {
-  var lsw = (x & 0xFFFF) + (y & 0xFFFF)
-  var msw = (x >> 16) + (y >> 16) + (lsw >> 16)
-  return (msw << 16) | (lsw & 0xFFFF)
-}
+bitcoinjs.bitcoin.networks.bitsend = {
+  messagePrefix: '\x18Bitsend Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x66,
+  scriptHash: 0x05,
+  wif: 0xcc,
+};
 
-/*
- * Bitwise rotate a 32-bit number to the left.
- */
-function bit_rol (num, cnt) {
-  return (num << cnt) | (num >>> (32 - cnt))
-}
+bitcoinjs.bitcoin.networks.britcoin = {
+  messagePrefix: '\x18BritCoin Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4,
+  },
+  pubKeyHash: 0x19,
+  scriptHash: 0x55,
+  wif: 0x99,
+};
 
-module.exports = function md5 (buf) {
-  return makeHash(buf, core_md5)
-}
+bitcoinjs.bitcoin.networks.canadaecoin = {
+  messagePrefix: '\x18Canada eCoin Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4,
+  },
+  pubKeyHash: 0x1c,
+  scriptHash: 0x05,
+  wif: 0x9c,
+};
 
-},{"./make-hash":88}],90:[function(require,module,exports){
-'use strict'
-var inherits = require('inherits')
-var Legacy = require('./legacy')
-var Base = require('cipher-base')
-var Buffer = require('safe-buffer').Buffer
-var md5 = require('create-hash/md5')
-var RIPEMD160 = require('ripemd160')
+bitcoinjs.bitcoin.networks.cannacoin = {
+  messagePrefix: '\x18Cannacoin Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4,
+  },
+  pubKeyHash: 0x1c,
+  scriptHash: 0x05,
+  wif: 0x9c,
+};
 
-var sha = require('sha.js')
+bitcoinjs.bitcoin.networks.clubcoin = {
+  messagePrefix: '\x18ClubCoin Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x1c,
+  scriptHash: 0x55,
+  wif: 0x99,
+};
 
-var ZEROS = Buffer.alloc(128)
+bitcoinjs.bitcoin.networks.compcoin = {
+  messagePrefix: '\x18CompCoin Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4,
+  },
+  pubKeyHash: 0x1c,
+  scriptHash: 0x55,
+  wif: 0x9c,
+};
 
-function Hmac (alg, key) {
-  Base.call(this, 'digest')
-  if (typeof key === 'string') {
-    key = Buffer.from(key)
-  }
+bitcoinjs.bitcoin.networks.crave = {
+  messagePrefix: '\x18DarkNet Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x46,
+  scriptHash: 0x55,
+  wif: 0x99,
+};
 
-  var blocksize = (alg === 'sha512' || alg === 'sha384') ? 128 : 64
+bitcoinjs.bitcoin.networks.defcoin = {
+  messagePrefix: '\x18defcoin Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4,
+  },
+  pubKeyHash: 0x1e,
+  scriptHash: 0x05,
+  wif: 0x9e,
+};
 
-  this._alg = alg
-  this._key = key
-  if (key.length > blocksize) {
-    var hash = alg === 'rmd160' ? new RIPEMD160() : sha(alg)
-    key = hash.update(key).digest()
-  } else if (key.length < blocksize) {
-    key = Buffer.concat([key, ZEROS], blocksize)
-  }
+bitcoinjs.bitcoin.networks.diamond = {
+  messagePrefix: '\x18Diamond Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x5a,
+  scriptHash: 0x08,
+  wif: 0xda,
+};
 
-  var ipad = this._ipad = Buffer.allocUnsafe(blocksize)
-  var opad = this._opad = Buffer.allocUnsafe(blocksize)
+bitcoinjs.bitcoin.networks.digibyte = {
+  messagePrefix: '\x18DigiByte Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x1e,
+  scriptHash: 0x05,
+  wif: 0x80,
+};
 
-  for (var i = 0; i < blocksize; i++) {
-    ipad[i] = key[i] ^ 0x36
-    opad[i] = key[i] ^ 0x5C
-  }
-  this._hash = alg === 'rmd160' ? new RIPEMD160() : sha(alg)
-  this._hash.update(ipad)
-}
+bitcoinjs.bitcoin.networks.digitalcoin = {
+  messagePrefix: '\x18Digitalcoin Signed Message:\n',
+  bip32: {
+    public: 0x9e0488B2,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x1e,
+  scriptHash: 0x05,
+  wif: 0x9e,
+};
 
-inherits(Hmac, Base)
+bitcoinjs.bitcoin.networks.ecoin = {
+  messagePrefix: '\x18eCoin Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4,
+  },
+  pubKeyHash: 0x5c,
+  scriptHash: 0x14,
+  wif: 0xdc,
+};
 
-Hmac.prototype._update = function (data) {
-  this._hash.update(data)
-}
+bitcoinjs.bitcoin.networks.edrcoin = {
+  messagePrefix: '\x18EDRcoin Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4,
+  },
+  pubKeyHash: 0x5d,
+  scriptHash: 0x1c,
+  wif: 0xdd,
+};
 
-Hmac.prototype._final = function () {
-  var h = this._hash.digest()
-  var hash = this._alg === 'rmd160' ? new RIPEMD160() : sha(this._alg)
-  return hash.update(this._opad).update(h).digest()
-}
+bitcoinjs.bitcoin.networks.egulden = {
+  messagePrefix: '\x18Egulden Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x30,
+  scriptHash: 0x05,
+  wif: 0xb0,
+};
 
-module.exports = function createHmac (alg, key) {
-  alg = alg.toLowerCase()
-  if (alg === 'rmd160' || alg === 'ripemd160') {
-    return new Hmac('rmd160', key)
-  }
-  if (alg === 'md5') {
-    return new Legacy(md5, key)
-  }
-  return new Hmac(alg, key)
-}
+bitcoinjs.bitcoin.networks.einsteinium = {
+  messagePrefix: '\x18Einsteinium Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4,
+  },
+  pubKeyHash: 0x21,
+  scriptHash: 0x05,
+  wif: 0xa1,
+};
 
-},{"./legacy":91,"cipher-base":86,"create-hash/md5":89,"inherits":121,"ripemd160":127,"safe-buffer":128,"sha.js":130}],91:[function(require,module,exports){
-'use strict'
-var inherits = require('inherits')
-var Buffer = require('safe-buffer').Buffer
+bitcoinjs.bitcoin.networks.europecoin = {
+  messagePrefix: '\x18Bitcoin Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x21,
+  scriptHash: 0x05,
+  wif: 0xa8,
+};
 
-var Base = require('cipher-base')
+bitcoinjs.bitcoin.networks.exclusivecoin = {
+  messagePrefix: '\x18ExclusiveCoin Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x21,
+  scriptHash: 0x89,
+  wif: 0xa1,
+};
 
-var ZEROS = Buffer.alloc(128)
-var blocksize = 64
+bitcoinjs.bitcoin.networks.feathercoin = {
+  messagePrefix: '\x18Feathercoin Signed Message:\n',
+  bip32: {
+    public: 0x0488BC26,
+    private: 0x0488DAEE,
+  },
+  pubKeyHash: 0x0e,
+  scriptHash: 0x05,
+  wif: 0x8e,
+};
 
-function Hmac (alg, key) {
-  Base.call(this, 'digest')
-  if (typeof key === 'string') {
-    key = Buffer.from(key)
-  }
+bitcoinjs.bitcoin.networks.firstcoin = {
+  messagePrefix: '\x18FirstCoin Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4,
+  },
+  pubKeyHash: 0x23,
+  scriptHash: 0x05,
+  wif: 0xa3,
+};
 
-  this._alg = alg
-  this._key = key
+bitcoinjs.bitcoin.networks.flashcoin = {
+  messagePrefix: '\x18Flashcoin Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4,
+  },
+  pubKeyHash: 0x44,
+  scriptHash: 0x82,
+  wif: 0xc4,
+};
 
-  if (key.length > blocksize) {
-    key = alg(key)
-  } else if (key.length < blocksize) {
-    key = Buffer.concat([key, ZEROS], blocksize)
-  }
+bitcoinjs.bitcoin.networks.gcr = {
+  messagePrefix: '\x18GCR Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x26,
+  scriptHash: 0x61,
+  wif: 0x9a,
+};
 
-  var ipad = this._ipad = Buffer.allocUnsafe(blocksize)
-  var opad = this._opad = Buffer.allocUnsafe(blocksize)
+bitcoinjs.bitcoin.networks.gobyte = {
+  messagePrefix: '\x18DarkCoin Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x26,
+  scriptHash: 0x0a,
+  wif: 0xc6,
+};
 
-  for (var i = 0; i < blocksize; i++) {
-    ipad[i] = key[i] ^ 0x36
-    opad[i] = key[i] ^ 0x5C
-  }
+bitcoinjs.bitcoin.networks.gridcoin = {
+  messagePrefix: '\x18Gridcoin Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4,
+  },
+  pubKeyHash: 0x3e,
+  scriptHash: 0x55,
+  wif: 0xbe,
+};
 
-  this._hash = [ipad]
-}
+bitcoinjs.bitcoin.networks.gulden = {
+  messagePrefix: '\x18Guldencoin Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x26,
+  scriptHash: 0x62,
+  wif: 0x62,
+};
 
-inherits(Hmac, Base)
+bitcoinjs.bitcoin.networks.helleniccoin = {
+  messagePrefix: '\x18helleniccoin Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4,
+  },
+  pubKeyHash: 0x30,
+  scriptHash: 0x05,
+  wif: 0xb0,
+};
 
-Hmac.prototype._update = function (data) {
-  this._hash.push(data)
-}
+bitcoinjs.bitcoin.networks.hempcoin = {
+  messagePrefix: '\x18Hempcoin Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4,
+  },
+  pubKeyHash: 0x28,
+  scriptHash: 0x08,
+  wif: 0xa8,
+};
 
-Hmac.prototype._final = function () {
-  var h = this._alg(Buffer.concat(this._hash))
-  return this._alg(Buffer.concat([this._opad, h]))
-}
-module.exports = Hmac
+bitcoinjs.bitcoin.networks.insane = {
+  messagePrefix: '\x18INSaNe Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x66,
+  scriptHash: 0x39,
+  wif: 0x37,
+};
 
-},{"cipher-base":86,"inherits":121,"safe-buffer":128}],92:[function(require,module,exports){
-var assert = require('assert')
-var BigInteger = require('bigi')
+bitcoinjs.bitcoin.networks.iop = {
+  messagePrefix: '\x18IoP Signed Message:\n',
+  bip32: {
+    public: 0x2780915F,
+    private: 0xAE3416F6,
+  },
+  pubKeyHash: 0x75,
+  scriptHash: 0xae,
+  wif: 0x31,
+};
 
-var Point = require('./point')
+bitcoinjs.bitcoin.networks.ixcoin = {
+  messagePrefix: '\x18Ixcoin Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x8a,
+  scriptHash: 0x05,
+  wif: 0x80,
+};
 
-function Curve (p, a, b, Gx, Gy, n, h) {
-  this.p = p
-  this.a = a
-  this.b = b
-  this.G = Point.fromAffine(this, Gx, Gy)
-  this.n = n
-  this.h = h
+bitcoinjs.bitcoin.networks.kobocoin = {
+  messagePrefix: '\x18Kobocoin Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x23,
+  scriptHash: 0x1c,
+  wif: 0xa3,
+};
 
-  this.infinity = new Point(this, null, null, BigInteger.ZERO)
+bitcoinjs.bitcoin.networks.landcoin = {
+  messagePrefix: '\x18Landcoin Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x30,
+  scriptHash: 0x7a,
+  wif: 0xb0,
+};
 
-  // result caching
-  this.pOverFour = p.add(BigInteger.ONE).shiftRight(2)
+bitcoinjs.bitcoin.networks.lbry = {
+  messagePrefix: '\x18LBRYcrd Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x55,
+  scriptHash: 0x7a,
+  wif: 0x1c,
+};
 
-  // determine size of p in bytes
-  this.pLength = Math.floor((this.p.bitLength() + 7) / 8)
-}
+bitcoinjs.bitcoin.networks.linx = {
+  messagePrefix: '\x18LinX Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4,
+  },
+  pubKeyHash: 0x4b,
+  scriptHash: 0x05,
+  wif: 0xcb,
+};
 
-Curve.prototype.pointFromX = function (isOdd, x) {
-  var alpha = x.pow(3).add(this.a.multiply(x)).add(this.b).mod(this.p)
-  var beta = alpha.modPow(this.pOverFour, this.p) // XXX: not compatible with all curves
+bitcoinjs.bitcoin.networks.litecoincash = {
+  messagePrefix: '\x18Litecoin Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x1c,
+  scriptHash: 0x05,
+  wif: 0xb0,
+};
 
-  var y = beta
-  if (beta.isEven() ^ !isOdd) {
-    y = this.p.subtract(y) // -y % p
-  }
+bitcoinjs.bitcoin.networks.lynx = {
+  messagePrefix: '\x18Lynx Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x2d,
+  scriptHash: 0x32,
+  wif: 0xad,
+};
 
-  return Point.fromAffine(this, x, y)
-}
+bitcoinjs.bitcoin.networks.minexcoin = {
+  messagePrefix: '\x18Bitcoin Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x4b,
+  scriptHash: 0x05,
+  wif: 0x80,
+};
 
-Curve.prototype.isInfinity = function (Q) {
-  if (Q === this.infinity) return true
+bitcoinjs.bitcoin.networks.navcoin = {
+  messagePrefix: '\x18Navcoin Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x35,
+  scriptHash: 0x55,
+  wif: 0x96,
+};
 
-  return Q.z.signum() === 0 && Q.y.signum() !== 0
-}
+bitcoinjs.bitcoin.networks.neoscoin = {
+  messagePrefix: '\x18NeosCoin Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x35,
+  scriptHash: 0x05,
+  wif: 0xb1,
+};
 
-Curve.prototype.isOnCurve = function (Q) {
-  if (this.isInfinity(Q)) return true
+bitcoinjs.bitcoin.networks.neurocoin = {
+  messagePrefix: '\x18PPCoin Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x35,
+  scriptHash: 0x75,
+  wif: 0xb5,
+};
 
-  var x = Q.affineX
-  var y = Q.affineY
-  var a = this.a
-  var b = this.b
-  var p = this.p
+bitcoinjs.bitcoin.networks.newyorkc = {
+  messagePrefix: '\x18newyorkc Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4,
+  },
+  pubKeyHash: 0x3c,
+  scriptHash: 0x16,
+  wif: 0xbc,
+};
 
-  // Check that xQ and yQ are integers in the interval [0, p - 1]
-  if (x.signum() < 0 || x.compareTo(p) >= 0) return false
-  if (y.signum() < 0 || y.compareTo(p) >= 0) return false
+bitcoinjs.bitcoin.networks.novacoin = {
+  messagePrefix: '\x18NovaCoin Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4,
+  },
+  pubKeyHash: 0x08,
+  scriptHash: 0x14,
+  wif: 0x88,
+};
 
-  // and check that y^2 = x^3 + ax + b (mod p)
-  var lhs = y.square().mod(p)
-  var rhs = x.pow(3).add(a.multiply(x)).add(b).mod(p)
-  return lhs.equals(rhs)
-}
+bitcoinjs.bitcoin.networks.nushares = {
+  messagePrefix: '\x18Nu Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4,
+  },
+  pubKeyHash: 0x3f,
+  scriptHash: 0x40,
+  wif: 0x95,
+};
 
-/**
- * Validate an elliptic curve point.
- *
- * See SEC 1, section 3.2.2.1: Elliptic Curve Public Key Validation Primitive
- */
-Curve.prototype.validate = function (Q) {
-  // Check Q != O
-  assert(!this.isInfinity(Q), 'Point is at infinity')
-  assert(this.isOnCurve(Q), 'Point is not on the curve')
+bitcoinjs.bitcoin.networks.okcash = {
+  messagePrefix: '\x18OKCash Signed Message:\n',
+  bip32: {
+    public: 0x03CC23D7,
+    private: 0x03CC1C73,
+  },
+  pubKeyHash: 0x37,
+  scriptHash: 0x1c,
+  wif: 0x03,
+};
 
-  // Check nQ = O (where Q is a scalar multiple of G)
-  var nQ = Q.multiply(this.n)
-  assert(this.isInfinity(nQ), 'Point is not a scalar multiple of G')
+bitcoinjs.bitcoin.networks.omnicore = {
+  messagePrefix: '\x18Bitcoin Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x00,
+  scriptHash: 0x05,
+  wif: 0x80,
+};
 
-  return true
-}
+bitcoinjs.bitcoin.networks.pesobit = {
+  messagePrefix: '\x18Pesobit Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4,
+  },
+  pubKeyHash: 0x37,
+  scriptHash: 0x55,
+  wif: 0xb7,
+};
 
-module.exports = Curve
+bitcoinjs.bitcoin.networks.pinkcoin = {
+  messagePrefix: '\x18Pinkcoin Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4,
+  },
+  pubKeyHash: 0x03,
+  scriptHash: 0x1c,
+  wif: 0x83,
+};
 
-},{"./point":96,"assert":1,"bigi":39}],93:[function(require,module,exports){
-module.exports={
-  "secp128r1": {
-    "p": "fffffffdffffffffffffffffffffffff",
-    "a": "fffffffdfffffffffffffffffffffffc",
-    "b": "e87579c11079f43dd824993c2cee5ed3",
-    "n": "fffffffe0000000075a30d1b9038a115",
-    "h": "01",
-    "Gx": "161ff7528b899b2d0c28607ca52c5b86",
-    "Gy": "cf5ac8395bafeb13c02da292dded7a83"
+bitcoinjs.bitcoin.networks.poswcoin = {
+  messagePrefix: '\x18Poswcoin Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4,
   },
-  "secp160k1": {
-    "p": "fffffffffffffffffffffffffffffffeffffac73",
-    "a": "00",
-    "b": "07",
-    "n": "0100000000000000000001b8fa16dfab9aca16b6b3",
-    "h": "01",
-    "Gx": "3b4c382ce37aa192a4019e763036f4f5dd4d7ebb",
-    "Gy": "938cf935318fdced6bc28286531733c3f03c4fee"
+  pubKeyHash: 0x37,
+  scriptHash: 0x55,
+  wif: 0xb7,
+};
+
+bitcoinjs.bitcoin.networks.potcoin = {
+  messagePrefix: '\x18Potcoin Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4,
   },
-  "secp160r1": {
-    "p": "ffffffffffffffffffffffffffffffff7fffffff",
-    "a": "ffffffffffffffffffffffffffffffff7ffffffc",
-    "b": "1c97befc54bd7a8b65acf89f81d4d4adc565fa45",
-    "n": "0100000000000000000001f4c8f927aed3ca752257",
-    "h": "01",
-    "Gx": "4a96b5688ef573284664698968c38bb913cbfc82",
-    "Gy": "23a628553168947d59dcc912042351377ac5fb32"
+  pubKeyHash: 0x37,
+  scriptHash: 0x05,
+  wif: 0xb7,
+};
+
+bitcoinjs.bitcoin.networks.putincoin = {
+  messagePrefix: '\x18PutinCoin Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4,
   },
-  "secp192k1": {
-    "p": "fffffffffffffffffffffffffffffffffffffffeffffee37",
-    "a": "00",
-    "b": "03",
-    "n": "fffffffffffffffffffffffe26f2fc170f69466a74defd8d",
-    "h": "01",
-    "Gx": "db4ff10ec057e9ae26b07d0280b7f4341da5d1b1eae06c7d",
-    "Gy": "9b2f2f6d9c5628a7844163d015be86344082aa88d95e2f9d"
+  pubKeyHash: 0x37,
+  scriptHash: 0x14,
+  wif: 0xb7,
+};
+
+bitcoinjs.bitcoin.networks.reddcoin = {
+  messagePrefix: '\x18Reddcoin Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
   },
-  "secp192r1": {
-    "p": "fffffffffffffffffffffffffffffffeffffffffffffffff",
-    "a": "fffffffffffffffffffffffffffffffefffffffffffffffc",
-    "b": "64210519e59c80e70fa7e9ab72243049feb8deecc146b9b1",
-    "n": "ffffffffffffffffffffffff99def836146bc9b1b4d22831",
-    "h": "01",
-    "Gx": "188da80eb03090f67cbf20eb43a18800f4ff0afd82ff1012",
-    "Gy": "07192b95ffc8da78631011ed6b24cdd573f977a11e794811"
+  pubKeyHash: 0x3d,
+  scriptHash: 0x05,
+  wif: 0xbd,
+};
+
+bitcoinjs.bitcoin.networks.revolutionvr = {
+  messagePrefix: '\x18Voxels Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
   },
-  "secp256k1": {
-    "p": "fffffffffffffffffffffffffffffffffffffffffffffffffffffffefffffc2f",
-    "a": "00",
-    "b": "07",
-    "n": "fffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141",
-    "h": "01",
-    "Gx": "79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798",
-    "Gy": "483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8"
+  pubKeyHash: 0x46,
+  scriptHash: 0x05,
+  wif: 0xc6,
+};
+
+bitcoinjs.bitcoin.networks.rubycoin = {
+  messagePrefix: '\x18Rubycoin Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
   },
-  "secp256r1": {
-    "p": "ffffffff00000001000000000000000000000000ffffffffffffffffffffffff",
-    "a": "ffffffff00000001000000000000000000000000fffffffffffffffffffffffc",
-    "b": "5ac635d8aa3a93e7b3ebbd55769886bc651d06b0cc53b0f63bce3c3e27d2604b",
-    "n": "ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632551",
-    "h": "01",
-    "Gx": "6b17d1f2e12c4247f8bce6e563a440f277037d812deb33a0f4a13945d898c296",
-    "Gy": "4fe342e2fe1a7f9b8ee7eb4a7c0f9e162bce33576b315ececbb6406837bf51f5"
-  }
-}
+  pubKeyHash: 0x3c,
+  scriptHash: 0x55,
+  wif: 0xbc,
+};
 
-},{}],94:[function(require,module,exports){
-var Point = require('./point')
-var Curve = require('./curve')
+bitcoinjs.bitcoin.networks.smileycoin = {
+  messagePrefix: '\x18Smileycoin Signed Message:\n',
+  bip32: {
+    public: 0x1E562D9A,
+    private: 0x1E5631BC,
+  },
+  pubKeyHash: 0x19,
+  scriptHash: 0x05,
+  wif: 0x05,
+};
 
-var getCurveByName = require('./names')
+bitcoinjs.bitcoin.networks.solarcoin = {
+  messagePrefix: '\x18SolarCoin Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4,
+  },
+  pubKeyHash: 0x12,
+  scriptHash: 0x05,
+  wif: 0x92,
+};
 
-module.exports = {
-  Curve: Curve,
-  Point: Point,
-  getCurveByName: getCurveByName
-}
+bitcoinjs.bitcoin.networks.stratis = {
+  messagePrefix: '\x18Stratis Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x3f,
+  scriptHash: 0x7d,
+  wif: 0xbf,
+};
 
-},{"./curve":92,"./names":95,"./point":96}],95:[function(require,module,exports){
-var BigInteger = require('bigi')
+bitcoinjs.bitcoin.networks.syscoin = {
+  messagePrefix: '\x18Syscoin Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x3f,
+  scriptHash: 0x05,
+  wif: 0xbf,
+};
 
-var curves = require('./curves.json')
-var Curve = require('./curve')
 
-function getCurveByName (name) {
-  var curve = curves[name]
-  if (!curve) return null
+bitcoinjs.bitcoin.networks.toa = {
+  messagePrefix: '\x18TOA Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4,
+  },
+  pubKeyHash: 0x41,
+  scriptHash: 0x17,
+  wif: 0xc1,
+};
 
-  var p = new BigInteger(curve.p, 16)
-  var a = new BigInteger(curve.a, 16)
-  var b = new BigInteger(curve.b, 16)
-  var n = new BigInteger(curve.n, 16)
-  var h = new BigInteger(curve.h, 16)
-  var Gx = new BigInteger(curve.Gx, 16)
-  var Gy = new BigInteger(curve.Gy, 16)
+bitcoinjs.bitcoin.networks.ultimatesecurecash = {
+  messagePrefix: '\x18UltimateSecureCash Signed Message:\n',
+  bip32: {
+    public: 0xEE80286A,
+    private: 0xEE8031E8,
+  },
+  pubKeyHash: 0x44,
+  scriptHash: 0x7d,
+  wif: 0xbf,
+};
 
-  return new Curve(p, a, b, Gx, Gy, n, h)
-}
+bitcoinjs.bitcoin.networks.unobtanium = {
+  messagePrefix: '\x18Unobtanium Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x82,
+  scriptHash: 0x1e,
+  wif: 0xe0,
+};
 
-module.exports = getCurveByName
+bitcoinjs.bitcoin.networks.vcash = {
+  messagePrefix: '\x18Vcash Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4,
+  },
+  pubKeyHash: 0x47,
+  scriptHash: 0x08,
+  wif: 0xc7,
+};
 
-},{"./curve":92,"./curves.json":93,"bigi":39}],96:[function(require,module,exports){
-(function (Buffer){
-var assert = require('assert')
-var BigInteger = require('bigi')
+bitcoinjs.bitcoin.networks.verge = {
+  messagePrefix: '\x18VERGE Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4,
+  },
+  pubKeyHash: 0x1e,
+  scriptHash: 0x21,
+  wif: 0x9e,
+};
 
-var THREE = BigInteger.valueOf(3)
+bitcoinjs.bitcoin.networks.vertcoin = {
+  messagePrefix: '\x18Vertcoin Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4,
+  },
+  pubKeyHash: 0x47,
+  scriptHash: 0x05,
+  wif: 0x80,
+};
 
-function Point (curve, x, y, z) {
-  assert.notStrictEqual(z, undefined, 'Missing Z coordinate')
+bitcoinjs.bitcoin.networks.vivo = {
+  messagePrefix: '\x18DarkCoin Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x46,
+  scriptHash: 0x0a,
+  wif: 0xc6,
+};
 
-  this.curve = curve
-  this.x = x
-  this.y = y
-  this.z = z
-  this._zInv = null
+bitcoinjs.bitcoin.networks.vpncoin = {
+  messagePrefix: '\x18VpnCoin Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4,
+  },
+  pubKeyHash: 0x47,
+  scriptHash: 0x05,
+  wif: 0xc7,
+};
 
-  this.compressed = true
-}
+bitcoinjs.bitcoin.networks.whitecoin = {
+  messagePrefix: '\x18Whitecoin Signed Message:\n',
+  bip32: {
+    public: 0x04887F1E,
+    private: 0x048894ED,
+  },
+  pubKeyHash: 0x49,
+  scriptHash: 0x57,
+  wif: 0xc9,
+};
 
-Object.defineProperty(Point.prototype, 'zInv', {
-  get: function () {
-    if (this._zInv === null) {
-      this._zInv = this.z.modInverse(this.curve.p)
-    }
+bitcoinjs.bitcoin.networks.wincoin = {
+  messagePrefix: '\x18WinCoin Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4,
+  },
+  pubKeyHash: 0x49,
+  scriptHash: 0x1c,
+  wif: 0xc9,
+};
 
-    return this._zInv
-  }
-})
+bitcoinjs.bitcoin.networks.zcoin = {
+  messagePrefix: '\x18Zcoin Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x52,
+  scriptHash: 0x07,
+  wif: 0xd2,
+};
 
-Object.defineProperty(Point.prototype, 'affineX', {
-  get: function () {
-    return this.x.multiply(this.zInv).mod(this.curve.p)
-  }
-})
+bitcoinjs.bitcoin.networks.zcash = {
+  messagePrefix: '\x18Zcash Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x1CB8,
+  scriptHash: 0x1CBD,
+  wif: 0x80,
+};
 
-Object.defineProperty(Point.prototype, 'affineY', {
-  get: function () {
-    return this.y.multiply(this.zInv).mod(this.curve.p)
-  }
-})
+bitcoinjs.bitcoin.networks.xuez = {
+  messagePrefix: 'unused',
+  bip32: {
+    public: 0x022d2533,
+    private: 0x0221312b
+  },
+  pubKeyHash: 0x4b,
+  scriptHash: 0x12,
+  wif: 0xd4
+};
 
-Point.fromAffine = function (curve, x, y) {
-  return new Point(curve, x, y, BigInteger.ONE)
-}
+bitcoinjs.bitcoin.networks.bitcoinprivate = {
+  messagePrefix: '\x18BitcoinPrivate Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x1325,
+  scriptHash: 0x13AF,
+  wif: 0x80,
+};
 
-Point.prototype.equals = function (other) {
-  if (other === this) return true
-  if (this.curve.isInfinity(this)) return this.curve.isInfinity(other)
-  if (this.curve.isInfinity(other)) return this.curve.isInfinity(this)
+bitcoinjs.bitcoin.networks.bitcoinz = {
+  messagePrefix: '\x18BitcoinZ Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x1CB8,
+  scriptHash: 0x1CBD,
+  wif: 0x80,
+};
 
-  // u = Y2 * Z1 - Y1 * Z2
-  var u = other.y.multiply(this.z).subtract(this.y.multiply(other.z)).mod(this.curve.p)
+bitcoinjs.bitcoin.networks.zclassic = {
+  messagePrefix: '\x18Zcash Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x1CB8,
+  scriptHash: 0x1CBD,
+  wif: 0x80,
+};
 
-  if (u.signum() !== 0) return false
+bitcoinjs.bitcoin.networks.zencash = {
+  messagePrefix: '\x18Zcash Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4,
+  },
+  pubKeyHash: 0x2089,
+  scriptHash: 0x2096,
+  wif: 0x80,
+};
 
-  // v = X2 * Z1 - X1 * Z2
-  var v = other.x.multiply(this.z).subtract(this.x.multiply(other.z)).mod(this.curve.p)
+bitcoinjs.bitcoin.networks.energi = {
+  messagePrefix: 'DarkCoin Signed Message:\n',
+  bip32: {
+    public: 0x03B8C856,
+    private: 0xD7DC6E9F,
+  },
+  pubKeyHash: 0x21,
+  scriptHash: 0x35,
+  wif: 0x6a,
+};</script>
+        <script>(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.bitcoinjsBip38 = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
+var asn1 = exports;
 
-  return v.signum() === 0
-}
+asn1.bignum = require('bn.js');
 
-Point.prototype.negate = function () {
-  var y = this.curve.p.subtract(this.y)
+asn1.define = require('./asn1/api').define;
+asn1.base = require('./asn1/base');
+asn1.constants = require('./asn1/constants');
+asn1.decoders = require('./asn1/decoders');
+asn1.encoders = require('./asn1/encoders');
 
-  return new Point(this.curve, this.x, y, this.z)
-}
+},{"./asn1/api":2,"./asn1/base":4,"./asn1/constants":8,"./asn1/decoders":10,"./asn1/encoders":13,"bn.js":17}],2:[function(require,module,exports){
+var asn1 = require('../asn1');
+var inherits = require('inherits');
 
-Point.prototype.add = function (b) {
-  if (this.curve.isInfinity(this)) return b
-  if (this.curve.isInfinity(b)) return this
+var api = exports;
 
-  var x1 = this.x
-  var y1 = this.y
-  var x2 = b.x
-  var y2 = b.y
+api.define = function define(name, body) {
+  return new Entity(name, body);
+};
 
-  // u = Y2 * Z1 - Y1 * Z2
-  var u = y2.multiply(this.z).subtract(y1.multiply(b.z)).mod(this.curve.p)
-  // v = X2 * Z1 - X1 * Z2
-  var v = x2.multiply(this.z).subtract(x1.multiply(b.z)).mod(this.curve.p)
+function Entity(name, body) {
+  this.name = name;
+  this.body = body;
 
-  if (v.signum() === 0) {
-    if (u.signum() === 0) {
-      return this.twice() // this == b, so double
-    }
+  this.decoders = {};
+  this.encoders = {};
+};
 
-    return this.curve.infinity // this = -b, so infinity
+Entity.prototype._createNamed = function createNamed(base) {
+  var named;
+  try {
+    named = require('vm').runInThisContext(
+      '(function ' + this.name + '(entity) {\n' +
+      '  this._initNamed(entity);\n' +
+      '})'
+    );
+  } catch (e) {
+    named = function (entity) {
+      this._initNamed(entity);
+    };
   }
+  inherits(named, base);
+  named.prototype._initNamed = function initnamed(entity) {
+    base.call(this, entity);
+  };
 
-  var v2 = v.square()
-  var v3 = v2.multiply(v)
-  var x1v2 = x1.multiply(v2)
-  var zu2 = u.square().multiply(this.z)
-
-  // x3 = v * (z2 * (z1 * u^2 - 2 * x1 * v^2) - v^3)
-  var x3 = zu2.subtract(x1v2.shiftLeft(1)).multiply(b.z).subtract(v3).multiply(v).mod(this.curve.p)
-  // y3 = z2 * (3 * x1 * u * v^2 - y1 * v^3 - z1 * u^3) + u * v^3
-  var y3 = x1v2.multiply(THREE).multiply(u).subtract(y1.multiply(v3)).subtract(zu2.multiply(u)).multiply(b.z).add(u.multiply(v3)).mod(this.curve.p)
-  // z3 = v^3 * z1 * z2
-  var z3 = v3.multiply(this.z).multiply(b.z).mod(this.curve.p)
+  return new named(this);
+};
 
-  return new Point(this.curve, x3, y3, z3)
-}
+Entity.prototype._getDecoder = function _getDecoder(enc) {
+  enc = enc || 'der';
+  // Lazily create decoder
+  if (!this.decoders.hasOwnProperty(enc))
+    this.decoders[enc] = this._createNamed(asn1.decoders[enc]);
+  return this.decoders[enc];
+};
 
-Point.prototype.twice = function () {
-  if (this.curve.isInfinity(this)) return this
-  if (this.y.signum() === 0) return this.curve.infinity
+Entity.prototype.decode = function decode(data, enc, options) {
+  return this._getDecoder(enc).decode(data, options);
+};
 
-  var x1 = this.x
-  var y1 = this.y
+Entity.prototype._getEncoder = function _getEncoder(enc) {
+  enc = enc || 'der';
+  // Lazily create encoder
+  if (!this.encoders.hasOwnProperty(enc))
+    this.encoders[enc] = this._createNamed(asn1.encoders[enc]);
+  return this.encoders[enc];
+};
 
-  var y1z1 = y1.multiply(this.z).mod(this.curve.p)
-  var y1sqz1 = y1z1.multiply(y1).mod(this.curve.p)
-  var a = this.curve.a
+Entity.prototype.encode = function encode(data, enc, /* internal */ reporter) {
+  return this._getEncoder(enc).encode(data, reporter);
+};
 
-  // w = 3 * x1^2 + a * z1^2
-  var w = x1.square().multiply(THREE)
+},{"../asn1":1,"inherits":95,"vm":149}],3:[function(require,module,exports){
+var inherits = require('inherits');
+var Reporter = require('../base').Reporter;
+var Buffer = require('buffer').Buffer;
 
-  if (a.signum() !== 0) {
-    w = w.add(this.z.square().multiply(a))
+function DecoderBuffer(base, options) {
+  Reporter.call(this, options);
+  if (!Buffer.isBuffer(base)) {
+    this.error('Input not Buffer');
+    return;
   }
 
-  w = w.mod(this.curve.p)
-  // x3 = 2 * y1 * z1 * (w^2 - 8 * x1 * y1^2 * z1)
-  var x3 = w.square().subtract(x1.shiftLeft(3).multiply(y1sqz1)).shiftLeft(1).multiply(y1z1).mod(this.curve.p)
-  // y3 = 4 * y1^2 * z1 * (3 * w * x1 - 2 * y1^2 * z1) - w^3
-  var y3 = w.multiply(THREE).multiply(x1).subtract(y1sqz1.shiftLeft(1)).shiftLeft(2).multiply(y1sqz1).subtract(w.pow(3)).mod(this.curve.p)
-  // z3 = 8 * (y1 * z1)^3
-  var z3 = y1z1.pow(3).shiftLeft(3).mod(this.curve.p)
-
-  return new Point(this.curve, x3, y3, z3)
+  this.base = base;
+  this.offset = 0;
+  this.length = base.length;
 }
+inherits(DecoderBuffer, Reporter);
+exports.DecoderBuffer = DecoderBuffer;
 
-// Simple NAF (Non-Adjacent Form) multiplication algorithm
-// TODO: modularize the multiplication algorithm
-Point.prototype.multiply = function (k) {
-  if (this.curve.isInfinity(this)) return this
-  if (k.signum() === 0) return this.curve.infinity
-
-  var e = k
-  var h = e.multiply(THREE)
+DecoderBuffer.prototype.save = function save() {
+  return { offset: this.offset, reporter: Reporter.prototype.save.call(this) };
+};
 
-  var neg = this.negate()
-  var R = this
+DecoderBuffer.prototype.restore = function restore(save) {
+  // Return skipped data
+  var res = new DecoderBuffer(this.base);
+  res.offset = save.offset;
+  res.length = this.offset;
 
-  for (var i = h.bitLength() - 2; i > 0; --i) {
-    var hBit = h.testBit(i)
-    var eBit = e.testBit(i)
+  this.offset = save.offset;
+  Reporter.prototype.restore.call(this, save.reporter);
 
-    R = R.twice()
+  return res;
+};
 
-    if (hBit !== eBit) {
-      R = R.add(hBit ? this : neg)
-    }
-  }
+DecoderBuffer.prototype.isEmpty = function isEmpty() {
+  return this.offset === this.length;
+};
 
-  return R
+DecoderBuffer.prototype.readUInt8 = function readUInt8(fail) {
+  if (this.offset + 1 <= this.length)
+    return this.base.readUInt8(this.offset++, true);
+  else
+    return this.error(fail || 'DecoderBuffer overrun');
 }
 
-// Compute this*j + x*k (simultaneous multiplication)
-Point.prototype.multiplyTwo = function (j, x, k) {
-  var i = Math.max(j.bitLength(), k.bitLength()) - 1
-  var R = this.curve.infinity
-  var both = this.add(x)
+DecoderBuffer.prototype.skip = function skip(bytes, fail) {
+  if (!(this.offset + bytes <= this.length))
+    return this.error(fail || 'DecoderBuffer overrun');
 
-  while (i >= 0) {
-    var jBit = j.testBit(i)
-    var kBit = k.testBit(i)
+  var res = new DecoderBuffer(this.base);
 
-    R = R.twice()
+  // Share reporter state
+  res._reporterState = this._reporterState;
 
-    if (jBit) {
-      if (kBit) {
-        R = R.add(both)
-      } else {
-        R = R.add(this)
-      }
-    } else if (kBit) {
-      R = R.add(x)
-    }
-    --i
-  }
+  res.offset = this.offset;
+  res.length = this.offset + bytes;
+  this.offset += bytes;
+  return res;
+}
 
-  return R
+DecoderBuffer.prototype.raw = function raw(save) {
+  return this.base.slice(save ? save.offset : this.offset, this.length);
 }
 
-Point.prototype.getEncoded = function (compressed) {
-  if (compressed == null) compressed = this.compressed
-  if (this.curve.isInfinity(this)) return new Buffer('00', 'hex') // Infinity point encoded is simply '00'
+function EncoderBuffer(value, reporter) {
+  if (Array.isArray(value)) {
+    this.length = 0;
+    this.value = value.map(function(item) {
+      if (!(item instanceof EncoderBuffer))
+        item = new EncoderBuffer(item, reporter);
+      this.length += item.length;
+      return item;
+    }, this);
+  } else if (typeof value === 'number') {
+    if (!(0 <= value && value <= 0xff))
+      return reporter.error('non-byte EncoderBuffer value');
+    this.value = value;
+    this.length = 1;
+  } else if (typeof value === 'string') {
+    this.value = value;
+    this.length = Buffer.byteLength(value);
+  } else if (Buffer.isBuffer(value)) {
+    this.value = value;
+    this.length = value.length;
+  } else {
+    return reporter.error('Unsupported type: ' + typeof value);
+  }
+}
+exports.EncoderBuffer = EncoderBuffer;
 
-  var x = this.affineX
-  var y = this.affineY
-  var byteLength = this.curve.pLength
-  var buffer
+EncoderBuffer.prototype.join = function join(out, offset) {
+  if (!out)
+    out = new Buffer(this.length);
+  if (!offset)
+    offset = 0;
 
-  // 0x02/0x03 | X
-  if (compressed) {
-    buffer = new Buffer(1 + byteLength)
-    buffer.writeUInt8(y.isEven() ? 0x02 : 0x03, 0)
+  if (this.length === 0)
+    return out;
 
-  // 0x04 | X | Y
+  if (Array.isArray(this.value)) {
+    this.value.forEach(function(item) {
+      item.join(out, offset);
+      offset += item.length;
+    });
   } else {
-    buffer = new Buffer(1 + byteLength + byteLength)
-    buffer.writeUInt8(0x04, 0)
-
-    y.toBuffer(byteLength).copy(buffer, 1 + byteLength)
+    if (typeof this.value === 'number')
+      out[offset] = this.value;
+    else if (typeof this.value === 'string')
+      out.write(this.value, offset);
+    else if (Buffer.isBuffer(this.value))
+      this.value.copy(out, offset);
+    offset += this.length;
   }
 
-  x.toBuffer(byteLength).copy(buffer, 1)
+  return out;
+};
 
-  return buffer
-}
+},{"../base":4,"buffer":47,"inherits":95}],4:[function(require,module,exports){
+var base = exports;
 
-Point.decodeFrom = function (curve, buffer) {
-  var type = buffer.readUInt8(0)
-  var compressed = (type !== 4)
+base.Reporter = require('./reporter').Reporter;
+base.DecoderBuffer = require('./buffer').DecoderBuffer;
+base.EncoderBuffer = require('./buffer').EncoderBuffer;
+base.Node = require('./node');
 
-  var byteLength = Math.floor((curve.p.bitLength() + 7) / 8)
-  var x = BigInteger.fromBuffer(buffer.slice(1, 1 + byteLength))
+},{"./buffer":3,"./node":5,"./reporter":6}],5:[function(require,module,exports){
+var Reporter = require('../base').Reporter;
+var EncoderBuffer = require('../base').EncoderBuffer;
+var DecoderBuffer = require('../base').DecoderBuffer;
+var assert = require('minimalistic-assert');
 
-  var Q
-  if (compressed) {
-    assert.equal(buffer.length, byteLength + 1, 'Invalid sequence length')
-    assert(type === 0x02 || type === 0x03, 'Invalid sequence tag')
+// Supported tags
+var tags = [
+  'seq', 'seqof', 'set', 'setof', 'objid', 'bool',
+  'gentime', 'utctime', 'null_', 'enum', 'int', 'objDesc',
+  'bitstr', 'bmpstr', 'charstr', 'genstr', 'graphstr', 'ia5str', 'iso646str',
+  'numstr', 'octstr', 'printstr', 't61str', 'unistr', 'utf8str', 'videostr'
+];
 
-    var isOdd = (type === 0x03)
-    Q = curve.pointFromX(isOdd, x)
-  } else {
-    assert.equal(buffer.length, 1 + byteLength + byteLength, 'Invalid sequence length')
+// Public methods list
+var methods = [
+  'key', 'obj', 'use', 'optional', 'explicit', 'implicit', 'def', 'choice',
+  'any', 'contains'
+].concat(tags);
 
-    var y = BigInteger.fromBuffer(buffer.slice(1 + byteLength))
-    Q = Point.fromAffine(curve, x, y)
-  }
+// Overrided methods list
+var overrided = [
+  '_peekTag', '_decodeTag', '_use',
+  '_decodeStr', '_decodeObjid', '_decodeTime',
+  '_decodeNull', '_decodeInt', '_decodeBool', '_decodeList',
 
-  Q.compressed = compressed
-  return Q
-}
+  '_encodeComposite', '_encodeStr', '_encodeObjid', '_encodeTime',
+  '_encodeNull', '_encodeInt', '_encodeBool'
+];
 
-Point.prototype.toString = function () {
-  if (this.curve.isInfinity(this)) return '(INFINITY)'
+function Node(enc, parent) {
+  var state = {};
+  this._baseState = state;
 
-  return '(' + this.affineX.toString() + ',' + this.affineY.toString() + ')'
-}
+  state.enc = enc;
 
-module.exports = Point
-
-}).call(this,require("buffer").Buffer)
-},{"assert":1,"bigi":39,"buffer":5}],97:[function(require,module,exports){
-'use strict';
-
-var elliptic = exports;
-
-elliptic.version = require('../package.json').version;
-elliptic.utils = require('./elliptic/utils');
-elliptic.rand = require('brorand');
-elliptic.curve = require('./elliptic/curve');
-elliptic.curves = require('./elliptic/curves');
-
-// Protocols
-elliptic.ec = require('./elliptic/ec');
-elliptic.eddsa = require('./elliptic/eddsa');
-
-},{"../package.json":112,"./elliptic/curve":100,"./elliptic/curves":103,"./elliptic/ec":104,"./elliptic/eddsa":107,"./elliptic/utils":111,"brorand":82}],98:[function(require,module,exports){
-'use strict';
-
-var BN = require('bn.js');
-var elliptic = require('../../elliptic');
-var utils = elliptic.utils;
-var getNAF = utils.getNAF;
-var getJSF = utils.getJSF;
-var assert = utils.assert;
-
-function BaseCurve(type, conf) {
-  this.type = type;
-  this.p = new BN(conf.p, 16);
-
-  // Use Montgomery, when there is no fast reduction for the prime
-  this.red = conf.prime ? BN.red(conf.prime) : BN.mont(this.p);
-
-  // Useful for many curves
-  this.zero = new BN(0).toRed(this.red);
-  this.one = new BN(1).toRed(this.red);
-  this.two = new BN(2).toRed(this.red);
-
-  // Curve configuration, optional
-  this.n = conf.n && new BN(conf.n, 16);
-  this.g = conf.g && this.pointFromJSON(conf.g, conf.gRed);
+  state.parent = parent || null;
+  state.children = null;
 
-  // Temporary arrays
-  this._wnafT1 = new Array(4);
-  this._wnafT2 = new Array(4);
-  this._wnafT3 = new Array(4);
-  this._wnafT4 = new Array(4);
+  // State
+  state.tag = null;
+  state.args = null;
+  state.reverseArgs = null;
+  state.choice = null;
+  state.optional = false;
+  state.any = false;
+  state.obj = false;
+  state.use = null;
+  state.useDecoder = null;
+  state.key = null;
+  state['default'] = null;
+  state.explicit = null;
+  state.implicit = null;
+  state.contains = null;
 
-  // Generalized Greg Maxwell's trick
-  var adjustCount = this.n && this.p.div(this.n);
-  if (!adjustCount || adjustCount.cmpn(100) > 0) {
-    this.redN = null;
-  } else {
-    this._maxwellTrick = true;
-    this.redN = this.n.toRed(this.red);
+  // Should create new instance on each method
+  if (!state.parent) {
+    state.children = [];
+    this._wrap();
   }
 }
-module.exports = BaseCurve;
+module.exports = Node;
 
-BaseCurve.prototype.point = function point() {
-  throw new Error('Not implemented');
-};
+var stateProps = [
+  'enc', 'parent', 'children', 'tag', 'args', 'reverseArgs', 'choice',
+  'optional', 'any', 'obj', 'use', 'alteredUse', 'key', 'default', 'explicit',
+  'implicit', 'contains'
+];
 
-BaseCurve.prototype.validate = function validate() {
-  throw new Error('Not implemented');
+Node.prototype.clone = function clone() {
+  var state = this._baseState;
+  var cstate = {};
+  stateProps.forEach(function(prop) {
+    cstate[prop] = state[prop];
+  });
+  var res = new this.constructor(cstate.parent);
+  res._baseState = cstate;
+  return res;
 };
 
-BaseCurve.prototype._fixedNafMul = function _fixedNafMul(p, k) {
-  assert(p.precomputed);
-  var doubles = p._getDoubles();
+Node.prototype._wrap = function wrap() {
+  var state = this._baseState;
+  methods.forEach(function(method) {
+    this[method] = function _wrappedMethod() {
+      var clone = new this.constructor(this);
+      state.children.push(clone);
+      return clone[method].apply(clone, arguments);
+    };
+  }, this);
+};
 
-  var naf = getNAF(k, 1);
-  var I = (1 << (doubles.step + 1)) - (doubles.step % 2 === 0 ? 2 : 1);
-  I /= 3;
+Node.prototype._init = function init(body) {
+  var state = this._baseState;
 
-  // Translate into more windowed form
-  var repr = [];
-  for (var j = 0; j < naf.length; j += doubles.step) {
-    var nafW = 0;
-    for (var k = j + doubles.step - 1; k >= j; k--)
-      nafW = (nafW << 1) + naf[k];
-    repr.push(nafW);
-  }
+  assert(state.parent === null);
+  body.call(this);
 
-  var a = this.jpoint(null, null, null);
-  var b = this.jpoint(null, null, null);
-  for (var i = I; i > 0; i--) {
-    for (var j = 0; j < repr.length; j++) {
-      var nafW = repr[j];
-      if (nafW === i)
-        b = b.mixedAdd(doubles.points[j]);
-      else if (nafW === -i)
-        b = b.mixedAdd(doubles.points[j].neg());
-    }
-    a = a.add(b);
-  }
-  return a.toP();
+  // Filter children
+  state.children = state.children.filter(function(child) {
+    return child._baseState.parent === this;
+  }, this);
+  assert.equal(state.children.length, 1, 'Root node can have only one child');
 };
 
-BaseCurve.prototype._wnafMul = function _wnafMul(p, k) {
-  var w = 4;
+Node.prototype._useArgs = function useArgs(args) {
+  var state = this._baseState;
 
-  // Precompute window
-  var nafPoints = p._getNAFPoints(w);
-  w = nafPoints.wnd;
-  var wnd = nafPoints.points;
+  // Filter children and args
+  var children = args.filter(function(arg) {
+    return arg instanceof this.constructor;
+  }, this);
+  args = args.filter(function(arg) {
+    return !(arg instanceof this.constructor);
+  }, this);
 
-  // Get NAF form
-  var naf = getNAF(k, w);
+  if (children.length !== 0) {
+    assert(state.children === null);
+    state.children = children;
 
-  // Add `this`*(N+1) for every w-NAF index
-  var acc = this.jpoint(null, null, null);
-  for (var i = naf.length - 1; i >= 0; i--) {
-    // Count zeroes
-    for (var k = 0; i >= 0 && naf[i] === 0; i--)
-      k++;
-    if (i >= 0)
-      k++;
-    acc = acc.dblp(k);
+    // Replace parent to maintain backward link
+    children.forEach(function(child) {
+      child._baseState.parent = this;
+    }, this);
+  }
+  if (args.length !== 0) {
+    assert(state.args === null);
+    state.args = args;
+    state.reverseArgs = args.map(function(arg) {
+      if (typeof arg !== 'object' || arg.constructor !== Object)
+        return arg;
 
-    if (i < 0)
-      break;
-    var z = naf[i];
-    assert(z !== 0);
-    if (p.type === 'affine') {
-      // J +- P
-      if (z > 0)
-        acc = acc.mixedAdd(wnd[(z - 1) >> 1]);
-      else
-        acc = acc.mixedAdd(wnd[(-z - 1) >> 1].neg());
-    } else {
-      // J +- J
-      if (z > 0)
-        acc = acc.add(wnd[(z - 1) >> 1]);
-      else
-        acc = acc.add(wnd[(-z - 1) >> 1].neg());
-    }
+      var res = {};
+      Object.keys(arg).forEach(function(key) {
+        if (key == (key | 0))
+          key |= 0;
+        var value = arg[key];
+        res[value] = key;
+      });
+      return res;
+    });
   }
-  return p.type === 'affine' ? acc.toP() : acc;
 };
 
-BaseCurve.prototype._wnafMulAdd = function _wnafMulAdd(defW,
-                                                       points,
-                                                       coeffs,
-                                                       len,
-                                                       jacobianResult) {
-  var wndWidth = this._wnafT1;
-  var wnd = this._wnafT2;
-  var naf = this._wnafT3;
+//
+// Overrided methods
+//
 
-  // Fill all arrays
-  var max = 0;
-  for (var i = 0; i < len; i++) {
-    var p = points[i];
-    var nafPoints = p._getNAFPoints(defW);
-    wndWidth[i] = nafPoints.wnd;
-    wnd[i] = nafPoints.points;
-  }
+overrided.forEach(function(method) {
+  Node.prototype[method] = function _overrided() {
+    var state = this._baseState;
+    throw new Error(method + ' not implemented for encoding: ' + state.enc);
+  };
+});
 
-  // Comb small window NAFs
-  for (var i = len - 1; i >= 1; i -= 2) {
-    var a = i - 1;
-    var b = i;
-    if (wndWidth[a] !== 1 || wndWidth[b] !== 1) {
-      naf[a] = getNAF(coeffs[a], wndWidth[a]);
-      naf[b] = getNAF(coeffs[b], wndWidth[b]);
-      max = Math.max(naf[a].length, max);
-      max = Math.max(naf[b].length, max);
-      continue;
-    }
+//
+// Public methods
+//
 
-    var comb = [
-      points[a], /* 1 */
-      null, /* 3 */
-      null, /* 5 */
-      points[b] /* 7 */
-    ];
+tags.forEach(function(tag) {
+  Node.prototype[tag] = function _tagMethod() {
+    var state = this._baseState;
+    var args = Array.prototype.slice.call(arguments);
 
-    // Try to avoid Projective points, if possible
-    if (points[a].y.cmp(points[b].y) === 0) {
-      comb[1] = points[a].add(points[b]);
-      comb[2] = points[a].toJ().mixedAdd(points[b].neg());
-    } else if (points[a].y.cmp(points[b].y.redNeg()) === 0) {
-      comb[1] = points[a].toJ().mixedAdd(points[b]);
-      comb[2] = points[a].add(points[b].neg());
-    } else {
-      comb[1] = points[a].toJ().mixedAdd(points[b]);
-      comb[2] = points[a].toJ().mixedAdd(points[b].neg());
-    }
+    assert(state.tag === null);
+    state.tag = tag;
 
-    var index = [
-      -3, /* -1 -1 */
-      -1, /* -1 0 */
-      -5, /* -1 1 */
-      -7, /* 0 -1 */
-      0, /* 0 0 */
-      7, /* 0 1 */
-      5, /* 1 -1 */
-      1, /* 1 0 */
-      3  /* 1 1 */
-    ];
+    this._useArgs(args);
 
-    var jsf = getJSF(coeffs[a], coeffs[b]);
-    max = Math.max(jsf[0].length, max);
-    naf[a] = new Array(max);
-    naf[b] = new Array(max);
-    for (var j = 0; j < max; j++) {
-      var ja = jsf[0][j] | 0;
-      var jb = jsf[1][j] | 0;
+    return this;
+  };
+});
 
-      naf[a][j] = index[(ja + 1) * 3 + (jb + 1)];
-      naf[b][j] = 0;
-      wnd[a] = comb;
-    }
-  }
+Node.prototype.use = function use(item) {
+  assert(item);
+  var state = this._baseState;
 
-  var acc = this.jpoint(null, null, null);
-  var tmp = this._wnafT4;
-  for (var i = max; i >= 0; i--) {
-    var k = 0;
+  assert(state.use === null);
+  state.use = item;
 
-    while (i >= 0) {
-      var zero = true;
-      for (var j = 0; j < len; j++) {
-        tmp[j] = naf[j][i] | 0;
-        if (tmp[j] !== 0)
-          zero = false;
-      }
-      if (!zero)
-        break;
-      k++;
-      i--;
-    }
-    if (i >= 0)
-      k++;
-    acc = acc.dblp(k);
-    if (i < 0)
-      break;
+  return this;
+};
 
-    for (var j = 0; j < len; j++) {
-      var z = tmp[j];
-      var p;
-      if (z === 0)
-        continue;
-      else if (z > 0)
-        p = wnd[j][(z - 1) >> 1];
-      else if (z < 0)
-        p = wnd[j][(-z - 1) >> 1].neg();
+Node.prototype.optional = function optional() {
+  var state = this._baseState;
 
-      if (p.type === 'affine')
-        acc = acc.mixedAdd(p);
-      else
-        acc = acc.add(p);
-    }
-  }
-  // Zeroify references
-  for (var i = 0; i < len; i++)
-    wnd[i] = null;
+  state.optional = true;
 
-  if (jacobianResult)
-    return acc;
-  else
-    return acc.toP();
+  return this;
 };
 
-function BasePoint(curve, type) {
-  this.curve = curve;
-  this.type = type;
-  this.precomputed = null;
-}
-BaseCurve.BasePoint = BasePoint;
+Node.prototype.def = function def(val) {
+  var state = this._baseState;
 
-BasePoint.prototype.eq = function eq(/*other*/) {
-  throw new Error('Not implemented');
-};
+  assert(state['default'] === null);
+  state['default'] = val;
+  state.optional = true;
 
-BasePoint.prototype.validate = function validate() {
-  return this.curve.validate(this);
+  return this;
 };
 
-BaseCurve.prototype.decodePoint = function decodePoint(bytes, enc) {
-  bytes = utils.toArray(bytes, enc);
+Node.prototype.explicit = function explicit(num) {
+  var state = this._baseState;
 
-  var len = this.p.byteLength();
+  assert(state.explicit === null && state.implicit === null);
+  state.explicit = num;
 
-  // uncompressed, hybrid-odd, hybrid-even
-  if ((bytes[0] === 0x04 || bytes[0] === 0x06 || bytes[0] === 0x07) &&
-      bytes.length - 1 === 2 * len) {
-    if (bytes[0] === 0x06)
-      assert(bytes[bytes.length - 1] % 2 === 0);
-    else if (bytes[0] === 0x07)
-      assert(bytes[bytes.length - 1] % 2 === 1);
+  return this;
+};
 
-    var res =  this.point(bytes.slice(1, 1 + len),
-                          bytes.slice(1 + len, 1 + 2 * len));
+Node.prototype.implicit = function implicit(num) {
+  var state = this._baseState;
 
-    return res;
-  } else if ((bytes[0] === 0x02 || bytes[0] === 0x03) &&
-              bytes.length - 1 === len) {
-    return this.pointFromX(bytes.slice(1, 1 + len), bytes[0] === 0x03);
-  }
-  throw new Error('Unknown point format');
-};
+  assert(state.explicit === null && state.implicit === null);
+  state.implicit = num;
 
-BasePoint.prototype.encodeCompressed = function encodeCompressed(enc) {
-  return this.encode(enc, true);
+  return this;
 };
 
-BasePoint.prototype._encode = function _encode(compact) {
-  var len = this.curve.p.byteLength();
-  var x = this.getX().toArray('be', len);
+Node.prototype.obj = function obj() {
+  var state = this._baseState;
+  var args = Array.prototype.slice.call(arguments);
 
-  if (compact)
-    return [ this.getY().isEven() ? 0x02 : 0x03 ].concat(x);
+  state.obj = true;
 
-  return [ 0x04 ].concat(x, this.getY().toArray('be', len)) ;
-};
+  if (args.length !== 0)
+    this._useArgs(args);
 
-BasePoint.prototype.encode = function encode(enc, compact) {
-  return utils.encode(this._encode(compact), enc);
+  return this;
 };
 
-BasePoint.prototype.precompute = function precompute(power) {
-  if (this.precomputed)
-    return this;
+Node.prototype.key = function key(newKey) {
+  var state = this._baseState;
 
-  var precomputed = {
-    doubles: null,
-    naf: null,
-    beta: null
-  };
-  precomputed.naf = this._getNAFPoints(8);
-  precomputed.doubles = this._getDoubles(4, power);
-  precomputed.beta = this._getBeta();
-  this.precomputed = precomputed;
+  assert(state.key === null);
+  state.key = newKey;
 
   return this;
 };
 
-BasePoint.prototype._hasDoubles = function _hasDoubles(k) {
-  if (!this.precomputed)
-    return false;
+Node.prototype.any = function any() {
+  var state = this._baseState;
 
-  var doubles = this.precomputed.doubles;
-  if (!doubles)
-    return false;
+  state.any = true;
 
-  return doubles.points.length >= Math.ceil((k.bitLength() + 1) / doubles.step);
+  return this;
 };
 
-BasePoint.prototype._getDoubles = function _getDoubles(step, power) {
-  if (this.precomputed && this.precomputed.doubles)
-    return this.precomputed.doubles;
+Node.prototype.choice = function choice(obj) {
+  var state = this._baseState;
 
-  var doubles = [ this ];
-  var acc = this;
-  for (var i = 0; i < power; i += step) {
-    for (var j = 0; j < step; j++)
-      acc = acc.dbl();
-    doubles.push(acc);
-  }
-  return {
-    step: step,
-    points: doubles
-  };
+  assert(state.choice === null);
+  state.choice = obj;
+  this._useArgs(Object.keys(obj).map(function(key) {
+    return obj[key];
+  }));
+
+  return this;
 };
 
-BasePoint.prototype._getNAFPoints = function _getNAFPoints(wnd) {
-  if (this.precomputed && this.precomputed.naf)
-    return this.precomputed.naf;
+Node.prototype.contains = function contains(item) {
+  var state = this._baseState;
 
-  var res = [ this ];
-  var max = (1 << wnd) - 1;
-  var dbl = max === 1 ? null : this.dbl();
-  for (var i = 1; i < max; i++)
-    res[i] = res[i - 1].add(dbl);
-  return {
-    wnd: wnd,
-    points: res
-  };
-};
+  assert(state.use === null);
+  state.contains = item;
 
-BasePoint.prototype._getBeta = function _getBeta() {
-  return null;
+  return this;
 };
 
-BasePoint.prototype.dblp = function dblp(k) {
-  var r = this;
-  for (var i = 0; i < k; i++)
-    r = r.dbl();
-  return r;
-};
+//
+// Decoding
+//
 
-},{"../../elliptic":97,"bn.js":81}],99:[function(require,module,exports){
-'use strict';
+Node.prototype._decode = function decode(input, options) {
+  var state = this._baseState;
 
-var curve = require('../curve');
-var elliptic = require('../../elliptic');
-var BN = require('bn.js');
-var inherits = require('inherits');
-var Base = curve.base;
+  // Decode root node
+  if (state.parent === null)
+    return input.wrapResult(state.children[0]._decode(input, options));
 
-var assert = elliptic.utils.assert;
+  var result = state['default'];
+  var present = true;
 
-function EdwardsCurve(conf) {
-  // NOTE: Important as we are creating point in Base.call()
-  this.twisted = (conf.a | 0) !== 1;
-  this.mOneA = this.twisted && (conf.a | 0) === -1;
-  this.extended = this.mOneA;
+  var prevKey = null;
+  if (state.key !== null)
+    prevKey = input.enterKey(state.key);
 
-  Base.call(this, 'edwards', conf);
+  // Check if tag is there
+  if (state.optional) {
+    var tag = null;
+    if (state.explicit !== null)
+      tag = state.explicit;
+    else if (state.implicit !== null)
+      tag = state.implicit;
+    else if (state.tag !== null)
+      tag = state.tag;
 
-  this.a = new BN(conf.a, 16).umod(this.red.m);
-  this.a = this.a.toRed(this.red);
-  this.c = new BN(conf.c, 16).toRed(this.red);
-  this.c2 = this.c.redSqr();
-  this.d = new BN(conf.d, 16).toRed(this.red);
-  this.dd = this.d.redAdd(this.d);
+    if (tag === null && !state.any) {
+      // Trial and Error
+      var save = input.save();
+      try {
+        if (state.choice === null)
+          this._decodeGeneric(state.tag, input, options);
+        else
+          this._decodeChoice(input, options);
+        present = true;
+      } catch (e) {
+        present = false;
+      }
+      input.restore(save);
+    } else {
+      present = this._peekTag(input, tag, state.any);
 
-  assert(!this.twisted || this.c.fromRed().cmpn(1) === 0);
-  this.oneC = (conf.c | 0) === 1;
-}
-inherits(EdwardsCurve, Base);
-module.exports = EdwardsCurve;
+      if (input.isError(present))
+        return present;
+    }
+  }
 
-EdwardsCurve.prototype._mulA = function _mulA(num) {
-  if (this.mOneA)
-    return num.redNeg();
-  else
-    return this.a.redMul(num);
-};
+  // Push object on stack
+  var prevObj;
+  if (state.obj && present)
+    prevObj = input.enterObject();
 
-EdwardsCurve.prototype._mulC = function _mulC(num) {
-  if (this.oneC)
-    return num;
-  else
-    return this.c.redMul(num);
-};
+  if (present) {
+    // Unwrap explicit values
+    if (state.explicit !== null) {
+      var explicit = this._decodeTag(input, state.explicit);
+      if (input.isError(explicit))
+        return explicit;
+      input = explicit;
+    }
 
-// Just for compatibility with Short curve
-EdwardsCurve.prototype.jpoint = function jpoint(x, y, z, t) {
-  return this.point(x, y, z, t);
-};
+    var start = input.offset;
 
-EdwardsCurve.prototype.pointFromX = function pointFromX(x, odd) {
-  x = new BN(x, 16);
-  if (!x.red)
-    x = x.toRed(this.red);
+    // Unwrap implicit and normal values
+    if (state.use === null && state.choice === null) {
+      if (state.any)
+        var save = input.save();
+      var body = this._decodeTag(
+        input,
+        state.implicit !== null ? state.implicit : state.tag,
+        state.any
+      );
+      if (input.isError(body))
+        return body;
 
-  var x2 = x.redSqr();
-  var rhs = this.c2.redSub(this.a.redMul(x2));
-  var lhs = this.one.redSub(this.c2.redMul(this.d).redMul(x2));
+      if (state.any)
+        result = input.raw(save);
+      else
+        input = body;
+    }
 
-  var y2 = rhs.redMul(lhs.redInvm());
-  var y = y2.redSqrt();
-  if (y.redSqr().redSub(y2).cmp(this.zero) !== 0)
-    throw new Error('invalid point');
+    if (options && options.track && state.tag !== null)
+      options.track(input.path(), start, input.length, 'tagged');
 
-  var isOdd = y.fromRed().isOdd();
-  if (odd && !isOdd || !odd && isOdd)
-    y = y.redNeg();
+    if (options && options.track && state.tag !== null)
+      options.track(input.path(), input.offset, input.length, 'content');
 
-  return this.point(x, y);
-};
+    // Select proper method for tag
+    if (state.any)
+      result = result;
+    else if (state.choice === null)
+      result = this._decodeGeneric(state.tag, input, options);
+    else
+      result = this._decodeChoice(input, options);
 
-EdwardsCurve.prototype.pointFromY = function pointFromY(y, odd) {
-  y = new BN(y, 16);
-  if (!y.red)
-    y = y.toRed(this.red);
+    if (input.isError(result))
+      return result;
 
-  // x^2 = (y^2 - 1) / (d y^2 + 1)
-  var y2 = y.redSqr();
-  var lhs = y2.redSub(this.one);
-  var rhs = y2.redMul(this.d).redAdd(this.one);
-  var x2 = lhs.redMul(rhs.redInvm());
+    // Decode children
+    if (!state.any && state.choice === null && state.children !== null) {
+      state.children.forEach(function decodeChildren(child) {
+        // NOTE: We are ignoring errors here, to let parser continue with other
+        // parts of encoded data
+        child._decode(input, options);
+      });
+    }
 
-  if (x2.cmp(this.zero) === 0) {
-    if (odd)
-      throw new Error('invalid point');
-    else
-      return this.point(this.zero, y);
+    // Decode contained/encoded by schema, only in bit or octet strings
+    if (state.contains && (state.tag === 'octstr' || state.tag === 'bitstr')) {
+      var data = new DecoderBuffer(result);
+      result = this._getUse(state.contains, input._reporterState.obj)
+          ._decode(data, options);
+    }
   }
 
-  var x = x2.redSqrt();
-  if (x.redSqr().redSub(x2).cmp(this.zero) !== 0)
-    throw new Error('invalid point');
+  // Pop object
+  if (state.obj && present)
+    result = input.leaveObject(prevObj);
 
-  if (x.isOdd() !== odd)
-    x = x.redNeg();
+  // Set key
+  if (state.key !== null && (result !== null || present === true))
+    input.leaveKey(prevKey, state.key, result);
+  else if (prevKey !== null)
+    input.exitKey(prevKey);
 
-  return this.point(x, y);
+  return result;
 };
 
-EdwardsCurve.prototype.validate = function validate(point) {
-  if (point.isInfinity())
-    return true;
-
-  // Curve: A * X^2 + Y^2 = C^2 * (1 + D * X^2 * Y^2)
-  point.normalize();
-
-  var x2 = point.x.redSqr();
-  var y2 = point.y.redSqr();
-  var lhs = x2.redMul(this.a).redAdd(y2);
-  var rhs = this.c2.redMul(this.one.redAdd(this.d.redMul(x2).redMul(y2)));
+Node.prototype._decodeGeneric = function decodeGeneric(tag, input, options) {
+  var state = this._baseState;
 
-  return lhs.cmp(rhs) === 0;
-};
+  if (tag === 'seq' || tag === 'set')
+    return null;
+  if (tag === 'seqof' || tag === 'setof')
+    return this._decodeList(input, tag, state.args[0], options);
+  else if (/str$/.test(tag))
+    return this._decodeStr(input, tag, options);
+  else if (tag === 'objid' && state.args)
+    return this._decodeObjid(input, state.args[0], state.args[1], options);
+  else if (tag === 'objid')
+    return this._decodeObjid(input, null, null, options);
+  else if (tag === 'gentime' || tag === 'utctime')
+    return this._decodeTime(input, tag, options);
+  else if (tag === 'null_')
+    return this._decodeNull(input, options);
+  else if (tag === 'bool')
+    return this._decodeBool(input, options);
+  else if (tag === 'objDesc')
+    return this._decodeStr(input, tag, options);
+  else if (tag === 'int' || tag === 'enum')
+    return this._decodeInt(input, state.args && state.args[0], options);
 
-function Point(curve, x, y, z, t) {
-  Base.BasePoint.call(this, curve, 'projective');
-  if (x === null && y === null && z === null) {
-    this.x = this.curve.zero;
-    this.y = this.curve.one;
-    this.z = this.curve.one;
-    this.t = this.curve.zero;
-    this.zOne = true;
+  if (state.use !== null) {
+    return this._getUse(state.use, input._reporterState.obj)
+        ._decode(input, options);
   } else {
-    this.x = new BN(x, 16);
-    this.y = new BN(y, 16);
-    this.z = z ? new BN(z, 16) : this.curve.one;
-    this.t = t && new BN(t, 16);
-    if (!this.x.red)
-      this.x = this.x.toRed(this.curve.red);
-    if (!this.y.red)
-      this.y = this.y.toRed(this.curve.red);
-    if (!this.z.red)
-      this.z = this.z.toRed(this.curve.red);
-    if (this.t && !this.t.red)
-      this.t = this.t.toRed(this.curve.red);
-    this.zOne = this.z === this.curve.one;
-
-    // Use extended coordinates
-    if (this.curve.extended && !this.t) {
-      this.t = this.x.redMul(this.y);
-      if (!this.zOne)
-        this.t = this.t.redMul(this.z.redInvm());
-    }
+    return input.error('unknown tag: ' + tag);
   }
-}
-inherits(Point, Base.BasePoint);
-
-EdwardsCurve.prototype.pointFromJSON = function pointFromJSON(obj) {
-  return Point.fromJSON(this, obj);
-};
-
-EdwardsCurve.prototype.point = function point(x, y, z, t) {
-  return new Point(this, x, y, z, t);
-};
-
-Point.fromJSON = function fromJSON(curve, obj) {
-  return new Point(curve, obj[0], obj[1], obj[2]);
-};
-
-Point.prototype.inspect = function inspect() {
-  if (this.isInfinity())
-    return '<EC Point Infinity>';
-  return '<EC Point x: ' + this.x.fromRed().toString(16, 2) +
-      ' y: ' + this.y.fromRed().toString(16, 2) +
-      ' z: ' + this.z.fromRed().toString(16, 2) + '>';
-};
-
-Point.prototype.isInfinity = function isInfinity() {
-  // XXX This code assumes that zero is always zero in red
-  return this.x.cmpn(0) === 0 &&
-         this.y.cmp(this.z) === 0;
 };
 
-Point.prototype._extDbl = function _extDbl() {
-  // hyperelliptic.org/EFD/g1p/auto-twisted-extended-1.html
-  //     #doubling-dbl-2008-hwcd
-  // 4M + 4S
+Node.prototype._getUse = function _getUse(entity, obj) {
 
-  // A = X1^2
-  var a = this.x.redSqr();
-  // B = Y1^2
-  var b = this.y.redSqr();
-  // C = 2 * Z1^2
-  var c = this.z.redSqr();
-  c = c.redIAdd(c);
-  // D = a * A
-  var d = this.curve._mulA(a);
-  // E = (X1 + Y1)^2 - A - B
-  var e = this.x.redAdd(this.y).redSqr().redISub(a).redISub(b);
-  // G = D + B
-  var g = d.redAdd(b);
-  // F = G - C
-  var f = g.redSub(c);
-  // H = D - B
-  var h = d.redSub(b);
-  // X3 = E * F
-  var nx = e.redMul(f);
-  // Y3 = G * H
-  var ny = g.redMul(h);
-  // T3 = E * H
-  var nt = e.redMul(h);
-  // Z3 = F * G
-  var nz = f.redMul(g);
-  return this.curve.point(nx, ny, nz, nt);
+  var state = this._baseState;
+  // Create altered use decoder if implicit is set
+  state.useDecoder = this._use(entity, obj);
+  assert(state.useDecoder._baseState.parent === null);
+  state.useDecoder = state.useDecoder._baseState.children[0];
+  if (state.implicit !== state.useDecoder._baseState.implicit) {
+    state.useDecoder = state.useDecoder.clone();
+    state.useDecoder._baseState.implicit = state.implicit;
+  }
+  return state.useDecoder;
 };
 
-Point.prototype._projDbl = function _projDbl() {
-  // hyperelliptic.org/EFD/g1p/auto-twisted-projective.html
-  //     #doubling-dbl-2008-bbjlp
-  //     #doubling-dbl-2007-bl
-  // and others
-  // Generally 3M + 4S or 2M + 4S
+Node.prototype._decodeChoice = function decodeChoice(input, options) {
+  var state = this._baseState;
+  var result = null;
+  var match = false;
 
-  // B = (X1 + Y1)^2
-  var b = this.x.redAdd(this.y).redSqr();
-  // C = X1^2
-  var c = this.x.redSqr();
-  // D = Y1^2
-  var d = this.y.redSqr();
+  Object.keys(state.choice).some(function(key) {
+    var save = input.save();
+    var node = state.choice[key];
+    try {
+      var value = node._decode(input, options);
+      if (input.isError(value))
+        return false;
 
-  var nx;
-  var ny;
-  var nz;
-  if (this.curve.twisted) {
-    // E = a * C
-    var e = this.curve._mulA(c);
-    // F = E + D
-    var f = e.redAdd(d);
-    if (this.zOne) {
-      // X3 = (B - C - D) * (F - 2)
-      nx = b.redSub(c).redSub(d).redMul(f.redSub(this.curve.two));
-      // Y3 = F * (E - D)
-      ny = f.redMul(e.redSub(d));
-      // Z3 = F^2 - 2 * F
-      nz = f.redSqr().redSub(f).redSub(f);
-    } else {
-      // H = Z1^2
-      var h = this.z.redSqr();
-      // J = F - 2 * H
-      var j = f.redSub(h).redISub(h);
-      // X3 = (B-C-D)*J
-      nx = b.redSub(c).redISub(d).redMul(j);
-      // Y3 = F * (E - D)
-      ny = f.redMul(e.redSub(d));
-      // Z3 = F * J
-      nz = f.redMul(j);
+      result = { type: key, value: value };
+      match = true;
+    } catch (e) {
+      input.restore(save);
+      return false;
     }
-  } else {
-    // E = C + D
-    var e = c.redAdd(d);
-    // H = (c * Z1)^2
-    var h = this.curve._mulC(this.c.redMul(this.z)).redSqr();
-    // J = E - 2 * H
-    var j = e.redSub(h).redSub(h);
-    // X3 = c * (B - E) * J
-    nx = this.curve._mulC(b.redISub(e)).redMul(j);
-    // Y3 = c * E * (C - D)
-    ny = this.curve._mulC(e).redMul(c.redISub(d));
-    // Z3 = E * J
-    nz = e.redMul(j);
-  }
-  return this.curve.point(nx, ny, nz);
-};
+    return true;
+  }, this);
 
-Point.prototype.dbl = function dbl() {
-  if (this.isInfinity())
-    return this;
+  if (!match)
+    return input.error('Choice not matched');
 
-  // Double in extended coordinates
-  if (this.curve.extended)
-    return this._extDbl();
-  else
-    return this._projDbl();
+  return result;
 };
 
-Point.prototype._extAdd = function _extAdd(p) {
-  // hyperelliptic.org/EFD/g1p/auto-twisted-extended-1.html
-  //     #addition-add-2008-hwcd-3
-  // 8M
+//
+// Encoding
+//
 
-  // A = (Y1 - X1) * (Y2 - X2)
-  var a = this.y.redSub(this.x).redMul(p.y.redSub(p.x));
-  // B = (Y1 + X1) * (Y2 + X2)
-  var b = this.y.redAdd(this.x).redMul(p.y.redAdd(p.x));
-  // C = T1 * k * T2
-  var c = this.t.redMul(this.curve.dd).redMul(p.t);
-  // D = Z1 * 2 * Z2
-  var d = this.z.redMul(p.z.redAdd(p.z));
-  // E = B - A
-  var e = b.redSub(a);
-  // F = D - C
-  var f = d.redSub(c);
-  // G = D + C
-  var g = d.redAdd(c);
-  // H = B + A
-  var h = b.redAdd(a);
-  // X3 = E * F
-  var nx = e.redMul(f);
-  // Y3 = G * H
-  var ny = g.redMul(h);
-  // T3 = E * H
-  var nt = e.redMul(h);
-  // Z3 = F * G
-  var nz = f.redMul(g);
-  return this.curve.point(nx, ny, nz, nt);
+Node.prototype._createEncoderBuffer = function createEncoderBuffer(data) {
+  return new EncoderBuffer(data, this.reporter);
 };
 
-Point.prototype._projAdd = function _projAdd(p) {
-  // hyperelliptic.org/EFD/g1p/auto-twisted-projective.html
-  //     #addition-add-2008-bbjlp
-  //     #addition-add-2007-bl
-  // 10M + 1S
+Node.prototype._encode = function encode(data, reporter, parent) {
+  var state = this._baseState;
+  if (state['default'] !== null && state['default'] === data)
+    return;
 
-  // A = Z1 * Z2
-  var a = this.z.redMul(p.z);
-  // B = A^2
-  var b = a.redSqr();
-  // C = X1 * X2
-  var c = this.x.redMul(p.x);
-  // D = Y1 * Y2
-  var d = this.y.redMul(p.y);
-  // E = d * C * D
-  var e = this.curve.d.redMul(c).redMul(d);
-  // F = B - E
-  var f = b.redSub(e);
-  // G = B + E
-  var g = b.redAdd(e);
-  // X3 = A * F * ((X1 + Y1) * (X2 + Y2) - C - D)
-  var tmp = this.x.redAdd(this.y).redMul(p.x.redAdd(p.y)).redISub(c).redISub(d);
-  var nx = a.redMul(f).redMul(tmp);
-  var ny;
-  var nz;
-  if (this.curve.twisted) {
-    // Y3 = A * G * (D - a * C)
-    ny = a.redMul(g).redMul(d.redSub(this.curve._mulA(c)));
-    // Z3 = F * G
-    nz = f.redMul(g);
-  } else {
-    // Y3 = A * G * (D - C)
-    ny = a.redMul(g).redMul(d.redSub(c));
-    // Z3 = c * F * G
-    nz = this.curve._mulC(f).redMul(g);
-  }
-  return this.curve.point(nx, ny, nz);
-};
+  var result = this._encodeValue(data, reporter, parent);
+  if (result === undefined)
+    return;
 
-Point.prototype.add = function add(p) {
-  if (this.isInfinity())
-    return p;
-  if (p.isInfinity())
-    return this;
+  if (this._skipDefault(result, reporter, parent))
+    return;
 
-  if (this.curve.extended)
-    return this._extAdd(p);
-  else
-    return this._projAdd(p);
+  return result;
 };
 
-Point.prototype.mul = function mul(k) {
-  if (this._hasDoubles(k))
-    return this.curve._fixedNafMul(this, k);
-  else
-    return this.curve._wnafMul(this, k);
-};
+Node.prototype._encodeValue = function encode(data, reporter, parent) {
+  var state = this._baseState;
 
-Point.prototype.mulAdd = function mulAdd(k1, p, k2) {
-  return this.curve._wnafMulAdd(1, [ this, p ], [ k1, k2 ], 2, false);
-};
+  // Decode root node
+  if (state.parent === null)
+    return state.children[0]._encode(data, reporter || new Reporter());
 
-Point.prototype.jmulAdd = function jmulAdd(k1, p, k2) {
-  return this.curve._wnafMulAdd(1, [ this, p ], [ k1, k2 ], 2, true);
-};
+  var result = null;
 
-Point.prototype.normalize = function normalize() {
-  if (this.zOne)
-    return this;
+  // Set reporter to share it with a child class
+  this.reporter = reporter;
 
-  // Normalize coordinates
-  var zi = this.z.redInvm();
-  this.x = this.x.redMul(zi);
-  this.y = this.y.redMul(zi);
-  if (this.t)
-    this.t = this.t.redMul(zi);
-  this.z = this.curve.one;
-  this.zOne = true;
-  return this;
-};
+  // Check if data is there
+  if (state.optional && data === undefined) {
+    if (state['default'] !== null)
+      data = state['default']
+    else
+      return;
+  }
 
-Point.prototype.neg = function neg() {
-  return this.curve.point(this.x.redNeg(),
-                          this.y,
-                          this.z,
-                          this.t && this.t.redNeg());
-};
+  // Encode children first
+  var content = null;
+  var primitive = false;
+  if (state.any) {
+    // Anything that was given is translated to buffer
+    result = this._createEncoderBuffer(data);
+  } else if (state.choice) {
+    result = this._encodeChoice(data, reporter);
+  } else if (state.contains) {
+    content = this._getUse(state.contains, parent)._encode(data, reporter);
+    primitive = true;
+  } else if (state.children) {
+    content = state.children.map(function(child) {
+      if (child._baseState.tag === 'null_')
+        return child._encode(null, reporter, data);
 
-Point.prototype.getX = function getX() {
-  this.normalize();
-  return this.x.fromRed();
-};
+      if (child._baseState.key === null)
+        return reporter.error('Child should have a key');
+      var prevKey = reporter.enterKey(child._baseState.key);
 
-Point.prototype.getY = function getY() {
-  this.normalize();
-  return this.y.fromRed();
-};
+      if (typeof data !== 'object')
+        return reporter.error('Child expected, but input is not object');
 
-Point.prototype.eq = function eq(other) {
-  return this === other ||
-         this.getX().cmp(other.getX()) === 0 &&
-         this.getY().cmp(other.getY()) === 0;
-};
+      var res = child._encode(data[child._baseState.key], reporter, data);
+      reporter.leaveKey(prevKey);
 
-Point.prototype.eqXToP = function eqXToP(x) {
-  var rx = x.toRed(this.curve.red).redMul(this.z);
-  if (this.x.cmp(rx) === 0)
-    return true;
+      return res;
+    }, this).filter(function(child) {
+      return child;
+    });
+    content = this._createEncoderBuffer(content);
+  } else {
+    if (state.tag === 'seqof' || state.tag === 'setof') {
+      // TODO(indutny): this should be thrown on DSL level
+      if (!(state.args && state.args.length === 1))
+        return reporter.error('Too many args for : ' + state.tag);
 
-  var xc = x.clone();
-  var t = this.curve.redN.redMul(this.z);
-  for (;;) {
-    xc.iadd(this.curve.n);
-    if (xc.cmp(this.curve.p) >= 0)
-      return false;
+      if (!Array.isArray(data))
+        return reporter.error('seqof/setof, but data is not Array');
 
-    rx.redIAdd(t);
-    if (this.x.cmp(rx) === 0)
-      return true;
-  }
-  return false;
-};
+      var child = this.clone();
+      child._baseState.implicit = null;
+      content = this._createEncoderBuffer(data.map(function(item) {
+        var state = this._baseState;
 
-// Compatibility with BaseCurve
-Point.prototype.toP = Point.prototype.normalize;
-Point.prototype.mixedAdd = Point.prototype.add;
+        return this._getUse(state.args[0], data)._encode(item, reporter);
+      }, child));
+    } else if (state.use !== null) {
+      result = this._getUse(state.use, parent)._encode(data, reporter);
+    } else {
+      content = this._encodePrimitive(state.tag, data);
+      primitive = true;
+    }
+  }
 
-},{"../../elliptic":97,"../curve":100,"bn.js":81,"inherits":121}],100:[function(require,module,exports){
-'use strict';
+  // Encode data itself
+  var result;
+  if (!state.any && state.choice === null) {
+    var tag = state.implicit !== null ? state.implicit : state.tag;
+    var cls = state.implicit === null ? 'universal' : 'context';
 
-var curve = exports;
+    if (tag === null) {
+      if (state.use === null)
+        reporter.error('Tag could be ommited only for .use()');
+    } else {
+      if (state.use === null)
+        result = this._encodeComposite(tag, primitive, cls, content);
+    }
+  }
 
-curve.base = require('./base');
-curve.short = require('./short');
-curve.mont = require('./mont');
-curve.edwards = require('./edwards');
+  // Wrap in explicit
+  if (state.explicit !== null)
+    result = this._encodeComposite(state.explicit, false, 'context', result);
 
-},{"./base":98,"./edwards":99,"./mont":101,"./short":102}],101:[function(require,module,exports){
-'use strict';
+  return result;
+};
 
-var curve = require('../curve');
-var BN = require('bn.js');
-var inherits = require('inherits');
-var Base = curve.base;
+Node.prototype._encodeChoice = function encodeChoice(data, reporter) {
+  var state = this._baseState;
 
-var elliptic = require('../../elliptic');
-var utils = elliptic.utils;
+  var node = state.choice[data.type];
+  if (!node) {
+    assert(
+        false,
+        data.type + ' not found in ' +
+            JSON.stringify(Object.keys(state.choice)));
+  }
+  return node._encode(data.value, reporter);
+};
 
-function MontCurve(conf) {
-  Base.call(this, 'mont', conf);
+Node.prototype._encodePrimitive = function encodePrimitive(tag, data) {
+  var state = this._baseState;
 
-  this.a = new BN(conf.a, 16).toRed(this.red);
-  this.b = new BN(conf.b, 16).toRed(this.red);
-  this.i4 = new BN(4).toRed(this.red).redInvm();
-  this.two = new BN(2).toRed(this.red);
-  this.a24 = this.i4.redMul(this.a.redAdd(this.two));
-}
-inherits(MontCurve, Base);
-module.exports = MontCurve;
+  if (/str$/.test(tag))
+    return this._encodeStr(data, tag);
+  else if (tag === 'objid' && state.args)
+    return this._encodeObjid(data, state.reverseArgs[0], state.args[1]);
+  else if (tag === 'objid')
+    return this._encodeObjid(data, null, null);
+  else if (tag === 'gentime' || tag === 'utctime')
+    return this._encodeTime(data, tag);
+  else if (tag === 'null_')
+    return this._encodeNull();
+  else if (tag === 'int' || tag === 'enum')
+    return this._encodeInt(data, state.args && state.reverseArgs[0]);
+  else if (tag === 'bool')
+    return this._encodeBool(data);
+  else if (tag === 'objDesc')
+    return this._encodeStr(data, tag);
+  else
+    throw new Error('Unsupported tag: ' + tag);
+};
 
-MontCurve.prototype.validate = function validate(point) {
-  var x = point.normalize().x;
-  var x2 = x.redSqr();
-  var rhs = x2.redMul(x).redAdd(x2.redMul(this.a)).redAdd(x);
-  var y = rhs.redSqrt();
+Node.prototype._isNumstr = function isNumstr(str) {
+  return /^[0-9 ]*$/.test(str);
+};
 
-  return y.redSqr().cmp(rhs) === 0;
+Node.prototype._isPrintstr = function isPrintstr(str) {
+  return /^[A-Za-z0-9 '\(\)\+,\-\.\/:=\?]*$/.test(str);
 };
 
-function Point(curve, x, z) {
-  Base.BasePoint.call(this, curve, 'projective');
-  if (x === null && z === null) {
-    this.x = this.curve.one;
-    this.z = this.curve.zero;
-  } else {
-    this.x = new BN(x, 16);
-    this.z = new BN(z, 16);
-    if (!this.x.red)
-      this.x = this.x.toRed(this.curve.red);
-    if (!this.z.red)
-      this.z = this.z.toRed(this.curve.red);
-  }
+},{"../base":4,"minimalistic-assert":99}],6:[function(require,module,exports){
+var inherits = require('inherits');
+
+function Reporter(options) {
+  this._reporterState = {
+    obj: null,
+    path: [],
+    options: options || {},
+    errors: []
+  };
 }
-inherits(Point, Base.BasePoint);
+exports.Reporter = Reporter;
 
-MontCurve.prototype.decodePoint = function decodePoint(bytes, enc) {
-  return this.point(utils.toArray(bytes, enc), 1);
+Reporter.prototype.isError = function isError(obj) {
+  return obj instanceof ReporterError;
 };
 
-MontCurve.prototype.point = function point(x, z) {
-  return new Point(this, x, z);
-};
+Reporter.prototype.save = function save() {
+  var state = this._reporterState;
 
-MontCurve.prototype.pointFromJSON = function pointFromJSON(obj) {
-  return Point.fromJSON(this, obj);
+  return { obj: state.obj, pathLen: state.path.length };
 };
 
-Point.prototype.precompute = function precompute() {
-  // No-op
-};
+Reporter.prototype.restore = function restore(data) {
+  var state = this._reporterState;
 
-Point.prototype._encode = function _encode() {
-  return this.getX().toArray('be', this.curve.p.byteLength());
+  state.obj = data.obj;
+  state.path = state.path.slice(0, data.pathLen);
 };
 
-Point.fromJSON = function fromJSON(curve, obj) {
-  return new Point(curve, obj[0], obj[1] || curve.one);
+Reporter.prototype.enterKey = function enterKey(key) {
+  return this._reporterState.path.push(key);
 };
 
-Point.prototype.inspect = function inspect() {
-  if (this.isInfinity())
-    return '<EC Point Infinity>';
-  return '<EC Point x: ' + this.x.fromRed().toString(16, 2) +
-      ' z: ' + this.z.fromRed().toString(16, 2) + '>';
-};
+Reporter.prototype.exitKey = function exitKey(index) {
+  var state = this._reporterState;
 
-Point.prototype.isInfinity = function isInfinity() {
-  // XXX This code assumes that zero is always zero in red
-  return this.z.cmpn(0) === 0;
+  state.path = state.path.slice(0, index - 1);
 };
 
-Point.prototype.dbl = function dbl() {
-  // http://hyperelliptic.org/EFD/g1p/auto-montgom-xz.html#doubling-dbl-1987-m-3
-  // 2M + 2S + 4A
+Reporter.prototype.leaveKey = function leaveKey(index, key, value) {
+  var state = this._reporterState;
 
-  // A = X1 + Z1
-  var a = this.x.redAdd(this.z);
-  // AA = A^2
-  var aa = a.redSqr();
-  // B = X1 - Z1
-  var b = this.x.redSub(this.z);
-  // BB = B^2
-  var bb = b.redSqr();
-  // C = AA - BB
-  var c = aa.redSub(bb);
-  // X3 = AA * BB
-  var nx = aa.redMul(bb);
-  // Z3 = C * (BB + A24 * C)
-  var nz = c.redMul(bb.redAdd(this.curve.a24.redMul(c)));
-  return this.curve.point(nx, nz);
+  this.exitKey(index);
+  if (state.obj !== null)
+    state.obj[key] = value;
 };
 
-Point.prototype.add = function add() {
-  throw new Error('Not supported on Montgomery curve');
+Reporter.prototype.path = function path() {
+  return this._reporterState.path.join('/');
 };
 
-Point.prototype.diffAdd = function diffAdd(p, diff) {
-  // http://hyperelliptic.org/EFD/g1p/auto-montgom-xz.html#diffadd-dadd-1987-m-3
-  // 4M + 2S + 6A
+Reporter.prototype.enterObject = function enterObject() {
+  var state = this._reporterState;
 
-  // A = X2 + Z2
-  var a = this.x.redAdd(this.z);
-  // B = X2 - Z2
-  var b = this.x.redSub(this.z);
-  // C = X3 + Z3
-  var c = p.x.redAdd(p.z);
-  // D = X3 - Z3
-  var d = p.x.redSub(p.z);
-  // DA = D * A
-  var da = d.redMul(a);
-  // CB = C * B
-  var cb = c.redMul(b);
-  // X5 = Z1 * (DA + CB)^2
-  var nx = diff.z.redMul(da.redAdd(cb).redSqr());
-  // Z5 = X1 * (DA - CB)^2
-  var nz = diff.x.redMul(da.redISub(cb).redSqr());
-  return this.curve.point(nx, nz);
+  var prev = state.obj;
+  state.obj = {};
+  return prev;
 };
 
-Point.prototype.mul = function mul(k) {
-  var t = k.clone();
-  var a = this; // (N / 2) * Q + Q
-  var b = this.curve.point(null, null); // (N / 2) * Q
-  var c = this; // Q
+Reporter.prototype.leaveObject = function leaveObject(prev) {
+  var state = this._reporterState;
 
-  for (var bits = []; t.cmpn(0) !== 0; t.iushrn(1))
-    bits.push(t.andln(1));
+  var now = state.obj;
+  state.obj = prev;
+  return now;
+};
 
-  for (var i = bits.length - 1; i >= 0; i--) {
-    if (bits[i] === 0) {
-      // N * Q + Q = ((N / 2) * Q + Q)) + (N / 2) * Q
-      a = a.diffAdd(b, c);
-      // N * Q = 2 * ((N / 2) * Q + Q))
-      b = b.dbl();
-    } else {
-      // N * Q = ((N / 2) * Q + Q) + ((N / 2) * Q)
-      b = a.diffAdd(b, c);
-      // N * Q + Q = 2 * ((N / 2) * Q + Q)
-      a = a.dbl();
-    }
+Reporter.prototype.error = function error(msg) {
+  var err;
+  var state = this._reporterState;
+
+  var inherited = msg instanceof ReporterError;
+  if (inherited) {
+    err = msg;
+  } else {
+    err = new ReporterError(state.path.map(function(elem) {
+      return '[' + JSON.stringify(elem) + ']';
+    }).join(''), msg.message || msg, msg.stack);
   }
-  return b;
-};
 
-Point.prototype.mulAdd = function mulAdd() {
-  throw new Error('Not supported on Montgomery curve');
+  if (!state.options.partial)
+    throw err;
+
+  if (!inherited)
+    state.errors.push(err);
+
+  return err;
 };
 
-Point.prototype.jumlAdd = function jumlAdd() {
-  throw new Error('Not supported on Montgomery curve');
+Reporter.prototype.wrapResult = function wrapResult(result) {
+  var state = this._reporterState;
+  if (!state.options.partial)
+    return result;
+
+  return {
+    result: this.isError(result) ? null : result,
+    errors: state.errors
+  };
 };
 
-Point.prototype.eq = function eq(other) {
-  return this.getX().cmp(other.getX()) === 0;
+function ReporterError(path, msg) {
+  this.path = path;
+  this.rethrow(msg);
 };
+inherits(ReporterError, Error);
 
-Point.prototype.normalize = function normalize() {
-  this.x = this.x.redMul(this.z.redInvm());
-  this.z = this.curve.one;
+ReporterError.prototype.rethrow = function rethrow(msg) {
+  this.message = msg + ' at: ' + (this.path || '(shallow)');
+  if (Error.captureStackTrace)
+    Error.captureStackTrace(this, ReporterError);
+
+  if (!this.stack) {
+    try {
+      // IE only adds stack when thrown
+      throw new Error(this.message);
+    } catch (e) {
+      this.stack = e.stack;
+    }
+  }
   return this;
 };
 
-Point.prototype.getX = function getX() {
-  // Normalize coordinates
-  this.normalize();
+},{"inherits":95}],7:[function(require,module,exports){
+var constants = require('../constants');
 
-  return this.x.fromRed();
+exports.tagClass = {
+  0: 'universal',
+  1: 'application',
+  2: 'context',
+  3: 'private'
 };
+exports.tagClassByName = constants._reverse(exports.tagClass);
 
-},{"../../elliptic":97,"../curve":100,"bn.js":81,"inherits":121}],102:[function(require,module,exports){
-'use strict';
+exports.tag = {
+  0x00: 'end',
+  0x01: 'bool',
+  0x02: 'int',
+  0x03: 'bitstr',
+  0x04: 'octstr',
+  0x05: 'null_',
+  0x06: 'objid',
+  0x07: 'objDesc',
+  0x08: 'external',
+  0x09: 'real',
+  0x0a: 'enum',
+  0x0b: 'embed',
+  0x0c: 'utf8str',
+  0x0d: 'relativeOid',
+  0x10: 'seq',
+  0x11: 'set',
+  0x12: 'numstr',
+  0x13: 'printstr',
+  0x14: 't61str',
+  0x15: 'videostr',
+  0x16: 'ia5str',
+  0x17: 'utctime',
+  0x18: 'gentime',
+  0x19: 'graphstr',
+  0x1a: 'iso646str',
+  0x1b: 'genstr',
+  0x1c: 'unistr',
+  0x1d: 'charstr',
+  0x1e: 'bmpstr'
+};
+exports.tagByName = constants._reverse(exports.tag);
 
-var curve = require('../curve');
-var elliptic = require('../../elliptic');
-var BN = require('bn.js');
-var inherits = require('inherits');
-var Base = curve.base;
+},{"../constants":8}],8:[function(require,module,exports){
+var constants = exports;
 
-var assert = elliptic.utils.assert;
+// Helper
+constants._reverse = function reverse(map) {
+  var res = {};
 
-function ShortCurve(conf) {
-  Base.call(this, 'short', conf);
+  Object.keys(map).forEach(function(key) {
+    // Convert key to integer if it is stringified
+    if ((key | 0) == key)
+      key = key | 0;
 
-  this.a = new BN(conf.a, 16).toRed(this.red);
-  this.b = new BN(conf.b, 16).toRed(this.red);
-  this.tinv = this.two.redInvm();
+    var value = map[key];
+    res[value] = key;
+  });
 
-  this.zeroA = this.a.fromRed().cmpn(0) === 0;
-  this.threeA = this.a.fromRed().sub(this.p).cmpn(-3) === 0;
+  return res;
+};
 
-  // If the curve is endomorphic, precalculate beta and lambda
-  this.endo = this._getEndomorphism(conf);
-  this._endoWnafT1 = new Array(4);
-  this._endoWnafT2 = new Array(4);
-}
-inherits(ShortCurve, Base);
-module.exports = ShortCurve;
+constants.der = require('./der');
 
-ShortCurve.prototype._getEndomorphism = function _getEndomorphism(conf) {
-  // No efficient endomorphism
-  if (!this.zeroA || !this.g || !this.n || this.p.modn(3) !== 1)
-    return;
+},{"./der":7}],9:[function(require,module,exports){
+var inherits = require('inherits');
 
-  // Compute beta and lambda, that lambda * P = (beta * Px; Py)
-  var beta;
-  var lambda;
-  if (conf.beta) {
-    beta = new BN(conf.beta, 16).toRed(this.red);
-  } else {
-    var betas = this._getEndoRoots(this.p);
-    // Choose the smallest beta
-    beta = betas[0].cmp(betas[1]) < 0 ? betas[0] : betas[1];
-    beta = beta.toRed(this.red);
-  }
-  if (conf.lambda) {
-    lambda = new BN(conf.lambda, 16);
-  } else {
-    // Choose the lambda that is matching selected beta
-    var lambdas = this._getEndoRoots(this.n);
-    if (this.g.mul(lambdas[0]).x.cmp(this.g.x.redMul(beta)) === 0) {
-      lambda = lambdas[0];
-    } else {
-      lambda = lambdas[1];
-      assert(this.g.mul(lambda).x.cmp(this.g.x.redMul(beta)) === 0);
-    }
-  }
+var asn1 = require('../../asn1');
+var base = asn1.base;
+var bignum = asn1.bignum;
 
-  // Get basis vectors, used for balanced length-two representation
-  var basis;
-  if (conf.basis) {
-    basis = conf.basis.map(function(vec) {
-      return {
-        a: new BN(vec.a, 16),
-        b: new BN(vec.b, 16)
-      };
-    });
-  } else {
-    basis = this._getEndoBasis(lambda);
-  }
+// Import DER constants
+var der = asn1.constants.der;
 
-  return {
-    beta: beta,
-    lambda: lambda,
-    basis: basis
-  };
+function DERDecoder(entity) {
+  this.enc = 'der';
+  this.name = entity.name;
+  this.entity = entity;
+
+  // Construct base tree
+  this.tree = new DERNode();
+  this.tree._init(entity.body);
 };
+module.exports = DERDecoder;
 
-ShortCurve.prototype._getEndoRoots = function _getEndoRoots(num) {
-  // Find roots of for x^2 + x + 1 in F
-  // Root = (-1 +- Sqrt(-3)) / 2
-  //
-  var red = num === this.p ? this.red : BN.mont(num);
-  var tinv = new BN(2).toRed(red).redInvm();
-  var ntinv = tinv.redNeg();
+DERDecoder.prototype.decode = function decode(data, options) {
+  if (!(data instanceof base.DecoderBuffer))
+    data = new base.DecoderBuffer(data, options);
 
-  var s = new BN(3).toRed(red).redNeg().redSqrt().redMul(tinv);
-
-  var l1 = ntinv.redAdd(s).fromRed();
-  var l2 = ntinv.redSub(s).fromRed();
-  return [ l1, l2 ];
+  return this.tree._decode(data, options);
 };
 
-ShortCurve.prototype._getEndoBasis = function _getEndoBasis(lambda) {
-  // aprxSqrt >= sqrt(this.n)
-  var aprxSqrt = this.n.ushrn(Math.floor(this.n.bitLength() / 2));
+// Tree methods
 
-  // 3.74
-  // Run EGCD, until r(L + 1) < aprxSqrt
-  var u = lambda;
-  var v = this.n.clone();
-  var x1 = new BN(1);
-  var y1 = new BN(0);
-  var x2 = new BN(0);
-  var y2 = new BN(1);
+function DERNode(parent) {
+  base.Node.call(this, 'der', parent);
+}
+inherits(DERNode, base.Node);
 
-  // NOTE: all vectors are roots of: a + b * lambda = 0 (mod n)
-  var a0;
-  var b0;
-  // First vector
-  var a1;
-  var b1;
-  // Second vector
-  var a2;
-  var b2;
+DERNode.prototype._peekTag = function peekTag(buffer, tag, any) {
+  if (buffer.isEmpty())
+    return false;
 
-  var prevR;
-  var i = 0;
-  var r;
-  var x;
-  while (u.cmpn(0) !== 0) {
-    var q = v.div(u);
-    r = v.sub(q.mul(u));
-    x = x2.sub(q.mul(x1));
-    var y = y2.sub(q.mul(y1));
+  var state = buffer.save();
+  var decodedTag = derDecodeTag(buffer, 'Failed to peek tag: "' + tag + '"');
+  if (buffer.isError(decodedTag))
+    return decodedTag;
 
-    if (!a1 && r.cmp(aprxSqrt) < 0) {
-      a0 = prevR.neg();
-      b0 = x1;
-      a1 = r.neg();
-      b1 = x;
-    } else if (a1 && ++i === 2) {
-      break;
-    }
-    prevR = r;
+  buffer.restore(state);
 
-    v = u;
-    u = r;
-    x2 = x1;
-    x1 = x;
-    y2 = y1;
-    y1 = y;
-  }
-  a2 = r.neg();
-  b2 = x;
+  return decodedTag.tag === tag || decodedTag.tagStr === tag ||
+    (decodedTag.tagStr + 'of') === tag || any;
+};
 
-  var len1 = a1.sqr().add(b1.sqr());
-  var len2 = a2.sqr().add(b2.sqr());
-  if (len2.cmp(len1) >= 0) {
-    a2 = a0;
-    b2 = b0;
-  }
+DERNode.prototype._decodeTag = function decodeTag(buffer, tag, any) {
+  var decodedTag = derDecodeTag(buffer,
+                                'Failed to decode tag of "' + tag + '"');
+  if (buffer.isError(decodedTag))
+    return decodedTag;
 
-  // Normalize signs
-  if (a1.negative) {
-    a1 = a1.neg();
-    b1 = b1.neg();
-  }
-  if (a2.negative) {
-    a2 = a2.neg();
-    b2 = b2.neg();
-  }
+  var len = derDecodeLen(buffer,
+                         decodedTag.primitive,
+                         'Failed to get length of "' + tag + '"');
 
-  return [
-    { a: a1, b: b1 },
-    { a: a2, b: b2 }
-  ];
-};
+  // Failure
+  if (buffer.isError(len))
+    return len;
 
-ShortCurve.prototype._endoSplit = function _endoSplit(k) {
-  var basis = this.endo.basis;
-  var v1 = basis[0];
-  var v2 = basis[1];
+  if (!any &&
+      decodedTag.tag !== tag &&
+      decodedTag.tagStr !== tag &&
+      decodedTag.tagStr + 'of' !== tag) {
+    return buffer.error('Failed to match tag: "' + tag + '"');
+  }
 
-  var c1 = v2.b.mul(k).divRound(this.n);
-  var c2 = v1.b.neg().mul(k).divRound(this.n);
+  if (decodedTag.primitive || len !== null)
+    return buffer.skip(len, 'Failed to match body of: "' + tag + '"');
 
-  var p1 = c1.mul(v1.a);
-  var p2 = c2.mul(v2.a);
-  var q1 = c1.mul(v1.b);
-  var q2 = c2.mul(v2.b);
+  // Indefinite length... find END tag
+  var state = buffer.save();
+  var res = this._skipUntilEnd(
+      buffer,
+      'Failed to skip indefinite length body: "' + this.tag + '"');
+  if (buffer.isError(res))
+    return res;
 
-  // Calculate answer
-  var k1 = k.sub(p1).sub(p2);
-  var k2 = q1.add(q2).neg();
-  return { k1: k1, k2: k2 };
+  len = buffer.offset - state.offset;
+  buffer.restore(state);
+  return buffer.skip(len, 'Failed to match body of: "' + tag + '"');
 };
 
-ShortCurve.prototype.pointFromX = function pointFromX(x, odd) {
-  x = new BN(x, 16);
-  if (!x.red)
-    x = x.toRed(this.red);
+DERNode.prototype._skipUntilEnd = function skipUntilEnd(buffer, fail) {
+  while (true) {
+    var tag = derDecodeTag(buffer, fail);
+    if (buffer.isError(tag))
+      return tag;
+    var len = derDecodeLen(buffer, tag.primitive, fail);
+    if (buffer.isError(len))
+      return len;
 
-  var y2 = x.redSqr().redMul(x).redIAdd(x.redMul(this.a)).redIAdd(this.b);
-  var y = y2.redSqrt();
-  if (y.redSqr().redSub(y2).cmp(this.zero) !== 0)
-    throw new Error('invalid point');
+    var res;
+    if (tag.primitive || len !== null)
+      res = buffer.skip(len)
+    else
+      res = this._skipUntilEnd(buffer, fail);
 
-  // XXX Is there any way to tell if the number is odd without converting it
-  // to non-red form?
-  var isOdd = y.fromRed().isOdd();
-  if (odd && !isOdd || !odd && isOdd)
-    y = y.redNeg();
+    // Failure
+    if (buffer.isError(res))
+      return res;
 
-  return this.point(x, y);
+    if (tag.tagStr === 'end')
+      break;
+  }
 };
 
-ShortCurve.prototype.validate = function validate(point) {
-  if (point.inf)
-    return true;
-
-  var x = point.x;
-  var y = point.y;
+DERNode.prototype._decodeList = function decodeList(buffer, tag, decoder,
+                                                    options) {
+  var result = [];
+  while (!buffer.isEmpty()) {
+    var possibleEnd = this._peekTag(buffer, 'end');
+    if (buffer.isError(possibleEnd))
+      return possibleEnd;
 
-  var ax = this.a.redMul(x);
-  var rhs = x.redSqr().redMul(x).redIAdd(ax).redIAdd(this.b);
-  return y.redSqr().redISub(rhs).cmpn(0) === 0;
+    var res = decoder.decode(buffer, 'der', options);
+    if (buffer.isError(res) && possibleEnd)
+      break;
+    result.push(res);
+  }
+  return result;
 };
 
-ShortCurve.prototype._endoWnafMulAdd =
-    function _endoWnafMulAdd(points, coeffs, jacobianResult) {
-  var npoints = this._endoWnafT1;
-  var ncoeffs = this._endoWnafT2;
-  for (var i = 0; i < points.length; i++) {
-    var split = this._endoSplit(coeffs[i]);
-    var p = points[i];
-    var beta = p._getBeta();
+DERNode.prototype._decodeStr = function decodeStr(buffer, tag) {
+  if (tag === 'bitstr') {
+    var unused = buffer.readUInt8();
+    if (buffer.isError(unused))
+      return unused;
+    return { unused: unused, data: buffer.raw() };
+  } else if (tag === 'bmpstr') {
+    var raw = buffer.raw();
+    if (raw.length % 2 === 1)
+      return buffer.error('Decoding of string type: bmpstr length mismatch');
 
-    if (split.k1.negative) {
-      split.k1.ineg();
-      p = p.neg(true);
+    var str = '';
+    for (var i = 0; i < raw.length / 2; i++) {
+      str += String.fromCharCode(raw.readUInt16BE(i * 2));
     }
-    if (split.k2.negative) {
-      split.k2.ineg();
-      beta = beta.neg(true);
+    return str;
+  } else if (tag === 'numstr') {
+    var numstr = buffer.raw().toString('ascii');
+    if (!this._isNumstr(numstr)) {
+      return buffer.error('Decoding of string type: ' +
+                          'numstr unsupported characters');
     }
-
-    npoints[i * 2] = p;
-    npoints[i * 2 + 1] = beta;
-    ncoeffs[i * 2] = split.k1;
-    ncoeffs[i * 2 + 1] = split.k2;
-  }
-  var res = this._wnafMulAdd(1, npoints, ncoeffs, i * 2, jacobianResult);
-
-  // Clean-up references to points and coefficients
-  for (var j = 0; j < i * 2; j++) {
-    npoints[j] = null;
-    ncoeffs[j] = null;
+    return numstr;
+  } else if (tag === 'octstr') {
+    return buffer.raw();
+  } else if (tag === 'objDesc') {
+    return buffer.raw();
+  } else if (tag === 'printstr') {
+    var printstr = buffer.raw().toString('ascii');
+    if (!this._isPrintstr(printstr)) {
+      return buffer.error('Decoding of string type: ' +
+                          'printstr unsupported characters');
+    }
+    return printstr;
+  } else if (/str$/.test(tag)) {
+    return buffer.raw().toString();
+  } else {
+    return buffer.error('Decoding of string type: ' + tag + ' unsupported');
   }
-  return res;
 };
 
-function Point(curve, x, y, isRed) {
-  Base.BasePoint.call(this, curve, 'affine');
-  if (x === null && y === null) {
-    this.x = null;
-    this.y = null;
-    this.inf = true;
-  } else {
-    this.x = new BN(x, 16);
-    this.y = new BN(y, 16);
-    // Force redgomery representation when loading from JSON
-    if (isRed) {
-      this.x.forceRed(this.curve.red);
-      this.y.forceRed(this.curve.red);
+DERNode.prototype._decodeObjid = function decodeObjid(buffer, values, relative) {
+  var result;
+  var identifiers = [];
+  var ident = 0;
+  while (!buffer.isEmpty()) {
+    var subident = buffer.readUInt8();
+    ident <<= 7;
+    ident |= subident & 0x7f;
+    if ((subident & 0x80) === 0) {
+      identifiers.push(ident);
+      ident = 0;
     }
-    if (!this.x.red)
-      this.x = this.x.toRed(this.curve.red);
-    if (!this.y.red)
-      this.y = this.y.toRed(this.curve.red);
-    this.inf = false;
   }
-}
-inherits(Point, Base.BasePoint);
+  if (subident & 0x80)
+    identifiers.push(ident);
 
-ShortCurve.prototype.point = function point(x, y, isRed) {
-  return new Point(this, x, y, isRed);
-};
+  var first = (identifiers[0] / 40) | 0;
+  var second = identifiers[0] % 40;
 
-ShortCurve.prototype.pointFromJSON = function pointFromJSON(obj, red) {
-  return Point.fromJSON(this, obj, red);
-};
+  if (relative)
+    result = identifiers;
+  else
+    result = [first, second].concat(identifiers.slice(1));
 
-Point.prototype._getBeta = function _getBeta() {
-  if (!this.curve.endo)
-    return;
+  if (values) {
+    var tmp = values[result.join(' ')];
+    if (tmp === undefined)
+      tmp = values[result.join('.')];
+    if (tmp !== undefined)
+      result = tmp;
+  }
 
-  var pre = this.precomputed;
-  if (pre && pre.beta)
-    return pre.beta;
+  return result;
+};
 
-  var beta = this.curve.point(this.x.redMul(this.curve.endo.beta), this.y);
-  if (pre) {
-    var curve = this.curve;
-    var endoMul = function(p) {
-      return curve.point(p.x.redMul(curve.endo.beta), p.y);
-    };
-    pre.beta = beta;
-    beta.precomputed = {
-      beta: null,
-      naf: pre.naf && {
-        wnd: pre.naf.wnd,
-        points: pre.naf.points.map(endoMul)
-      },
-      doubles: pre.doubles && {
-        step: pre.doubles.step,
-        points: pre.doubles.points.map(endoMul)
-      }
-    };
+DERNode.prototype._decodeTime = function decodeTime(buffer, tag) {
+  var str = buffer.raw().toString();
+  if (tag === 'gentime') {
+    var year = str.slice(0, 4) | 0;
+    var mon = str.slice(4, 6) | 0;
+    var day = str.slice(6, 8) | 0;
+    var hour = str.slice(8, 10) | 0;
+    var min = str.slice(10, 12) | 0;
+    var sec = str.slice(12, 14) | 0;
+  } else if (tag === 'utctime') {
+    var year = str.slice(0, 2) | 0;
+    var mon = str.slice(2, 4) | 0;
+    var day = str.slice(4, 6) | 0;
+    var hour = str.slice(6, 8) | 0;
+    var min = str.slice(8, 10) | 0;
+    var sec = str.slice(10, 12) | 0;
+    if (year < 70)
+      year = 2000 + year;
+    else
+      year = 1900 + year;
+  } else {
+    return buffer.error('Decoding ' + tag + ' time is not supported yet');
   }
-  return beta;
-};
 
-Point.prototype.toJSON = function toJSON() {
-  if (!this.precomputed)
-    return [ this.x, this.y ];
+  return Date.UTC(year, mon - 1, day, hour, min, sec, 0);
+};
 
-  return [ this.x, this.y, this.precomputed && {
-    doubles: this.precomputed.doubles && {
-      step: this.precomputed.doubles.step,
-      points: this.precomputed.doubles.points.slice(1)
-    },
-    naf: this.precomputed.naf && {
-      wnd: this.precomputed.naf.wnd,
-      points: this.precomputed.naf.points.slice(1)
-    }
-  } ];
+DERNode.prototype._decodeNull = function decodeNull(buffer) {
+  return null;
 };
 
-Point.fromJSON = function fromJSON(curve, obj, red) {
-  if (typeof obj === 'string')
-    obj = JSON.parse(obj);
-  var res = curve.point(obj[0], obj[1], red);
-  if (!obj[2])
+DERNode.prototype._decodeBool = function decodeBool(buffer) {
+  var res = buffer.readUInt8();
+  if (buffer.isError(res))
     return res;
+  else
+    return res !== 0;
+};
 
-  function obj2point(obj) {
-    return curve.point(obj[0], obj[1], red);
-  }
+DERNode.prototype._decodeInt = function decodeInt(buffer, values) {
+  // Bigint, return as it is (assume big endian)
+  var raw = buffer.raw();
+  var res = new bignum(raw);
+
+  if (values)
+    res = values[res.toString(10)] || res;
 
-  var pre = obj[2];
-  res.precomputed = {
-    beta: null,
-    doubles: pre.doubles && {
-      step: pre.doubles.step,
-      points: [ res ].concat(pre.doubles.points.map(obj2point))
-    },
-    naf: pre.naf && {
-      wnd: pre.naf.wnd,
-      points: [ res ].concat(pre.naf.points.map(obj2point))
-    }
-  };
   return res;
 };
 
-Point.prototype.inspect = function inspect() {
-  if (this.isInfinity())
-    return '<EC Point Infinity>';
-  return '<EC Point x: ' + this.x.fromRed().toString(16, 2) +
-      ' y: ' + this.y.fromRed().toString(16, 2) + '>';
+DERNode.prototype._use = function use(entity, obj) {
+  if (typeof entity === 'function')
+    entity = entity(obj);
+  return entity._getDecoder('der').tree;
 };
 
-Point.prototype.isInfinity = function isInfinity() {
-  return this.inf;
-};
+// Utility methods
 
-Point.prototype.add = function add(p) {
-  // O + P = P
-  if (this.inf)
-    return p;
+function derDecodeTag(buf, fail) {
+  var tag = buf.readUInt8(fail);
+  if (buf.isError(tag))
+    return tag;
 
-  // P + O = P
-  if (p.inf)
-    return this;
+  var cls = der.tagClass[tag >> 6];
+  var primitive = (tag & 0x20) === 0;
 
-  // P + P = 2P
-  if (this.eq(p))
-    return this.dbl();
+  // Multi-octet tag - load
+  if ((tag & 0x1f) === 0x1f) {
+    var oct = tag;
+    tag = 0;
+    while ((oct & 0x80) === 0x80) {
+      oct = buf.readUInt8(fail);
+      if (buf.isError(oct))
+        return oct;
 
-  // P + (-P) = O
-  if (this.neg().eq(p))
-    return this.curve.point(null, null);
+      tag <<= 7;
+      tag |= oct & 0x7f;
+    }
+  } else {
+    tag &= 0x1f;
+  }
+  var tagStr = der.tag[tag];
 
-  // P + Q = O
-  if (this.x.cmp(p.x) === 0)
-    return this.curve.point(null, null);
+  return {
+    cls: cls,
+    primitive: primitive,
+    tag: tag,
+    tagStr: tagStr
+  };
+}
 
-  var c = this.y.redSub(p.y);
-  if (c.cmpn(0) !== 0)
-    c = c.redMul(this.x.redSub(p.x).redInvm());
-  var nx = c.redSqr().redISub(this.x).redISub(p.x);
-  var ny = c.redMul(this.x.redSub(nx)).redISub(this.y);
-  return this.curve.point(nx, ny);
-};
+function derDecodeLen(buf, primitive, fail) {
+  var len = buf.readUInt8(fail);
+  if (buf.isError(len))
+    return len;
 
-Point.prototype.dbl = function dbl() {
-  if (this.inf)
-    return this;
+  // Indefinite form
+  if (!primitive && len === 0x80)
+    return null;
 
-  // 2P = O
-  var ys1 = this.y.redAdd(this.y);
-  if (ys1.cmpn(0) === 0)
-    return this.curve.point(null, null);
+  // Definite form
+  if ((len & 0x80) === 0) {
+    // Short form
+    return len;
+  }
 
-  var a = this.curve.a;
+  // Long form
+  var num = len & 0x7f;
+  if (num > 4)
+    return buf.error('length octect is too long');
 
-  var x2 = this.x.redSqr();
-  var dyinv = ys1.redInvm();
-  var c = x2.redAdd(x2).redIAdd(x2).redIAdd(a).redMul(dyinv);
+  len = 0;
+  for (var i = 0; i < num; i++) {
+    len <<= 8;
+    var j = buf.readUInt8(fail);
+    if (buf.isError(j))
+      return j;
+    len |= j;
+  }
 
-  var nx = c.redSqr().redISub(this.x.redAdd(this.x));
-  var ny = c.redMul(this.x.redSub(nx)).redISub(this.y);
-  return this.curve.point(nx, ny);
-};
+  return len;
+}
 
-Point.prototype.getX = function getX() {
-  return this.x.fromRed();
-};
+},{"../../asn1":1,"inherits":95}],10:[function(require,module,exports){
+var decoders = exports;
 
-Point.prototype.getY = function getY() {
-  return this.y.fromRed();
-};
+decoders.der = require('./der');
+decoders.pem = require('./pem');
 
-Point.prototype.mul = function mul(k) {
-  k = new BN(k, 16);
+},{"./der":9,"./pem":11}],11:[function(require,module,exports){
+var inherits = require('inherits');
+var Buffer = require('buffer').Buffer;
 
-  if (this._hasDoubles(k))
-    return this.curve._fixedNafMul(this, k);
-  else if (this.curve.endo)
-    return this.curve._endoWnafMulAdd([ this ], [ k ]);
-  else
-    return this.curve._wnafMul(this, k);
-};
+var DERDecoder = require('./der');
 
-Point.prototype.mulAdd = function mulAdd(k1, p2, k2) {
-  var points = [ this, p2 ];
-  var coeffs = [ k1, k2 ];
-  if (this.curve.endo)
-    return this.curve._endoWnafMulAdd(points, coeffs);
-  else
-    return this.curve._wnafMulAdd(1, points, coeffs, 2);
+function PEMDecoder(entity) {
+  DERDecoder.call(this, entity);
+  this.enc = 'pem';
 };
+inherits(PEMDecoder, DERDecoder);
+module.exports = PEMDecoder;
 
-Point.prototype.jmulAdd = function jmulAdd(k1, p2, k2) {
-  var points = [ this, p2 ];
-  var coeffs = [ k1, k2 ];
-  if (this.curve.endo)
-    return this.curve._endoWnafMulAdd(points, coeffs, true);
-  else
-    return this.curve._wnafMulAdd(1, points, coeffs, 2, true);
-};
+PEMDecoder.prototype.decode = function decode(data, options) {
+  var lines = data.toString().split(/[\r\n]+/g);
 
-Point.prototype.eq = function eq(p) {
-  return this === p ||
-         this.inf === p.inf &&
-             (this.inf || this.x.cmp(p.x) === 0 && this.y.cmp(p.y) === 0);
-};
+  var label = options.label.toUpperCase();
 
-Point.prototype.neg = function neg(_precompute) {
-  if (this.inf)
-    return this;
+  var re = /^-----(BEGIN|END) ([^-]+)-----$/;
+  var start = -1;
+  var end = -1;
+  for (var i = 0; i < lines.length; i++) {
+    var match = lines[i].match(re);
+    if (match === null)
+      continue;
 
-  var res = this.curve.point(this.x, this.y.redNeg());
-  if (_precompute && this.precomputed) {
-    var pre = this.precomputed;
-    var negate = function(p) {
-      return p.neg();
-    };
-    res.precomputed = {
-      naf: pre.naf && {
-        wnd: pre.naf.wnd,
-        points: pre.naf.points.map(negate)
-      },
-      doubles: pre.doubles && {
-        step: pre.doubles.step,
-        points: pre.doubles.points.map(negate)
-      }
-    };
+    if (match[2] !== label)
+      continue;
+
+    if (start === -1) {
+      if (match[1] !== 'BEGIN')
+        break;
+      start = i;
+    } else {
+      if (match[1] !== 'END')
+        break;
+      end = i;
+      break;
+    }
   }
-  return res;
-};
+  if (start === -1 || end === -1)
+    throw new Error('PEM section not found for: ' + label);
 
-Point.prototype.toJ = function toJ() {
-  if (this.inf)
-    return this.curve.jpoint(null, null, null);
+  var base64 = lines.slice(start + 1, end).join('');
+  // Remove excessive symbols
+  base64.replace(/[^a-z0-9\+\/=]+/gi, '');
 
-  var res = this.curve.jpoint(this.x, this.y, this.curve.one);
-  return res;
+  var input = new Buffer(base64, 'base64');
+  return DERDecoder.prototype.decode.call(this, input, options);
 };
 
-function JPoint(curve, x, y, z) {
-  Base.BasePoint.call(this, curve, 'jacobian');
-  if (x === null && y === null && z === null) {
-    this.x = this.curve.one;
-    this.y = this.curve.one;
-    this.z = new BN(0);
-  } else {
-    this.x = new BN(x, 16);
-    this.y = new BN(y, 16);
-    this.z = new BN(z, 16);
-  }
-  if (!this.x.red)
-    this.x = this.x.toRed(this.curve.red);
-  if (!this.y.red)
-    this.y = this.y.toRed(this.curve.red);
-  if (!this.z.red)
-    this.z = this.z.toRed(this.curve.red);
-
-  this.zOne = this.z === this.curve.one;
-}
-inherits(JPoint, Base.BasePoint);
+},{"./der":9,"buffer":47,"inherits":95}],12:[function(require,module,exports){
+var inherits = require('inherits');
+var Buffer = require('buffer').Buffer;
 
-ShortCurve.prototype.jpoint = function jpoint(x, y, z) {
-  return new JPoint(this, x, y, z);
-};
+var asn1 = require('../../asn1');
+var base = asn1.base;
 
-JPoint.prototype.toP = function toP() {
-  if (this.isInfinity())
-    return this.curve.point(null, null);
+// Import DER constants
+var der = asn1.constants.der;
 
-  var zinv = this.z.redInvm();
-  var zinv2 = zinv.redSqr();
-  var ax = this.x.redMul(zinv2);
-  var ay = this.y.redMul(zinv2).redMul(zinv);
+function DEREncoder(entity) {
+  this.enc = 'der';
+  this.name = entity.name;
+  this.entity = entity;
 
-  return this.curve.point(ax, ay);
+  // Construct base tree
+  this.tree = new DERNode();
+  this.tree._init(entity.body);
 };
+module.exports = DEREncoder;
 
-JPoint.prototype.neg = function neg() {
-  return this.curve.jpoint(this.x, this.y.redNeg(), this.z);
+DEREncoder.prototype.encode = function encode(data, reporter) {
+  return this.tree._encode(data, reporter).join();
 };
 
-JPoint.prototype.add = function add(p) {
-  // O + P = P
-  if (this.isInfinity())
-    return p;
+// Tree methods
 
-  // P + O = P
-  if (p.isInfinity())
-    return this;
+function DERNode(parent) {
+  base.Node.call(this, 'der', parent);
+}
+inherits(DERNode, base.Node);
 
-  // 12M + 4S + 7A
-  var pz2 = p.z.redSqr();
-  var z2 = this.z.redSqr();
-  var u1 = this.x.redMul(pz2);
-  var u2 = p.x.redMul(z2);
-  var s1 = this.y.redMul(pz2.redMul(p.z));
-  var s2 = p.y.redMul(z2.redMul(this.z));
+DERNode.prototype._encodeComposite = function encodeComposite(tag,
+                                                              primitive,
+                                                              cls,
+                                                              content) {
+  var encodedTag = encodeTag(tag, primitive, cls, this.reporter);
 
-  var h = u1.redSub(u2);
-  var r = s1.redSub(s2);
-  if (h.cmpn(0) === 0) {
-    if (r.cmpn(0) !== 0)
-      return this.curve.jpoint(null, null, null);
-    else
-      return this.dbl();
+  // Short form
+  if (content.length < 0x80) {
+    var header = new Buffer(2);
+    header[0] = encodedTag;
+    header[1] = content.length;
+    return this._createEncoderBuffer([ header, content ]);
   }
 
-  var h2 = h.redSqr();
-  var h3 = h2.redMul(h);
-  var v = u1.redMul(h2);
+  // Long form
+  // Count octets required to store length
+  var lenOctets = 1;
+  for (var i = content.length; i >= 0x100; i >>= 8)
+    lenOctets++;
 
-  var nx = r.redSqr().redIAdd(h3).redISub(v).redISub(v);
-  var ny = r.redMul(v.redISub(nx)).redISub(s1.redMul(h3));
-  var nz = this.z.redMul(p.z).redMul(h);
+  var header = new Buffer(1 + 1 + lenOctets);
+  header[0] = encodedTag;
+  header[1] = 0x80 | lenOctets;
 
-  return this.curve.jpoint(nx, ny, nz);
+  for (var i = 1 + lenOctets, j = content.length; j > 0; i--, j >>= 8)
+    header[i] = j & 0xff;
+
+  return this._createEncoderBuffer([ header, content ]);
 };
 
-JPoint.prototype.mixedAdd = function mixedAdd(p) {
-  // O + P = P
-  if (this.isInfinity())
-    return p.toJ();
+DERNode.prototype._encodeStr = function encodeStr(str, tag) {
+  if (tag === 'bitstr') {
+    return this._createEncoderBuffer([ str.unused | 0, str.data ]);
+  } else if (tag === 'bmpstr') {
+    var buf = new Buffer(str.length * 2);
+    for (var i = 0; i < str.length; i++) {
+      buf.writeUInt16BE(str.charCodeAt(i), i * 2);
+    }
+    return this._createEncoderBuffer(buf);
+  } else if (tag === 'numstr') {
+    if (!this._isNumstr(str)) {
+      return this.reporter.error('Encoding of string type: numstr supports ' +
+                                 'only digits and space');
+    }
+    return this._createEncoderBuffer(str);
+  } else if (tag === 'printstr') {
+    if (!this._isPrintstr(str)) {
+      return this.reporter.error('Encoding of string type: printstr supports ' +
+                                 'only latin upper and lower case letters, ' +
+                                 'digits, space, apostrophe, left and rigth ' +
+                                 'parenthesis, plus sign, comma, hyphen, ' +
+                                 'dot, slash, colon, equal sign, ' +
+                                 'question mark');
+    }
+    return this._createEncoderBuffer(str);
+  } else if (/str$/.test(tag)) {
+    return this._createEncoderBuffer(str);
+  } else if (tag === 'objDesc') {
+    return this._createEncoderBuffer(str);
+  } else {
+    return this.reporter.error('Encoding of string type: ' + tag +
+                               ' unsupported');
+  }
+};
 
-  // P + O = P
-  if (p.isInfinity())
-    return this;
+DERNode.prototype._encodeObjid = function encodeObjid(id, values, relative) {
+  if (typeof id === 'string') {
+    if (!values)
+      return this.reporter.error('string objid given, but no values map found');
+    if (!values.hasOwnProperty(id))
+      return this.reporter.error('objid not found in values map');
+    id = values[id].split(/[\s\.]+/g);
+    for (var i = 0; i < id.length; i++)
+      id[i] |= 0;
+  } else if (Array.isArray(id)) {
+    id = id.slice();
+    for (var i = 0; i < id.length; i++)
+      id[i] |= 0;
+  }
 
-  // 8M + 3S + 7A
-  var z2 = this.z.redSqr();
-  var u1 = this.x;
-  var u2 = p.x.redMul(z2);
-  var s1 = this.y;
-  var s2 = p.y.redMul(z2).redMul(this.z);
+  if (!Array.isArray(id)) {
+    return this.reporter.error('objid() should be either array or string, ' +
+                               'got: ' + JSON.stringify(id));
+  }
 
-  var h = u1.redSub(u2);
-  var r = s1.redSub(s2);
-  if (h.cmpn(0) === 0) {
-    if (r.cmpn(0) !== 0)
-      return this.curve.jpoint(null, null, null);
-    else
-      return this.dbl();
+  if (!relative) {
+    if (id[1] >= 40)
+      return this.reporter.error('Second objid identifier OOB');
+    id.splice(0, 2, id[0] * 40 + id[1]);
   }
 
-  var h2 = h.redSqr();
-  var h3 = h2.redMul(h);
-  var v = u1.redMul(h2);
+  // Count number of octets
+  var size = 0;
+  for (var i = 0; i < id.length; i++) {
+    var ident = id[i];
+    for (size++; ident >= 0x80; ident >>= 7)
+      size++;
+  }
 
-  var nx = r.redSqr().redIAdd(h3).redISub(v).redISub(v);
-  var ny = r.redMul(v.redISub(nx)).redISub(s1.redMul(h3));
-  var nz = this.z.redMul(h);
+  var objid = new Buffer(size);
+  var offset = objid.length - 1;
+  for (var i = id.length - 1; i >= 0; i--) {
+    var ident = id[i];
+    objid[offset--] = ident & 0x7f;
+    while ((ident >>= 7) > 0)
+      objid[offset--] = 0x80 | (ident & 0x7f);
+  }
 
-  return this.curve.jpoint(nx, ny, nz);
+  return this._createEncoderBuffer(objid);
 };
 
-JPoint.prototype.dblp = function dblp(pow) {
-  if (pow === 0)
-    return this;
-  if (this.isInfinity())
-    return this;
-  if (!pow)
-    return this.dbl();
+function two(num) {
+  if (num < 10)
+    return '0' + num;
+  else
+    return num;
+}
 
-  if (this.curve.zeroA || this.curve.threeA) {
-    var r = this;
-    for (var i = 0; i < pow; i++)
-      r = r.dbl();
-    return r;
+DERNode.prototype._encodeTime = function encodeTime(time, tag) {
+  var str;
+  var date = new Date(time);
+
+  if (tag === 'gentime') {
+    str = [
+      two(date.getFullYear()),
+      two(date.getUTCMonth() + 1),
+      two(date.getUTCDate()),
+      two(date.getUTCHours()),
+      two(date.getUTCMinutes()),
+      two(date.getUTCSeconds()),
+      'Z'
+    ].join('');
+  } else if (tag === 'utctime') {
+    str = [
+      two(date.getFullYear() % 100),
+      two(date.getUTCMonth() + 1),
+      two(date.getUTCDate()),
+      two(date.getUTCHours()),
+      two(date.getUTCMinutes()),
+      two(date.getUTCSeconds()),
+      'Z'
+    ].join('');
+  } else {
+    this.reporter.error('Encoding ' + tag + ' time is not supported yet');
   }
 
-  // 1M + 2S + 1A + N * (4S + 5M + 8A)
-  // N = 1 => 6M + 6S + 9A
-  var a = this.curve.a;
-  var tinv = this.curve.tinv;
+  return this._encodeStr(str, 'octstr');
+};
 
-  var jx = this.x;
-  var jy = this.y;
-  var jz = this.z;
-  var jz4 = jz.redSqr().redSqr();
+DERNode.prototype._encodeNull = function encodeNull() {
+  return this._createEncoderBuffer('');
+};
 
-  // Reuse results
-  var jyd = jy.redAdd(jy);
-  for (var i = 0; i < pow; i++) {
-    var jx2 = jx.redSqr();
-    var jyd2 = jyd.redSqr();
-    var jyd4 = jyd2.redSqr();
-    var c = jx2.redAdd(jx2).redIAdd(jx2).redIAdd(a.redMul(jz4));
+DERNode.prototype._encodeInt = function encodeInt(num, values) {
+  if (typeof num === 'string') {
+    if (!values)
+      return this.reporter.error('String int or enum given, but no values map');
+    if (!values.hasOwnProperty(num)) {
+      return this.reporter.error('Values map doesn\'t contain: ' +
+                                 JSON.stringify(num));
+    }
+    num = values[num];
+  }
 
-    var t1 = jx.redMul(jyd2);
-    var nx = c.redSqr().redISub(t1.redAdd(t1));
-    var t2 = t1.redISub(nx);
-    var dny = c.redMul(t2);
-    dny = dny.redIAdd(dny).redISub(jyd4);
-    var nz = jyd.redMul(jz);
-    if (i + 1 < pow)
-      jz4 = jz4.redMul(jyd4);
+  // Bignum, assume big endian
+  if (typeof num !== 'number' && !Buffer.isBuffer(num)) {
+    var numArray = num.toArray();
+    if (!num.sign && numArray[0] & 0x80) {
+      numArray.unshift(0);
+    }
+    num = new Buffer(numArray);
+  }
 
-    jx = nx;
-    jz = nz;
-    jyd = dny;
+  if (Buffer.isBuffer(num)) {
+    var size = num.length;
+    if (num.length === 0)
+      size++;
+
+    var out = new Buffer(size);
+    num.copy(out);
+    if (num.length === 0)
+      out[0] = 0
+    return this._createEncoderBuffer(out);
   }
 
-  return this.curve.jpoint(jx, jyd.redMul(tinv), jz);
+  if (num < 0x80)
+    return this._createEncoderBuffer(num);
+
+  if (num < 0x100)
+    return this._createEncoderBuffer([0, num]);
+
+  var size = 1;
+  for (var i = num; i >= 0x100; i >>= 8)
+    size++;
+
+  var out = new Array(size);
+  for (var i = out.length - 1; i >= 0; i--) {
+    out[i] = num & 0xff;
+    num >>= 8;
+  }
+  if(out[0] & 0x80) {
+    out.unshift(0);
+  }
+
+  return this._createEncoderBuffer(new Buffer(out));
 };
 
-JPoint.prototype.dbl = function dbl() {
-  if (this.isInfinity())
-    return this;
+DERNode.prototype._encodeBool = function encodeBool(value) {
+  return this._createEncoderBuffer(value ? 0xff : 0);
+};
 
-  if (this.curve.zeroA)
-    return this._zeroDbl();
-  else if (this.curve.threeA)
-    return this._threeDbl();
-  else
-    return this._dbl();
+DERNode.prototype._use = function use(entity, obj) {
+  if (typeof entity === 'function')
+    entity = entity(obj);
+  return entity._getEncoder('der').tree;
 };
 
-JPoint.prototype._zeroDbl = function _zeroDbl() {
-  var nx;
-  var ny;
-  var nz;
-  // Z = 1
-  if (this.zOne) {
-    // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html
-    //     #doubling-mdbl-2007-bl
-    // 1M + 5S + 14A
+DERNode.prototype._skipDefault = function skipDefault(dataBuffer, reporter, parent) {
+  var state = this._baseState;
+  var i;
+  if (state['default'] === null)
+    return false;
 
-    // XX = X1^2
-    var xx = this.x.redSqr();
-    // YY = Y1^2
-    var yy = this.y.redSqr();
-    // YYYY = YY^2
-    var yyyy = yy.redSqr();
-    // S = 2 * ((X1 + YY)^2 - XX - YYYY)
-    var s = this.x.redAdd(yy).redSqr().redISub(xx).redISub(yyyy);
-    s = s.redIAdd(s);
-    // M = 3 * XX + a; a = 0
-    var m = xx.redAdd(xx).redIAdd(xx);
-    // T = M ^ 2 - 2*S
-    var t = m.redSqr().redISub(s).redISub(s);
+  var data = dataBuffer.join();
+  if (state.defaultBuffer === undefined)
+    state.defaultBuffer = this._encodeValue(state['default'], reporter, parent).join();
 
-    // 8 * YYYY
-    var yyyy8 = yyyy.redIAdd(yyyy);
-    yyyy8 = yyyy8.redIAdd(yyyy8);
-    yyyy8 = yyyy8.redIAdd(yyyy8);
+  if (data.length !== state.defaultBuffer.length)
+    return false;
 
-    // X3 = T
-    nx = t;
-    // Y3 = M * (S - T) - 8 * YYYY
-    ny = m.redMul(s.redISub(t)).redISub(yyyy8);
-    // Z3 = 2*Y1
-    nz = this.y.redAdd(this.y);
-  } else {
-    // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html
-    //     #doubling-dbl-2009-l
-    // 2M + 5S + 13A
+  for (i=0; i < data.length; i++)
+    if (data[i] !== state.defaultBuffer[i])
+      return false;
 
-    // A = X1^2
-    var a = this.x.redSqr();
-    // B = Y1^2
-    var b = this.y.redSqr();
-    // C = B^2
-    var c = b.redSqr();
-    // D = 2 * ((X1 + B)^2 - A - C)
-    var d = this.x.redAdd(b).redSqr().redISub(a).redISub(c);
-    d = d.redIAdd(d);
-    // E = 3 * A
-    var e = a.redAdd(a).redIAdd(a);
-    // F = E^2
-    var f = e.redSqr();
+  return true;
+};
 
-    // 8 * C
-    var c8 = c.redIAdd(c);
-    c8 = c8.redIAdd(c8);
-    c8 = c8.redIAdd(c8);
+// Utility methods
 
-    // X3 = F - 2 * D
-    nx = f.redISub(d).redISub(d);
-    // Y3 = E * (D - X3) - 8 * C
-    ny = e.redMul(d.redISub(nx)).redISub(c8);
-    // Z3 = 2 * Y1 * Z1
-    nz = this.y.redMul(this.z);
-    nz = nz.redIAdd(nz);
-  }
+function encodeTag(tag, primitive, cls, reporter) {
+  var res;
 
-  return this.curve.jpoint(nx, ny, nz);
-};
+  if (tag === 'seqof')
+    tag = 'seq';
+  else if (tag === 'setof')
+    tag = 'set';
 
-JPoint.prototype._threeDbl = function _threeDbl() {
-  var nx;
-  var ny;
-  var nz;
-  // Z = 1
-  if (this.zOne) {
-    // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-3.html
-    //     #doubling-mdbl-2007-bl
-    // 1M + 5S + 15A
+  if (der.tagByName.hasOwnProperty(tag))
+    res = der.tagByName[tag];
+  else if (typeof tag === 'number' && (tag | 0) === tag)
+    res = tag;
+  else
+    return reporter.error('Unknown tag: ' + tag);
 
-    // XX = X1^2
-    var xx = this.x.redSqr();
-    // YY = Y1^2
-    var yy = this.y.redSqr();
-    // YYYY = YY^2
-    var yyyy = yy.redSqr();
-    // S = 2 * ((X1 + YY)^2 - XX - YYYY)
-    var s = this.x.redAdd(yy).redSqr().redISub(xx).redISub(yyyy);
-    s = s.redIAdd(s);
-    // M = 3 * XX + a
-    var m = xx.redAdd(xx).redIAdd(xx).redIAdd(this.curve.a);
-    // T = M^2 - 2 * S
-    var t = m.redSqr().redISub(s).redISub(s);
-    // X3 = T
-    nx = t;
-    // Y3 = M * (S - T) - 8 * YYYY
-    var yyyy8 = yyyy.redIAdd(yyyy);
-    yyyy8 = yyyy8.redIAdd(yyyy8);
-    yyyy8 = yyyy8.redIAdd(yyyy8);
-    ny = m.redMul(s.redISub(t)).redISub(yyyy8);
-    // Z3 = 2 * Y1
-    nz = this.y.redAdd(this.y);
-  } else {
-    // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-3.html#doubling-dbl-2001-b
-    // 3M + 5S
+  if (res >= 0x1f)
+    return reporter.error('Multi-octet tag encoding unsupported');
 
-    // delta = Z1^2
-    var delta = this.z.redSqr();
-    // gamma = Y1^2
-    var gamma = this.y.redSqr();
-    // beta = X1 * gamma
-    var beta = this.x.redMul(gamma);
-    // alpha = 3 * (X1 - delta) * (X1 + delta)
-    var alpha = this.x.redSub(delta).redMul(this.x.redAdd(delta));
-    alpha = alpha.redAdd(alpha).redIAdd(alpha);
-    // X3 = alpha^2 - 8 * beta
-    var beta4 = beta.redIAdd(beta);
-    beta4 = beta4.redIAdd(beta4);
-    var beta8 = beta4.redAdd(beta4);
-    nx = alpha.redSqr().redISub(beta8);
-    // Z3 = (Y1 + Z1)^2 - gamma - delta
-    nz = this.y.redAdd(this.z).redSqr().redISub(gamma).redISub(delta);
-    // Y3 = alpha * (4 * beta - X3) - 8 * gamma^2
-    var ggamma8 = gamma.redSqr();
-    ggamma8 = ggamma8.redIAdd(ggamma8);
-    ggamma8 = ggamma8.redIAdd(ggamma8);
-    ggamma8 = ggamma8.redIAdd(ggamma8);
-    ny = alpha.redMul(beta4.redISub(nx)).redISub(ggamma8);
-  }
+  if (!primitive)
+    res |= 0x20;
 
-  return this.curve.jpoint(nx, ny, nz);
-};
+  res |= (der.tagClassByName[cls || 'universal'] << 6);
 
-JPoint.prototype._dbl = function _dbl() {
-  var a = this.curve.a;
+  return res;
+}
 
-  // 4M + 6S + 10A
-  var jx = this.x;
-  var jy = this.y;
-  var jz = this.z;
-  var jz4 = jz.redSqr().redSqr();
+},{"../../asn1":1,"buffer":47,"inherits":95}],13:[function(require,module,exports){
+var encoders = exports;
 
-  var jx2 = jx.redSqr();
-  var jy2 = jy.redSqr();
+encoders.der = require('./der');
+encoders.pem = require('./pem');
 
-  var c = jx2.redAdd(jx2).redIAdd(jx2).redIAdd(a.redMul(jz4));
+},{"./der":12,"./pem":14}],14:[function(require,module,exports){
+var inherits = require('inherits');
 
-  var jxd4 = jx.redAdd(jx);
-  jxd4 = jxd4.redIAdd(jxd4);
-  var t1 = jxd4.redMul(jy2);
-  var nx = c.redSqr().redISub(t1.redAdd(t1));
-  var t2 = t1.redISub(nx);
+var DEREncoder = require('./der');
 
-  var jyd8 = jy2.redSqr();
-  jyd8 = jyd8.redIAdd(jyd8);
-  jyd8 = jyd8.redIAdd(jyd8);
-  jyd8 = jyd8.redIAdd(jyd8);
-  var ny = c.redMul(t2).redISub(jyd8);
-  var nz = jy.redAdd(jy).redMul(jz);
+function PEMEncoder(entity) {
+  DEREncoder.call(this, entity);
+  this.enc = 'pem';
+};
+inherits(PEMEncoder, DEREncoder);
+module.exports = PEMEncoder;
 
-  return this.curve.jpoint(nx, ny, nz);
+PEMEncoder.prototype.encode = function encode(data, options) {
+  var buf = DEREncoder.prototype.encode.call(this, data);
+
+  var p = buf.toString('base64');
+  var out = [ '-----BEGIN ' + options.label + '-----' ];
+  for (var i = 0; i < p.length; i += 64)
+    out.push(p.slice(i, i + 64));
+  out.push('-----END ' + options.label + '-----');
+  return out.join('\n');
 };
 
-JPoint.prototype.trpl = function trpl() {
-  if (!this.curve.zeroA)
-    return this.dbl().add(this);
+},{"./der":12,"inherits":95}],15:[function(require,module,exports){
+(function (global){
+'use strict';
 
-  // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html#tripling-tpl-2007-bl
-  // 5M + 10S + ...
+// compare and isBuffer taken from https://github.com/feross/buffer/blob/680e9e5e488f22aac27599a57dc844a6315928dd/index.js
+// original notice:
 
-  // XX = X1^2
-  var xx = this.x.redSqr();
-  // YY = Y1^2
-  var yy = this.y.redSqr();
-  // ZZ = Z1^2
-  var zz = this.z.redSqr();
-  // YYYY = YY^2
-  var yyyy = yy.redSqr();
-  // M = 3 * XX + a * ZZ2; a = 0
-  var m = xx.redAdd(xx).redIAdd(xx);
-  // MM = M^2
-  var mm = m.redSqr();
-  // E = 6 * ((X1 + YY)^2 - XX - YYYY) - MM
-  var e = this.x.redAdd(yy).redSqr().redISub(xx).redISub(yyyy);
-  e = e.redIAdd(e);
-  e = e.redAdd(e).redIAdd(e);
-  e = e.redISub(mm);
-  // EE = E^2
-  var ee = e.redSqr();
-  // T = 16*YYYY
-  var t = yyyy.redIAdd(yyyy);
-  t = t.redIAdd(t);
-  t = t.redIAdd(t);
-  t = t.redIAdd(t);
-  // U = (M + E)^2 - MM - EE - T
-  var u = m.redIAdd(e).redSqr().redISub(mm).redISub(ee).redISub(t);
-  // X3 = 4 * (X1 * EE - 4 * YY * U)
-  var yyu4 = yy.redMul(u);
-  yyu4 = yyu4.redIAdd(yyu4);
-  yyu4 = yyu4.redIAdd(yyu4);
-  var nx = this.x.redMul(ee).redISub(yyu4);
-  nx = nx.redIAdd(nx);
-  nx = nx.redIAdd(nx);
-  // Y3 = 8 * Y1 * (U * (T - U) - E * EE)
-  var ny = this.y.redMul(u.redMul(t.redISub(u)).redISub(e.redMul(ee)));
-  ny = ny.redIAdd(ny);
-  ny = ny.redIAdd(ny);
-  ny = ny.redIAdd(ny);
-  // Z3 = (Z1 + E)^2 - ZZ - EE
-  var nz = this.z.redAdd(e).redSqr().redISub(zz).redISub(ee);
+/*!
+ * The buffer module from node.js, for the browser.
+ *
+ * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
+ * @license  MIT
+ */
+function compare(a, b) {
+  if (a === b) {
+    return 0;
+  }
 
-  return this.curve.jpoint(nx, ny, nz);
-};
+  var x = a.length;
+  var y = b.length;
 
-JPoint.prototype.mul = function mul(k, kbase) {
-  k = new BN(k, kbase);
+  for (var i = 0, len = Math.min(x, y); i < len; ++i) {
+    if (a[i] !== b[i]) {
+      x = a[i];
+      y = b[i];
+      break;
+    }
+  }
 
-  return this.curve._wnafMul(this, k);
-};
+  if (x < y) {
+    return -1;
+  }
+  if (y < x) {
+    return 1;
+  }
+  return 0;
+}
+function isBuffer(b) {
+  if (global.Buffer && typeof global.Buffer.isBuffer === 'function') {
+    return global.Buffer.isBuffer(b);
+  }
+  return !!(b != null && b._isBuffer);
+}
 
-JPoint.prototype.eq = function eq(p) {
-  if (p.type === 'affine')
-    return this.eq(p.toJ());
+// based on node assert, original notice:
 
-  if (this === p)
-    return true;
+// http://wiki.commonjs.org/wiki/Unit_Testing/1.0
+//
+// THIS IS NOT TESTED NOR LIKELY TO WORK OUTSIDE V8!
+//
+// Originally from narwhal.js (http://narwhaljs.org)
+// Copyright (c) 2009 Thomas Robinson <280north.com>
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the 'Software'), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-  // x1 * z2^2 == x2 * z1^2
-  var z2 = this.z.redSqr();
-  var pz2 = p.z.redSqr();
-  if (this.x.redMul(pz2).redISub(p.x.redMul(z2)).cmpn(0) !== 0)
+var util = require('util/');
+var hasOwn = Object.prototype.hasOwnProperty;
+var pSlice = Array.prototype.slice;
+var functionsHaveNames = (function () {
+  return function foo() {}.name === 'foo';
+}());
+function pToString (obj) {
+  return Object.prototype.toString.call(obj);
+}
+function isView(arrbuf) {
+  if (isBuffer(arrbuf)) {
+    return false;
+  }
+  if (typeof global.ArrayBuffer !== 'function') {
+    return false;
+  }
+  if (typeof ArrayBuffer.isView === 'function') {
+    return ArrayBuffer.isView(arrbuf);
+  }
+  if (!arrbuf) {
     return false;
+  }
+  if (arrbuf instanceof DataView) {
+    return true;
+  }
+  if (arrbuf.buffer && arrbuf.buffer instanceof ArrayBuffer) {
+    return true;
+  }
+  return false;
+}
+// 1. The assert module provides functions that throw
+// AssertionError's when particular conditions are not met. The
+// assert module must conform to the following interface.
 
-  // y1 * z2^3 == y2 * z1^3
-  var z3 = z2.redMul(this.z);
-  var pz3 = pz2.redMul(p.z);
-  return this.y.redMul(pz3).redISub(p.y.redMul(z3)).cmpn(0) === 0;
-};
+var assert = module.exports = ok;
 
-JPoint.prototype.eqXToP = function eqXToP(x) {
-  var zs = this.z.redSqr();
-  var rx = x.toRed(this.curve.red).redMul(zs);
-  if (this.x.cmp(rx) === 0)
-    return true;
+// 2. The AssertionError is defined in assert.
+// new assert.AssertionError({ message: message,
+//                             actual: actual,
+//                             expected: expected })
 
-  var xc = x.clone();
-  var t = this.curve.redN.redMul(zs);
-  for (;;) {
-    xc.iadd(this.curve.n);
-    if (xc.cmp(this.curve.p) >= 0)
-      return false;
+var regex = /\s*function\s+([^\(\s]*)\s*/;
+// based on https://github.com/ljharb/function.prototype.name/blob/adeeeec8bfcc6068b187d7d9fb3d5bb1d3a30899/implementation.js
+function getName(func) {
+  if (!util.isFunction(func)) {
+    return;
+  }
+  if (functionsHaveNames) {
+    return func.name;
+  }
+  var str = func.toString();
+  var match = str.match(regex);
+  return match && match[1];
+}
+assert.AssertionError = function AssertionError(options) {
+  this.name = 'AssertionError';
+  this.actual = options.actual;
+  this.expected = options.expected;
+  this.operator = options.operator;
+  if (options.message) {
+    this.message = options.message;
+    this.generatedMessage = false;
+  } else {
+    this.message = getMessage(this);
+    this.generatedMessage = true;
+  }
+  var stackStartFunction = options.stackStartFunction || fail;
+  if (Error.captureStackTrace) {
+    Error.captureStackTrace(this, stackStartFunction);
+  } else {
+    // non v8 browsers so we can have a stacktrace
+    var err = new Error();
+    if (err.stack) {
+      var out = err.stack;
 
-    rx.redIAdd(t);
-    if (this.x.cmp(rx) === 0)
-      return true;
+      // try to strip useless frames
+      var fn_name = getName(stackStartFunction);
+      var idx = out.indexOf('\n' + fn_name);
+      if (idx >= 0) {
+        // once we have located the function frame
+        // we need to strip out everything before it (and its line)
+        var next_line = out.indexOf('\n', idx + 1);
+        out = out.substring(next_line + 1);
+      }
+
+      this.stack = out;
+    }
   }
-  return false;
 };
 
-JPoint.prototype.inspect = function inspect() {
-  if (this.isInfinity())
-    return '<EC JPoint Infinity>';
-  return '<EC JPoint x: ' + this.x.toString(16, 2) +
-      ' y: ' + this.y.toString(16, 2) +
-      ' z: ' + this.z.toString(16, 2) + '>';
-};
+// assert.AssertionError instanceof Error
+util.inherits(assert.AssertionError, Error);
 
-JPoint.prototype.isInfinity = function isInfinity() {
-  // XXX This code assumes that zero is always zero in red
-  return this.z.cmpn(0) === 0;
-};
+function truncate(s, n) {
+  if (typeof s === 'string') {
+    return s.length < n ? s : s.slice(0, n);
+  } else {
+    return s;
+  }
+}
+function inspect(something) {
+  if (functionsHaveNames || !util.isFunction(something)) {
+    return util.inspect(something);
+  }
+  var rawname = getName(something);
+  var name = rawname ? ': ' + rawname : '';
+  return '[Function' +  name + ']';
+}
+function getMessage(self) {
+  return truncate(inspect(self.actual), 128) + ' ' +
+         self.operator + ' ' +
+         truncate(inspect(self.expected), 128);
+}
 
-},{"../../elliptic":97,"../curve":100,"bn.js":81,"inherits":121}],103:[function(require,module,exports){
-'use strict';
+// At present only the three keys mentioned above are used and
+// understood by the spec. Implementations or sub modules can pass
+// other keys to the AssertionError's constructor - they will be
+// ignored.
 
-var curves = exports;
+// 3. All of the following functions must throw an AssertionError
+// when a corresponding condition is not met, with a message that
+// may be undefined if not provided.  All assertion methods provide
+// both the actual and expected values to the assertion error for
+// display purposes.
 
-var hash = require('hash.js');
-var elliptic = require('../elliptic');
+function fail(actual, expected, message, operator, stackStartFunction) {
+  throw new assert.AssertionError({
+    message: message,
+    actual: actual,
+    expected: expected,
+    operator: operator,
+    stackStartFunction: stackStartFunction
+  });
+}
 
-var assert = elliptic.utils.assert;
+// EXTENSION! allows for well behaved errors defined elsewhere.
+assert.fail = fail;
 
-function PresetCurve(options) {
-  if (options.type === 'short')
-    this.curve = new elliptic.curve.short(options);
-  else if (options.type === 'edwards')
-    this.curve = new elliptic.curve.edwards(options);
-  else
-    this.curve = new elliptic.curve.mont(options);
-  this.g = this.curve.g;
-  this.n = this.curve.n;
-  this.hash = options.hash;
+// 4. Pure assertion tests whether a value is truthy, as determined
+// by !!guard.
+// assert.ok(guard, message_opt);
+// This statement is equivalent to assert.equal(true, !!guard,
+// message_opt);. To test strictly for the value true, use
+// assert.strictEqual(true, guard, message_opt);.
 
-  assert(this.g.validate(), 'Invalid curve');
-  assert(this.g.mul(this.n).isInfinity(), 'Invalid curve, G*N != O');
+function ok(value, message) {
+  if (!value) fail(value, true, message, '==', assert.ok);
 }
-curves.PresetCurve = PresetCurve;
+assert.ok = ok;
 
-function defineCurve(name, options) {
-  Object.defineProperty(curves, name, {
-    configurable: true,
-    enumerable: true,
-    get: function() {
-      var curve = new PresetCurve(options);
-      Object.defineProperty(curves, name, {
-        configurable: true,
-        enumerable: true,
-        value: curve
-      });
-      return curve;
-    }
-  });
-}
+// 5. The equality assertion tests shallow, coercive equality with
+// ==.
+// assert.equal(actual, expected, message_opt);
 
-defineCurve('p192', {
-  type: 'short',
-  prime: 'p192',
-  p: 'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff',
-  a: 'ffffffff ffffffff ffffffff fffffffe ffffffff fffffffc',
-  b: '64210519 e59c80e7 0fa7e9ab 72243049 feb8deec c146b9b1',
-  n: 'ffffffff ffffffff ffffffff 99def836 146bc9b1 b4d22831',
-  hash: hash.sha256,
-  gRed: false,
-  g: [
-    '188da80e b03090f6 7cbf20eb 43a18800 f4ff0afd 82ff1012',
-    '07192b95 ffc8da78 631011ed 6b24cdd5 73f977a1 1e794811'
-  ]
-});
+assert.equal = function equal(actual, expected, message) {
+  if (actual != expected) fail(actual, expected, message, '==', assert.equal);
+};
 
-defineCurve('p224', {
-  type: 'short',
-  prime: 'p224',
-  p: 'ffffffff ffffffff ffffffff ffffffff 00000000 00000000 00000001',
-  a: 'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff fffffffe',
-  b: 'b4050a85 0c04b3ab f5413256 5044b0b7 d7bfd8ba 270b3943 2355ffb4',
-  n: 'ffffffff ffffffff ffffffff ffff16a2 e0b8f03e 13dd2945 5c5c2a3d',
-  hash: hash.sha256,
-  gRed: false,
-  g: [
-    'b70e0cbd 6bb4bf7f 321390b9 4a03c1d3 56c21122 343280d6 115c1d21',
-    'bd376388 b5f723fb 4c22dfe6 cd4375a0 5a074764 44d58199 85007e34'
-  ]
-});
+// 6. The non-equality assertion tests for whether two objects are not equal
+// with != assert.notEqual(actual, expected, message_opt);
 
-defineCurve('p256', {
-  type: 'short',
-  prime: null,
-  p: 'ffffffff 00000001 00000000 00000000 00000000 ffffffff ffffffff ffffffff',
-  a: 'ffffffff 00000001 00000000 00000000 00000000 ffffffff ffffffff fffffffc',
-  b: '5ac635d8 aa3a93e7 b3ebbd55 769886bc 651d06b0 cc53b0f6 3bce3c3e 27d2604b',
-  n: 'ffffffff 00000000 ffffffff ffffffff bce6faad a7179e84 f3b9cac2 fc632551',
-  hash: hash.sha256,
-  gRed: false,
-  g: [
-    '6b17d1f2 e12c4247 f8bce6e5 63a440f2 77037d81 2deb33a0 f4a13945 d898c296',
-    '4fe342e2 fe1a7f9b 8ee7eb4a 7c0f9e16 2bce3357 6b315ece cbb64068 37bf51f5'
-  ]
-});
+assert.notEqual = function notEqual(actual, expected, message) {
+  if (actual == expected) {
+    fail(actual, expected, message, '!=', assert.notEqual);
+  }
+};
 
-defineCurve('p384', {
-  type: 'short',
-  prime: null,
-  p: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ' +
-     'fffffffe ffffffff 00000000 00000000 ffffffff',
-  a: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ' +
-     'fffffffe ffffffff 00000000 00000000 fffffffc',
-  b: 'b3312fa7 e23ee7e4 988e056b e3f82d19 181d9c6e fe814112 0314088f ' +
-     '5013875a c656398d 8a2ed19d 2a85c8ed d3ec2aef',
-  n: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff c7634d81 ' +
-     'f4372ddf 581a0db2 48b0a77a ecec196a ccc52973',
-  hash: hash.sha384,
-  gRed: false,
-  g: [
-    'aa87ca22 be8b0537 8eb1c71e f320ad74 6e1d3b62 8ba79b98 59f741e0 82542a38 ' +
-    '5502f25d bf55296c 3a545e38 72760ab7',
-    '3617de4a 96262c6f 5d9e98bf 9292dc29 f8f41dbd 289a147c e9da3113 b5f0b8c0 ' +
-    '0a60b1ce 1d7e819d 7a431d7c 90ea0e5f'
-  ]
-});
+// 7. The equivalence assertion tests a deep equality relation.
+// assert.deepEqual(actual, expected, message_opt);
 
-defineCurve('p521', {
-  type: 'short',
-  prime: null,
-  p: '000001ff ffffffff ffffffff ffffffff ffffffff ffffffff ' +
-     'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ' +
-     'ffffffff ffffffff ffffffff ffffffff ffffffff',
-  a: '000001ff ffffffff ffffffff ffffffff ffffffff ffffffff ' +
-     'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ' +
-     'ffffffff ffffffff ffffffff ffffffff fffffffc',
-  b: '00000051 953eb961 8e1c9a1f 929a21a0 b68540ee a2da725b ' +
-     '99b315f3 b8b48991 8ef109e1 56193951 ec7e937b 1652c0bd ' +
-     '3bb1bf07 3573df88 3d2c34f1 ef451fd4 6b503f00',
-  n: '000001ff ffffffff ffffffff ffffffff ffffffff ffffffff ' +
-     'ffffffff ffffffff fffffffa 51868783 bf2f966b 7fcc0148 ' +
-     'f709a5d0 3bb5c9b8 899c47ae bb6fb71e 91386409',
-  hash: hash.sha512,
-  gRed: false,
-  g: [
-    '000000c6 858e06b7 0404e9cd 9e3ecb66 2395b442 9c648139 ' +
-    '053fb521 f828af60 6b4d3dba a14b5e77 efe75928 fe1dc127 ' +
-    'a2ffa8de 3348b3c1 856a429b f97e7e31 c2e5bd66',
-    '00000118 39296a78 9a3bc004 5c8a5fb4 2c7d1bd9 98f54449 ' +
-    '579b4468 17afbd17 273e662c 97ee7299 5ef42640 c550b901 ' +
-    '3fad0761 353c7086 a272c240 88be9476 9fd16650'
-  ]
-});
+assert.deepEqual = function deepEqual(actual, expected, message) {
+  if (!_deepEqual(actual, expected, false)) {
+    fail(actual, expected, message, 'deepEqual', assert.deepEqual);
+  }
+};
 
-defineCurve('curve25519', {
-  type: 'mont',
-  prime: 'p25519',
-  p: '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed',
-  a: '76d06',
-  b: '1',
-  n: '1000000000000000 0000000000000000 14def9dea2f79cd6 5812631a5cf5d3ed',
-  hash: hash.sha256,
-  gRed: false,
-  g: [
-    '9'
-  ]
-});
+assert.deepStrictEqual = function deepStrictEqual(actual, expected, message) {
+  if (!_deepEqual(actual, expected, true)) {
+    fail(actual, expected, message, 'deepStrictEqual', assert.deepStrictEqual);
+  }
+};
 
-defineCurve('ed25519', {
-  type: 'edwards',
-  prime: 'p25519',
-  p: '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed',
-  a: '-1',
-  c: '1',
-  // -121665 * (121666^(-1)) (mod P)
-  d: '52036cee2b6ffe73 8cc740797779e898 00700a4d4141d8ab 75eb4dca135978a3',
-  n: '1000000000000000 0000000000000000 14def9dea2f79cd6 5812631a5cf5d3ed',
-  hash: hash.sha256,
-  gRed: false,
-  g: [
-    '216936d3cd6e53fec0a4e231fdd6dc5c692cc7609525a7b2c9562d608f25d51a',
+function _deepEqual(actual, expected, strict, memos) {
+  // 7.1. All identical values are equivalent, as determined by ===.
+  if (actual === expected) {
+    return true;
+  } else if (isBuffer(actual) && isBuffer(expected)) {
+    return compare(actual, expected) === 0;
 
-    // 4/5
-    '6666666666666666666666666666666666666666666666666666666666666658'
-  ]
-});
+  // 7.2. If the expected value is a Date object, the actual value is
+  // equivalent if it is also a Date object that refers to the same time.
+  } else if (util.isDate(actual) && util.isDate(expected)) {
+    return actual.getTime() === expected.getTime();
 
-var pre;
-try {
-  pre = require('./precomputed/secp256k1');
-} catch (e) {
-  pre = undefined;
-}
+  // 7.3 If the expected value is a RegExp object, the actual value is
+  // equivalent if it is also a RegExp object with the same source and
+  // properties (`global`, `multiline`, `lastIndex`, `ignoreCase`).
+  } else if (util.isRegExp(actual) && util.isRegExp(expected)) {
+    return actual.source === expected.source &&
+           actual.global === expected.global &&
+           actual.multiline === expected.multiline &&
+           actual.lastIndex === expected.lastIndex &&
+           actual.ignoreCase === expected.ignoreCase;
 
-defineCurve('secp256k1', {
-  type: 'short',
-  prime: 'k256',
-  p: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe fffffc2f',
-  a: '0',
-  b: '7',
-  n: 'ffffffff ffffffff ffffffff fffffffe baaedce6 af48a03b bfd25e8c d0364141',
-  h: '1',
-  hash: hash.sha256,
+  // 7.4. Other pairs that do not both pass typeof value == 'object',
+  // equivalence is determined by ==.
+  } else if ((actual === null || typeof actual !== 'object') &&
+             (expected === null || typeof expected !== 'object')) {
+    return strict ? actual === expected : actual == expected;
 
-  // Precomputed endomorphism
-  beta: '7ae96a2b657c07106e64479eac3434e99cf0497512f58995c1396c28719501ee',
-  lambda: '5363ad4cc05c30e0a5261c028812645a122e22ea20816678df02967c1b23bd72',
-  basis: [
-    {
-      a: '3086d221a7d46bcde86c90e49284eb15',
-      b: '-e4437ed6010e88286f547fa90abfe4c3'
-    },
-    {
-      a: '114ca50f7a8e2f3f657c1108d9d44cfd8',
-      b: '3086d221a7d46bcde86c90e49284eb15'
+  // If both values are instances of typed arrays, wrap their underlying
+  // ArrayBuffers in a Buffer each to increase performance
+  // This optimization requires the arrays to have the same type as checked by
+  // Object.prototype.toString (aka pToString). Never perform binary
+  // comparisons for Float*Arrays, though, since e.g. +0 === -0 but their
+  // bit patterns are not identical.
+  } else if (isView(actual) && isView(expected) &&
+             pToString(actual) === pToString(expected) &&
+             !(actual instanceof Float32Array ||
+               actual instanceof Float64Array)) {
+    return compare(new Uint8Array(actual.buffer),
+                   new Uint8Array(expected.buffer)) === 0;
+
+  // 7.5 For all other Object pairs, including Array objects, equivalence is
+  // determined by having the same number of owned properties (as verified
+  // with Object.prototype.hasOwnProperty.call), the same set of keys
+  // (although not necessarily the same order), equivalent values for every
+  // corresponding key, and an identical 'prototype' property. Note: this
+  // accounts for both named and indexed properties on Arrays.
+  } else if (isBuffer(actual) !== isBuffer(expected)) {
+    return false;
+  } else {
+    memos = memos || {actual: [], expected: []};
+
+    var actualIndex = memos.actual.indexOf(actual);
+    if (actualIndex !== -1) {
+      if (actualIndex === memos.expected.indexOf(expected)) {
+        return true;
+      }
     }
-  ],
 
-  gRed: false,
-  g: [
-    '79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798',
-    '483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8',
-    pre
-  ]
-});
+    memos.actual.push(actual);
+    memos.expected.push(expected);
 
-},{"../elliptic":97,"./precomputed/secp256k1":110,"hash.js":114}],104:[function(require,module,exports){
-'use strict';
+    return objEquiv(actual, expected, strict, memos);
+  }
+}
 
-var BN = require('bn.js');
-var HmacDRBG = require('hmac-drbg');
-var elliptic = require('../../elliptic');
-var utils = elliptic.utils;
-var assert = utils.assert;
+function isArguments(object) {
+  return Object.prototype.toString.call(object) == '[object Arguments]';
+}
 
-var KeyPair = require('./key');
-var Signature = require('./signature');
+function objEquiv(a, b, strict, actualVisitedObjects) {
+  if (a === null || a === undefined || b === null || b === undefined)
+    return false;
+  // if one is a primitive, the other must be same
+  if (util.isPrimitive(a) || util.isPrimitive(b))
+    return a === b;
+  if (strict && Object.getPrototypeOf(a) !== Object.getPrototypeOf(b))
+    return false;
+  var aIsArgs = isArguments(a);
+  var bIsArgs = isArguments(b);
+  if ((aIsArgs && !bIsArgs) || (!aIsArgs && bIsArgs))
+    return false;
+  if (aIsArgs) {
+    a = pSlice.call(a);
+    b = pSlice.call(b);
+    return _deepEqual(a, b, strict);
+  }
+  var ka = objectKeys(a);
+  var kb = objectKeys(b);
+  var key, i;
+  // having the same number of owned properties (keys incorporates
+  // hasOwnProperty)
+  if (ka.length !== kb.length)
+    return false;
+  //the same set of keys (although not necessarily the same order),
+  ka.sort();
+  kb.sort();
+  //~~~cheap key test
+  for (i = ka.length - 1; i >= 0; i--) {
+    if (ka[i] !== kb[i])
+      return false;
+  }
+  //equivalent values for every corresponding key, and
+  //~~~possibly expensive deep test
+  for (i = ka.length - 1; i >= 0; i--) {
+    key = ka[i];
+    if (!_deepEqual(a[key], b[key], strict, actualVisitedObjects))
+      return false;
+  }
+  return true;
+}
 
-function EC(options) {
-  if (!(this instanceof EC))
-    return new EC(options);
+// 8. The non-equivalence assertion tests for any deep inequality.
+// assert.notDeepEqual(actual, expected, message_opt);
 
-  // Shortcut `elliptic.ec(curve-name)`
-  if (typeof options === 'string') {
-    assert(elliptic.curves.hasOwnProperty(options), 'Unknown curve ' + options);
+assert.notDeepEqual = function notDeepEqual(actual, expected, message) {
+  if (_deepEqual(actual, expected, false)) {
+    fail(actual, expected, message, 'notDeepEqual', assert.notDeepEqual);
+  }
+};
 
-    options = elliptic.curves[options];
+assert.notDeepStrictEqual = notDeepStrictEqual;
+function notDeepStrictEqual(actual, expected, message) {
+  if (_deepEqual(actual, expected, true)) {
+    fail(actual, expected, message, 'notDeepStrictEqual', notDeepStrictEqual);
   }
+}
 
-  // Shortcut for `elliptic.ec(elliptic.curves.curveName)`
-  if (options instanceof elliptic.curves.PresetCurve)
-    options = { curve: options };
 
-  this.curve = options.curve.curve;
-  this.n = this.curve.n;
-  this.nh = this.n.ushrn(1);
-  this.g = this.curve.g;
+// 9. The strict equality assertion tests strict equality, as determined by ===.
+// assert.strictEqual(actual, expected, message_opt);
 
-  // Point on curve
-  this.g = options.curve.g;
-  this.g.precompute(options.curve.n.bitLength() + 1);
+assert.strictEqual = function strictEqual(actual, expected, message) {
+  if (actual !== expected) {
+    fail(actual, expected, message, '===', assert.strictEqual);
+  }
+};
 
-  // Hash for function for DRBG
-  this.hash = options.hash || options.curve.hash;
-}
-module.exports = EC;
+// 10. The strict non-equality assertion tests for strict inequality, as
+// determined by !==.  assert.notStrictEqual(actual, expected, message_opt);
 
-EC.prototype.keyPair = function keyPair(options) {
-  return new KeyPair(this, options);
+assert.notStrictEqual = function notStrictEqual(actual, expected, message) {
+  if (actual === expected) {
+    fail(actual, expected, message, '!==', assert.notStrictEqual);
+  }
 };
 
-EC.prototype.keyFromPrivate = function keyFromPrivate(priv, enc) {
-  return KeyPair.fromPrivate(this, priv, enc);
-};
+function expectedException(actual, expected) {
+  if (!actual || !expected) {
+    return false;
+  }
 
-EC.prototype.keyFromPublic = function keyFromPublic(pub, enc) {
-  return KeyPair.fromPublic(this, pub, enc);
-};
+  if (Object.prototype.toString.call(expected) == '[object RegExp]') {
+    return expected.test(actual);
+  }
 
-EC.prototype.genKeyPair = function genKeyPair(options) {
-  if (!options)
-    options = {};
+  try {
+    if (actual instanceof expected) {
+      return true;
+    }
+  } catch (e) {
+    // Ignore.  The instanceof check doesn't work for arrow functions.
+  }
 
-  // Instantiate Hmac_DRBG
-  var drbg = new HmacDRBG({
-    hash: this.hash,
-    pers: options.pers,
-    persEnc: options.persEnc || 'utf8',
-    entropy: options.entropy || elliptic.rand(this.hash.hmacStrength),
-    entropyEnc: options.entropy && options.entropyEnc || 'utf8',
-    nonce: this.n.toArray()
-  });
+  if (Error.isPrototypeOf(expected)) {
+    return false;
+  }
 
-  var bytes = this.n.byteLength();
-  var ns2 = this.n.sub(new BN(2));
-  do {
-    var priv = new BN(drbg.generate(bytes));
-    if (priv.cmp(ns2) > 0)
-      continue;
+  return expected.call({}, actual) === true;
+}
 
-    priv.iaddn(1);
-    return this.keyFromPrivate(priv);
-  } while (true);
-};
+function _tryBlock(block) {
+  var error;
+  try {
+    block();
+  } catch (e) {
+    error = e;
+  }
+  return error;
+}
 
-EC.prototype._truncateToN = function truncateToN(msg, truncOnly) {
-  var delta = msg.byteLength() * 8 - this.n.bitLength();
-  if (delta > 0)
-    msg = msg.ushrn(delta);
-  if (!truncOnly && msg.cmp(this.n) >= 0)
-    return msg.sub(this.n);
-  else
-    return msg;
-};
+function _throws(shouldThrow, block, expected, message) {
+  var actual;
 
-EC.prototype.sign = function sign(msg, key, enc, options) {
-  if (typeof enc === 'object') {
-    options = enc;
-    enc = null;
+  if (typeof block !== 'function') {
+    throw new TypeError('"block" argument must be a function');
   }
-  if (!options)
-    options = {};
 
-  key = this.keyFromPrivate(key, enc);
-  msg = this._truncateToN(new BN(msg, 16));
+  if (typeof expected === 'string') {
+    message = expected;
+    expected = null;
+  }
 
-  // Zero-extend key to provide enough entropy
-  var bytes = this.n.byteLength();
-  var bkey = key.getPrivate().toArray('be', bytes);
+  actual = _tryBlock(block);
 
-  // Zero-extend nonce to have the same byte size as N
-  var nonce = msg.toArray('be', bytes);
+  message = (expected && expected.name ? ' (' + expected.name + ').' : '.') +
+            (message ? ' ' + message : '.');
 
-  // Instantiate Hmac_DRBG
-  var drbg = new HmacDRBG({
-    hash: this.hash,
-    entropy: bkey,
-    nonce: nonce,
-    pers: options.pers,
-    persEnc: options.persEnc || 'utf8'
-  });
+  if (shouldThrow && !actual) {
+    fail(actual, expected, 'Missing expected exception' + message);
+  }
 
-  // Number of bytes to generate
-  var ns1 = this.n.sub(new BN(1));
+  var userProvidedMessage = typeof message === 'string';
+  var isUnwantedException = !shouldThrow && util.isError(actual);
+  var isUnexpectedException = !shouldThrow && actual && !expected;
 
-  for (var iter = 0; true; iter++) {
-    var k = options.k ?
-        options.k(iter) :
-        new BN(drbg.generate(this.n.byteLength()));
-    k = this._truncateToN(k, true);
-    if (k.cmpn(1) <= 0 || k.cmp(ns1) >= 0)
-      continue;
+  if ((isUnwantedException &&
+      userProvidedMessage &&
+      expectedException(actual, expected)) ||
+      isUnexpectedException) {
+    fail(actual, expected, 'Got unwanted exception' + message);
+  }
 
-    var kp = this.g.mul(k);
-    if (kp.isInfinity())
-      continue;
+  if ((shouldThrow && actual && expected &&
+      !expectedException(actual, expected)) || (!shouldThrow && actual)) {
+    throw actual;
+  }
+}
 
-    var kpX = kp.getX();
-    var r = kpX.umod(this.n);
-    if (r.cmpn(0) === 0)
-      continue;
+// 11. Expected to throw an error:
+// assert.throws(block, Error_opt, message_opt);
 
-    var s = k.invm(this.n).mul(r.mul(key.getPrivate()).iadd(msg));
-    s = s.umod(this.n);
-    if (s.cmpn(0) === 0)
-      continue;
+assert.throws = function(block, /*optional*/error, /*optional*/message) {
+  _throws(true, block, error, message);
+};
 
-    var recoveryParam = (kp.getY().isOdd() ? 1 : 0) |
-                        (kpX.cmp(r) !== 0 ? 2 : 0);
+// EXTENSION! This is annoying to write outside this module.
+assert.doesNotThrow = function(block, /*optional*/error, /*optional*/message) {
+  _throws(false, block, error, message);
+};
 
-    // Use complement of `s`, if it is > `n / 2`
-    if (options.canonical && s.cmp(this.nh) > 0) {
-      s = this.n.sub(s);
-      recoveryParam ^= 1;
-    }
+assert.ifError = function(err) { if (err) throw err; };
 
-    return new Signature({ r: r, s: s, recoveryParam: recoveryParam });
+var objectKeys = Object.keys || function (obj) {
+  var keys = [];
+  for (var key in obj) {
+    if (hasOwn.call(obj, key)) keys.push(key);
   }
+  return keys;
 };
 
-EC.prototype.verify = function verify(msg, signature, key, enc) {
-  msg = this._truncateToN(new BN(msg, 16));
-  key = this.keyFromPublic(key, enc);
-  signature = new Signature(signature, 'hex');
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"util/":148}],16:[function(require,module,exports){
+'use strict'
 
-  // Perform primitive values validation
-  var r = signature.r;
-  var s = signature.s;
-  if (r.cmpn(1) < 0 || r.cmp(this.n) >= 0)
-    return false;
-  if (s.cmpn(1) < 0 || s.cmp(this.n) >= 0)
-    return false;
+exports.byteLength = byteLength
+exports.toByteArray = toByteArray
+exports.fromByteArray = fromByteArray
 
-  // Validate signature
-  var sinv = s.invm(this.n);
-  var u1 = sinv.mul(msg).umod(this.n);
-  var u2 = sinv.mul(r).umod(this.n);
+var lookup = []
+var revLookup = []
+var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array
 
-  if (!this.curve._maxwellTrick) {
-    var p = this.g.mulAdd(u1, key.getPublic(), u2);
-    if (p.isInfinity())
-      return false;
+var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
+for (var i = 0, len = code.length; i < len; ++i) {
+  lookup[i] = code[i]
+  revLookup[code.charCodeAt(i)] = i
+}
 
-    return p.getX().umod(this.n).cmp(r) === 0;
+revLookup['-'.charCodeAt(0)] = 62
+revLookup['_'.charCodeAt(0)] = 63
+
+function placeHoldersCount (b64) {
+  var len = b64.length
+  if (len % 4 > 0) {
+    throw new Error('Invalid string. Length must be a multiple of 4')
   }
 
-  // NOTE: Greg Maxwell's trick, inspired by:
-  // https://git.io/vad3K
+  // the number of equal signs (place holders)
+  // if there are two placeholders, than the two characters before it
+  // represent one byte
+  // if there is only one, then the three characters before it represent 2 bytes
+  // this is just a cheap hack to not do indexOf twice
+  return b64[len - 2] === '=' ? 2 : b64[len - 1] === '=' ? 1 : 0
+}
 
-  var p = this.g.jmulAdd(u1, key.getPublic(), u2);
-  if (p.isInfinity())
-    return false;
+function byteLength (b64) {
+  // base64 is 4/3 + up to two characters of the original data
+  return b64.length * 3 / 4 - placeHoldersCount(b64)
+}
 
-  // Compare `p.x` of Jacobian point with `r`,
-  // this will do `p.x == r * p.z^2` instead of multiplying `p.x` by the
-  // inverse of `p.z^2`
-  return p.eqXToP(r);
-};
+function toByteArray (b64) {
+  var i, j, l, tmp, placeHolders, arr
+  var len = b64.length
+  placeHolders = placeHoldersCount(b64)
 
-EC.prototype.recoverPubKey = function(msg, signature, j, enc) {
-  assert((3 & j) === j, 'The recovery param is more than two bits');
-  signature = new Signature(signature, enc);
+  arr = new Arr(len * 3 / 4 - placeHolders)
 
-  var n = this.n;
-  var e = new BN(msg);
-  var r = signature.r;
-  var s = signature.s;
+  // if there are placeholders, only get up to the last complete 4 chars
+  l = placeHolders > 0 ? len - 4 : len
 
-  // A set LSB signifies that the y-coordinate is odd
-  var isYOdd = j & 1;
-  var isSecondKey = j >> 1;
-  if (r.cmp(this.curve.p.umod(this.curve.n)) >= 0 && isSecondKey)
-    throw new Error('Unable to find sencond key candinate');
-
-  // 1.1. Let x = r + jn.
-  if (isSecondKey)
-    r = this.curve.pointFromX(r.add(this.curve.n), isYOdd);
-  else
-    r = this.curve.pointFromX(r, isYOdd);
-
-  var rInv = signature.r.invm(n);
-  var s1 = n.sub(e).mul(rInv).umod(n);
-  var s2 = s.mul(rInv).umod(n);
-
-  // 1.6.1 Compute Q = r^-1 (sR -  eG)
-  //               Q = r^-1 (sR + -eG)
-  return this.g.mulAdd(s1, r, s2);
-};
-
-EC.prototype.getKeyRecoveryParam = function(e, signature, Q, enc) {
-  signature = new Signature(signature, enc);
-  if (signature.recoveryParam !== null)
-    return signature.recoveryParam;
-
-  for (var i = 0; i < 4; i++) {
-    var Qprime;
-    try {
-      Qprime = this.recoverPubKey(e, signature, i);
-    } catch (e) {
-      continue;
-    }
+  var L = 0
 
-    if (Qprime.eq(Q))
-      return i;
+  for (i = 0, j = 0; i < l; i += 4, j += 3) {
+    tmp = (revLookup[b64.charCodeAt(i)] << 18) | (revLookup[b64.charCodeAt(i + 1)] << 12) | (revLookup[b64.charCodeAt(i + 2)] << 6) | revLookup[b64.charCodeAt(i + 3)]
+    arr[L++] = (tmp >> 16) & 0xFF
+    arr[L++] = (tmp >> 8) & 0xFF
+    arr[L++] = tmp & 0xFF
   }
-  throw new Error('Unable to find valid recovery factor');
-};
-
-},{"../../elliptic":97,"./key":105,"./signature":106,"bn.js":81,"hmac-drbg":120}],105:[function(require,module,exports){
-'use strict';
 
-var BN = require('bn.js');
-var elliptic = require('../../elliptic');
-var utils = elliptic.utils;
-var assert = utils.assert;
+  if (placeHolders === 2) {
+    tmp = (revLookup[b64.charCodeAt(i)] << 2) | (revLookup[b64.charCodeAt(i + 1)] >> 4)
+    arr[L++] = tmp & 0xFF
+  } else if (placeHolders === 1) {
+    tmp = (revLookup[b64.charCodeAt(i)] << 10) | (revLookup[b64.charCodeAt(i + 1)] << 4) | (revLookup[b64.charCodeAt(i + 2)] >> 2)
+    arr[L++] = (tmp >> 8) & 0xFF
+    arr[L++] = tmp & 0xFF
+  }
 
-function KeyPair(ec, options) {
-  this.ec = ec;
-  this.priv = null;
-  this.pub = null;
+  return arr
+}
 
-  // KeyPair(ec, { priv: ..., pub: ... })
-  if (options.priv)
-    this._importPrivate(options.priv, options.privEnc);
-  if (options.pub)
-    this._importPublic(options.pub, options.pubEnc);
+function tripletToBase64 (num) {
+  return lookup[num >> 18 & 0x3F] + lookup[num >> 12 & 0x3F] + lookup[num >> 6 & 0x3F] + lookup[num & 0x3F]
 }
-module.exports = KeyPair;
 
-KeyPair.fromPublic = function fromPublic(ec, pub, enc) {
-  if (pub instanceof KeyPair)
-    return pub;
+function encodeChunk (uint8, start, end) {
+  var tmp
+  var output = []
+  for (var i = start; i < end; i += 3) {
+    tmp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2])
+    output.push(tripletToBase64(tmp))
+  }
+  return output.join('')
+}
 
-  return new KeyPair(ec, {
-    pub: pub,
-    pubEnc: enc
-  });
-};
+function fromByteArray (uint8) {
+  var tmp
+  var len = uint8.length
+  var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes
+  var output = ''
+  var parts = []
+  var maxChunkLength = 16383 // must be multiple of 3
 
-KeyPair.fromPrivate = function fromPrivate(ec, priv, enc) {
-  if (priv instanceof KeyPair)
-    return priv;
+  // go through the array every three bytes, we'll deal with trailing stuff later
+  for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
+    parts.push(encodeChunk(uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)))
+  }
 
-  return new KeyPair(ec, {
-    priv: priv,
-    privEnc: enc
-  });
-};
+  // pad the end with zeros, but make sure to not forget the extra bytes
+  if (extraBytes === 1) {
+    tmp = uint8[len - 1]
+    output += lookup[tmp >> 2]
+    output += lookup[(tmp << 4) & 0x3F]
+    output += '=='
+  } else if (extraBytes === 2) {
+    tmp = (uint8[len - 2] << 8) + (uint8[len - 1])
+    output += lookup[tmp >> 10]
+    output += lookup[(tmp >> 4) & 0x3F]
+    output += lookup[(tmp << 2) & 0x3F]
+    output += '='
+  }
 
-KeyPair.prototype.validate = function validate() {
-  var pub = this.getPublic();
+  parts.push(output)
 
-  if (pub.isInfinity())
-    return { result: false, reason: 'Invalid public key' };
-  if (!pub.validate())
-    return { result: false, reason: 'Public key is not a point' };
-  if (!pub.mul(this.ec.curve.n).isInfinity())
-    return { result: false, reason: 'Public key * N != O' };
+  return parts.join('')
+}
 
-  return { result: true, reason: null };
-};
+},{}],17:[function(require,module,exports){
+(function (module, exports) {
+  'use strict';
 
-KeyPair.prototype.getPublic = function getPublic(compact, enc) {
-  // compact is optional argument
-  if (typeof compact === 'string') {
-    enc = compact;
-    compact = null;
+  // Utils
+  function assert (val, msg) {
+    if (!val) throw new Error(msg || 'Assertion failed');
   }
 
-  if (!this.pub)
-    this.pub = this.ec.g.mul(this.priv);
+  // Could use `inherits` module, but don't want to move from single file
+  // architecture yet.
+  function inherits (ctor, superCtor) {
+    ctor.super_ = superCtor;
+    var TempCtor = function () {};
+    TempCtor.prototype = superCtor.prototype;
+    ctor.prototype = new TempCtor();
+    ctor.prototype.constructor = ctor;
+  }
 
-  if (!enc)
-    return this.pub;
+  // BN
 
-  return this.pub.encode(enc, compact);
-};
+  function BN (number, base, endian) {
+    if (BN.isBN(number)) {
+      return number;
+    }
 
-KeyPair.prototype.getPrivate = function getPrivate(enc) {
-  if (enc === 'hex')
-    return this.priv.toString(16, 2);
-  else
-    return this.priv;
-};
+    this.negative = 0;
+    this.words = null;
+    this.length = 0;
 
-KeyPair.prototype._importPrivate = function _importPrivate(key, enc) {
-  this.priv = new BN(key, enc || 16);
+    // Reduction context
+    this.red = null;
 
-  // Ensure that the priv won't be bigger than n, otherwise we may fail
-  // in fixed multiplication method
-  this.priv = this.priv.umod(this.ec.curve.n);
-};
+    if (number !== null) {
+      if (base === 'le' || base === 'be') {
+        endian = base;
+        base = 10;
+      }
 
-KeyPair.prototype._importPublic = function _importPublic(key, enc) {
-  if (key.x || key.y) {
-    // Montgomery points only have an `x` coordinate.
-    // Weierstrass/Edwards points on the other hand have both `x` and
-    // `y` coordinates.
-    if (this.ec.curve.type === 'mont') {
-      assert(key.x, 'Need x coordinate');
-    } else if (this.ec.curve.type === 'short' ||
-               this.ec.curve.type === 'edwards') {
-      assert(key.x && key.y, 'Need both x and y coordinate');
+      this._init(number || 0, base || 10, endian || 'be');
     }
-    this.pub = this.ec.curve.point(key.x, key.y);
-    return;
   }
-  this.pub = this.ec.curve.decodePoint(key, enc);
-};
-
-// ECDH
-KeyPair.prototype.derive = function derive(pub) {
-  return pub.mul(this.priv).getX();
-};
+  if (typeof module === 'object') {
+    module.exports = BN;
+  } else {
+    exports.BN = BN;
+  }
 
-// ECDSA
-KeyPair.prototype.sign = function sign(msg, enc, options) {
-  return this.ec.sign(msg, this, enc, options);
-};
+  BN.BN = BN;
+  BN.wordSize = 26;
 
-KeyPair.prototype.verify = function verify(msg, signature) {
-  return this.ec.verify(msg, signature, this);
-};
+  var Buffer;
+  try {
+    Buffer = require('buf' + 'fer').Buffer;
+  } catch (e) {
+  }
 
-KeyPair.prototype.inspect = function inspect() {
-  return '<Key priv: ' + (this.priv && this.priv.toString(16, 2)) +
-         ' pub: ' + (this.pub && this.pub.inspect()) + ' >';
-};
+  BN.isBN = function isBN (num) {
+    if (num instanceof BN) {
+      return true;
+    }
 
-},{"../../elliptic":97,"bn.js":81}],106:[function(require,module,exports){
-'use strict';
+    return num !== null && typeof num === 'object' &&
+      num.constructor.wordSize === BN.wordSize && Array.isArray(num.words);
+  };
 
-var BN = require('bn.js');
+  BN.max = function max (left, right) {
+    if (left.cmp(right) > 0) return left;
+    return right;
+  };
 
-var elliptic = require('../../elliptic');
-var utils = elliptic.utils;
-var assert = utils.assert;
+  BN.min = function min (left, right) {
+    if (left.cmp(right) < 0) return left;
+    return right;
+  };
 
-function Signature(options, enc) {
-  if (options instanceof Signature)
-    return options;
+  BN.prototype._init = function init (number, base, endian) {
+    if (typeof number === 'number') {
+      return this._initNumber(number, base, endian);
+    }
 
-  if (this._importDER(options, enc))
-    return;
+    if (typeof number === 'object') {
+      return this._initArray(number, base, endian);
+    }
 
-  assert(options.r && options.s, 'Signature without r or s');
-  this.r = new BN(options.r, 16);
-  this.s = new BN(options.s, 16);
-  if (options.recoveryParam === undefined)
-    this.recoveryParam = null;
-  else
-    this.recoveryParam = options.recoveryParam;
-}
-module.exports = Signature;
+    if (base === 'hex') {
+      base = 16;
+    }
+    assert(base === (base | 0) && base >= 2 && base <= 36);
 
-function Position() {
-  this.place = 0;
-}
+    number = number.toString().replace(/\s+/g, '');
+    var start = 0;
+    if (number[0] === '-') {
+      start++;
+    }
 
-function getLength(buf, p) {
-  var initial = buf[p.place++];
-  if (!(initial & 0x80)) {
-    return initial;
-  }
-  var octetLen = initial & 0xf;
-  var val = 0;
-  for (var i = 0, off = p.place; i < octetLen; i++, off++) {
-    val <<= 8;
-    val |= buf[off];
-  }
-  p.place = off;
-  return val;
-}
+    if (base === 16) {
+      this._parseHex(number, start);
+    } else {
+      this._parseBase(number, base, start);
+    }
 
-function rmPadding(buf) {
-  var i = 0;
-  var len = buf.length - 1;
-  while (!buf[i] && !(buf[i + 1] & 0x80) && i < len) {
-    i++;
-  }
-  if (i === 0) {
-    return buf;
-  }
-  return buf.slice(i);
-}
+    if (number[0] === '-') {
+      this.negative = 1;
+    }
 
-Signature.prototype._importDER = function _importDER(data, enc) {
-  data = utils.toArray(data, enc);
-  var p = new Position();
-  if (data[p.place++] !== 0x30) {
-    return false;
-  }
-  var len = getLength(data, p);
-  if ((len + p.place) !== data.length) {
-    return false;
-  }
-  if (data[p.place++] !== 0x02) {
-    return false;
-  }
-  var rlen = getLength(data, p);
-  var r = data.slice(p.place, rlen + p.place);
-  p.place += rlen;
-  if (data[p.place++] !== 0x02) {
-    return false;
-  }
-  var slen = getLength(data, p);
-  if (data.length !== slen + p.place) {
-    return false;
-  }
-  var s = data.slice(p.place, slen + p.place);
-  if (r[0] === 0 && (r[1] & 0x80)) {
-    r = r.slice(1);
-  }
-  if (s[0] === 0 && (s[1] & 0x80)) {
-    s = s.slice(1);
-  }
+    this.strip();
 
-  this.r = new BN(r);
-  this.s = new BN(s);
-  this.recoveryParam = null;
+    if (endian !== 'le') return;
 
-  return true;
-};
+    this._initArray(this.toArray(), base, endian);
+  };
 
-function constructLength(arr, len) {
-  if (len < 0x80) {
-    arr.push(len);
-    return;
-  }
-  var octets = 1 + (Math.log(len) / Math.LN2 >>> 3);
-  arr.push(octets | 0x80);
-  while (--octets) {
-    arr.push((len >>> (octets << 3)) & 0xff);
-  }
-  arr.push(len);
-}
+  BN.prototype._initNumber = function _initNumber (number, base, endian) {
+    if (number < 0) {
+      this.negative = 1;
+      number = -number;
+    }
+    if (number < 0x4000000) {
+      this.words = [ number & 0x3ffffff ];
+      this.length = 1;
+    } else if (number < 0x10000000000000) {
+      this.words = [
+        number & 0x3ffffff,
+        (number / 0x4000000) & 0x3ffffff
+      ];
+      this.length = 2;
+    } else {
+      assert(number < 0x20000000000000); // 2 ^ 53 (unsafe)
+      this.words = [
+        number & 0x3ffffff,
+        (number / 0x4000000) & 0x3ffffff,
+        1
+      ];
+      this.length = 3;
+    }
 
-Signature.prototype.toDER = function toDER(enc) {
-  var r = this.r.toArray();
-  var s = this.s.toArray();
+    if (endian !== 'le') return;
 
-  // Pad values
-  if (r[0] & 0x80)
-    r = [ 0 ].concat(r);
-  // Pad values
-  if (s[0] & 0x80)
-    s = [ 0 ].concat(s);
+    // Reverse the bytes
+    this._initArray(this.toArray(), base, endian);
+  };
 
-  r = rmPadding(r);
-  s = rmPadding(s);
+  BN.prototype._initArray = function _initArray (number, base, endian) {
+    // Perhaps a Uint8Array
+    assert(typeof number.length === 'number');
+    if (number.length <= 0) {
+      this.words = [ 0 ];
+      this.length = 1;
+      return this;
+    }
 
-  while (!s[0] && !(s[1] & 0x80)) {
-    s = s.slice(1);
-  }
-  var arr = [ 0x02 ];
-  constructLength(arr, r.length);
-  arr = arr.concat(r);
-  arr.push(0x02);
-  constructLength(arr, s.length);
-  var backHalf = arr.concat(s);
-  var res = [ 0x30 ];
-  constructLength(res, backHalf.length);
-  res = res.concat(backHalf);
-  return utils.encode(res, enc);
-};
+    this.length = Math.ceil(number.length / 3);
+    this.words = new Array(this.length);
+    for (var i = 0; i < this.length; i++) {
+      this.words[i] = 0;
+    }
 
-},{"../../elliptic":97,"bn.js":81}],107:[function(require,module,exports){
-'use strict';
+    var j, w;
+    var off = 0;
+    if (endian === 'be') {
+      for (i = number.length - 1, j = 0; i >= 0; i -= 3) {
+        w = number[i] | (number[i - 1] << 8) | (number[i - 2] << 16);
+        this.words[j] |= (w << off) & 0x3ffffff;
+        this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff;
+        off += 24;
+        if (off >= 26) {
+          off -= 26;
+          j++;
+        }
+      }
+    } else if (endian === 'le') {
+      for (i = 0, j = 0; i < number.length; i += 3) {
+        w = number[i] | (number[i + 1] << 8) | (number[i + 2] << 16);
+        this.words[j] |= (w << off) & 0x3ffffff;
+        this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff;
+        off += 24;
+        if (off >= 26) {
+          off -= 26;
+          j++;
+        }
+      }
+    }
+    return this.strip();
+  };
 
-var hash = require('hash.js');
-var elliptic = require('../../elliptic');
-var utils = elliptic.utils;
-var assert = utils.assert;
-var parseBytes = utils.parseBytes;
-var KeyPair = require('./key');
-var Signature = require('./signature');
+  function parseHex (str, start, end) {
+    var r = 0;
+    var len = Math.min(str.length, end);
+    for (var i = start; i < len; i++) {
+      var c = str.charCodeAt(i) - 48;
 
-function EDDSA(curve) {
-  assert(curve === 'ed25519', 'only tested with ed25519 so far');
+      r <<= 4;
 
-  if (!(this instanceof EDDSA))
-    return new EDDSA(curve);
+      // 'a' - 'f'
+      if (c >= 49 && c <= 54) {
+        r |= c - 49 + 0xa;
 
-  var curve = elliptic.curves[curve].curve;
-  this.curve = curve;
-  this.g = curve.g;
-  this.g.precompute(curve.n.bitLength() + 1);
+      // 'A' - 'F'
+      } else if (c >= 17 && c <= 22) {
+        r |= c - 17 + 0xa;
 
-  this.pointClass = curve.point().constructor;
-  this.encodingLength = Math.ceil(curve.n.bitLength() / 8);
-  this.hash = hash.sha512;
-}
+      // '0' - '9'
+      } else {
+        r |= c & 0xf;
+      }
+    }
+    return r;
+  }
 
-module.exports = EDDSA;
+  BN.prototype._parseHex = function _parseHex (number, start) {
+    // Create possibly bigger array to ensure that it fits the number
+    this.length = Math.ceil((number.length - start) / 6);
+    this.words = new Array(this.length);
+    for (var i = 0; i < this.length; i++) {
+      this.words[i] = 0;
+    }
 
-/**
-* @param {Array|String} message - message bytes
-* @param {Array|String|KeyPair} secret - secret bytes or a keypair
-* @returns {Signature} - signature
-*/
-EDDSA.prototype.sign = function sign(message, secret) {
-  message = parseBytes(message);
-  var key = this.keyFromSecret(secret);
-  var r = this.hashInt(key.messagePrefix(), message);
-  var R = this.g.mul(r);
-  var Rencoded = this.encodePoint(R);
-  var s_ = this.hashInt(Rencoded, key.pubBytes(), message)
-               .mul(key.priv());
-  var S = r.add(s_).umod(this.curve.n);
-  return this.makeSignature({ R: R, S: S, Rencoded: Rencoded });
-};
-
-/**
-* @param {Array} message - message bytes
-* @param {Array|String|Signature} sig - sig bytes
-* @param {Array|String|Point|KeyPair} pub - public key
-* @returns {Boolean} - true if public key matches sig of message
-*/
-EDDSA.prototype.verify = function verify(message, sig, pub) {
-  message = parseBytes(message);
-  sig = this.makeSignature(sig);
-  var key = this.keyFromPublic(pub);
-  var h = this.hashInt(sig.Rencoded(), key.pubBytes(), message);
-  var SG = this.g.mul(sig.S());
-  var RplusAh = sig.R().add(key.pub().mul(h));
-  return RplusAh.eq(SG);
-};
-
-EDDSA.prototype.hashInt = function hashInt() {
-  var hash = this.hash();
-  for (var i = 0; i < arguments.length; i++)
-    hash.update(arguments[i]);
-  return utils.intFromLE(hash.digest()).umod(this.curve.n);
-};
-
-EDDSA.prototype.keyFromPublic = function keyFromPublic(pub) {
-  return KeyPair.fromPublic(this, pub);
-};
+    var j, w;
+    // Scan 24-bit chunks and add them to the number
+    var off = 0;
+    for (i = number.length - 6, j = 0; i >= start; i -= 6) {
+      w = parseHex(number, i, i + 6);
+      this.words[j] |= (w << off) & 0x3ffffff;
+      // NOTE: `0x3fffff` is intentional here, 26bits max shift + 24bit hex limb
+      this.words[j + 1] |= w >>> (26 - off) & 0x3fffff;
+      off += 24;
+      if (off >= 26) {
+        off -= 26;
+        j++;
+      }
+    }
+    if (i + 6 !== start) {
+      w = parseHex(number, start, i + 6);
+      this.words[j] |= (w << off) & 0x3ffffff;
+      this.words[j + 1] |= w >>> (26 - off) & 0x3fffff;
+    }
+    this.strip();
+  };
 
-EDDSA.prototype.keyFromSecret = function keyFromSecret(secret) {
-  return KeyPair.fromSecret(this, secret);
-};
+  function parseBase (str, start, end, mul) {
+    var r = 0;
+    var len = Math.min(str.length, end);
+    for (var i = start; i < len; i++) {
+      var c = str.charCodeAt(i) - 48;
 
-EDDSA.prototype.makeSignature = function makeSignature(sig) {
-  if (sig instanceof Signature)
-    return sig;
-  return new Signature(this, sig);
-};
+      r *= mul;
 
-/**
-* * https://tools.ietf.org/html/draft-josefsson-eddsa-ed25519-03#section-5.2
-*
-* EDDSA defines methods for encoding and decoding points and integers. These are
-* helper convenience methods, that pass along to utility functions implied
-* parameters.
-*
-*/
-EDDSA.prototype.encodePoint = function encodePoint(point) {
-  var enc = point.getY().toArray('le', this.encodingLength);
-  enc[this.encodingLength - 1] |= point.getX().isOdd() ? 0x80 : 0;
-  return enc;
-};
+      // 'a'
+      if (c >= 49) {
+        r += c - 49 + 0xa;
 
-EDDSA.prototype.decodePoint = function decodePoint(bytes) {
-  bytes = utils.parseBytes(bytes);
+      // 'A'
+      } else if (c >= 17) {
+        r += c - 17 + 0xa;
 
-  var lastIx = bytes.length - 1;
-  var normed = bytes.slice(0, lastIx).concat(bytes[lastIx] & ~0x80);
-  var xIsOdd = (bytes[lastIx] & 0x80) !== 0;
+      // '0' - '9'
+      } else {
+        r += c;
+      }
+    }
+    return r;
+  }
 
-  var y = utils.intFromLE(normed);
-  return this.curve.pointFromY(y, xIsOdd);
-};
+  BN.prototype._parseBase = function _parseBase (number, base, start) {
+    // Initialize as zero
+    this.words = [ 0 ];
+    this.length = 1;
 
-EDDSA.prototype.encodeInt = function encodeInt(num) {
-  return num.toArray('le', this.encodingLength);
-};
+    // Find length of limb in base
+    for (var limbLen = 0, limbPow = 1; limbPow <= 0x3ffffff; limbPow *= base) {
+      limbLen++;
+    }
+    limbLen--;
+    limbPow = (limbPow / base) | 0;
 
-EDDSA.prototype.decodeInt = function decodeInt(bytes) {
-  return utils.intFromLE(bytes);
-};
+    var total = number.length - start;
+    var mod = total % limbLen;
+    var end = Math.min(total, total - mod) + start;
 
-EDDSA.prototype.isPoint = function isPoint(val) {
-  return val instanceof this.pointClass;
-};
+    var word = 0;
+    for (var i = start; i < end; i += limbLen) {
+      word = parseBase(number, i, i + limbLen, base);
 
-},{"../../elliptic":97,"./key":108,"./signature":109,"hash.js":114}],108:[function(require,module,exports){
-'use strict';
+      this.imuln(limbPow);
+      if (this.words[0] + word < 0x4000000) {
+        this.words[0] += word;
+      } else {
+        this._iaddn(word);
+      }
+    }
 
-var elliptic = require('../../elliptic');
-var utils = elliptic.utils;
-var assert = utils.assert;
-var parseBytes = utils.parseBytes;
-var cachedProperty = utils.cachedProperty;
+    if (mod !== 0) {
+      var pow = 1;
+      word = parseBase(number, i, number.length, base);
 
-/**
-* @param {EDDSA} eddsa - instance
-* @param {Object} params - public/private key parameters
-*
-* @param {Array<Byte>} [params.secret] - secret seed bytes
-* @param {Point} [params.pub] - public key point (aka `A` in eddsa terms)
-* @param {Array<Byte>} [params.pub] - public key point encoded as bytes
-*
-*/
-function KeyPair(eddsa, params) {
-  this.eddsa = eddsa;
-  this._secret = parseBytes(params.secret);
-  if (eddsa.isPoint(params.pub))
-    this._pub = params.pub;
-  else
-    this._pubBytes = parseBytes(params.pub);
-}
+      for (i = 0; i < mod; i++) {
+        pow *= base;
+      }
 
-KeyPair.fromPublic = function fromPublic(eddsa, pub) {
-  if (pub instanceof KeyPair)
-    return pub;
-  return new KeyPair(eddsa, { pub: pub });
-};
+      this.imuln(pow);
+      if (this.words[0] + word < 0x4000000) {
+        this.words[0] += word;
+      } else {
+        this._iaddn(word);
+      }
+    }
+  };
 
-KeyPair.fromSecret = function fromSecret(eddsa, secret) {
-  if (secret instanceof KeyPair)
-    return secret;
-  return new KeyPair(eddsa, { secret: secret });
-};
+  BN.prototype.copy = function copy (dest) {
+    dest.words = new Array(this.length);
+    for (var i = 0; i < this.length; i++) {
+      dest.words[i] = this.words[i];
+    }
+    dest.length = this.length;
+    dest.negative = this.negative;
+    dest.red = this.red;
+  };
 
-KeyPair.prototype.secret = function secret() {
-  return this._secret;
-};
+  BN.prototype.clone = function clone () {
+    var r = new BN(null);
+    this.copy(r);
+    return r;
+  };
 
-cachedProperty(KeyPair, 'pubBytes', function pubBytes() {
-  return this.eddsa.encodePoint(this.pub());
-});
+  BN.prototype._expand = function _expand (size) {
+    while (this.length < size) {
+      this.words[this.length++] = 0;
+    }
+    return this;
+  };
 
-cachedProperty(KeyPair, 'pub', function pub() {
-  if (this._pubBytes)
-    return this.eddsa.decodePoint(this._pubBytes);
-  return this.eddsa.g.mul(this.priv());
-});
+  // Remove leading `0` from `this`
+  BN.prototype.strip = function strip () {
+    while (this.length > 1 && this.words[this.length - 1] === 0) {
+      this.length--;
+    }
+    return this._normSign();
+  };
 
-cachedProperty(KeyPair, 'privBytes', function privBytes() {
-  var eddsa = this.eddsa;
-  var hash = this.hash();
-  var lastIx = eddsa.encodingLength - 1;
+  BN.prototype._normSign = function _normSign () {
+    // -0 = 0
+    if (this.length === 1 && this.words[0] === 0) {
+      this.negative = 0;
+    }
+    return this;
+  };
 
-  var a = hash.slice(0, eddsa.encodingLength);
-  a[0] &= 248;
-  a[lastIx] &= 127;
-  a[lastIx] |= 64;
+  BN.prototype.inspect = function inspect () {
+    return (this.red ? '<BN-R: ' : '<BN: ') + this.toString(16) + '>';
+  };
 
-  return a;
-});
+  /*
 
-cachedProperty(KeyPair, 'priv', function priv() {
-  return this.eddsa.decodeInt(this.privBytes());
-});
+  var zeros = [];
+  var groupSizes = [];
+  var groupBases = [];
 
-cachedProperty(KeyPair, 'hash', function hash() {
-  return this.eddsa.hash().update(this.secret()).digest();
-});
+  var s = '';
+  var i = -1;
+  while (++i < BN.wordSize) {
+    zeros[i] = s;
+    s += '0';
+  }
+  groupSizes[0] = 0;
+  groupSizes[1] = 0;
+  groupBases[0] = 0;
+  groupBases[1] = 0;
+  var base = 2 - 1;
+  while (++base < 36 + 1) {
+    var groupSize = 0;
+    var groupBase = 1;
+    while (groupBase < (1 << BN.wordSize) / base) {
+      groupBase *= base;
+      groupSize += 1;
+    }
+    groupSizes[base] = groupSize;
+    groupBases[base] = groupBase;
+  }
 
-cachedProperty(KeyPair, 'messagePrefix', function messagePrefix() {
-  return this.hash().slice(this.eddsa.encodingLength);
-});
+  */
 
-KeyPair.prototype.sign = function sign(message) {
-  assert(this._secret, 'KeyPair can only verify');
-  return this.eddsa.sign(message, this);
-};
+  var zeros = [
+    '',
+    '0',
+    '00',
+    '000',
+    '0000',
+    '00000',
+    '000000',
+    '0000000',
+    '00000000',
+    '000000000',
+    '0000000000',
+    '00000000000',
+    '000000000000',
+    '0000000000000',
+    '00000000000000',
+    '000000000000000',
+    '0000000000000000',
+    '00000000000000000',
+    '000000000000000000',
+    '0000000000000000000',
+    '00000000000000000000',
+    '000000000000000000000',
+    '0000000000000000000000',
+    '00000000000000000000000',
+    '000000000000000000000000',
+    '0000000000000000000000000'
+  ];
 
-KeyPair.prototype.verify = function verify(message, sig) {
-  return this.eddsa.verify(message, sig, this);
-};
+  var groupSizes = [
+    0, 0,
+    25, 16, 12, 11, 10, 9, 8,
+    8, 7, 7, 7, 7, 6, 6,
+    6, 6, 6, 6, 6, 5, 5,
+    5, 5, 5, 5, 5, 5, 5,
+    5, 5, 5, 5, 5, 5, 5
+  ];
 
-KeyPair.prototype.getSecret = function getSecret(enc) {
-  assert(this._secret, 'KeyPair is public only');
-  return utils.encode(this.secret(), enc);
-};
+  var groupBases = [
+    0, 0,
+    33554432, 43046721, 16777216, 48828125, 60466176, 40353607, 16777216,
+    43046721, 10000000, 19487171, 35831808, 62748517, 7529536, 11390625,
+    16777216, 24137569, 34012224, 47045881, 64000000, 4084101, 5153632,
+    6436343, 7962624, 9765625, 11881376, 14348907, 17210368, 20511149,
+    24300000, 28629151, 33554432, 39135393, 45435424, 52521875, 60466176
+  ];
 
-KeyPair.prototype.getPublic = function getPublic(enc) {
-  return utils.encode(this.pubBytes(), enc);
-};
+  BN.prototype.toString = function toString (base, padding) {
+    base = base || 10;
+    padding = padding | 0 || 1;
 
-module.exports = KeyPair;
+    var out;
+    if (base === 16 || base === 'hex') {
+      out = '';
+      var off = 0;
+      var carry = 0;
+      for (var i = 0; i < this.length; i++) {
+        var w = this.words[i];
+        var word = (((w << off) | carry) & 0xffffff).toString(16);
+        carry = (w >>> (24 - off)) & 0xffffff;
+        if (carry !== 0 || i !== this.length - 1) {
+          out = zeros[6 - word.length] + word + out;
+        } else {
+          out = word + out;
+        }
+        off += 2;
+        if (off >= 26) {
+          off -= 26;
+          i--;
+        }
+      }
+      if (carry !== 0) {
+        out = carry.toString(16) + out;
+      }
+      while (out.length % padding !== 0) {
+        out = '0' + out;
+      }
+      if (this.negative !== 0) {
+        out = '-' + out;
+      }
+      return out;
+    }
 
-},{"../../elliptic":97}],109:[function(require,module,exports){
-'use strict';
+    if (base === (base | 0) && base >= 2 && base <= 36) {
+      // var groupSize = Math.floor(BN.wordSize * Math.LN2 / Math.log(base));
+      var groupSize = groupSizes[base];
+      // var groupBase = Math.pow(base, groupSize);
+      var groupBase = groupBases[base];
+      out = '';
+      var c = this.clone();
+      c.negative = 0;
+      while (!c.isZero()) {
+        var r = c.modn(groupBase).toString(base);
+        c = c.idivn(groupBase);
 
-var BN = require('bn.js');
-var elliptic = require('../../elliptic');
-var utils = elliptic.utils;
-var assert = utils.assert;
-var cachedProperty = utils.cachedProperty;
-var parseBytes = utils.parseBytes;
+        if (!c.isZero()) {
+          out = zeros[groupSize - r.length] + r + out;
+        } else {
+          out = r + out;
+        }
+      }
+      if (this.isZero()) {
+        out = '0' + out;
+      }
+      while (out.length % padding !== 0) {
+        out = '0' + out;
+      }
+      if (this.negative !== 0) {
+        out = '-' + out;
+      }
+      return out;
+    }
 
-/**
-* @param {EDDSA} eddsa - eddsa instance
-* @param {Array<Bytes>|Object} sig -
-* @param {Array<Bytes>|Point} [sig.R] - R point as Point or bytes
-* @param {Array<Bytes>|bn} [sig.S] - S scalar as bn or bytes
-* @param {Array<Bytes>} [sig.Rencoded] - R point encoded
-* @param {Array<Bytes>} [sig.Sencoded] - S scalar encoded
-*/
-function Signature(eddsa, sig) {
-  this.eddsa = eddsa;
+    assert(false, 'Base should be between 2 and 36');
+  };
 
-  if (typeof sig !== 'object')
-    sig = parseBytes(sig);
+  BN.prototype.toNumber = function toNumber () {
+    var ret = this.words[0];
+    if (this.length === 2) {
+      ret += this.words[1] * 0x4000000;
+    } else if (this.length === 3 && this.words[2] === 0x01) {
+      // NOTE: at this stage it is known that the top bit is set
+      ret += 0x10000000000000 + (this.words[1] * 0x4000000);
+    } else if (this.length > 2) {
+      assert(false, 'Number can only safely store up to 53 bits');
+    }
+    return (this.negative !== 0) ? -ret : ret;
+  };
 
-  if (Array.isArray(sig)) {
-    sig = {
-      R: sig.slice(0, eddsa.encodingLength),
-      S: sig.slice(eddsa.encodingLength)
-    };
-  }
+  BN.prototype.toJSON = function toJSON () {
+    return this.toString(16);
+  };
 
-  assert(sig.R && sig.S, 'Signature without R or S');
+  BN.prototype.toBuffer = function toBuffer (endian, length) {
+    assert(typeof Buffer !== 'undefined');
+    return this.toArrayLike(Buffer, endian, length);
+  };
 
-  if (eddsa.isPoint(sig.R))
-    this._R = sig.R;
-  if (sig.S instanceof BN)
-    this._S = sig.S;
+  BN.prototype.toArray = function toArray (endian, length) {
+    return this.toArrayLike(Array, endian, length);
+  };
 
-  this._Rencoded = Array.isArray(sig.R) ? sig.R : sig.Rencoded;
-  this._Sencoded = Array.isArray(sig.S) ? sig.S : sig.Sencoded;
-}
+  BN.prototype.toArrayLike = function toArrayLike (ArrayType, endian, length) {
+    var byteLength = this.byteLength();
+    var reqLength = length || Math.max(1, byteLength);
+    assert(byteLength <= reqLength, 'byte array longer than desired length');
+    assert(reqLength > 0, 'Requested array length <= 0');
 
-cachedProperty(Signature, 'S', function S() {
-  return this.eddsa.decodeInt(this.Sencoded());
-});
+    this.strip();
+    var littleEndian = endian === 'le';
+    var res = new ArrayType(reqLength);
 
-cachedProperty(Signature, 'R', function R() {
-  return this.eddsa.decodePoint(this.Rencoded());
-});
+    var b, i;
+    var q = this.clone();
+    if (!littleEndian) {
+      // Assume big-endian
+      for (i = 0; i < reqLength - byteLength; i++) {
+        res[i] = 0;
+      }
 
-cachedProperty(Signature, 'Rencoded', function Rencoded() {
-  return this.eddsa.encodePoint(this.R());
-});
+      for (i = 0; !q.isZero(); i++) {
+        b = q.andln(0xff);
+        q.iushrn(8);
 
-cachedProperty(Signature, 'Sencoded', function Sencoded() {
-  return this.eddsa.encodeInt(this.S());
-});
+        res[reqLength - i - 1] = b;
+      }
+    } else {
+      for (i = 0; !q.isZero(); i++) {
+        b = q.andln(0xff);
+        q.iushrn(8);
 
-Signature.prototype.toBytes = function toBytes() {
-  return this.Rencoded().concat(this.Sencoded());
-};
+        res[i] = b;
+      }
 
-Signature.prototype.toHex = function toHex() {
-  return utils.encode(this.toBytes(), 'hex').toUpperCase();
-};
+      for (; i < reqLength; i++) {
+        res[i] = 0;
+      }
+    }
 
-module.exports = Signature;
-
-},{"../../elliptic":97,"bn.js":81}],110:[function(require,module,exports){
-module.exports = {
-  doubles: {
-    step: 4,
-    points: [
-      [
-        'e60fce93b59e9ec53011aabc21c23e97b2a31369b87a5ae9c44ee89e2a6dec0a',
-        'f7e3507399e595929db99f34f57937101296891e44d23f0be1f32cce69616821'
-      ],
-      [
-        '8282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508',
-        '11f8a8098557dfe45e8256e830b60ace62d613ac2f7b17bed31b6eaff6e26caf'
-      ],
-      [
-        '175e159f728b865a72f99cc6c6fc846de0b93833fd2222ed73fce5b551e5b739',
-        'd3506e0d9e3c79eba4ef97a51ff71f5eacb5955add24345c6efa6ffee9fed695'
-      ],
-      [
-        '363d90d447b00c9c99ceac05b6262ee053441c7e55552ffe526bad8f83ff4640',
-        '4e273adfc732221953b445397f3363145b9a89008199ecb62003c7f3bee9de9'
-      ],
-      [
-        '8b4b5f165df3c2be8c6244b5b745638843e4a781a15bcd1b69f79a55dffdf80c',
-        '4aad0a6f68d308b4b3fbd7813ab0da04f9e336546162ee56b3eff0c65fd4fd36'
-      ],
-      [
-        '723cbaa6e5db996d6bf771c00bd548c7b700dbffa6c0e77bcb6115925232fcda',
-        '96e867b5595cc498a921137488824d6e2660a0653779494801dc069d9eb39f5f'
-      ],
-      [
-        'eebfa4d493bebf98ba5feec812c2d3b50947961237a919839a533eca0e7dd7fa',
-        '5d9a8ca3970ef0f269ee7edaf178089d9ae4cdc3a711f712ddfd4fdae1de8999'
-      ],
-      [
-        '100f44da696e71672791d0a09b7bde459f1215a29b3c03bfefd7835b39a48db0',
-        'cdd9e13192a00b772ec8f3300c090666b7ff4a18ff5195ac0fbd5cd62bc65a09'
-      ],
-      [
-        'e1031be262c7ed1b1dc9227a4a04c017a77f8d4464f3b3852c8acde6e534fd2d',
-        '9d7061928940405e6bb6a4176597535af292dd419e1ced79a44f18f29456a00d'
-      ],
-      [
-        'feea6cae46d55b530ac2839f143bd7ec5cf8b266a41d6af52d5e688d9094696d',
-        'e57c6b6c97dce1bab06e4e12bf3ecd5c981c8957cc41442d3155debf18090088'
-      ],
-      [
-        'da67a91d91049cdcb367be4be6ffca3cfeed657d808583de33fa978bc1ec6cb1',
-        '9bacaa35481642bc41f463f7ec9780e5dec7adc508f740a17e9ea8e27a68be1d'
-      ],
-      [
-        '53904faa0b334cdda6e000935ef22151ec08d0f7bb11069f57545ccc1a37b7c0',
-        '5bc087d0bc80106d88c9eccac20d3c1c13999981e14434699dcb096b022771c8'
-      ],
-      [
-        '8e7bcd0bd35983a7719cca7764ca906779b53a043a9b8bcaeff959f43ad86047',
-        '10b7770b2a3da4b3940310420ca9514579e88e2e47fd68b3ea10047e8460372a'
-      ],
-      [
-        '385eed34c1cdff21e6d0818689b81bde71a7f4f18397e6690a841e1599c43862',
-        '283bebc3e8ea23f56701de19e9ebf4576b304eec2086dc8cc0458fe5542e5453'
-      ],
-      [
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-        '7c80c68e603059ba69b8e2a30e45c4d47ea4dd2f5c281002d86890603a842160'
-      ],
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-      ],
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-      ],
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-      ],
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-        '4571534baa94d3b5f9f98d09fb990bddbd5f5b03ec481f10e0e5dc841d755bda'
-      ],
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-      ],
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-      ],
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-      ]
-    ]
-  },
-  naf: {
-    wnd: 7,
-    points: [
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-      ]
-    ]
-  }
-};
-
-},{}],111:[function(require,module,exports){
-'use strict';
-
-var utils = exports;
-var BN = require('bn.js');
-var minAssert = require('minimalistic-assert');
-var minUtils = require('minimalistic-crypto-utils');
-
-utils.assert = minAssert;
-utils.toArray = minUtils.toArray;
-utils.zero2 = minUtils.zero2;
-utils.toHex = minUtils.toHex;
-utils.encode = minUtils.encode;
-
-// Represent num in a w-NAF form
-function getNAF(num, w) {
-  var naf = [];
-  var ws = 1 << (w + 1);
-  var k = num.clone();
-  while (k.cmpn(1) >= 0) {
-    var z;
-    if (k.isOdd()) {
-      var mod = k.andln(ws - 1);
-      if (mod > (ws >> 1) - 1)
-        z = (ws >> 1) - mod;
-      else
-        z = mod;
-      k.isubn(z);
-    } else {
-      z = 0;
-    }
-    naf.push(z);
-
-    // Optimization, shift by word if possible
-    var shift = (k.cmpn(0) !== 0 && k.andln(ws - 1) === 0) ? (w + 1) : 1;
-    for (var i = 1; i < shift; i++)
-      naf.push(0);
-    k.iushrn(shift);
-  }
-
-  return naf;
-}
-utils.getNAF = getNAF;
-
-// Represent k1, k2 in a Joint Sparse Form
-function getJSF(k1, k2) {
-  var jsf = [
-    [],
-    []
-  ];
-
-  k1 = k1.clone();
-  k2 = k2.clone();
-  var d1 = 0;
-  var d2 = 0;
-  while (k1.cmpn(-d1) > 0 || k2.cmpn(-d2) > 0) {
-
-    // First phase
-    var m14 = (k1.andln(3) + d1) & 3;
-    var m24 = (k2.andln(3) + d2) & 3;
-    if (m14 === 3)
-      m14 = -1;
-    if (m24 === 3)
-      m24 = -1;
-    var u1;
-    if ((m14 & 1) === 0) {
-      u1 = 0;
-    } else {
-      var m8 = (k1.andln(7) + d1) & 7;
-      if ((m8 === 3 || m8 === 5) && m24 === 2)
-        u1 = -m14;
-      else
-        u1 = m14;
-    }
-    jsf[0].push(u1);
-
-    var u2;
-    if ((m24 & 1) === 0) {
-      u2 = 0;
-    } else {
-      var m8 = (k2.andln(7) + d2) & 7;
-      if ((m8 === 3 || m8 === 5) && m14 === 2)
-        u2 = -m24;
-      else
-        u2 = m24;
-    }
-    jsf[1].push(u2);
-
-    // Second phase
-    if (2 * d1 === u1 + 1)
-      d1 = 1 - d1;
-    if (2 * d2 === u2 + 1)
-      d2 = 1 - d2;
-    k1.iushrn(1);
-    k2.iushrn(1);
-  }
-
-  return jsf;
-}
-utils.getJSF = getJSF;
-
-function cachedProperty(obj, name, computer) {
-  var key = '_' + name;
-  obj.prototype[name] = function cachedProperty() {
-    return this[key] !== undefined ? this[key] :
-           this[key] = computer.call(this);
-  };
-}
-utils.cachedProperty = cachedProperty;
-
-function parseBytes(bytes) {
-  return typeof bytes === 'string' ? utils.toArray(bytes, 'hex') :
-                                     bytes;
-}
-utils.parseBytes = parseBytes;
-
-function intFromLE(bytes) {
-  return new BN(bytes, 'hex', 'le');
-}
-utils.intFromLE = intFromLE;
-
-
-},{"bn.js":81,"minimalistic-assert":123,"minimalistic-crypto-utils":124}],112:[function(require,module,exports){
-module.exports={
-  "_args": [
-    [
-      "elliptic",
-      "/home/ian/git/bitcoin/bitcoinjs-lib-browser"
-    ]
-  ],
-  "_from": "elliptic@latest",
-  "_id": "elliptic@6.4.0",
-  "_inCache": true,
-  "_installable": true,
-  "_location": "/elliptic",
-  "_nodeVersion": "7.0.0",
-  "_npmOperationalInternal": {
-    "host": "packages-18-east.internal.npmjs.com",
-    "tmp": "tmp/elliptic-6.4.0.tgz_1487798866428_0.30510620190761983"
-  },
-  "_npmUser": {
-    "email": "fedor@indutny.com",
-    "name": "indutny"
-  },
-  "_npmVersion": "3.10.8",
-  "_phantomChildren": {},
-  "_requested": {
-    "name": "elliptic",
-    "raw": "elliptic",
-    "rawSpec": "",
-    "scope": null,
-    "spec": "latest",
-    "type": "tag"
-  },
-  "_requiredBy": [
-    "#USER"
-  ],
-  "_resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.4.0.tgz",
-  "_shasum": "cac9af8762c85836187003c8dfe193e5e2eae5df",
-  "_shrinkwrap": null,
-  "_spec": "elliptic",
-  "_where": "/home/ian/git/bitcoin/bitcoinjs-lib-browser",
-  "author": {
-    "email": "fedor@indutny.com",
-    "name": "Fedor Indutny"
-  },
-  "bugs": {
-    "url": "https://github.com/indutny/elliptic/issues"
-  },
-  "dependencies": {
-    "bn.js": "^4.4.0",
-    "brorand": "^1.0.1",
-    "hash.js": "^1.0.0",
-    "hmac-drbg": "^1.0.0",
-    "inherits": "^2.0.1",
-    "minimalistic-assert": "^1.0.0",
-    "minimalistic-crypto-utils": "^1.0.0"
-  },
-  "description": "EC cryptography",
-  "devDependencies": {
-    "brfs": "^1.4.3",
-    "coveralls": "^2.11.3",
-    "grunt": "^0.4.5",
-    "grunt-browserify": "^5.0.0",
-    "grunt-cli": "^1.2.0",
-    "grunt-contrib-connect": "^1.0.0",
-    "grunt-contrib-copy": "^1.0.0",
-    "grunt-contrib-uglify": "^1.0.1",
-    "grunt-mocha-istanbul": "^3.0.1",
-    "grunt-saucelabs": "^8.6.2",
-    "istanbul": "^0.4.2",
-    "jscs": "^2.9.0",
-    "jshint": "^2.6.0",
-    "mocha": "^2.1.0"
-  },
-  "directories": {},
-  "dist": {
-    "shasum": "cac9af8762c85836187003c8dfe193e5e2eae5df",
-    "tarball": "https://registry.npmjs.org/elliptic/-/elliptic-6.4.0.tgz"
-  },
-  "files": [
-    "lib"
-  ],
-  "gitHead": "6b0d2b76caae91471649c8e21f0b1d3ba0f96090",
-  "homepage": "https://github.com/indutny/elliptic",
-  "keywords": [
-    "EC",
-    "Elliptic",
-    "curve",
-    "Cryptography"
-  ],
-  "license": "MIT",
-  "main": "lib/elliptic.js",
-  "maintainers": [
-    {
-      "email": "fedor@indutny.com",
-      "name": "indutny"
-    }
-  ],
-  "name": "elliptic",
-  "optionalDependencies": {},
-  "readme": "ERROR: No README data found!",
-  "repository": {
-    "type": "git",
-    "url": "git+ssh://git@github.com/indutny/elliptic.git"
-  },
-  "scripts": {
-    "jscs": "jscs benchmarks/*.js lib/*.js lib/**/*.js lib/**/**/*.js test/index.js",
-    "jshint": "jscs benchmarks/*.js lib/*.js lib/**/*.js lib/**/**/*.js test/index.js",
-    "lint": "npm run jscs && npm run jshint",
-    "test": "npm run lint && npm run unit",
-    "unit": "istanbul test _mocha --reporter=spec test/index.js",
-    "version": "grunt dist && git add dist/"
-  },
-  "version": "6.4.0"
-}
-
-},{}],113:[function(require,module,exports){
-(function (Buffer){
-'use strict'
-var Transform = require('stream').Transform
-var inherits = require('inherits')
-
-function HashBase (blockSize) {
-  Transform.call(this)
-
-  this._block = new Buffer(blockSize)
-  this._blockSize = blockSize
-  this._blockOffset = 0
-  this._length = [0, 0, 0, 0]
-
-  this._finalized = false
-}
-
-inherits(HashBase, Transform)
-
-HashBase.prototype._transform = function (chunk, encoding, callback) {
-  var error = null
-  try {
-    if (encoding !== 'buffer') chunk = new Buffer(chunk, encoding)
-    this.update(chunk)
-  } catch (err) {
-    error = err
-  }
-
-  callback(error)
-}
-
-HashBase.prototype._flush = function (callback) {
-  var error = null
-  try {
-    this.push(this._digest())
-  } catch (err) {
-    error = err
-  }
-
-  callback(error)
-}
-
-HashBase.prototype.update = function (data, encoding) {
-  if (!Buffer.isBuffer(data) && typeof data !== 'string') throw new TypeError('Data must be a string or a buffer')
-  if (this._finalized) throw new Error('Digest already called')
-  if (!Buffer.isBuffer(data)) data = new Buffer(data, encoding || 'binary')
-
-  // consume data
-  var block = this._block
-  var offset = 0
-  while (this._blockOffset + data.length - offset >= this._blockSize) {
-    for (var i = this._blockOffset; i < this._blockSize;) block[i++] = data[offset++]
-    this._update()
-    this._blockOffset = 0
-  }
-  while (offset < data.length) block[this._blockOffset++] = data[offset++]
-
-  // update length
-  for (var j = 0, carry = data.length * 8; carry > 0; ++j) {
-    this._length[j] += carry
-    carry = (this._length[j] / 0x0100000000) | 0
-    if (carry > 0) this._length[j] -= 0x0100000000 * carry
-  }
-
-  return this
-}
-
-HashBase.prototype._update = function (data) {
-  throw new Error('_update is not implemented')
-}
-
-HashBase.prototype.digest = function (encoding) {
-  if (this._finalized) throw new Error('Digest already called')
-  this._finalized = true
-
-  var digest = this._digest()
-  if (encoding !== undefined) digest = digest.toString(encoding)
-  return digest
-}
-
-HashBase.prototype._digest = function () {
-  throw new Error('_digest is not implemented')
-}
-
-module.exports = HashBase
-
-}).call(this,require("buffer").Buffer)
-},{"buffer":5,"inherits":121,"stream":28}],114:[function(require,module,exports){
-var hash = exports;
-
-hash.utils = require('./hash/utils');
-hash.common = require('./hash/common');
-hash.sha = require('./hash/sha');
-hash.ripemd = require('./hash/ripemd');
-hash.hmac = require('./hash/hmac');
-
-// Proxy hash functions to the main object
-hash.sha1 = hash.sha.sha1;
-hash.sha256 = hash.sha.sha256;
-hash.sha224 = hash.sha.sha224;
-hash.sha384 = hash.sha.sha384;
-hash.sha512 = hash.sha.sha512;
-hash.ripemd160 = hash.ripemd.ripemd160;
-
-},{"./hash/common":115,"./hash/hmac":116,"./hash/ripemd":117,"./hash/sha":118,"./hash/utils":119}],115:[function(require,module,exports){
-var hash = require('../hash');
-var utils = hash.utils;
-var assert = utils.assert;
-
-function BlockHash() {
-  this.pending = null;
-  this.pendingTotal = 0;
-  this.blockSize = this.constructor.blockSize;
-  this.outSize = this.constructor.outSize;
-  this.hmacStrength = this.constructor.hmacStrength;
-  this.padLength = this.constructor.padLength / 8;
-  this.endian = 'big';
-
-  this._delta8 = this.blockSize / 8;
-  this._delta32 = this.blockSize / 32;
-}
-exports.BlockHash = BlockHash;
-
-BlockHash.prototype.update = function update(msg, enc) {
-  // Convert message to array, pad it, and join into 32bit blocks
-  msg = utils.toArray(msg, enc);
-  if (!this.pending)
-    this.pending = msg;
-  else
-    this.pending = this.pending.concat(msg);
-  this.pendingTotal += msg.length;
-
-  // Enough data, try updating
-  if (this.pending.length >= this._delta8) {
-    msg = this.pending;
-
-    // Process pending data in blocks
-    var r = msg.length % this._delta8;
-    this.pending = msg.slice(msg.length - r, msg.length);
-    if (this.pending.length === 0)
-      this.pending = null;
-
-    msg = utils.join32(msg, 0, msg.length - r, this.endian);
-    for (var i = 0; i < msg.length; i += this._delta32)
-      this._update(msg, i, i + this._delta32);
-  }
-
-  return this;
-};
-
-BlockHash.prototype.digest = function digest(enc) {
-  this.update(this._pad());
-  assert(this.pending === null);
-
-  return this._digest(enc);
-};
-
-BlockHash.prototype._pad = function pad() {
-  var len = this.pendingTotal;
-  var bytes = this._delta8;
-  var k = bytes - ((len + this.padLength) % bytes);
-  var res = new Array(k + this.padLength);
-  res[0] = 0x80;
-  for (var i = 1; i < k; i++)
-    res[i] = 0;
-
-  // Append length
-  len <<= 3;
-  if (this.endian === 'big') {
-    for (var t = 8; t < this.padLength; t++)
-      res[i++] = 0;
-
-    res[i++] = 0;
-    res[i++] = 0;
-    res[i++] = 0;
-    res[i++] = 0;
-    res[i++] = (len >>> 24) & 0xff;
-    res[i++] = (len >>> 16) & 0xff;
-    res[i++] = (len >>> 8) & 0xff;
-    res[i++] = len & 0xff;
-  } else {
-    res[i++] = len & 0xff;
-    res[i++] = (len >>> 8) & 0xff;
-    res[i++] = (len >>> 16) & 0xff;
-    res[i++] = (len >>> 24) & 0xff;
-    res[i++] = 0;
-    res[i++] = 0;
-    res[i++] = 0;
-    res[i++] = 0;
-
-    for (var t = 8; t < this.padLength; t++)
-      res[i++] = 0;
-  }
-
-  return res;
-};
-
-},{"../hash":114}],116:[function(require,module,exports){
-var hmac = exports;
-
-var hash = require('../hash');
-var utils = hash.utils;
-var assert = utils.assert;
-
-function Hmac(hash, key, enc) {
-  if (!(this instanceof Hmac))
-    return new Hmac(hash, key, enc);
-  this.Hash = hash;
-  this.blockSize = hash.blockSize / 8;
-  this.outSize = hash.outSize / 8;
-  this.inner = null;
-  this.outer = null;
-
-  this._init(utils.toArray(key, enc));
-}
-module.exports = Hmac;
-
-Hmac.prototype._init = function init(key) {
-  // Shorten key, if needed
-  if (key.length > this.blockSize)
-    key = new this.Hash().update(key).digest();
-  assert(key.length <= this.blockSize);
-
-  // Add padding to key
-  for (var i = key.length; i < this.blockSize; i++)
-    key.push(0);
-
-  for (var i = 0; i < key.length; i++)
-    key[i] ^= 0x36;
-  this.inner = new this.Hash().update(key);
-
-  // 0x36 ^ 0x5c = 0x6a
-  for (var i = 0; i < key.length; i++)
-    key[i] ^= 0x6a;
-  this.outer = new this.Hash().update(key);
-};
-
-Hmac.prototype.update = function update(msg, enc) {
-  this.inner.update(msg, enc);
-  return this;
-};
-
-Hmac.prototype.digest = function digest(enc) {
-  this.outer.update(this.inner.digest());
-  return this.outer.digest(enc);
-};
-
-},{"../hash":114}],117:[function(require,module,exports){
-var hash = require('../hash');
-var utils = hash.utils;
-
-var rotl32 = utils.rotl32;
-var sum32 = utils.sum32;
-var sum32_3 = utils.sum32_3;
-var sum32_4 = utils.sum32_4;
-var BlockHash = hash.common.BlockHash;
-
-function RIPEMD160() {
-  if (!(this instanceof RIPEMD160))
-    return new RIPEMD160();
-
-  BlockHash.call(this);
-
-  this.h = [ 0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0 ];
-  this.endian = 'little';
-}
-utils.inherits(RIPEMD160, BlockHash);
-exports.ripemd160 = RIPEMD160;
-
-RIPEMD160.blockSize = 512;
-RIPEMD160.outSize = 160;
-RIPEMD160.hmacStrength = 192;
-RIPEMD160.padLength = 64;
-
-RIPEMD160.prototype._update = function update(msg, start) {
-  var A = this.h[0];
-  var B = this.h[1];
-  var C = this.h[2];
-  var D = this.h[3];
-  var E = this.h[4];
-  var Ah = A;
-  var Bh = B;
-  var Ch = C;
-  var Dh = D;
-  var Eh = E;
-  for (var j = 0; j < 80; j++) {
-    var T = sum32(
-      rotl32(
-        sum32_4(A, f(j, B, C, D), msg[r[j] + start], K(j)),
-        s[j]),
-      E);
-    A = E;
-    E = D;
-    D = rotl32(C, 10);
-    C = B;
-    B = T;
-    T = sum32(
-      rotl32(
-        sum32_4(Ah, f(79 - j, Bh, Ch, Dh), msg[rh[j] + start], Kh(j)),
-        sh[j]),
-      Eh);
-    Ah = Eh;
-    Eh = Dh;
-    Dh = rotl32(Ch, 10);
-    Ch = Bh;
-    Bh = T;
-  }
-  T = sum32_3(this.h[1], C, Dh);
-  this.h[1] = sum32_3(this.h[2], D, Eh);
-  this.h[2] = sum32_3(this.h[3], E, Ah);
-  this.h[3] = sum32_3(this.h[4], A, Bh);
-  this.h[4] = sum32_3(this.h[0], B, Ch);
-  this.h[0] = T;
-};
-
-RIPEMD160.prototype._digest = function digest(enc) {
-  if (enc === 'hex')
-    return utils.toHex32(this.h, 'little');
-  else
-    return utils.split32(this.h, 'little');
-};
-
-function f(j, x, y, z) {
-  if (j <= 15)
-    return x ^ y ^ z;
-  else if (j <= 31)
-    return (x & y) | ((~x) & z);
-  else if (j <= 47)
-    return (x | (~y)) ^ z;
-  else if (j <= 63)
-    return (x & z) | (y & (~z));
-  else
-    return x ^ (y | (~z));
-}
-
-function K(j) {
-  if (j <= 15)
-    return 0x00000000;
-  else if (j <= 31)
-    return 0x5a827999;
-  else if (j <= 47)
-    return 0x6ed9eba1;
-  else if (j <= 63)
-    return 0x8f1bbcdc;
-  else
-    return 0xa953fd4e;
-}
-
-function Kh(j) {
-  if (j <= 15)
-    return 0x50a28be6;
-  else if (j <= 31)
-    return 0x5c4dd124;
-  else if (j <= 47)
-    return 0x6d703ef3;
-  else if (j <= 63)
-    return 0x7a6d76e9;
-  else
-    return 0x00000000;
-}
-
-var r = [
-  0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
-  7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8,
-  3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12,
-  1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2,
-  4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13
-];
-
-var rh = [
-  5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12,
-  6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2,
-  15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13,
-  8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14,
-  12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11
-];
-
-var s = [
-  11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8,
-  7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12,
-  11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5,
-  11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12,
-  9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6
-];
-
-var sh = [
-  8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6,
-  9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11,
-  9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5,
-  15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8,
-  8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11
-];
-
-},{"../hash":114}],118:[function(require,module,exports){
-var hash = require('../hash');
-var utils = hash.utils;
-var assert = utils.assert;
-
-var rotr32 = utils.rotr32;
-var rotl32 = utils.rotl32;
-var sum32 = utils.sum32;
-var sum32_4 = utils.sum32_4;
-var sum32_5 = utils.sum32_5;
-var rotr64_hi = utils.rotr64_hi;
-var rotr64_lo = utils.rotr64_lo;
-var shr64_hi = utils.shr64_hi;
-var shr64_lo = utils.shr64_lo;
-var sum64 = utils.sum64;
-var sum64_hi = utils.sum64_hi;
-var sum64_lo = utils.sum64_lo;
-var sum64_4_hi = utils.sum64_4_hi;
-var sum64_4_lo = utils.sum64_4_lo;
-var sum64_5_hi = utils.sum64_5_hi;
-var sum64_5_lo = utils.sum64_5_lo;
-var BlockHash = hash.common.BlockHash;
-
-var sha256_K = [
-  0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
-  0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
-  0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
-  0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
-  0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
-  0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
-  0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
-  0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
-  0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
-  0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
-  0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
-  0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
-  0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
-  0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
-  0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
-  0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
-];
-
-var sha512_K = [
-  0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd,
-  0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc,
-  0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019,
-  0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118,
-  0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe,
-  0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2,
-  0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1,
-  0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694,
-  0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3,
-  0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65,
-  0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483,
-  0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5,
-  0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210,
-  0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4,
-  0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725,
-  0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70,
-  0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926,
-  0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df,
-  0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8,
-  0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b,
-  0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001,
-  0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30,
-  0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910,
-  0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8,
-  0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53,
-  0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8,
-  0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb,
-  0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3,
-  0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60,
-  0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec,
-  0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9,
-  0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b,
-  0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207,
-  0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178,
-  0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6,
-  0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b,
-  0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493,
-  0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c,
-  0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a,
-  0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817
-];
-
-var sha1_K = [
-  0x5A827999, 0x6ED9EBA1,
-  0x8F1BBCDC, 0xCA62C1D6
-];
-
-function SHA256() {
-  if (!(this instanceof SHA256))
-    return new SHA256();
-
-  BlockHash.call(this);
-  this.h = [ 0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a,
-             0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19 ];
-  this.k = sha256_K;
-  this.W = new Array(64);
-}
-utils.inherits(SHA256, BlockHash);
-exports.sha256 = SHA256;
-
-SHA256.blockSize = 512;
-SHA256.outSize = 256;
-SHA256.hmacStrength = 192;
-SHA256.padLength = 64;
-
-SHA256.prototype._update = function _update(msg, start) {
-  var W = this.W;
-
-  for (var i = 0; i < 16; i++)
-    W[i] = msg[start + i];
-  for (; i < W.length; i++)
-    W[i] = sum32_4(g1_256(W[i - 2]), W[i - 7], g0_256(W[i - 15]), W[i - 16]);
-
-  var a = this.h[0];
-  var b = this.h[1];
-  var c = this.h[2];
-  var d = this.h[3];
-  var e = this.h[4];
-  var f = this.h[5];
-  var g = this.h[6];
-  var h = this.h[7];
-
-  assert(this.k.length === W.length);
-  for (var i = 0; i < W.length; i++) {
-    var T1 = sum32_5(h, s1_256(e), ch32(e, f, g), this.k[i], W[i]);
-    var T2 = sum32(s0_256(a), maj32(a, b, c));
-    h = g;
-    g = f;
-    f = e;
-    e = sum32(d, T1);
-    d = c;
-    c = b;
-    b = a;
-    a = sum32(T1, T2);
-  }
-
-  this.h[0] = sum32(this.h[0], a);
-  this.h[1] = sum32(this.h[1], b);
-  this.h[2] = sum32(this.h[2], c);
-  this.h[3] = sum32(this.h[3], d);
-  this.h[4] = sum32(this.h[4], e);
-  this.h[5] = sum32(this.h[5], f);
-  this.h[6] = sum32(this.h[6], g);
-  this.h[7] = sum32(this.h[7], h);
-};
-
-SHA256.prototype._digest = function digest(enc) {
-  if (enc === 'hex')
-    return utils.toHex32(this.h, 'big');
-  else
-    return utils.split32(this.h, 'big');
-};
-
-function SHA224() {
-  if (!(this instanceof SHA224))
-    return new SHA224();
-
-  SHA256.call(this);
-  this.h = [ 0xc1059ed8, 0x367cd507, 0x3070dd17, 0xf70e5939,
-             0xffc00b31, 0x68581511, 0x64f98fa7, 0xbefa4fa4 ];
-}
-utils.inherits(SHA224, SHA256);
-exports.sha224 = SHA224;
-
-SHA224.blockSize = 512;
-SHA224.outSize = 224;
-SHA224.hmacStrength = 192;
-SHA224.padLength = 64;
-
-SHA224.prototype._digest = function digest(enc) {
-  // Just truncate output
-  if (enc === 'hex')
-    return utils.toHex32(this.h.slice(0, 7), 'big');
-  else
-    return utils.split32(this.h.slice(0, 7), 'big');
-};
-
-function SHA512() {
-  if (!(this instanceof SHA512))
-    return new SHA512();
-
-  BlockHash.call(this);
-  this.h = [ 0x6a09e667, 0xf3bcc908,
-             0xbb67ae85, 0x84caa73b,
-             0x3c6ef372, 0xfe94f82b,
-             0xa54ff53a, 0x5f1d36f1,
-             0x510e527f, 0xade682d1,
-             0x9b05688c, 0x2b3e6c1f,
-             0x1f83d9ab, 0xfb41bd6b,
-             0x5be0cd19, 0x137e2179 ];
-  this.k = sha512_K;
-  this.W = new Array(160);
-}
-utils.inherits(SHA512, BlockHash);
-exports.sha512 = SHA512;
-
-SHA512.blockSize = 1024;
-SHA512.outSize = 512;
-SHA512.hmacStrength = 192;
-SHA512.padLength = 128;
-
-SHA512.prototype._prepareBlock = function _prepareBlock(msg, start) {
-  var W = this.W;
-
-  // 32 x 32bit words
-  for (var i = 0; i < 32; i++)
-    W[i] = msg[start + i];
-  for (; i < W.length; i += 2) {
-    var c0_hi = g1_512_hi(W[i - 4], W[i - 3]);  // i - 2
-    var c0_lo = g1_512_lo(W[i - 4], W[i - 3]);
-    var c1_hi = W[i - 14];  // i - 7
-    var c1_lo = W[i - 13];
-    var c2_hi = g0_512_hi(W[i - 30], W[i - 29]);  // i - 15
-    var c2_lo = g0_512_lo(W[i - 30], W[i - 29]);
-    var c3_hi = W[i - 32];  // i - 16
-    var c3_lo = W[i - 31];
-
-    W[i] = sum64_4_hi(c0_hi, c0_lo,
-                      c1_hi, c1_lo,
-                      c2_hi, c2_lo,
-                      c3_hi, c3_lo);
-    W[i + 1] = sum64_4_lo(c0_hi, c0_lo,
-                          c1_hi, c1_lo,
-                          c2_hi, c2_lo,
-                          c3_hi, c3_lo);
-  }
-};
-
-SHA512.prototype._update = function _update(msg, start) {
-  this._prepareBlock(msg, start);
-
-  var W = this.W;
-
-  var ah = this.h[0];
-  var al = this.h[1];
-  var bh = this.h[2];
-  var bl = this.h[3];
-  var ch = this.h[4];
-  var cl = this.h[5];
-  var dh = this.h[6];
-  var dl = this.h[7];
-  var eh = this.h[8];
-  var el = this.h[9];
-  var fh = this.h[10];
-  var fl = this.h[11];
-  var gh = this.h[12];
-  var gl = this.h[13];
-  var hh = this.h[14];
-  var hl = this.h[15];
-
-  assert(this.k.length === W.length);
-  for (var i = 0; i < W.length; i += 2) {
-    var c0_hi = hh;
-    var c0_lo = hl;
-    var c1_hi = s1_512_hi(eh, el);
-    var c1_lo = s1_512_lo(eh, el);
-    var c2_hi = ch64_hi(eh, el, fh, fl, gh, gl);
-    var c2_lo = ch64_lo(eh, el, fh, fl, gh, gl);
-    var c3_hi = this.k[i];
-    var c3_lo = this.k[i + 1];
-    var c4_hi = W[i];
-    var c4_lo = W[i + 1];
-
-    var T1_hi = sum64_5_hi(c0_hi, c0_lo,
-                           c1_hi, c1_lo,
-                           c2_hi, c2_lo,
-                           c3_hi, c3_lo,
-                           c4_hi, c4_lo);
-    var T1_lo = sum64_5_lo(c0_hi, c0_lo,
-                           c1_hi, c1_lo,
-                           c2_hi, c2_lo,
-                           c3_hi, c3_lo,
-                           c4_hi, c4_lo);
-
-    var c0_hi = s0_512_hi(ah, al);
-    var c0_lo = s0_512_lo(ah, al);
-    var c1_hi = maj64_hi(ah, al, bh, bl, ch, cl);
-    var c1_lo = maj64_lo(ah, al, bh, bl, ch, cl);
-
-    var T2_hi = sum64_hi(c0_hi, c0_lo, c1_hi, c1_lo);
-    var T2_lo = sum64_lo(c0_hi, c0_lo, c1_hi, c1_lo);
-
-    hh = gh;
-    hl = gl;
-
-    gh = fh;
-    gl = fl;
-
-    fh = eh;
-    fl = el;
-
-    eh = sum64_hi(dh, dl, T1_hi, T1_lo);
-    el = sum64_lo(dl, dl, T1_hi, T1_lo);
-
-    dh = ch;
-    dl = cl;
-
-    ch = bh;
-    cl = bl;
-
-    bh = ah;
-    bl = al;
-
-    ah = sum64_hi(T1_hi, T1_lo, T2_hi, T2_lo);
-    al = sum64_lo(T1_hi, T1_lo, T2_hi, T2_lo);
-  }
-
-  sum64(this.h, 0, ah, al);
-  sum64(this.h, 2, bh, bl);
-  sum64(this.h, 4, ch, cl);
-  sum64(this.h, 6, dh, dl);
-  sum64(this.h, 8, eh, el);
-  sum64(this.h, 10, fh, fl);
-  sum64(this.h, 12, gh, gl);
-  sum64(this.h, 14, hh, hl);
-};
-
-SHA512.prototype._digest = function digest(enc) {
-  if (enc === 'hex')
-    return utils.toHex32(this.h, 'big');
-  else
-    return utils.split32(this.h, 'big');
-};
-
-function SHA384() {
-  if (!(this instanceof SHA384))
-    return new SHA384();
-
-  SHA512.call(this);
-  this.h = [ 0xcbbb9d5d, 0xc1059ed8,
-             0x629a292a, 0x367cd507,
-             0x9159015a, 0x3070dd17,
-             0x152fecd8, 0xf70e5939,
-             0x67332667, 0xffc00b31,
-             0x8eb44a87, 0x68581511,
-             0xdb0c2e0d, 0x64f98fa7,
-             0x47b5481d, 0xbefa4fa4 ];
-}
-utils.inherits(SHA384, SHA512);
-exports.sha384 = SHA384;
-
-SHA384.blockSize = 1024;
-SHA384.outSize = 384;
-SHA384.hmacStrength = 192;
-SHA384.padLength = 128;
-
-SHA384.prototype._digest = function digest(enc) {
-  if (enc === 'hex')
-    return utils.toHex32(this.h.slice(0, 12), 'big');
-  else
-    return utils.split32(this.h.slice(0, 12), 'big');
-};
-
-function SHA1() {
-  if (!(this instanceof SHA1))
-    return new SHA1();
-
-  BlockHash.call(this);
-  this.h = [ 0x67452301, 0xefcdab89, 0x98badcfe,
-             0x10325476, 0xc3d2e1f0 ];
-  this.W = new Array(80);
-}
-
-utils.inherits(SHA1, BlockHash);
-exports.sha1 = SHA1;
-
-SHA1.blockSize = 512;
-SHA1.outSize = 160;
-SHA1.hmacStrength = 80;
-SHA1.padLength = 64;
-
-SHA1.prototype._update = function _update(msg, start) {
-  var W = this.W;
-
-  for (var i = 0; i < 16; i++)
-    W[i] = msg[start + i];
-
-  for(; i < W.length; i++)
-    W[i] = rotl32(W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16], 1);
-
-  var a = this.h[0];
-  var b = this.h[1];
-  var c = this.h[2];
-  var d = this.h[3];
-  var e = this.h[4];
-
-  for (var i = 0; i < W.length; i++) {
-    var s = ~~(i / 20);
-    var t = sum32_5(rotl32(a, 5), ft_1(s, b, c, d), e, W[i], sha1_K[s]);
-    e = d;
-    d = c;
-    c = rotl32(b, 30);
-    b = a;
-    a = t;
-  }
-
-  this.h[0] = sum32(this.h[0], a);
-  this.h[1] = sum32(this.h[1], b);
-  this.h[2] = sum32(this.h[2], c);
-  this.h[3] = sum32(this.h[3], d);
-  this.h[4] = sum32(this.h[4], e);
-};
-
-SHA1.prototype._digest = function digest(enc) {
-  if (enc === 'hex')
-    return utils.toHex32(this.h, 'big');
-  else
-    return utils.split32(this.h, 'big');
-};
-
-function ch32(x, y, z) {
-  return (x & y) ^ ((~x) & z);
-}
-
-function maj32(x, y, z) {
-  return (x & y) ^ (x & z) ^ (y & z);
-}
-
-function p32(x, y, z) {
-  return x ^ y ^ z;
-}
-
-function s0_256(x) {
-  return rotr32(x, 2) ^ rotr32(x, 13) ^ rotr32(x, 22);
-}
-
-function s1_256(x) {
-  return rotr32(x, 6) ^ rotr32(x, 11) ^ rotr32(x, 25);
-}
-
-function g0_256(x) {
-  return rotr32(x, 7) ^ rotr32(x, 18) ^ (x >>> 3);
-}
-
-function g1_256(x) {
-  return rotr32(x, 17) ^ rotr32(x, 19) ^ (x >>> 10);
-}
-
-function ft_1(s, x, y, z) {
-  if (s === 0)
-    return ch32(x, y, z);
-  if (s === 1 || s === 3)
-    return p32(x, y, z);
-  if (s === 2)
-    return maj32(x, y, z);
-}
-
-function ch64_hi(xh, xl, yh, yl, zh, zl) {
-  var r = (xh & yh) ^ ((~xh) & zh);
-  if (r < 0)
-    r += 0x100000000;
-  return r;
-}
-
-function ch64_lo(xh, xl, yh, yl, zh, zl) {
-  var r = (xl & yl) ^ ((~xl) & zl);
-  if (r < 0)
-    r += 0x100000000;
-  return r;
-}
-
-function maj64_hi(xh, xl, yh, yl, zh, zl) {
-  var r = (xh & yh) ^ (xh & zh) ^ (yh & zh);
-  if (r < 0)
-    r += 0x100000000;
-  return r;
-}
-
-function maj64_lo(xh, xl, yh, yl, zh, zl) {
-  var r = (xl & yl) ^ (xl & zl) ^ (yl & zl);
-  if (r < 0)
-    r += 0x100000000;
-  return r;
-}
-
-function s0_512_hi(xh, xl) {
-  var c0_hi = rotr64_hi(xh, xl, 28);
-  var c1_hi = rotr64_hi(xl, xh, 2);  // 34
-  var c2_hi = rotr64_hi(xl, xh, 7);  // 39
-
-  var r = c0_hi ^ c1_hi ^ c2_hi;
-  if (r < 0)
-    r += 0x100000000;
-  return r;
-}
-
-function s0_512_lo(xh, xl) {
-  var c0_lo = rotr64_lo(xh, xl, 28);
-  var c1_lo = rotr64_lo(xl, xh, 2);  // 34
-  var c2_lo = rotr64_lo(xl, xh, 7);  // 39
-
-  var r = c0_lo ^ c1_lo ^ c2_lo;
-  if (r < 0)
-    r += 0x100000000;
-  return r;
-}
-
-function s1_512_hi(xh, xl) {
-  var c0_hi = rotr64_hi(xh, xl, 14);
-  var c1_hi = rotr64_hi(xh, xl, 18);
-  var c2_hi = rotr64_hi(xl, xh, 9);  // 41
-
-  var r = c0_hi ^ c1_hi ^ c2_hi;
-  if (r < 0)
-    r += 0x100000000;
-  return r;
-}
-
-function s1_512_lo(xh, xl) {
-  var c0_lo = rotr64_lo(xh, xl, 14);
-  var c1_lo = rotr64_lo(xh, xl, 18);
-  var c2_lo = rotr64_lo(xl, xh, 9);  // 41
-
-  var r = c0_lo ^ c1_lo ^ c2_lo;
-  if (r < 0)
-    r += 0x100000000;
-  return r;
-}
-
-function g0_512_hi(xh, xl) {
-  var c0_hi = rotr64_hi(xh, xl, 1);
-  var c1_hi = rotr64_hi(xh, xl, 8);
-  var c2_hi = shr64_hi(xh, xl, 7);
-
-  var r = c0_hi ^ c1_hi ^ c2_hi;
-  if (r < 0)
-    r += 0x100000000;
-  return r;
-}
-
-function g0_512_lo(xh, xl) {
-  var c0_lo = rotr64_lo(xh, xl, 1);
-  var c1_lo = rotr64_lo(xh, xl, 8);
-  var c2_lo = shr64_lo(xh, xl, 7);
-
-  var r = c0_lo ^ c1_lo ^ c2_lo;
-  if (r < 0)
-    r += 0x100000000;
-  return r;
-}
-
-function g1_512_hi(xh, xl) {
-  var c0_hi = rotr64_hi(xh, xl, 19);
-  var c1_hi = rotr64_hi(xl, xh, 29);  // 61
-  var c2_hi = shr64_hi(xh, xl, 6);
-
-  var r = c0_hi ^ c1_hi ^ c2_hi;
-  if (r < 0)
-    r += 0x100000000;
-  return r;
-}
-
-function g1_512_lo(xh, xl) {
-  var c0_lo = rotr64_lo(xh, xl, 19);
-  var c1_lo = rotr64_lo(xl, xh, 29);  // 61
-  var c2_lo = shr64_lo(xh, xl, 6);
-
-  var r = c0_lo ^ c1_lo ^ c2_lo;
-  if (r < 0)
-    r += 0x100000000;
-  return r;
-}
-
-},{"../hash":114}],119:[function(require,module,exports){
-var utils = exports;
-var inherits = require('inherits');
-
-function toArray(msg, enc) {
-  if (Array.isArray(msg))
-    return msg.slice();
-  if (!msg)
-    return [];
-  var res = [];
-  if (typeof msg === 'string') {
-    if (!enc) {
-      for (var i = 0; i < msg.length; i++) {
-        var c = msg.charCodeAt(i);
-        var hi = c >> 8;
-        var lo = c & 0xff;
-        if (hi)
-          res.push(hi, lo);
-        else
-          res.push(lo);
-      }
-    } else if (enc === 'hex') {
-      msg = msg.replace(/[^a-z0-9]+/ig, '');
-      if (msg.length % 2 !== 0)
-        msg = '0' + msg;
-      for (var i = 0; i < msg.length; i += 2)
-        res.push(parseInt(msg[i] + msg[i + 1], 16));
-    }
-  } else {
-    for (var i = 0; i < msg.length; i++)
-      res[i] = msg[i] | 0;
-  }
-  return res;
-}
-utils.toArray = toArray;
-
-function toHex(msg) {
-  var res = '';
-  for (var i = 0; i < msg.length; i++)
-    res += zero2(msg[i].toString(16));
-  return res;
-}
-utils.toHex = toHex;
-
-function htonl(w) {
-  var res = (w >>> 24) |
-            ((w >>> 8) & 0xff00) |
-            ((w << 8) & 0xff0000) |
-            ((w & 0xff) << 24);
-  return res >>> 0;
-}
-utils.htonl = htonl;
-
-function toHex32(msg, endian) {
-  var res = '';
-  for (var i = 0; i < msg.length; i++) {
-    var w = msg[i];
-    if (endian === 'little')
-      w = htonl(w);
-    res += zero8(w.toString(16));
-  }
-  return res;
-}
-utils.toHex32 = toHex32;
-
-function zero2(word) {
-  if (word.length === 1)
-    return '0' + word;
-  else
-    return word;
-}
-utils.zero2 = zero2;
-
-function zero8(word) {
-  if (word.length === 7)
-    return '0' + word;
-  else if (word.length === 6)
-    return '00' + word;
-  else if (word.length === 5)
-    return '000' + word;
-  else if (word.length === 4)
-    return '0000' + word;
-  else if (word.length === 3)
-    return '00000' + word;
-  else if (word.length === 2)
-    return '000000' + word;
-  else if (word.length === 1)
-    return '0000000' + word;
-  else
-    return word;
-}
-utils.zero8 = zero8;
-
-function join32(msg, start, end, endian) {
-  var len = end - start;
-  assert(len % 4 === 0);
-  var res = new Array(len / 4);
-  for (var i = 0, k = start; i < res.length; i++, k += 4) {
-    var w;
-    if (endian === 'big')
-      w = (msg[k] << 24) | (msg[k + 1] << 16) | (msg[k + 2] << 8) | msg[k + 3];
-    else
-      w = (msg[k + 3] << 24) | (msg[k + 2] << 16) | (msg[k + 1] << 8) | msg[k];
-    res[i] = w >>> 0;
-  }
-  return res;
-}
-utils.join32 = join32;
-
-function split32(msg, endian) {
-  var res = new Array(msg.length * 4);
-  for (var i = 0, k = 0; i < msg.length; i++, k += 4) {
-    var m = msg[i];
-    if (endian === 'big') {
-      res[k] = m >>> 24;
-      res[k + 1] = (m >>> 16) & 0xff;
-      res[k + 2] = (m >>> 8) & 0xff;
-      res[k + 3] = m & 0xff;
-    } else {
-      res[k + 3] = m >>> 24;
-      res[k + 2] = (m >>> 16) & 0xff;
-      res[k + 1] = (m >>> 8) & 0xff;
-      res[k] = m & 0xff;
-    }
-  }
-  return res;
-}
-utils.split32 = split32;
-
-function rotr32(w, b) {
-  return (w >>> b) | (w << (32 - b));
-}
-utils.rotr32 = rotr32;
-
-function rotl32(w, b) {
-  return (w << b) | (w >>> (32 - b));
-}
-utils.rotl32 = rotl32;
-
-function sum32(a, b) {
-  return (a + b) >>> 0;
-}
-utils.sum32 = sum32;
-
-function sum32_3(a, b, c) {
-  return (a + b + c) >>> 0;
-}
-utils.sum32_3 = sum32_3;
-
-function sum32_4(a, b, c, d) {
-  return (a + b + c + d) >>> 0;
-}
-utils.sum32_4 = sum32_4;
-
-function sum32_5(a, b, c, d, e) {
-  return (a + b + c + d + e) >>> 0;
-}
-utils.sum32_5 = sum32_5;
-
-function assert(cond, msg) {
-  if (!cond)
-    throw new Error(msg || 'Assertion failed');
-}
-utils.assert = assert;
-
-utils.inherits = inherits;
-
-function sum64(buf, pos, ah, al) {
-  var bh = buf[pos];
-  var bl = buf[pos + 1];
-
-  var lo = (al + bl) >>> 0;
-  var hi = (lo < al ? 1 : 0) + ah + bh;
-  buf[pos] = hi >>> 0;
-  buf[pos + 1] = lo;
-}
-exports.sum64 = sum64;
-
-function sum64_hi(ah, al, bh, bl) {
-  var lo = (al + bl) >>> 0;
-  var hi = (lo < al ? 1 : 0) + ah + bh;
-  return hi >>> 0;
-};
-exports.sum64_hi = sum64_hi;
-
-function sum64_lo(ah, al, bh, bl) {
-  var lo = al + bl;
-  return lo >>> 0;
-};
-exports.sum64_lo = sum64_lo;
-
-function sum64_4_hi(ah, al, bh, bl, ch, cl, dh, dl) {
-  var carry = 0;
-  var lo = al;
-  lo = (lo + bl) >>> 0;
-  carry += lo < al ? 1 : 0;
-  lo = (lo + cl) >>> 0;
-  carry += lo < cl ? 1 : 0;
-  lo = (lo + dl) >>> 0;
-  carry += lo < dl ? 1 : 0;
-
-  var hi = ah + bh + ch + dh + carry;
-  return hi >>> 0;
-};
-exports.sum64_4_hi = sum64_4_hi;
-
-function sum64_4_lo(ah, al, bh, bl, ch, cl, dh, dl) {
-  var lo = al + bl + cl + dl;
-  return lo >>> 0;
-};
-exports.sum64_4_lo = sum64_4_lo;
-
-function sum64_5_hi(ah, al, bh, bl, ch, cl, dh, dl, eh, el) {
-  var carry = 0;
-  var lo = al;
-  lo = (lo + bl) >>> 0;
-  carry += lo < al ? 1 : 0;
-  lo = (lo + cl) >>> 0;
-  carry += lo < cl ? 1 : 0;
-  lo = (lo + dl) >>> 0;
-  carry += lo < dl ? 1 : 0;
-  lo = (lo + el) >>> 0;
-  carry += lo < el ? 1 : 0;
-
-  var hi = ah + bh + ch + dh + eh + carry;
-  return hi >>> 0;
-};
-exports.sum64_5_hi = sum64_5_hi;
-
-function sum64_5_lo(ah, al, bh, bl, ch, cl, dh, dl, eh, el) {
-  var lo = al + bl + cl + dl + el;
-
-  return lo >>> 0;
-};
-exports.sum64_5_lo = sum64_5_lo;
-
-function rotr64_hi(ah, al, num) {
-  var r = (al << (32 - num)) | (ah >>> num);
-  return r >>> 0;
-};
-exports.rotr64_hi = rotr64_hi;
-
-function rotr64_lo(ah, al, num) {
-  var r = (ah << (32 - num)) | (al >>> num);
-  return r >>> 0;
-};
-exports.rotr64_lo = rotr64_lo;
-
-function shr64_hi(ah, al, num) {
-  return ah >>> num;
-};
-exports.shr64_hi = shr64_hi;
-
-function shr64_lo(ah, al, num) {
-  var r = (ah << (32 - num)) | (al >>> num);
-  return r >>> 0;
-};
-exports.shr64_lo = shr64_lo;
-
-},{"inherits":121}],120:[function(require,module,exports){
-'use strict';
-
-var hash = require('hash.js');
-var utils = require('minimalistic-crypto-utils');
-var assert = require('minimalistic-assert');
-
-function HmacDRBG(options) {
-  if (!(this instanceof HmacDRBG))
-    return new HmacDRBG(options);
-  this.hash = options.hash;
-  this.predResist = !!options.predResist;
-
-  this.outLen = this.hash.outSize;
-  this.minEntropy = options.minEntropy || this.hash.hmacStrength;
-
-  this._reseed = null;
-  this.reseedInterval = null;
-  this.K = null;
-  this.V = null;
-
-  var entropy = utils.toArray(options.entropy, options.entropyEnc || 'hex');
-  var nonce = utils.toArray(options.nonce, options.nonceEnc || 'hex');
-  var pers = utils.toArray(options.pers, options.persEnc || 'hex');
-  assert(entropy.length >= (this.minEntropy / 8),
-         'Not enough entropy. Minimum is: ' + this.minEntropy + ' bits');
-  this._init(entropy, nonce, pers);
-}
-module.exports = HmacDRBG;
-
-HmacDRBG.prototype._init = function init(entropy, nonce, pers) {
-  var seed = entropy.concat(nonce).concat(pers);
-
-  this.K = new Array(this.outLen / 8);
-  this.V = new Array(this.outLen / 8);
-  for (var i = 0; i < this.V.length; i++) {
-    this.K[i] = 0x00;
-    this.V[i] = 0x01;
-  }
-
-  this._update(seed);
-  this._reseed = 1;
-  this.reseedInterval = 0x1000000000000;  // 2^48
-};
-
-HmacDRBG.prototype._hmac = function hmac() {
-  return new hash.hmac(this.hash, this.K);
-};
-
-HmacDRBG.prototype._update = function update(seed) {
-  var kmac = this._hmac()
-                 .update(this.V)
-                 .update([ 0x00 ]);
-  if (seed)
-    kmac = kmac.update(seed);
-  this.K = kmac.digest();
-  this.V = this._hmac().update(this.V).digest();
-  if (!seed)
-    return;
-
-  this.K = this._hmac()
-               .update(this.V)
-               .update([ 0x01 ])
-               .update(seed)
-               .digest();
-  this.V = this._hmac().update(this.V).digest();
-};
-
-HmacDRBG.prototype.reseed = function reseed(entropy, entropyEnc, add, addEnc) {
-  // Optional entropy enc
-  if (typeof entropyEnc !== 'string') {
-    addEnc = add;
-    add = entropyEnc;
-    entropyEnc = null;
-  }
-
-  entropy = utils.toArray(entropy, entropyEnc);
-  add = utils.toArray(add, addEnc);
-
-  assert(entropy.length >= (this.minEntropy / 8),
-         'Not enough entropy. Minimum is: ' + this.minEntropy + ' bits');
-
-  this._update(entropy.concat(add || []));
-  this._reseed = 1;
-};
-
-HmacDRBG.prototype.generate = function generate(len, enc, add, addEnc) {
-  if (this._reseed > this.reseedInterval)
-    throw new Error('Reseed is required');
-
-  // Optional encoding
-  if (typeof enc !== 'string') {
-    addEnc = add;
-    add = enc;
-    enc = null;
-  }
-
-  // Optional additional data
-  if (add) {
-    add = utils.toArray(add, addEnc || 'hex');
-    this._update(add);
-  }
-
-  var temp = [];
-  while (temp.length < len) {
-    this.V = this._hmac().update(this.V).digest();
-    temp = temp.concat(this.V);
-  }
-
-  var res = temp.slice(0, len);
-  this._update(add);
-  this._reseed++;
-  return utils.encode(res, enc);
-};
-
-},{"hash.js":114,"minimalistic-assert":123,"minimalistic-crypto-utils":124}],121:[function(require,module,exports){
-arguments[4][9][0].apply(exports,arguments)
-},{"dup":9}],122:[function(require,module,exports){
-(function (Buffer){
-// constant-space merkle root calculation algorithm
-module.exports = function fastRoot (values, digestFn) {
-  if (!Array.isArray(values)) throw TypeError('Expected values Array')
-  if (typeof digestFn !== 'function') throw TypeError('Expected digest Function')
-
-  var length = values.length
-  var results = values.concat()
-
-  while (length > 1) {
-    var j = 0
-
-    for (var i = 0; i < length; i += 2, ++j) {
-      var left = results[i]
-      var right = i + 1 === length ? left : results[i + 1]
-      var data = Buffer.concat([left, right])
-
-      results[j] = digestFn(data)
-    }
-
-    length = j
-  }
-
-  return results[0]
-}
-
-}).call(this,require("buffer").Buffer)
-},{"buffer":5}],123:[function(require,module,exports){
-module.exports = assert;
-
-function assert(val, msg) {
-  if (!val)
-    throw new Error(msg || 'Assertion failed');
-}
-
-assert.equal = function assertEqual(l, r, msg) {
-  if (l != r)
-    throw new Error(msg || ('Assertion failed: ' + l + ' != ' + r));
-};
-
-},{}],124:[function(require,module,exports){
-'use strict';
-
-var utils = exports;
-
-function toArray(msg, enc) {
-  if (Array.isArray(msg))
-    return msg.slice();
-  if (!msg)
-    return [];
-  var res = [];
-  if (typeof msg !== 'string') {
-    for (var i = 0; i < msg.length; i++)
-      res[i] = msg[i] | 0;
-    return res;
-  }
-  if (enc === 'hex') {
-    msg = msg.replace(/[^a-z0-9]+/ig, '');
-    if (msg.length % 2 !== 0)
-      msg = '0' + msg;
-    for (var i = 0; i < msg.length; i += 2)
-      res.push(parseInt(msg[i] + msg[i + 1], 16));
-  } else {
-    for (var i = 0; i < msg.length; i++) {
-      var c = msg.charCodeAt(i);
-      var hi = c >> 8;
-      var lo = c & 0xff;
-      if (hi)
-        res.push(hi, lo);
-      else
-        res.push(lo);
-    }
-  }
-  return res;
-}
-utils.toArray = toArray;
-
-function zero2(word) {
-  if (word.length === 1)
-    return '0' + word;
-  else
-    return word;
-}
-utils.zero2 = zero2;
-
-function toHex(msg) {
-  var res = '';
-  for (var i = 0; i < msg.length; i++)
-    res += zero2(msg[i].toString(16));
-  return res;
-}
-utils.toHex = toHex;
-
-utils.encode = function encode(arr, enc) {
-  if (enc === 'hex')
-    return toHex(arr);
-  else
-    return arr;
-};
-
-},{}],125:[function(require,module,exports){
-var OPS = require('bitcoin-ops')
-
-function encodingLength (i) {
-  return i < OPS.OP_PUSHDATA1 ? 1
-  : i <= 0xff ? 2
-  : i <= 0xffff ? 3
-  : 5
-}
-
-function encode (buffer, number, offset) {
-  var size = encodingLength(number)
-
-  // ~6 bit
-  if (size === 1) {
-    buffer.writeUInt8(number, offset)
-
-  // 8 bit
-  } else if (size === 2) {
-    buffer.writeUInt8(OPS.OP_PUSHDATA1, offset)
-    buffer.writeUInt8(number, offset + 1)
-
-  // 16 bit
-  } else if (size === 3) {
-    buffer.writeUInt8(OPS.OP_PUSHDATA2, offset)
-    buffer.writeUInt16LE(number, offset + 1)
-
-  // 32 bit
-  } else {
-    buffer.writeUInt8(OPS.OP_PUSHDATA4, offset)
-    buffer.writeUInt32LE(number, offset + 1)
-  }
-
-  return size
-}
-
-function decode (buffer, offset) {
-  var opcode = buffer.readUInt8(offset)
-  var number, size
-
-  // ~6 bit
-  if (opcode < OPS.OP_PUSHDATA1) {
-    number = opcode
-    size = 1
-
-  // 8 bit
-  } else if (opcode === OPS.OP_PUSHDATA1) {
-    if (offset + 2 > buffer.length) return null
-    number = buffer.readUInt8(offset + 1)
-    size = 2
-
-  // 16 bit
-  } else if (opcode === OPS.OP_PUSHDATA2) {
-    if (offset + 3 > buffer.length) return null
-    number = buffer.readUInt16LE(offset + 1)
-    size = 3
-
-  // 32 bit
-  } else {
-    if (offset + 5 > buffer.length) return null
-    if (opcode !== OPS.OP_PUSHDATA4) throw new Error('Unexpected opcode')
-
-    number = buffer.readUInt32LE(offset + 1)
-    size = 5
-  }
-
-  return {
-    opcode: opcode,
-    number: number,
-    size: size
-  }
-}
-
-module.exports = {
-  encodingLength: encodingLength,
-  encode: encode,
-  decode: decode
-}
-
-},{"bitcoin-ops":42}],126:[function(require,module,exports){
-(function (process,global){
-'use strict'
-
-function oldBrowser () {
-  throw new Error('secure random number generation not supported by this browser\nuse chrome, FireFox or Internet Explorer 11')
-}
-
-var Buffer = require('safe-buffer').Buffer
-var crypto = global.crypto || global.msCrypto
-
-if (crypto && crypto.getRandomValues) {
-  module.exports = randomBytes
-} else {
-  module.exports = oldBrowser
-}
-
-function randomBytes (size, cb) {
-  // phantomjs needs to throw
-  if (size > 65536) throw new Error('requested too many random bytes')
-  // in case browserify  isn't using the Uint8Array version
-  var rawBytes = new global.Uint8Array(size)
-
-  // This will not work in older browsers.
-  // See https://developer.mozilla.org/en-US/docs/Web/API/window.crypto.getRandomValues
-  if (size > 0) {  // getRandomValues fails on IE if size == 0
-    crypto.getRandomValues(rawBytes)
-  }
-
-  // XXX: phantomjs doesn't like a buffer being passed here
-  var bytes = Buffer.from(rawBytes.buffer)
-
-  if (typeof cb === 'function') {
-    return process.nextTick(function () {
-      cb(null, bytes)
-    })
-  }
-
-  return bytes
-}
-
-}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"_process":13,"safe-buffer":128}],127:[function(require,module,exports){
-(function (Buffer){
-'use strict'
-var inherits = require('inherits')
-var HashBase = require('hash-base')
-
-function RIPEMD160 () {
-  HashBase.call(this, 64)
-
-  // state
-  this._a = 0x67452301
-  this._b = 0xefcdab89
-  this._c = 0x98badcfe
-  this._d = 0x10325476
-  this._e = 0xc3d2e1f0
-}
-
-inherits(RIPEMD160, HashBase)
-
-RIPEMD160.prototype._update = function () {
-  var m = new Array(16)
-  for (var i = 0; i < 16; ++i) m[i] = this._block.readInt32LE(i * 4)
-
-  var al = this._a
-  var bl = this._b
-  var cl = this._c
-  var dl = this._d
-  var el = this._e
-
-  // Mj = 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
-  // K = 0x00000000
-  // Sj = 11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8
-  al = fn1(al, bl, cl, dl, el, m[0], 0x00000000, 11); cl = rotl(cl, 10)
-  el = fn1(el, al, bl, cl, dl, m[1], 0x00000000, 14); bl = rotl(bl, 10)
-  dl = fn1(dl, el, al, bl, cl, m[2], 0x00000000, 15); al = rotl(al, 10)
-  cl = fn1(cl, dl, el, al, bl, m[3], 0x00000000, 12); el = rotl(el, 10)
-  bl = fn1(bl, cl, dl, el, al, m[4], 0x00000000, 5); dl = rotl(dl, 10)
-  al = fn1(al, bl, cl, dl, el, m[5], 0x00000000, 8); cl = rotl(cl, 10)
-  el = fn1(el, al, bl, cl, dl, m[6], 0x00000000, 7); bl = rotl(bl, 10)
-  dl = fn1(dl, el, al, bl, cl, m[7], 0x00000000, 9); al = rotl(al, 10)
-  cl = fn1(cl, dl, el, al, bl, m[8], 0x00000000, 11); el = rotl(el, 10)
-  bl = fn1(bl, cl, dl, el, al, m[9], 0x00000000, 13); dl = rotl(dl, 10)
-  al = fn1(al, bl, cl, dl, el, m[10], 0x00000000, 14); cl = rotl(cl, 10)
-  el = fn1(el, al, bl, cl, dl, m[11], 0x00000000, 15); bl = rotl(bl, 10)
-  dl = fn1(dl, el, al, bl, cl, m[12], 0x00000000, 6); al = rotl(al, 10)
-  cl = fn1(cl, dl, el, al, bl, m[13], 0x00000000, 7); el = rotl(el, 10)
-  bl = fn1(bl, cl, dl, el, al, m[14], 0x00000000, 9); dl = rotl(dl, 10)
-  al = fn1(al, bl, cl, dl, el, m[15], 0x00000000, 8); cl = rotl(cl, 10)
-
-  // Mj = 7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8
-  // K = 0x5a827999
-  // Sj = 7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12
-  el = fn2(el, al, bl, cl, dl, m[7], 0x5a827999, 7); bl = rotl(bl, 10)
-  dl = fn2(dl, el, al, bl, cl, m[4], 0x5a827999, 6); al = rotl(al, 10)
-  cl = fn2(cl, dl, el, al, bl, m[13], 0x5a827999, 8); el = rotl(el, 10)
-  bl = fn2(bl, cl, dl, el, al, m[1], 0x5a827999, 13); dl = rotl(dl, 10)
-  al = fn2(al, bl, cl, dl, el, m[10], 0x5a827999, 11); cl = rotl(cl, 10)
-  el = fn2(el, al, bl, cl, dl, m[6], 0x5a827999, 9); bl = rotl(bl, 10)
-  dl = fn2(dl, el, al, bl, cl, m[15], 0x5a827999, 7); al = rotl(al, 10)
-  cl = fn2(cl, dl, el, al, bl, m[3], 0x5a827999, 15); el = rotl(el, 10)
-  bl = fn2(bl, cl, dl, el, al, m[12], 0x5a827999, 7); dl = rotl(dl, 10)
-  al = fn2(al, bl, cl, dl, el, m[0], 0x5a827999, 12); cl = rotl(cl, 10)
-  el = fn2(el, al, bl, cl, dl, m[9], 0x5a827999, 15); bl = rotl(bl, 10)
-  dl = fn2(dl, el, al, bl, cl, m[5], 0x5a827999, 9); al = rotl(al, 10)
-  cl = fn2(cl, dl, el, al, bl, m[2], 0x5a827999, 11); el = rotl(el, 10)
-  bl = fn2(bl, cl, dl, el, al, m[14], 0x5a827999, 7); dl = rotl(dl, 10)
-  al = fn2(al, bl, cl, dl, el, m[11], 0x5a827999, 13); cl = rotl(cl, 10)
-  el = fn2(el, al, bl, cl, dl, m[8], 0x5a827999, 12); bl = rotl(bl, 10)
-
-  // Mj = 3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12
-  // K = 0x6ed9eba1
-  // Sj = 11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5
-  dl = fn3(dl, el, al, bl, cl, m[3], 0x6ed9eba1, 11); al = rotl(al, 10)
-  cl = fn3(cl, dl, el, al, bl, m[10], 0x6ed9eba1, 13); el = rotl(el, 10)
-  bl = fn3(bl, cl, dl, el, al, m[14], 0x6ed9eba1, 6); dl = rotl(dl, 10)
-  al = fn3(al, bl, cl, dl, el, m[4], 0x6ed9eba1, 7); cl = rotl(cl, 10)
-  el = fn3(el, al, bl, cl, dl, m[9], 0x6ed9eba1, 14); bl = rotl(bl, 10)
-  dl = fn3(dl, el, al, bl, cl, m[15], 0x6ed9eba1, 9); al = rotl(al, 10)
-  cl = fn3(cl, dl, el, al, bl, m[8], 0x6ed9eba1, 13); el = rotl(el, 10)
-  bl = fn3(bl, cl, dl, el, al, m[1], 0x6ed9eba1, 15); dl = rotl(dl, 10)
-  al = fn3(al, bl, cl, dl, el, m[2], 0x6ed9eba1, 14); cl = rotl(cl, 10)
-  el = fn3(el, al, bl, cl, dl, m[7], 0x6ed9eba1, 8); bl = rotl(bl, 10)
-  dl = fn3(dl, el, al, bl, cl, m[0], 0x6ed9eba1, 13); al = rotl(al, 10)
-  cl = fn3(cl, dl, el, al, bl, m[6], 0x6ed9eba1, 6); el = rotl(el, 10)
-  bl = fn3(bl, cl, dl, el, al, m[13], 0x6ed9eba1, 5); dl = rotl(dl, 10)
-  al = fn3(al, bl, cl, dl, el, m[11], 0x6ed9eba1, 12); cl = rotl(cl, 10)
-  el = fn3(el, al, bl, cl, dl, m[5], 0x6ed9eba1, 7); bl = rotl(bl, 10)
-  dl = fn3(dl, el, al, bl, cl, m[12], 0x6ed9eba1, 5); al = rotl(al, 10)
-
-  // Mj = 1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2
-  // K = 0x8f1bbcdc
-  // Sj = 11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12
-  cl = fn4(cl, dl, el, al, bl, m[1], 0x8f1bbcdc, 11); el = rotl(el, 10)
-  bl = fn4(bl, cl, dl, el, al, m[9], 0x8f1bbcdc, 12); dl = rotl(dl, 10)
-  al = fn4(al, bl, cl, dl, el, m[11], 0x8f1bbcdc, 14); cl = rotl(cl, 10)
-  el = fn4(el, al, bl, cl, dl, m[10], 0x8f1bbcdc, 15); bl = rotl(bl, 10)
-  dl = fn4(dl, el, al, bl, cl, m[0], 0x8f1bbcdc, 14); al = rotl(al, 10)
-  cl = fn4(cl, dl, el, al, bl, m[8], 0x8f1bbcdc, 15); el = rotl(el, 10)
-  bl = fn4(bl, cl, dl, el, al, m[12], 0x8f1bbcdc, 9); dl = rotl(dl, 10)
-  al = fn4(al, bl, cl, dl, el, m[4], 0x8f1bbcdc, 8); cl = rotl(cl, 10)
-  el = fn4(el, al, bl, cl, dl, m[13], 0x8f1bbcdc, 9); bl = rotl(bl, 10)
-  dl = fn4(dl, el, al, bl, cl, m[3], 0x8f1bbcdc, 14); al = rotl(al, 10)
-  cl = fn4(cl, dl, el, al, bl, m[7], 0x8f1bbcdc, 5); el = rotl(el, 10)
-  bl = fn4(bl, cl, dl, el, al, m[15], 0x8f1bbcdc, 6); dl = rotl(dl, 10)
-  al = fn4(al, bl, cl, dl, el, m[14], 0x8f1bbcdc, 8); cl = rotl(cl, 10)
-  el = fn4(el, al, bl, cl, dl, m[5], 0x8f1bbcdc, 6); bl = rotl(bl, 10)
-  dl = fn4(dl, el, al, bl, cl, m[6], 0x8f1bbcdc, 5); al = rotl(al, 10)
-  cl = fn4(cl, dl, el, al, bl, m[2], 0x8f1bbcdc, 12); el = rotl(el, 10)
-
-  // Mj = 4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13
-  // K = 0xa953fd4e
-  // Sj = 9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6
-  bl = fn5(bl, cl, dl, el, al, m[4], 0xa953fd4e, 9); dl = rotl(dl, 10)
-  al = fn5(al, bl, cl, dl, el, m[0], 0xa953fd4e, 15); cl = rotl(cl, 10)
-  el = fn5(el, al, bl, cl, dl, m[5], 0xa953fd4e, 5); bl = rotl(bl, 10)
-  dl = fn5(dl, el, al, bl, cl, m[9], 0xa953fd4e, 11); al = rotl(al, 10)
-  cl = fn5(cl, dl, el, al, bl, m[7], 0xa953fd4e, 6); el = rotl(el, 10)
-  bl = fn5(bl, cl, dl, el, al, m[12], 0xa953fd4e, 8); dl = rotl(dl, 10)
-  al = fn5(al, bl, cl, dl, el, m[2], 0xa953fd4e, 13); cl = rotl(cl, 10)
-  el = fn5(el, al, bl, cl, dl, m[10], 0xa953fd4e, 12); bl = rotl(bl, 10)
-  dl = fn5(dl, el, al, bl, cl, m[14], 0xa953fd4e, 5); al = rotl(al, 10)
-  cl = fn5(cl, dl, el, al, bl, m[1], 0xa953fd4e, 12); el = rotl(el, 10)
-  bl = fn5(bl, cl, dl, el, al, m[3], 0xa953fd4e, 13); dl = rotl(dl, 10)
-  al = fn5(al, bl, cl, dl, el, m[8], 0xa953fd4e, 14); cl = rotl(cl, 10)
-  el = fn5(el, al, bl, cl, dl, m[11], 0xa953fd4e, 11); bl = rotl(bl, 10)
-  dl = fn5(dl, el, al, bl, cl, m[6], 0xa953fd4e, 8); al = rotl(al, 10)
-  cl = fn5(cl, dl, el, al, bl, m[15], 0xa953fd4e, 5); el = rotl(el, 10)
-  bl = fn5(bl, cl, dl, el, al, m[13], 0xa953fd4e, 6); dl = rotl(dl, 10)
-
-  var ar = this._a
-  var br = this._b
-  var cr = this._c
-  var dr = this._d
-  var er = this._e
-
-  // M'j = 5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12
-  // K' = 0x50a28be6
-  // S'j = 8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6
-  ar = fn5(ar, br, cr, dr, er, m[5], 0x50a28be6, 8); cr = rotl(cr, 10)
-  er = fn5(er, ar, br, cr, dr, m[14], 0x50a28be6, 9); br = rotl(br, 10)
-  dr = fn5(dr, er, ar, br, cr, m[7], 0x50a28be6, 9); ar = rotl(ar, 10)
-  cr = fn5(cr, dr, er, ar, br, m[0], 0x50a28be6, 11); er = rotl(er, 10)
-  br = fn5(br, cr, dr, er, ar, m[9], 0x50a28be6, 13); dr = rotl(dr, 10)
-  ar = fn5(ar, br, cr, dr, er, m[2], 0x50a28be6, 15); cr = rotl(cr, 10)
-  er = fn5(er, ar, br, cr, dr, m[11], 0x50a28be6, 15); br = rotl(br, 10)
-  dr = fn5(dr, er, ar, br, cr, m[4], 0x50a28be6, 5); ar = rotl(ar, 10)
-  cr = fn5(cr, dr, er, ar, br, m[13], 0x50a28be6, 7); er = rotl(er, 10)
-  br = fn5(br, cr, dr, er, ar, m[6], 0x50a28be6, 7); dr = rotl(dr, 10)
-  ar = fn5(ar, br, cr, dr, er, m[15], 0x50a28be6, 8); cr = rotl(cr, 10)
-  er = fn5(er, ar, br, cr, dr, m[8], 0x50a28be6, 11); br = rotl(br, 10)
-  dr = fn5(dr, er, ar, br, cr, m[1], 0x50a28be6, 14); ar = rotl(ar, 10)
-  cr = fn5(cr, dr, er, ar, br, m[10], 0x50a28be6, 14); er = rotl(er, 10)
-  br = fn5(br, cr, dr, er, ar, m[3], 0x50a28be6, 12); dr = rotl(dr, 10)
-  ar = fn5(ar, br, cr, dr, er, m[12], 0x50a28be6, 6); cr = rotl(cr, 10)
-
-  // M'j = 6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2
-  // K' = 0x5c4dd124
-  // S'j = 9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11
-  er = fn4(er, ar, br, cr, dr, m[6], 0x5c4dd124, 9); br = rotl(br, 10)
-  dr = fn4(dr, er, ar, br, cr, m[11], 0x5c4dd124, 13); ar = rotl(ar, 10)
-  cr = fn4(cr, dr, er, ar, br, m[3], 0x5c4dd124, 15); er = rotl(er, 10)
-  br = fn4(br, cr, dr, er, ar, m[7], 0x5c4dd124, 7); dr = rotl(dr, 10)
-  ar = fn4(ar, br, cr, dr, er, m[0], 0x5c4dd124, 12); cr = rotl(cr, 10)
-  er = fn4(er, ar, br, cr, dr, m[13], 0x5c4dd124, 8); br = rotl(br, 10)
-  dr = fn4(dr, er, ar, br, cr, m[5], 0x5c4dd124, 9); ar = rotl(ar, 10)
-  cr = fn4(cr, dr, er, ar, br, m[10], 0x5c4dd124, 11); er = rotl(er, 10)
-  br = fn4(br, cr, dr, er, ar, m[14], 0x5c4dd124, 7); dr = rotl(dr, 10)
-  ar = fn4(ar, br, cr, dr, er, m[15], 0x5c4dd124, 7); cr = rotl(cr, 10)
-  er = fn4(er, ar, br, cr, dr, m[8], 0x5c4dd124, 12); br = rotl(br, 10)
-  dr = fn4(dr, er, ar, br, cr, m[12], 0x5c4dd124, 7); ar = rotl(ar, 10)
-  cr = fn4(cr, dr, er, ar, br, m[4], 0x5c4dd124, 6); er = rotl(er, 10)
-  br = fn4(br, cr, dr, er, ar, m[9], 0x5c4dd124, 15); dr = rotl(dr, 10)
-  ar = fn4(ar, br, cr, dr, er, m[1], 0x5c4dd124, 13); cr = rotl(cr, 10)
-  er = fn4(er, ar, br, cr, dr, m[2], 0x5c4dd124, 11); br = rotl(br, 10)
-
-  // M'j = 15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13
-  // K' = 0x6d703ef3
-  // S'j = 9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5
-  dr = fn3(dr, er, ar, br, cr, m[15], 0x6d703ef3, 9); ar = rotl(ar, 10)
-  cr = fn3(cr, dr, er, ar, br, m[5], 0x6d703ef3, 7); er = rotl(er, 10)
-  br = fn3(br, cr, dr, er, ar, m[1], 0x6d703ef3, 15); dr = rotl(dr, 10)
-  ar = fn3(ar, br, cr, dr, er, m[3], 0x6d703ef3, 11); cr = rotl(cr, 10)
-  er = fn3(er, ar, br, cr, dr, m[7], 0x6d703ef3, 8); br = rotl(br, 10)
-  dr = fn3(dr, er, ar, br, cr, m[14], 0x6d703ef3, 6); ar = rotl(ar, 10)
-  cr = fn3(cr, dr, er, ar, br, m[6], 0x6d703ef3, 6); er = rotl(er, 10)
-  br = fn3(br, cr, dr, er, ar, m[9], 0x6d703ef3, 14); dr = rotl(dr, 10)
-  ar = fn3(ar, br, cr, dr, er, m[11], 0x6d703ef3, 12); cr = rotl(cr, 10)
-  er = fn3(er, ar, br, cr, dr, m[8], 0x6d703ef3, 13); br = rotl(br, 10)
-  dr = fn3(dr, er, ar, br, cr, m[12], 0x6d703ef3, 5); ar = rotl(ar, 10)
-  cr = fn3(cr, dr, er, ar, br, m[2], 0x6d703ef3, 14); er = rotl(er, 10)
-  br = fn3(br, cr, dr, er, ar, m[10], 0x6d703ef3, 13); dr = rotl(dr, 10)
-  ar = fn3(ar, br, cr, dr, er, m[0], 0x6d703ef3, 13); cr = rotl(cr, 10)
-  er = fn3(er, ar, br, cr, dr, m[4], 0x6d703ef3, 7); br = rotl(br, 10)
-  dr = fn3(dr, er, ar, br, cr, m[13], 0x6d703ef3, 5); ar = rotl(ar, 10)
-
-  // M'j = 8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14
-  // K' = 0x7a6d76e9
-  // S'j = 15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8
-  cr = fn2(cr, dr, er, ar, br, m[8], 0x7a6d76e9, 15); er = rotl(er, 10)
-  br = fn2(br, cr, dr, er, ar, m[6], 0x7a6d76e9, 5); dr = rotl(dr, 10)
-  ar = fn2(ar, br, cr, dr, er, m[4], 0x7a6d76e9, 8); cr = rotl(cr, 10)
-  er = fn2(er, ar, br, cr, dr, m[1], 0x7a6d76e9, 11); br = rotl(br, 10)
-  dr = fn2(dr, er, ar, br, cr, m[3], 0x7a6d76e9, 14); ar = rotl(ar, 10)
-  cr = fn2(cr, dr, er, ar, br, m[11], 0x7a6d76e9, 14); er = rotl(er, 10)
-  br = fn2(br, cr, dr, er, ar, m[15], 0x7a6d76e9, 6); dr = rotl(dr, 10)
-  ar = fn2(ar, br, cr, dr, er, m[0], 0x7a6d76e9, 14); cr = rotl(cr, 10)
-  er = fn2(er, ar, br, cr, dr, m[5], 0x7a6d76e9, 6); br = rotl(br, 10)
-  dr = fn2(dr, er, ar, br, cr, m[12], 0x7a6d76e9, 9); ar = rotl(ar, 10)
-  cr = fn2(cr, dr, er, ar, br, m[2], 0x7a6d76e9, 12); er = rotl(er, 10)
-  br = fn2(br, cr, dr, er, ar, m[13], 0x7a6d76e9, 9); dr = rotl(dr, 10)
-  ar = fn2(ar, br, cr, dr, er, m[9], 0x7a6d76e9, 12); cr = rotl(cr, 10)
-  er = fn2(er, ar, br, cr, dr, m[7], 0x7a6d76e9, 5); br = rotl(br, 10)
-  dr = fn2(dr, er, ar, br, cr, m[10], 0x7a6d76e9, 15); ar = rotl(ar, 10)
-  cr = fn2(cr, dr, er, ar, br, m[14], 0x7a6d76e9, 8); er = rotl(er, 10)
-
-  // M'j = 12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11
-  // K' = 0x00000000
-  // S'j = 8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11
-  br = fn1(br, cr, dr, er, ar, m[12], 0x00000000, 8); dr = rotl(dr, 10)
-  ar = fn1(ar, br, cr, dr, er, m[15], 0x00000000, 5); cr = rotl(cr, 10)
-  er = fn1(er, ar, br, cr, dr, m[10], 0x00000000, 12); br = rotl(br, 10)
-  dr = fn1(dr, er, ar, br, cr, m[4], 0x00000000, 9); ar = rotl(ar, 10)
-  cr = fn1(cr, dr, er, ar, br, m[1], 0x00000000, 12); er = rotl(er, 10)
-  br = fn1(br, cr, dr, er, ar, m[5], 0x00000000, 5); dr = rotl(dr, 10)
-  ar = fn1(ar, br, cr, dr, er, m[8], 0x00000000, 14); cr = rotl(cr, 10)
-  er = fn1(er, ar, br, cr, dr, m[7], 0x00000000, 6); br = rotl(br, 10)
-  dr = fn1(dr, er, ar, br, cr, m[6], 0x00000000, 8); ar = rotl(ar, 10)
-  cr = fn1(cr, dr, er, ar, br, m[2], 0x00000000, 13); er = rotl(er, 10)
-  br = fn1(br, cr, dr, er, ar, m[13], 0x00000000, 6); dr = rotl(dr, 10)
-  ar = fn1(ar, br, cr, dr, er, m[14], 0x00000000, 5); cr = rotl(cr, 10)
-  er = fn1(er, ar, br, cr, dr, m[0], 0x00000000, 15); br = rotl(br, 10)
-  dr = fn1(dr, er, ar, br, cr, m[3], 0x00000000, 13); ar = rotl(ar, 10)
-  cr = fn1(cr, dr, er, ar, br, m[9], 0x00000000, 11); er = rotl(er, 10)
-  br = fn1(br, cr, dr, er, ar, m[11], 0x00000000, 11); dr = rotl(dr, 10)
-
-  // change state
-  var t = (this._b + cl + dr) | 0
-  this._b = (this._c + dl + er) | 0
-  this._c = (this._d + el + ar) | 0
-  this._d = (this._e + al + br) | 0
-  this._e = (this._a + bl + cr) | 0
-  this._a = t
-}
-
-RIPEMD160.prototype._digest = function () {
-  // create padding and handle blocks
-  this._block[this._blockOffset++] = 0x80
-  if (this._blockOffset > 56) {
-    this._block.fill(0, this._blockOffset, 64)
-    this._update()
-    this._blockOffset = 0
-  }
-
-  this._block.fill(0, this._blockOffset, 56)
-  this._block.writeUInt32LE(this._length[0], 56)
-  this._block.writeUInt32LE(this._length[1], 60)
-  this._update()
-
-  // produce result
-  var buffer = new Buffer(20)
-  buffer.writeInt32LE(this._a, 0)
-  buffer.writeInt32LE(this._b, 4)
-  buffer.writeInt32LE(this._c, 8)
-  buffer.writeInt32LE(this._d, 12)
-  buffer.writeInt32LE(this._e, 16)
-  return buffer
-}
-
-function rotl (x, n) {
-  return (x << n) | (x >>> (32 - n))
-}
-
-function fn1 (a, b, c, d, e, m, k, s) {
-  return (rotl((a + (b ^ c ^ d) + m + k) | 0, s) + e) | 0
-}
-
-function fn2 (a, b, c, d, e, m, k, s) {
-  return (rotl((a + ((b & c) | ((~b) & d)) + m + k) | 0, s) + e) | 0
-}
-
-function fn3 (a, b, c, d, e, m, k, s) {
-  return (rotl((a + ((b | (~c)) ^ d) + m + k) | 0, s) + e) | 0
-}
-
-function fn4 (a, b, c, d, e, m, k, s) {
-  return (rotl((a + ((b & d) | (c & (~d))) + m + k) | 0, s) + e) | 0
-}
-
-function fn5 (a, b, c, d, e, m, k, s) {
-  return (rotl((a + (b ^ (c | (~d))) + m + k) | 0, s) + e) | 0
-}
-
-module.exports = RIPEMD160
-
-}).call(this,require("buffer").Buffer)
-},{"buffer":5,"hash-base":113,"inherits":121}],128:[function(require,module,exports){
-/* eslint-disable node/no-deprecated-api */
-var buffer = require('buffer')
-var Buffer = buffer.Buffer
-
-// alternative to using Object.keys for old browsers
-function copyProps (src, dst) {
-  for (var key in src) {
-    dst[key] = src[key]
-  }
-}
-if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {
-  module.exports = buffer
-} else {
-  // Copy properties from require('buffer')
-  copyProps(buffer, exports)
-  exports.Buffer = SafeBuffer
-}
-
-function SafeBuffer (arg, encodingOrOffset, length) {
-  return Buffer(arg, encodingOrOffset, length)
-}
-
-// Copy static methods from Buffer
-copyProps(Buffer, SafeBuffer)
-
-SafeBuffer.from = function (arg, encodingOrOffset, length) {
-  if (typeof arg === 'number') {
-    throw new TypeError('Argument must not be a number')
-  }
-  return Buffer(arg, encodingOrOffset, length)
-}
-
-SafeBuffer.alloc = function (size, fill, encoding) {
-  if (typeof size !== 'number') {
-    throw new TypeError('Argument must be a number')
-  }
-  var buf = Buffer(size)
-  if (fill !== undefined) {
-    if (typeof encoding === 'string') {
-      buf.fill(fill, encoding)
-    } else {
-      buf.fill(fill)
-    }
-  } else {
-    buf.fill(0)
-  }
-  return buf
-}
-
-SafeBuffer.allocUnsafe = function (size) {
-  if (typeof size !== 'number') {
-    throw new TypeError('Argument must be a number')
-  }
-  return Buffer(size)
-}
-
-SafeBuffer.allocUnsafeSlow = function (size) {
-  if (typeof size !== 'number') {
-    throw new TypeError('Argument must be a number')
-  }
-  return buffer.SlowBuffer(size)
-}
-
-},{"buffer":5}],129:[function(require,module,exports){
-var Buffer = require('safe-buffer').Buffer
-
-// prototype class for hash functions
-function Hash (blockSize, finalSize) {
-  this._block = Buffer.alloc(blockSize)
-  this._finalSize = finalSize
-  this._blockSize = blockSize
-  this._len = 0
-}
-
-Hash.prototype.update = function (data, enc) {
-  if (typeof data === 'string') {
-    enc = enc || 'utf8'
-    data = Buffer.from(data, enc)
-  }
-
-  var block = this._block
-  var blockSize = this._blockSize
-  var length = data.length
-  var accum = this._len
-
-  for (var offset = 0; offset < length;) {
-    var assigned = accum % blockSize
-    var remainder = Math.min(length - offset, blockSize - assigned)
-
-    for (var i = 0; i < remainder; i++) {
-      block[assigned + i] = data[offset + i]
-    }
-
-    accum += remainder
-    offset += remainder
-
-    if ((accum % blockSize) === 0) {
-      this._update(block)
-    }
-  }
-
-  this._len += length
-  return this
-}
-
-Hash.prototype.digest = function (enc) {
-  var rem = this._len % this._blockSize
-
-  this._block[rem] = 0x80
-
-  // zero (rem + 1) trailing bits, where (rem + 1) is the smallest
-  // non-negative solution to the equation (length + 1 + (rem + 1)) === finalSize mod blockSize
-  this._block.fill(0, rem + 1)
-
-  if (rem >= this._finalSize) {
-    this._update(this._block)
-    this._block.fill(0)
-  }
-
-  var bits = this._len * 8
-
-  // uint32
-  if (bits <= 0xffffffff) {
-    this._block.writeUInt32BE(bits, this._blockSize - 4)
-
-  // uint64
-  } else {
-    var lowBits = bits & 0xffffffff
-    var highBits = (bits - lowBits) / 0x100000000
-
-    this._block.writeUInt32BE(highBits, this._blockSize - 8)
-    this._block.writeUInt32BE(lowBits, this._blockSize - 4)
-  }
-
-  this._update(this._block)
-  var hash = this._hash()
-
-  return enc ? hash.toString(enc) : hash
-}
-
-Hash.prototype._update = function () {
-  throw new Error('_update must be implemented by subclass')
-}
-
-module.exports = Hash
-
-},{"safe-buffer":128}],130:[function(require,module,exports){
-var exports = module.exports = function SHA (algorithm) {
-  algorithm = algorithm.toLowerCase()
-
-  var Algorithm = exports[algorithm]
-  if (!Algorithm) throw new Error(algorithm + ' is not supported (we accept pull requests)')
-
-  return new Algorithm()
-}
-
-exports.sha = require('./sha')
-exports.sha1 = require('./sha1')
-exports.sha224 = require('./sha224')
-exports.sha256 = require('./sha256')
-exports.sha384 = require('./sha384')
-exports.sha512 = require('./sha512')
-
-},{"./sha":131,"./sha1":132,"./sha224":133,"./sha256":134,"./sha384":135,"./sha512":136}],131:[function(require,module,exports){
-/*
- * A JavaScript implementation of the Secure Hash Algorithm, SHA-0, as defined
- * in FIPS PUB 180-1
- * This source code is derived from sha1.js of the same repository.
- * The difference between SHA-0 and SHA-1 is just a bitwise rotate left
- * operation was added.
- */
-
-var inherits = require('inherits')
-var Hash = require('./hash')
-var Buffer = require('safe-buffer').Buffer
-
-var K = [
-  0x5a827999, 0x6ed9eba1, 0x8f1bbcdc | 0, 0xca62c1d6 | 0
-]
-
-var W = new Array(80)
-
-function Sha () {
-  this.init()
-  this._w = W
-
-  Hash.call(this, 64, 56)
-}
-
-inherits(Sha, Hash)
-
-Sha.prototype.init = function () {
-  this._a = 0x67452301
-  this._b = 0xefcdab89
-  this._c = 0x98badcfe
-  this._d = 0x10325476
-  this._e = 0xc3d2e1f0
-
-  return this
-}
-
-function rotl5 (num) {
-  return (num << 5) | (num >>> 27)
-}
-
-function rotl30 (num) {
-  return (num << 30) | (num >>> 2)
-}
-
-function ft (s, b, c, d) {
-  if (s === 0) return (b & c) | ((~b) & d)
-  if (s === 2) return (b & c) | (b & d) | (c & d)
-  return b ^ c ^ d
-}
-
-Sha.prototype._update = function (M) {
-  var W = this._w
-
-  var a = this._a | 0
-  var b = this._b | 0
-  var c = this._c | 0
-  var d = this._d | 0
-  var e = this._e | 0
-
-  for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4)
-  for (; i < 80; ++i) W[i] = W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16]
-
-  for (var j = 0; j < 80; ++j) {
-    var s = ~~(j / 20)
-    var t = (rotl5(a) + ft(s, b, c, d) + e + W[j] + K[s]) | 0
-
-    e = d
-    d = c
-    c = rotl30(b)
-    b = a
-    a = t
-  }
-
-  this._a = (a + this._a) | 0
-  this._b = (b + this._b) | 0
-  this._c = (c + this._c) | 0
-  this._d = (d + this._d) | 0
-  this._e = (e + this._e) | 0
-}
-
-Sha.prototype._hash = function () {
-  var H = Buffer.allocUnsafe(20)
-
-  H.writeInt32BE(this._a | 0, 0)
-  H.writeInt32BE(this._b | 0, 4)
-  H.writeInt32BE(this._c | 0, 8)
-  H.writeInt32BE(this._d | 0, 12)
-  H.writeInt32BE(this._e | 0, 16)
-
-  return H
-}
-
-module.exports = Sha
-
-},{"./hash":129,"inherits":121,"safe-buffer":128}],132:[function(require,module,exports){
-/*
- * A JavaScript implementation of the Secure Hash Algorithm, SHA-1, as defined
- * in FIPS PUB 180-1
- * Version 2.1a Copyright Paul Johnston 2000 - 2002.
- * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
- * Distributed under the BSD License
- * See http://pajhome.org.uk/crypt/md5 for details.
- */
-
-var inherits = require('inherits')
-var Hash = require('./hash')
-var Buffer = require('safe-buffer').Buffer
-
-var K = [
-  0x5a827999, 0x6ed9eba1, 0x8f1bbcdc | 0, 0xca62c1d6 | 0
-]
-
-var W = new Array(80)
-
-function Sha1 () {
-  this.init()
-  this._w = W
-
-  Hash.call(this, 64, 56)
-}
-
-inherits(Sha1, Hash)
-
-Sha1.prototype.init = function () {
-  this._a = 0x67452301
-  this._b = 0xefcdab89
-  this._c = 0x98badcfe
-  this._d = 0x10325476
-  this._e = 0xc3d2e1f0
-
-  return this
-}
-
-function rotl1 (num) {
-  return (num << 1) | (num >>> 31)
-}
-
-function rotl5 (num) {
-  return (num << 5) | (num >>> 27)
-}
-
-function rotl30 (num) {
-  return (num << 30) | (num >>> 2)
-}
-
-function ft (s, b, c, d) {
-  if (s === 0) return (b & c) | ((~b) & d)
-  if (s === 2) return (b & c) | (b & d) | (c & d)
-  return b ^ c ^ d
-}
-
-Sha1.prototype._update = function (M) {
-  var W = this._w
-
-  var a = this._a | 0
-  var b = this._b | 0
-  var c = this._c | 0
-  var d = this._d | 0
-  var e = this._e | 0
-
-  for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4)
-  for (; i < 80; ++i) W[i] = rotl1(W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16])
-
-  for (var j = 0; j < 80; ++j) {
-    var s = ~~(j / 20)
-    var t = (rotl5(a) + ft(s, b, c, d) + e + W[j] + K[s]) | 0
-
-    e = d
-    d = c
-    c = rotl30(b)
-    b = a
-    a = t
-  }
-
-  this._a = (a + this._a) | 0
-  this._b = (b + this._b) | 0
-  this._c = (c + this._c) | 0
-  this._d = (d + this._d) | 0
-  this._e = (e + this._e) | 0
-}
-
-Sha1.prototype._hash = function () {
-  var H = Buffer.allocUnsafe(20)
-
-  H.writeInt32BE(this._a | 0, 0)
-  H.writeInt32BE(this._b | 0, 4)
-  H.writeInt32BE(this._c | 0, 8)
-  H.writeInt32BE(this._d | 0, 12)
-  H.writeInt32BE(this._e | 0, 16)
-
-  return H
-}
-
-module.exports = Sha1
-
-},{"./hash":129,"inherits":121,"safe-buffer":128}],133:[function(require,module,exports){
-/**
- * A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as defined
- * in FIPS 180-2
- * Version 2.2-beta Copyright Angel Marin, Paul Johnston 2000 - 2009.
- * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
- *
- */
-
-var inherits = require('inherits')
-var Sha256 = require('./sha256')
-var Hash = require('./hash')
-var Buffer = require('safe-buffer').Buffer
-
-var W = new Array(64)
-
-function Sha224 () {
-  this.init()
-
-  this._w = W // new Array(64)
-
-  Hash.call(this, 64, 56)
-}
-
-inherits(Sha224, Sha256)
-
-Sha224.prototype.init = function () {
-  this._a = 0xc1059ed8
-  this._b = 0x367cd507
-  this._c = 0x3070dd17
-  this._d = 0xf70e5939
-  this._e = 0xffc00b31
-  this._f = 0x68581511
-  this._g = 0x64f98fa7
-  this._h = 0xbefa4fa4
-
-  return this
-}
-
-Sha224.prototype._hash = function () {
-  var H = Buffer.allocUnsafe(28)
-
-  H.writeInt32BE(this._a, 0)
-  H.writeInt32BE(this._b, 4)
-  H.writeInt32BE(this._c, 8)
-  H.writeInt32BE(this._d, 12)
-  H.writeInt32BE(this._e, 16)
-  H.writeInt32BE(this._f, 20)
-  H.writeInt32BE(this._g, 24)
-
-  return H
-}
-
-module.exports = Sha224
-
-},{"./hash":129,"./sha256":134,"inherits":121,"safe-buffer":128}],134:[function(require,module,exports){
-/**
- * A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as defined
- * in FIPS 180-2
- * Version 2.2-beta Copyright Angel Marin, Paul Johnston 2000 - 2009.
- * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
- *
- */
-
-var inherits = require('inherits')
-var Hash = require('./hash')
-var Buffer = require('safe-buffer').Buffer
-
-var K = [
-  0x428A2F98, 0x71374491, 0xB5C0FBCF, 0xE9B5DBA5,
-  0x3956C25B, 0x59F111F1, 0x923F82A4, 0xAB1C5ED5,
-  0xD807AA98, 0x12835B01, 0x243185BE, 0x550C7DC3,
-  0x72BE5D74, 0x80DEB1FE, 0x9BDC06A7, 0xC19BF174,
-  0xE49B69C1, 0xEFBE4786, 0x0FC19DC6, 0x240CA1CC,
-  0x2DE92C6F, 0x4A7484AA, 0x5CB0A9DC, 0x76F988DA,
-  0x983E5152, 0xA831C66D, 0xB00327C8, 0xBF597FC7,
-  0xC6E00BF3, 0xD5A79147, 0x06CA6351, 0x14292967,
-  0x27B70A85, 0x2E1B2138, 0x4D2C6DFC, 0x53380D13,
-  0x650A7354, 0x766A0ABB, 0x81C2C92E, 0x92722C85,
-  0xA2BFE8A1, 0xA81A664B, 0xC24B8B70, 0xC76C51A3,
-  0xD192E819, 0xD6990624, 0xF40E3585, 0x106AA070,
-  0x19A4C116, 0x1E376C08, 0x2748774C, 0x34B0BCB5,
-  0x391C0CB3, 0x4ED8AA4A, 0x5B9CCA4F, 0x682E6FF3,
-  0x748F82EE, 0x78A5636F, 0x84C87814, 0x8CC70208,
-  0x90BEFFFA, 0xA4506CEB, 0xBEF9A3F7, 0xC67178F2
-]
-
-var W = new Array(64)
-
-function Sha256 () {
-  this.init()
-
-  this._w = W // new Array(64)
-
-  Hash.call(this, 64, 56)
-}
-
-inherits(Sha256, Hash)
-
-Sha256.prototype.init = function () {
-  this._a = 0x6a09e667
-  this._b = 0xbb67ae85
-  this._c = 0x3c6ef372
-  this._d = 0xa54ff53a
-  this._e = 0x510e527f
-  this._f = 0x9b05688c
-  this._g = 0x1f83d9ab
-  this._h = 0x5be0cd19
-
-  return this
-}
-
-function ch (x, y, z) {
-  return z ^ (x & (y ^ z))
-}
-
-function maj (x, y, z) {
-  return (x & y) | (z & (x | y))
-}
-
-function sigma0 (x) {
-  return (x >>> 2 | x << 30) ^ (x >>> 13 | x << 19) ^ (x >>> 22 | x << 10)
-}
-
-function sigma1 (x) {
-  return (x >>> 6 | x << 26) ^ (x >>> 11 | x << 21) ^ (x >>> 25 | x << 7)
-}
-
-function gamma0 (x) {
-  return (x >>> 7 | x << 25) ^ (x >>> 18 | x << 14) ^ (x >>> 3)
-}
-
-function gamma1 (x) {
-  return (x >>> 17 | x << 15) ^ (x >>> 19 | x << 13) ^ (x >>> 10)
-}
-
-Sha256.prototype._update = function (M) {
-  var W = this._w
-
-  var a = this._a | 0
-  var b = this._b | 0
-  var c = this._c | 0
-  var d = this._d | 0
-  var e = this._e | 0
-  var f = this._f | 0
-  var g = this._g | 0
-  var h = this._h | 0
-
-  for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4)
-  for (; i < 64; ++i) W[i] = (gamma1(W[i - 2]) + W[i - 7] + gamma0(W[i - 15]) + W[i - 16]) | 0
-
-  for (var j = 0; j < 64; ++j) {
-    var T1 = (h + sigma1(e) + ch(e, f, g) + K[j] + W[j]) | 0
-    var T2 = (sigma0(a) + maj(a, b, c)) | 0
-
-    h = g
-    g = f
-    f = e
-    e = (d + T1) | 0
-    d = c
-    c = b
-    b = a
-    a = (T1 + T2) | 0
-  }
-
-  this._a = (a + this._a) | 0
-  this._b = (b + this._b) | 0
-  this._c = (c + this._c) | 0
-  this._d = (d + this._d) | 0
-  this._e = (e + this._e) | 0
-  this._f = (f + this._f) | 0
-  this._g = (g + this._g) | 0
-  this._h = (h + this._h) | 0
-}
-
-Sha256.prototype._hash = function () {
-  var H = Buffer.allocUnsafe(32)
-
-  H.writeInt32BE(this._a, 0)
-  H.writeInt32BE(this._b, 4)
-  H.writeInt32BE(this._c, 8)
-  H.writeInt32BE(this._d, 12)
-  H.writeInt32BE(this._e, 16)
-  H.writeInt32BE(this._f, 20)
-  H.writeInt32BE(this._g, 24)
-  H.writeInt32BE(this._h, 28)
-
-  return H
-}
-
-module.exports = Sha256
-
-},{"./hash":129,"inherits":121,"safe-buffer":128}],135:[function(require,module,exports){
-var inherits = require('inherits')
-var SHA512 = require('./sha512')
-var Hash = require('./hash')
-var Buffer = require('safe-buffer').Buffer
-
-var W = new Array(160)
-
-function Sha384 () {
-  this.init()
-  this._w = W
-
-  Hash.call(this, 128, 112)
-}
-
-inherits(Sha384, SHA512)
-
-Sha384.prototype.init = function () {
-  this._ah = 0xcbbb9d5d
-  this._bh = 0x629a292a
-  this._ch = 0x9159015a
-  this._dh = 0x152fecd8
-  this._eh = 0x67332667
-  this._fh = 0x8eb44a87
-  this._gh = 0xdb0c2e0d
-  this._hh = 0x47b5481d
-
-  this._al = 0xc1059ed8
-  this._bl = 0x367cd507
-  this._cl = 0x3070dd17
-  this._dl = 0xf70e5939
-  this._el = 0xffc00b31
-  this._fl = 0x68581511
-  this._gl = 0x64f98fa7
-  this._hl = 0xbefa4fa4
-
-  return this
-}
-
-Sha384.prototype._hash = function () {
-  var H = Buffer.allocUnsafe(48)
-
-  function writeInt64BE (h, l, offset) {
-    H.writeInt32BE(h, offset)
-    H.writeInt32BE(l, offset + 4)
-  }
-
-  writeInt64BE(this._ah, this._al, 0)
-  writeInt64BE(this._bh, this._bl, 8)
-  writeInt64BE(this._ch, this._cl, 16)
-  writeInt64BE(this._dh, this._dl, 24)
-  writeInt64BE(this._eh, this._el, 32)
-  writeInt64BE(this._fh, this._fl, 40)
-
-  return H
-}
-
-module.exports = Sha384
-
-},{"./hash":129,"./sha512":136,"inherits":121,"safe-buffer":128}],136:[function(require,module,exports){
-var inherits = require('inherits')
-var Hash = require('./hash')
-var Buffer = require('safe-buffer').Buffer
-
-var K = [
-  0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd,
-  0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc,
-  0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019,
-  0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118,
-  0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe,
-  0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2,
-  0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1,
-  0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694,
-  0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3,
-  0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65,
-  0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483,
-  0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5,
-  0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210,
-  0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4,
-  0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725,
-  0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70,
-  0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926,
-  0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df,
-  0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8,
-  0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b,
-  0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001,
-  0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30,
-  0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910,
-  0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8,
-  0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53,
-  0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8,
-  0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb,
-  0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3,
-  0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60,
-  0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec,
-  0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9,
-  0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b,
-  0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207,
-  0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178,
-  0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6,
-  0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b,
-  0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493,
-  0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c,
-  0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a,
-  0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817
-]
-
-var W = new Array(160)
-
-function Sha512 () {
-  this.init()
-  this._w = W
-
-  Hash.call(this, 128, 112)
-}
-
-inherits(Sha512, Hash)
-
-Sha512.prototype.init = function () {
-  this._ah = 0x6a09e667
-  this._bh = 0xbb67ae85
-  this._ch = 0x3c6ef372
-  this._dh = 0xa54ff53a
-  this._eh = 0x510e527f
-  this._fh = 0x9b05688c
-  this._gh = 0x1f83d9ab
-  this._hh = 0x5be0cd19
-
-  this._al = 0xf3bcc908
-  this._bl = 0x84caa73b
-  this._cl = 0xfe94f82b
-  this._dl = 0x5f1d36f1
-  this._el = 0xade682d1
-  this._fl = 0x2b3e6c1f
-  this._gl = 0xfb41bd6b
-  this._hl = 0x137e2179
-
-  return this
-}
-
-function Ch (x, y, z) {
-  return z ^ (x & (y ^ z))
-}
-
-function maj (x, y, z) {
-  return (x & y) | (z & (x | y))
-}
-
-function sigma0 (x, xl) {
-  return (x >>> 28 | xl << 4) ^ (xl >>> 2 | x << 30) ^ (xl >>> 7 | x << 25)
-}
-
-function sigma1 (x, xl) {
-  return (x >>> 14 | xl << 18) ^ (x >>> 18 | xl << 14) ^ (xl >>> 9 | x << 23)
-}
-
-function Gamma0 (x, xl) {
-  return (x >>> 1 | xl << 31) ^ (x >>> 8 | xl << 24) ^ (x >>> 7)
-}
-
-function Gamma0l (x, xl) {
-  return (x >>> 1 | xl << 31) ^ (x >>> 8 | xl << 24) ^ (x >>> 7 | xl << 25)
-}
-
-function Gamma1 (x, xl) {
-  return (x >>> 19 | xl << 13) ^ (xl >>> 29 | x << 3) ^ (x >>> 6)
-}
-
-function Gamma1l (x, xl) {
-  return (x >>> 19 | xl << 13) ^ (xl >>> 29 | x << 3) ^ (x >>> 6 | xl << 26)
-}
-
-function getCarry (a, b) {
-  return (a >>> 0) < (b >>> 0) ? 1 : 0
-}
-
-Sha512.prototype._update = function (M) {
-  var W = this._w
-
-  var ah = this._ah | 0
-  var bh = this._bh | 0
-  var ch = this._ch | 0
-  var dh = this._dh | 0
-  var eh = this._eh | 0
-  var fh = this._fh | 0
-  var gh = this._gh | 0
-  var hh = this._hh | 0
-
-  var al = this._al | 0
-  var bl = this._bl | 0
-  var cl = this._cl | 0
-  var dl = this._dl | 0
-  var el = this._el | 0
-  var fl = this._fl | 0
-  var gl = this._gl | 0
-  var hl = this._hl | 0
-
-  for (var i = 0; i < 32; i += 2) {
-    W[i] = M.readInt32BE(i * 4)
-    W[i + 1] = M.readInt32BE(i * 4 + 4)
-  }
-  for (; i < 160; i += 2) {
-    var xh = W[i - 15 * 2]
-    var xl = W[i - 15 * 2 + 1]
-    var gamma0 = Gamma0(xh, xl)
-    var gamma0l = Gamma0l(xl, xh)
-
-    xh = W[i - 2 * 2]
-    xl = W[i - 2 * 2 + 1]
-    var gamma1 = Gamma1(xh, xl)
-    var gamma1l = Gamma1l(xl, xh)
-
-    // W[i] = gamma0 + W[i - 7] + gamma1 + W[i - 16]
-    var Wi7h = W[i - 7 * 2]
-    var Wi7l = W[i - 7 * 2 + 1]
-
-    var Wi16h = W[i - 16 * 2]
-    var Wi16l = W[i - 16 * 2 + 1]
-
-    var Wil = (gamma0l + Wi7l) | 0
-    var Wih = (gamma0 + Wi7h + getCarry(Wil, gamma0l)) | 0
-    Wil = (Wil + gamma1l) | 0
-    Wih = (Wih + gamma1 + getCarry(Wil, gamma1l)) | 0
-    Wil = (Wil + Wi16l) | 0
-    Wih = (Wih + Wi16h + getCarry(Wil, Wi16l)) | 0
-
-    W[i] = Wih
-    W[i + 1] = Wil
-  }
-
-  for (var j = 0; j < 160; j += 2) {
-    Wih = W[j]
-    Wil = W[j + 1]
-
-    var majh = maj(ah, bh, ch)
-    var majl = maj(al, bl, cl)
-
-    var sigma0h = sigma0(ah, al)
-    var sigma0l = sigma0(al, ah)
-    var sigma1h = sigma1(eh, el)
-    var sigma1l = sigma1(el, eh)
-
-    // t1 = h + sigma1 + ch + K[j] + W[j]
-    var Kih = K[j]
-    var Kil = K[j + 1]
-
-    var chh = Ch(eh, fh, gh)
-    var chl = Ch(el, fl, gl)
-
-    var t1l = (hl + sigma1l) | 0
-    var t1h = (hh + sigma1h + getCarry(t1l, hl)) | 0
-    t1l = (t1l + chl) | 0
-    t1h = (t1h + chh + getCarry(t1l, chl)) | 0
-    t1l = (t1l + Kil) | 0
-    t1h = (t1h + Kih + getCarry(t1l, Kil)) | 0
-    t1l = (t1l + Wil) | 0
-    t1h = (t1h + Wih + getCarry(t1l, Wil)) | 0
-
-    // t2 = sigma0 + maj
-    var t2l = (sigma0l + majl) | 0
-    var t2h = (sigma0h + majh + getCarry(t2l, sigma0l)) | 0
-
-    hh = gh
-    hl = gl
-    gh = fh
-    gl = fl
-    fh = eh
-    fl = el
-    el = (dl + t1l) | 0
-    eh = (dh + t1h + getCarry(el, dl)) | 0
-    dh = ch
-    dl = cl
-    ch = bh
-    cl = bl
-    bh = ah
-    bl = al
-    al = (t1l + t2l) | 0
-    ah = (t1h + t2h + getCarry(al, t1l)) | 0
-  }
-
-  this._al = (this._al + al) | 0
-  this._bl = (this._bl + bl) | 0
-  this._cl = (this._cl + cl) | 0
-  this._dl = (this._dl + dl) | 0
-  this._el = (this._el + el) | 0
-  this._fl = (this._fl + fl) | 0
-  this._gl = (this._gl + gl) | 0
-  this._hl = (this._hl + hl) | 0
-
-  this._ah = (this._ah + ah + getCarry(this._al, al)) | 0
-  this._bh = (this._bh + bh + getCarry(this._bl, bl)) | 0
-  this._ch = (this._ch + ch + getCarry(this._cl, cl)) | 0
-  this._dh = (this._dh + dh + getCarry(this._dl, dl)) | 0
-  this._eh = (this._eh + eh + getCarry(this._el, el)) | 0
-  this._fh = (this._fh + fh + getCarry(this._fl, fl)) | 0
-  this._gh = (this._gh + gh + getCarry(this._gl, gl)) | 0
-  this._hh = (this._hh + hh + getCarry(this._hl, hl)) | 0
-}
-
-Sha512.prototype._hash = function () {
-  var H = Buffer.allocUnsafe(64)
-
-  function writeInt64BE (h, l, offset) {
-    H.writeInt32BE(h, offset)
-    H.writeInt32BE(l, offset + 4)
-  }
-
-  writeInt64BE(this._ah, this._al, 0)
-  writeInt64BE(this._bh, this._bl, 8)
-  writeInt64BE(this._ch, this._cl, 16)
-  writeInt64BE(this._dh, this._dl, 24)
-  writeInt64BE(this._eh, this._el, 32)
-  writeInt64BE(this._fh, this._fl, 40)
-  writeInt64BE(this._gh, this._gl, 48)
-  writeInt64BE(this._hh, this._hl, 56)
-
-  return H
-}
-
-module.exports = Sha512
-
-},{"./hash":129,"inherits":121,"safe-buffer":128}],137:[function(require,module,exports){
-var native = require('./native')
-
-function getTypeName (fn) {
-  return fn.name || fn.toString().match(/function (.*?)\s*\(/)[1]
-}
-
-function getValueTypeName (value) {
-  return native.Nil(value) ? '' : getTypeName(value.constructor)
-}
-
-function getValue (value) {
-  if (native.Function(value)) return ''
-  if (native.String(value)) return JSON.stringify(value)
-  if (value && native.Object(value)) return ''
-  return value
-}
-
-function tfJSON (type) {
-  if (native.Function(type)) return type.toJSON ? type.toJSON() : getTypeName(type)
-  if (native.Array(type)) return 'Array'
-  if (type && native.Object(type)) return 'Object'
-
-  return type !== undefined ? type : ''
-}
-
-function tfErrorString (type, value, valueTypeName) {
-  var valueJson = getValue(value)
-
-  return 'Expected ' + tfJSON(type) + ', got' +
-    (valueTypeName !== '' ? ' ' + valueTypeName : '') +
-    (valueJson !== '' ? ' ' + valueJson : '')
-}
-
-function TfTypeError (type, value, valueTypeName) {
-  valueTypeName = valueTypeName || getValueTypeName(value)
-  this.message = tfErrorString(type, value, valueTypeName)
-
-  Error.captureStackTrace(this, TfTypeError)
-  this.__type = type
-  this.__value = value
-  this.__valueTypeName = valueTypeName
-}
-
-TfTypeError.prototype = Object.create(Error.prototype)
-TfTypeError.prototype.constructor = TfTypeError
-
-function tfPropertyErrorString (type, label, name, value, valueTypeName) {
-  var description = '" of type '
-  if (label === 'key') description = '" with key type '
-
-  return tfErrorString('property "' + tfJSON(name) + description + tfJSON(type), value, valueTypeName)
-}
-
-function TfPropertyTypeError (type, property, label, value, valueTypeName) {
-  if (type) {
-    valueTypeName = valueTypeName || getValueTypeName(value)
-    this.message = tfPropertyErrorString(type, label, property, value, valueTypeName)
-  } else {
-    this.message = 'Unexpected property "' + property + '"'
-  }
-
-  Error.captureStackTrace(this, TfTypeError)
-  this.__label = label
-  this.__property = property
-  this.__type = type
-  this.__value = value
-  this.__valueTypeName = valueTypeName
-}
-
-TfPropertyTypeError.prototype = Object.create(Error.prototype)
-TfPropertyTypeError.prototype.constructor = TfTypeError
-
-function tfCustomError (expected, actual) {
-  return new TfTypeError(expected, {}, actual)
-}
-
-function tfSubError (e, property, label) {
-  // sub child?
-  if (e instanceof TfPropertyTypeError) {
-    property = property + '.' + e.__property
-
-    e = new TfPropertyTypeError(
-      e.__type, property, e.__label, e.__value, e.__valueTypeName
-    )
-
-  // child?
-  } else if (e instanceof TfTypeError) {
-    e = new TfPropertyTypeError(
-      e.__type, property, label, e.__value, e.__valueTypeName
-    )
-  }
-
-  Error.captureStackTrace(e)
-  return e
-}
-
-module.exports = {
-  TfTypeError: TfTypeError,
-  TfPropertyTypeError: TfPropertyTypeError,
-  tfCustomError: tfCustomError,
-  tfSubError: tfSubError,
-  tfJSON: tfJSON,
-  getValueTypeName: getValueTypeName
-}
-
-},{"./native":140}],138:[function(require,module,exports){
-(function (Buffer){
-var NATIVE = require('./native')
-var ERRORS = require('./errors')
-
-function _Buffer (value) {
-  return Buffer.isBuffer(value)
-}
-
-function Hex (value) {
-  return typeof value === 'string' && /^([0-9a-f]{2})+$/i.test(value)
-}
-
-function _LengthN (type, length) {
-  var name = type.toJSON()
-
-  function Length (value) {
-    if (!type(value)) return false
-    if (value.length === length) return true
-
-    throw ERRORS.tfCustomError(name + '(Length: ' + length + ')', name + '(Length: ' + value.length + ')')
-  }
-  Length.toJSON = function () { return name }
-
-  return Length
-}
-
-var _ArrayN = _LengthN.bind(null, NATIVE.Array)
-var _BufferN = _LengthN.bind(null, _Buffer)
-var _HexN = _LengthN.bind(null, Hex)
-var _StringN = _LengthN.bind(null, NATIVE.String)
-
-var UINT53_MAX = Math.pow(2, 53) - 1
-
-function Finite (value) {
-  return typeof value === 'number' && isFinite(value)
-}
-function Int8 (value) { return ((value << 24) >> 24) === value }
-function Int16 (value) { return ((value << 16) >> 16) === value }
-function Int32 (value) { return (value | 0) === value }
-function UInt8 (value) { return (value & 0xff) === value }
-function UInt16 (value) { return (value & 0xffff) === value }
-function UInt32 (value) { return (value >>> 0) === value }
-function UInt53 (value) {
-  return typeof value === 'number' &&
-    value >= 0 &&
-    value <= UINT53_MAX &&
-    Math.floor(value) === value
-}
-
-var types = {
-  ArrayN: _ArrayN,
-  Buffer: _Buffer,
-  BufferN: _BufferN,
-  Finite: Finite,
-  Hex: Hex,
-  HexN: _HexN,
-  Int8: Int8,
-  Int16: Int16,
-  Int32: Int32,
-  StringN: _StringN,
-  UInt8: UInt8,
-  UInt16: UInt16,
-  UInt32: UInt32,
-  UInt53: UInt53
-}
-
-for (var typeName in types) {
-  types[typeName].toJSON = function (t) {
-    return t
-  }.bind(null, typeName)
-}
-
-module.exports = types
-
-}).call(this,{"isBuffer":require("../../../../../.nvm/versions/node/v6.0.0/lib/node_modules/browserify/node_modules/is-buffer/index.js")})
-},{"../../../../../.nvm/versions/node/v6.0.0/lib/node_modules/browserify/node_modules/is-buffer/index.js":10,"./errors":137,"./native":140}],139:[function(require,module,exports){
-var ERRORS = require('./errors')
-var NATIVE = require('./native')
-
-// short-hand
-var tfJSON = ERRORS.tfJSON
-var TfTypeError = ERRORS.TfTypeError
-var TfPropertyTypeError = ERRORS.TfPropertyTypeError
-var tfSubError = ERRORS.tfSubError
-var getValueTypeName = ERRORS.getValueTypeName
-
-var TYPES = {
-  arrayOf: function arrayOf (type) {
-    type = compile(type)
-
-    function _arrayOf (array, strict) {
-      if (!NATIVE.Array(array)) return false
-      if (NATIVE.Nil(array)) return false
-
-      return array.every(function (value, i) {
-        try {
-          return typeforce(type, value, strict)
-        } catch (e) {
-          throw tfSubError(e, i)
-        }
-      })
-    }
-    _arrayOf.toJSON = function () { return '[' + tfJSON(type) + ']' }
-
-    return _arrayOf
-  },
-
-  maybe: function maybe (type) {
-    type = compile(type)
-
-    function _maybe (value, strict) {
-      return NATIVE.Nil(value) || type(value, strict, maybe)
-    }
-    _maybe.toJSON = function () { return '?' + tfJSON(type) }
-
-    return _maybe
-  },
-
-  map: function map (propertyType, propertyKeyType) {
-    propertyType = compile(propertyType)
-    if (propertyKeyType) propertyKeyType = compile(propertyKeyType)
-
-    function _map (value, strict) {
-      if (!NATIVE.Object(value)) return false
-      if (NATIVE.Nil(value)) return false
-
-      for (var propertyName in value) {
-        try {
-          if (propertyKeyType) {
-            typeforce(propertyKeyType, propertyName, strict)
-          }
-        } catch (e) {
-          throw tfSubError(e, propertyName, 'key')
-        }
-
-        try {
-          var propertyValue = value[propertyName]
-          typeforce(propertyType, propertyValue, strict)
-        } catch (e) {
-          throw tfSubError(e, propertyName)
-        }
-      }
-
-      return true
-    }
-
-    if (propertyKeyType) {
-      _map.toJSON = function () {
-        return '{' + tfJSON(propertyKeyType) + ': ' + tfJSON(propertyType) + '}'
-      }
-    } else {
-      _map.toJSON = function () { return '{' + tfJSON(propertyType) + '}' }
-    }
-
-    return _map
-  },
-
-  object: function object (uncompiled) {
-    var type = {}
-
-    for (var typePropertyName in uncompiled) {
-      type[typePropertyName] = compile(uncompiled[typePropertyName])
-    }
-
-    function _object (value, strict) {
-      if (!NATIVE.Object(value)) return false
-      if (NATIVE.Nil(value)) return false
-
-      var propertyName
-
-      try {
-        for (propertyName in type) {
-          var propertyType = type[propertyName]
-          var propertyValue = value[propertyName]
-
-          typeforce(propertyType, propertyValue, strict)
-        }
-      } catch (e) {
-        throw tfSubError(e, propertyName)
-      }
-
-      if (strict) {
-        for (propertyName in value) {
-          if (type[propertyName]) continue
-
-          throw new TfPropertyTypeError(undefined, propertyName)
-        }
-      }
-
-      return true
-    }
-    _object.toJSON = function () { return tfJSON(type) }
-
-    return _object
-  },
-
-  oneOf: function oneOf () {
-    var types = [].slice.call(arguments).map(compile)
-
-    function _oneOf (value, strict) {
-      return types.some(function (type) {
-        try {
-          return typeforce(type, value, strict)
-        } catch (e) {
-          return false
-        }
-      })
-    }
-    _oneOf.toJSON = function () { return types.map(tfJSON).join('|') }
-
-    return _oneOf
-  },
-
-  quacksLike: function quacksLike (type) {
-    function _quacksLike (value) {
-      return type === getValueTypeName(value)
-    }
-    _quacksLike.toJSON = function () { return type }
-
-    return _quacksLike
-  },
-
-  tuple: function tuple () {
-    var types = [].slice.call(arguments).map(compile)
-
-    function _tuple (values, strict) {
-      if (NATIVE.Nil(values)) return false
-      if (NATIVE.Nil(values.length)) return false
-      if (strict && (values.length !== types.length)) return false
-
-      return types.every(function (type, i) {
-        try {
-          return typeforce(type, values[i], strict)
-        } catch (e) {
-          throw tfSubError(e, i)
-        }
-      })
-    }
-    _tuple.toJSON = function () { return '(' + types.map(tfJSON).join(', ') + ')' }
-
-    return _tuple
-  },
-
-  value: function value (expected) {
-    function _value (actual) {
-      return actual === expected
-    }
-    _value.toJSON = function () { return expected }
-
-    return _value
-  }
-}
-
-function compile (type) {
-  if (NATIVE.String(type)) {
-    if (type[0] === '?') return TYPES.maybe(type.slice(1))
-
-    return NATIVE[type] || TYPES.quacksLike(type)
-  } else if (type && NATIVE.Object(type)) {
-    if (NATIVE.Array(type)) return TYPES.arrayOf(type[0])
-
-    return TYPES.object(type)
-  } else if (NATIVE.Function(type)) {
-    return type
-  }
-
-  return TYPES.value(type)
-}
-
-function typeforce (type, value, strict, surrogate) {
-  if (NATIVE.Function(type)) {
-    if (type(value, strict)) return true
-
-    throw new TfTypeError(surrogate || type, value)
-  }
-
-  // JIT
-  return typeforce(compile(type), value, strict)
-}
-
-// assign types to typeforce function
-for (var typeName in NATIVE) {
-  typeforce[typeName] = NATIVE[typeName]
-}
-
-for (typeName in TYPES) {
-  typeforce[typeName] = TYPES[typeName]
-}
-
-var EXTRA = require('./extra')
-for (typeName in EXTRA) {
-  typeforce[typeName] = EXTRA[typeName]
-}
-
-// async wrapper
-function __async (type, value, strict, callback) {
-  // default to falsy strict if using shorthand overload
-  if (typeof strict === 'function') return __async(type, value, false, strict)
-
-  try {
-    typeforce(type, value, strict)
-  } catch (e) {
-    return callback(e)
-  }
-
-  callback()
-}
-
-typeforce.async = __async
-typeforce.compile = compile
-typeforce.TfTypeError = TfTypeError
-typeforce.TfPropertyTypeError = TfPropertyTypeError
-
-module.exports = typeforce
-
-},{"./errors":137,"./extra":138,"./native":140}],140:[function(require,module,exports){
-var types = {
-  Array: function (value) { return value !== null && value !== undefined && value.constructor === Array },
-  Boolean: function (value) { return typeof value === 'boolean' },
-  Function: function (value) { return typeof value === 'function' },
-  Nil: function (value) { return value === undefined || value === null },
-  Number: function (value) { return typeof value === 'number' },
-  Object: function (value) { return typeof value === 'object' },
-  String: function (value) { return typeof value === 'string' },
-  '': function () { return true }
-}
-
-// TODO: deprecate
-types.Null = types.Nil
-
-for (var typeName in types) {
-  types[typeName].toJSON = function (t) {
-    return t
-  }.bind(null, typeName)
-}
-
-module.exports = types
-
-},{}],141:[function(require,module,exports){
-(function (Buffer){
-'use strict'
-
-// Number.MAX_SAFE_INTEGER
-var MAX_SAFE_INTEGER = 9007199254740991
-
-function checkUInt53 (n) {
-  if (n < 0 || n > MAX_SAFE_INTEGER || n % 1 !== 0) throw new RangeError('value out of range')
-}
-
-function encode (number, buffer, offset) {
-  checkUInt53(number)
-
-  if (!buffer) buffer = new Buffer(encodingLength(number))
-  if (!Buffer.isBuffer(buffer)) throw new TypeError('buffer must be a Buffer instance')
-  if (!offset) offset = 0
-
-  // 8 bit
-  if (number < 0xfd) {
-    buffer.writeUInt8(number, offset)
-    encode.bytes = 1
-
-  // 16 bit
-  } else if (number <= 0xffff) {
-    buffer.writeUInt8(0xfd, offset)
-    buffer.writeUInt16LE(number, offset + 1)
-    encode.bytes = 3
-
-  // 32 bit
-  } else if (number <= 0xffffffff) {
-    buffer.writeUInt8(0xfe, offset)
-    buffer.writeUInt32LE(number, offset + 1)
-    encode.bytes = 5
-
-  // 64 bit
-  } else {
-    buffer.writeUInt8(0xff, offset)
-    buffer.writeUInt32LE(number >>> 0, offset + 1)
-    buffer.writeUInt32LE((number / 0x100000000) | 0, offset + 5)
-    encode.bytes = 9
-  }
-
-  return buffer
-}
-
-function decode (buffer, offset) {
-  if (!Buffer.isBuffer(buffer)) throw new TypeError('buffer must be a Buffer instance')
-  if (!offset) offset = 0
-
-  var first = buffer.readUInt8(offset)
-
-  // 8 bit
-  if (first < 0xfd) {
-    decode.bytes = 1
-    return first
-
-  // 16 bit
-  } else if (first === 0xfd) {
-    decode.bytes = 3
-    return buffer.readUInt16LE(offset + 1)
-
-  // 32 bit
-  } else if (first === 0xfe) {
-    decode.bytes = 5
-    return buffer.readUInt32LE(offset + 1)
-
-  // 64 bit
-  } else {
-    decode.bytes = 9
-    var lo = buffer.readUInt32LE(offset + 1)
-    var hi = buffer.readUInt32LE(offset + 5)
-    var number = hi * 0x0100000000 + lo
-    checkUInt53(number)
-
-    return number
-  }
-}
-
-function encodingLength (number) {
-  checkUInt53(number)
-
-  return (
-    number < 0xfd ? 1
-  : number <= 0xffff ? 3
-  : number <= 0xffffffff ? 5
-  : 9
-  )
-}
-
-module.exports = { encode: encode, decode: decode, encodingLength: encodingLength }
-
-}).call(this,require("buffer").Buffer)
-},{"buffer":5}],142:[function(require,module,exports){
-(function (Buffer){
-var bs58check = require('bs58check')
-
-function decodeRaw (buffer, version) {
-  // check version only if defined
-  if (version !== undefined && buffer[0] !== version) throw new Error('Invalid network version')
-
-  // uncompressed
-  if (buffer.length === 33) {
-    return {
-      version: buffer[0],
-      privateKey: buffer.slice(1, 33),
-      compressed: false
-    }
-  }
-
-  // invalid length
-  if (buffer.length !== 34) throw new Error('Invalid WIF length')
-
-  // invalid compression flag
-  if (buffer[33] !== 0x01) throw new Error('Invalid compression flag')
-
-  return {
-    version: buffer[0],
-    privateKey: buffer.slice(1, 33),
-    compressed: true
-  }
-}
-
-function encodeRaw (version, privateKey, compressed) {
-  var result = new Buffer(compressed ? 34 : 33)
-
-  result.writeUInt8(version, 0)
-  privateKey.copy(result, 1)
-
-  if (compressed) {
-    result[33] = 0x01
-  }
-
-  return result
-}
-
-function decode (string, version) {
-  return decodeRaw(bs58check.decode(string), version)
-}
-
-function encode (version, privateKey, compressed) {
-  if (typeof version === 'number') return bs58check.encode(encodeRaw(version, privateKey, compressed))
-
-  return bs58check.encode(
-    encodeRaw(
-      version.version,
-      version.privateKey,
-      version.compressed
-    )
-  )
-}
-
-module.exports = {
-  decode: decode,
-  decodeRaw: decodeRaw,
-  encode: encode,
-  encodeRaw: encodeRaw
-}
-
-}).call(this,require("buffer").Buffer)
-},{"bs58check":85,"buffer":5}]},{},[34])(34)
-});</script>
-        <script>bitcoinjs.bitcoin.networks.shadow = {
-  messagePrefix: 'unused',
-  bip32: {
-    public: 0xEE80286A,
-    private: 0xEE8031E8
-  },
-  pubKeyHash: 0x3f,
-  scriptHash: 0x7d,
-  wif: 0xbf
-};
-
-bitcoinjs.bitcoin.networks.shadowtn = {
-  messagePrefix: 'unused',
-  bip32: {
-    public: 0x76C0FDFB,
-    private: 0x76C1077A
-  },
-  pubKeyHash: 0x7f,
-  scriptHash: 0xc4,
-  wif: 0xff
-};
-
-bitcoinjs.bitcoin.networks.clam = {
-  messagePrefix: 'unused',
-  bip32: {
-    public: 0xa8c26d64,
-    private: 0xa8c17826
-  },
-  pubKeyHash: 0x89,
-  scriptHash: 0x00, // TODO set this correctly
-  wif: 0x85
-};
-
-bitcoinjs.bitcoin.networks.crown = {
-  messagePrefix: 'unused',
-  bip32: {
-    public: 0x0488b21e,
-    private: 0x0488ade4
-  },
-  pubKeyHash: 0x00,
-  scriptHash: 0x05,
-  wif: 0x80
-};
-
-bitcoinjs.bitcoin.networks.dash = {
-  messagePrefix: 'unused',
-  bip32: {
-    public: 0x0488b21e,
-    private: 0x0488ade4
-  },
-  pubKeyHash: 0x4c,
-  scriptHash: 0x10,
-  wif: 0xcc
-};
-
-bitcoinjs.bitcoin.networks.maza = {
-  messagePrefix: 'unused',
-  bip32: {
-    public: 0x0488b21e,
-    private: 0x0488ade4
-  },
-  pubKeyHash: 0x32,
-  scriptHash: 0x09,
-  wif: 0xe0
-};
-
-bitcoinjs.bitcoin.networks.dashtn = {
-  messagePrefix: 'unused',
-  bip32: {
-    public: 0x043587cf,
-    private: 0x04358394
-  },
-  pubKeyHash: 0x8c,
-  scriptHash: 0x13,
-  wif: 0xef
-};
-
-bitcoinjs.bitcoin.networks.game = {
-  messagePrefix: 'unused',
-  bip32: {
-    public: 0x0488b21e,
-    private: 0x0488ade4
-  },
-  pubKeyHash: 0x26,
-  scriptHash: 0x05,
-  wif: 0xa6
-};
-
-bitcoinjs.bitcoin.networks.namecoin = {
-  messagePrefix: 'unused',
-  bip32: {
-    public: 0x0488b21e,
-    private: 0x0488ade4
-  },
-  pubKeyHash: 0x34,
-  scriptHash: 0x00, // TODO set this correctly
-  wif: 0x80
-};
-
-bitcoinjs.bitcoin.networks.peercoin = {
-  messagePrefix: 'unused',
-  bip32: {
-    public: 0x0488b21e,
-    private: 0x0488ade4
-  },
-  pubKeyHash: 0x37,
-  scriptHash: 0x00, // TODO set this correctly
-  wif: 0xb7
-};
-
-bitcoinjs.bitcoin.networks.axe = {
-  messagePrefix: 'unused',
-  bip32: {
-    public: 0x0488b21e,
-    private: 0x0488ade4
-  },
-  pubKeyHash: 0x4B,
-  scriptHash: 0xCB, // TODO set this correctly
-  wif: 0xCB
-};
-
-bitcoinjs.bitcoin.networks.slimcoin = {
-  messagePrefix: 'unused',
-  bip32: {
-    public: 0xef6adf10,
-    private: 0xef69ea80
-  },
-  pubKeyHash: 0x3f,
-  scriptHash: 0x7d,
-  wif: 0x46
-};
-
-bitcoinjs.bitcoin.networks.slimcointn = {
-  messagePrefix: 'unused',
-  bip32: {
-    public: 0x043587CF,
-    private: 0x04358394
-  },
-  pubKeyHash: 0x6f,
-  scriptHash: 0xc4,
-  wif: 0x57
-};
-
-bitcoinjs.bitcoin.networks.dogecoin = {
-  messagePrefix: '\x19Dogecoin Signed Message:\n',
-  bip32: {
-    public: 0x02facafd,
-    private: 0x02fac398
-  },
-  pubKeyHash: 0x1e,
-  scriptHash: 0x16,
-  wif: 0x9e
-};
-
-bitcoinjs.bitcoin.networks.viacoin = {
-  messagePrefix: '\x18Viacoin Signed Message:\n',
-  bip32: {
-    public: 0x0488b21e,
-    private: 0x0488ade4
-  },
-  pubKeyHash: 0x47,
-  scriptHash: 0x21,
-  wif: 0xc7
-};
-
-bitcoinjs.bitcoin.networks.viacointestnet = {
-  messagePrefix: '\x18Viacoin Signed Message:\n',
-  bip32: {
-    public: 0x043587cf,
-    private: 0x04358394
-  },
-  pubKeyHash: 0x7f,
-  scriptHash: 0xc4,
-  wif: 0xff
-};
-
-bitcoinjs.bitcoin.networks.gamerscoin = {
-  messagePrefix: '\x19Gamerscoin Signed Message:\n',
-  bip32: {
-    public: 0x019da462,
-    private: 0x019d9cfe
-  },
-  pubKeyHash: 0x26,
-  scriptHash: 0x05,
-  wif: 0xA6
-};
-
-bitcoinjs.bitcoin.networks.jumbucks = {
-  messagePrefix: '\x19Jumbucks Signed Message:\n',
-  bip32: {
-    public: 0x037a689a,
-    private: 0x037a6460
-  },
-  pubKeyHash: 0x2b,
-  scriptHash: 0x05,
-  wif: 0xab
-};
-
-bitcoinjs.bitcoin.networks.zetacoin = {
-  messagePrefix: '\x18Zetacoin Signed Message:\n',
-  bip32: {
-    public: 0x0488b21e,
-    private: 0x0488ade4
-  },
-  pubKeyHash: 0x50,
-  scriptHash: 0x09,
-  wif: 0xe0
-};
-
-bitcoinjs.bitcoin.networks.myriadcoin = {
-  messagePrefix: 'unused',
-  bip32: {
-    public: 0x0488b21e,
-    private: 0x0488ade4
-  },
-  pubKeyHash: 0x32,
-  scriptHash: 0x00, // TODO set this correctly
-  wif: 0xb2
-};
-
-
-bitcoinjs.bitcoin.networks.onixcoin = {
-    messagePrefix: 'unused',
-    bip32: {
-      public: 0x049d7cb2,
-      private: 0x049d7878
-    },
-    pubKeyHash: 0x4B,
-    scriptHash: 0x05,
-    wif: 0x80
-};
-
-bitcoinjs.bitcoin.networks.pivx = {
-  messagePrefix: 'unused',
-  bip32: {
-    public: 0x022d2533,
-    private: 0x0221312b
-  },
-  pubKeyHash: 0x1e,
-  scriptHash: 0x0d,
-  wif: 0xd4
-};
-
-bitcoinjs.bitcoin.networks.pivxtestnet = {
-  messagePrefix: 'unused',
-  bip32: {
-    public: 0x3a8061a0,
-    private: 0x3a805837
-  },
-  pubKeyHash: 0x8b,
-  scriptHash: 0x13,
-  wif: 0xef
-};
-
-bitcoinjs.bitcoin.networks.fujicoin = {
-  messagePrefix: '\x19FujiCoin Signed Message:\n',
-  bip32: {
-    public: 0x0488b21e,
-    private: 0x0488ade4
-  },
-  pubKeyHash: 0x24,
-  scriptHash: 0x10,
-  wif: 0xa4
-};
-
-bitcoinjs.bitcoin.networks.nubits = {
-  messagePrefix: '\x18Nu Signed Message:\n',
-  bip32: {
-    public: 0x0488b21e,
-    private: 0x0488ade4
-  },
-  pubKeyHash: 0x19,
-  scriptHash: 0x1a,
-  wif: 0x96,
-};
-
-bitcoinjs.bitcoin.networks.bgold = {
-  messagePrefix: 'unused',
-    bip32: {
-      public: 0x0488b21e,
-      private: 0x0488ade4
-    },
-    pubKeyHash: 38,
-    scriptHash: 23,
-    wif: 128
-};
-
-bitcoinjs.bitcoin.networks.bitcoinCashBitbpay = {
-    messagePrefix: '\x18Bitcoin Signed Message:\n',
-    bip32: {
-      public: 0x0488b21e,
-      private: 0x0488ade4
-    },
-    pubKeyHash: 0x1c,
-    scriptHash: 0x28,
-    wif: 0x80
-};
-
-bitcoinjs.bitcoin.networks.monacoin = {
-    messagePrefix: '\x18Monacoin Signed Message:\n',
-    bip32: {
-      public: 0x0488b21e,
-      private: 0x0488ade4
-    },
-    pubKeyHash: 0x32,
-    scriptHash: 0x37,
-    wif: 0xb0
-};
-
-bitcoinjs.bitcoin.networks.litecoinXprv = {
-    messagePrefix: '\x19Litecoin Signed Message:\n',
-    bip32: {
-      public: 0x0488b21e,
-      private: 0x0488ade4,
-    },
-    pubKeyHash: 0x30,
-    scriptHash: 0x32,
-    wif: 0xb0
-};
-
-bitcoinjs.bitcoin.networks.komodo = {
-  messagePrefix: '\x18Komodo Signed Message:\n',
-  bip32: {
-    public: 0x0488B21E,
-    private: 0x0488ADE4
-  },
-  pubKeyHash: 0x3c,
-  scriptHash: 0x55,
-  wif: 0xbc
-};
-</script>
-        <script>(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.bitcoinjsBip38 = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
-var asn1 = exports;
-
-asn1.bignum = require('bn.js');
-
-asn1.define = require('./asn1/api').define;
-asn1.base = require('./asn1/base');
-asn1.constants = require('./asn1/constants');
-asn1.decoders = require('./asn1/decoders');
-asn1.encoders = require('./asn1/encoders');
-
-},{"./asn1/api":2,"./asn1/base":4,"./asn1/constants":8,"./asn1/decoders":10,"./asn1/encoders":13,"bn.js":17}],2:[function(require,module,exports){
-var asn1 = require('../asn1');
-var inherits = require('inherits');
-
-var api = exports;
-
-api.define = function define(name, body) {
-  return new Entity(name, body);
-};
-
-function Entity(name, body) {
-  this.name = name;
-  this.body = body;
-
-  this.decoders = {};
-  this.encoders = {};
-};
-
-Entity.prototype._createNamed = function createNamed(base) {
-  var named;
-  try {
-    named = require('vm').runInThisContext(
-      '(function ' + this.name + '(entity) {\n' +
-      '  this._initNamed(entity);\n' +
-      '})'
-    );
-  } catch (e) {
-    named = function (entity) {
-      this._initNamed(entity);
-    };
-  }
-  inherits(named, base);
-  named.prototype._initNamed = function initnamed(entity) {
-    base.call(this, entity);
-  };
-
-  return new named(this);
-};
-
-Entity.prototype._getDecoder = function _getDecoder(enc) {
-  enc = enc || 'der';
-  // Lazily create decoder
-  if (!this.decoders.hasOwnProperty(enc))
-    this.decoders[enc] = this._createNamed(asn1.decoders[enc]);
-  return this.decoders[enc];
-};
-
-Entity.prototype.decode = function decode(data, enc, options) {
-  return this._getDecoder(enc).decode(data, options);
-};
-
-Entity.prototype._getEncoder = function _getEncoder(enc) {
-  enc = enc || 'der';
-  // Lazily create encoder
-  if (!this.encoders.hasOwnProperty(enc))
-    this.encoders[enc] = this._createNamed(asn1.encoders[enc]);
-  return this.encoders[enc];
-};
-
-Entity.prototype.encode = function encode(data, enc, /* internal */ reporter) {
-  return this._getEncoder(enc).encode(data, reporter);
-};
-
-},{"../asn1":1,"inherits":95,"vm":149}],3:[function(require,module,exports){
-var inherits = require('inherits');
-var Reporter = require('../base').Reporter;
-var Buffer = require('buffer').Buffer;
-
-function DecoderBuffer(base, options) {
-  Reporter.call(this, options);
-  if (!Buffer.isBuffer(base)) {
-    this.error('Input not Buffer');
-    return;
-  }
-
-  this.base = base;
-  this.offset = 0;
-  this.length = base.length;
-}
-inherits(DecoderBuffer, Reporter);
-exports.DecoderBuffer = DecoderBuffer;
-
-DecoderBuffer.prototype.save = function save() {
-  return { offset: this.offset, reporter: Reporter.prototype.save.call(this) };
-};
-
-DecoderBuffer.prototype.restore = function restore(save) {
-  // Return skipped data
-  var res = new DecoderBuffer(this.base);
-  res.offset = save.offset;
-  res.length = this.offset;
-
-  this.offset = save.offset;
-  Reporter.prototype.restore.call(this, save.reporter);
-
-  return res;
-};
-
-DecoderBuffer.prototype.isEmpty = function isEmpty() {
-  return this.offset === this.length;
-};
-
-DecoderBuffer.prototype.readUInt8 = function readUInt8(fail) {
-  if (this.offset + 1 <= this.length)
-    return this.base.readUInt8(this.offset++, true);
-  else
-    return this.error(fail || 'DecoderBuffer overrun');
-}
-
-DecoderBuffer.prototype.skip = function skip(bytes, fail) {
-  if (!(this.offset + bytes <= this.length))
-    return this.error(fail || 'DecoderBuffer overrun');
-
-  var res = new DecoderBuffer(this.base);
-
-  // Share reporter state
-  res._reporterState = this._reporterState;
-
-  res.offset = this.offset;
-  res.length = this.offset + bytes;
-  this.offset += bytes;
-  return res;
-}
-
-DecoderBuffer.prototype.raw = function raw(save) {
-  return this.base.slice(save ? save.offset : this.offset, this.length);
-}
-
-function EncoderBuffer(value, reporter) {
-  if (Array.isArray(value)) {
-    this.length = 0;
-    this.value = value.map(function(item) {
-      if (!(item instanceof EncoderBuffer))
-        item = new EncoderBuffer(item, reporter);
-      this.length += item.length;
-      return item;
-    }, this);
-  } else if (typeof value === 'number') {
-    if (!(0 <= value && value <= 0xff))
-      return reporter.error('non-byte EncoderBuffer value');
-    this.value = value;
-    this.length = 1;
-  } else if (typeof value === 'string') {
-    this.value = value;
-    this.length = Buffer.byteLength(value);
-  } else if (Buffer.isBuffer(value)) {
-    this.value = value;
-    this.length = value.length;
-  } else {
-    return reporter.error('Unsupported type: ' + typeof value);
-  }
-}
-exports.EncoderBuffer = EncoderBuffer;
-
-EncoderBuffer.prototype.join = function join(out, offset) {
-  if (!out)
-    out = new Buffer(this.length);
-  if (!offset)
-    offset = 0;
-
-  if (this.length === 0)
-    return out;
-
-  if (Array.isArray(this.value)) {
-    this.value.forEach(function(item) {
-      item.join(out, offset);
-      offset += item.length;
-    });
-  } else {
-    if (typeof this.value === 'number')
-      out[offset] = this.value;
-    else if (typeof this.value === 'string')
-      out.write(this.value, offset);
-    else if (Buffer.isBuffer(this.value))
-      this.value.copy(out, offset);
-    offset += this.length;
-  }
-
-  return out;
-};
-
-},{"../base":4,"buffer":47,"inherits":95}],4:[function(require,module,exports){
-var base = exports;
-
-base.Reporter = require('./reporter').Reporter;
-base.DecoderBuffer = require('./buffer').DecoderBuffer;
-base.EncoderBuffer = require('./buffer').EncoderBuffer;
-base.Node = require('./node');
-
-},{"./buffer":3,"./node":5,"./reporter":6}],5:[function(require,module,exports){
-var Reporter = require('../base').Reporter;
-var EncoderBuffer = require('../base').EncoderBuffer;
-var DecoderBuffer = require('../base').DecoderBuffer;
-var assert = require('minimalistic-assert');
-
-// Supported tags
-var tags = [
-  'seq', 'seqof', 'set', 'setof', 'objid', 'bool',
-  'gentime', 'utctime', 'null_', 'enum', 'int', 'objDesc',
-  'bitstr', 'bmpstr', 'charstr', 'genstr', 'graphstr', 'ia5str', 'iso646str',
-  'numstr', 'octstr', 'printstr', 't61str', 'unistr', 'utf8str', 'videostr'
-];
-
-// Public methods list
-var methods = [
-  'key', 'obj', 'use', 'optional', 'explicit', 'implicit', 'def', 'choice',
-  'any', 'contains'
-].concat(tags);
-
-// Overrided methods list
-var overrided = [
-  '_peekTag', '_decodeTag', '_use',
-  '_decodeStr', '_decodeObjid', '_decodeTime',
-  '_decodeNull', '_decodeInt', '_decodeBool', '_decodeList',
-
-  '_encodeComposite', '_encodeStr', '_encodeObjid', '_encodeTime',
-  '_encodeNull', '_encodeInt', '_encodeBool'
-];
-
-function Node(enc, parent) {
-  var state = {};
-  this._baseState = state;
-
-  state.enc = enc;
-
-  state.parent = parent || null;
-  state.children = null;
-
-  // State
-  state.tag = null;
-  state.args = null;
-  state.reverseArgs = null;
-  state.choice = null;
-  state.optional = false;
-  state.any = false;
-  state.obj = false;
-  state.use = null;
-  state.useDecoder = null;
-  state.key = null;
-  state['default'] = null;
-  state.explicit = null;
-  state.implicit = null;
-  state.contains = null;
-
-  // Should create new instance on each method
-  if (!state.parent) {
-    state.children = [];
-    this._wrap();
-  }
-}
-module.exports = Node;
-
-var stateProps = [
-  'enc', 'parent', 'children', 'tag', 'args', 'reverseArgs', 'choice',
-  'optional', 'any', 'obj', 'use', 'alteredUse', 'key', 'default', 'explicit',
-  'implicit', 'contains'
-];
-
-Node.prototype.clone = function clone() {
-  var state = this._baseState;
-  var cstate = {};
-  stateProps.forEach(function(prop) {
-    cstate[prop] = state[prop];
-  });
-  var res = new this.constructor(cstate.parent);
-  res._baseState = cstate;
-  return res;
-};
-
-Node.prototype._wrap = function wrap() {
-  var state = this._baseState;
-  methods.forEach(function(method) {
-    this[method] = function _wrappedMethod() {
-      var clone = new this.constructor(this);
-      state.children.push(clone);
-      return clone[method].apply(clone, arguments);
-    };
-  }, this);
-};
-
-Node.prototype._init = function init(body) {
-  var state = this._baseState;
-
-  assert(state.parent === null);
-  body.call(this);
-
-  // Filter children
-  state.children = state.children.filter(function(child) {
-    return child._baseState.parent === this;
-  }, this);
-  assert.equal(state.children.length, 1, 'Root node can have only one child');
-};
-
-Node.prototype._useArgs = function useArgs(args) {
-  var state = this._baseState;
-
-  // Filter children and args
-  var children = args.filter(function(arg) {
-    return arg instanceof this.constructor;
-  }, this);
-  args = args.filter(function(arg) {
-    return !(arg instanceof this.constructor);
-  }, this);
-
-  if (children.length !== 0) {
-    assert(state.children === null);
-    state.children = children;
-
-    // Replace parent to maintain backward link
-    children.forEach(function(child) {
-      child._baseState.parent = this;
-    }, this);
-  }
-  if (args.length !== 0) {
-    assert(state.args === null);
-    state.args = args;
-    state.reverseArgs = args.map(function(arg) {
-      if (typeof arg !== 'object' || arg.constructor !== Object)
-        return arg;
-
-      var res = {};
-      Object.keys(arg).forEach(function(key) {
-        if (key == (key | 0))
-          key |= 0;
-        var value = arg[key];
-        res[value] = key;
-      });
-      return res;
-    });
-  }
-};
-
-//
-// Overrided methods
-//
-
-overrided.forEach(function(method) {
-  Node.prototype[method] = function _overrided() {
-    var state = this._baseState;
-    throw new Error(method + ' not implemented for encoding: ' + state.enc);
-  };
-});
-
-//
-// Public methods
-//
-
-tags.forEach(function(tag) {
-  Node.prototype[tag] = function _tagMethod() {
-    var state = this._baseState;
-    var args = Array.prototype.slice.call(arguments);
-
-    assert(state.tag === null);
-    state.tag = tag;
-
-    this._useArgs(args);
-
-    return this;
-  };
-});
-
-Node.prototype.use = function use(item) {
-  assert(item);
-  var state = this._baseState;
-
-  assert(state.use === null);
-  state.use = item;
-
-  return this;
-};
-
-Node.prototype.optional = function optional() {
-  var state = this._baseState;
-
-  state.optional = true;
-
-  return this;
-};
-
-Node.prototype.def = function def(val) {
-  var state = this._baseState;
-
-  assert(state['default'] === null);
-  state['default'] = val;
-  state.optional = true;
-
-  return this;
-};
-
-Node.prototype.explicit = function explicit(num) {
-  var state = this._baseState;
-
-  assert(state.explicit === null && state.implicit === null);
-  state.explicit = num;
-
-  return this;
-};
-
-Node.prototype.implicit = function implicit(num) {
-  var state = this._baseState;
-
-  assert(state.explicit === null && state.implicit === null);
-  state.implicit = num;
-
-  return this;
-};
-
-Node.prototype.obj = function obj() {
-  var state = this._baseState;
-  var args = Array.prototype.slice.call(arguments);
-
-  state.obj = true;
-
-  if (args.length !== 0)
-    this._useArgs(args);
-
-  return this;
-};
-
-Node.prototype.key = function key(newKey) {
-  var state = this._baseState;
-
-  assert(state.key === null);
-  state.key = newKey;
-
-  return this;
-};
-
-Node.prototype.any = function any() {
-  var state = this._baseState;
-
-  state.any = true;
-
-  return this;
-};
-
-Node.prototype.choice = function choice(obj) {
-  var state = this._baseState;
-
-  assert(state.choice === null);
-  state.choice = obj;
-  this._useArgs(Object.keys(obj).map(function(key) {
-    return obj[key];
-  }));
-
-  return this;
-};
-
-Node.prototype.contains = function contains(item) {
-  var state = this._baseState;
-
-  assert(state.use === null);
-  state.contains = item;
-
-  return this;
-};
-
-//
-// Decoding
-//
-
-Node.prototype._decode = function decode(input, options) {
-  var state = this._baseState;
-
-  // Decode root node
-  if (state.parent === null)
-    return input.wrapResult(state.children[0]._decode(input, options));
-
-  var result = state['default'];
-  var present = true;
-
-  var prevKey = null;
-  if (state.key !== null)
-    prevKey = input.enterKey(state.key);
-
-  // Check if tag is there
-  if (state.optional) {
-    var tag = null;
-    if (state.explicit !== null)
-      tag = state.explicit;
-    else if (state.implicit !== null)
-      tag = state.implicit;
-    else if (state.tag !== null)
-      tag = state.tag;
-
-    if (tag === null && !state.any) {
-      // Trial and Error
-      var save = input.save();
-      try {
-        if (state.choice === null)
-          this._decodeGeneric(state.tag, input, options);
-        else
-          this._decodeChoice(input, options);
-        present = true;
-      } catch (e) {
-        present = false;
-      }
-      input.restore(save);
-    } else {
-      present = this._peekTag(input, tag, state.any);
-
-      if (input.isError(present))
-        return present;
-    }
-  }
-
-  // Push object on stack
-  var prevObj;
-  if (state.obj && present)
-    prevObj = input.enterObject();
-
-  if (present) {
-    // Unwrap explicit values
-    if (state.explicit !== null) {
-      var explicit = this._decodeTag(input, state.explicit);
-      if (input.isError(explicit))
-        return explicit;
-      input = explicit;
-    }
-
-    var start = input.offset;
-
-    // Unwrap implicit and normal values
-    if (state.use === null && state.choice === null) {
-      if (state.any)
-        var save = input.save();
-      var body = this._decodeTag(
-        input,
-        state.implicit !== null ? state.implicit : state.tag,
-        state.any
-      );
-      if (input.isError(body))
-        return body;
-
-      if (state.any)
-        result = input.raw(save);
-      else
-        input = body;
-    }
-
-    if (options && options.track && state.tag !== null)
-      options.track(input.path(), start, input.length, 'tagged');
-
-    if (options && options.track && state.tag !== null)
-      options.track(input.path(), input.offset, input.length, 'content');
-
-    // Select proper method for tag
-    if (state.any)
-      result = result;
-    else if (state.choice === null)
-      result = this._decodeGeneric(state.tag, input, options);
-    else
-      result = this._decodeChoice(input, options);
-
-    if (input.isError(result))
-      return result;
-
-    // Decode children
-    if (!state.any && state.choice === null && state.children !== null) {
-      state.children.forEach(function decodeChildren(child) {
-        // NOTE: We are ignoring errors here, to let parser continue with other
-        // parts of encoded data
-        child._decode(input, options);
-      });
-    }
-
-    // Decode contained/encoded by schema, only in bit or octet strings
-    if (state.contains && (state.tag === 'octstr' || state.tag === 'bitstr')) {
-      var data = new DecoderBuffer(result);
-      result = this._getUse(state.contains, input._reporterState.obj)
-          ._decode(data, options);
-    }
-  }
-
-  // Pop object
-  if (state.obj && present)
-    result = input.leaveObject(prevObj);
-
-  // Set key
-  if (state.key !== null && (result !== null || present === true))
-    input.leaveKey(prevKey, state.key, result);
-  else if (prevKey !== null)
-    input.exitKey(prevKey);
-
-  return result;
-};
-
-Node.prototype._decodeGeneric = function decodeGeneric(tag, input, options) {
-  var state = this._baseState;
-
-  if (tag === 'seq' || tag === 'set')
-    return null;
-  if (tag === 'seqof' || tag === 'setof')
-    return this._decodeList(input, tag, state.args[0], options);
-  else if (/str$/.test(tag))
-    return this._decodeStr(input, tag, options);
-  else if (tag === 'objid' && state.args)
-    return this._decodeObjid(input, state.args[0], state.args[1], options);
-  else if (tag === 'objid')
-    return this._decodeObjid(input, null, null, options);
-  else if (tag === 'gentime' || tag === 'utctime')
-    return this._decodeTime(input, tag, options);
-  else if (tag === 'null_')
-    return this._decodeNull(input, options);
-  else if (tag === 'bool')
-    return this._decodeBool(input, options);
-  else if (tag === 'objDesc')
-    return this._decodeStr(input, tag, options);
-  else if (tag === 'int' || tag === 'enum')
-    return this._decodeInt(input, state.args && state.args[0], options);
-
-  if (state.use !== null) {
-    return this._getUse(state.use, input._reporterState.obj)
-        ._decode(input, options);
-  } else {
-    return input.error('unknown tag: ' + tag);
-  }
-};
-
-Node.prototype._getUse = function _getUse(entity, obj) {
-
-  var state = this._baseState;
-  // Create altered use decoder if implicit is set
-  state.useDecoder = this._use(entity, obj);
-  assert(state.useDecoder._baseState.parent === null);
-  state.useDecoder = state.useDecoder._baseState.children[0];
-  if (state.implicit !== state.useDecoder._baseState.implicit) {
-    state.useDecoder = state.useDecoder.clone();
-    state.useDecoder._baseState.implicit = state.implicit;
-  }
-  return state.useDecoder;
-};
-
-Node.prototype._decodeChoice = function decodeChoice(input, options) {
-  var state = this._baseState;
-  var result = null;
-  var match = false;
-
-  Object.keys(state.choice).some(function(key) {
-    var save = input.save();
-    var node = state.choice[key];
-    try {
-      var value = node._decode(input, options);
-      if (input.isError(value))
-        return false;
-
-      result = { type: key, value: value };
-      match = true;
-    } catch (e) {
-      input.restore(save);
-      return false;
-    }
-    return true;
-  }, this);
-
-  if (!match)
-    return input.error('Choice not matched');
-
-  return result;
-};
-
-//
-// Encoding
-//
-
-Node.prototype._createEncoderBuffer = function createEncoderBuffer(data) {
-  return new EncoderBuffer(data, this.reporter);
-};
-
-Node.prototype._encode = function encode(data, reporter, parent) {
-  var state = this._baseState;
-  if (state['default'] !== null && state['default'] === data)
-    return;
-
-  var result = this._encodeValue(data, reporter, parent);
-  if (result === undefined)
-    return;
-
-  if (this._skipDefault(result, reporter, parent))
-    return;
-
-  return result;
-};
-
-Node.prototype._encodeValue = function encode(data, reporter, parent) {
-  var state = this._baseState;
-
-  // Decode root node
-  if (state.parent === null)
-    return state.children[0]._encode(data, reporter || new Reporter());
-
-  var result = null;
-
-  // Set reporter to share it with a child class
-  this.reporter = reporter;
-
-  // Check if data is there
-  if (state.optional && data === undefined) {
-    if (state['default'] !== null)
-      data = state['default']
-    else
-      return;
-  }
-
-  // Encode children first
-  var content = null;
-  var primitive = false;
-  if (state.any) {
-    // Anything that was given is translated to buffer
-    result = this._createEncoderBuffer(data);
-  } else if (state.choice) {
-    result = this._encodeChoice(data, reporter);
-  } else if (state.contains) {
-    content = this._getUse(state.contains, parent)._encode(data, reporter);
-    primitive = true;
-  } else if (state.children) {
-    content = state.children.map(function(child) {
-      if (child._baseState.tag === 'null_')
-        return child._encode(null, reporter, data);
-
-      if (child._baseState.key === null)
-        return reporter.error('Child should have a key');
-      var prevKey = reporter.enterKey(child._baseState.key);
-
-      if (typeof data !== 'object')
-        return reporter.error('Child expected, but input is not object');
-
-      var res = child._encode(data[child._baseState.key], reporter, data);
-      reporter.leaveKey(prevKey);
-
-      return res;
-    }, this).filter(function(child) {
-      return child;
-    });
-    content = this._createEncoderBuffer(content);
-  } else {
-    if (state.tag === 'seqof' || state.tag === 'setof') {
-      // TODO(indutny): this should be thrown on DSL level
-      if (!(state.args && state.args.length === 1))
-        return reporter.error('Too many args for : ' + state.tag);
-
-      if (!Array.isArray(data))
-        return reporter.error('seqof/setof, but data is not Array');
-
-      var child = this.clone();
-      child._baseState.implicit = null;
-      content = this._createEncoderBuffer(data.map(function(item) {
-        var state = this._baseState;
-
-        return this._getUse(state.args[0], data)._encode(item, reporter);
-      }, child));
-    } else if (state.use !== null) {
-      result = this._getUse(state.use, parent)._encode(data, reporter);
-    } else {
-      content = this._encodePrimitive(state.tag, data);
-      primitive = true;
-    }
-  }
-
-  // Encode data itself
-  var result;
-  if (!state.any && state.choice === null) {
-    var tag = state.implicit !== null ? state.implicit : state.tag;
-    var cls = state.implicit === null ? 'universal' : 'context';
-
-    if (tag === null) {
-      if (state.use === null)
-        reporter.error('Tag could be ommited only for .use()');
-    } else {
-      if (state.use === null)
-        result = this._encodeComposite(tag, primitive, cls, content);
-    }
-  }
-
-  // Wrap in explicit
-  if (state.explicit !== null)
-    result = this._encodeComposite(state.explicit, false, 'context', result);
-
-  return result;
-};
-
-Node.prototype._encodeChoice = function encodeChoice(data, reporter) {
-  var state = this._baseState;
-
-  var node = state.choice[data.type];
-  if (!node) {
-    assert(
-        false,
-        data.type + ' not found in ' +
-            JSON.stringify(Object.keys(state.choice)));
-  }
-  return node._encode(data.value, reporter);
-};
-
-Node.prototype._encodePrimitive = function encodePrimitive(tag, data) {
-  var state = this._baseState;
-
-  if (/str$/.test(tag))
-    return this._encodeStr(data, tag);
-  else if (tag === 'objid' && state.args)
-    return this._encodeObjid(data, state.reverseArgs[0], state.args[1]);
-  else if (tag === 'objid')
-    return this._encodeObjid(data, null, null);
-  else if (tag === 'gentime' || tag === 'utctime')
-    return this._encodeTime(data, tag);
-  else if (tag === 'null_')
-    return this._encodeNull();
-  else if (tag === 'int' || tag === 'enum')
-    return this._encodeInt(data, state.args && state.reverseArgs[0]);
-  else if (tag === 'bool')
-    return this._encodeBool(data);
-  else if (tag === 'objDesc')
-    return this._encodeStr(data, tag);
-  else
-    throw new Error('Unsupported tag: ' + tag);
-};
-
-Node.prototype._isNumstr = function isNumstr(str) {
-  return /^[0-9 ]*$/.test(str);
-};
-
-Node.prototype._isPrintstr = function isPrintstr(str) {
-  return /^[A-Za-z0-9 '\(\)\+,\-\.\/:=\?]*$/.test(str);
-};
-
-},{"../base":4,"minimalistic-assert":99}],6:[function(require,module,exports){
-var inherits = require('inherits');
-
-function Reporter(options) {
-  this._reporterState = {
-    obj: null,
-    path: [],
-    options: options || {},
-    errors: []
-  };
-}
-exports.Reporter = Reporter;
-
-Reporter.prototype.isError = function isError(obj) {
-  return obj instanceof ReporterError;
-};
-
-Reporter.prototype.save = function save() {
-  var state = this._reporterState;
-
-  return { obj: state.obj, pathLen: state.path.length };
-};
-
-Reporter.prototype.restore = function restore(data) {
-  var state = this._reporterState;
-
-  state.obj = data.obj;
-  state.path = state.path.slice(0, data.pathLen);
-};
-
-Reporter.prototype.enterKey = function enterKey(key) {
-  return this._reporterState.path.push(key);
-};
-
-Reporter.prototype.exitKey = function exitKey(index) {
-  var state = this._reporterState;
-
-  state.path = state.path.slice(0, index - 1);
-};
-
-Reporter.prototype.leaveKey = function leaveKey(index, key, value) {
-  var state = this._reporterState;
-
-  this.exitKey(index);
-  if (state.obj !== null)
-    state.obj[key] = value;
-};
-
-Reporter.prototype.path = function path() {
-  return this._reporterState.path.join('/');
-};
-
-Reporter.prototype.enterObject = function enterObject() {
-  var state = this._reporterState;
-
-  var prev = state.obj;
-  state.obj = {};
-  return prev;
-};
-
-Reporter.prototype.leaveObject = function leaveObject(prev) {
-  var state = this._reporterState;
-
-  var now = state.obj;
-  state.obj = prev;
-  return now;
-};
-
-Reporter.prototype.error = function error(msg) {
-  var err;
-  var state = this._reporterState;
-
-  var inherited = msg instanceof ReporterError;
-  if (inherited) {
-    err = msg;
-  } else {
-    err = new ReporterError(state.path.map(function(elem) {
-      return '[' + JSON.stringify(elem) + ']';
-    }).join(''), msg.message || msg, msg.stack);
-  }
-
-  if (!state.options.partial)
-    throw err;
-
-  if (!inherited)
-    state.errors.push(err);
-
-  return err;
-};
-
-Reporter.prototype.wrapResult = function wrapResult(result) {
-  var state = this._reporterState;
-  if (!state.options.partial)
-    return result;
-
-  return {
-    result: this.isError(result) ? null : result,
-    errors: state.errors
-  };
-};
-
-function ReporterError(path, msg) {
-  this.path = path;
-  this.rethrow(msg);
-};
-inherits(ReporterError, Error);
-
-ReporterError.prototype.rethrow = function rethrow(msg) {
-  this.message = msg + ' at: ' + (this.path || '(shallow)');
-  if (Error.captureStackTrace)
-    Error.captureStackTrace(this, ReporterError);
-
-  if (!this.stack) {
-    try {
-      // IE only adds stack when thrown
-      throw new Error(this.message);
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-      this.stack = e.stack;
-    }
-  }
-  return this;
-};
-
-},{"inherits":95}],7:[function(require,module,exports){
-var constants = require('../constants');
-
-exports.tagClass = {
-  0: 'universal',
-  1: 'application',
-  2: 'context',
-  3: 'private'
-};
-exports.tagClassByName = constants._reverse(exports.tagClass);
-
-exports.tag = {
-  0x00: 'end',
-  0x01: 'bool',
-  0x02: 'int',
-  0x03: 'bitstr',
-  0x04: 'octstr',
-  0x05: 'null_',
-  0x06: 'objid',
-  0x07: 'objDesc',
-  0x08: 'external',
-  0x09: 'real',
-  0x0a: 'enum',
-  0x0b: 'embed',
-  0x0c: 'utf8str',
-  0x0d: 'relativeOid',
-  0x10: 'seq',
-  0x11: 'set',
-  0x12: 'numstr',
-  0x13: 'printstr',
-  0x14: 't61str',
-  0x15: 'videostr',
-  0x16: 'ia5str',
-  0x17: 'utctime',
-  0x18: 'gentime',
-  0x19: 'graphstr',
-  0x1a: 'iso646str',
-  0x1b: 'genstr',
-  0x1c: 'unistr',
-  0x1d: 'charstr',
-  0x1e: 'bmpstr'
-};
-exports.tagByName = constants._reverse(exports.tag);
-
-},{"../constants":8}],8:[function(require,module,exports){
-var constants = exports;
-
-// Helper
-constants._reverse = function reverse(map) {
-  var res = {};
-
-  Object.keys(map).forEach(function(key) {
-    // Convert key to integer if it is stringified
-    if ((key | 0) == key)
-      key = key | 0;
-
-    var value = map[key];
-    res[value] = key;
-  });
-
-  return res;
-};
-
-constants.der = require('./der');
-
-},{"./der":7}],9:[function(require,module,exports){
-var inherits = require('inherits');
-
-var asn1 = require('../../asn1');
-var base = asn1.base;
-var bignum = asn1.bignum;
-
-// Import DER constants
-var der = asn1.constants.der;
-
-function DERDecoder(entity) {
-  this.enc = 'der';
-  this.name = entity.name;
-  this.entity = entity;
-
-  // Construct base tree
-  this.tree = new DERNode();
-  this.tree._init(entity.body);
-};
-module.exports = DERDecoder;
-
-DERDecoder.prototype.decode = function decode(data, options) {
-  if (!(data instanceof base.DecoderBuffer))
-    data = new base.DecoderBuffer(data, options);
-
-  return this.tree._decode(data, options);
-};
-
-// Tree methods
-
-function DERNode(parent) {
-  base.Node.call(this, 'der', parent);
-}
-inherits(DERNode, base.Node);
-
-DERNode.prototype._peekTag = function peekTag(buffer, tag, any) {
-  if (buffer.isEmpty())
-    return false;
-
-  var state = buffer.save();
-  var decodedTag = derDecodeTag(buffer, 'Failed to peek tag: "' + tag + '"');
-  if (buffer.isError(decodedTag))
-    return decodedTag;
-
-  buffer.restore(state);
-
-  return decodedTag.tag === tag || decodedTag.tagStr === tag ||
-    (decodedTag.tagStr + 'of') === tag || any;
-};
-
-DERNode.prototype._decodeTag = function decodeTag(buffer, tag, any) {
-  var decodedTag = derDecodeTag(buffer,
-                                'Failed to decode tag of "' + tag + '"');
-  if (buffer.isError(decodedTag))
-    return decodedTag;
-
-  var len = derDecodeLen(buffer,
-                         decodedTag.primitive,
-                         'Failed to get length of "' + tag + '"');
-
-  // Failure
-  if (buffer.isError(len))
-    return len;
-
-  if (!any &&
-      decodedTag.tag !== tag &&
-      decodedTag.tagStr !== tag &&
-      decodedTag.tagStr + 'of' !== tag) {
-    return buffer.error('Failed to match tag: "' + tag + '"');
-  }
-
-  if (decodedTag.primitive || len !== null)
-    return buffer.skip(len, 'Failed to match body of: "' + tag + '"');
-
-  // Indefinite length... find END tag
-  var state = buffer.save();
-  var res = this._skipUntilEnd(
-      buffer,
-      'Failed to skip indefinite length body: "' + this.tag + '"');
-  if (buffer.isError(res))
-    return res;
-
-  len = buffer.offset - state.offset;
-  buffer.restore(state);
-  return buffer.skip(len, 'Failed to match body of: "' + tag + '"');
-};
-
-DERNode.prototype._skipUntilEnd = function skipUntilEnd(buffer, fail) {
-  while (true) {
-    var tag = derDecodeTag(buffer, fail);
-    if (buffer.isError(tag))
-      return tag;
-    var len = derDecodeLen(buffer, tag.primitive, fail);
-    if (buffer.isError(len))
-      return len;
-
-    var res;
-    if (tag.primitive || len !== null)
-      res = buffer.skip(len)
-    else
-      res = this._skipUntilEnd(buffer, fail);
-
-    // Failure
-    if (buffer.isError(res))
-      return res;
-
-    if (tag.tagStr === 'end')
-      break;
-  }
-};
-
-DERNode.prototype._decodeList = function decodeList(buffer, tag, decoder,
-                                                    options) {
-  var result = [];
-  while (!buffer.isEmpty()) {
-    var possibleEnd = this._peekTag(buffer, 'end');
-    if (buffer.isError(possibleEnd))
-      return possibleEnd;
-
-    var res = decoder.decode(buffer, 'der', options);
-    if (buffer.isError(res) && possibleEnd)
-      break;
-    result.push(res);
-  }
-  return result;
-};
-
-DERNode.prototype._decodeStr = function decodeStr(buffer, tag) {
-  if (tag === 'bitstr') {
-    var unused = buffer.readUInt8();
-    if (buffer.isError(unused))
-      return unused;
-    return { unused: unused, data: buffer.raw() };
-  } else if (tag === 'bmpstr') {
-    var raw = buffer.raw();
-    if (raw.length % 2 === 1)
-      return buffer.error('Decoding of string type: bmpstr length mismatch');
-
-    var str = '';
-    for (var i = 0; i < raw.length / 2; i++) {
-      str += String.fromCharCode(raw.readUInt16BE(i * 2));
-    }
-    return str;
-  } else if (tag === 'numstr') {
-    var numstr = buffer.raw().toString('ascii');
-    if (!this._isNumstr(numstr)) {
-      return buffer.error('Decoding of string type: ' +
-                          'numstr unsupported characters');
-    }
-    return numstr;
-  } else if (tag === 'octstr') {
-    return buffer.raw();
-  } else if (tag === 'objDesc') {
-    return buffer.raw();
-  } else if (tag === 'printstr') {
-    var printstr = buffer.raw().toString('ascii');
-    if (!this._isPrintstr(printstr)) {
-      return buffer.error('Decoding of string type: ' +
-                          'printstr unsupported characters');
-    }
-    return printstr;
-  } else if (/str$/.test(tag)) {
-    return buffer.raw().toString();
-  } else {
-    return buffer.error('Decoding of string type: ' + tag + ' unsupported');
-  }
-};
-
-DERNode.prototype._decodeObjid = function decodeObjid(buffer, values, relative) {
-  var result;
-  var identifiers = [];
-  var ident = 0;
-  while (!buffer.isEmpty()) {
-    var subident = buffer.readUInt8();
-    ident <<= 7;
-    ident |= subident & 0x7f;
-    if ((subident & 0x80) === 0) {
-      identifiers.push(ident);
-      ident = 0;
-    }
-  }
-  if (subident & 0x80)
-    identifiers.push(ident);
-
-  var first = (identifiers[0] / 40) | 0;
-  var second = identifiers[0] % 40;
-
-  if (relative)
-    result = identifiers;
-  else
-    result = [first, second].concat(identifiers.slice(1));
-
-  if (values) {
-    var tmp = values[result.join(' ')];
-    if (tmp === undefined)
-      tmp = values[result.join('.')];
-    if (tmp !== undefined)
-      result = tmp;
-  }
-
-  return result;
-};
-
-DERNode.prototype._decodeTime = function decodeTime(buffer, tag) {
-  var str = buffer.raw().toString();
-  if (tag === 'gentime') {
-    var year = str.slice(0, 4) | 0;
-    var mon = str.slice(4, 6) | 0;
-    var day = str.slice(6, 8) | 0;
-    var hour = str.slice(8, 10) | 0;
-    var min = str.slice(10, 12) | 0;
-    var sec = str.slice(12, 14) | 0;
-  } else if (tag === 'utctime') {
-    var year = str.slice(0, 2) | 0;
-    var mon = str.slice(2, 4) | 0;
-    var day = str.slice(4, 6) | 0;
-    var hour = str.slice(6, 8) | 0;
-    var min = str.slice(8, 10) | 0;
-    var sec = str.slice(10, 12) | 0;
-    if (year < 70)
-      year = 2000 + year;
-    else
-      year = 1900 + year;
-  } else {
-    return buffer.error('Decoding ' + tag + ' time is not supported yet');
-  }
-
-  return Date.UTC(year, mon - 1, day, hour, min, sec, 0);
-};
-
-DERNode.prototype._decodeNull = function decodeNull(buffer) {
-  return null;
-};
-
-DERNode.prototype._decodeBool = function decodeBool(buffer) {
-  var res = buffer.readUInt8();
-  if (buffer.isError(res))
-    return res;
-  else
-    return res !== 0;
-};
-
-DERNode.prototype._decodeInt = function decodeInt(buffer, values) {
-  // Bigint, return as it is (assume big endian)
-  var raw = buffer.raw();
-  var res = new bignum(raw);
-
-  if (values)
-    res = values[res.toString(10)] || res;
-
-  return res;
-};
-
-DERNode.prototype._use = function use(entity, obj) {
-  if (typeof entity === 'function')
-    entity = entity(obj);
-  return entity._getDecoder('der').tree;
-};
-
-// Utility methods
-
-function derDecodeTag(buf, fail) {
-  var tag = buf.readUInt8(fail);
-  if (buf.isError(tag))
-    return tag;
-
-  var cls = der.tagClass[tag >> 6];
-  var primitive = (tag & 0x20) === 0;
-
-  // Multi-octet tag - load
-  if ((tag & 0x1f) === 0x1f) {
-    var oct = tag;
-    tag = 0;
-    while ((oct & 0x80) === 0x80) {
-      oct = buf.readUInt8(fail);
-      if (buf.isError(oct))
-        return oct;
-
-      tag <<= 7;
-      tag |= oct & 0x7f;
-    }
-  } else {
-    tag &= 0x1f;
-  }
-  var tagStr = der.tag[tag];
-
-  return {
-    cls: cls,
-    primitive: primitive,
-    tag: tag,
-    tagStr: tagStr
-  };
-}
-
-function derDecodeLen(buf, primitive, fail) {
-  var len = buf.readUInt8(fail);
-  if (buf.isError(len))
-    return len;
-
-  // Indefinite form
-  if (!primitive && len === 0x80)
-    return null;
-
-  // Definite form
-  if ((len & 0x80) === 0) {
-    // Short form
-    return len;
-  }
-
-  // Long form
-  var num = len & 0x7f;
-  if (num > 4)
-    return buf.error('length octect is too long');
-
-  len = 0;
-  for (var i = 0; i < num; i++) {
-    len <<= 8;
-    var j = buf.readUInt8(fail);
-    if (buf.isError(j))
-      return j;
-    len |= j;
-  }
-
-  return len;
-}
-
-},{"../../asn1":1,"inherits":95}],10:[function(require,module,exports){
-var decoders = exports;
-
-decoders.der = require('./der');
-decoders.pem = require('./pem');
-
-},{"./der":9,"./pem":11}],11:[function(require,module,exports){
-var inherits = require('inherits');
-var Buffer = require('buffer').Buffer;
-
-var DERDecoder = require('./der');
-
-function PEMDecoder(entity) {
-  DERDecoder.call(this, entity);
-  this.enc = 'pem';
-};
-inherits(PEMDecoder, DERDecoder);
-module.exports = PEMDecoder;
-
-PEMDecoder.prototype.decode = function decode(data, options) {
-  var lines = data.toString().split(/[\r\n]+/g);
-
-  var label = options.label.toUpperCase();
-
-  var re = /^-----(BEGIN|END) ([^-]+)-----$/;
-  var start = -1;
-  var end = -1;
-  for (var i = 0; i < lines.length; i++) {
-    var match = lines[i].match(re);
-    if (match === null)
-      continue;
-
-    if (match[2] !== label)
-      continue;
-
-    if (start === -1) {
-      if (match[1] !== 'BEGIN')
-        break;
-      start = i;
-    } else {
-      if (match[1] !== 'END')
-        break;
-      end = i;
-      break;
-    }
-  }
-  if (start === -1 || end === -1)
-    throw new Error('PEM section not found for: ' + label);
-
-  var base64 = lines.slice(start + 1, end).join('');
-  // Remove excessive symbols
-  base64.replace(/[^a-z0-9\+\/=]+/gi, '');
-
-  var input = new Buffer(base64, 'base64');
-  return DERDecoder.prototype.decode.call(this, input, options);
-};
-
-},{"./der":9,"buffer":47,"inherits":95}],12:[function(require,module,exports){
-var inherits = require('inherits');
-var Buffer = require('buffer').Buffer;
-
-var asn1 = require('../../asn1');
-var base = asn1.base;
-
-// Import DER constants
-var der = asn1.constants.der;
-
-function DEREncoder(entity) {
-  this.enc = 'der';
-  this.name = entity.name;
-  this.entity = entity;
-
-  // Construct base tree
-  this.tree = new DERNode();
-  this.tree._init(entity.body);
-};
-module.exports = DEREncoder;
-
-DEREncoder.prototype.encode = function encode(data, reporter) {
-  return this.tree._encode(data, reporter).join();
-};
-
-// Tree methods
-
-function DERNode(parent) {
-  base.Node.call(this, 'der', parent);
-}
-inherits(DERNode, base.Node);
-
-DERNode.prototype._encodeComposite = function encodeComposite(tag,
-                                                              primitive,
-                                                              cls,
-                                                              content) {
-  var encodedTag = encodeTag(tag, primitive, cls, this.reporter);
-
-  // Short form
-  if (content.length < 0x80) {
-    var header = new Buffer(2);
-    header[0] = encodedTag;
-    header[1] = content.length;
-    return this._createEncoderBuffer([ header, content ]);
-  }
-
-  // Long form
-  // Count octets required to store length
-  var lenOctets = 1;
-  for (var i = content.length; i >= 0x100; i >>= 8)
-    lenOctets++;
-
-  var header = new Buffer(1 + 1 + lenOctets);
-  header[0] = encodedTag;
-  header[1] = 0x80 | lenOctets;
-
-  for (var i = 1 + lenOctets, j = content.length; j > 0; i--, j >>= 8)
-    header[i] = j & 0xff;
-
-  return this._createEncoderBuffer([ header, content ]);
-};
-
-DERNode.prototype._encodeStr = function encodeStr(str, tag) {
-  if (tag === 'bitstr') {
-    return this._createEncoderBuffer([ str.unused | 0, str.data ]);
-  } else if (tag === 'bmpstr') {
-    var buf = new Buffer(str.length * 2);
-    for (var i = 0; i < str.length; i++) {
-      buf.writeUInt16BE(str.charCodeAt(i), i * 2);
-    }
-    return this._createEncoderBuffer(buf);
-  } else if (tag === 'numstr') {
-    if (!this._isNumstr(str)) {
-      return this.reporter.error('Encoding of string type: numstr supports ' +
-                                 'only digits and space');
-    }
-    return this._createEncoderBuffer(str);
-  } else if (tag === 'printstr') {
-    if (!this._isPrintstr(str)) {
-      return this.reporter.error('Encoding of string type: printstr supports ' +
-                                 'only latin upper and lower case letters, ' +
-                                 'digits, space, apostrophe, left and rigth ' +
-                                 'parenthesis, plus sign, comma, hyphen, ' +
-                                 'dot, slash, colon, equal sign, ' +
-                                 'question mark');
-    }
-    return this._createEncoderBuffer(str);
-  } else if (/str$/.test(tag)) {
-    return this._createEncoderBuffer(str);
-  } else if (tag === 'objDesc') {
-    return this._createEncoderBuffer(str);
-  } else {
-    return this.reporter.error('Encoding of string type: ' + tag +
-                               ' unsupported');
-  }
-};
-
-DERNode.prototype._encodeObjid = function encodeObjid(id, values, relative) {
-  if (typeof id === 'string') {
-    if (!values)
-      return this.reporter.error('string objid given, but no values map found');
-    if (!values.hasOwnProperty(id))
-      return this.reporter.error('objid not found in values map');
-    id = values[id].split(/[\s\.]+/g);
-    for (var i = 0; i < id.length; i++)
-      id[i] |= 0;
-  } else if (Array.isArray(id)) {
-    id = id.slice();
-    for (var i = 0; i < id.length; i++)
-      id[i] |= 0;
-  }
-
-  if (!Array.isArray(id)) {
-    return this.reporter.error('objid() should be either array or string, ' +
-                               'got: ' + JSON.stringify(id));
-  }
-
-  if (!relative) {
-    if (id[1] >= 40)
-      return this.reporter.error('Second objid identifier OOB');
-    id.splice(0, 2, id[0] * 40 + id[1]);
-  }
-
-  // Count number of octets
-  var size = 0;
-  for (var i = 0; i < id.length; i++) {
-    var ident = id[i];
-    for (size++; ident >= 0x80; ident >>= 7)
-      size++;
-  }
-
-  var objid = new Buffer(size);
-  var offset = objid.length - 1;
-  for (var i = id.length - 1; i >= 0; i--) {
-    var ident = id[i];
-    objid[offset--] = ident & 0x7f;
-    while ((ident >>= 7) > 0)
-      objid[offset--] = 0x80 | (ident & 0x7f);
-  }
-
-  return this._createEncoderBuffer(objid);
-};
-
-function two(num) {
-  if (num < 10)
-    return '0' + num;
-  else
-    return num;
-}
-
-DERNode.prototype._encodeTime = function encodeTime(time, tag) {
-  var str;
-  var date = new Date(time);
-
-  if (tag === 'gentime') {
-    str = [
-      two(date.getFullYear()),
-      two(date.getUTCMonth() + 1),
-      two(date.getUTCDate()),
-      two(date.getUTCHours()),
-      two(date.getUTCMinutes()),
-      two(date.getUTCSeconds()),
-      'Z'
-    ].join('');
-  } else if (tag === 'utctime') {
-    str = [
-      two(date.getFullYear() % 100),
-      two(date.getUTCMonth() + 1),
-      two(date.getUTCDate()),
-      two(date.getUTCHours()),
-      two(date.getUTCMinutes()),
-      two(date.getUTCSeconds()),
-      'Z'
-    ].join('');
-  } else {
-    this.reporter.error('Encoding ' + tag + ' time is not supported yet');
-  }
-
-  return this._encodeStr(str, 'octstr');
-};
-
-DERNode.prototype._encodeNull = function encodeNull() {
-  return this._createEncoderBuffer('');
-};
-
-DERNode.prototype._encodeInt = function encodeInt(num, values) {
-  if (typeof num === 'string') {
-    if (!values)
-      return this.reporter.error('String int or enum given, but no values map');
-    if (!values.hasOwnProperty(num)) {
-      return this.reporter.error('Values map doesn\'t contain: ' +
-                                 JSON.stringify(num));
-    }
-    num = values[num];
-  }
-
-  // Bignum, assume big endian
-  if (typeof num !== 'number' && !Buffer.isBuffer(num)) {
-    var numArray = num.toArray();
-    if (!num.sign && numArray[0] & 0x80) {
-      numArray.unshift(0);
-    }
-    num = new Buffer(numArray);
-  }
-
-  if (Buffer.isBuffer(num)) {
-    var size = num.length;
-    if (num.length === 0)
-      size++;
-
-    var out = new Buffer(size);
-    num.copy(out);
-    if (num.length === 0)
-      out[0] = 0
-    return this._createEncoderBuffer(out);
-  }
-
-  if (num < 0x80)
-    return this._createEncoderBuffer(num);
-
-  if (num < 0x100)
-    return this._createEncoderBuffer([0, num]);
-
-  var size = 1;
-  for (var i = num; i >= 0x100; i >>= 8)
-    size++;
-
-  var out = new Array(size);
-  for (var i = out.length - 1; i >= 0; i--) {
-    out[i] = num & 0xff;
-    num >>= 8;
-  }
-  if(out[0] & 0x80) {
-    out.unshift(0);
-  }
-
-  return this._createEncoderBuffer(new Buffer(out));
-};
-
-DERNode.prototype._encodeBool = function encodeBool(value) {
-  return this._createEncoderBuffer(value ? 0xff : 0);
-};
-
-DERNode.prototype._use = function use(entity, obj) {
-  if (typeof entity === 'function')
-    entity = entity(obj);
-  return entity._getEncoder('der').tree;
-};
-
-DERNode.prototype._skipDefault = function skipDefault(dataBuffer, reporter, parent) {
-  var state = this._baseState;
-  var i;
-  if (state['default'] === null)
-    return false;
-
-  var data = dataBuffer.join();
-  if (state.defaultBuffer === undefined)
-    state.defaultBuffer = this._encodeValue(state['default'], reporter, parent).join();
-
-  if (data.length !== state.defaultBuffer.length)
-    return false;
-
-  for (i=0; i < data.length; i++)
-    if (data[i] !== state.defaultBuffer[i])
-      return false;
-
-  return true;
-};
-
-// Utility methods
-
-function encodeTag(tag, primitive, cls, reporter) {
-  var res;
-
-  if (tag === 'seqof')
-    tag = 'seq';
-  else if (tag === 'setof')
-    tag = 'set';
-
-  if (der.tagByName.hasOwnProperty(tag))
-    res = der.tagByName[tag];
-  else if (typeof tag === 'number' && (tag | 0) === tag)
-    res = tag;
-  else
-    return reporter.error('Unknown tag: ' + tag);
-
-  if (res >= 0x1f)
-    return reporter.error('Multi-octet tag encoding unsupported');
-
-  if (!primitive)
-    res |= 0x20;
-
-  res |= (der.tagClassByName[cls || 'universal'] << 6);
-
-  return res;
-}
-
-},{"../../asn1":1,"buffer":47,"inherits":95}],13:[function(require,module,exports){
-var encoders = exports;
-
-encoders.der = require('./der');
-encoders.pem = require('./pem');
-
-},{"./der":12,"./pem":14}],14:[function(require,module,exports){
-var inherits = require('inherits');
-
-var DEREncoder = require('./der');
-
-function PEMEncoder(entity) {
-  DEREncoder.call(this, entity);
-  this.enc = 'pem';
-};
-inherits(PEMEncoder, DEREncoder);
-module.exports = PEMEncoder;
-
-PEMEncoder.prototype.encode = function encode(data, options) {
-  var buf = DEREncoder.prototype.encode.call(this, data);
-
-  var p = buf.toString('base64');
-  var out = [ '-----BEGIN ' + options.label + '-----' ];
-  for (var i = 0; i < p.length; i += 64)
-    out.push(p.slice(i, i + 64));
-  out.push('-----END ' + options.label + '-----');
-  return out.join('\n');
-};
-
-},{"./der":12,"inherits":95}],15:[function(require,module,exports){
-(function (global){
-'use strict';
-
-// compare and isBuffer taken from https://github.com/feross/buffer/blob/680e9e5e488f22aac27599a57dc844a6315928dd/index.js
-// original notice:
-
-/*!
- * The buffer module from node.js, for the browser.
- *
- * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
- * @license  MIT
- */
-function compare(a, b) {
-  if (a === b) {
-    return 0;
-  }
-
-  var x = a.length;
-  var y = b.length;
-
-  for (var i = 0, len = Math.min(x, y); i < len; ++i) {
-    if (a[i] !== b[i]) {
-      x = a[i];
-      y = b[i];
-      break;
-    }
-  }
-
-  if (x < y) {
-    return -1;
-  }
-  if (y < x) {
-    return 1;
-  }
-  return 0;
-}
-function isBuffer(b) {
-  if (global.Buffer && typeof global.Buffer.isBuffer === 'function') {
-    return global.Buffer.isBuffer(b);
-  }
-  return !!(b != null && b._isBuffer);
-}
-
-// based on node assert, original notice:
-
-// http://wiki.commonjs.org/wiki/Unit_Testing/1.0
-//
-// THIS IS NOT TESTED NOR LIKELY TO WORK OUTSIDE V8!
-//
-// Originally from narwhal.js (http://narwhaljs.org)
-// Copyright (c) 2009 Thomas Robinson <280north.com>
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the 'Software'), to
-// deal in the Software without restriction, including without limitation the
-// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-// sell copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
-// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-var util = require('util/');
-var hasOwn = Object.prototype.hasOwnProperty;
-var pSlice = Array.prototype.slice;
-var functionsHaveNames = (function () {
-  return function foo() {}.name === 'foo';
-}());
-function pToString (obj) {
-  return Object.prototype.toString.call(obj);
-}
-function isView(arrbuf) {
-  if (isBuffer(arrbuf)) {
-    return false;
-  }
-  if (typeof global.ArrayBuffer !== 'function') {
-    return false;
-  }
-  if (typeof ArrayBuffer.isView === 'function') {
-    return ArrayBuffer.isView(arrbuf);
-  }
-  if (!arrbuf) {
-    return false;
-  }
-  if (arrbuf instanceof DataView) {
-    return true;
-  }
-  if (arrbuf.buffer && arrbuf.buffer instanceof ArrayBuffer) {
-    return true;
-  }
-  return false;
-}
-// 1. The assert module provides functions that throw
-// AssertionError's when particular conditions are not met. The
-// assert module must conform to the following interface.
-
-var assert = module.exports = ok;
-
-// 2. The AssertionError is defined in assert.
-// new assert.AssertionError({ message: message,
-//                             actual: actual,
-//                             expected: expected })
-
-var regex = /\s*function\s+([^\(\s]*)\s*/;
-// based on https://github.com/ljharb/function.prototype.name/blob/adeeeec8bfcc6068b187d7d9fb3d5bb1d3a30899/implementation.js
-function getName(func) {
-  if (!util.isFunction(func)) {
-    return;
-  }
-  if (functionsHaveNames) {
-    return func.name;
-  }
-  var str = func.toString();
-  var match = str.match(regex);
-  return match && match[1];
-}
-assert.AssertionError = function AssertionError(options) {
-  this.name = 'AssertionError';
-  this.actual = options.actual;
-  this.expected = options.expected;
-  this.operator = options.operator;
-  if (options.message) {
-    this.message = options.message;
-    this.generatedMessage = false;
-  } else {
-    this.message = getMessage(this);
-    this.generatedMessage = true;
-  }
-  var stackStartFunction = options.stackStartFunction || fail;
-  if (Error.captureStackTrace) {
-    Error.captureStackTrace(this, stackStartFunction);
-  } else {
-    // non v8 browsers so we can have a stacktrace
-    var err = new Error();
-    if (err.stack) {
-      var out = err.stack;
-
-      // try to strip useless frames
-      var fn_name = getName(stackStartFunction);
-      var idx = out.indexOf('\n' + fn_name);
-      if (idx >= 0) {
-        // once we have located the function frame
-        // we need to strip out everything before it (and its line)
-        var next_line = out.indexOf('\n', idx + 1);
-        out = out.substring(next_line + 1);
-      }
-
-      this.stack = out;
-    }
-  }
-};
-
-// assert.AssertionError instanceof Error
-util.inherits(assert.AssertionError, Error);
-
-function truncate(s, n) {
-  if (typeof s === 'string') {
-    return s.length < n ? s : s.slice(0, n);
-  } else {
-    return s;
-  }
-}
-function inspect(something) {
-  if (functionsHaveNames || !util.isFunction(something)) {
-    return util.inspect(something);
-  }
-  var rawname = getName(something);
-  var name = rawname ? ': ' + rawname : '';
-  return '[Function' +  name + ']';
-}
-function getMessage(self) {
-  return truncate(inspect(self.actual), 128) + ' ' +
-         self.operator + ' ' +
-         truncate(inspect(self.expected), 128);
-}
-
-// At present only the three keys mentioned above are used and
-// understood by the spec. Implementations or sub modules can pass
-// other keys to the AssertionError's constructor - they will be
-// ignored.
-
-// 3. All of the following functions must throw an AssertionError
-// when a corresponding condition is not met, with a message that
-// may be undefined if not provided.  All assertion methods provide
-// both the actual and expected values to the assertion error for
-// display purposes.
-
-function fail(actual, expected, message, operator, stackStartFunction) {
-  throw new assert.AssertionError({
-    message: message,
-    actual: actual,
-    expected: expected,
-    operator: operator,
-    stackStartFunction: stackStartFunction
-  });
-}
-
-// EXTENSION! allows for well behaved errors defined elsewhere.
-assert.fail = fail;
-
-// 4. Pure assertion tests whether a value is truthy, as determined
-// by !!guard.
-// assert.ok(guard, message_opt);
-// This statement is equivalent to assert.equal(true, !!guard,
-// message_opt);. To test strictly for the value true, use
-// assert.strictEqual(true, guard, message_opt);.
-
-function ok(value, message) {
-  if (!value) fail(value, true, message, '==', assert.ok);
-}
-assert.ok = ok;
-
-// 5. The equality assertion tests shallow, coercive equality with
-// ==.
-// assert.equal(actual, expected, message_opt);
-
-assert.equal = function equal(actual, expected, message) {
-  if (actual != expected) fail(actual, expected, message, '==', assert.equal);
-};
-
-// 6. The non-equality assertion tests for whether two objects are not equal
-// with != assert.notEqual(actual, expected, message_opt);
-
-assert.notEqual = function notEqual(actual, expected, message) {
-  if (actual == expected) {
-    fail(actual, expected, message, '!=', assert.notEqual);
-  }
-};
-
-// 7. The equivalence assertion tests a deep equality relation.
-// assert.deepEqual(actual, expected, message_opt);
-
-assert.deepEqual = function deepEqual(actual, expected, message) {
-  if (!_deepEqual(actual, expected, false)) {
-    fail(actual, expected, message, 'deepEqual', assert.deepEqual);
-  }
-};
-
-assert.deepStrictEqual = function deepStrictEqual(actual, expected, message) {
-  if (!_deepEqual(actual, expected, true)) {
-    fail(actual, expected, message, 'deepStrictEqual', assert.deepStrictEqual);
-  }
-};
-
-function _deepEqual(actual, expected, strict, memos) {
-  // 7.1. All identical values are equivalent, as determined by ===.
-  if (actual === expected) {
-    return true;
-  } else if (isBuffer(actual) && isBuffer(expected)) {
-    return compare(actual, expected) === 0;
-
-  // 7.2. If the expected value is a Date object, the actual value is
-  // equivalent if it is also a Date object that refers to the same time.
-  } else if (util.isDate(actual) && util.isDate(expected)) {
-    return actual.getTime() === expected.getTime();
-
-  // 7.3 If the expected value is a RegExp object, the actual value is
-  // equivalent if it is also a RegExp object with the same source and
-  // properties (`global`, `multiline`, `lastIndex`, `ignoreCase`).
-  } else if (util.isRegExp(actual) && util.isRegExp(expected)) {
-    return actual.source === expected.source &&
-           actual.global === expected.global &&
-           actual.multiline === expected.multiline &&
-           actual.lastIndex === expected.lastIndex &&
-           actual.ignoreCase === expected.ignoreCase;
-
-  // 7.4. Other pairs that do not both pass typeof value == 'object',
-  // equivalence is determined by ==.
-  } else if ((actual === null || typeof actual !== 'object') &&
-             (expected === null || typeof expected !== 'object')) {
-    return strict ? actual === expected : actual == expected;
-
-  // If both values are instances of typed arrays, wrap their underlying
-  // ArrayBuffers in a Buffer each to increase performance
-  // This optimization requires the arrays to have the same type as checked by
-  // Object.prototype.toString (aka pToString). Never perform binary
-  // comparisons for Float*Arrays, though, since e.g. +0 === -0 but their
-  // bit patterns are not identical.
-  } else if (isView(actual) && isView(expected) &&
-             pToString(actual) === pToString(expected) &&
-             !(actual instanceof Float32Array ||
-               actual instanceof Float64Array)) {
-    return compare(new Uint8Array(actual.buffer),
-                   new Uint8Array(expected.buffer)) === 0;
-
-  // 7.5 For all other Object pairs, including Array objects, equivalence is
-  // determined by having the same number of owned properties (as verified
-  // with Object.prototype.hasOwnProperty.call), the same set of keys
-  // (although not necessarily the same order), equivalent values for every
-  // corresponding key, and an identical 'prototype' property. Note: this
-  // accounts for both named and indexed properties on Arrays.
-  } else if (isBuffer(actual) !== isBuffer(expected)) {
-    return false;
-  } else {
-    memos = memos || {actual: [], expected: []};
-
-    var actualIndex = memos.actual.indexOf(actual);
-    if (actualIndex !== -1) {
-      if (actualIndex === memos.expected.indexOf(expected)) {
-        return true;
-      }
-    }
-
-    memos.actual.push(actual);
-    memos.expected.push(expected);
-
-    return objEquiv(actual, expected, strict, memos);
-  }
-}
-
-function isArguments(object) {
-  return Object.prototype.toString.call(object) == '[object Arguments]';
-}
-
-function objEquiv(a, b, strict, actualVisitedObjects) {
-  if (a === null || a === undefined || b === null || b === undefined)
-    return false;
-  // if one is a primitive, the other must be same
-  if (util.isPrimitive(a) || util.isPrimitive(b))
-    return a === b;
-  if (strict && Object.getPrototypeOf(a) !== Object.getPrototypeOf(b))
-    return false;
-  var aIsArgs = isArguments(a);
-  var bIsArgs = isArguments(b);
-  if ((aIsArgs && !bIsArgs) || (!aIsArgs && bIsArgs))
-    return false;
-  if (aIsArgs) {
-    a = pSlice.call(a);
-    b = pSlice.call(b);
-    return _deepEqual(a, b, strict);
-  }
-  var ka = objectKeys(a);
-  var kb = objectKeys(b);
-  var key, i;
-  // having the same number of owned properties (keys incorporates
-  // hasOwnProperty)
-  if (ka.length !== kb.length)
-    return false;
-  //the same set of keys (although not necessarily the same order),
-  ka.sort();
-  kb.sort();
-  //~~~cheap key test
-  for (i = ka.length - 1; i >= 0; i--) {
-    if (ka[i] !== kb[i])
-      return false;
-  }
-  //equivalent values for every corresponding key, and
-  //~~~possibly expensive deep test
-  for (i = ka.length - 1; i >= 0; i--) {
-    key = ka[i];
-    if (!_deepEqual(a[key], b[key], strict, actualVisitedObjects))
-      return false;
-  }
-  return true;
-}
-
-// 8. The non-equivalence assertion tests for any deep inequality.
-// assert.notDeepEqual(actual, expected, message_opt);
-
-assert.notDeepEqual = function notDeepEqual(actual, expected, message) {
-  if (_deepEqual(actual, expected, false)) {
-    fail(actual, expected, message, 'notDeepEqual', assert.notDeepEqual);
-  }
-};
-
-assert.notDeepStrictEqual = notDeepStrictEqual;
-function notDeepStrictEqual(actual, expected, message) {
-  if (_deepEqual(actual, expected, true)) {
-    fail(actual, expected, message, 'notDeepStrictEqual', notDeepStrictEqual);
-  }
-}
-
-
-// 9. The strict equality assertion tests strict equality, as determined by ===.
-// assert.strictEqual(actual, expected, message_opt);
-
-assert.strictEqual = function strictEqual(actual, expected, message) {
-  if (actual !== expected) {
-    fail(actual, expected, message, '===', assert.strictEqual);
-  }
-};
-
-// 10. The strict non-equality assertion tests for strict inequality, as
-// determined by !==.  assert.notStrictEqual(actual, expected, message_opt);
-
-assert.notStrictEqual = function notStrictEqual(actual, expected, message) {
-  if (actual === expected) {
-    fail(actual, expected, message, '!==', assert.notStrictEqual);
-  }
-};
-
-function expectedException(actual, expected) {
-  if (!actual || !expected) {
-    return false;
-  }
-
-  if (Object.prototype.toString.call(expected) == '[object RegExp]') {
-    return expected.test(actual);
-  }
-
-  try {
-    if (actual instanceof expected) {
-      return true;
-    }
-  } catch (e) {
-    // Ignore.  The instanceof check doesn't work for arrow functions.
-  }
-
-  if (Error.isPrototypeOf(expected)) {
-    return false;
-  }
-
-  return expected.call({}, actual) === true;
-}
-
-function _tryBlock(block) {
-  var error;
-  try {
-    block();
-  } catch (e) {
-    error = e;
-  }
-  return error;
-}
-
-function _throws(shouldThrow, block, expected, message) {
-  var actual;
-
-  if (typeof block !== 'function') {
-    throw new TypeError('"block" argument must be a function');
-  }
-
-  if (typeof expected === 'string') {
-    message = expected;
-    expected = null;
-  }
-
-  actual = _tryBlock(block);
-
-  message = (expected && expected.name ? ' (' + expected.name + ').' : '.') +
-            (message ? ' ' + message : '.');
-
-  if (shouldThrow && !actual) {
-    fail(actual, expected, 'Missing expected exception' + message);
-  }
-
-  var userProvidedMessage = typeof message === 'string';
-  var isUnwantedException = !shouldThrow && util.isError(actual);
-  var isUnexpectedException = !shouldThrow && actual && !expected;
-
-  if ((isUnwantedException &&
-      userProvidedMessage &&
-      expectedException(actual, expected)) ||
-      isUnexpectedException) {
-    fail(actual, expected, 'Got unwanted exception' + message);
-  }
-
-  if ((shouldThrow && actual && expected &&
-      !expectedException(actual, expected)) || (!shouldThrow && actual)) {
-    throw actual;
-  }
-}
-
-// 11. Expected to throw an error:
-// assert.throws(block, Error_opt, message_opt);
-
-assert.throws = function(block, /*optional*/error, /*optional*/message) {
-  _throws(true, block, error, message);
-};
-
-// EXTENSION! This is annoying to write outside this module.
-assert.doesNotThrow = function(block, /*optional*/error, /*optional*/message) {
-  _throws(false, block, error, message);
-};
-
-assert.ifError = function(err) { if (err) throw err; };
-
-var objectKeys = Object.keys || function (obj) {
-  var keys = [];
-  for (var key in obj) {
-    if (hasOwn.call(obj, key)) keys.push(key);
-  }
-  return keys;
-};
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"util/":148}],16:[function(require,module,exports){
-'use strict'
-
-exports.byteLength = byteLength
-exports.toByteArray = toByteArray
-exports.fromByteArray = fromByteArray
-
-var lookup = []
-var revLookup = []
-var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array
-
-var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
-for (var i = 0, len = code.length; i < len; ++i) {
-  lookup[i] = code[i]
-  revLookup[code.charCodeAt(i)] = i
-}
-
-revLookup['-'.charCodeAt(0)] = 62
-revLookup['_'.charCodeAt(0)] = 63
-
-function placeHoldersCount (b64) {
-  var len = b64.length
-  if (len % 4 > 0) {
-    throw new Error('Invalid string. Length must be a multiple of 4')
-  }
-
-  // the number of equal signs (place holders)
-  // if there are two placeholders, than the two characters before it
-  // represent one byte
-  // if there is only one, then the three characters before it represent 2 bytes
-  // this is just a cheap hack to not do indexOf twice
-  return b64[len - 2] === '=' ? 2 : b64[len - 1] === '=' ? 1 : 0
-}
-
-function byteLength (b64) {
-  // base64 is 4/3 + up to two characters of the original data
-  return b64.length * 3 / 4 - placeHoldersCount(b64)
-}
-
-function toByteArray (b64) {
-  var i, j, l, tmp, placeHolders, arr
-  var len = b64.length
-  placeHolders = placeHoldersCount(b64)
-
-  arr = new Arr(len * 3 / 4 - placeHolders)
-
-  // if there are placeholders, only get up to the last complete 4 chars
-  l = placeHolders > 0 ? len - 4 : len
-
-  var L = 0
-
-  for (i = 0, j = 0; i < l; i += 4, j += 3) {
-    tmp = (revLookup[b64.charCodeAt(i)] << 18) | (revLookup[b64.charCodeAt(i + 1)] << 12) | (revLookup[b64.charCodeAt(i + 2)] << 6) | revLookup[b64.charCodeAt(i + 3)]
-    arr[L++] = (tmp >> 16) & 0xFF
-    arr[L++] = (tmp >> 8) & 0xFF
-    arr[L++] = tmp & 0xFF
-  }
-
-  if (placeHolders === 2) {
-    tmp = (revLookup[b64.charCodeAt(i)] << 2) | (revLookup[b64.charCodeAt(i + 1)] >> 4)
-    arr[L++] = tmp & 0xFF
-  } else if (placeHolders === 1) {
-    tmp = (revLookup[b64.charCodeAt(i)] << 10) | (revLookup[b64.charCodeAt(i + 1)] << 4) | (revLookup[b64.charCodeAt(i + 2)] >> 2)
-    arr[L++] = (tmp >> 8) & 0xFF
-    arr[L++] = tmp & 0xFF
-  }
-
-  return arr
-}
-
-function tripletToBase64 (num) {
-  return lookup[num >> 18 & 0x3F] + lookup[num >> 12 & 0x3F] + lookup[num >> 6 & 0x3F] + lookup[num & 0x3F]
-}
-
-function encodeChunk (uint8, start, end) {
-  var tmp
-  var output = []
-  for (var i = start; i < end; i += 3) {
-    tmp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2])
-    output.push(tripletToBase64(tmp))
-  }
-  return output.join('')
-}
-
-function fromByteArray (uint8) {
-  var tmp
-  var len = uint8.length
-  var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes
-  var output = ''
-  var parts = []
-  var maxChunkLength = 16383 // must be multiple of 3
-
-  // go through the array every three bytes, we'll deal with trailing stuff later
-  for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
-    parts.push(encodeChunk(uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)))
-  }
-
-  // pad the end with zeros, but make sure to not forget the extra bytes
-  if (extraBytes === 1) {
-    tmp = uint8[len - 1]
-    output += lookup[tmp >> 2]
-    output += lookup[(tmp << 4) & 0x3F]
-    output += '=='
-  } else if (extraBytes === 2) {
-    tmp = (uint8[len - 2] << 8) + (uint8[len - 1])
-    output += lookup[tmp >> 10]
-    output += lookup[(tmp >> 4) & 0x3F]
-    output += lookup[(tmp << 2) & 0x3F]
-    output += '='
-  }
-
-  parts.push(output)
-
-  return parts.join('')
-}
-
-},{}],17:[function(require,module,exports){
-(function (module, exports) {
-  'use strict';
-
-  // Utils
-  function assert (val, msg) {
-    if (!val) throw new Error(msg || 'Assertion failed');
-  }
-
-  // Could use `inherits` module, but don't want to move from single file
-  // architecture yet.
-  function inherits (ctor, superCtor) {
-    ctor.super_ = superCtor;
-    var TempCtor = function () {};
-    TempCtor.prototype = superCtor.prototype;
-    ctor.prototype = new TempCtor();
-    ctor.prototype.constructor = ctor;
-  }
-
-  // BN
-
-  function BN (number, base, endian) {
-    if (BN.isBN(number)) {
-      return number;
-    }
-
-    this.negative = 0;
-    this.words = null;
-    this.length = 0;
-
-    // Reduction context
-    this.red = null;
-
-    if (number !== null) {
-      if (base === 'le' || base === 'be') {
-        endian = base;
-        base = 10;
-      }
-
-      this._init(number || 0, base || 10, endian || 'be');
-    }
-  }
-  if (typeof module === 'object') {
-    module.exports = BN;
-  } else {
-    exports.BN = BN;
-  }
-
-  BN.BN = BN;
-  BN.wordSize = 26;
-
-  var Buffer;
-  try {
-    Buffer = require('buf' + 'fer').Buffer;
-  } catch (e) {
-  }
-
-  BN.isBN = function isBN (num) {
-    if (num instanceof BN) {
-      return true;
-    }
-
-    return num !== null && typeof num === 'object' &&
-      num.constructor.wordSize === BN.wordSize && Array.isArray(num.words);
-  };
-
-  BN.max = function max (left, right) {
-    if (left.cmp(right) > 0) return left;
-    return right;
-  };
-
-  BN.min = function min (left, right) {
-    if (left.cmp(right) < 0) return left;
-    return right;
-  };
-
-  BN.prototype._init = function init (number, base, endian) {
-    if (typeof number === 'number') {
-      return this._initNumber(number, base, endian);
-    }
-
-    if (typeof number === 'object') {
-      return this._initArray(number, base, endian);
-    }
-
-    if (base === 'hex') {
-      base = 16;
-    }
-    assert(base === (base | 0) && base >= 2 && base <= 36);
-
-    number = number.toString().replace(/\s+/g, '');
-    var start = 0;
-    if (number[0] === '-') {
-      start++;
-    }
-
-    if (base === 16) {
-      this._parseHex(number, start);
-    } else {
-      this._parseBase(number, base, start);
-    }
-
-    if (number[0] === '-') {
-      this.negative = 1;
-    }
-
-    this.strip();
-
-    if (endian !== 'le') return;
-
-    this._initArray(this.toArray(), base, endian);
-  };
-
-  BN.prototype._initNumber = function _initNumber (number, base, endian) {
-    if (number < 0) {
-      this.negative = 1;
-      number = -number;
-    }
-    if (number < 0x4000000) {
-      this.words = [ number & 0x3ffffff ];
-      this.length = 1;
-    } else if (number < 0x10000000000000) {
-      this.words = [
-        number & 0x3ffffff,
-        (number / 0x4000000) & 0x3ffffff
-      ];
-      this.length = 2;
-    } else {
-      assert(number < 0x20000000000000); // 2 ^ 53 (unsafe)
-      this.words = [
-        number & 0x3ffffff,
-        (number / 0x4000000) & 0x3ffffff,
-        1
-      ];
-      this.length = 3;
-    }
-
-    if (endian !== 'le') return;
-
-    // Reverse the bytes
-    this._initArray(this.toArray(), base, endian);
-  };
-
-  BN.prototype._initArray = function _initArray (number, base, endian) {
-    // Perhaps a Uint8Array
-    assert(typeof number.length === 'number');
-    if (number.length <= 0) {
-      this.words = [ 0 ];
-      this.length = 1;
-      return this;
-    }
-
-    this.length = Math.ceil(number.length / 3);
-    this.words = new Array(this.length);
-    for (var i = 0; i < this.length; i++) {
-      this.words[i] = 0;
-    }
-
-    var j, w;
-    var off = 0;
-    if (endian === 'be') {
-      for (i = number.length - 1, j = 0; i >= 0; i -= 3) {
-        w = number[i] | (number[i - 1] << 8) | (number[i - 2] << 16);
-        this.words[j] |= (w << off) & 0x3ffffff;
-        this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff;
-        off += 24;
-        if (off >= 26) {
-          off -= 26;
-          j++;
-        }
-      }
-    } else if (endian === 'le') {
-      for (i = 0, j = 0; i < number.length; i += 3) {
-        w = number[i] | (number[i + 1] << 8) | (number[i + 2] << 16);
-        this.words[j] |= (w << off) & 0x3ffffff;
-        this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff;
-        off += 24;
-        if (off >= 26) {
-          off -= 26;
-          j++;
-        }
-      }
-    }
-    return this.strip();
-  };
-
-  function parseHex (str, start, end) {
-    var r = 0;
-    var len = Math.min(str.length, end);
-    for (var i = start; i < len; i++) {
-      var c = str.charCodeAt(i) - 48;
-
-      r <<= 4;
-
-      // 'a' - 'f'
-      if (c >= 49 && c <= 54) {
-        r |= c - 49 + 0xa;
-
-      // 'A' - 'F'
-      } else if (c >= 17 && c <= 22) {
-        r |= c - 17 + 0xa;
-
-      // '0' - '9'
-      } else {
-        r |= c & 0xf;
-      }
-    }
-    return r;
-  }
-
-  BN.prototype._parseHex = function _parseHex (number, start) {
-    // Create possibly bigger array to ensure that it fits the number
-    this.length = Math.ceil((number.length - start) / 6);
-    this.words = new Array(this.length);
-    for (var i = 0; i < this.length; i++) {
-      this.words[i] = 0;
-    }
-
-    var j, w;
-    // Scan 24-bit chunks and add them to the number
-    var off = 0;
-    for (i = number.length - 6, j = 0; i >= start; i -= 6) {
-      w = parseHex(number, i, i + 6);
-      this.words[j] |= (w << off) & 0x3ffffff;
-      // NOTE: `0x3fffff` is intentional here, 26bits max shift + 24bit hex limb
-      this.words[j + 1] |= w >>> (26 - off) & 0x3fffff;
-      off += 24;
-      if (off >= 26) {
-        off -= 26;
-        j++;
-      }
-    }
-    if (i + 6 !== start) {
-      w = parseHex(number, start, i + 6);
-      this.words[j] |= (w << off) & 0x3ffffff;
-      this.words[j + 1] |= w >>> (26 - off) & 0x3fffff;
-    }
-    this.strip();
-  };
-
-  function parseBase (str, start, end, mul) {
-    var r = 0;
-    var len = Math.min(str.length, end);
-    for (var i = start; i < len; i++) {
-      var c = str.charCodeAt(i) - 48;
-
-      r *= mul;
-
-      // 'a'
-      if (c >= 49) {
-        r += c - 49 + 0xa;
-
-      // 'A'
-      } else if (c >= 17) {
-        r += c - 17 + 0xa;
-
-      // '0' - '9'
-      } else {
-        r += c;
-      }
-    }
-    return r;
-  }
-
-  BN.prototype._parseBase = function _parseBase (number, base, start) {
-    // Initialize as zero
-    this.words = [ 0 ];
-    this.length = 1;
-
-    // Find length of limb in base
-    for (var limbLen = 0, limbPow = 1; limbPow <= 0x3ffffff; limbPow *= base) {
-      limbLen++;
-    }
-    limbLen--;
-    limbPow = (limbPow / base) | 0;
-
-    var total = number.length - start;
-    var mod = total % limbLen;
-    var end = Math.min(total, total - mod) + start;
-
-    var word = 0;
-    for (var i = start; i < end; i += limbLen) {
-      word = parseBase(number, i, i + limbLen, base);
-
-      this.imuln(limbPow);
-      if (this.words[0] + word < 0x4000000) {
-        this.words[0] += word;
-      } else {
-        this._iaddn(word);
-      }
-    }
-
-    if (mod !== 0) {
-      var pow = 1;
-      word = parseBase(number, i, number.length, base);
-
-      for (i = 0; i < mod; i++) {
-        pow *= base;
-      }
-
-      this.imuln(pow);
-      if (this.words[0] + word < 0x4000000) {
-        this.words[0] += word;
-      } else {
-        this._iaddn(word);
-      }
-    }
-  };
-
-  BN.prototype.copy = function copy (dest) {
-    dest.words = new Array(this.length);
-    for (var i = 0; i < this.length; i++) {
-      dest.words[i] = this.words[i];
-    }
-    dest.length = this.length;
-    dest.negative = this.negative;
-    dest.red = this.red;
-  };
-
-  BN.prototype.clone = function clone () {
-    var r = new BN(null);
-    this.copy(r);
-    return r;
-  };
-
-  BN.prototype._expand = function _expand (size) {
-    while (this.length < size) {
-      this.words[this.length++] = 0;
-    }
-    return this;
-  };
-
-  // Remove leading `0` from `this`
-  BN.prototype.strip = function strip () {
-    while (this.length > 1 && this.words[this.length - 1] === 0) {
-      this.length--;
-    }
-    return this._normSign();
-  };
-
-  BN.prototype._normSign = function _normSign () {
-    // -0 = 0
-    if (this.length === 1 && this.words[0] === 0) {
-      this.negative = 0;
-    }
-    return this;
-  };
-
-  BN.prototype.inspect = function inspect () {
-    return (this.red ? '<BN-R: ' : '<BN: ') + this.toString(16) + '>';
-  };
-
-  /*
-
-  var zeros = [];
-  var groupSizes = [];
-  var groupBases = [];
-
-  var s = '';
-  var i = -1;
-  while (++i < BN.wordSize) {
-    zeros[i] = s;
-    s += '0';
-  }
-  groupSizes[0] = 0;
-  groupSizes[1] = 0;
-  groupBases[0] = 0;
-  groupBases[1] = 0;
-  var base = 2 - 1;
-  while (++base < 36 + 1) {
-    var groupSize = 0;
-    var groupBase = 1;
-    while (groupBase < (1 << BN.wordSize) / base) {
-      groupBase *= base;
-      groupSize += 1;
-    }
-    groupSizes[base] = groupSize;
-    groupBases[base] = groupBase;
-  }
-
-  */
-
-  var zeros = [
-    '',
-    '0',
-    '00',
-    '000',
-    '0000',
-    '00000',
-    '000000',
-    '0000000',
-    '00000000',
-    '000000000',
-    '0000000000',
-    '00000000000',
-    '000000000000',
-    '0000000000000',
-    '00000000000000',
-    '000000000000000',
-    '0000000000000000',
-    '00000000000000000',
-    '000000000000000000',
-    '0000000000000000000',
-    '00000000000000000000',
-    '000000000000000000000',
-    '0000000000000000000000',
-    '00000000000000000000000',
-    '000000000000000000000000',
-    '0000000000000000000000000'
-  ];
-
-  var groupSizes = [
-    0, 0,
-    25, 16, 12, 11, 10, 9, 8,
-    8, 7, 7, 7, 7, 6, 6,
-    6, 6, 6, 6, 6, 5, 5,
-    5, 5, 5, 5, 5, 5, 5,
-    5, 5, 5, 5, 5, 5, 5
-  ];
-
-  var groupBases = [
-    0, 0,
-    33554432, 43046721, 16777216, 48828125, 60466176, 40353607, 16777216,
-    43046721, 10000000, 19487171, 35831808, 62748517, 7529536, 11390625,
-    16777216, 24137569, 34012224, 47045881, 64000000, 4084101, 5153632,
-    6436343, 7962624, 9765625, 11881376, 14348907, 17210368, 20511149,
-    24300000, 28629151, 33554432, 39135393, 45435424, 52521875, 60466176
-  ];
-
-  BN.prototype.toString = function toString (base, padding) {
-    base = base || 10;
-    padding = padding | 0 || 1;
-
-    var out;
-    if (base === 16 || base === 'hex') {
-      out = '';
-      var off = 0;
-      var carry = 0;
-      for (var i = 0; i < this.length; i++) {
-        var w = this.words[i];
-        var word = (((w << off) | carry) & 0xffffff).toString(16);
-        carry = (w >>> (24 - off)) & 0xffffff;
-        if (carry !== 0 || i !== this.length - 1) {
-          out = zeros[6 - word.length] + word + out;
-        } else {
-          out = word + out;
-        }
-        off += 2;
-        if (off >= 26) {
-          off -= 26;
-          i--;
-        }
-      }
-      if (carry !== 0) {
-        out = carry.toString(16) + out;
-      }
-      while (out.length % padding !== 0) {
-        out = '0' + out;
-      }
-      if (this.negative !== 0) {
-        out = '-' + out;
-      }
-      return out;
-    }
-
-    if (base === (base | 0) && base >= 2 && base <= 36) {
-      // var groupSize = Math.floor(BN.wordSize * Math.LN2 / Math.log(base));
-      var groupSize = groupSizes[base];
-      // var groupBase = Math.pow(base, groupSize);
-      var groupBase = groupBases[base];
-      out = '';
-      var c = this.clone();
-      c.negative = 0;
-      while (!c.isZero()) {
-        var r = c.modn(groupBase).toString(base);
-        c = c.idivn(groupBase);
-
-        if (!c.isZero()) {
-          out = zeros[groupSize - r.length] + r + out;
-        } else {
-          out = r + out;
-        }
-      }
-      if (this.isZero()) {
-        out = '0' + out;
-      }
-      while (out.length % padding !== 0) {
-        out = '0' + out;
-      }
-      if (this.negative !== 0) {
-        out = '-' + out;
-      }
-      return out;
-    }
-
-    assert(false, 'Base should be between 2 and 36');
-  };
-
-  BN.prototype.toNumber = function toNumber () {
-    var ret = this.words[0];
-    if (this.length === 2) {
-      ret += this.words[1] * 0x4000000;
-    } else if (this.length === 3 && this.words[2] === 0x01) {
-      // NOTE: at this stage it is known that the top bit is set
-      ret += 0x10000000000000 + (this.words[1] * 0x4000000);
-    } else if (this.length > 2) {
-      assert(false, 'Number can only safely store up to 53 bits');
-    }
-    return (this.negative !== 0) ? -ret : ret;
-  };
-
-  BN.prototype.toJSON = function toJSON () {
-    return this.toString(16);
-  };
-
-  BN.prototype.toBuffer = function toBuffer (endian, length) {
-    assert(typeof Buffer !== 'undefined');
-    return this.toArrayLike(Buffer, endian, length);
-  };
-
-  BN.prototype.toArray = function toArray (endian, length) {
-    return this.toArrayLike(Array, endian, length);
-  };
-
-  BN.prototype.toArrayLike = function toArrayLike (ArrayType, endian, length) {
-    var byteLength = this.byteLength();
-    var reqLength = length || Math.max(1, byteLength);
-    assert(byteLength <= reqLength, 'byte array longer than desired length');
-    assert(reqLength > 0, 'Requested array length <= 0');
-
-    this.strip();
-    var littleEndian = endian === 'le';
-    var res = new ArrayType(reqLength);
-
-    var b, i;
-    var q = this.clone();
-    if (!littleEndian) {
-      // Assume big-endian
-      for (i = 0; i < reqLength - byteLength; i++) {
-        res[i] = 0;
-      }
-
-      for (i = 0; !q.isZero(); i++) {
-        b = q.andln(0xff);
-        q.iushrn(8);
-
-        res[reqLength - i - 1] = b;
-      }
-    } else {
-      for (i = 0; !q.isZero(); i++) {
-        b = q.andln(0xff);
-        q.iushrn(8);
-
-        res[i] = b;
-      }
-
-      for (; i < reqLength; i++) {
-        res[i] = 0;
-      }
-    }
-
-    return res;
-  };
+    return res;
+  };
 
   if (Math.clz32) {
     BN.prototype._countBits = function _countBits (w) {
@@ -79029,6 +71251,19 @@ bitcoinjs.bitcoin.networks.bitcoin.p2wpkh = {
     wif: 0x80
 };
 
+bitcoinjs.bitcoin.networks.testnet.p2wpkh = {
+    baseNetwork: "testnet",
+    messagePrefix: '\x18Bitcoin Signed Message:\n',
+    bech32: 'tb',
+    bip32: {
+        public: 0x045f1cf6,
+        private: 0x045f18bc
+    },
+    pubKeyHash: 0x6f,
+    scriptHash: 0xc4,
+    wif: 0xef
+};
+
 // p2wpkh in p2sh
 
 bitcoinjs.bitcoin.networks.bitcoin.p2wpkhInP2sh = {
@@ -79060,6 +71295,7 @@ bitcoinjs.bitcoin.networks.testnet.p2wpkhInP2sh = {
 bitcoinjs.bitcoin.networks.litecoin.p2wpkhInP2sh = {
     baseNetwork: "litecoin",
     messagePrefix: '\x19Litecoin Signed Message:\n',
+    bech32: 'ltc',
     bip32: {
         public: 0x01b26ef6,
         private: 0x01b26792
@@ -79069,6 +71305,57 @@ bitcoinjs.bitcoin.networks.litecoin.p2wpkhInP2sh = {
     wif: 0xb0
 };
 
+bitcoinjs.bitcoin.networks.fujicoin.p2wpkh = {
+    baseNetwork: "fujicoin",
+    messagePrefix: '\x19FujiCoin Signed Message:\n',
+    bech32: 'fc',
+    bip32: {
+        public: 0x04b24746,
+        private: 0x04b2430c
+    },
+    pubKeyHash: 0x24,
+    scriptHash: 0x10,
+    wif: 0xa4
+};
+
+bitcoinjs.bitcoin.networks.fujicoin.p2wpkhInP2sh = {
+    baseNetwork: "fujicoin",
+    messagePrefix: '\x19FujiCoin Signed Message:\n',
+    bech32: 'fc',
+    bip32: {
+        public: 0x049d7cb2,
+        private: 0x049d7878
+    },
+    pubKeyHash: 0x24,
+    scriptHash: 0x10,
+    wif: 0xa4
+};
+
+bitcoinjs.bitcoin.networks.vertcoin.p2wpkh = {
+    baseNetwork: "vertcoin",
+    messagePrefix: '\x18Vertcoin Signed Message:\n',
+    bech32: 'vtc',
+    bip32: {
+        public: 0x0488b21e,
+        private: 0x0488ade4
+    },
+    pubKeyHash: 71,
+    scriptHash: 5,
+    wif: 0x80
+};
+
+bitcoinjs.bitcoin.networks.vertcoin.p2wpkhInP2sh = {
+    baseNetwork: "vertcoin",
+    messagePrefix: '\x18Vertcoin Signed Message:\n',
+    bip32: {
+        public: 0x0488b21e,
+        private: 0x0488ade4
+    },
+    pubKeyHash: 71,
+    scriptHash: 5,
+    wif: 0x80
+};
+
 })();
 </script>
         <script>(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.ethUtil = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
@@ -93657,3420 +85944,11871 @@ module.exports = {
       ]
     ]
   }
-};
+};
+
+},{}],54:[function(require,module,exports){
+'use strict';
+
+var utils = exports;
+var BN = require('bn.js');
+
+utils.assert = function assert(val, msg) {
+  if (!val)
+    throw new Error(msg || 'Assertion failed');
+};
+
+function toArray(msg, enc) {
+  if (Array.isArray(msg))
+    return msg.slice();
+  if (!msg)
+    return [];
+  var res = [];
+  if (typeof msg !== 'string') {
+    for (var i = 0; i < msg.length; i++)
+      res[i] = msg[i] | 0;
+    return res;
+  }
+  if (!enc) {
+    for (var i = 0; i < msg.length; i++) {
+      var c = msg.charCodeAt(i);
+      var hi = c >> 8;
+      var lo = c & 0xff;
+      if (hi)
+        res.push(hi, lo);
+      else
+        res.push(lo);
+    }
+  } else if (enc === 'hex') {
+    msg = msg.replace(/[^a-z0-9]+/ig, '');
+    if (msg.length % 2 !== 0)
+      msg = '0' + msg;
+    for (var i = 0; i < msg.length; i += 2)
+      res.push(parseInt(msg[i] + msg[i + 1], 16));
+  }
+  return res;
+}
+utils.toArray = toArray;
+
+function zero2(word) {
+  if (word.length === 1)
+    return '0' + word;
+  else
+    return word;
+}
+utils.zero2 = zero2;
+
+function toHex(msg) {
+  var res = '';
+  for (var i = 0; i < msg.length; i++)
+    res += zero2(msg[i].toString(16));
+  return res;
+}
+utils.toHex = toHex;
+
+utils.encode = function encode(arr, enc) {
+  if (enc === 'hex')
+    return toHex(arr);
+  else
+    return arr;
+};
+
+// Represent num in a w-NAF form
+function getNAF(num, w) {
+  var naf = [];
+  var ws = 1 << (w + 1);
+  var k = num.clone();
+  while (k.cmpn(1) >= 0) {
+    var z;
+    if (k.isOdd()) {
+      var mod = k.andln(ws - 1);
+      if (mod > (ws >> 1) - 1)
+        z = (ws >> 1) - mod;
+      else
+        z = mod;
+      k.isubn(z);
+    } else {
+      z = 0;
+    }
+    naf.push(z);
+
+    // Optimization, shift by word if possible
+    var shift = (k.cmpn(0) !== 0 && k.andln(ws - 1) === 0) ? (w + 1) : 1;
+    for (var i = 1; i < shift; i++)
+      naf.push(0);
+    k.iushrn(shift);
+  }
+
+  return naf;
+}
+utils.getNAF = getNAF;
+
+// Represent k1, k2 in a Joint Sparse Form
+function getJSF(k1, k2) {
+  var jsf = [
+    [],
+    []
+  ];
+
+  k1 = k1.clone();
+  k2 = k2.clone();
+  var d1 = 0;
+  var d2 = 0;
+  while (k1.cmpn(-d1) > 0 || k2.cmpn(-d2) > 0) {
+
+    // First phase
+    var m14 = (k1.andln(3) + d1) & 3;
+    var m24 = (k2.andln(3) + d2) & 3;
+    if (m14 === 3)
+      m14 = -1;
+    if (m24 === 3)
+      m24 = -1;
+    var u1;
+    if ((m14 & 1) === 0) {
+      u1 = 0;
+    } else {
+      var m8 = (k1.andln(7) + d1) & 7;
+      if ((m8 === 3 || m8 === 5) && m24 === 2)
+        u1 = -m14;
+      else
+        u1 = m14;
+    }
+    jsf[0].push(u1);
+
+    var u2;
+    if ((m24 & 1) === 0) {
+      u2 = 0;
+    } else {
+      var m8 = (k2.andln(7) + d2) & 7;
+      if ((m8 === 3 || m8 === 5) && m14 === 2)
+        u2 = -m24;
+      else
+        u2 = m24;
+    }
+    jsf[1].push(u2);
+
+    // Second phase
+    if (2 * d1 === u1 + 1)
+      d1 = 1 - d1;
+    if (2 * d2 === u2 + 1)
+      d2 = 1 - d2;
+    k1.iushrn(1);
+    k2.iushrn(1);
+  }
+
+  return jsf;
+}
+utils.getJSF = getJSF;
+
+function cachedProperty(obj, name, computer) {
+  var key = '_' + name;
+  obj.prototype[name] = function cachedProperty() {
+    return this[key] !== undefined ? this[key] :
+           this[key] = computer.call(this);
+  };
+}
+utils.cachedProperty = cachedProperty;
+
+function parseBytes(bytes) {
+  return typeof bytes === 'string' ? utils.toArray(bytes, 'hex') :
+                                     bytes;
+}
+utils.parseBytes = parseBytes;
+
+function intFromLE(bytes) {
+  return new BN(bytes, 'hex', 'le');
+}
+utils.intFromLE = intFromLE;
+
+
+},{"bn.js":33}],55:[function(require,module,exports){
+module.exports={
+  "_args": [
+    [
+      {
+        "raw": "elliptic@^6.2.3",
+        "scope": null,
+        "escapedName": "elliptic",
+        "name": "elliptic",
+        "rawSpec": "^6.2.3",
+        "spec": ">=6.2.3 <7.0.0",
+        "type": "range"
+      },
+      "/home/user/ethereum/ethereumjs-util/node_modules/secp256k1"
+    ]
+  ],
+  "_from": "elliptic@>=6.2.3 <7.0.0",
+  "_id": "elliptic@6.3.3",
+  "_inCache": true,
+  "_location": "/elliptic",
+  "_nodeVersion": "7.0.0",
+  "_npmOperationalInternal": {
+    "host": "packages-18-east.internal.npmjs.com",
+    "tmp": "tmp/elliptic-6.3.3.tgz_1486422837740_0.10658654430881143"
+  },
+  "_npmUser": {
+    "name": "indutny",
+    "email": "fedor@indutny.com"
+  },
+  "_npmVersion": "3.10.8",
+  "_phantomChildren": {},
+  "_requested": {
+    "raw": "elliptic@^6.2.3",
+    "scope": null,
+    "escapedName": "elliptic",
+    "name": "elliptic",
+    "rawSpec": "^6.2.3",
+    "spec": ">=6.2.3 <7.0.0",
+    "type": "range"
+  },
+  "_requiredBy": [
+    "/browserify-sign",
+    "/create-ecdh",
+    "/secp256k1"
+  ],
+  "_resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.3.3.tgz",
+  "_shasum": "5482d9646d54bcb89fd7d994fc9e2e9568876e3f",
+  "_shrinkwrap": null,
+  "_spec": "elliptic@^6.2.3",
+  "_where": "/home/user/ethereum/ethereumjs-util/node_modules/secp256k1",
+  "author": {
+    "name": "Fedor Indutny",
+    "email": "fedor@indutny.com"
+  },
+  "bugs": {
+    "url": "https://github.com/indutny/elliptic/issues"
+  },
+  "dependencies": {
+    "bn.js": "^4.4.0",
+    "brorand": "^1.0.1",
+    "hash.js": "^1.0.0",
+    "inherits": "^2.0.1"
+  },
+  "description": "EC cryptography",
+  "devDependencies": {
+    "brfs": "^1.4.3",
+    "coveralls": "^2.11.3",
+    "grunt": "^0.4.5",
+    "grunt-browserify": "^5.0.0",
+    "grunt-cli": "^1.2.0",
+    "grunt-contrib-connect": "^1.0.0",
+    "grunt-contrib-copy": "^1.0.0",
+    "grunt-contrib-uglify": "^1.0.1",
+    "grunt-mocha-istanbul": "^3.0.1",
+    "grunt-saucelabs": "^8.6.2",
+    "istanbul": "^0.4.2",
+    "jscs": "^2.9.0",
+    "jshint": "^2.6.0",
+    "mocha": "^2.1.0"
+  },
+  "directories": {},
+  "dist": {
+    "shasum": "5482d9646d54bcb89fd7d994fc9e2e9568876e3f",
+    "tarball": "https://registry.npmjs.org/elliptic/-/elliptic-6.3.3.tgz"
+  },
+  "files": [
+    "lib"
+  ],
+  "gitHead": "63aee8d697e9b7fac37ece24222029117a890a7e",
+  "homepage": "https://github.com/indutny/elliptic",
+  "keywords": [
+    "EC",
+    "Elliptic",
+    "curve",
+    "Cryptography"
+  ],
+  "license": "MIT",
+  "main": "lib/elliptic.js",
+  "maintainers": [
+    {
+      "name": "indutny",
+      "email": "fedor@indutny.com"
+    }
+  ],
+  "name": "elliptic",
+  "optionalDependencies": {},
+  "readme": "ERROR: No README data found!",
+  "repository": {
+    "type": "git",
+    "url": "git+ssh://git@github.com/indutny/elliptic.git"
+  },
+  "scripts": {
+    "jscs": "jscs benchmarks/*.js lib/*.js lib/**/*.js lib/**/**/*.js test/index.js",
+    "jshint": "jscs benchmarks/*.js lib/*.js lib/**/*.js lib/**/**/*.js test/index.js",
+    "lint": "npm run jscs && npm run jshint",
+    "test": "npm run lint && npm run unit",
+    "unit": "istanbul test _mocha --reporter=spec test/index.js",
+    "version": "grunt dist && git add dist/"
+  },
+  "version": "6.3.3"
+}
+
+},{}],56:[function(require,module,exports){
+(function (Buffer){
+'use strict';
+
+var isHexPrefixed = require('is-hex-prefixed');
+var stripHexPrefix = require('strip-hex-prefix');
+
+/**
+ * Pads a `String` to have an even length
+ * @param {String} value
+ * @return {String} output
+ */
+function padToEven(value) {
+  var a = value; // eslint-disable-line
+
+  if (typeof a !== 'string') {
+    throw new Error('[ethjs-util] while padding to even, value must be string, is currently ' + typeof a + ', while padToEven.');
+  }
+
+  if (a.length % 2) {
+    a = '0' + a;
+  }
+
+  return a;
+}
+
+/**
+ * Converts a `Number` into a hex `String`
+ * @param {Number} i
+ * @return {String}
+ */
+function intToHex(i) {
+  var hex = i.toString(16); // eslint-disable-line
+
+  return '0x' + padToEven(hex);
+}
+
+/**
+ * Converts an `Number` to a `Buffer`
+ * @param {Number} i
+ * @return {Buffer}
+ */
+function intToBuffer(i) {
+  var hex = intToHex(i);
+
+  return new Buffer(hex.slice(2), 'hex');
+}
+
+/**
+ * Get the binary size of a string
+ * @param {String} str
+ * @return {Number}
+ */
+function getBinarySize(str) {
+  if (typeof str !== 'string') {
+    throw new Error('[ethjs-util] while getting binary size, method getBinarySize requires input \'str\' to be type String, got \'' + typeof str + '\'.');
+  }
+
+  return Buffer.byteLength(str, 'utf8');
+}
+
+/**
+ * Returns TRUE if the first specified array contains all elements
+ * from the second one. FALSE otherwise.
+ *
+ * @param {array} superset
+ * @param {array} subset
+ *
+ * @returns {boolean}
+ */
+function arrayContainsArray(superset, subset, some) {
+  if (Array.isArray(superset) !== true) {
+    throw new Error('[ethjs-util] method arrayContainsArray requires input \'superset\' to be an array got type \'' + typeof superset + '\'');
+  }
+  if (Array.isArray(subset) !== true) {
+    throw new Error('[ethjs-util] method arrayContainsArray requires input \'subset\' to be an array got type \'' + typeof subset + '\'');
+  }
+
+  return subset[Boolean(some) && 'some' || 'every'](function (value) {
+    return superset.indexOf(value) >= 0;
+  });
+}
+
+/**
+ * Should be called to get utf8 from it's hex representation
+ *
+ * @method toUtf8
+ * @param {String} string in hex
+ * @returns {String} ascii string representation of hex value
+ */
+function toUtf8(hex) {
+  var bufferValue = new Buffer(padToEven(stripHexPrefix(hex).replace(/^0+|0+$/g, '')), 'hex');
+
+  return bufferValue.toString('utf8');
+}
+
+/**
+ * Should be called to get ascii from it's hex representation
+ *
+ * @method toAscii
+ * @param {String} string in hex
+ * @returns {String} ascii string representation of hex value
+ */
+function toAscii(hex) {
+  var str = ''; // eslint-disable-line
+  var i = 0,
+      l = hex.length; // eslint-disable-line
+
+  if (hex.substring(0, 2) === '0x') {
+    i = 2;
+  }
+
+  for (; i < l; i += 2) {
+    var code = parseInt(hex.substr(i, 2), 16);
+    str += String.fromCharCode(code);
+  }
+
+  return str;
+}
+
+/**
+ * Should be called to get hex representation (prefixed by 0x) of utf8 string
+ *
+ * @method fromUtf8
+ * @param {String} string
+ * @param {Number} optional padding
+ * @returns {String} hex representation of input string
+ */
+function fromUtf8(stringValue) {
+  var str = new Buffer(stringValue, 'utf8');
+
+  return '0x' + padToEven(str.toString('hex')).replace(/^0+|0+$/g, '');
+}
+
+/**
+ * Should be called to get hex representation (prefixed by 0x) of ascii string
+ *
+ * @method fromAscii
+ * @param {String} string
+ * @param {Number} optional padding
+ * @returns {String} hex representation of input string
+ */
+function fromAscii(stringValue) {
+  var hex = ''; // eslint-disable-line
+  for (var i = 0; i < stringValue.length; i++) {
+    // eslint-disable-line
+    var code = stringValue.charCodeAt(i);
+    var n = code.toString(16);
+    hex += n.length < 2 ? '0' + n : n;
+  }
+
+  return '0x' + hex;
+}
+
+/**
+ * getKeys([{a: 1, b: 2}, {a: 3, b: 4}], 'a') => [1, 3]
+ *
+ * @method getKeys get specific key from inner object array of objects
+ * @param {String} params
+ * @param {String} key
+ * @param {Boolean} allowEmpty
+ * @returns {Array} output just a simple array of output keys
+ */
+function getKeys(params, key, allowEmpty) {
+  if (!Array.isArray(params)) {
+    throw new Error('[ethjs-util] method getKeys expecting type Array as \'params\' input, got \'' + typeof params + '\'');
+  }
+  if (typeof key !== 'string') {
+    throw new Error('[ethjs-util] method getKeys expecting type String for input \'key\' got \'' + typeof key + '\'.');
+  }
+
+  var result = []; // eslint-disable-line
+
+  for (var i = 0; i < params.length; i++) {
+    // eslint-disable-line
+    var value = params[i][key]; // eslint-disable-line
+    if (allowEmpty && !value) {
+      value = '';
+    } else if (typeof value !== 'string') {
+      throw new Error('invalid abi');
+    }
+    result.push(value);
+  }
+
+  return result;
+}
+
+/**
+ * Is the string a hex string.
+ *
+ * @method check if string is hex string of specific length
+ * @param {String} value
+ * @param {Number} length
+ * @returns {Boolean} output the string is a hex string
+ */
+function isHexString(value, length) {
+  if (typeof value !== 'string' || !value.match(/^0x[0-9A-Fa-f]*$/)) {
+    return false;
+  }
+
+  if (length && value.length !== 2 + 2 * length) {
+    return false;
+  }
+
+  return true;
+}
+
+module.exports = {
+  arrayContainsArray: arrayContainsArray,
+  intToBuffer: intToBuffer,
+  getBinarySize: getBinarySize,
+  isHexPrefixed: isHexPrefixed,
+  stripHexPrefix: stripHexPrefix,
+  padToEven: padToEven,
+  intToHex: intToHex,
+  fromAscii: fromAscii,
+  fromUtf8: fromUtf8,
+  toAscii: toAscii,
+  toUtf8: toUtf8,
+  getKeys: getKeys,
+  isHexString: isHexString
+};
+}).call(this,require("buffer").Buffer)
+},{"buffer":5,"is-hex-prefixed":64,"strip-hex-prefix":87}],57:[function(require,module,exports){
+var hash = exports;
+
+hash.utils = require('./hash/utils');
+hash.common = require('./hash/common');
+hash.sha = require('./hash/sha');
+hash.ripemd = require('./hash/ripemd');
+hash.hmac = require('./hash/hmac');
+
+// Proxy hash functions to the main object
+hash.sha1 = hash.sha.sha1;
+hash.sha256 = hash.sha.sha256;
+hash.sha224 = hash.sha.sha224;
+hash.sha384 = hash.sha.sha384;
+hash.sha512 = hash.sha.sha512;
+hash.ripemd160 = hash.ripemd.ripemd160;
+
+},{"./hash/common":58,"./hash/hmac":59,"./hash/ripemd":60,"./hash/sha":61,"./hash/utils":62}],58:[function(require,module,exports){
+var hash = require('../hash');
+var utils = hash.utils;
+var assert = utils.assert;
+
+function BlockHash() {
+  this.pending = null;
+  this.pendingTotal = 0;
+  this.blockSize = this.constructor.blockSize;
+  this.outSize = this.constructor.outSize;
+  this.hmacStrength = this.constructor.hmacStrength;
+  this.padLength = this.constructor.padLength / 8;
+  this.endian = 'big';
+
+  this._delta8 = this.blockSize / 8;
+  this._delta32 = this.blockSize / 32;
+}
+exports.BlockHash = BlockHash;
+
+BlockHash.prototype.update = function update(msg, enc) {
+  // Convert message to array, pad it, and join into 32bit blocks
+  msg = utils.toArray(msg, enc);
+  if (!this.pending)
+    this.pending = msg;
+  else
+    this.pending = this.pending.concat(msg);
+  this.pendingTotal += msg.length;
+
+  // Enough data, try updating
+  if (this.pending.length >= this._delta8) {
+    msg = this.pending;
+
+    // Process pending data in blocks
+    var r = msg.length % this._delta8;
+    this.pending = msg.slice(msg.length - r, msg.length);
+    if (this.pending.length === 0)
+      this.pending = null;
+
+    msg = utils.join32(msg, 0, msg.length - r, this.endian);
+    for (var i = 0; i < msg.length; i += this._delta32)
+      this._update(msg, i, i + this._delta32);
+  }
+
+  return this;
+};
+
+BlockHash.prototype.digest = function digest(enc) {
+  this.update(this._pad());
+  assert(this.pending === null);
+
+  return this._digest(enc);
+};
+
+BlockHash.prototype._pad = function pad() {
+  var len = this.pendingTotal;
+  var bytes = this._delta8;
+  var k = bytes - ((len + this.padLength) % bytes);
+  var res = new Array(k + this.padLength);
+  res[0] = 0x80;
+  for (var i = 1; i < k; i++)
+    res[i] = 0;
+
+  // Append length
+  len <<= 3;
+  if (this.endian === 'big') {
+    for (var t = 8; t < this.padLength; t++)
+      res[i++] = 0;
+
+    res[i++] = 0;
+    res[i++] = 0;
+    res[i++] = 0;
+    res[i++] = 0;
+    res[i++] = (len >>> 24) & 0xff;
+    res[i++] = (len >>> 16) & 0xff;
+    res[i++] = (len >>> 8) & 0xff;
+    res[i++] = len & 0xff;
+  } else {
+    res[i++] = len & 0xff;
+    res[i++] = (len >>> 8) & 0xff;
+    res[i++] = (len >>> 16) & 0xff;
+    res[i++] = (len >>> 24) & 0xff;
+    res[i++] = 0;
+    res[i++] = 0;
+    res[i++] = 0;
+    res[i++] = 0;
+
+    for (var t = 8; t < this.padLength; t++)
+      res[i++] = 0;
+  }
+
+  return res;
+};
+
+},{"../hash":57}],59:[function(require,module,exports){
+var hmac = exports;
+
+var hash = require('../hash');
+var utils = hash.utils;
+var assert = utils.assert;
+
+function Hmac(hash, key, enc) {
+  if (!(this instanceof Hmac))
+    return new Hmac(hash, key, enc);
+  this.Hash = hash;
+  this.blockSize = hash.blockSize / 8;
+  this.outSize = hash.outSize / 8;
+  this.inner = null;
+  this.outer = null;
+
+  this._init(utils.toArray(key, enc));
+}
+module.exports = Hmac;
+
+Hmac.prototype._init = function init(key) {
+  // Shorten key, if needed
+  if (key.length > this.blockSize)
+    key = new this.Hash().update(key).digest();
+  assert(key.length <= this.blockSize);
+
+  // Add padding to key
+  for (var i = key.length; i < this.blockSize; i++)
+    key.push(0);
+
+  for (var i = 0; i < key.length; i++)
+    key[i] ^= 0x36;
+  this.inner = new this.Hash().update(key);
+
+  // 0x36 ^ 0x5c = 0x6a
+  for (var i = 0; i < key.length; i++)
+    key[i] ^= 0x6a;
+  this.outer = new this.Hash().update(key);
+};
+
+Hmac.prototype.update = function update(msg, enc) {
+  this.inner.update(msg, enc);
+  return this;
+};
+
+Hmac.prototype.digest = function digest(enc) {
+  this.outer.update(this.inner.digest());
+  return this.outer.digest(enc);
+};
+
+},{"../hash":57}],60:[function(require,module,exports){
+var hash = require('../hash');
+var utils = hash.utils;
+
+var rotl32 = utils.rotl32;
+var sum32 = utils.sum32;
+var sum32_3 = utils.sum32_3;
+var sum32_4 = utils.sum32_4;
+var BlockHash = hash.common.BlockHash;
+
+function RIPEMD160() {
+  if (!(this instanceof RIPEMD160))
+    return new RIPEMD160();
+
+  BlockHash.call(this);
+
+  this.h = [ 0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0 ];
+  this.endian = 'little';
+}
+utils.inherits(RIPEMD160, BlockHash);
+exports.ripemd160 = RIPEMD160;
+
+RIPEMD160.blockSize = 512;
+RIPEMD160.outSize = 160;
+RIPEMD160.hmacStrength = 192;
+RIPEMD160.padLength = 64;
+
+RIPEMD160.prototype._update = function update(msg, start) {
+  var A = this.h[0];
+  var B = this.h[1];
+  var C = this.h[2];
+  var D = this.h[3];
+  var E = this.h[4];
+  var Ah = A;
+  var Bh = B;
+  var Ch = C;
+  var Dh = D;
+  var Eh = E;
+  for (var j = 0; j < 80; j++) {
+    var T = sum32(
+      rotl32(
+        sum32_4(A, f(j, B, C, D), msg[r[j] + start], K(j)),
+        s[j]),
+      E);
+    A = E;
+    E = D;
+    D = rotl32(C, 10);
+    C = B;
+    B = T;
+    T = sum32(
+      rotl32(
+        sum32_4(Ah, f(79 - j, Bh, Ch, Dh), msg[rh[j] + start], Kh(j)),
+        sh[j]),
+      Eh);
+    Ah = Eh;
+    Eh = Dh;
+    Dh = rotl32(Ch, 10);
+    Ch = Bh;
+    Bh = T;
+  }
+  T = sum32_3(this.h[1], C, Dh);
+  this.h[1] = sum32_3(this.h[2], D, Eh);
+  this.h[2] = sum32_3(this.h[3], E, Ah);
+  this.h[3] = sum32_3(this.h[4], A, Bh);
+  this.h[4] = sum32_3(this.h[0], B, Ch);
+  this.h[0] = T;
+};
+
+RIPEMD160.prototype._digest = function digest(enc) {
+  if (enc === 'hex')
+    return utils.toHex32(this.h, 'little');
+  else
+    return utils.split32(this.h, 'little');
+};
+
+function f(j, x, y, z) {
+  if (j <= 15)
+    return x ^ y ^ z;
+  else if (j <= 31)
+    return (x & y) | ((~x) & z);
+  else if (j <= 47)
+    return (x | (~y)) ^ z;
+  else if (j <= 63)
+    return (x & z) | (y & (~z));
+  else
+    return x ^ (y | (~z));
+}
+
+function K(j) {
+  if (j <= 15)
+    return 0x00000000;
+  else if (j <= 31)
+    return 0x5a827999;
+  else if (j <= 47)
+    return 0x6ed9eba1;
+  else if (j <= 63)
+    return 0x8f1bbcdc;
+  else
+    return 0xa953fd4e;
+}
+
+function Kh(j) {
+  if (j <= 15)
+    return 0x50a28be6;
+  else if (j <= 31)
+    return 0x5c4dd124;
+  else if (j <= 47)
+    return 0x6d703ef3;
+  else if (j <= 63)
+    return 0x7a6d76e9;
+  else
+    return 0x00000000;
+}
+
+var r = [
+  0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
+  7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8,
+  3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12,
+  1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2,
+  4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13
+];
+
+var rh = [
+  5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12,
+  6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2,
+  15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13,
+  8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14,
+  12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11
+];
+
+var s = [
+  11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8,
+  7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12,
+  11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5,
+  11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12,
+  9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6
+];
+
+var sh = [
+  8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6,
+  9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11,
+  9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5,
+  15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8,
+  8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11
+];
+
+},{"../hash":57}],61:[function(require,module,exports){
+var hash = require('../hash');
+var utils = hash.utils;
+var assert = utils.assert;
+
+var rotr32 = utils.rotr32;
+var rotl32 = utils.rotl32;
+var sum32 = utils.sum32;
+var sum32_4 = utils.sum32_4;
+var sum32_5 = utils.sum32_5;
+var rotr64_hi = utils.rotr64_hi;
+var rotr64_lo = utils.rotr64_lo;
+var shr64_hi = utils.shr64_hi;
+var shr64_lo = utils.shr64_lo;
+var sum64 = utils.sum64;
+var sum64_hi = utils.sum64_hi;
+var sum64_lo = utils.sum64_lo;
+var sum64_4_hi = utils.sum64_4_hi;
+var sum64_4_lo = utils.sum64_4_lo;
+var sum64_5_hi = utils.sum64_5_hi;
+var sum64_5_lo = utils.sum64_5_lo;
+var BlockHash = hash.common.BlockHash;
+
+var sha256_K = [
+  0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
+  0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
+  0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
+  0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
+  0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
+  0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
+  0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
+  0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
+  0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
+  0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
+  0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
+  0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
+  0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
+  0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
+  0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
+  0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
+];
+
+var sha512_K = [
+  0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd,
+  0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc,
+  0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019,
+  0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118,
+  0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe,
+  0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2,
+  0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1,
+  0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694,
+  0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3,
+  0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65,
+  0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483,
+  0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5,
+  0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210,
+  0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4,
+  0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725,
+  0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70,
+  0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926,
+  0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df,
+  0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8,
+  0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b,
+  0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001,
+  0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30,
+  0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910,
+  0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8,
+  0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53,
+  0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8,
+  0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb,
+  0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3,
+  0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60,
+  0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec,
+  0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9,
+  0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b,
+  0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207,
+  0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178,
+  0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6,
+  0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b,
+  0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493,
+  0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c,
+  0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a,
+  0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817
+];
+
+var sha1_K = [
+  0x5A827999, 0x6ED9EBA1,
+  0x8F1BBCDC, 0xCA62C1D6
+];
+
+function SHA256() {
+  if (!(this instanceof SHA256))
+    return new SHA256();
+
+  BlockHash.call(this);
+  this.h = [ 0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a,
+             0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19 ];
+  this.k = sha256_K;
+  this.W = new Array(64);
+}
+utils.inherits(SHA256, BlockHash);
+exports.sha256 = SHA256;
+
+SHA256.blockSize = 512;
+SHA256.outSize = 256;
+SHA256.hmacStrength = 192;
+SHA256.padLength = 64;
+
+SHA256.prototype._update = function _update(msg, start) {
+  var W = this.W;
+
+  for (var i = 0; i < 16; i++)
+    W[i] = msg[start + i];
+  for (; i < W.length; i++)
+    W[i] = sum32_4(g1_256(W[i - 2]), W[i - 7], g0_256(W[i - 15]), W[i - 16]);
+
+  var a = this.h[0];
+  var b = this.h[1];
+  var c = this.h[2];
+  var d = this.h[3];
+  var e = this.h[4];
+  var f = this.h[5];
+  var g = this.h[6];
+  var h = this.h[7];
+
+  assert(this.k.length === W.length);
+  for (var i = 0; i < W.length; i++) {
+    var T1 = sum32_5(h, s1_256(e), ch32(e, f, g), this.k[i], W[i]);
+    var T2 = sum32(s0_256(a), maj32(a, b, c));
+    h = g;
+    g = f;
+    f = e;
+    e = sum32(d, T1);
+    d = c;
+    c = b;
+    b = a;
+    a = sum32(T1, T2);
+  }
+
+  this.h[0] = sum32(this.h[0], a);
+  this.h[1] = sum32(this.h[1], b);
+  this.h[2] = sum32(this.h[2], c);
+  this.h[3] = sum32(this.h[3], d);
+  this.h[4] = sum32(this.h[4], e);
+  this.h[5] = sum32(this.h[5], f);
+  this.h[6] = sum32(this.h[6], g);
+  this.h[7] = sum32(this.h[7], h);
+};
+
+SHA256.prototype._digest = function digest(enc) {
+  if (enc === 'hex')
+    return utils.toHex32(this.h, 'big');
+  else
+    return utils.split32(this.h, 'big');
+};
+
+function SHA224() {
+  if (!(this instanceof SHA224))
+    return new SHA224();
+
+  SHA256.call(this);
+  this.h = [ 0xc1059ed8, 0x367cd507, 0x3070dd17, 0xf70e5939,
+             0xffc00b31, 0x68581511, 0x64f98fa7, 0xbefa4fa4 ];
+}
+utils.inherits(SHA224, SHA256);
+exports.sha224 = SHA224;
+
+SHA224.blockSize = 512;
+SHA224.outSize = 224;
+SHA224.hmacStrength = 192;
+SHA224.padLength = 64;
+
+SHA224.prototype._digest = function digest(enc) {
+  // Just truncate output
+  if (enc === 'hex')
+    return utils.toHex32(this.h.slice(0, 7), 'big');
+  else
+    return utils.split32(this.h.slice(0, 7), 'big');
+};
+
+function SHA512() {
+  if (!(this instanceof SHA512))
+    return new SHA512();
+
+  BlockHash.call(this);
+  this.h = [ 0x6a09e667, 0xf3bcc908,
+             0xbb67ae85, 0x84caa73b,
+             0x3c6ef372, 0xfe94f82b,
+             0xa54ff53a, 0x5f1d36f1,
+             0x510e527f, 0xade682d1,
+             0x9b05688c, 0x2b3e6c1f,
+             0x1f83d9ab, 0xfb41bd6b,
+             0x5be0cd19, 0x137e2179 ];
+  this.k = sha512_K;
+  this.W = new Array(160);
+}
+utils.inherits(SHA512, BlockHash);
+exports.sha512 = SHA512;
+
+SHA512.blockSize = 1024;
+SHA512.outSize = 512;
+SHA512.hmacStrength = 192;
+SHA512.padLength = 128;
+
+SHA512.prototype._prepareBlock = function _prepareBlock(msg, start) {
+  var W = this.W;
+
+  // 32 x 32bit words
+  for (var i = 0; i < 32; i++)
+    W[i] = msg[start + i];
+  for (; i < W.length; i += 2) {
+    var c0_hi = g1_512_hi(W[i - 4], W[i - 3]);  // i - 2
+    var c0_lo = g1_512_lo(W[i - 4], W[i - 3]);
+    var c1_hi = W[i - 14];  // i - 7
+    var c1_lo = W[i - 13];
+    var c2_hi = g0_512_hi(W[i - 30], W[i - 29]);  // i - 15
+    var c2_lo = g0_512_lo(W[i - 30], W[i - 29]);
+    var c3_hi = W[i - 32];  // i - 16
+    var c3_lo = W[i - 31];
+
+    W[i] = sum64_4_hi(c0_hi, c0_lo,
+                      c1_hi, c1_lo,
+                      c2_hi, c2_lo,
+                      c3_hi, c3_lo);
+    W[i + 1] = sum64_4_lo(c0_hi, c0_lo,
+                          c1_hi, c1_lo,
+                          c2_hi, c2_lo,
+                          c3_hi, c3_lo);
+  }
+};
+
+SHA512.prototype._update = function _update(msg, start) {
+  this._prepareBlock(msg, start);
+
+  var W = this.W;
+
+  var ah = this.h[0];
+  var al = this.h[1];
+  var bh = this.h[2];
+  var bl = this.h[3];
+  var ch = this.h[4];
+  var cl = this.h[5];
+  var dh = this.h[6];
+  var dl = this.h[7];
+  var eh = this.h[8];
+  var el = this.h[9];
+  var fh = this.h[10];
+  var fl = this.h[11];
+  var gh = this.h[12];
+  var gl = this.h[13];
+  var hh = this.h[14];
+  var hl = this.h[15];
+
+  assert(this.k.length === W.length);
+  for (var i = 0; i < W.length; i += 2) {
+    var c0_hi = hh;
+    var c0_lo = hl;
+    var c1_hi = s1_512_hi(eh, el);
+    var c1_lo = s1_512_lo(eh, el);
+    var c2_hi = ch64_hi(eh, el, fh, fl, gh, gl);
+    var c2_lo = ch64_lo(eh, el, fh, fl, gh, gl);
+    var c3_hi = this.k[i];
+    var c3_lo = this.k[i + 1];
+    var c4_hi = W[i];
+    var c4_lo = W[i + 1];
+
+    var T1_hi = sum64_5_hi(c0_hi, c0_lo,
+                           c1_hi, c1_lo,
+                           c2_hi, c2_lo,
+                           c3_hi, c3_lo,
+                           c4_hi, c4_lo);
+    var T1_lo = sum64_5_lo(c0_hi, c0_lo,
+                           c1_hi, c1_lo,
+                           c2_hi, c2_lo,
+                           c3_hi, c3_lo,
+                           c4_hi, c4_lo);
+
+    var c0_hi = s0_512_hi(ah, al);
+    var c0_lo = s0_512_lo(ah, al);
+    var c1_hi = maj64_hi(ah, al, bh, bl, ch, cl);
+    var c1_lo = maj64_lo(ah, al, bh, bl, ch, cl);
+
+    var T2_hi = sum64_hi(c0_hi, c0_lo, c1_hi, c1_lo);
+    var T2_lo = sum64_lo(c0_hi, c0_lo, c1_hi, c1_lo);
+
+    hh = gh;
+    hl = gl;
+
+    gh = fh;
+    gl = fl;
+
+    fh = eh;
+    fl = el;
+
+    eh = sum64_hi(dh, dl, T1_hi, T1_lo);
+    el = sum64_lo(dl, dl, T1_hi, T1_lo);
+
+    dh = ch;
+    dl = cl;
+
+    ch = bh;
+    cl = bl;
+
+    bh = ah;
+    bl = al;
+
+    ah = sum64_hi(T1_hi, T1_lo, T2_hi, T2_lo);
+    al = sum64_lo(T1_hi, T1_lo, T2_hi, T2_lo);
+  }
+
+  sum64(this.h, 0, ah, al);
+  sum64(this.h, 2, bh, bl);
+  sum64(this.h, 4, ch, cl);
+  sum64(this.h, 6, dh, dl);
+  sum64(this.h, 8, eh, el);
+  sum64(this.h, 10, fh, fl);
+  sum64(this.h, 12, gh, gl);
+  sum64(this.h, 14, hh, hl);
+};
+
+SHA512.prototype._digest = function digest(enc) {
+  if (enc === 'hex')
+    return utils.toHex32(this.h, 'big');
+  else
+    return utils.split32(this.h, 'big');
+};
+
+function SHA384() {
+  if (!(this instanceof SHA384))
+    return new SHA384();
+
+  SHA512.call(this);
+  this.h = [ 0xcbbb9d5d, 0xc1059ed8,
+             0x629a292a, 0x367cd507,
+             0x9159015a, 0x3070dd17,
+             0x152fecd8, 0xf70e5939,
+             0x67332667, 0xffc00b31,
+             0x8eb44a87, 0x68581511,
+             0xdb0c2e0d, 0x64f98fa7,
+             0x47b5481d, 0xbefa4fa4 ];
+}
+utils.inherits(SHA384, SHA512);
+exports.sha384 = SHA384;
+
+SHA384.blockSize = 1024;
+SHA384.outSize = 384;
+SHA384.hmacStrength = 192;
+SHA384.padLength = 128;
+
+SHA384.prototype._digest = function digest(enc) {
+  if (enc === 'hex')
+    return utils.toHex32(this.h.slice(0, 12), 'big');
+  else
+    return utils.split32(this.h.slice(0, 12), 'big');
+};
+
+function SHA1() {
+  if (!(this instanceof SHA1))
+    return new SHA1();
+
+  BlockHash.call(this);
+  this.h = [ 0x67452301, 0xefcdab89, 0x98badcfe,
+             0x10325476, 0xc3d2e1f0 ];
+  this.W = new Array(80);
+}
+
+utils.inherits(SHA1, BlockHash);
+exports.sha1 = SHA1;
+
+SHA1.blockSize = 512;
+SHA1.outSize = 160;
+SHA1.hmacStrength = 80;
+SHA1.padLength = 64;
+
+SHA1.prototype._update = function _update(msg, start) {
+  var W = this.W;
+
+  for (var i = 0; i < 16; i++)
+    W[i] = msg[start + i];
+
+  for(; i < W.length; i++)
+    W[i] = rotl32(W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16], 1);
+
+  var a = this.h[0];
+  var b = this.h[1];
+  var c = this.h[2];
+  var d = this.h[3];
+  var e = this.h[4];
+
+  for (var i = 0; i < W.length; i++) {
+    var s = ~~(i / 20);
+    var t = sum32_5(rotl32(a, 5), ft_1(s, b, c, d), e, W[i], sha1_K[s]);
+    e = d;
+    d = c;
+    c = rotl32(b, 30);
+    b = a;
+    a = t;
+  }
+
+  this.h[0] = sum32(this.h[0], a);
+  this.h[1] = sum32(this.h[1], b);
+  this.h[2] = sum32(this.h[2], c);
+  this.h[3] = sum32(this.h[3], d);
+  this.h[4] = sum32(this.h[4], e);
+};
+
+SHA1.prototype._digest = function digest(enc) {
+  if (enc === 'hex')
+    return utils.toHex32(this.h, 'big');
+  else
+    return utils.split32(this.h, 'big');
+};
+
+function ch32(x, y, z) {
+  return (x & y) ^ ((~x) & z);
+}
+
+function maj32(x, y, z) {
+  return (x & y) ^ (x & z) ^ (y & z);
+}
+
+function p32(x, y, z) {
+  return x ^ y ^ z;
+}
+
+function s0_256(x) {
+  return rotr32(x, 2) ^ rotr32(x, 13) ^ rotr32(x, 22);
+}
+
+function s1_256(x) {
+  return rotr32(x, 6) ^ rotr32(x, 11) ^ rotr32(x, 25);
+}
+
+function g0_256(x) {
+  return rotr32(x, 7) ^ rotr32(x, 18) ^ (x >>> 3);
+}
+
+function g1_256(x) {
+  return rotr32(x, 17) ^ rotr32(x, 19) ^ (x >>> 10);
+}
+
+function ft_1(s, x, y, z) {
+  if (s === 0)
+    return ch32(x, y, z);
+  if (s === 1 || s === 3)
+    return p32(x, y, z);
+  if (s === 2)
+    return maj32(x, y, z);
+}
+
+function ch64_hi(xh, xl, yh, yl, zh, zl) {
+  var r = (xh & yh) ^ ((~xh) & zh);
+  if (r < 0)
+    r += 0x100000000;
+  return r;
+}
+
+function ch64_lo(xh, xl, yh, yl, zh, zl) {
+  var r = (xl & yl) ^ ((~xl) & zl);
+  if (r < 0)
+    r += 0x100000000;
+  return r;
+}
+
+function maj64_hi(xh, xl, yh, yl, zh, zl) {
+  var r = (xh & yh) ^ (xh & zh) ^ (yh & zh);
+  if (r < 0)
+    r += 0x100000000;
+  return r;
+}
+
+function maj64_lo(xh, xl, yh, yl, zh, zl) {
+  var r = (xl & yl) ^ (xl & zl) ^ (yl & zl);
+  if (r < 0)
+    r += 0x100000000;
+  return r;
+}
+
+function s0_512_hi(xh, xl) {
+  var c0_hi = rotr64_hi(xh, xl, 28);
+  var c1_hi = rotr64_hi(xl, xh, 2);  // 34
+  var c2_hi = rotr64_hi(xl, xh, 7);  // 39
+
+  var r = c0_hi ^ c1_hi ^ c2_hi;
+  if (r < 0)
+    r += 0x100000000;
+  return r;
+}
+
+function s0_512_lo(xh, xl) {
+  var c0_lo = rotr64_lo(xh, xl, 28);
+  var c1_lo = rotr64_lo(xl, xh, 2);  // 34
+  var c2_lo = rotr64_lo(xl, xh, 7);  // 39
+
+  var r = c0_lo ^ c1_lo ^ c2_lo;
+  if (r < 0)
+    r += 0x100000000;
+  return r;
+}
+
+function s1_512_hi(xh, xl) {
+  var c0_hi = rotr64_hi(xh, xl, 14);
+  var c1_hi = rotr64_hi(xh, xl, 18);
+  var c2_hi = rotr64_hi(xl, xh, 9);  // 41
+
+  var r = c0_hi ^ c1_hi ^ c2_hi;
+  if (r < 0)
+    r += 0x100000000;
+  return r;
+}
+
+function s1_512_lo(xh, xl) {
+  var c0_lo = rotr64_lo(xh, xl, 14);
+  var c1_lo = rotr64_lo(xh, xl, 18);
+  var c2_lo = rotr64_lo(xl, xh, 9);  // 41
+
+  var r = c0_lo ^ c1_lo ^ c2_lo;
+  if (r < 0)
+    r += 0x100000000;
+  return r;
+}
+
+function g0_512_hi(xh, xl) {
+  var c0_hi = rotr64_hi(xh, xl, 1);
+  var c1_hi = rotr64_hi(xh, xl, 8);
+  var c2_hi = shr64_hi(xh, xl, 7);
+
+  var r = c0_hi ^ c1_hi ^ c2_hi;
+  if (r < 0)
+    r += 0x100000000;
+  return r;
+}
+
+function g0_512_lo(xh, xl) {
+  var c0_lo = rotr64_lo(xh, xl, 1);
+  var c1_lo = rotr64_lo(xh, xl, 8);
+  var c2_lo = shr64_lo(xh, xl, 7);
+
+  var r = c0_lo ^ c1_lo ^ c2_lo;
+  if (r < 0)
+    r += 0x100000000;
+  return r;
+}
+
+function g1_512_hi(xh, xl) {
+  var c0_hi = rotr64_hi(xh, xl, 19);
+  var c1_hi = rotr64_hi(xl, xh, 29);  // 61
+  var c2_hi = shr64_hi(xh, xl, 6);
+
+  var r = c0_hi ^ c1_hi ^ c2_hi;
+  if (r < 0)
+    r += 0x100000000;
+  return r;
+}
+
+function g1_512_lo(xh, xl) {
+  var c0_lo = rotr64_lo(xh, xl, 19);
+  var c1_lo = rotr64_lo(xl, xh, 29);  // 61
+  var c2_lo = shr64_lo(xh, xl, 6);
+
+  var r = c0_lo ^ c1_lo ^ c2_lo;
+  if (r < 0)
+    r += 0x100000000;
+  return r;
+}
+
+},{"../hash":57}],62:[function(require,module,exports){
+var utils = exports;
+var inherits = require('inherits');
+
+function toArray(msg, enc) {
+  if (Array.isArray(msg))
+    return msg.slice();
+  if (!msg)
+    return [];
+  var res = [];
+  if (typeof msg === 'string') {
+    if (!enc) {
+      for (var i = 0; i < msg.length; i++) {
+        var c = msg.charCodeAt(i);
+        var hi = c >> 8;
+        var lo = c & 0xff;
+        if (hi)
+          res.push(hi, lo);
+        else
+          res.push(lo);
+      }
+    } else if (enc === 'hex') {
+      msg = msg.replace(/[^a-z0-9]+/ig, '');
+      if (msg.length % 2 !== 0)
+        msg = '0' + msg;
+      for (var i = 0; i < msg.length; i += 2)
+        res.push(parseInt(msg[i] + msg[i + 1], 16));
+    }
+  } else {
+    for (var i = 0; i < msg.length; i++)
+      res[i] = msg[i] | 0;
+  }
+  return res;
+}
+utils.toArray = toArray;
+
+function toHex(msg) {
+  var res = '';
+  for (var i = 0; i < msg.length; i++)
+    res += zero2(msg[i].toString(16));
+  return res;
+}
+utils.toHex = toHex;
+
+function htonl(w) {
+  var res = (w >>> 24) |
+            ((w >>> 8) & 0xff00) |
+            ((w << 8) & 0xff0000) |
+            ((w & 0xff) << 24);
+  return res >>> 0;
+}
+utils.htonl = htonl;
+
+function toHex32(msg, endian) {
+  var res = '';
+  for (var i = 0; i < msg.length; i++) {
+    var w = msg[i];
+    if (endian === 'little')
+      w = htonl(w);
+    res += zero8(w.toString(16));
+  }
+  return res;
+}
+utils.toHex32 = toHex32;
+
+function zero2(word) {
+  if (word.length === 1)
+    return '0' + word;
+  else
+    return word;
+}
+utils.zero2 = zero2;
+
+function zero8(word) {
+  if (word.length === 7)
+    return '0' + word;
+  else if (word.length === 6)
+    return '00' + word;
+  else if (word.length === 5)
+    return '000' + word;
+  else if (word.length === 4)
+    return '0000' + word;
+  else if (word.length === 3)
+    return '00000' + word;
+  else if (word.length === 2)
+    return '000000' + word;
+  else if (word.length === 1)
+    return '0000000' + word;
+  else
+    return word;
+}
+utils.zero8 = zero8;
+
+function join32(msg, start, end, endian) {
+  var len = end - start;
+  assert(len % 4 === 0);
+  var res = new Array(len / 4);
+  for (var i = 0, k = start; i < res.length; i++, k += 4) {
+    var w;
+    if (endian === 'big')
+      w = (msg[k] << 24) | (msg[k + 1] << 16) | (msg[k + 2] << 8) | msg[k + 3];
+    else
+      w = (msg[k + 3] << 24) | (msg[k + 2] << 16) | (msg[k + 1] << 8) | msg[k];
+    res[i] = w >>> 0;
+  }
+  return res;
+}
+utils.join32 = join32;
+
+function split32(msg, endian) {
+  var res = new Array(msg.length * 4);
+  for (var i = 0, k = 0; i < msg.length; i++, k += 4) {
+    var m = msg[i];
+    if (endian === 'big') {
+      res[k] = m >>> 24;
+      res[k + 1] = (m >>> 16) & 0xff;
+      res[k + 2] = (m >>> 8) & 0xff;
+      res[k + 3] = m & 0xff;
+    } else {
+      res[k + 3] = m >>> 24;
+      res[k + 2] = (m >>> 16) & 0xff;
+      res[k + 1] = (m >>> 8) & 0xff;
+      res[k] = m & 0xff;
+    }
+  }
+  return res;
+}
+utils.split32 = split32;
+
+function rotr32(w, b) {
+  return (w >>> b) | (w << (32 - b));
+}
+utils.rotr32 = rotr32;
+
+function rotl32(w, b) {
+  return (w << b) | (w >>> (32 - b));
+}
+utils.rotl32 = rotl32;
+
+function sum32(a, b) {
+  return (a + b) >>> 0;
+}
+utils.sum32 = sum32;
+
+function sum32_3(a, b, c) {
+  return (a + b + c) >>> 0;
+}
+utils.sum32_3 = sum32_3;
+
+function sum32_4(a, b, c, d) {
+  return (a + b + c + d) >>> 0;
+}
+utils.sum32_4 = sum32_4;
+
+function sum32_5(a, b, c, d, e) {
+  return (a + b + c + d + e) >>> 0;
+}
+utils.sum32_5 = sum32_5;
+
+function assert(cond, msg) {
+  if (!cond)
+    throw new Error(msg || 'Assertion failed');
+}
+utils.assert = assert;
+
+utils.inherits = inherits;
+
+function sum64(buf, pos, ah, al) {
+  var bh = buf[pos];
+  var bl = buf[pos + 1];
+
+  var lo = (al + bl) >>> 0;
+  var hi = (lo < al ? 1 : 0) + ah + bh;
+  buf[pos] = hi >>> 0;
+  buf[pos + 1] = lo;
+}
+exports.sum64 = sum64;
+
+function sum64_hi(ah, al, bh, bl) {
+  var lo = (al + bl) >>> 0;
+  var hi = (lo < al ? 1 : 0) + ah + bh;
+  return hi >>> 0;
+};
+exports.sum64_hi = sum64_hi;
+
+function sum64_lo(ah, al, bh, bl) {
+  var lo = al + bl;
+  return lo >>> 0;
+};
+exports.sum64_lo = sum64_lo;
+
+function sum64_4_hi(ah, al, bh, bl, ch, cl, dh, dl) {
+  var carry = 0;
+  var lo = al;
+  lo = (lo + bl) >>> 0;
+  carry += lo < al ? 1 : 0;
+  lo = (lo + cl) >>> 0;
+  carry += lo < cl ? 1 : 0;
+  lo = (lo + dl) >>> 0;
+  carry += lo < dl ? 1 : 0;
+
+  var hi = ah + bh + ch + dh + carry;
+  return hi >>> 0;
+};
+exports.sum64_4_hi = sum64_4_hi;
+
+function sum64_4_lo(ah, al, bh, bl, ch, cl, dh, dl) {
+  var lo = al + bl + cl + dl;
+  return lo >>> 0;
+};
+exports.sum64_4_lo = sum64_4_lo;
+
+function sum64_5_hi(ah, al, bh, bl, ch, cl, dh, dl, eh, el) {
+  var carry = 0;
+  var lo = al;
+  lo = (lo + bl) >>> 0;
+  carry += lo < al ? 1 : 0;
+  lo = (lo + cl) >>> 0;
+  carry += lo < cl ? 1 : 0;
+  lo = (lo + dl) >>> 0;
+  carry += lo < dl ? 1 : 0;
+  lo = (lo + el) >>> 0;
+  carry += lo < el ? 1 : 0;
+
+  var hi = ah + bh + ch + dh + eh + carry;
+  return hi >>> 0;
+};
+exports.sum64_5_hi = sum64_5_hi;
+
+function sum64_5_lo(ah, al, bh, bl, ch, cl, dh, dl, eh, el) {
+  var lo = al + bl + cl + dl + el;
+
+  return lo >>> 0;
+};
+exports.sum64_5_lo = sum64_5_lo;
+
+function rotr64_hi(ah, al, num) {
+  var r = (al << (32 - num)) | (ah >>> num);
+  return r >>> 0;
+};
+exports.rotr64_hi = rotr64_hi;
+
+function rotr64_lo(ah, al, num) {
+  var r = (ah << (32 - num)) | (al >>> num);
+  return r >>> 0;
+};
+exports.rotr64_lo = rotr64_lo;
+
+function shr64_hi(ah, al, num) {
+  return ah >>> num;
+};
+exports.shr64_hi = shr64_hi;
+
+function shr64_lo(ah, al, num) {
+  var r = (ah << (32 - num)) | (al >>> num);
+  return r >>> 0;
+};
+exports.shr64_lo = shr64_lo;
+
+},{"inherits":63}],63:[function(require,module,exports){
+arguments[4][9][0].apply(exports,arguments)
+},{"dup":9}],64:[function(require,module,exports){
+/**
+ * Returns a `Boolean` on whether or not the a `String` starts with '0x'
+ * @param {String} str the string input value
+ * @return {Boolean} a boolean if it is or is not hex prefixed
+ * @throws if the str input is not a string
+ */
+module.exports = function isHexPrefixed(str) {
+  if (typeof str !== 'string') {
+    throw new Error("[is-hex-prefixed] value must be type 'string', is currently type " + (typeof str) + ", while checking isHexPrefixed.");
+  }
+
+  return str.slice(0, 2) === '0x';
+}
+
+},{}],65:[function(require,module,exports){
+'use strict'
+module.exports = require('./lib/api')(require('./lib/keccak'))
+
+},{"./lib/api":66,"./lib/keccak":70}],66:[function(require,module,exports){
+'use strict'
+var createKeccak = require('./keccak')
+var createShake = require('./shake')
+
+module.exports = function (KeccakState) {
+  var Keccak = createKeccak(KeccakState)
+  var Shake = createShake(KeccakState)
+
+  return function (algorithm, options) {
+    var hash = typeof algorithm === 'string' ? algorithm.toLowerCase() : algorithm
+    switch (hash) {
+      case 'keccak224': return new Keccak(1152, 448, null, 224, options)
+      case 'keccak256': return new Keccak(1088, 512, null, 256, options)
+      case 'keccak384': return new Keccak(832, 768, null, 384, options)
+      case 'keccak512': return new Keccak(576, 1024, null, 512, options)
+
+      case 'sha3-224': return new Keccak(1152, 448, 0x06, 224, options)
+      case 'sha3-256': return new Keccak(1088, 512, 0x06, 256, options)
+      case 'sha3-384': return new Keccak(832, 768, 0x06, 384, options)
+      case 'sha3-512': return new Keccak(576, 1024, 0x06, 512, options)
+
+      case 'shake128': return new Shake(1344, 256, 0x1f, options)
+      case 'shake256': return new Shake(1088, 512, 0x1f, options)
+
+      default: throw new Error('Invald algorithm: ' + algorithm)
+    }
+  }
+}
+
+},{"./keccak":67,"./shake":68}],67:[function(require,module,exports){
+(function (Buffer){
+'use strict'
+var Transform = require('stream').Transform
+var inherits = require('inherits')
+
+module.exports = function (KeccakState) {
+  function Keccak (rate, capacity, delimitedSuffix, hashBitLength, options) {
+    Transform.call(this, options)
+
+    this._rate = rate
+    this._capacity = capacity
+    this._delimitedSuffix = delimitedSuffix
+    this._hashBitLength = hashBitLength
+    this._options = options
+
+    this._state = new KeccakState()
+    this._state.initialize(rate, capacity)
+    this._finalized = false
+  }
+
+  inherits(Keccak, Transform)
+
+  Keccak.prototype._transform = function (chunk, encoding, callback) {
+    var error = null
+    try {
+      this.update(chunk, encoding)
+    } catch (err) {
+      error = err
+    }
+
+    callback(error)
+  }
+
+  Keccak.prototype._flush = function (callback) {
+    var error = null
+    try {
+      this.push(this.digest())
+    } catch (err) {
+      error = err
+    }
+
+    callback(error)
+  }
+
+  Keccak.prototype.update = function (data, encoding) {
+    if (!Buffer.isBuffer(data) && typeof data !== 'string') throw new TypeError('Data must be a string or a buffer')
+    if (this._finalized) throw new Error('Digest already called')
+    if (!Buffer.isBuffer(data)) data = Buffer.from(data, encoding)
+
+    this._state.absorb(data)
+
+    return this
+  }
+
+  Keccak.prototype.digest = function (encoding) {
+    if (this._finalized) throw new Error('Digest already called')
+    this._finalized = true
+
+    if (this._delimitedSuffix) this._state.absorbLastFewBits(this._delimitedSuffix)
+    var digest = this._state.squeeze(this._hashBitLength / 8)
+    if (encoding !== undefined) digest = digest.toString(encoding)
+
+    this._resetState()
+
+    return digest
+  }
+
+  // remove result from memory
+  Keccak.prototype._resetState = function () {
+    this._state.initialize(this._rate, this._capacity)
+    return this
+  }
+
+  // because sometimes we need hash right now and little later
+  Keccak.prototype._clone = function () {
+    var clone = new Keccak(this._rate, this._capacity, this._delimitedSuffix, this._hashBitLength, this._options)
+    this._state.copy(clone._state)
+    clone._finalized = this._finalized
+
+    return clone
+  }
+
+  return Keccak
+}
+
+}).call(this,require("buffer").Buffer)
+},{"buffer":5,"inherits":63,"stream":25}],68:[function(require,module,exports){
+(function (Buffer){
+'use strict'
+var Transform = require('stream').Transform
+var inherits = require('inherits')
+
+module.exports = function (KeccakState) {
+  function Shake (rate, capacity, delimitedSuffix, options) {
+    Transform.call(this, options)
+
+    this._rate = rate
+    this._capacity = capacity
+    this._delimitedSuffix = delimitedSuffix
+    this._options = options
+
+    this._state = new KeccakState()
+    this._state.initialize(rate, capacity)
+    this._finalized = false
+  }
+
+  inherits(Shake, Transform)
+
+  Shake.prototype._transform = function (chunk, encoding, callback) {
+    var error = null
+    try {
+      this.update(chunk, encoding)
+    } catch (err) {
+      error = err
+    }
+
+    callback(error)
+  }
+
+  Shake.prototype._flush = function () {}
+
+  Shake.prototype._read = function (size) {
+    this.push(this.squeeze(size))
+  }
+
+  Shake.prototype.update = function (data, encoding) {
+    if (!Buffer.isBuffer(data) && typeof data !== 'string') throw new TypeError('Data must be a string or a buffer')
+    if (this._finalized) throw new Error('Squeeze already called')
+    if (!Buffer.isBuffer(data)) data = Buffer.from(data, encoding)
+
+    this._state.absorb(data)
+
+    return this
+  }
+
+  Shake.prototype.squeeze = function (dataByteLength, encoding) {
+    if (!this._finalized) {
+      this._finalized = true
+      this._state.absorbLastFewBits(this._delimitedSuffix)
+    }
+
+    var data = this._state.squeeze(dataByteLength)
+    if (encoding !== undefined) data = data.toString(encoding)
+
+    return data
+  }
+
+  Shake.prototype._resetState = function () {
+    this._state.initialize(this._rate, this._capacity)
+    return this
+  }
+
+  Shake.prototype._clone = function () {
+    var clone = new Shake(this._rate, this._capacity, this._delimitedSuffix, this._options)
+    this._state.copy(clone._state)
+    clone._finalized = this._finalized
+
+    return clone
+  }
+
+  return Shake
+}
+
+}).call(this,require("buffer").Buffer)
+},{"buffer":5,"inherits":63,"stream":25}],69:[function(require,module,exports){
+'use strict'
+var P1600_ROUND_CONSTANTS = [1, 0, 32898, 0, 32906, 2147483648, 2147516416, 2147483648, 32907, 0, 2147483649, 0, 2147516545, 2147483648, 32777, 2147483648, 138, 0, 136, 0, 2147516425, 0, 2147483658, 0, 2147516555, 0, 139, 2147483648, 32905, 2147483648, 32771, 2147483648, 32770, 2147483648, 128, 2147483648, 32778, 0, 2147483658, 2147483648, 2147516545, 2147483648, 32896, 2147483648, 2147483649, 0, 2147516424, 2147483648]
+
+exports.p1600 = function (s) {
+  for (var round = 0; round < 24; ++round) {
+    // theta
+    var lo0 = s[0] ^ s[10] ^ s[20] ^ s[30] ^ s[40]
+    var hi0 = s[1] ^ s[11] ^ s[21] ^ s[31] ^ s[41]
+    var lo1 = s[2] ^ s[12] ^ s[22] ^ s[32] ^ s[42]
+    var hi1 = s[3] ^ s[13] ^ s[23] ^ s[33] ^ s[43]
+    var lo2 = s[4] ^ s[14] ^ s[24] ^ s[34] ^ s[44]
+    var hi2 = s[5] ^ s[15] ^ s[25] ^ s[35] ^ s[45]
+    var lo3 = s[6] ^ s[16] ^ s[26] ^ s[36] ^ s[46]
+    var hi3 = s[7] ^ s[17] ^ s[27] ^ s[37] ^ s[47]
+    var lo4 = s[8] ^ s[18] ^ s[28] ^ s[38] ^ s[48]
+    var hi4 = s[9] ^ s[19] ^ s[29] ^ s[39] ^ s[49]
+
+    var lo = lo4 ^ (lo1 << 1 | hi1 >>> 31)
+    var hi = hi4 ^ (hi1 << 1 | lo1 >>> 31)
+    var t1slo0 = s[0] ^ lo
+    var t1shi0 = s[1] ^ hi
+    var t1slo5 = s[10] ^ lo
+    var t1shi5 = s[11] ^ hi
+    var t1slo10 = s[20] ^ lo
+    var t1shi10 = s[21] ^ hi
+    var t1slo15 = s[30] ^ lo
+    var t1shi15 = s[31] ^ hi
+    var t1slo20 = s[40] ^ lo
+    var t1shi20 = s[41] ^ hi
+    lo = lo0 ^ (lo2 << 1 | hi2 >>> 31)
+    hi = hi0 ^ (hi2 << 1 | lo2 >>> 31)
+    var t1slo1 = s[2] ^ lo
+    var t1shi1 = s[3] ^ hi
+    var t1slo6 = s[12] ^ lo
+    var t1shi6 = s[13] ^ hi
+    var t1slo11 = s[22] ^ lo
+    var t1shi11 = s[23] ^ hi
+    var t1slo16 = s[32] ^ lo
+    var t1shi16 = s[33] ^ hi
+    var t1slo21 = s[42] ^ lo
+    var t1shi21 = s[43] ^ hi
+    lo = lo1 ^ (lo3 << 1 | hi3 >>> 31)
+    hi = hi1 ^ (hi3 << 1 | lo3 >>> 31)
+    var t1slo2 = s[4] ^ lo
+    var t1shi2 = s[5] ^ hi
+    var t1slo7 = s[14] ^ lo
+    var t1shi7 = s[15] ^ hi
+    var t1slo12 = s[24] ^ lo
+    var t1shi12 = s[25] ^ hi
+    var t1slo17 = s[34] ^ lo
+    var t1shi17 = s[35] ^ hi
+    var t1slo22 = s[44] ^ lo
+    var t1shi22 = s[45] ^ hi
+    lo = lo2 ^ (lo4 << 1 | hi4 >>> 31)
+    hi = hi2 ^ (hi4 << 1 | lo4 >>> 31)
+    var t1slo3 = s[6] ^ lo
+    var t1shi3 = s[7] ^ hi
+    var t1slo8 = s[16] ^ lo
+    var t1shi8 = s[17] ^ hi
+    var t1slo13 = s[26] ^ lo
+    var t1shi13 = s[27] ^ hi
+    var t1slo18 = s[36] ^ lo
+    var t1shi18 = s[37] ^ hi
+    var t1slo23 = s[46] ^ lo
+    var t1shi23 = s[47] ^ hi
+    lo = lo3 ^ (lo0 << 1 | hi0 >>> 31)
+    hi = hi3 ^ (hi0 << 1 | lo0 >>> 31)
+    var t1slo4 = s[8] ^ lo
+    var t1shi4 = s[9] ^ hi
+    var t1slo9 = s[18] ^ lo
+    var t1shi9 = s[19] ^ hi
+    var t1slo14 = s[28] ^ lo
+    var t1shi14 = s[29] ^ hi
+    var t1slo19 = s[38] ^ lo
+    var t1shi19 = s[39] ^ hi
+    var t1slo24 = s[48] ^ lo
+    var t1shi24 = s[49] ^ hi
+
+    // rho & pi
+    var t2slo0 = t1slo0
+    var t2shi0 = t1shi0
+    var t2slo16 = (t1shi5 << 4 | t1slo5 >>> 28)
+    var t2shi16 = (t1slo5 << 4 | t1shi5 >>> 28)
+    var t2slo7 = (t1slo10 << 3 | t1shi10 >>> 29)
+    var t2shi7 = (t1shi10 << 3 | t1slo10 >>> 29)
+    var t2slo23 = (t1shi15 << 9 | t1slo15 >>> 23)
+    var t2shi23 = (t1slo15 << 9 | t1shi15 >>> 23)
+    var t2slo14 = (t1slo20 << 18 | t1shi20 >>> 14)
+    var t2shi14 = (t1shi20 << 18 | t1slo20 >>> 14)
+    var t2slo10 = (t1slo1 << 1 | t1shi1 >>> 31)
+    var t2shi10 = (t1shi1 << 1 | t1slo1 >>> 31)
+    var t2slo1 = (t1shi6 << 12 | t1slo6 >>> 20)
+    var t2shi1 = (t1slo6 << 12 | t1shi6 >>> 20)
+    var t2slo17 = (t1slo11 << 10 | t1shi11 >>> 22)
+    var t2shi17 = (t1shi11 << 10 | t1slo11 >>> 22)
+    var t2slo8 = (t1shi16 << 13 | t1slo16 >>> 19)
+    var t2shi8 = (t1slo16 << 13 | t1shi16 >>> 19)
+    var t2slo24 = (t1slo21 << 2 | t1shi21 >>> 30)
+    var t2shi24 = (t1shi21 << 2 | t1slo21 >>> 30)
+    var t2slo20 = (t1shi2 << 30 | t1slo2 >>> 2)
+    var t2shi20 = (t1slo2 << 30 | t1shi2 >>> 2)
+    var t2slo11 = (t1slo7 << 6 | t1shi7 >>> 26)
+    var t2shi11 = (t1shi7 << 6 | t1slo7 >>> 26)
+    var t2slo2 = (t1shi12 << 11 | t1slo12 >>> 21)
+    var t2shi2 = (t1slo12 << 11 | t1shi12 >>> 21)
+    var t2slo18 = (t1slo17 << 15 | t1shi17 >>> 17)
+    var t2shi18 = (t1shi17 << 15 | t1slo17 >>> 17)
+    var t2slo9 = (t1shi22 << 29 | t1slo22 >>> 3)
+    var t2shi9 = (t1slo22 << 29 | t1shi22 >>> 3)
+    var t2slo5 = (t1slo3 << 28 | t1shi3 >>> 4)
+    var t2shi5 = (t1shi3 << 28 | t1slo3 >>> 4)
+    var t2slo21 = (t1shi8 << 23 | t1slo8 >>> 9)
+    var t2shi21 = (t1slo8 << 23 | t1shi8 >>> 9)
+    var t2slo12 = (t1slo13 << 25 | t1shi13 >>> 7)
+    var t2shi12 = (t1shi13 << 25 | t1slo13 >>> 7)
+    var t2slo3 = (t1slo18 << 21 | t1shi18 >>> 11)
+    var t2shi3 = (t1shi18 << 21 | t1slo18 >>> 11)
+    var t2slo19 = (t1shi23 << 24 | t1slo23 >>> 8)
+    var t2shi19 = (t1slo23 << 24 | t1shi23 >>> 8)
+    var t2slo15 = (t1slo4 << 27 | t1shi4 >>> 5)
+    var t2shi15 = (t1shi4 << 27 | t1slo4 >>> 5)
+    var t2slo6 = (t1slo9 << 20 | t1shi9 >>> 12)
+    var t2shi6 = (t1shi9 << 20 | t1slo9 >>> 12)
+    var t2slo22 = (t1shi14 << 7 | t1slo14 >>> 25)
+    var t2shi22 = (t1slo14 << 7 | t1shi14 >>> 25)
+    var t2slo13 = (t1slo19 << 8 | t1shi19 >>> 24)
+    var t2shi13 = (t1shi19 << 8 | t1slo19 >>> 24)
+    var t2slo4 = (t1slo24 << 14 | t1shi24 >>> 18)
+    var t2shi4 = (t1shi24 << 14 | t1slo24 >>> 18)
+
+    // chi
+    s[0] = t2slo0 ^ (~t2slo1 & t2slo2)
+    s[1] = t2shi0 ^ (~t2shi1 & t2shi2)
+    s[10] = t2slo5 ^ (~t2slo6 & t2slo7)
+    s[11] = t2shi5 ^ (~t2shi6 & t2shi7)
+    s[20] = t2slo10 ^ (~t2slo11 & t2slo12)
+    s[21] = t2shi10 ^ (~t2shi11 & t2shi12)
+    s[30] = t2slo15 ^ (~t2slo16 & t2slo17)
+    s[31] = t2shi15 ^ (~t2shi16 & t2shi17)
+    s[40] = t2slo20 ^ (~t2slo21 & t2slo22)
+    s[41] = t2shi20 ^ (~t2shi21 & t2shi22)
+    s[2] = t2slo1 ^ (~t2slo2 & t2slo3)
+    s[3] = t2shi1 ^ (~t2shi2 & t2shi3)
+    s[12] = t2slo6 ^ (~t2slo7 & t2slo8)
+    s[13] = t2shi6 ^ (~t2shi7 & t2shi8)
+    s[22] = t2slo11 ^ (~t2slo12 & t2slo13)
+    s[23] = t2shi11 ^ (~t2shi12 & t2shi13)
+    s[32] = t2slo16 ^ (~t2slo17 & t2slo18)
+    s[33] = t2shi16 ^ (~t2shi17 & t2shi18)
+    s[42] = t2slo21 ^ (~t2slo22 & t2slo23)
+    s[43] = t2shi21 ^ (~t2shi22 & t2shi23)
+    s[4] = t2slo2 ^ (~t2slo3 & t2slo4)
+    s[5] = t2shi2 ^ (~t2shi3 & t2shi4)
+    s[14] = t2slo7 ^ (~t2slo8 & t2slo9)
+    s[15] = t2shi7 ^ (~t2shi8 & t2shi9)
+    s[24] = t2slo12 ^ (~t2slo13 & t2slo14)
+    s[25] = t2shi12 ^ (~t2shi13 & t2shi14)
+    s[34] = t2slo17 ^ (~t2slo18 & t2slo19)
+    s[35] = t2shi17 ^ (~t2shi18 & t2shi19)
+    s[44] = t2slo22 ^ (~t2slo23 & t2slo24)
+    s[45] = t2shi22 ^ (~t2shi23 & t2shi24)
+    s[6] = t2slo3 ^ (~t2slo4 & t2slo0)
+    s[7] = t2shi3 ^ (~t2shi4 & t2shi0)
+    s[16] = t2slo8 ^ (~t2slo9 & t2slo5)
+    s[17] = t2shi8 ^ (~t2shi9 & t2shi5)
+    s[26] = t2slo13 ^ (~t2slo14 & t2slo10)
+    s[27] = t2shi13 ^ (~t2shi14 & t2shi10)
+    s[36] = t2slo18 ^ (~t2slo19 & t2slo15)
+    s[37] = t2shi18 ^ (~t2shi19 & t2shi15)
+    s[46] = t2slo23 ^ (~t2slo24 & t2slo20)
+    s[47] = t2shi23 ^ (~t2shi24 & t2shi20)
+    s[8] = t2slo4 ^ (~t2slo0 & t2slo1)
+    s[9] = t2shi4 ^ (~t2shi0 & t2shi1)
+    s[18] = t2slo9 ^ (~t2slo5 & t2slo6)
+    s[19] = t2shi9 ^ (~t2shi5 & t2shi6)
+    s[28] = t2slo14 ^ (~t2slo10 & t2slo11)
+    s[29] = t2shi14 ^ (~t2shi10 & t2shi11)
+    s[38] = t2slo19 ^ (~t2slo15 & t2slo16)
+    s[39] = t2shi19 ^ (~t2shi15 & t2shi16)
+    s[48] = t2slo24 ^ (~t2slo20 & t2slo21)
+    s[49] = t2shi24 ^ (~t2shi20 & t2shi21)
+
+    // iota
+    s[0] ^= P1600_ROUND_CONSTANTS[round * 2]
+    s[1] ^= P1600_ROUND_CONSTANTS[round * 2 + 1]
+  }
+}
+
+},{}],70:[function(require,module,exports){
+(function (Buffer){
+'use strict'
+var keccakState = require('./keccak-state-unroll')
+
+function Keccak () {
+  // much faster than `new Array(50)`
+  this.state = [
+    0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0
+  ]
+
+  this.blockSize = null
+  this.count = 0
+  this.squeezing = false
+}
+
+Keccak.prototype.initialize = function (rate, capacity) {
+  for (var i = 0; i < 50; ++i) this.state[i] = 0
+  this.blockSize = rate / 8
+  this.count = 0
+  this.squeezing = false
+}
+
+Keccak.prototype.absorb = function (data) {
+  for (var i = 0; i < data.length; ++i) {
+    this.state[~~(this.count / 4)] ^= data[i] << (8 * (this.count % 4))
+    this.count += 1
+    if (this.count === this.blockSize) {
+      keccakState.p1600(this.state)
+      this.count = 0
+    }
+  }
+}
+
+Keccak.prototype.absorbLastFewBits = function (bits) {
+  this.state[~~(this.count / 4)] ^= bits << (8 * (this.count % 4))
+  if ((bits & 0x80) !== 0 && this.count === (this.blockSize - 1)) keccakState.p1600(this.state)
+  this.state[~~((this.blockSize - 1) / 4)] ^= 0x80 << (8 * ((this.blockSize - 1) % 4))
+  keccakState.p1600(this.state)
+  this.count = 0
+  this.squeezing = true
+}
+
+Keccak.prototype.squeeze = function (length) {
+  if (!this.squeezing) this.absorbLastFewBits(0x01)
+
+  var output = Buffer.allocUnsafe(length)
+  for (var i = 0; i < length; ++i) {
+    output[i] = (this.state[~~(this.count / 4)] >>> (8 * (this.count % 4))) & 0xff
+    this.count += 1
+    if (this.count === this.blockSize) {
+      keccakState.p1600(this.state)
+      this.count = 0
+    }
+  }
+
+  return output
+}
+
+Keccak.prototype.copy = function (dest) {
+  for (var i = 0; i < 50; ++i) dest.state[i] = this.state[i]
+  dest.blockSize = this.blockSize
+  dest.count = this.count
+  dest.squeezing = this.squeezing
+}
+
+module.exports = Keccak
+
+}).call(this,require("buffer").Buffer)
+},{"./keccak-state-unroll":69,"buffer":5}],71:[function(require,module,exports){
+(function (Buffer){
+/*
+CryptoJS v3.1.2
+code.google.com/p/crypto-js
+(c) 2009-2013 by Jeff Mott. All rights reserved.
+code.google.com/p/crypto-js/wiki/License
+*/
+/** @preserve
+(c) 2012 by Cédric Mesnil. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+
+    - Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+    - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+// constants table
+var zl = [
+  0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
+  7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8,
+  3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12,
+  1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2,
+  4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13
+]
+
+var zr = [
+  5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12,
+  6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2,
+  15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13,
+  8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14,
+  12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11
+]
+
+var sl = [
+  11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8,
+  7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12,
+  11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5,
+  11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12,
+  9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6
+]
+
+var sr = [
+  8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6,
+  9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11,
+  9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5,
+  15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8,
+  8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11
+]
+
+var hl = [0x00000000, 0x5A827999, 0x6ED9EBA1, 0x8F1BBCDC, 0xA953FD4E]
+var hr = [0x50A28BE6, 0x5C4DD124, 0x6D703EF3, 0x7A6D76E9, 0x00000000]
+
+function bytesToWords (bytes) {
+  var words = []
+  for (var i = 0, b = 0; i < bytes.length; i++, b += 8) {
+    words[b >>> 5] |= bytes[i] << (24 - b % 32)
+  }
+  return words
+}
+
+function wordsToBytes (words) {
+  var bytes = []
+  for (var b = 0; b < words.length * 32; b += 8) {
+    bytes.push((words[b >>> 5] >>> (24 - b % 32)) & 0xFF)
+  }
+  return bytes
+}
+
+function processBlock (H, M, offset) {
+  // swap endian
+  for (var i = 0; i < 16; i++) {
+    var offset_i = offset + i
+    var M_offset_i = M[offset_i]
+
+    // Swap
+    M[offset_i] = (
+      (((M_offset_i << 8) | (M_offset_i >>> 24)) & 0x00ff00ff) |
+      (((M_offset_i << 24) | (M_offset_i >>> 8)) & 0xff00ff00)
+    )
+  }
+
+  // Working variables
+  var al, bl, cl, dl, el
+  var ar, br, cr, dr, er
+
+  ar = al = H[0]
+  br = bl = H[1]
+  cr = cl = H[2]
+  dr = dl = H[3]
+  er = el = H[4]
+
+  // computation
+  var t
+  for (i = 0; i < 80; i += 1) {
+    t = (al + M[offset + zl[i]]) | 0
+    if (i < 16) {
+      t += f1(bl, cl, dl) + hl[0]
+    } else if (i < 32) {
+      t += f2(bl, cl, dl) + hl[1]
+    } else if (i < 48) {
+      t += f3(bl, cl, dl) + hl[2]
+    } else if (i < 64) {
+      t += f4(bl, cl, dl) + hl[3]
+    } else {// if (i<80) {
+      t += f5(bl, cl, dl) + hl[4]
+    }
+    t = t | 0
+    t = rotl(t, sl[i])
+    t = (t + el) | 0
+    al = el
+    el = dl
+    dl = rotl(cl, 10)
+    cl = bl
+    bl = t
+
+    t = (ar + M[offset + zr[i]]) | 0
+    if (i < 16) {
+      t += f5(br, cr, dr) + hr[0]
+    } else if (i < 32) {
+      t += f4(br, cr, dr) + hr[1]
+    } else if (i < 48) {
+      t += f3(br, cr, dr) + hr[2]
+    } else if (i < 64) {
+      t += f2(br, cr, dr) + hr[3]
+    } else {// if (i<80) {
+      t += f1(br, cr, dr) + hr[4]
+    }
+
+    t = t | 0
+    t = rotl(t, sr[i])
+    t = (t + er) | 0
+    ar = er
+    er = dr
+    dr = rotl(cr, 10)
+    cr = br
+    br = t
+  }
+
+  // intermediate hash value
+  t = (H[1] + cl + dr) | 0
+  H[1] = (H[2] + dl + er) | 0
+  H[2] = (H[3] + el + ar) | 0
+  H[3] = (H[4] + al + br) | 0
+  H[4] = (H[0] + bl + cr) | 0
+  H[0] = t
+}
+
+function f1 (x, y, z) {
+  return ((x) ^ (y) ^ (z))
+}
+
+function f2 (x, y, z) {
+  return (((x) & (y)) | ((~x) & (z)))
+}
+
+function f3 (x, y, z) {
+  return (((x) | (~(y))) ^ (z))
+}
+
+function f4 (x, y, z) {
+  return (((x) & (z)) | ((y) & (~(z))))
+}
+
+function f5 (x, y, z) {
+  return ((x) ^ ((y) | (~(z))))
+}
+
+function rotl (x, n) {
+  return (x << n) | (x >>> (32 - n))
+}
+
+function ripemd160 (message) {
+  var H = [0x67452301, 0xEFCDAB89, 0x98BADCFE, 0x10325476, 0xC3D2E1F0]
+
+  if (typeof message === 'string') {
+    message = new Buffer(message, 'utf8')
+  }
+
+  var m = bytesToWords(message)
+
+  var nBitsLeft = message.length * 8
+  var nBitsTotal = message.length * 8
+
+  // Add padding
+  m[nBitsLeft >>> 5] |= 0x80 << (24 - nBitsLeft % 32)
+  m[(((nBitsLeft + 64) >>> 9) << 4) + 14] = (
+    (((nBitsTotal << 8) | (nBitsTotal >>> 24)) & 0x00ff00ff) |
+    (((nBitsTotal << 24) | (nBitsTotal >>> 8)) & 0xff00ff00)
+  )
+
+  for (var i = 0; i < m.length; i += 16) {
+    processBlock(H, m, i)
+  }
+
+  // swap endian
+  for (i = 0; i < 5; i++) {
+    // shortcut
+    var H_i = H[i]
+
+    // Swap
+    H[i] = (((H_i << 8) | (H_i >>> 24)) & 0x00ff00ff) |
+      (((H_i << 24) | (H_i >>> 8)) & 0xff00ff00)
+  }
+
+  var digestbytes = wordsToBytes(H)
+  return new Buffer(digestbytes)
+}
+
+module.exports = ripemd160
+
+}).call(this,require("buffer").Buffer)
+},{"buffer":5}],72:[function(require,module,exports){
+(function (Buffer){
+const assert = require('assert')
+/**
+ * RLP Encoding based on: https://github.com/ethereum/wiki/wiki/%5BEnglish%5D-RLP
+ * This function takes in a data, convert it to buffer if not, and a length for recursion
+ *
+ * @param {Buffer,String,Integer,Array} data - will be converted to buffer
+ * @returns {Buffer} - returns buffer of encoded data
+ **/
+exports.encode = function (input) {
+  if (input instanceof Array) {
+    var output = []
+    for (var i = 0; i < input.length; i++) {
+      output.push(exports.encode(input[i]))
+    }
+    var buf = Buffer.concat(output)
+    return Buffer.concat([encodeLength(buf.length, 192), buf])
+  } else {
+    input = toBuffer(input)
+    if (input.length === 1 && input[0] < 128) {
+      return input
+    } else {
+      return Buffer.concat([encodeLength(input.length, 128), input])
+    }
+  }
+}
+
+function safeParseInt (v, base) {
+  if (v.slice(0, 2) === '00') {
+    throw (new Error('invalid RLP: extra zeros'))
+  }
+
+  return parseInt(v, base)
+}
+
+function encodeLength (len, offset) {
+  if (len < 56) {
+    return new Buffer([len + offset])
+  } else {
+    var hexLength = intToHex(len)
+    var lLength = hexLength.length / 2
+    var firstByte = intToHex(offset + 55 + lLength)
+    return new Buffer(firstByte + hexLength, 'hex')
+  }
+}
+
+/**
+ * RLP Decoding based on: {@link https://github.com/ethereum/wiki/wiki/%5BEnglish%5D-RLP|RLP}
+ * @param {Buffer,String,Integer,Array} data - will be converted to buffer
+ * @returns {Array} - returns decode Array of Buffers containg the original message
+ **/
+exports.decode = function (input, stream) {
+  if (!input || input.length === 0) {
+    return new Buffer([])
+  }
+
+  input = toBuffer(input)
+  var decoded = _decode(input)
+
+  if (stream) {
+    return decoded
+  }
+
+  assert.equal(decoded.remainder.length, 0, 'invalid remainder')
+  return decoded.data
+}
+
+exports.getLength = function (input) {
+  if (!input || input.length === 0) {
+    return new Buffer([])
+  }
+
+  input = toBuffer(input)
+  var firstByte = input[0]
+  if (firstByte <= 0x7f) {
+    return input.length
+  } else if (firstByte <= 0xb7) {
+    return firstByte - 0x7f
+  } else if (firstByte <= 0xbf) {
+    return firstByte - 0xb6
+  } else if (firstByte <= 0xf7) {
+    // a list between  0-55 bytes long
+    return firstByte - 0xbf
+  } else {
+    // a list  over 55 bytes long
+    var llength = firstByte - 0xf6
+    var length = safeParseInt(input.slice(1, llength).toString('hex'), 16)
+    return llength + length
+  }
+}
+
+function _decode (input) {
+  var length, llength, data, innerRemainder, d
+  var decoded = []
+  var firstByte = input[0]
+
+  if (firstByte <= 0x7f) {
+    // a single byte whose value is in the [0x00, 0x7f] range, that byte is its own RLP encoding.
+    return {
+      data: input.slice(0, 1),
+      remainder: input.slice(1)
+    }
+  } else if (firstByte <= 0xb7) {
+    // string is 0-55 bytes long. A single byte with value 0x80 plus the length of the string followed by the string
+    // The range of the first byte is [0x80, 0xb7]
+    length = firstByte - 0x7f
+
+    // set 0x80 null to 0
+    if (firstByte === 0x80) {
+      data = new Buffer([])
+    } else {
+      data = input.slice(1, length)
+    }
+
+    if (length === 2 && data[0] < 0x80) {
+      throw new Error('invalid rlp encoding: byte must be less 0x80')
+    }
+
+    return {
+      data: data,
+      remainder: input.slice(length)
+    }
+  } else if (firstByte <= 0xbf) {
+    llength = firstByte - 0xb6
+    length = safeParseInt(input.slice(1, llength).toString('hex'), 16)
+    data = input.slice(llength, length + llength)
+    if (data.length < length) {
+      throw (new Error('invalid RLP'))
+    }
+
+    return {
+      data: data,
+      remainder: input.slice(length + llength)
+    }
+  } else if (firstByte <= 0xf7) {
+    // a list between  0-55 bytes long
+    length = firstByte - 0xbf
+    innerRemainder = input.slice(1, length)
+    while (innerRemainder.length) {
+      d = _decode(innerRemainder)
+      decoded.push(d.data)
+      innerRemainder = d.remainder
+    }
+
+    return {
+      data: decoded,
+      remainder: input.slice(length)
+    }
+  } else {
+    // a list  over 55 bytes long
+    llength = firstByte - 0xf6
+    length = safeParseInt(input.slice(1, llength).toString('hex'), 16)
+    var totalLength = llength + length
+    if (totalLength > input.length) {
+      throw new Error('invalid rlp: total length is larger than the data')
+    }
+
+    innerRemainder = input.slice(llength, totalLength)
+    if (innerRemainder.length === 0) {
+      throw new Error('invalid rlp, List has a invalid length')
+    }
+
+    while (innerRemainder.length) {
+      d = _decode(innerRemainder)
+      decoded.push(d.data)
+      innerRemainder = d.remainder
+    }
+    return {
+      data: decoded,
+      remainder: input.slice(totalLength)
+    }
+  }
+}
+
+function isHexPrefixed (str) {
+  return str.slice(0, 2) === '0x'
+}
+
+// Removes 0x from a given String
+function stripHexPrefix (str) {
+  if (typeof str !== 'string') {
+    return str
+  }
+  return isHexPrefixed(str) ? str.slice(2) : str
+}
+
+function intToHex (i) {
+  var hex = i.toString(16)
+  if (hex.length % 2) {
+    hex = '0' + hex
+  }
+
+  return hex
+}
+
+function padToEven (a) {
+  if (a.length % 2) a = '0' + a
+  return a
+}
+
+function intToBuffer (i) {
+  var hex = intToHex(i)
+  return new Buffer(hex, 'hex')
+}
+
+function toBuffer (v) {
+  if (!Buffer.isBuffer(v)) {
+    if (typeof v === 'string') {
+      if (isHexPrefixed(v)) {
+        v = new Buffer(padToEven(stripHexPrefix(v)), 'hex')
+      } else {
+        v = new Buffer(v)
+      }
+    } else if (typeof v === 'number') {
+      if (!v) {
+        v = new Buffer([])
+      } else {
+        v = intToBuffer(v)
+      }
+    } else if (v === null || v === undefined) {
+      v = new Buffer([])
+    } else if (v.toArray) {
+      // converts a BN to a Buffer
+      v = new Buffer(v.toArray())
+    } else {
+      throw new Error('invalid type')
+    }
+  }
+  return v
+}
+
+}).call(this,require("buffer").Buffer)
+},{"assert":1,"buffer":5}],73:[function(require,module,exports){
+'use strict'
+module.exports = require('./lib')(require('./lib/elliptic'))
+
+},{"./lib":77,"./lib/elliptic":76}],74:[function(require,module,exports){
+(function (Buffer){
+'use strict'
+var toString = Object.prototype.toString
+
+// TypeError
+exports.isArray = function (value, message) {
+  if (!Array.isArray(value)) throw TypeError(message)
+}
+
+exports.isBoolean = function (value, message) {
+  if (toString.call(value) !== '[object Boolean]') throw TypeError(message)
+}
+
+exports.isBuffer = function (value, message) {
+  if (!Buffer.isBuffer(value)) throw TypeError(message)
+}
+
+exports.isFunction = function (value, message) {
+  if (toString.call(value) !== '[object Function]') throw TypeError(message)
+}
+
+exports.isNumber = function (value, message) {
+  if (toString.call(value) !== '[object Number]') throw TypeError(message)
+}
+
+exports.isObject = function (value, message) {
+  if (toString.call(value) !== '[object Object]') throw TypeError(message)
+}
+
+// RangeError
+exports.isBufferLength = function (buffer, length, message) {
+  if (buffer.length !== length) throw RangeError(message)
+}
+
+exports.isBufferLength2 = function (buffer, length1, length2, message) {
+  if (buffer.length !== length1 && buffer.length !== length2) throw RangeError(message)
+}
+
+exports.isLengthGTZero = function (value, message) {
+  if (value.length === 0) throw RangeError(message)
+}
+
+exports.isNumberInInterval = function (number, x, y, message) {
+  if (number <= x || number >= y) throw RangeError(message)
+}
+
+}).call(this,{"isBuffer":require("../../../../../.nvm/versions/node/v7.5.0/lib/node_modules/browserify/node_modules/is-buffer/index.js")})
+},{"../../../../../.nvm/versions/node/v7.5.0/lib/node_modules/browserify/node_modules/is-buffer/index.js":10}],75:[function(require,module,exports){
+(function (Buffer){
+'use strict'
+var bip66 = require('bip66')
+
+var EC_PRIVKEY_EXPORT_DER_COMPRESSED = new Buffer([
+  // begin
+  0x30, 0x81, 0xd3, 0x02, 0x01, 0x01, 0x04, 0x20,
+  // private key
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  // middle
+  0xa0, 0x81, 0x85, 0x30, 0x81, 0x82, 0x02, 0x01, 0x01, 0x30, 0x2c, 0x06, 0x07, 0x2a, 0x86, 0x48,
+  0xcE, 0x3d, 0x01, 0x01, 0x02, 0x21, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+  0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+  0xff, 0xff, 0xfE, 0xff, 0xff, 0xfc, 0x2f, 0x30, 0x06, 0x04, 0x01, 0x00, 0x04, 0x01, 0x07, 0x04,
+  0x21, 0x02, 0x79, 0xbE, 0x66, 0x7E, 0xf9, 0xdc, 0xbb, 0xac, 0x55, 0xa0, 0x62, 0x95, 0xcE, 0x87,
+  0x0b, 0x07, 0x02, 0x9b, 0xfc, 0xdb, 0x2d, 0xcE, 0x28, 0xd9, 0x59, 0xf2, 0x81, 0x5b, 0x16, 0xf8,
+  0x17, 0x98, 0x02, 0x21, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+  0xff, 0xff, 0xff, 0xff, 0xfE, 0xba, 0xaE, 0xdc, 0xE6, 0xaf, 0x48, 0xa0, 0x3b, 0xbf, 0xd2, 0x5E,
+  0x8c, 0xd0, 0x36, 0x41, 0x41, 0x02, 0x01, 0x01, 0xa1, 0x24, 0x03, 0x22, 0x00,
+  // public key
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00
+])
+
+var EC_PRIVKEY_EXPORT_DER_UNCOMPRESSED = new Buffer([
+  // begin
+  0x30, 0x82, 0x01, 0x13, 0x02, 0x01, 0x01, 0x04, 0x20,
+  // private key
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  // middle
+  0xa0, 0x81, 0xa5, 0x30, 0x81, 0xa2, 0x02, 0x01, 0x01, 0x30, 0x2c, 0x06, 0x07, 0x2a, 0x86, 0x48,
+  0xcE, 0x3d, 0x01, 0x01, 0x02, 0x21, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+  0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+  0xff, 0xff, 0xfE, 0xff, 0xff, 0xfc, 0x2f, 0x30, 0x06, 0x04, 0x01, 0x00, 0x04, 0x01, 0x07, 0x04,
+  0x41, 0x04, 0x79, 0xbE, 0x66, 0x7E, 0xf9, 0xdc, 0xbb, 0xac, 0x55, 0xa0, 0x62, 0x95, 0xcE, 0x87,
+  0x0b, 0x07, 0x02, 0x9b, 0xfc, 0xdb, 0x2d, 0xcE, 0x28, 0xd9, 0x59, 0xf2, 0x81, 0x5b, 0x16, 0xf8,
+  0x17, 0x98, 0x48, 0x3a, 0xda, 0x77, 0x26, 0xa3, 0xc4, 0x65, 0x5d, 0xa4, 0xfb, 0xfc, 0x0E, 0x11,
+  0x08, 0xa8, 0xfd, 0x17, 0xb4, 0x48, 0xa6, 0x85, 0x54, 0x19, 0x9c, 0x47, 0xd0, 0x8f, 0xfb, 0x10,
+  0xd4, 0xb8, 0x02, 0x21, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+  0xff, 0xff, 0xff, 0xff, 0xfE, 0xba, 0xaE, 0xdc, 0xE6, 0xaf, 0x48, 0xa0, 0x3b, 0xbf, 0xd2, 0x5E,
+  0x8c, 0xd0, 0x36, 0x41, 0x41, 0x02, 0x01, 0x01, 0xa1, 0x44, 0x03, 0x42, 0x00,
+  // public key
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00
+])
+
+var ZERO_BUFFER_32 = new Buffer([
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+])
+
+exports.privateKeyExport = function (privateKey, publicKey, compressed) {
+  var result = new Buffer(compressed ? EC_PRIVKEY_EXPORT_DER_COMPRESSED : EC_PRIVKEY_EXPORT_DER_UNCOMPRESSED)
+  privateKey.copy(result, compressed ? 8 : 9)
+  publicKey.copy(result, compressed ? 181 : 214)
+  return result
+}
+
+exports.privateKeyImport = function (privateKey) {
+  var length = privateKey.length
+
+  // sequence header
+  var index = 0
+  if (length < index + 1 || privateKey[index] !== 0x30) return
+  index += 1
+
+  // sequence length constructor
+  if (length < index + 1 || !(privateKey[index] & 0x80)) return
+
+  var lenb = privateKey[index] & 0x7f
+  index += 1
+  if (lenb < 1 || lenb > 2) return
+  if (length < index + lenb) return
+
+  // sequence length
+  var len = privateKey[index + lenb - 1] | (lenb > 1 ? privateKey[index + lenb - 2] << 8 : 0)
+  index += lenb
+  if (length < index + len) return
+
+  // sequence element 0: version number (=1)
+  if (length < index + 3 ||
+      privateKey[index] !== 0x02 ||
+      privateKey[index + 1] !== 0x01 ||
+      privateKey[index + 2] !== 0x01) {
+    return
+  }
+  index += 3
+
+  // sequence element 1: octet string, up to 32 bytes
+  if (length < index + 2 ||
+      privateKey[index] !== 0x04 ||
+      privateKey[index + 1] > 0x20 ||
+      length < index + 2 + privateKey[index + 1]) {
+    return
+  }
+
+  return privateKey.slice(index + 2, index + 2 + privateKey[index + 1])
+}
+
+exports.signatureExport = function (sigObj) {
+  var r = Buffer.concat([new Buffer([0]), sigObj.r])
+  for (var lenR = 33, posR = 0; lenR > 1 && r[posR] === 0x00 && !(r[posR + 1] & 0x80); --lenR, ++posR);
+
+  var s = Buffer.concat([new Buffer([0]), sigObj.s])
+  for (var lenS = 33, posS = 0; lenS > 1 && s[posS] === 0x00 && !(s[posS + 1] & 0x80); --lenS, ++posS);
+
+  return bip66.encode(r.slice(posR), s.slice(posS))
+}
+
+exports.signatureImport = function (sig) {
+  var r = new Buffer(ZERO_BUFFER_32)
+  var s = new Buffer(ZERO_BUFFER_32)
+
+  try {
+    var sigObj = bip66.decode(sig)
+    if (sigObj.r.length === 33 && sigObj.r[0] === 0x00) sigObj.r = sigObj.r.slice(1)
+    if (sigObj.r.length > 32) throw new Error('R length is too long')
+    if (sigObj.s.length === 33 && sigObj.s[0] === 0x00) sigObj.s = sigObj.s.slice(1)
+    if (sigObj.s.length > 32) throw new Error('S length is too long')
+  } catch (err) {
+    return
+  }
+
+  sigObj.r.copy(r, 32 - sigObj.r.length)
+  sigObj.s.copy(s, 32 - sigObj.s.length)
+
+  return { r: r, s: s }
+}
+
+exports.signatureImportLax = function (sig) {
+  var r = new Buffer(ZERO_BUFFER_32)
+  var s = new Buffer(ZERO_BUFFER_32)
+
+  var length = sig.length
+  var index = 0
+
+  // sequence tag byte
+  if (sig[index++] !== 0x30) return
+
+  // sequence length byte
+  var lenbyte = sig[index++]
+  if (lenbyte & 0x80) {
+    index += lenbyte - 0x80
+    if (index > length) return
+  }
+
+  // sequence tag byte for r
+  if (sig[index++] !== 0x02) return
+
+  // length for r
+  var rlen = sig[index++]
+  if (rlen & 0x80) {
+    lenbyte = rlen - 0x80
+    if (index + lenbyte > length) return
+    for (; lenbyte > 0 && sig[index] === 0x00; index += 1, lenbyte -= 1);
+    for (rlen = 0; lenbyte > 0; index += 1, lenbyte -= 1) rlen = (rlen << 8) + sig[index]
+  }
+  if (rlen > length - index) return
+  var rindex = index
+  index += rlen
+
+  // sequence tag byte for s
+  if (sig[index++] !== 0x02) return
+
+  // length for s
+  var slen = sig[index++]
+  if (slen & 0x80) {
+    lenbyte = slen - 0x80
+    if (index + lenbyte > length) return
+    for (; lenbyte > 0 && sig[index] === 0x00; index += 1, lenbyte -= 1);
+    for (slen = 0; lenbyte > 0; index += 1, lenbyte -= 1) slen = (slen << 8) + sig[index]
+  }
+  if (slen > length - index) return
+  var sindex = index
+  index += slen
+
+  // ignore leading zeros in r
+  for (; rlen > 0 && sig[rindex] === 0x00; rlen -= 1, rindex += 1);
+  // copy r value
+  if (rlen > 32) return
+  var rvalue = sig.slice(rindex, rindex + rlen)
+  rvalue.copy(r, 32 - rvalue.length)
+
+  // ignore leading zeros in s
+  for (; slen > 0 && sig[sindex] === 0x00; slen -= 1, sindex += 1);
+  // copy s value
+  if (slen > 32) return
+  var svalue = sig.slice(sindex, sindex + slen)
+  svalue.copy(s, 32 - svalue.length)
+
+  return { r: r, s: s }
+}
+
+}).call(this,require("buffer").Buffer)
+},{"bip66":32,"buffer":5}],76:[function(require,module,exports){
+(function (Buffer){
+'use strict'
+var createHash = require('create-hash')
+var BN = require('bn.js')
+var EC = require('elliptic').ec
+
+var messages = require('../messages.json')
+
+var ec = new EC('secp256k1')
+var ecparams = ec.curve
+
+function loadCompressedPublicKey (first, xBuffer) {
+  var x = new BN(xBuffer)
+
+  // overflow
+  if (x.cmp(ecparams.p) >= 0) return null
+  x = x.toRed(ecparams.red)
+
+  // compute corresponding Y
+  var y = x.redSqr().redIMul(x).redIAdd(ecparams.b).redSqrt()
+  if ((first === 0x03) !== y.isOdd()) y = y.redNeg()
+
+  return ec.keyPair({ pub: { x: x, y: y } })
+}
+
+function loadUncompressedPublicKey (first, xBuffer, yBuffer) {
+  var x = new BN(xBuffer)
+  var y = new BN(yBuffer)
+
+  // overflow
+  if (x.cmp(ecparams.p) >= 0 || y.cmp(ecparams.p) >= 0) return null
+
+  x = x.toRed(ecparams.red)
+  y = y.toRed(ecparams.red)
+
+  // is odd flag
+  if ((first === 0x06 || first === 0x07) && y.isOdd() !== (first === 0x07)) return null
+
+  // x*x*x + b = y*y
+  var x3 = x.redSqr().redIMul(x)
+  if (!y.redSqr().redISub(x3.redIAdd(ecparams.b)).isZero()) return null
+
+  return ec.keyPair({ pub: { x: x, y: y } })
+}
+
+function loadPublicKey (publicKey) {
+  var first = publicKey[0]
+  switch (first) {
+    case 0x02:
+    case 0x03:
+      if (publicKey.length !== 33) return null
+      return loadCompressedPublicKey(first, publicKey.slice(1, 33))
+    case 0x04:
+    case 0x06:
+    case 0x07:
+      if (publicKey.length !== 65) return null
+      return loadUncompressedPublicKey(first, publicKey.slice(1, 33), publicKey.slice(33, 65))
+    default:
+      return null
+  }
+}
+
+exports.privateKeyVerify = function (privateKey) {
+  var bn = new BN(privateKey)
+  return bn.cmp(ecparams.n) < 0 && !bn.isZero()
+}
+
+exports.privateKeyExport = function (privateKey, compressed) {
+  var d = new BN(privateKey)
+  if (d.cmp(ecparams.n) >= 0 || d.isZero()) throw new Error(messages.EC_PRIVATE_KEY_EXPORT_DER_FAIL)
+
+  return new Buffer(ec.keyFromPrivate(privateKey).getPublic(compressed, true))
+}
+
+exports.privateKeyTweakAdd = function (privateKey, tweak) {
+  var bn = new BN(tweak)
+  if (bn.cmp(ecparams.n) >= 0) throw new Error(messages.EC_PRIVATE_KEY_TWEAK_ADD_FAIL)
+
+  bn.iadd(new BN(privateKey))
+  if (bn.cmp(ecparams.n) >= 0) bn.isub(ecparams.n)
+  if (bn.isZero()) throw new Error(messages.EC_PRIVATE_KEY_TWEAK_ADD_FAIL)
+
+  return bn.toArrayLike(Buffer, 'be', 32)
+}
+
+exports.privateKeyTweakMul = function (privateKey, tweak) {
+  var bn = new BN(tweak)
+  if (bn.cmp(ecparams.n) >= 0 || bn.isZero()) throw new Error(messages.EC_PRIVATE_KEY_TWEAK_MUL_FAIL)
+
+  bn.imul(new BN(privateKey))
+  if (bn.cmp(ecparams.n)) bn = bn.umod(ecparams.n)
+
+  return bn.toArrayLike(Buffer, 'be', 32)
+}
+
+exports.publicKeyCreate = function (privateKey, compressed) {
+  var d = new BN(privateKey)
+  if (d.cmp(ecparams.n) >= 0 || d.isZero()) throw new Error(messages.EC_PUBLIC_KEY_CREATE_FAIL)
+
+  return new Buffer(ec.keyFromPrivate(privateKey).getPublic(compressed, true))
+}
+
+exports.publicKeyConvert = function (publicKey, compressed) {
+  var pair = loadPublicKey(publicKey)
+  if (pair === null) throw new Error(messages.EC_PUBLIC_KEY_PARSE_FAIL)
+
+  return new Buffer(pair.getPublic(compressed, true))
+}
+
+exports.publicKeyVerify = function (publicKey) {
+  return loadPublicKey(publicKey) !== null
+}
+
+exports.publicKeyTweakAdd = function (publicKey, tweak, compressed) {
+  var pair = loadPublicKey(publicKey)
+  if (pair === null) throw new Error(messages.EC_PUBLIC_KEY_PARSE_FAIL)
+
+  tweak = new BN(tweak)
+  if (tweak.cmp(ecparams.n) >= 0) throw new Error(messages.EC_PUBLIC_KEY_TWEAK_ADD_FAIL)
+
+  return new Buffer(ecparams.g.mul(tweak).add(pair.pub).encode(true, compressed))
+}
+
+exports.publicKeyTweakMul = function (publicKey, tweak, compressed) {
+  var pair = loadPublicKey(publicKey)
+  if (pair === null) throw new Error(messages.EC_PUBLIC_KEY_PARSE_FAIL)
+
+  tweak = new BN(tweak)
+  if (tweak.cmp(ecparams.n) >= 0 || tweak.isZero()) throw new Error(messages.EC_PUBLIC_KEY_TWEAK_MUL_FAIL)
+
+  return new Buffer(pair.pub.mul(tweak).encode(true, compressed))
+}
+
+exports.publicKeyCombine = function (publicKeys, compressed) {
+  var pairs = new Array(publicKeys.length)
+  for (var i = 0; i < publicKeys.length; ++i) {
+    pairs[i] = loadPublicKey(publicKeys[i])
+    if (pairs[i] === null) throw new Error(messages.EC_PUBLIC_KEY_PARSE_FAIL)
+  }
+
+  var point = pairs[0].pub
+  for (var j = 1; j < pairs.length; ++j) point = point.add(pairs[j].pub)
+  if (point.isInfinity()) throw new Error(messages.EC_PUBLIC_KEY_COMBINE_FAIL)
+
+  return new Buffer(point.encode(true, compressed))
+}
+
+exports.signatureNormalize = function (signature) {
+  var r = new BN(signature.slice(0, 32))
+  var s = new BN(signature.slice(32, 64))
+  if (r.cmp(ecparams.n) >= 0 || s.cmp(ecparams.n) >= 0) throw new Error(messages.ECDSA_SIGNATURE_PARSE_FAIL)
+
+  var result = new Buffer(signature)
+  if (s.cmp(ec.nh) === 1) ecparams.n.sub(s).toArrayLike(Buffer, 'be', 32).copy(result, 32)
+
+  return result
+}
+
+exports.signatureExport = function (signature) {
+  var r = signature.slice(0, 32)
+  var s = signature.slice(32, 64)
+  if (new BN(r).cmp(ecparams.n) >= 0 || new BN(s).cmp(ecparams.n) >= 0) throw new Error(messages.ECDSA_SIGNATURE_PARSE_FAIL)
+
+  return { r: r, s: s }
+}
+
+exports.signatureImport = function (sigObj) {
+  var r = new BN(sigObj.r)
+  if (r.cmp(ecparams.n) >= 0) r = new BN(0)
+
+  var s = new BN(sigObj.s)
+  if (s.cmp(ecparams.n) >= 0) s = new BN(0)
+
+  return Buffer.concat([
+    r.toArrayLike(Buffer, 'be', 32),
+    s.toArrayLike(Buffer, 'be', 32)
+  ])
+}
+
+exports.sign = function (message, privateKey, noncefn, data) {
+  if (typeof noncefn === 'function') {
+    var getNonce = noncefn
+    noncefn = function (counter) {
+      var nonce = getNonce(message, privateKey, null, data, counter)
+      if (!Buffer.isBuffer(nonce) || nonce.length !== 32) throw new Error(messages.ECDSA_SIGN_FAIL)
+
+      return new BN(nonce)
+    }
+  }
+
+  var d = new BN(privateKey)
+  if (d.cmp(ecparams.n) >= 0 || d.isZero()) throw new Error(messages.ECDSA_SIGN_FAIL)
+
+  var result = ec.sign(message, privateKey, { canonical: true, k: noncefn, pers: data })
+  return {
+    signature: Buffer.concat([
+      result.r.toArrayLike(Buffer, 'be', 32),
+      result.s.toArrayLike(Buffer, 'be', 32)
+    ]),
+    recovery: result.recoveryParam
+  }
+}
+
+exports.verify = function (message, signature, publicKey) {
+  var sigObj = {r: signature.slice(0, 32), s: signature.slice(32, 64)}
+
+  var sigr = new BN(sigObj.r)
+  var sigs = new BN(sigObj.s)
+  if (sigr.cmp(ecparams.n) >= 0 || sigs.cmp(ecparams.n) >= 0) throw new Error(messages.ECDSA_SIGNATURE_PARSE_FAIL)
+  if (sigs.cmp(ec.nh) === 1 || sigr.isZero() || sigs.isZero()) return false
+
+  var pair = loadPublicKey(publicKey)
+  if (pair === null) throw new Error(messages.EC_PUBLIC_KEY_PARSE_FAIL)
+
+  return ec.verify(message, sigObj, {x: pair.pub.x, y: pair.pub.y})
+}
+
+exports.recover = function (message, signature, recovery, compressed) {
+  var sigObj = {r: signature.slice(0, 32), s: signature.slice(32, 64)}
+
+  var sigr = new BN(sigObj.r)
+  var sigs = new BN(sigObj.s)
+  if (sigr.cmp(ecparams.n) >= 0 || sigs.cmp(ecparams.n) >= 0) throw new Error(messages.ECDSA_SIGNATURE_PARSE_FAIL)
+
+  try {
+    if (sigr.isZero() || sigs.isZero()) throw new Error()
+
+    var point = ec.recoverPubKey(message, sigObj, recovery)
+    return new Buffer(point.encode(true, compressed))
+  } catch (err) {
+    throw new Error(messages.ECDSA_RECOVER_FAIL)
+  }
+}
+
+exports.ecdh = function (publicKey, privateKey) {
+  var shared = exports.ecdhUnsafe(publicKey, privateKey, true)
+  return createHash('sha256').update(shared).digest()
+}
+
+exports.ecdhUnsafe = function (publicKey, privateKey, compressed) {
+  var pair = loadPublicKey(publicKey)
+  if (pair === null) throw new Error(messages.EC_PUBLIC_KEY_PARSE_FAIL)
+
+  var scalar = new BN(privateKey)
+  if (scalar.cmp(ecparams.n) >= 0 || scalar.isZero()) throw new Error(messages.ECDH_FAIL)
+
+  return new Buffer(pair.pub.mul(scalar).encode(true, compressed))
+}
+
+}).call(this,require("buffer").Buffer)
+},{"../messages.json":78,"bn.js":33,"buffer":5,"create-hash":36,"elliptic":39}],77:[function(require,module,exports){
+'use strict'
+var assert = require('./assert')
+var der = require('./der')
+var messages = require('./messages.json')
+
+function initCompressedValue (value, defaultValue) {
+  if (value === undefined) return defaultValue
+
+  assert.isBoolean(value, messages.COMPRESSED_TYPE_INVALID)
+  return value
+}
+
+module.exports = function (secp256k1) {
+  return {
+    privateKeyVerify: function (privateKey) {
+      assert.isBuffer(privateKey, messages.EC_PRIVATE_KEY_TYPE_INVALID)
+      return privateKey.length === 32 && secp256k1.privateKeyVerify(privateKey)
+    },
+
+    privateKeyExport: function (privateKey, compressed) {
+      assert.isBuffer(privateKey, messages.EC_PRIVATE_KEY_TYPE_INVALID)
+      assert.isBufferLength(privateKey, 32, messages.EC_PRIVATE_KEY_LENGTH_INVALID)
+
+      compressed = initCompressedValue(compressed, true)
+      var publicKey = secp256k1.privateKeyExport(privateKey, compressed)
+
+      return der.privateKeyExport(privateKey, publicKey, compressed)
+    },
+
+    privateKeyImport: function (privateKey) {
+      assert.isBuffer(privateKey, messages.EC_PRIVATE_KEY_TYPE_INVALID)
+
+      privateKey = der.privateKeyImport(privateKey)
+      if (privateKey && privateKey.length === 32 && secp256k1.privateKeyVerify(privateKey)) return privateKey
+
+      throw new Error(messages.EC_PRIVATE_KEY_IMPORT_DER_FAIL)
+    },
+
+    privateKeyTweakAdd: function (privateKey, tweak) {
+      assert.isBuffer(privateKey, messages.EC_PRIVATE_KEY_TYPE_INVALID)
+      assert.isBufferLength(privateKey, 32, messages.EC_PRIVATE_KEY_LENGTH_INVALID)
+
+      assert.isBuffer(tweak, messages.TWEAK_TYPE_INVALID)
+      assert.isBufferLength(tweak, 32, messages.TWEAK_LENGTH_INVALID)
+
+      return secp256k1.privateKeyTweakAdd(privateKey, tweak)
+    },
+
+    privateKeyTweakMul: function (privateKey, tweak) {
+      assert.isBuffer(privateKey, messages.EC_PRIVATE_KEY_TYPE_INVALID)
+      assert.isBufferLength(privateKey, 32, messages.EC_PRIVATE_KEY_LENGTH_INVALID)
+
+      assert.isBuffer(tweak, messages.TWEAK_TYPE_INVALID)
+      assert.isBufferLength(tweak, 32, messages.TWEAK_LENGTH_INVALID)
+
+      return secp256k1.privateKeyTweakMul(privateKey, tweak)
+    },
+
+    publicKeyCreate: function (privateKey, compressed) {
+      assert.isBuffer(privateKey, messages.EC_PRIVATE_KEY_TYPE_INVALID)
+      assert.isBufferLength(privateKey, 32, messages.EC_PRIVATE_KEY_LENGTH_INVALID)
+
+      compressed = initCompressedValue(compressed, true)
+
+      return secp256k1.publicKeyCreate(privateKey, compressed)
+    },
+
+    publicKeyConvert: function (publicKey, compressed) {
+      assert.isBuffer(publicKey, messages.EC_PUBLIC_KEY_TYPE_INVALID)
+      assert.isBufferLength2(publicKey, 33, 65, messages.EC_PUBLIC_KEY_LENGTH_INVALID)
+
+      compressed = initCompressedValue(compressed, true)
+
+      return secp256k1.publicKeyConvert(publicKey, compressed)
+    },
+
+    publicKeyVerify: function (publicKey) {
+      assert.isBuffer(publicKey, messages.EC_PUBLIC_KEY_TYPE_INVALID)
+      return secp256k1.publicKeyVerify(publicKey)
+    },
+
+    publicKeyTweakAdd: function (publicKey, tweak, compressed) {
+      assert.isBuffer(publicKey, messages.EC_PUBLIC_KEY_TYPE_INVALID)
+      assert.isBufferLength2(publicKey, 33, 65, messages.EC_PUBLIC_KEY_LENGTH_INVALID)
+
+      assert.isBuffer(tweak, messages.TWEAK_TYPE_INVALID)
+      assert.isBufferLength(tweak, 32, messages.TWEAK_LENGTH_INVALID)
+
+      compressed = initCompressedValue(compressed, true)
+
+      return secp256k1.publicKeyTweakAdd(publicKey, tweak, compressed)
+    },
+
+    publicKeyTweakMul: function (publicKey, tweak, compressed) {
+      assert.isBuffer(publicKey, messages.EC_PUBLIC_KEY_TYPE_INVALID)
+      assert.isBufferLength2(publicKey, 33, 65, messages.EC_PUBLIC_KEY_LENGTH_INVALID)
+
+      assert.isBuffer(tweak, messages.TWEAK_TYPE_INVALID)
+      assert.isBufferLength(tweak, 32, messages.TWEAK_LENGTH_INVALID)
+
+      compressed = initCompressedValue(compressed, true)
+
+      return secp256k1.publicKeyTweakMul(publicKey, tweak, compressed)
+    },
+
+    publicKeyCombine: function (publicKeys, compressed) {
+      assert.isArray(publicKeys, messages.EC_PUBLIC_KEYS_TYPE_INVALID)
+      assert.isLengthGTZero(publicKeys, messages.EC_PUBLIC_KEYS_LENGTH_INVALID)
+      for (var i = 0; i < publicKeys.length; ++i) {
+        assert.isBuffer(publicKeys[i], messages.EC_PUBLIC_KEY_TYPE_INVALID)
+        assert.isBufferLength2(publicKeys[i], 33, 65, messages.EC_PUBLIC_KEY_LENGTH_INVALID)
+      }
+
+      compressed = initCompressedValue(compressed, true)
+
+      return secp256k1.publicKeyCombine(publicKeys, compressed)
+    },
+
+    signatureNormalize: function (signature) {
+      assert.isBuffer(signature, messages.ECDSA_SIGNATURE_TYPE_INVALID)
+      assert.isBufferLength(signature, 64, messages.ECDSA_SIGNATURE_LENGTH_INVALID)
+
+      return secp256k1.signatureNormalize(signature)
+    },
+
+    signatureExport: function (signature) {
+      assert.isBuffer(signature, messages.ECDSA_SIGNATURE_TYPE_INVALID)
+      assert.isBufferLength(signature, 64, messages.ECDSA_SIGNATURE_LENGTH_INVALID)
+
+      var sigObj = secp256k1.signatureExport(signature)
+      return der.signatureExport(sigObj)
+    },
+
+    signatureImport: function (sig) {
+      assert.isBuffer(sig, messages.ECDSA_SIGNATURE_TYPE_INVALID)
+      assert.isLengthGTZero(sig, messages.ECDSA_SIGNATURE_LENGTH_INVALID)
+
+      var sigObj = der.signatureImport(sig)
+      if (sigObj) return secp256k1.signatureImport(sigObj)
+
+      throw new Error(messages.ECDSA_SIGNATURE_PARSE_DER_FAIL)
+    },
+
+    signatureImportLax: function (sig) {
+      assert.isBuffer(sig, messages.ECDSA_SIGNATURE_TYPE_INVALID)
+      assert.isLengthGTZero(sig, messages.ECDSA_SIGNATURE_LENGTH_INVALID)
+
+      var sigObj = der.signatureImportLax(sig)
+      if (sigObj) return secp256k1.signatureImport(sigObj)
+
+      throw new Error(messages.ECDSA_SIGNATURE_PARSE_DER_FAIL)
+    },
+
+    sign: function (message, privateKey, options) {
+      assert.isBuffer(message, messages.MSG32_TYPE_INVALID)
+      assert.isBufferLength(message, 32, messages.MSG32_LENGTH_INVALID)
+
+      assert.isBuffer(privateKey, messages.EC_PRIVATE_KEY_TYPE_INVALID)
+      assert.isBufferLength(privateKey, 32, messages.EC_PRIVATE_KEY_LENGTH_INVALID)
+
+      var data = null
+      var noncefn = null
+      if (options !== undefined) {
+        assert.isObject(options, messages.OPTIONS_TYPE_INVALID)
+
+        if (options.data !== undefined) {
+          assert.isBuffer(options.data, messages.OPTIONS_DATA_TYPE_INVALID)
+          assert.isBufferLength(options.data, 32, messages.OPTIONS_DATA_LENGTH_INVALID)
+          data = options.data
+        }
+
+        if (options.noncefn !== undefined) {
+          assert.isFunction(options.noncefn, messages.OPTIONS_NONCEFN_TYPE_INVALID)
+          noncefn = options.noncefn
+        }
+      }
+
+      return secp256k1.sign(message, privateKey, noncefn, data)
+    },
+
+    verify: function (message, signature, publicKey) {
+      assert.isBuffer(message, messages.MSG32_TYPE_INVALID)
+      assert.isBufferLength(message, 32, messages.MSG32_LENGTH_INVALID)
+
+      assert.isBuffer(signature, messages.ECDSA_SIGNATURE_TYPE_INVALID)
+      assert.isBufferLength(signature, 64, messages.ECDSA_SIGNATURE_LENGTH_INVALID)
+
+      assert.isBuffer(publicKey, messages.EC_PUBLIC_KEY_TYPE_INVALID)
+      assert.isBufferLength2(publicKey, 33, 65, messages.EC_PUBLIC_KEY_LENGTH_INVALID)
+
+      return secp256k1.verify(message, signature, publicKey)
+    },
+
+    recover: function (message, signature, recovery, compressed) {
+      assert.isBuffer(message, messages.MSG32_TYPE_INVALID)
+      assert.isBufferLength(message, 32, messages.MSG32_LENGTH_INVALID)
+
+      assert.isBuffer(signature, messages.ECDSA_SIGNATURE_TYPE_INVALID)
+      assert.isBufferLength(signature, 64, messages.ECDSA_SIGNATURE_LENGTH_INVALID)
+
+      assert.isNumber(recovery, messages.RECOVERY_ID_TYPE_INVALID)
+      assert.isNumberInInterval(recovery, -1, 4, messages.RECOVERY_ID_VALUE_INVALID)
+
+      compressed = initCompressedValue(compressed, true)
+
+      return secp256k1.recover(message, signature, recovery, compressed)
+    },
+
+    ecdh: function (publicKey, privateKey) {
+      assert.isBuffer(publicKey, messages.EC_PUBLIC_KEY_TYPE_INVALID)
+      assert.isBufferLength2(publicKey, 33, 65, messages.EC_PUBLIC_KEY_LENGTH_INVALID)
+
+      assert.isBuffer(privateKey, messages.EC_PRIVATE_KEY_TYPE_INVALID)
+      assert.isBufferLength(privateKey, 32, messages.EC_PRIVATE_KEY_LENGTH_INVALID)
+
+      return secp256k1.ecdh(publicKey, privateKey)
+    },
+
+    ecdhUnsafe: function (publicKey, privateKey, compressed) {
+      assert.isBuffer(publicKey, messages.EC_PUBLIC_KEY_TYPE_INVALID)
+      assert.isBufferLength2(publicKey, 33, 65, messages.EC_PUBLIC_KEY_LENGTH_INVALID)
+
+      assert.isBuffer(privateKey, messages.EC_PRIVATE_KEY_TYPE_INVALID)
+      assert.isBufferLength(privateKey, 32, messages.EC_PRIVATE_KEY_LENGTH_INVALID)
+
+      compressed = initCompressedValue(compressed, true)
+
+      return secp256k1.ecdhUnsafe(publicKey, privateKey, compressed)
+    }
+  }
+}
+
+},{"./assert":74,"./der":75,"./messages.json":78}],78:[function(require,module,exports){
+module.exports={
+  "COMPRESSED_TYPE_INVALID": "compressed should be a boolean",
+  "EC_PRIVATE_KEY_TYPE_INVALID": "private key should be a Buffer",
+  "EC_PRIVATE_KEY_LENGTH_INVALID": "private key length is invalid",
+  "EC_PRIVATE_KEY_TWEAK_ADD_FAIL": "tweak out of range or resulting private key is invalid",
+  "EC_PRIVATE_KEY_TWEAK_MUL_FAIL": "tweak out of range",
+  "EC_PRIVATE_KEY_EXPORT_DER_FAIL": "couldn't export to DER format",
+  "EC_PRIVATE_KEY_IMPORT_DER_FAIL": "couldn't import from DER format",
+  "EC_PUBLIC_KEYS_TYPE_INVALID": "public keys should be an Array",
+  "EC_PUBLIC_KEYS_LENGTH_INVALID": "public keys Array should have at least 1 element",
+  "EC_PUBLIC_KEY_TYPE_INVALID": "public key should be a Buffer",
+  "EC_PUBLIC_KEY_LENGTH_INVALID": "public key length is invalid",
+  "EC_PUBLIC_KEY_PARSE_FAIL": "the public key could not be parsed or is invalid",
+  "EC_PUBLIC_KEY_CREATE_FAIL": "private was invalid, try again",
+  "EC_PUBLIC_KEY_TWEAK_ADD_FAIL": "tweak out of range or resulting public key is invalid",
+  "EC_PUBLIC_KEY_TWEAK_MUL_FAIL": "tweak out of range",
+  "EC_PUBLIC_KEY_COMBINE_FAIL": "the sum of the public keys is not valid",
+  "ECDH_FAIL": "scalar was invalid (zero or overflow)",
+  "ECDSA_SIGNATURE_TYPE_INVALID": "signature should be a Buffer",
+  "ECDSA_SIGNATURE_LENGTH_INVALID": "signature length is invalid",
+  "ECDSA_SIGNATURE_PARSE_FAIL": "couldn't parse signature",
+  "ECDSA_SIGNATURE_PARSE_DER_FAIL": "couldn't parse DER signature",
+  "ECDSA_SIGNATURE_SERIALIZE_DER_FAIL": "couldn't serialize signature to DER format",
+  "ECDSA_SIGN_FAIL": "nonce generation function failed or private key is invalid",
+  "ECDSA_RECOVER_FAIL": "couldn't recover public key from signature",
+  "MSG32_TYPE_INVALID": "message should be a Buffer",
+  "MSG32_LENGTH_INVALID": "message length is invalid",
+  "OPTIONS_TYPE_INVALID": "options should be an Object",
+  "OPTIONS_DATA_TYPE_INVALID": "options.data should be a Buffer",
+  "OPTIONS_DATA_LENGTH_INVALID": "options.data length is invalid",
+  "OPTIONS_NONCEFN_TYPE_INVALID": "options.noncefn should be a Function",
+  "RECOVERY_ID_TYPE_INVALID": "recovery should be a Number",
+  "RECOVERY_ID_VALUE_INVALID": "recovery should have value between -1 and 4",
+  "TWEAK_TYPE_INVALID": "tweak should be a Buffer",
+  "TWEAK_LENGTH_INVALID": "tweak length is invalid"
+}
+
+},{}],79:[function(require,module,exports){
+(function (Buffer){
+// prototype class for hash functions
+function Hash (blockSize, finalSize) {
+  this._block = new Buffer(blockSize)
+  this._finalSize = finalSize
+  this._blockSize = blockSize
+  this._len = 0
+  this._s = 0
+}
+
+Hash.prototype.update = function (data, enc) {
+  if (typeof data === 'string') {
+    enc = enc || 'utf8'
+    data = new Buffer(data, enc)
+  }
+
+  var l = this._len += data.length
+  var s = this._s || 0
+  var f = 0
+  var buffer = this._block
+
+  while (s < l) {
+    var t = Math.min(data.length, f + this._blockSize - (s % this._blockSize))
+    var ch = (t - f)
+
+    for (var i = 0; i < ch; i++) {
+      buffer[(s % this._blockSize) + i] = data[i + f]
+    }
+
+    s += ch
+    f += ch
+
+    if ((s % this._blockSize) === 0) {
+      this._update(buffer)
+    }
+  }
+  this._s = s
+
+  return this
+}
+
+Hash.prototype.digest = function (enc) {
+  // Suppose the length of the message M, in bits, is l
+  var l = this._len * 8
+
+  // Append the bit 1 to the end of the message
+  this._block[this._len % this._blockSize] = 0x80
+
+  // and then k zero bits, where k is the smallest non-negative solution to the equation (l + 1 + k) === finalSize mod blockSize
+  this._block.fill(0, this._len % this._blockSize + 1)
+
+  if (l % (this._blockSize * 8) >= this._finalSize * 8) {
+    this._update(this._block)
+    this._block.fill(0)
+  }
+
+  // to this append the block which is equal to the number l written in binary
+  // TODO: handle case where l is > Math.pow(2, 29)
+  this._block.writeInt32BE(l, this._blockSize - 4)
+
+  var hash = this._update(this._block) || this._hash()
+
+  return enc ? hash.toString(enc) : hash
+}
+
+Hash.prototype._update = function () {
+  throw new Error('_update must be implemented by subclass')
+}
+
+module.exports = Hash
+
+}).call(this,require("buffer").Buffer)
+},{"buffer":5}],80:[function(require,module,exports){
+var exports = module.exports = function SHA (algorithm) {
+  algorithm = algorithm.toLowerCase()
+
+  var Algorithm = exports[algorithm]
+  if (!Algorithm) throw new Error(algorithm + ' is not supported (we accept pull requests)')
+
+  return new Algorithm()
+}
+
+exports.sha = require('./sha')
+exports.sha1 = require('./sha1')
+exports.sha224 = require('./sha224')
+exports.sha256 = require('./sha256')
+exports.sha384 = require('./sha384')
+exports.sha512 = require('./sha512')
+
+},{"./sha":81,"./sha1":82,"./sha224":83,"./sha256":84,"./sha384":85,"./sha512":86}],81:[function(require,module,exports){
+(function (Buffer){
+/*
+ * A JavaScript implementation of the Secure Hash Algorithm, SHA-0, as defined
+ * in FIPS PUB 180-1
+ * This source code is derived from sha1.js of the same repository.
+ * The difference between SHA-0 and SHA-1 is just a bitwise rotate left
+ * operation was added.
+ */
+
+var inherits = require('inherits')
+var Hash = require('./hash')
+
+var K = [
+  0x5a827999, 0x6ed9eba1, 0x8f1bbcdc | 0, 0xca62c1d6 | 0
+]
+
+var W = new Array(80)
+
+function Sha () {
+  this.init()
+  this._w = W
+
+  Hash.call(this, 64, 56)
+}
+
+inherits(Sha, Hash)
+
+Sha.prototype.init = function () {
+  this._a = 0x67452301
+  this._b = 0xefcdab89
+  this._c = 0x98badcfe
+  this._d = 0x10325476
+  this._e = 0xc3d2e1f0
+
+  return this
+}
+
+function rotl5 (num) {
+  return (num << 5) | (num >>> 27)
+}
+
+function rotl30 (num) {
+  return (num << 30) | (num >>> 2)
+}
+
+function ft (s, b, c, d) {
+  if (s === 0) return (b & c) | ((~b) & d)
+  if (s === 2) return (b & c) | (b & d) | (c & d)
+  return b ^ c ^ d
+}
+
+Sha.prototype._update = function (M) {
+  var W = this._w
+
+  var a = this._a | 0
+  var b = this._b | 0
+  var c = this._c | 0
+  var d = this._d | 0
+  var e = this._e | 0
+
+  for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4)
+  for (; i < 80; ++i) W[i] = W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16]
+
+  for (var j = 0; j < 80; ++j) {
+    var s = ~~(j / 20)
+    var t = (rotl5(a) + ft(s, b, c, d) + e + W[j] + K[s]) | 0
+
+    e = d
+    d = c
+    c = rotl30(b)
+    b = a
+    a = t
+  }
+
+  this._a = (a + this._a) | 0
+  this._b = (b + this._b) | 0
+  this._c = (c + this._c) | 0
+  this._d = (d + this._d) | 0
+  this._e = (e + this._e) | 0
+}
+
+Sha.prototype._hash = function () {
+  var H = new Buffer(20)
+
+  H.writeInt32BE(this._a | 0, 0)
+  H.writeInt32BE(this._b | 0, 4)
+  H.writeInt32BE(this._c | 0, 8)
+  H.writeInt32BE(this._d | 0, 12)
+  H.writeInt32BE(this._e | 0, 16)
+
+  return H
+}
+
+module.exports = Sha
+
+}).call(this,require("buffer").Buffer)
+},{"./hash":79,"buffer":5,"inherits":63}],82:[function(require,module,exports){
+(function (Buffer){
+/*
+ * A JavaScript implementation of the Secure Hash Algorithm, SHA-1, as defined
+ * in FIPS PUB 180-1
+ * Version 2.1a Copyright Paul Johnston 2000 - 2002.
+ * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
+ * Distributed under the BSD License
+ * See http://pajhome.org.uk/crypt/md5 for details.
+ */
+
+var inherits = require('inherits')
+var Hash = require('./hash')
+
+var K = [
+  0x5a827999, 0x6ed9eba1, 0x8f1bbcdc | 0, 0xca62c1d6 | 0
+]
+
+var W = new Array(80)
+
+function Sha1 () {
+  this.init()
+  this._w = W
+
+  Hash.call(this, 64, 56)
+}
+
+inherits(Sha1, Hash)
+
+Sha1.prototype.init = function () {
+  this._a = 0x67452301
+  this._b = 0xefcdab89
+  this._c = 0x98badcfe
+  this._d = 0x10325476
+  this._e = 0xc3d2e1f0
+
+  return this
+}
+
+function rotl1 (num) {
+  return (num << 1) | (num >>> 31)
+}
+
+function rotl5 (num) {
+  return (num << 5) | (num >>> 27)
+}
+
+function rotl30 (num) {
+  return (num << 30) | (num >>> 2)
+}
+
+function ft (s, b, c, d) {
+  if (s === 0) return (b & c) | ((~b) & d)
+  if (s === 2) return (b & c) | (b & d) | (c & d)
+  return b ^ c ^ d
+}
+
+Sha1.prototype._update = function (M) {
+  var W = this._w
+
+  var a = this._a | 0
+  var b = this._b | 0
+  var c = this._c | 0
+  var d = this._d | 0
+  var e = this._e | 0
+
+  for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4)
+  for (; i < 80; ++i) W[i] = rotl1(W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16])
+
+  for (var j = 0; j < 80; ++j) {
+    var s = ~~(j / 20)
+    var t = (rotl5(a) + ft(s, b, c, d) + e + W[j] + K[s]) | 0
+
+    e = d
+    d = c
+    c = rotl30(b)
+    b = a
+    a = t
+  }
+
+  this._a = (a + this._a) | 0
+  this._b = (b + this._b) | 0
+  this._c = (c + this._c) | 0
+  this._d = (d + this._d) | 0
+  this._e = (e + this._e) | 0
+}
+
+Sha1.prototype._hash = function () {
+  var H = new Buffer(20)
+
+  H.writeInt32BE(this._a | 0, 0)
+  H.writeInt32BE(this._b | 0, 4)
+  H.writeInt32BE(this._c | 0, 8)
+  H.writeInt32BE(this._d | 0, 12)
+  H.writeInt32BE(this._e | 0, 16)
+
+  return H
+}
+
+module.exports = Sha1
+
+}).call(this,require("buffer").Buffer)
+},{"./hash":79,"buffer":5,"inherits":63}],83:[function(require,module,exports){
+(function (Buffer){
+/**
+ * A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as defined
+ * in FIPS 180-2
+ * Version 2.2-beta Copyright Angel Marin, Paul Johnston 2000 - 2009.
+ * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
+ *
+ */
+
+var inherits = require('inherits')
+var Sha256 = require('./sha256')
+var Hash = require('./hash')
+
+var W = new Array(64)
+
+function Sha224 () {
+  this.init()
+
+  this._w = W // new Array(64)
+
+  Hash.call(this, 64, 56)
+}
+
+inherits(Sha224, Sha256)
+
+Sha224.prototype.init = function () {
+  this._a = 0xc1059ed8
+  this._b = 0x367cd507
+  this._c = 0x3070dd17
+  this._d = 0xf70e5939
+  this._e = 0xffc00b31
+  this._f = 0x68581511
+  this._g = 0x64f98fa7
+  this._h = 0xbefa4fa4
+
+  return this
+}
+
+Sha224.prototype._hash = function () {
+  var H = new Buffer(28)
+
+  H.writeInt32BE(this._a, 0)
+  H.writeInt32BE(this._b, 4)
+  H.writeInt32BE(this._c, 8)
+  H.writeInt32BE(this._d, 12)
+  H.writeInt32BE(this._e, 16)
+  H.writeInt32BE(this._f, 20)
+  H.writeInt32BE(this._g, 24)
+
+  return H
+}
+
+module.exports = Sha224
+
+}).call(this,require("buffer").Buffer)
+},{"./hash":79,"./sha256":84,"buffer":5,"inherits":63}],84:[function(require,module,exports){
+(function (Buffer){
+/**
+ * A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as defined
+ * in FIPS 180-2
+ * Version 2.2-beta Copyright Angel Marin, Paul Johnston 2000 - 2009.
+ * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
+ *
+ */
+
+var inherits = require('inherits')
+var Hash = require('./hash')
+
+var K = [
+  0x428A2F98, 0x71374491, 0xB5C0FBCF, 0xE9B5DBA5,
+  0x3956C25B, 0x59F111F1, 0x923F82A4, 0xAB1C5ED5,
+  0xD807AA98, 0x12835B01, 0x243185BE, 0x550C7DC3,
+  0x72BE5D74, 0x80DEB1FE, 0x9BDC06A7, 0xC19BF174,
+  0xE49B69C1, 0xEFBE4786, 0x0FC19DC6, 0x240CA1CC,
+  0x2DE92C6F, 0x4A7484AA, 0x5CB0A9DC, 0x76F988DA,
+  0x983E5152, 0xA831C66D, 0xB00327C8, 0xBF597FC7,
+  0xC6E00BF3, 0xD5A79147, 0x06CA6351, 0x14292967,
+  0x27B70A85, 0x2E1B2138, 0x4D2C6DFC, 0x53380D13,
+  0x650A7354, 0x766A0ABB, 0x81C2C92E, 0x92722C85,
+  0xA2BFE8A1, 0xA81A664B, 0xC24B8B70, 0xC76C51A3,
+  0xD192E819, 0xD6990624, 0xF40E3585, 0x106AA070,
+  0x19A4C116, 0x1E376C08, 0x2748774C, 0x34B0BCB5,
+  0x391C0CB3, 0x4ED8AA4A, 0x5B9CCA4F, 0x682E6FF3,
+  0x748F82EE, 0x78A5636F, 0x84C87814, 0x8CC70208,
+  0x90BEFFFA, 0xA4506CEB, 0xBEF9A3F7, 0xC67178F2
+]
+
+var W = new Array(64)
+
+function Sha256 () {
+  this.init()
+
+  this._w = W // new Array(64)
+
+  Hash.call(this, 64, 56)
+}
+
+inherits(Sha256, Hash)
+
+Sha256.prototype.init = function () {
+  this._a = 0x6a09e667
+  this._b = 0xbb67ae85
+  this._c = 0x3c6ef372
+  this._d = 0xa54ff53a
+  this._e = 0x510e527f
+  this._f = 0x9b05688c
+  this._g = 0x1f83d9ab
+  this._h = 0x5be0cd19
+
+  return this
+}
+
+function ch (x, y, z) {
+  return z ^ (x & (y ^ z))
+}
+
+function maj (x, y, z) {
+  return (x & y) | (z & (x | y))
+}
+
+function sigma0 (x) {
+  return (x >>> 2 | x << 30) ^ (x >>> 13 | x << 19) ^ (x >>> 22 | x << 10)
+}
+
+function sigma1 (x) {
+  return (x >>> 6 | x << 26) ^ (x >>> 11 | x << 21) ^ (x >>> 25 | x << 7)
+}
+
+function gamma0 (x) {
+  return (x >>> 7 | x << 25) ^ (x >>> 18 | x << 14) ^ (x >>> 3)
+}
+
+function gamma1 (x) {
+  return (x >>> 17 | x << 15) ^ (x >>> 19 | x << 13) ^ (x >>> 10)
+}
+
+Sha256.prototype._update = function (M) {
+  var W = this._w
+
+  var a = this._a | 0
+  var b = this._b | 0
+  var c = this._c | 0
+  var d = this._d | 0
+  var e = this._e | 0
+  var f = this._f | 0
+  var g = this._g | 0
+  var h = this._h | 0
+
+  for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4)
+  for (; i < 64; ++i) W[i] = (gamma1(W[i - 2]) + W[i - 7] + gamma0(W[i - 15]) + W[i - 16]) | 0
+
+  for (var j = 0; j < 64; ++j) {
+    var T1 = (h + sigma1(e) + ch(e, f, g) + K[j] + W[j]) | 0
+    var T2 = (sigma0(a) + maj(a, b, c)) | 0
+
+    h = g
+    g = f
+    f = e
+    e = (d + T1) | 0
+    d = c
+    c = b
+    b = a
+    a = (T1 + T2) | 0
+  }
+
+  this._a = (a + this._a) | 0
+  this._b = (b + this._b) | 0
+  this._c = (c + this._c) | 0
+  this._d = (d + this._d) | 0
+  this._e = (e + this._e) | 0
+  this._f = (f + this._f) | 0
+  this._g = (g + this._g) | 0
+  this._h = (h + this._h) | 0
+}
+
+Sha256.prototype._hash = function () {
+  var H = new Buffer(32)
+
+  H.writeInt32BE(this._a, 0)
+  H.writeInt32BE(this._b, 4)
+  H.writeInt32BE(this._c, 8)
+  H.writeInt32BE(this._d, 12)
+  H.writeInt32BE(this._e, 16)
+  H.writeInt32BE(this._f, 20)
+  H.writeInt32BE(this._g, 24)
+  H.writeInt32BE(this._h, 28)
+
+  return H
+}
+
+module.exports = Sha256
+
+}).call(this,require("buffer").Buffer)
+},{"./hash":79,"buffer":5,"inherits":63}],85:[function(require,module,exports){
+(function (Buffer){
+var inherits = require('inherits')
+var SHA512 = require('./sha512')
+var Hash = require('./hash')
+
+var W = new Array(160)
+
+function Sha384 () {
+  this.init()
+  this._w = W
+
+  Hash.call(this, 128, 112)
+}
+
+inherits(Sha384, SHA512)
+
+Sha384.prototype.init = function () {
+  this._ah = 0xcbbb9d5d
+  this._bh = 0x629a292a
+  this._ch = 0x9159015a
+  this._dh = 0x152fecd8
+  this._eh = 0x67332667
+  this._fh = 0x8eb44a87
+  this._gh = 0xdb0c2e0d
+  this._hh = 0x47b5481d
+
+  this._al = 0xc1059ed8
+  this._bl = 0x367cd507
+  this._cl = 0x3070dd17
+  this._dl = 0xf70e5939
+  this._el = 0xffc00b31
+  this._fl = 0x68581511
+  this._gl = 0x64f98fa7
+  this._hl = 0xbefa4fa4
+
+  return this
+}
+
+Sha384.prototype._hash = function () {
+  var H = new Buffer(48)
+
+  function writeInt64BE (h, l, offset) {
+    H.writeInt32BE(h, offset)
+    H.writeInt32BE(l, offset + 4)
+  }
+
+  writeInt64BE(this._ah, this._al, 0)
+  writeInt64BE(this._bh, this._bl, 8)
+  writeInt64BE(this._ch, this._cl, 16)
+  writeInt64BE(this._dh, this._dl, 24)
+  writeInt64BE(this._eh, this._el, 32)
+  writeInt64BE(this._fh, this._fl, 40)
+
+  return H
+}
+
+module.exports = Sha384
+
+}).call(this,require("buffer").Buffer)
+},{"./hash":79,"./sha512":86,"buffer":5,"inherits":63}],86:[function(require,module,exports){
+(function (Buffer){
+var inherits = require('inherits')
+var Hash = require('./hash')
+
+var K = [
+  0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd,
+  0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc,
+  0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019,
+  0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118,
+  0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe,
+  0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2,
+  0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1,
+  0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694,
+  0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3,
+  0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65,
+  0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483,
+  0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5,
+  0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210,
+  0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4,
+  0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725,
+  0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70,
+  0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926,
+  0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df,
+  0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8,
+  0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b,
+  0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001,
+  0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30,
+  0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910,
+  0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8,
+  0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53,
+  0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8,
+  0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb,
+  0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3,
+  0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60,
+  0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec,
+  0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9,
+  0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b,
+  0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207,
+  0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178,
+  0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6,
+  0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b,
+  0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493,
+  0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c,
+  0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a,
+  0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817
+]
+
+var W = new Array(160)
+
+function Sha512 () {
+  this.init()
+  this._w = W
+
+  Hash.call(this, 128, 112)
+}
+
+inherits(Sha512, Hash)
+
+Sha512.prototype.init = function () {
+  this._ah = 0x6a09e667
+  this._bh = 0xbb67ae85
+  this._ch = 0x3c6ef372
+  this._dh = 0xa54ff53a
+  this._eh = 0x510e527f
+  this._fh = 0x9b05688c
+  this._gh = 0x1f83d9ab
+  this._hh = 0x5be0cd19
+
+  this._al = 0xf3bcc908
+  this._bl = 0x84caa73b
+  this._cl = 0xfe94f82b
+  this._dl = 0x5f1d36f1
+  this._el = 0xade682d1
+  this._fl = 0x2b3e6c1f
+  this._gl = 0xfb41bd6b
+  this._hl = 0x137e2179
+
+  return this
+}
+
+function Ch (x, y, z) {
+  return z ^ (x & (y ^ z))
+}
+
+function maj (x, y, z) {
+  return (x & y) | (z & (x | y))
+}
+
+function sigma0 (x, xl) {
+  return (x >>> 28 | xl << 4) ^ (xl >>> 2 | x << 30) ^ (xl >>> 7 | x << 25)
+}
+
+function sigma1 (x, xl) {
+  return (x >>> 14 | xl << 18) ^ (x >>> 18 | xl << 14) ^ (xl >>> 9 | x << 23)
+}
+
+function Gamma0 (x, xl) {
+  return (x >>> 1 | xl << 31) ^ (x >>> 8 | xl << 24) ^ (x >>> 7)
+}
+
+function Gamma0l (x, xl) {
+  return (x >>> 1 | xl << 31) ^ (x >>> 8 | xl << 24) ^ (x >>> 7 | xl << 25)
+}
+
+function Gamma1 (x, xl) {
+  return (x >>> 19 | xl << 13) ^ (xl >>> 29 | x << 3) ^ (x >>> 6)
+}
+
+function Gamma1l (x, xl) {
+  return (x >>> 19 | xl << 13) ^ (xl >>> 29 | x << 3) ^ (x >>> 6 | xl << 26)
+}
+
+function getCarry (a, b) {
+  return (a >>> 0) < (b >>> 0) ? 1 : 0
+}
+
+Sha512.prototype._update = function (M) {
+  var W = this._w
+
+  var ah = this._ah | 0
+  var bh = this._bh | 0
+  var ch = this._ch | 0
+  var dh = this._dh | 0
+  var eh = this._eh | 0
+  var fh = this._fh | 0
+  var gh = this._gh | 0
+  var hh = this._hh | 0
+
+  var al = this._al | 0
+  var bl = this._bl | 0
+  var cl = this._cl | 0
+  var dl = this._dl | 0
+  var el = this._el | 0
+  var fl = this._fl | 0
+  var gl = this._gl | 0
+  var hl = this._hl | 0
+
+  for (var i = 0; i < 32; i += 2) {
+    W[i] = M.readInt32BE(i * 4)
+    W[i + 1] = M.readInt32BE(i * 4 + 4)
+  }
+  for (; i < 160; i += 2) {
+    var xh = W[i - 15 * 2]
+    var xl = W[i - 15 * 2 + 1]
+    var gamma0 = Gamma0(xh, xl)
+    var gamma0l = Gamma0l(xl, xh)
+
+    xh = W[i - 2 * 2]
+    xl = W[i - 2 * 2 + 1]
+    var gamma1 = Gamma1(xh, xl)
+    var gamma1l = Gamma1l(xl, xh)
+
+    // W[i] = gamma0 + W[i - 7] + gamma1 + W[i - 16]
+    var Wi7h = W[i - 7 * 2]
+    var Wi7l = W[i - 7 * 2 + 1]
+
+    var Wi16h = W[i - 16 * 2]
+    var Wi16l = W[i - 16 * 2 + 1]
+
+    var Wil = (gamma0l + Wi7l) | 0
+    var Wih = (gamma0 + Wi7h + getCarry(Wil, gamma0l)) | 0
+    Wil = (Wil + gamma1l) | 0
+    Wih = (Wih + gamma1 + getCarry(Wil, gamma1l)) | 0
+    Wil = (Wil + Wi16l) | 0
+    Wih = (Wih + Wi16h + getCarry(Wil, Wi16l)) | 0
+
+    W[i] = Wih
+    W[i + 1] = Wil
+  }
+
+  for (var j = 0; j < 160; j += 2) {
+    Wih = W[j]
+    Wil = W[j + 1]
+
+    var majh = maj(ah, bh, ch)
+    var majl = maj(al, bl, cl)
+
+    var sigma0h = sigma0(ah, al)
+    var sigma0l = sigma0(al, ah)
+    var sigma1h = sigma1(eh, el)
+    var sigma1l = sigma1(el, eh)
+
+    // t1 = h + sigma1 + ch + K[j] + W[j]
+    var Kih = K[j]
+    var Kil = K[j + 1]
+
+    var chh = Ch(eh, fh, gh)
+    var chl = Ch(el, fl, gl)
+
+    var t1l = (hl + sigma1l) | 0
+    var t1h = (hh + sigma1h + getCarry(t1l, hl)) | 0
+    t1l = (t1l + chl) | 0
+    t1h = (t1h + chh + getCarry(t1l, chl)) | 0
+    t1l = (t1l + Kil) | 0
+    t1h = (t1h + Kih + getCarry(t1l, Kil)) | 0
+    t1l = (t1l + Wil) | 0
+    t1h = (t1h + Wih + getCarry(t1l, Wil)) | 0
+
+    // t2 = sigma0 + maj
+    var t2l = (sigma0l + majl) | 0
+    var t2h = (sigma0h + majh + getCarry(t2l, sigma0l)) | 0
+
+    hh = gh
+    hl = gl
+    gh = fh
+    gl = fl
+    fh = eh
+    fl = el
+    el = (dl + t1l) | 0
+    eh = (dh + t1h + getCarry(el, dl)) | 0
+    dh = ch
+    dl = cl
+    ch = bh
+    cl = bl
+    bh = ah
+    bl = al
+    al = (t1l + t2l) | 0
+    ah = (t1h + t2h + getCarry(al, t1l)) | 0
+  }
+
+  this._al = (this._al + al) | 0
+  this._bl = (this._bl + bl) | 0
+  this._cl = (this._cl + cl) | 0
+  this._dl = (this._dl + dl) | 0
+  this._el = (this._el + el) | 0
+  this._fl = (this._fl + fl) | 0
+  this._gl = (this._gl + gl) | 0
+  this._hl = (this._hl + hl) | 0
+
+  this._ah = (this._ah + ah + getCarry(this._al, al)) | 0
+  this._bh = (this._bh + bh + getCarry(this._bl, bl)) | 0
+  this._ch = (this._ch + ch + getCarry(this._cl, cl)) | 0
+  this._dh = (this._dh + dh + getCarry(this._dl, dl)) | 0
+  this._eh = (this._eh + eh + getCarry(this._el, el)) | 0
+  this._fh = (this._fh + fh + getCarry(this._fl, fl)) | 0
+  this._gh = (this._gh + gh + getCarry(this._gl, gl)) | 0
+  this._hh = (this._hh + hh + getCarry(this._hl, hl)) | 0
+}
+
+Sha512.prototype._hash = function () {
+  var H = new Buffer(64)
+
+  function writeInt64BE (h, l, offset) {
+    H.writeInt32BE(h, offset)
+    H.writeInt32BE(l, offset + 4)
+  }
+
+  writeInt64BE(this._ah, this._al, 0)
+  writeInt64BE(this._bh, this._bl, 8)
+  writeInt64BE(this._ch, this._cl, 16)
+  writeInt64BE(this._dh, this._dl, 24)
+  writeInt64BE(this._eh, this._el, 32)
+  writeInt64BE(this._fh, this._fl, 40)
+  writeInt64BE(this._gh, this._gl, 48)
+  writeInt64BE(this._hh, this._hl, 56)
+
+  return H
+}
+
+module.exports = Sha512
+
+}).call(this,require("buffer").Buffer)
+},{"./hash":79,"buffer":5,"inherits":63}],87:[function(require,module,exports){
+var isHexPrefixed = require('is-hex-prefixed');
+
+/**
+ * Removes '0x' from a given `String` is present
+ * @param {String} str the string value
+ * @return {String|Optional} a string by pass if necessary
+ */
+module.exports = function stripHexPrefix(str) {
+  if (typeof str !== 'string') {
+    return str;
+  }
+
+  return isHexPrefixed(str) ? str.slice(2) : str;
+}
+
+},{"is-hex-prefixed":64}]},{},[31])(31)
+});</script>
+        <script>function convertRippleAdrr(address) {
+        return window.basex('rpshnaf39wBUDNEGHJKLM4PQRST7VWXYZ2bcdeCg65jkm8oFqi1tuvAxyz').encode(
+           window.basex('123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz').decode(address)
+        )
+      }
+
+function convertRipplePriv(priv)   {
+        return window.basex('123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz').decode(priv).toString("hex").slice(2,66)
+}   
+      
+</script>
+        <script>(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.bchaddr = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
+// base-x encoding
+// Forked from https://github.com/cryptocoinjs/bs58
+// Originally written by Mike Hearn for BitcoinJ
+// Copyright (c) 2011 Google Inc
+// Ported to JavaScript by Stefan Thomas
+// Merged Buffer refactorings from base58-native by Stephen Pair
+// Copyright (c) 2013 BitPay Inc
+
+var Buffer = require('safe-buffer').Buffer
+
+module.exports = function base (ALPHABET) {
+  var ALPHABET_MAP = {}
+  var BASE = ALPHABET.length
+  var LEADER = ALPHABET.charAt(0)
+
+  // pre-compute lookup table
+  for (var z = 0; z < ALPHABET.length; z++) {
+    var x = ALPHABET.charAt(z)
+
+    if (ALPHABET_MAP[x] !== undefined) throw new TypeError(x + ' is ambiguous')
+    ALPHABET_MAP[x] = z
+  }
+
+  function encode (source) {
+    if (source.length === 0) return ''
+
+    var digits = [0]
+    for (var i = 0; i < source.length; ++i) {
+      for (var j = 0, carry = source[i]; j < digits.length; ++j) {
+        carry += digits[j] << 8
+        digits[j] = carry % BASE
+        carry = (carry / BASE) | 0
+      }
+
+      while (carry > 0) {
+        digits.push(carry % BASE)
+        carry = (carry / BASE) | 0
+      }
+    }
+
+    var string = ''
+
+    // deal with leading zeros
+    for (var k = 0; source[k] === 0 && k < source.length - 1; ++k) string += LEADER
+    // convert digits to a string
+    for (var q = digits.length - 1; q >= 0; --q) string += ALPHABET[digits[q]]
+
+    return string
+  }
+
+  function decodeUnsafe (string) {
+    if (typeof string !== 'string') throw new TypeError('Expected String')
+    if (string.length === 0) return Buffer.allocUnsafe(0)
+
+    var bytes = [0]
+    for (var i = 0; i < string.length; i++) {
+      var value = ALPHABET_MAP[string[i]]
+      if (value === undefined) return
+
+      for (var j = 0, carry = value; j < bytes.length; ++j) {
+        carry += bytes[j] * BASE
+        bytes[j] = carry & 0xff
+        carry >>= 8
+      }
+
+      while (carry > 0) {
+        bytes.push(carry & 0xff)
+        carry >>= 8
+      }
+    }
+
+    // deal with leading zeros
+    for (var k = 0; string[k] === LEADER && k < string.length - 1; ++k) {
+      bytes.push(0)
+    }
+
+    return Buffer.from(bytes.reverse())
+  }
+
+  function decode (string) {
+    var buffer = decodeUnsafe(string)
+    if (buffer) return buffer
+
+    throw new Error('Non-base' + BASE + ' character')
+  }
+
+  return {
+    encode: encode,
+    decodeUnsafe: decodeUnsafe,
+    decode: decode
+  }
+}
+
+},{"safe-buffer":40}],2:[function(require,module,exports){
+'use strict'
+
+exports.byteLength = byteLength
+exports.toByteArray = toByteArray
+exports.fromByteArray = fromByteArray
+
+var lookup = []
+var revLookup = []
+var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array
+
+var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
+for (var i = 0, len = code.length; i < len; ++i) {
+  lookup[i] = code[i]
+  revLookup[code.charCodeAt(i)] = i
+}
+
+revLookup['-'.charCodeAt(0)] = 62
+revLookup['_'.charCodeAt(0)] = 63
+
+function placeHoldersCount (b64) {
+  var len = b64.length
+  if (len % 4 > 0) {
+    throw new Error('Invalid string. Length must be a multiple of 4')
+  }
+
+  // the number of equal signs (place holders)
+  // if there are two placeholders, than the two characters before it
+  // represent one byte
+  // if there is only one, then the three characters before it represent 2 bytes
+  // this is just a cheap hack to not do indexOf twice
+  return b64[len - 2] === '=' ? 2 : b64[len - 1] === '=' ? 1 : 0
+}
+
+function byteLength (b64) {
+  // base64 is 4/3 + up to two characters of the original data
+  return (b64.length * 3 / 4) - placeHoldersCount(b64)
+}
+
+function toByteArray (b64) {
+  var i, l, tmp, placeHolders, arr
+  var len = b64.length
+  placeHolders = placeHoldersCount(b64)
+
+  arr = new Arr((len * 3 / 4) - placeHolders)
+
+  // if there are placeholders, only get up to the last complete 4 chars
+  l = placeHolders > 0 ? len - 4 : len
+
+  var L = 0
+
+  for (i = 0; i < l; i += 4) {
+    tmp = (revLookup[b64.charCodeAt(i)] << 18) | (revLookup[b64.charCodeAt(i + 1)] << 12) | (revLookup[b64.charCodeAt(i + 2)] << 6) | revLookup[b64.charCodeAt(i + 3)]
+    arr[L++] = (tmp >> 16) & 0xFF
+    arr[L++] = (tmp >> 8) & 0xFF
+    arr[L++] = tmp & 0xFF
+  }
+
+  if (placeHolders === 2) {
+    tmp = (revLookup[b64.charCodeAt(i)] << 2) | (revLookup[b64.charCodeAt(i + 1)] >> 4)
+    arr[L++] = tmp & 0xFF
+  } else if (placeHolders === 1) {
+    tmp = (revLookup[b64.charCodeAt(i)] << 10) | (revLookup[b64.charCodeAt(i + 1)] << 4) | (revLookup[b64.charCodeAt(i + 2)] >> 2)
+    arr[L++] = (tmp >> 8) & 0xFF
+    arr[L++] = tmp & 0xFF
+  }
+
+  return arr
+}
+
+function tripletToBase64 (num) {
+  return lookup[num >> 18 & 0x3F] + lookup[num >> 12 & 0x3F] + lookup[num >> 6 & 0x3F] + lookup[num & 0x3F]
+}
+
+function encodeChunk (uint8, start, end) {
+  var tmp
+  var output = []
+  for (var i = start; i < end; i += 3) {
+    tmp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2])
+    output.push(tripletToBase64(tmp))
+  }
+  return output.join('')
+}
+
+function fromByteArray (uint8) {
+  var tmp
+  var len = uint8.length
+  var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes
+  var output = ''
+  var parts = []
+  var maxChunkLength = 16383 // must be multiple of 3
+
+  // go through the array every three bytes, we'll deal with trailing stuff later
+  for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
+    parts.push(encodeChunk(uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)))
+  }
+
+  // pad the end with zeros, but make sure to not forget the extra bytes
+  if (extraBytes === 1) {
+    tmp = uint8[len - 1]
+    output += lookup[tmp >> 2]
+    output += lookup[(tmp << 4) & 0x3F]
+    output += '=='
+  } else if (extraBytes === 2) {
+    tmp = (uint8[len - 2] << 8) + (uint8[len - 1])
+    output += lookup[tmp >> 10]
+    output += lookup[(tmp >> 4) & 0x3F]
+    output += lookup[(tmp << 2) & 0x3F]
+    output += '='
+  }
+
+  parts.push(output)
+
+  return parts.join('')
+}
+
+},{}],3:[function(require,module,exports){
+var bigInt = (function (undefined) {
+    "use strict";
+
+    var BASE = 1e7,
+        LOG_BASE = 7,
+        MAX_INT = 9007199254740992,
+        MAX_INT_ARR = smallToArray(MAX_INT),
+        LOG_MAX_INT = Math.log(MAX_INT);
+
+    function Integer(v, radix) {
+        if (typeof v === "undefined") return Integer[0];
+        if (typeof radix !== "undefined") return +radix === 10 ? parseValue(v) : parseBase(v, radix);
+        return parseValue(v);
+    }
+
+    function BigInteger(value, sign) {
+        this.value = value;
+        this.sign = sign;
+        this.isSmall = false;
+    }
+    BigInteger.prototype = Object.create(Integer.prototype);
+
+    function SmallInteger(value) {
+        this.value = value;
+        this.sign = value < 0;
+        this.isSmall = true;
+    }
+    SmallInteger.prototype = Object.create(Integer.prototype);
+
+    function isPrecise(n) {
+        return -MAX_INT < n && n < MAX_INT;
+    }
+
+    function smallToArray(n) { // For performance reasons doesn't reference BASE, need to change this function if BASE changes
+        if (n < 1e7)
+            return [n];
+        if (n < 1e14)
+            return [n % 1e7, Math.floor(n / 1e7)];
+        return [n % 1e7, Math.floor(n / 1e7) % 1e7, Math.floor(n / 1e14)];
+    }
+
+    function arrayToSmall(arr) { // If BASE changes this function may need to change
+        trim(arr);
+        var length = arr.length;
+        if (length < 4 && compareAbs(arr, MAX_INT_ARR) < 0) {
+            switch (length) {
+                case 0: return 0;
+                case 1: return arr[0];
+                case 2: return arr[0] + arr[1] * BASE;
+                default: return arr[0] + (arr[1] + arr[2] * BASE) * BASE;
+            }
+        }
+        return arr;
+    }
+
+    function trim(v) {
+        var i = v.length;
+        while (v[--i] === 0);
+        v.length = i + 1;
+    }
+
+    function createArray(length) { // function shamelessly stolen from Yaffle's library https://github.com/Yaffle/BigInteger
+        var x = new Array(length);
+        var i = -1;
+        while (++i < length) {
+            x[i] = 0;
+        }
+        return x;
+    }
+
+    function truncate(n) {
+        if (n > 0) return Math.floor(n);
+        return Math.ceil(n);
+    }
+
+    function add(a, b) { // assumes a and b are arrays with a.length >= b.length
+        var l_a = a.length,
+            l_b = b.length,
+            r = new Array(l_a),
+            carry = 0,
+            base = BASE,
+            sum, i;
+        for (i = 0; i < l_b; i++) {
+            sum = a[i] + b[i] + carry;
+            carry = sum >= base ? 1 : 0;
+            r[i] = sum - carry * base;
+        }
+        while (i < l_a) {
+            sum = a[i] + carry;
+            carry = sum === base ? 1 : 0;
+            r[i++] = sum - carry * base;
+        }
+        if (carry > 0) r.push(carry);
+        return r;
+    }
+
+    function addAny(a, b) {
+        if (a.length >= b.length) return add(a, b);
+        return add(b, a);
+    }
+
+    function addSmall(a, carry) { // assumes a is array, carry is number with 0 <= carry < MAX_INT
+        var l = a.length,
+            r = new Array(l),
+            base = BASE,
+            sum, i;
+        for (i = 0; i < l; i++) {
+            sum = a[i] - base + carry;
+            carry = Math.floor(sum / base);
+            r[i] = sum - carry * base;
+            carry += 1;
+        }
+        while (carry > 0) {
+            r[i++] = carry % base;
+            carry = Math.floor(carry / base);
+        }
+        return r;
+    }
+
+    BigInteger.prototype.add = function (v) {
+        var n = parseValue(v);
+        if (this.sign !== n.sign) {
+            return this.subtract(n.negate());
+        }
+        var a = this.value, b = n.value;
+        if (n.isSmall) {
+            return new BigInteger(addSmall(a, Math.abs(b)), this.sign);
+        }
+        return new BigInteger(addAny(a, b), this.sign);
+    };
+    BigInteger.prototype.plus = BigInteger.prototype.add;
+
+    SmallInteger.prototype.add = function (v) {
+        var n = parseValue(v);
+        var a = this.value;
+        if (a < 0 !== n.sign) {
+            return this.subtract(n.negate());
+        }
+        var b = n.value;
+        if (n.isSmall) {
+            if (isPrecise(a + b)) return new SmallInteger(a + b);
+            b = smallToArray(Math.abs(b));
+        }
+        return new BigInteger(addSmall(b, Math.abs(a)), a < 0);
+    };
+    SmallInteger.prototype.plus = SmallInteger.prototype.add;
+
+    function subtract(a, b) { // assumes a and b are arrays with a >= b
+        var a_l = a.length,
+            b_l = b.length,
+            r = new Array(a_l),
+            borrow = 0,
+            base = BASE,
+            i, difference;
+        for (i = 0; i < b_l; i++) {
+            difference = a[i] - borrow - b[i];
+            if (difference < 0) {
+                difference += base;
+                borrow = 1;
+            } else borrow = 0;
+            r[i] = difference;
+        }
+        for (i = b_l; i < a_l; i++) {
+            difference = a[i] - borrow;
+            if (difference < 0) difference += base;
+            else {
+                r[i++] = difference;
+                break;
+            }
+            r[i] = difference;
+        }
+        for (; i < a_l; i++) {
+            r[i] = a[i];
+        }
+        trim(r);
+        return r;
+    }
+
+    function subtractAny(a, b, sign) {
+        var value;
+        if (compareAbs(a, b) >= 0) {
+            value = subtract(a,b);
+        } else {
+            value = subtract(b, a);
+            sign = !sign;
+        }
+        value = arrayToSmall(value);
+        if (typeof value === "number") {
+            if (sign) value = -value;
+            return new SmallInteger(value);
+        }
+        return new BigInteger(value, sign);
+    }
+
+    function subtractSmall(a, b, sign) { // assumes a is array, b is number with 0 <= b < MAX_INT
+        var l = a.length,
+            r = new Array(l),
+            carry = -b,
+            base = BASE,
+            i, difference;
+        for (i = 0; i < l; i++) {
+            difference = a[i] + carry;
+            carry = Math.floor(difference / base);
+            difference %= base;
+            r[i] = difference < 0 ? difference + base : difference;
+        }
+        r = arrayToSmall(r);
+        if (typeof r === "number") {
+            if (sign) r = -r;
+            return new SmallInteger(r);
+        } return new BigInteger(r, sign);
+    }
+
+    BigInteger.prototype.subtract = function (v) {
+        var n = parseValue(v);
+        if (this.sign !== n.sign) {
+            return this.add(n.negate());
+        }
+        var a = this.value, b = n.value;
+        if (n.isSmall)
+            return subtractSmall(a, Math.abs(b), this.sign);
+        return subtractAny(a, b, this.sign);
+    };
+    BigInteger.prototype.minus = BigInteger.prototype.subtract;
+
+    SmallInteger.prototype.subtract = function (v) {
+        var n = parseValue(v);
+        var a = this.value;
+        if (a < 0 !== n.sign) {
+            return this.add(n.negate());
+        }
+        var b = n.value;
+        if (n.isSmall) {
+            return new SmallInteger(a - b);
+        }
+        return subtractSmall(b, Math.abs(a), a >= 0);
+    };
+    SmallInteger.prototype.minus = SmallInteger.prototype.subtract;
+
+    BigInteger.prototype.negate = function () {
+        return new BigInteger(this.value, !this.sign);
+    };
+    SmallInteger.prototype.negate = function () {
+        var sign = this.sign;
+        var small = new SmallInteger(-this.value);
+        small.sign = !sign;
+        return small;
+    };
+
+    BigInteger.prototype.abs = function () {
+        return new BigInteger(this.value, false);
+    };
+    SmallInteger.prototype.abs = function () {
+        return new SmallInteger(Math.abs(this.value));
+    };
+
+    function multiplyLong(a, b) {
+        var a_l = a.length,
+            b_l = b.length,
+            l = a_l + b_l,
+            r = createArray(l),
+            base = BASE,
+            product, carry, i, a_i, b_j;
+        for (i = 0; i < a_l; ++i) {
+            a_i = a[i];
+            for (var j = 0; j < b_l; ++j) {
+                b_j = b[j];
+                product = a_i * b_j + r[i + j];
+                carry = Math.floor(product / base);
+                r[i + j] = product - carry * base;
+                r[i + j + 1] += carry;
+            }
+        }
+        trim(r);
+        return r;
+    }
+
+    function multiplySmall(a, b) { // assumes a is array, b is number with |b| < BASE
+        var l = a.length,
+            r = new Array(l),
+            base = BASE,
+            carry = 0,
+            product, i;
+        for (i = 0; i < l; i++) {
+            product = a[i] * b + carry;
+            carry = Math.floor(product / base);
+            r[i] = product - carry * base;
+        }
+        while (carry > 0) {
+            r[i++] = carry % base;
+            carry = Math.floor(carry / base);
+        }
+        return r;
+    }
+
+    function shiftLeft(x, n) {
+        var r = [];
+        while (n-- > 0) r.push(0);
+        return r.concat(x);
+    }
+
+    function multiplyKaratsuba(x, y) {
+        var n = Math.max(x.length, y.length);
+
+        if (n <= 30) return multiplyLong(x, y);
+        n = Math.ceil(n / 2);
+
+        var b = x.slice(n),
+            a = x.slice(0, n),
+            d = y.slice(n),
+            c = y.slice(0, n);
+
+        var ac = multiplyKaratsuba(a, c),
+            bd = multiplyKaratsuba(b, d),
+            abcd = multiplyKaratsuba(addAny(a, b), addAny(c, d));
+
+        var product = addAny(addAny(ac, shiftLeft(subtract(subtract(abcd, ac), bd), n)), shiftLeft(bd, 2 * n));
+        trim(product);
+        return product;
+    }
+
+    // The following function is derived from a surface fit of a graph plotting the performance difference
+    // between long multiplication and karatsuba multiplication versus the lengths of the two arrays.
+    function useKaratsuba(l1, l2) {
+        return -0.012 * l1 - 0.012 * l2 + 0.000015 * l1 * l2 > 0;
+    }
+
+    BigInteger.prototype.multiply = function (v) {
+        var n = parseValue(v),
+            a = this.value, b = n.value,
+            sign = this.sign !== n.sign,
+            abs;
+        if (n.isSmall) {
+            if (b === 0) return Integer[0];
+            if (b === 1) return this;
+            if (b === -1) return this.negate();
+            abs = Math.abs(b);
+            if (abs < BASE) {
+                return new BigInteger(multiplySmall(a, abs), sign);
+            }
+            b = smallToArray(abs);
+        }
+        if (useKaratsuba(a.length, b.length)) // Karatsuba is only faster for certain array sizes
+            return new BigInteger(multiplyKaratsuba(a, b), sign);
+        return new BigInteger(multiplyLong(a, b), sign);
+    };
+
+    BigInteger.prototype.times = BigInteger.prototype.multiply;
+
+    function multiplySmallAndArray(a, b, sign) { // a >= 0
+        if (a < BASE) {
+            return new BigInteger(multiplySmall(b, a), sign);
+        }
+        return new BigInteger(multiplyLong(b, smallToArray(a)), sign);
+    }
+    SmallInteger.prototype._multiplyBySmall = function (a) {
+            if (isPrecise(a.value * this.value)) {
+                return new SmallInteger(a.value * this.value);
+            }
+            return multiplySmallAndArray(Math.abs(a.value), smallToArray(Math.abs(this.value)), this.sign !== a.sign);
+    };
+    BigInteger.prototype._multiplyBySmall = function (a) {
+            if (a.value === 0) return Integer[0];
+            if (a.value === 1) return this;
+            if (a.value === -1) return this.negate();
+            return multiplySmallAndArray(Math.abs(a.value), this.value, this.sign !== a.sign);
+    };
+    SmallInteger.prototype.multiply = function (v) {
+        return parseValue(v)._multiplyBySmall(this);
+    };
+    SmallInteger.prototype.times = SmallInteger.prototype.multiply;
+
+    function square(a) {
+        var l = a.length,
+            r = createArray(l + l),
+            base = BASE,
+            product, carry, i, a_i, a_j;
+        for (i = 0; i < l; i++) {
+            a_i = a[i];
+            for (var j = 0; j < l; j++) {
+                a_j = a[j];
+                product = a_i * a_j + r[i + j];
+                carry = Math.floor(product / base);
+                r[i + j] = product - carry * base;
+                r[i + j + 1] += carry;
+            }
+        }
+        trim(r);
+        return r;
+    }
+
+    BigInteger.prototype.square = function () {
+        return new BigInteger(square(this.value), false);
+    };
+
+    SmallInteger.prototype.square = function () {
+        var value = this.value * this.value;
+        if (isPrecise(value)) return new SmallInteger(value);
+        return new BigInteger(square(smallToArray(Math.abs(this.value))), false);
+    };
+
+    function divMod1(a, b) { // Left over from previous version. Performs faster than divMod2 on smaller input sizes.
+        var a_l = a.length,
+            b_l = b.length,
+            base = BASE,
+            result = createArray(b.length),
+            divisorMostSignificantDigit = b[b_l - 1],
+            // normalization
+            lambda = Math.ceil(base / (2 * divisorMostSignificantDigit)),
+            remainder = multiplySmall(a, lambda),
+            divisor = multiplySmall(b, lambda),
+            quotientDigit, shift, carry, borrow, i, l, q;
+        if (remainder.length <= a_l) remainder.push(0);
+        divisor.push(0);
+        divisorMostSignificantDigit = divisor[b_l - 1];
+        for (shift = a_l - b_l; shift >= 0; shift--) {
+            quotientDigit = base - 1;
+            if (remainder[shift + b_l] !== divisorMostSignificantDigit) {
+              quotientDigit = Math.floor((remainder[shift + b_l] * base + remainder[shift + b_l - 1]) / divisorMostSignificantDigit);
+            }
+            // quotientDigit <= base - 1
+            carry = 0;
+            borrow = 0;
+            l = divisor.length;
+            for (i = 0; i < l; i++) {
+                carry += quotientDigit * divisor[i];
+                q = Math.floor(carry / base);
+                borrow += remainder[shift + i] - (carry - q * base);
+                carry = q;
+                if (borrow < 0) {
+                    remainder[shift + i] = borrow + base;
+                    borrow = -1;
+                } else {
+                    remainder[shift + i] = borrow;
+                    borrow = 0;
+                }
+            }
+            while (borrow !== 0) {
+                quotientDigit -= 1;
+                carry = 0;
+                for (i = 0; i < l; i++) {
+                    carry += remainder[shift + i] - base + divisor[i];
+                    if (carry < 0) {
+                        remainder[shift + i] = carry + base;
+                        carry = 0;
+                    } else {
+                        remainder[shift + i] = carry;
+                        carry = 1;
+                    }
+                }
+                borrow += carry;
+            }
+            result[shift] = quotientDigit;
+        }
+        // denormalization
+        remainder = divModSmall(remainder, lambda)[0];
+        return [arrayToSmall(result), arrayToSmall(remainder)];
+    }
+
+    function divMod2(a, b) { // Implementation idea shamelessly stolen from Silent Matt's library http://silentmatt.com/biginteger/
+        // Performs faster than divMod1 on larger input sizes.
+        var a_l = a.length,
+            b_l = b.length,
+            result = [],
+            part = [],
+            base = BASE,
+            guess, xlen, highx, highy, check;
+        while (a_l) {
+            part.unshift(a[--a_l]);
+            trim(part);
+            if (compareAbs(part, b) < 0) {
+                result.push(0);
+                continue;
+            }
+            xlen = part.length;
+            highx = part[xlen - 1] * base + part[xlen - 2];
+            highy = b[b_l - 1] * base + b[b_l - 2];
+            if (xlen > b_l) {
+                highx = (highx + 1) * base;
+            }
+            guess = Math.ceil(highx / highy);
+            do {
+                check = multiplySmall(b, guess);
+                if (compareAbs(check, part) <= 0) break;
+                guess--;
+            } while (guess);
+            result.push(guess);
+            part = subtract(part, check);
+        }
+        result.reverse();
+        return [arrayToSmall(result), arrayToSmall(part)];
+    }
+
+    function divModSmall(value, lambda) {
+        var length = value.length,
+            quotient = createArray(length),
+            base = BASE,
+            i, q, remainder, divisor;
+        remainder = 0;
+        for (i = length - 1; i >= 0; --i) {
+            divisor = remainder * base + value[i];
+            q = truncate(divisor / lambda);
+            remainder = divisor - q * lambda;
+            quotient[i] = q | 0;
+        }
+        return [quotient, remainder | 0];
+    }
+
+    function divModAny(self, v) {
+        var value, n = parseValue(v);
+        var a = self.value, b = n.value;
+        var quotient;
+        if (b === 0) throw new Error("Cannot divide by zero");
+        if (self.isSmall) {
+            if (n.isSmall) {
+                return [new SmallInteger(truncate(a / b)), new SmallInteger(a % b)];
+            }
+            return [Integer[0], self];
+        }
+        if (n.isSmall) {
+            if (b === 1) return [self, Integer[0]];
+            if (b == -1) return [self.negate(), Integer[0]];
+            var abs = Math.abs(b);
+            if (abs < BASE) {
+                value = divModSmall(a, abs);
+                quotient = arrayToSmall(value[0]);
+                var remainder = value[1];
+                if (self.sign) remainder = -remainder;
+                if (typeof quotient === "number") {
+                    if (self.sign !== n.sign) quotient = -quotient;
+                    return [new SmallInteger(quotient), new SmallInteger(remainder)];
+                }
+                return [new BigInteger(quotient, self.sign !== n.sign), new SmallInteger(remainder)];
+            }
+            b = smallToArray(abs);
+        }
+        var comparison = compareAbs(a, b);
+        if (comparison === -1) return [Integer[0], self];
+        if (comparison === 0) return [Integer[self.sign === n.sign ? 1 : -1], Integer[0]];
+
+        // divMod1 is faster on smaller input sizes
+        if (a.length + b.length <= 200)
+            value = divMod1(a, b);
+        else value = divMod2(a, b);
+
+        quotient = value[0];
+        var qSign = self.sign !== n.sign,
+            mod = value[1],
+            mSign = self.sign;
+        if (typeof quotient === "number") {
+            if (qSign) quotient = -quotient;
+            quotient = new SmallInteger(quotient);
+        } else quotient = new BigInteger(quotient, qSign);
+        if (typeof mod === "number") {
+            if (mSign) mod = -mod;
+            mod = new SmallInteger(mod);
+        } else mod = new BigInteger(mod, mSign);
+        return [quotient, mod];
+    }
+
+    BigInteger.prototype.divmod = function (v) {
+        var result = divModAny(this, v);
+        return {
+            quotient: result[0],
+            remainder: result[1]
+        };
+    };
+    SmallInteger.prototype.divmod = BigInteger.prototype.divmod;
+
+    BigInteger.prototype.divide = function (v) {
+        return divModAny(this, v)[0];
+    };
+    SmallInteger.prototype.over = SmallInteger.prototype.divide = BigInteger.prototype.over = BigInteger.prototype.divide;
+
+    BigInteger.prototype.mod = function (v) {
+        return divModAny(this, v)[1];
+    };
+    SmallInteger.prototype.remainder = SmallInteger.prototype.mod = BigInteger.prototype.remainder = BigInteger.prototype.mod;
+
+    BigInteger.prototype.pow = function (v) {
+        var n = parseValue(v),
+            a = this.value,
+            b = n.value,
+            value, x, y;
+        if (b === 0) return Integer[1];
+        if (a === 0) return Integer[0];
+        if (a === 1) return Integer[1];
+        if (a === -1) return n.isEven() ? Integer[1] : Integer[-1];
+        if (n.sign) {
+            return Integer[0];
+        }
+        if (!n.isSmall) throw new Error("The exponent " + n.toString() + " is too large.");
+        if (this.isSmall) {
+            if (isPrecise(value = Math.pow(a, b)))
+                return new SmallInteger(truncate(value));
+        }
+        x = this;
+        y = Integer[1];
+        while (true) {
+            if (b & 1 === 1) {
+                y = y.times(x);
+                --b;
+            }
+            if (b === 0) break;
+            b /= 2;
+            x = x.square();
+        }
+        return y;
+    };
+    SmallInteger.prototype.pow = BigInteger.prototype.pow;
+
+    BigInteger.prototype.modPow = function (exp, mod) {
+        exp = parseValue(exp);
+        mod = parseValue(mod);
+        if (mod.isZero()) throw new Error("Cannot take modPow with modulus 0");
+        var r = Integer[1],
+            base = this.mod(mod);
+        while (exp.isPositive()) {
+            if (base.isZero()) return Integer[0];
+            if (exp.isOdd()) r = r.multiply(base).mod(mod);
+            exp = exp.divide(2);
+            base = base.square().mod(mod);
+        }
+        return r;
+    };
+    SmallInteger.prototype.modPow = BigInteger.prototype.modPow;
+
+    function compareAbs(a, b) {
+        if (a.length !== b.length) {
+            return a.length > b.length ? 1 : -1;
+        }
+        for (var i = a.length - 1; i >= 0; i--) {
+            if (a[i] !== b[i]) return a[i] > b[i] ? 1 : -1;
+        }
+        return 0;
+    }
+
+    BigInteger.prototype.compareAbs = function (v) {
+        var n = parseValue(v),
+            a = this.value,
+            b = n.value;
+        if (n.isSmall) return 1;
+        return compareAbs(a, b);
+    };
+    SmallInteger.prototype.compareAbs = function (v) {
+        var n = parseValue(v),
+            a = Math.abs(this.value),
+            b = n.value;
+        if (n.isSmall) {
+            b = Math.abs(b);
+            return a === b ? 0 : a > b ? 1 : -1;
+        }
+        return -1;
+    };
+
+    BigInteger.prototype.compare = function (v) {
+        // See discussion about comparison with Infinity:
+        // https://github.com/peterolson/BigInteger.js/issues/61
+        if (v === Infinity) {
+            return -1;
+        }
+        if (v === -Infinity) {
+            return 1;
+        }
+
+        var n = parseValue(v),
+            a = this.value,
+            b = n.value;
+        if (this.sign !== n.sign) {
+            return n.sign ? 1 : -1;
+        }
+        if (n.isSmall) {
+            return this.sign ? -1 : 1;
+        }
+        return compareAbs(a, b) * (this.sign ? -1 : 1);
+    };
+    BigInteger.prototype.compareTo = BigInteger.prototype.compare;
+
+    SmallInteger.prototype.compare = function (v) {
+        if (v === Infinity) {
+            return -1;
+        }
+        if (v === -Infinity) {
+            return 1;
+        }
+
+        var n = parseValue(v),
+            a = this.value,
+            b = n.value;
+        if (n.isSmall) {
+            return a == b ? 0 : a > b ? 1 : -1;
+        }
+        if (a < 0 !== n.sign) {
+            return a < 0 ? -1 : 1;
+        }
+        return a < 0 ? 1 : -1;
+    };
+    SmallInteger.prototype.compareTo = SmallInteger.prototype.compare;
+
+    BigInteger.prototype.equals = function (v) {
+        return this.compare(v) === 0;
+    };
+    SmallInteger.prototype.eq = SmallInteger.prototype.equals = BigInteger.prototype.eq = BigInteger.prototype.equals;
+
+    BigInteger.prototype.notEquals = function (v) {
+        return this.compare(v) !== 0;
+    };
+    SmallInteger.prototype.neq = SmallInteger.prototype.notEquals = BigInteger.prototype.neq = BigInteger.prototype.notEquals;
+
+    BigInteger.prototype.greater = function (v) {
+        return this.compare(v) > 0;
+    };
+    SmallInteger.prototype.gt = SmallInteger.prototype.greater = BigInteger.prototype.gt = BigInteger.prototype.greater;
+
+    BigInteger.prototype.lesser = function (v) {
+        return this.compare(v) < 0;
+    };
+    SmallInteger.prototype.lt = SmallInteger.prototype.lesser = BigInteger.prototype.lt = BigInteger.prototype.lesser;
+
+    BigInteger.prototype.greaterOrEquals = function (v) {
+        return this.compare(v) >= 0;
+    };
+    SmallInteger.prototype.geq = SmallInteger.prototype.greaterOrEquals = BigInteger.prototype.geq = BigInteger.prototype.greaterOrEquals;
+
+    BigInteger.prototype.lesserOrEquals = function (v) {
+        return this.compare(v) <= 0;
+    };
+    SmallInteger.prototype.leq = SmallInteger.prototype.lesserOrEquals = BigInteger.prototype.leq = BigInteger.prototype.lesserOrEquals;
+
+    BigInteger.prototype.isEven = function () {
+        return (this.value[0] & 1) === 0;
+    };
+    SmallInteger.prototype.isEven = function () {
+        return (this.value & 1) === 0;
+    };
+
+    BigInteger.prototype.isOdd = function () {
+        return (this.value[0] & 1) === 1;
+    };
+    SmallInteger.prototype.isOdd = function () {
+        return (this.value & 1) === 1;
+    };
+
+    BigInteger.prototype.isPositive = function () {
+        return !this.sign;
+    };
+    SmallInteger.prototype.isPositive = function () {
+        return this.value > 0;
+    };
+
+    BigInteger.prototype.isNegative = function () {
+        return this.sign;
+    };
+    SmallInteger.prototype.isNegative = function () {
+        return this.value < 0;
+    };
+
+    BigInteger.prototype.isUnit = function () {
+        return false;
+    };
+    SmallInteger.prototype.isUnit = function () {
+        return Math.abs(this.value) === 1;
+    };
+
+    BigInteger.prototype.isZero = function () {
+        return false;
+    };
+    SmallInteger.prototype.isZero = function () {
+        return this.value === 0;
+    };
+    BigInteger.prototype.isDivisibleBy = function (v) {
+        var n = parseValue(v);
+        var value = n.value;
+        if (value === 0) return false;
+        if (value === 1) return true;
+        if (value === 2) return this.isEven();
+        return this.mod(n).equals(Integer[0]);
+    };
+    SmallInteger.prototype.isDivisibleBy = BigInteger.prototype.isDivisibleBy;
+
+    function isBasicPrime(v) {
+        var n = v.abs();
+        if (n.isUnit()) return false;
+        if (n.equals(2) || n.equals(3) || n.equals(5)) return true;
+        if (n.isEven() || n.isDivisibleBy(3) || n.isDivisibleBy(5)) return false;
+        if (n.lesser(25)) return true;
+        // we don't know if it's prime: let the other functions figure it out
+    }
+
+    BigInteger.prototype.isPrime = function () {
+        var isPrime = isBasicPrime(this);
+        if (isPrime !== undefined) return isPrime;
+        var n = this.abs(),
+            nPrev = n.prev();
+        var a = [2, 3, 5, 7, 11, 13, 17, 19],
+            b = nPrev,
+            d, t, i, x;
+        while (b.isEven()) b = b.divide(2);
+        for (i = 0; i < a.length; i++) {
+            x = bigInt(a[i]).modPow(b, n);
+            if (x.equals(Integer[1]) || x.equals(nPrev)) continue;
+            for (t = true, d = b; t && d.lesser(nPrev) ; d = d.multiply(2)) {
+                x = x.square().mod(n);
+                if (x.equals(nPrev)) t = false;
+            }
+            if (t) return false;
+        }
+        return true;
+    };
+    SmallInteger.prototype.isPrime = BigInteger.prototype.isPrime;
+
+    BigInteger.prototype.isProbablePrime = function (iterations) {
+        var isPrime = isBasicPrime(this);
+        if (isPrime !== undefined) return isPrime;
+        var n = this.abs();
+        var t = iterations === undefined ? 5 : iterations;
+        // use the Fermat primality test
+        for (var i = 0; i < t; i++) {
+            var a = bigInt.randBetween(2, n.minus(2));
+            if (!a.modPow(n.prev(), n).isUnit()) return false; // definitely composite
+        }
+        return true; // large chance of being prime
+    };
+    SmallInteger.prototype.isProbablePrime = BigInteger.prototype.isProbablePrime;
+
+    BigInteger.prototype.modInv = function (n) {
+        var t = bigInt.zero, newT = bigInt.one, r = parseValue(n), newR = this.abs(), q, lastT, lastR;
+        while (!newR.equals(bigInt.zero)) {
+            q = r.divide(newR);
+            lastT = t;
+            lastR = r;
+            t = newT;
+            r = newR;
+            newT = lastT.subtract(q.multiply(newT));
+            newR = lastR.subtract(q.multiply(newR));
+        }
+        if (!r.equals(1)) throw new Error(this.toString() + " and " + n.toString() + " are not co-prime");
+        if (t.compare(0) === -1) {
+            t = t.add(n);
+        }
+        if (this.isNegative()) {
+            return t.negate();
+        }
+        return t;
+    };
+
+    SmallInteger.prototype.modInv = BigInteger.prototype.modInv;
+
+    BigInteger.prototype.next = function () {
+        var value = this.value;
+        if (this.sign) {
+            return subtractSmall(value, 1, this.sign);
+        }
+        return new BigInteger(addSmall(value, 1), this.sign);
+    };
+    SmallInteger.prototype.next = function () {
+        var value = this.value;
+        if (value + 1 < MAX_INT) return new SmallInteger(value + 1);
+        return new BigInteger(MAX_INT_ARR, false);
+    };
+
+    BigInteger.prototype.prev = function () {
+        var value = this.value;
+        if (this.sign) {
+            return new BigInteger(addSmall(value, 1), true);
+        }
+        return subtractSmall(value, 1, this.sign);
+    };
+    SmallInteger.prototype.prev = function () {
+        var value = this.value;
+        if (value - 1 > -MAX_INT) return new SmallInteger(value - 1);
+        return new BigInteger(MAX_INT_ARR, true);
+    };
+
+    var powersOfTwo = [1];
+    while (2 * powersOfTwo[powersOfTwo.length - 1] <= BASE) powersOfTwo.push(2 * powersOfTwo[powersOfTwo.length - 1]);
+    var powers2Length = powersOfTwo.length, highestPower2 = powersOfTwo[powers2Length - 1];
+
+    function shift_isSmall(n) {
+        return ((typeof n === "number" || typeof n === "string") && +Math.abs(n) <= BASE) ||
+            (n instanceof BigInteger && n.value.length <= 1);
+    }
+
+    BigInteger.prototype.shiftLeft = function (n) {
+        if (!shift_isSmall(n)) {
+            throw new Error(String(n) + " is too large for shifting.");
+        }
+        n = +n;
+        if (n < 0) return this.shiftRight(-n);
+        var result = this;
+        while (n >= powers2Length) {
+            result = result.multiply(highestPower2);
+            n -= powers2Length - 1;
+        }
+        return result.multiply(powersOfTwo[n]);
+    };
+    SmallInteger.prototype.shiftLeft = BigInteger.prototype.shiftLeft;
+
+    BigInteger.prototype.shiftRight = function (n) {
+        var remQuo;
+        if (!shift_isSmall(n)) {
+            throw new Error(String(n) + " is too large for shifting.");
+        }
+        n = +n;
+        if (n < 0) return this.shiftLeft(-n);
+        var result = this;
+        while (n >= powers2Length) {
+            if (result.isZero()) return result;
+            remQuo = divModAny(result, highestPower2);
+            result = remQuo[1].isNegative() ? remQuo[0].prev() : remQuo[0];
+            n -= powers2Length - 1;
+        }
+        remQuo = divModAny(result, powersOfTwo[n]);
+        return remQuo[1].isNegative() ? remQuo[0].prev() : remQuo[0];
+    };
+    SmallInteger.prototype.shiftRight = BigInteger.prototype.shiftRight;
+
+    function bitwise(x, y, fn) {
+        y = parseValue(y);
+        var xSign = x.isNegative(), ySign = y.isNegative();
+        var xRem = xSign ? x.not() : x,
+            yRem = ySign ? y.not() : y;
+        var xDigit = 0, yDigit = 0;
+        var xDivMod = null, yDivMod = null;
+        var result = [];
+        while (!xRem.isZero() || !yRem.isZero()) {
+            xDivMod = divModAny(xRem, highestPower2);
+            xDigit = xDivMod[1].toJSNumber();
+            if (xSign) {
+                xDigit = highestPower2 - 1 - xDigit; // two's complement for negative numbers
+            }
+
+            yDivMod = divModAny(yRem, highestPower2);
+            yDigit = yDivMod[1].toJSNumber();
+            if (ySign) {
+                yDigit = highestPower2 - 1 - yDigit; // two's complement for negative numbers
+            }
+
+            xRem = xDivMod[0];
+            yRem = yDivMod[0];
+            result.push(fn(xDigit, yDigit));
+        }
+        var sum = fn(xSign ? 1 : 0, ySign ? 1 : 0) !== 0 ? bigInt(-1) : bigInt(0);
+        for (var i = result.length - 1; i >= 0; i -= 1) {
+            sum = sum.multiply(highestPower2).add(bigInt(result[i]));
+        }
+        return sum;
+    }
+
+    BigInteger.prototype.not = function () {
+        return this.negate().prev();
+    };
+    SmallInteger.prototype.not = BigInteger.prototype.not;
+
+    BigInteger.prototype.and = function (n) {
+        return bitwise(this, n, function (a, b) { return a & b; });
+    };
+    SmallInteger.prototype.and = BigInteger.prototype.and;
+
+    BigInteger.prototype.or = function (n) {
+        return bitwise(this, n, function (a, b) { return a | b; });
+    };
+    SmallInteger.prototype.or = BigInteger.prototype.or;
+
+    BigInteger.prototype.xor = function (n) {
+        return bitwise(this, n, function (a, b) { return a ^ b; });
+    };
+    SmallInteger.prototype.xor = BigInteger.prototype.xor;
+
+    var LOBMASK_I = 1 << 30, LOBMASK_BI = (BASE & -BASE) * (BASE & -BASE) | LOBMASK_I;
+    function roughLOB(n) { // get lowestOneBit (rough)
+        // SmallInteger: return Min(lowestOneBit(n), 1 << 30)
+        // BigInteger: return Min(lowestOneBit(n), 1 << 14) [BASE=1e7]
+        var v = n.value, x = typeof v === "number" ? v | LOBMASK_I : v[0] + v[1] * BASE | LOBMASK_BI;
+        return x & -x;
+    }
+
+    function max(a, b) {
+        a = parseValue(a);
+        b = parseValue(b);
+        return a.greater(b) ? a : b;
+    }
+    function min(a, b) {
+        a = parseValue(a);
+        b = parseValue(b);
+        return a.lesser(b) ? a : b;
+    }
+    function gcd(a, b) {
+        a = parseValue(a).abs();
+        b = parseValue(b).abs();
+        if (a.equals(b)) return a;
+        if (a.isZero()) return b;
+        if (b.isZero()) return a;
+        var c = Integer[1], d, t;
+        while (a.isEven() && b.isEven()) {
+            d = Math.min(roughLOB(a), roughLOB(b));
+            a = a.divide(d);
+            b = b.divide(d);
+            c = c.multiply(d);
+        }
+        while (a.isEven()) {
+            a = a.divide(roughLOB(a));
+        }
+        do {
+            while (b.isEven()) {
+                b = b.divide(roughLOB(b));
+            }
+            if (a.greater(b)) {
+                t = b; b = a; a = t;
+            }
+            b = b.subtract(a);
+        } while (!b.isZero());
+        return c.isUnit() ? a : a.multiply(c);
+    }
+    function lcm(a, b) {
+        a = parseValue(a).abs();
+        b = parseValue(b).abs();
+        return a.divide(gcd(a, b)).multiply(b);
+    }
+    function randBetween(a, b) {
+        a = parseValue(a);
+        b = parseValue(b);
+        var low = min(a, b), high = max(a, b);
+        var range = high.subtract(low).add(1);
+        if (range.isSmall) return low.add(Math.floor(Math.random() * range));
+        var length = range.value.length - 1;
+        var result = [], restricted = true;
+        for (var i = length; i >= 0; i--) {
+            var top = restricted ? range.value[i] : BASE;
+            var digit = truncate(Math.random() * top);
+            result.unshift(digit);
+            if (digit < top) restricted = false;
+        }
+        result = arrayToSmall(result);
+        return low.add(typeof result === "number" ? new SmallInteger(result) : new BigInteger(result, false));
+    }
+    var parseBase = function (text, base) {
+        var length = text.length;
+		var i;
+		var absBase = Math.abs(base);
+		for(var i = 0; i < length; i++) {
+			var c = text[i].toLowerCase();
+			if(c === "-") continue;
+			if(/[a-z0-9]/.test(c)) {
+			    if(/[0-9]/.test(c) && +c >= absBase) {
+					if(c === "1" && absBase === 1) continue;
+                    throw new Error(c + " is not a valid digit in base " + base + ".");
+				} else if(c.charCodeAt(0) - 87 >= absBase) {
+					throw new Error(c + " is not a valid digit in base " + base + ".");
+				}
+			}
+		}
+        if (2 <= base && base <= 36) {
+            if (length <= LOG_MAX_INT / Math.log(base)) {
+				var result = parseInt(text, base);
+				if(isNaN(result)) {
+					throw new Error(c + " is not a valid digit in base " + base + ".");
+				}
+                return new SmallInteger(parseInt(text, base));
+            }
+        }
+        base = parseValue(base);
+        var digits = [];
+        var isNegative = text[0] === "-";
+        for (i = isNegative ? 1 : 0; i < text.length; i++) {
+            var c = text[i].toLowerCase(),
+                charCode = c.charCodeAt(0);
+            if (48 <= charCode && charCode <= 57) digits.push(parseValue(c));
+            else if (97 <= charCode && charCode <= 122) digits.push(parseValue(c.charCodeAt(0) - 87));
+            else if (c === "<") {
+                var start = i;
+                do { i++; } while (text[i] !== ">");
+                digits.push(parseValue(text.slice(start + 1, i)));
+            }
+            else throw new Error(c + " is not a valid character");
+        }
+        return parseBaseFromArray(digits, base, isNegative);
+    };
+
+    function parseBaseFromArray(digits, base, isNegative) {
+        var val = Integer[0], pow = Integer[1], i;
+        for (i = digits.length - 1; i >= 0; i--) {
+            val = val.add(digits[i].times(pow));
+            pow = pow.times(base);
+        }
+        return isNegative ? val.negate() : val;
+    }
+
+    function stringify(digit) {
+        var v = digit.value;
+        if (typeof v === "number") v = [v];
+        if (v.length === 1 && v[0] <= 35) {
+            return "0123456789abcdefghijklmnopqrstuvwxyz".charAt(v[0]);
+        }
+        return "<" + v + ">";
+    }
+    function toBase(n, base) {
+        base = bigInt(base);
+        if (base.isZero()) {
+            if (n.isZero()) return "0";
+            throw new Error("Cannot convert nonzero numbers to base 0.");
+        }
+        if (base.equals(-1)) {
+            if (n.isZero()) return "0";
+            if (n.isNegative()) return new Array(1 - n).join("10");
+            return "1" + new Array(+n).join("01");
+        }
+        var minusSign = "";
+        if (n.isNegative() && base.isPositive()) {
+            minusSign = "-";
+            n = n.abs();
+        }
+        if (base.equals(1)) {
+            if (n.isZero()) return "0";
+            return minusSign + new Array(+n + 1).join(1);
+        }
+        var out = [];
+        var left = n, divmod;
+        while (left.isNegative() || left.compareAbs(base) >= 0) {
+            divmod = left.divmod(base);
+            left = divmod.quotient;
+            var digit = divmod.remainder;
+            if (digit.isNegative()) {
+                digit = base.minus(digit).abs();
+                left = left.next();
+            }
+            out.push(stringify(digit));
+        }
+        out.push(stringify(left));
+        return minusSign + out.reverse().join("");
+    }
+
+    BigInteger.prototype.toString = function (radix) {
+        if (radix === undefined) radix = 10;
+        if (radix !== 10) return toBase(this, radix);
+        var v = this.value, l = v.length, str = String(v[--l]), zeros = "0000000", digit;
+        while (--l >= 0) {
+            digit = String(v[l]);
+            str += zeros.slice(digit.length) + digit;
+        }
+        var sign = this.sign ? "-" : "";
+        return sign + str;
+    };
+
+    SmallInteger.prototype.toString = function (radix) {
+        if (radix === undefined) radix = 10;
+        if (radix != 10) return toBase(this, radix);
+        return String(this.value);
+    };
+    BigInteger.prototype.toJSON = SmallInteger.prototype.toJSON = function() { return this.toString(); }
+
+    BigInteger.prototype.valueOf = function () {
+        return +this.toString();
+    };
+    BigInteger.prototype.toJSNumber = BigInteger.prototype.valueOf;
+
+    SmallInteger.prototype.valueOf = function () {
+        return this.value;
+    };
+    SmallInteger.prototype.toJSNumber = SmallInteger.prototype.valueOf;
+
+    function parseStringValue(v) {
+            if (isPrecise(+v)) {
+                var x = +v;
+                if (x === truncate(x))
+                    return new SmallInteger(x);
+                throw "Invalid integer: " + v;
+            }
+            var sign = v[0] === "-";
+            if (sign) v = v.slice(1);
+            var split = v.split(/e/i);
+            if (split.length > 2) throw new Error("Invalid integer: " + split.join("e"));
+            if (split.length === 2) {
+                var exp = split[1];
+                if (exp[0] === "+") exp = exp.slice(1);
+                exp = +exp;
+                if (exp !== truncate(exp) || !isPrecise(exp)) throw new Error("Invalid integer: " + exp + " is not a valid exponent.");
+                var text = split[0];
+                var decimalPlace = text.indexOf(".");
+                if (decimalPlace >= 0) {
+                    exp -= text.length - decimalPlace - 1;
+                    text = text.slice(0, decimalPlace) + text.slice(decimalPlace + 1);
+                }
+                if (exp < 0) throw new Error("Cannot include negative exponent part for integers");
+                text += (new Array(exp + 1)).join("0");
+                v = text;
+            }
+            var isValid = /^([0-9][0-9]*)$/.test(v);
+            if (!isValid) throw new Error("Invalid integer: " + v);
+            var r = [], max = v.length, l = LOG_BASE, min = max - l;
+            while (max > 0) {
+                r.push(+v.slice(min, max));
+                min -= l;
+                if (min < 0) min = 0;
+                max -= l;
+            }
+            trim(r);
+            return new BigInteger(r, sign);
+    }
+
+    function parseNumberValue(v) {
+        if (isPrecise(v)) {
+            if (v !== truncate(v)) throw new Error(v + " is not an integer.");
+            return new SmallInteger(v);
+        }
+        return parseStringValue(v.toString());
+    }
+
+    function parseValue(v) {
+        if (typeof v === "number") {
+            return parseNumberValue(v);
+        }
+        if (typeof v === "string") {
+            return parseStringValue(v);
+        }
+        return v;
+    }
+    // Pre-define numbers in range [-999,999]
+    for (var i = 0; i < 1000; i++) {
+        Integer[i] = new SmallInteger(i);
+        if (i > 0) Integer[-i] = new SmallInteger(-i);
+    }
+    // Backwards compatibility
+    Integer.one = Integer[1];
+    Integer.zero = Integer[0];
+    Integer.minusOne = Integer[-1];
+    Integer.max = max;
+    Integer.min = min;
+    Integer.gcd = gcd;
+    Integer.lcm = lcm;
+    Integer.isInstance = function (x) { return x instanceof BigInteger || x instanceof SmallInteger; };
+    Integer.randBetween = randBetween;
+
+    Integer.fromArray = function (digits, base, isNegative) {
+        return parseBaseFromArray(digits.map(parseValue), parseValue(base || 10), isNegative);
+    };
+
+    return Integer;
+})();
+
+// Node.js check
+if (typeof module !== "undefined" && module.hasOwnProperty("exports")) {
+    module.exports = bigInt;
+}
+
+//amd check
+if ( typeof define === "function" && define.amd ) {
+  define( "big-integer", [], function() {
+    return bigInt;
+  });
+}
+
+},{}],4:[function(require,module,exports){
+
+},{}],5:[function(require,module,exports){
+var basex = require('base-x')
+var ALPHABET = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'
+
+module.exports = basex(ALPHABET)
+
+},{"base-x":1}],6:[function(require,module,exports){
+'use strict'
+
+var base58 = require('bs58')
+var Buffer = require('safe-buffer').Buffer
+
+module.exports = function (checksumFn) {
+  // Encode a buffer as a base58-check encoded string
+  function encode (payload) {
+    var checksum = checksumFn(payload)
+
+    return base58.encode(Buffer.concat([
+      payload,
+      checksum
+    ], payload.length + 4))
+  }
+
+  function decodeRaw (buffer) {
+    var payload = buffer.slice(0, -4)
+    var checksum = buffer.slice(-4)
+    var newChecksum = checksumFn(payload)
+
+    if (checksum[0] ^ newChecksum[0] |
+        checksum[1] ^ newChecksum[1] |
+        checksum[2] ^ newChecksum[2] |
+        checksum[3] ^ newChecksum[3]) return
+
+    return payload
+  }
+
+  // Decode a base58-check encoded string to a buffer, no result if checksum is wrong
+  function decodeUnsafe (string) {
+    var buffer = base58.decodeUnsafe(string)
+    if (!buffer) return
+
+    return decodeRaw(buffer)
+  }
+
+  function decode (string) {
+    var buffer = base58.decode(string)
+    var payload = decodeRaw(buffer, checksumFn)
+    if (!payload) throw new Error('Invalid checksum')
+    return payload
+  }
+
+  return {
+    encode: encode,
+    decode: decode,
+    decodeUnsafe: decodeUnsafe
+  }
+}
+
+},{"bs58":5,"safe-buffer":40}],7:[function(require,module,exports){
+'use strict'
+
+var createHash = require('create-hash')
+var bs58checkBase = require('./base')
+
+// SHA256(SHA256(buffer))
+function sha256x2 (buffer) {
+  var tmp = createHash('sha256').update(buffer).digest()
+  return createHash('sha256').update(tmp).digest()
+}
+
+module.exports = bs58checkBase(sha256x2)
+
+},{"./base":6,"create-hash":15}],8:[function(require,module,exports){
+/*!
+ * The buffer module from node.js, for the browser.
+ *
+ * @author   Feross Aboukhadijeh <https://feross.org>
+ * @license  MIT
+ */
+/* eslint-disable no-proto */
+
+'use strict'
+
+var base64 = require('base64-js')
+var ieee754 = require('ieee754')
+
+exports.Buffer = Buffer
+exports.SlowBuffer = SlowBuffer
+exports.INSPECT_MAX_BYTES = 50
+
+var K_MAX_LENGTH = 0x7fffffff
+exports.kMaxLength = K_MAX_LENGTH
+
+/**
+ * If `Buffer.TYPED_ARRAY_SUPPORT`:
+ *   === true    Use Uint8Array implementation (fastest)
+ *   === false   Print warning and recommend using `buffer` v4.x which has an Object
+ *               implementation (most compatible, even IE6)
+ *
+ * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
+ * Opera 11.6+, iOS 4.2+.
+ *
+ * We report that the browser does not support typed arrays if the are not subclassable
+ * using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array`
+ * (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support
+ * for __proto__ and has a buggy typed array implementation.
+ */
+Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport()
+
+if (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== 'undefined' &&
+    typeof console.error === 'function') {
+  console.error(
+    'This browser lacks typed array (Uint8Array) support which is required by ' +
+    '`buffer` v5.x. Use `buffer` v4.x if you require old browser support.'
+  )
+}
+
+function typedArraySupport () {
+  // Can typed array instances can be augmented?
+  try {
+    var arr = new Uint8Array(1)
+    arr.__proto__ = {__proto__: Uint8Array.prototype, foo: function () { return 42 }}
+    return arr.foo() === 42
+  } catch (e) {
+    return false
+  }
+}
+
+function createBuffer (length) {
+  if (length > K_MAX_LENGTH) {
+    throw new RangeError('Invalid typed array length')
+  }
+  // Return an augmented `Uint8Array` instance
+  var buf = new Uint8Array(length)
+  buf.__proto__ = Buffer.prototype
+  return buf
+}
+
+/**
+ * The Buffer constructor returns instances of `Uint8Array` that have their
+ * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of
+ * `Uint8Array`, so the returned instances will have all the node `Buffer` methods
+ * and the `Uint8Array` methods. Square bracket notation works as expected -- it
+ * returns a single octet.
+ *
+ * The `Uint8Array` prototype remains unmodified.
+ */
+
+function Buffer (arg, encodingOrOffset, length) {
+  // Common case.
+  if (typeof arg === 'number') {
+    if (typeof encodingOrOffset === 'string') {
+      throw new Error(
+        'If encoding is specified then the first argument must be a string'
+      )
+    }
+    return allocUnsafe(arg)
+  }
+  return from(arg, encodingOrOffset, length)
+}
+
+// Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
+if (typeof Symbol !== 'undefined' && Symbol.species &&
+    Buffer[Symbol.species] === Buffer) {
+  Object.defineProperty(Buffer, Symbol.species, {
+    value: null,
+    configurable: true,
+    enumerable: false,
+    writable: false
+  })
+}
+
+Buffer.poolSize = 8192 // not used by this implementation
+
+function from (value, encodingOrOffset, length) {
+  if (typeof value === 'number') {
+    throw new TypeError('"value" argument must not be a number')
+  }
+
+  if (isArrayBuffer(value)) {
+    return fromArrayBuffer(value, encodingOrOffset, length)
+  }
+
+  if (typeof value === 'string') {
+    return fromString(value, encodingOrOffset)
+  }
+
+  return fromObject(value)
+}
+
+/**
+ * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError
+ * if value is a number.
+ * Buffer.from(str[, encoding])
+ * Buffer.from(array)
+ * Buffer.from(buffer)
+ * Buffer.from(arrayBuffer[, byteOffset[, length]])
+ **/
+Buffer.from = function (value, encodingOrOffset, length) {
+  return from(value, encodingOrOffset, length)
+}
+
+// Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug:
+// https://github.com/feross/buffer/pull/148
+Buffer.prototype.__proto__ = Uint8Array.prototype
+Buffer.__proto__ = Uint8Array
+
+function assertSize (size) {
+  if (typeof size !== 'number') {
+    throw new TypeError('"size" argument must be a number')
+  } else if (size < 0) {
+    throw new RangeError('"size" argument must not be negative')
+  }
+}
+
+function alloc (size, fill, encoding) {
+  assertSize(size)
+  if (size <= 0) {
+    return createBuffer(size)
+  }
+  if (fill !== undefined) {
+    // Only pay attention to encoding if it's a string. This
+    // prevents accidentally sending in a number that would
+    // be interpretted as a start offset.
+    return typeof encoding === 'string'
+      ? createBuffer(size).fill(fill, encoding)
+      : createBuffer(size).fill(fill)
+  }
+  return createBuffer(size)
+}
+
+/**
+ * Creates a new filled Buffer instance.
+ * alloc(size[, fill[, encoding]])
+ **/
+Buffer.alloc = function (size, fill, encoding) {
+  return alloc(size, fill, encoding)
+}
+
+function allocUnsafe (size) {
+  assertSize(size)
+  return createBuffer(size < 0 ? 0 : checked(size) | 0)
+}
+
+/**
+ * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
+ * */
+Buffer.allocUnsafe = function (size) {
+  return allocUnsafe(size)
+}
+/**
+ * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
+ */
+Buffer.allocUnsafeSlow = function (size) {
+  return allocUnsafe(size)
+}
+
+function fromString (string, encoding) {
+  if (typeof encoding !== 'string' || encoding === '') {
+    encoding = 'utf8'
+  }
+
+  if (!Buffer.isEncoding(encoding)) {
+    throw new TypeError('"encoding" must be a valid string encoding')
+  }
+
+  var length = byteLength(string, encoding) | 0
+  var buf = createBuffer(length)
+
+  var actual = buf.write(string, encoding)
+
+  if (actual !== length) {
+    // Writing a hex string, for example, that contains invalid characters will
+    // cause everything after the first invalid character to be ignored. (e.g.
+    // 'abxxcd' will be treated as 'ab')
+    buf = buf.slice(0, actual)
+  }
+
+  return buf
+}
+
+function fromArrayLike (array) {
+  var length = array.length < 0 ? 0 : checked(array.length) | 0
+  var buf = createBuffer(length)
+  for (var i = 0; i < length; i += 1) {
+    buf[i] = array[i] & 255
+  }
+  return buf
+}
+
+function fromArrayBuffer (array, byteOffset, length) {
+  if (byteOffset < 0 || array.byteLength < byteOffset) {
+    throw new RangeError('\'offset\' is out of bounds')
+  }
+
+  if (array.byteLength < byteOffset + (length || 0)) {
+    throw new RangeError('\'length\' is out of bounds')
+  }
+
+  var buf
+  if (byteOffset === undefined && length === undefined) {
+    buf = new Uint8Array(array)
+  } else if (length === undefined) {
+    buf = new Uint8Array(array, byteOffset)
+  } else {
+    buf = new Uint8Array(array, byteOffset, length)
+  }
+
+  // Return an augmented `Uint8Array` instance
+  buf.__proto__ = Buffer.prototype
+  return buf
+}
+
+function fromObject (obj) {
+  if (Buffer.isBuffer(obj)) {
+    var len = checked(obj.length) | 0
+    var buf = createBuffer(len)
+
+    if (buf.length === 0) {
+      return buf
+    }
+
+    obj.copy(buf, 0, 0, len)
+    return buf
+  }
+
+  if (obj) {
+    if (isArrayBufferView(obj) || 'length' in obj) {
+      if (typeof obj.length !== 'number' || numberIsNaN(obj.length)) {
+        return createBuffer(0)
+      }
+      return fromArrayLike(obj)
+    }
+
+    if (obj.type === 'Buffer' && Array.isArray(obj.data)) {
+      return fromArrayLike(obj.data)
+    }
+  }
+
+  throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.')
+}
+
+function checked (length) {
+  // Note: cannot use `length < K_MAX_LENGTH` here because that fails when
+  // length is NaN (which is otherwise coerced to zero.)
+  if (length >= K_MAX_LENGTH) {
+    throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
+                         'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes')
+  }
+  return length | 0
+}
+
+function SlowBuffer (length) {
+  if (+length != length) { // eslint-disable-line eqeqeq
+    length = 0
+  }
+  return Buffer.alloc(+length)
+}
+
+Buffer.isBuffer = function isBuffer (b) {
+  return b != null && b._isBuffer === true
+}
+
+Buffer.compare = function compare (a, b) {
+  if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
+    throw new TypeError('Arguments must be Buffers')
+  }
+
+  if (a === b) return 0
+
+  var x = a.length
+  var y = b.length
+
+  for (var i = 0, len = Math.min(x, y); i < len; ++i) {
+    if (a[i] !== b[i]) {
+      x = a[i]
+      y = b[i]
+      break
+    }
+  }
+
+  if (x < y) return -1
+  if (y < x) return 1
+  return 0
+}
+
+Buffer.isEncoding = function isEncoding (encoding) {
+  switch (String(encoding).toLowerCase()) {
+    case 'hex':
+    case 'utf8':
+    case 'utf-8':
+    case 'ascii':
+    case 'latin1':
+    case 'binary':
+    case 'base64':
+    case 'ucs2':
+    case 'ucs-2':
+    case 'utf16le':
+    case 'utf-16le':
+      return true
+    default:
+      return false
+  }
+}
+
+Buffer.concat = function concat (list, length) {
+  if (!Array.isArray(list)) {
+    throw new TypeError('"list" argument must be an Array of Buffers')
+  }
+
+  if (list.length === 0) {
+    return Buffer.alloc(0)
+  }
+
+  var i
+  if (length === undefined) {
+    length = 0
+    for (i = 0; i < list.length; ++i) {
+      length += list[i].length
+    }
+  }
+
+  var buffer = Buffer.allocUnsafe(length)
+  var pos = 0
+  for (i = 0; i < list.length; ++i) {
+    var buf = list[i]
+    if (!Buffer.isBuffer(buf)) {
+      throw new TypeError('"list" argument must be an Array of Buffers')
+    }
+    buf.copy(buffer, pos)
+    pos += buf.length
+  }
+  return buffer
+}
+
+function byteLength (string, encoding) {
+  if (Buffer.isBuffer(string)) {
+    return string.length
+  }
+  if (isArrayBufferView(string) || isArrayBuffer(string)) {
+    return string.byteLength
+  }
+  if (typeof string !== 'string') {
+    string = '' + string
+  }
+
+  var len = string.length
+  if (len === 0) return 0
+
+  // Use a for loop to avoid recursion
+  var loweredCase = false
+  for (;;) {
+    switch (encoding) {
+      case 'ascii':
+      case 'latin1':
+      case 'binary':
+        return len
+      case 'utf8':
+      case 'utf-8':
+      case undefined:
+        return utf8ToBytes(string).length
+      case 'ucs2':
+      case 'ucs-2':
+      case 'utf16le':
+      case 'utf-16le':
+        return len * 2
+      case 'hex':
+        return len >>> 1
+      case 'base64':
+        return base64ToBytes(string).length
+      default:
+        if (loweredCase) return utf8ToBytes(string).length // assume utf8
+        encoding = ('' + encoding).toLowerCase()
+        loweredCase = true
+    }
+  }
+}
+Buffer.byteLength = byteLength
+
+function slowToString (encoding, start, end) {
+  var loweredCase = false
+
+  // No need to verify that "this.length <= MAX_UINT32" since it's a read-only
+  // property of a typed array.
+
+  // This behaves neither like String nor Uint8Array in that we set start/end
+  // to their upper/lower bounds if the value passed is out of range.
+  // undefined is handled specially as per ECMA-262 6th Edition,
+  // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.
+  if (start === undefined || start < 0) {
+    start = 0
+  }
+  // Return early if start > this.length. Done here to prevent potential uint32
+  // coercion fail below.
+  if (start > this.length) {
+    return ''
+  }
+
+  if (end === undefined || end > this.length) {
+    end = this.length
+  }
+
+  if (end <= 0) {
+    return ''
+  }
+
+  // Force coersion to uint32. This will also coerce falsey/NaN values to 0.
+  end >>>= 0
+  start >>>= 0
+
+  if (end <= start) {
+    return ''
+  }
+
+  if (!encoding) encoding = 'utf8'
+
+  while (true) {
+    switch (encoding) {
+      case 'hex':
+        return hexSlice(this, start, end)
+
+      case 'utf8':
+      case 'utf-8':
+        return utf8Slice(this, start, end)
+
+      case 'ascii':
+        return asciiSlice(this, start, end)
+
+      case 'latin1':
+      case 'binary':
+        return latin1Slice(this, start, end)
+
+      case 'base64':
+        return base64Slice(this, start, end)
+
+      case 'ucs2':
+      case 'ucs-2':
+      case 'utf16le':
+      case 'utf-16le':
+        return utf16leSlice(this, start, end)
+
+      default:
+        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
+        encoding = (encoding + '').toLowerCase()
+        loweredCase = true
+    }
+  }
+}
+
+// This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package)
+// to detect a Buffer instance. It's not possible to use `instanceof Buffer`
+// reliably in a browserify context because there could be multiple different
+// copies of the 'buffer' package in use. This method works even for Buffer
+// instances that were created from another copy of the `buffer` package.
+// See: https://github.com/feross/buffer/issues/154
+Buffer.prototype._isBuffer = true
+
+function swap (b, n, m) {
+  var i = b[n]
+  b[n] = b[m]
+  b[m] = i
+}
+
+Buffer.prototype.swap16 = function swap16 () {
+  var len = this.length
+  if (len % 2 !== 0) {
+    throw new RangeError('Buffer size must be a multiple of 16-bits')
+  }
+  for (var i = 0; i < len; i += 2) {
+    swap(this, i, i + 1)
+  }
+  return this
+}
+
+Buffer.prototype.swap32 = function swap32 () {
+  var len = this.length
+  if (len % 4 !== 0) {
+    throw new RangeError('Buffer size must be a multiple of 32-bits')
+  }
+  for (var i = 0; i < len; i += 4) {
+    swap(this, i, i + 3)
+    swap(this, i + 1, i + 2)
+  }
+  return this
+}
+
+Buffer.prototype.swap64 = function swap64 () {
+  var len = this.length
+  if (len % 8 !== 0) {
+    throw new RangeError('Buffer size must be a multiple of 64-bits')
+  }
+  for (var i = 0; i < len; i += 8) {
+    swap(this, i, i + 7)
+    swap(this, i + 1, i + 6)
+    swap(this, i + 2, i + 5)
+    swap(this, i + 3, i + 4)
+  }
+  return this
+}
+
+Buffer.prototype.toString = function toString () {
+  var length = this.length
+  if (length === 0) return ''
+  if (arguments.length === 0) return utf8Slice(this, 0, length)
+  return slowToString.apply(this, arguments)
+}
+
+Buffer.prototype.equals = function equals (b) {
+  if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
+  if (this === b) return true
+  return Buffer.compare(this, b) === 0
+}
+
+Buffer.prototype.inspect = function inspect () {
+  var str = ''
+  var max = exports.INSPECT_MAX_BYTES
+  if (this.length > 0) {
+    str = this.toString('hex', 0, max).match(/.{2}/g).join(' ')
+    if (this.length > max) str += ' ... '
+  }
+  return '<Buffer ' + str + '>'
+}
+
+Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
+  if (!Buffer.isBuffer(target)) {
+    throw new TypeError('Argument must be a Buffer')
+  }
+
+  if (start === undefined) {
+    start = 0
+  }
+  if (end === undefined) {
+    end = target ? target.length : 0
+  }
+  if (thisStart === undefined) {
+    thisStart = 0
+  }
+  if (thisEnd === undefined) {
+    thisEnd = this.length
+  }
+
+  if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
+    throw new RangeError('out of range index')
+  }
+
+  if (thisStart >= thisEnd && start >= end) {
+    return 0
+  }
+  if (thisStart >= thisEnd) {
+    return -1
+  }
+  if (start >= end) {
+    return 1
+  }
+
+  start >>>= 0
+  end >>>= 0
+  thisStart >>>= 0
+  thisEnd >>>= 0
+
+  if (this === target) return 0
+
+  var x = thisEnd - thisStart
+  var y = end - start
+  var len = Math.min(x, y)
+
+  var thisCopy = this.slice(thisStart, thisEnd)
+  var targetCopy = target.slice(start, end)
+
+  for (var i = 0; i < len; ++i) {
+    if (thisCopy[i] !== targetCopy[i]) {
+      x = thisCopy[i]
+      y = targetCopy[i]
+      break
+    }
+  }
+
+  if (x < y) return -1
+  if (y < x) return 1
+  return 0
+}
+
+// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,
+// OR the last index of `val` in `buffer` at offset <= `byteOffset`.
+//
+// Arguments:
+// - buffer - a Buffer to search
+// - val - a string, Buffer, or number
+// - byteOffset - an index into `buffer`; will be clamped to an int32
+// - encoding - an optional encoding, relevant is val is a string
+// - dir - true for indexOf, false for lastIndexOf
+function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {
+  // Empty buffer means no match
+  if (buffer.length === 0) return -1
+
+  // Normalize byteOffset
+  if (typeof byteOffset === 'string') {
+    encoding = byteOffset
+    byteOffset = 0
+  } else if (byteOffset > 0x7fffffff) {
+    byteOffset = 0x7fffffff
+  } else if (byteOffset < -0x80000000) {
+    byteOffset = -0x80000000
+  }
+  byteOffset = +byteOffset  // Coerce to Number.
+  if (numberIsNaN(byteOffset)) {
+    // byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer
+    byteOffset = dir ? 0 : (buffer.length - 1)
+  }
+
+  // Normalize byteOffset: negative offsets start from the end of the buffer
+  if (byteOffset < 0) byteOffset = buffer.length + byteOffset
+  if (byteOffset >= buffer.length) {
+    if (dir) return -1
+    else byteOffset = buffer.length - 1
+  } else if (byteOffset < 0) {
+    if (dir) byteOffset = 0
+    else return -1
+  }
+
+  // Normalize val
+  if (typeof val === 'string') {
+    val = Buffer.from(val, encoding)
+  }
+
+  // Finally, search either indexOf (if dir is true) or lastIndexOf
+  if (Buffer.isBuffer(val)) {
+    // Special case: looking for empty string/buffer always fails
+    if (val.length === 0) {
+      return -1
+    }
+    return arrayIndexOf(buffer, val, byteOffset, encoding, dir)
+  } else if (typeof val === 'number') {
+    val = val & 0xFF // Search for a byte value [0-255]
+    if (typeof Uint8Array.prototype.indexOf === 'function') {
+      if (dir) {
+        return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)
+      } else {
+        return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)
+      }
+    }
+    return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir)
+  }
+
+  throw new TypeError('val must be string, number or Buffer')
+}
+
+function arrayIndexOf (arr, val, byteOffset, encoding, dir) {
+  var indexSize = 1
+  var arrLength = arr.length
+  var valLength = val.length
+
+  if (encoding !== undefined) {
+    encoding = String(encoding).toLowerCase()
+    if (encoding === 'ucs2' || encoding === 'ucs-2' ||
+        encoding === 'utf16le' || encoding === 'utf-16le') {
+      if (arr.length < 2 || val.length < 2) {
+        return -1
+      }
+      indexSize = 2
+      arrLength /= 2
+      valLength /= 2
+      byteOffset /= 2
+    }
+  }
+
+  function read (buf, i) {
+    if (indexSize === 1) {
+      return buf[i]
+    } else {
+      return buf.readUInt16BE(i * indexSize)
+    }
+  }
+
+  var i
+  if (dir) {
+    var foundIndex = -1
+    for (i = byteOffset; i < arrLength; i++) {
+      if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {
+        if (foundIndex === -1) foundIndex = i
+        if (i - foundIndex + 1 === valLength) return foundIndex * indexSize
+      } else {
+        if (foundIndex !== -1) i -= i - foundIndex
+        foundIndex = -1
+      }
+    }
+  } else {
+    if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength
+    for (i = byteOffset; i >= 0; i--) {
+      var found = true
+      for (var j = 0; j < valLength; j++) {
+        if (read(arr, i + j) !== read(val, j)) {
+          found = false
+          break
+        }
+      }
+      if (found) return i
+    }
+  }
+
+  return -1
+}
+
+Buffer.prototype.includes = function includes (val, byteOffset, encoding) {
+  return this.indexOf(val, byteOffset, encoding) !== -1
+}
+
+Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {
+  return bidirectionalIndexOf(this, val, byteOffset, encoding, true)
+}
+
+Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {
+  return bidirectionalIndexOf(this, val, byteOffset, encoding, false)
+}
+
+function hexWrite (buf, string, offset, length) {
+  offset = Number(offset) || 0
+  var remaining = buf.length - offset
+  if (!length) {
+    length = remaining
+  } else {
+    length = Number(length)
+    if (length > remaining) {
+      length = remaining
+    }
+  }
+
+  // must be an even number of digits
+  var strLen = string.length
+  if (strLen % 2 !== 0) throw new TypeError('Invalid hex string')
+
+  if (length > strLen / 2) {
+    length = strLen / 2
+  }
+  for (var i = 0; i < length; ++i) {
+    var parsed = parseInt(string.substr(i * 2, 2), 16)
+    if (numberIsNaN(parsed)) return i
+    buf[offset + i] = parsed
+  }
+  return i
+}
+
+function utf8Write (buf, string, offset, length) {
+  return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
+}
+
+function asciiWrite (buf, string, offset, length) {
+  return blitBuffer(asciiToBytes(string), buf, offset, length)
+}
+
+function latin1Write (buf, string, offset, length) {
+  return asciiWrite(buf, string, offset, length)
+}
+
+function base64Write (buf, string, offset, length) {
+  return blitBuffer(base64ToBytes(string), buf, offset, length)
+}
+
+function ucs2Write (buf, string, offset, length) {
+  return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
+}
+
+Buffer.prototype.write = function write (string, offset, length, encoding) {
+  // Buffer#write(string)
+  if (offset === undefined) {
+    encoding = 'utf8'
+    length = this.length
+    offset = 0
+  // Buffer#write(string, encoding)
+  } else if (length === undefined && typeof offset === 'string') {
+    encoding = offset
+    length = this.length
+    offset = 0
+  // Buffer#write(string, offset[, length][, encoding])
+  } else if (isFinite(offset)) {
+    offset = offset >>> 0
+    if (isFinite(length)) {
+      length = length >>> 0
+      if (encoding === undefined) encoding = 'utf8'
+    } else {
+      encoding = length
+      length = undefined
+    }
+  } else {
+    throw new Error(
+      'Buffer.write(string, encoding, offset[, length]) is no longer supported'
+    )
+  }
+
+  var remaining = this.length - offset
+  if (length === undefined || length > remaining) length = remaining
+
+  if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
+    throw new RangeError('Attempt to write outside buffer bounds')
+  }
+
+  if (!encoding) encoding = 'utf8'
+
+  var loweredCase = false
+  for (;;) {
+    switch (encoding) {
+      case 'hex':
+        return hexWrite(this, string, offset, length)
+
+      case 'utf8':
+      case 'utf-8':
+        return utf8Write(this, string, offset, length)
+
+      case 'ascii':
+        return asciiWrite(this, string, offset, length)
+
+      case 'latin1':
+      case 'binary':
+        return latin1Write(this, string, offset, length)
+
+      case 'base64':
+        // Warning: maxLength not taken into account in base64Write
+        return base64Write(this, string, offset, length)
+
+      case 'ucs2':
+      case 'ucs-2':
+      case 'utf16le':
+      case 'utf-16le':
+        return ucs2Write(this, string, offset, length)
+
+      default:
+        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
+        encoding = ('' + encoding).toLowerCase()
+        loweredCase = true
+    }
+  }
+}
+
+Buffer.prototype.toJSON = function toJSON () {
+  return {
+    type: 'Buffer',
+    data: Array.prototype.slice.call(this._arr || this, 0)
+  }
+}
+
+function base64Slice (buf, start, end) {
+  if (start === 0 && end === buf.length) {
+    return base64.fromByteArray(buf)
+  } else {
+    return base64.fromByteArray(buf.slice(start, end))
+  }
+}
+
+function utf8Slice (buf, start, end) {
+  end = Math.min(buf.length, end)
+  var res = []
+
+  var i = start
+  while (i < end) {
+    var firstByte = buf[i]
+    var codePoint = null
+    var bytesPerSequence = (firstByte > 0xEF) ? 4
+      : (firstByte > 0xDF) ? 3
+      : (firstByte > 0xBF) ? 2
+      : 1
+
+    if (i + bytesPerSequence <= end) {
+      var secondByte, thirdByte, fourthByte, tempCodePoint
+
+      switch (bytesPerSequence) {
+        case 1:
+          if (firstByte < 0x80) {
+            codePoint = firstByte
+          }
+          break
+        case 2:
+          secondByte = buf[i + 1]
+          if ((secondByte & 0xC0) === 0x80) {
+            tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)
+            if (tempCodePoint > 0x7F) {
+              codePoint = tempCodePoint
+            }
+          }
+          break
+        case 3:
+          secondByte = buf[i + 1]
+          thirdByte = buf[i + 2]
+          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {
+            tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)
+            if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {
+              codePoint = tempCodePoint
+            }
+          }
+          break
+        case 4:
+          secondByte = buf[i + 1]
+          thirdByte = buf[i + 2]
+          fourthByte = buf[i + 3]
+          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {
+            tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)
+            if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {
+              codePoint = tempCodePoint
+            }
+          }
+      }
+    }
+
+    if (codePoint === null) {
+      // we did not generate a valid codePoint so insert a
+      // replacement char (U+FFFD) and advance only 1 byte
+      codePoint = 0xFFFD
+      bytesPerSequence = 1
+    } else if (codePoint > 0xFFFF) {
+      // encode to utf16 (surrogate pair dance)
+      codePoint -= 0x10000
+      res.push(codePoint >>> 10 & 0x3FF | 0xD800)
+      codePoint = 0xDC00 | codePoint & 0x3FF
+    }
+
+    res.push(codePoint)
+    i += bytesPerSequence
+  }
+
+  return decodeCodePointsArray(res)
+}
+
+// Based on http://stackoverflow.com/a/22747272/680742, the browser with
+// the lowest limit is Chrome, with 0x10000 args.
+// We go 1 magnitude less, for safety
+var MAX_ARGUMENTS_LENGTH = 0x1000
+
+function decodeCodePointsArray (codePoints) {
+  var len = codePoints.length
+  if (len <= MAX_ARGUMENTS_LENGTH) {
+    return String.fromCharCode.apply(String, codePoints) // avoid extra slice()
+  }
+
+  // Decode in chunks to avoid "call stack size exceeded".
+  var res = ''
+  var i = 0
+  while (i < len) {
+    res += String.fromCharCode.apply(
+      String,
+      codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)
+    )
+  }
+  return res
+}
+
+function asciiSlice (buf, start, end) {
+  var ret = ''
+  end = Math.min(buf.length, end)
+
+  for (var i = start; i < end; ++i) {
+    ret += String.fromCharCode(buf[i] & 0x7F)
+  }
+  return ret
+}
+
+function latin1Slice (buf, start, end) {
+  var ret = ''
+  end = Math.min(buf.length, end)
+
+  for (var i = start; i < end; ++i) {
+    ret += String.fromCharCode(buf[i])
+  }
+  return ret
+}
+
+function hexSlice (buf, start, end) {
+  var len = buf.length
+
+  if (!start || start < 0) start = 0
+  if (!end || end < 0 || end > len) end = len
+
+  var out = ''
+  for (var i = start; i < end; ++i) {
+    out += toHex(buf[i])
+  }
+  return out
+}
+
+function utf16leSlice (buf, start, end) {
+  var bytes = buf.slice(start, end)
+  var res = ''
+  for (var i = 0; i < bytes.length; i += 2) {
+    res += String.fromCharCode(bytes[i] + (bytes[i + 1] * 256))
+  }
+  return res
+}
+
+Buffer.prototype.slice = function slice (start, end) {
+  var len = this.length
+  start = ~~start
+  end = end === undefined ? len : ~~end
+
+  if (start < 0) {
+    start += len
+    if (start < 0) start = 0
+  } else if (start > len) {
+    start = len
+  }
+
+  if (end < 0) {
+    end += len
+    if (end < 0) end = 0
+  } else if (end > len) {
+    end = len
+  }
+
+  if (end < start) end = start
+
+  var newBuf = this.subarray(start, end)
+  // Return an augmented `Uint8Array` instance
+  newBuf.__proto__ = Buffer.prototype
+  return newBuf
+}
+
+/*
+ * Need to make sure that buffer isn't trying to write out of bounds.
+ */
+function checkOffset (offset, ext, length) {
+  if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')
+  if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')
+}
+
+Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
+  offset = offset >>> 0
+  byteLength = byteLength >>> 0
+  if (!noAssert) checkOffset(offset, byteLength, this.length)
+
+  var val = this[offset]
+  var mul = 1
+  var i = 0
+  while (++i < byteLength && (mul *= 0x100)) {
+    val += this[offset + i] * mul
+  }
+
+  return val
+}
+
+Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
+  offset = offset >>> 0
+  byteLength = byteLength >>> 0
+  if (!noAssert) {
+    checkOffset(offset, byteLength, this.length)
+  }
+
+  var val = this[offset + --byteLength]
+  var mul = 1
+  while (byteLength > 0 && (mul *= 0x100)) {
+    val += this[offset + --byteLength] * mul
+  }
+
+  return val
+}
+
+Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 1, this.length)
+  return this[offset]
+}
+
+Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 2, this.length)
+  return this[offset] | (this[offset + 1] << 8)
+}
+
+Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 2, this.length)
+  return (this[offset] << 8) | this[offset + 1]
+}
+
+Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 4, this.length)
+
+  return ((this[offset]) |
+      (this[offset + 1] << 8) |
+      (this[offset + 2] << 16)) +
+      (this[offset + 3] * 0x1000000)
+}
+
+Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 4, this.length)
+
+  return (this[offset] * 0x1000000) +
+    ((this[offset + 1] << 16) |
+    (this[offset + 2] << 8) |
+    this[offset + 3])
+}
+
+Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
+  offset = offset >>> 0
+  byteLength = byteLength >>> 0
+  if (!noAssert) checkOffset(offset, byteLength, this.length)
+
+  var val = this[offset]
+  var mul = 1
+  var i = 0
+  while (++i < byteLength && (mul *= 0x100)) {
+    val += this[offset + i] * mul
+  }
+  mul *= 0x80
+
+  if (val >= mul) val -= Math.pow(2, 8 * byteLength)
+
+  return val
+}
+
+Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
+  offset = offset >>> 0
+  byteLength = byteLength >>> 0
+  if (!noAssert) checkOffset(offset, byteLength, this.length)
+
+  var i = byteLength
+  var mul = 1
+  var val = this[offset + --i]
+  while (i > 0 && (mul *= 0x100)) {
+    val += this[offset + --i] * mul
+  }
+  mul *= 0x80
+
+  if (val >= mul) val -= Math.pow(2, 8 * byteLength)
+
+  return val
+}
+
+Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 1, this.length)
+  if (!(this[offset] & 0x80)) return (this[offset])
+  return ((0xff - this[offset] + 1) * -1)
+}
+
+Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 2, this.length)
+  var val = this[offset] | (this[offset + 1] << 8)
+  return (val & 0x8000) ? val | 0xFFFF0000 : val
+}
+
+Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 2, this.length)
+  var val = this[offset + 1] | (this[offset] << 8)
+  return (val & 0x8000) ? val | 0xFFFF0000 : val
+}
+
+Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 4, this.length)
+
+  return (this[offset]) |
+    (this[offset + 1] << 8) |
+    (this[offset + 2] << 16) |
+    (this[offset + 3] << 24)
+}
+
+Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 4, this.length)
+
+  return (this[offset] << 24) |
+    (this[offset + 1] << 16) |
+    (this[offset + 2] << 8) |
+    (this[offset + 3])
+}
+
+Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 4, this.length)
+  return ieee754.read(this, offset, true, 23, 4)
+}
+
+Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 4, this.length)
+  return ieee754.read(this, offset, false, 23, 4)
+}
+
+Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 8, this.length)
+  return ieee754.read(this, offset, true, 52, 8)
+}
+
+Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 8, this.length)
+  return ieee754.read(this, offset, false, 52, 8)
+}
+
+function checkInt (buf, value, offset, ext, max, min) {
+  if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance')
+  if (value > max || value < min) throw new RangeError('"value" argument is out of bounds')
+  if (offset + ext > buf.length) throw new RangeError('Index out of range')
+}
+
+Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  byteLength = byteLength >>> 0
+  if (!noAssert) {
+    var maxBytes = Math.pow(2, 8 * byteLength) - 1
+    checkInt(this, value, offset, byteLength, maxBytes, 0)
+  }
+
+  var mul = 1
+  var i = 0
+  this[offset] = value & 0xFF
+  while (++i < byteLength && (mul *= 0x100)) {
+    this[offset + i] = (value / mul) & 0xFF
+  }
+
+  return offset + byteLength
+}
+
+Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  byteLength = byteLength >>> 0
+  if (!noAssert) {
+    var maxBytes = Math.pow(2, 8 * byteLength) - 1
+    checkInt(this, value, offset, byteLength, maxBytes, 0)
+  }
+
+  var i = byteLength - 1
+  var mul = 1
+  this[offset + i] = value & 0xFF
+  while (--i >= 0 && (mul *= 0x100)) {
+    this[offset + i] = (value / mul) & 0xFF
+  }
+
+  return offset + byteLength
+}
+
+Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
+  this[offset] = (value & 0xff)
+  return offset + 1
+}
+
+Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
+  this[offset] = (value & 0xff)
+  this[offset + 1] = (value >>> 8)
+  return offset + 2
+}
+
+Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
+  this[offset] = (value >>> 8)
+  this[offset + 1] = (value & 0xff)
+  return offset + 2
+}
+
+Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
+  this[offset + 3] = (value >>> 24)
+  this[offset + 2] = (value >>> 16)
+  this[offset + 1] = (value >>> 8)
+  this[offset] = (value & 0xff)
+  return offset + 4
+}
+
+Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
+  this[offset] = (value >>> 24)
+  this[offset + 1] = (value >>> 16)
+  this[offset + 2] = (value >>> 8)
+  this[offset + 3] = (value & 0xff)
+  return offset + 4
+}
+
+Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) {
+    var limit = Math.pow(2, (8 * byteLength) - 1)
+
+    checkInt(this, value, offset, byteLength, limit - 1, -limit)
+  }
+
+  var i = 0
+  var mul = 1
+  var sub = 0
+  this[offset] = value & 0xFF
+  while (++i < byteLength && (mul *= 0x100)) {
+    if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {
+      sub = 1
+    }
+    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
+  }
+
+  return offset + byteLength
+}
+
+Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) {
+    var limit = Math.pow(2, (8 * byteLength) - 1)
+
+    checkInt(this, value, offset, byteLength, limit - 1, -limit)
+  }
+
+  var i = byteLength - 1
+  var mul = 1
+  var sub = 0
+  this[offset + i] = value & 0xFF
+  while (--i >= 0 && (mul *= 0x100)) {
+    if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
+      sub = 1
+    }
+    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
+  }
+
+  return offset + byteLength
+}
+
+Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
+  if (value < 0) value = 0xff + value + 1
+  this[offset] = (value & 0xff)
+  return offset + 1
+}
+
+Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
+  this[offset] = (value & 0xff)
+  this[offset + 1] = (value >>> 8)
+  return offset + 2
+}
+
+Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
+  this[offset] = (value >>> 8)
+  this[offset + 1] = (value & 0xff)
+  return offset + 2
+}
+
+Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
+  this[offset] = (value & 0xff)
+  this[offset + 1] = (value >>> 8)
+  this[offset + 2] = (value >>> 16)
+  this[offset + 3] = (value >>> 24)
+  return offset + 4
+}
+
+Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
+  if (value < 0) value = 0xffffffff + value + 1
+  this[offset] = (value >>> 24)
+  this[offset + 1] = (value >>> 16)
+  this[offset + 2] = (value >>> 8)
+  this[offset + 3] = (value & 0xff)
+  return offset + 4
+}
+
+function checkIEEE754 (buf, value, offset, ext, max, min) {
+  if (offset + ext > buf.length) throw new RangeError('Index out of range')
+  if (offset < 0) throw new RangeError('Index out of range')
+}
+
+function writeFloat (buf, value, offset, littleEndian, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) {
+    checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)
+  }
+  ieee754.write(buf, value, offset, littleEndian, 23, 4)
+  return offset + 4
+}
+
+Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
+  return writeFloat(this, value, offset, true, noAssert)
+}
+
+Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
+  return writeFloat(this, value, offset, false, noAssert)
+}
+
+function writeDouble (buf, value, offset, littleEndian, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) {
+    checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
+  }
+  ieee754.write(buf, value, offset, littleEndian, 52, 8)
+  return offset + 8
+}
+
+Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
+  return writeDouble(this, value, offset, true, noAssert)
+}
+
+Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
+  return writeDouble(this, value, offset, false, noAssert)
+}
+
+// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
+Buffer.prototype.copy = function copy (target, targetStart, start, end) {
+  if (!start) start = 0
+  if (!end && end !== 0) end = this.length
+  if (targetStart >= target.length) targetStart = target.length
+  if (!targetStart) targetStart = 0
+  if (end > 0 && end < start) end = start
+
+  // Copy 0 bytes; we're done
+  if (end === start) return 0
+  if (target.length === 0 || this.length === 0) return 0
+
+  // Fatal error conditions
+  if (targetStart < 0) {
+    throw new RangeError('targetStart out of bounds')
+  }
+  if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds')
+  if (end < 0) throw new RangeError('sourceEnd out of bounds')
+
+  // Are we oob?
+  if (end > this.length) end = this.length
+  if (target.length - targetStart < end - start) {
+    end = target.length - targetStart + start
+  }
+
+  var len = end - start
+  var i
+
+  if (this === target && start < targetStart && targetStart < end) {
+    // descending copy from end
+    for (i = len - 1; i >= 0; --i) {
+      target[i + targetStart] = this[i + start]
+    }
+  } else if (len < 1000) {
+    // ascending copy from start
+    for (i = 0; i < len; ++i) {
+      target[i + targetStart] = this[i + start]
+    }
+  } else {
+    Uint8Array.prototype.set.call(
+      target,
+      this.subarray(start, start + len),
+      targetStart
+    )
+  }
+
+  return len
+}
+
+// Usage:
+//    buffer.fill(number[, offset[, end]])
+//    buffer.fill(buffer[, offset[, end]])
+//    buffer.fill(string[, offset[, end]][, encoding])
+Buffer.prototype.fill = function fill (val, start, end, encoding) {
+  // Handle string cases:
+  if (typeof val === 'string') {
+    if (typeof start === 'string') {
+      encoding = start
+      start = 0
+      end = this.length
+    } else if (typeof end === 'string') {
+      encoding = end
+      end = this.length
+    }
+    if (val.length === 1) {
+      var code = val.charCodeAt(0)
+      if (code < 256) {
+        val = code
+      }
+    }
+    if (encoding !== undefined && typeof encoding !== 'string') {
+      throw new TypeError('encoding must be a string')
+    }
+    if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {
+      throw new TypeError('Unknown encoding: ' + encoding)
+    }
+  } else if (typeof val === 'number') {
+    val = val & 255
+  }
+
+  // Invalid ranges are not set to a default, so can range check early.
+  if (start < 0 || this.length < start || this.length < end) {
+    throw new RangeError('Out of range index')
+  }
+
+  if (end <= start) {
+    return this
+  }
+
+  start = start >>> 0
+  end = end === undefined ? this.length : end >>> 0
+
+  if (!val) val = 0
+
+  var i
+  if (typeof val === 'number') {
+    for (i = start; i < end; ++i) {
+      this[i] = val
+    }
+  } else {
+    var bytes = Buffer.isBuffer(val)
+      ? val
+      : new Buffer(val, encoding)
+    var len = bytes.length
+    for (i = 0; i < end - start; ++i) {
+      this[i + start] = bytes[i % len]
+    }
+  }
+
+  return this
+}
+
+// HELPER FUNCTIONS
+// ================
+
+var INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g
+
+function base64clean (str) {
+  // Node strips out invalid characters like \n and \t from the string, base64-js does not
+  str = str.trim().replace(INVALID_BASE64_RE, '')
+  // Node converts strings with length < 2 to ''
+  if (str.length < 2) return ''
+  // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
+  while (str.length % 4 !== 0) {
+    str = str + '='
+  }
+  return str
+}
+
+function toHex (n) {
+  if (n < 16) return '0' + n.toString(16)
+  return n.toString(16)
+}
+
+function utf8ToBytes (string, units) {
+  units = units || Infinity
+  var codePoint
+  var length = string.length
+  var leadSurrogate = null
+  var bytes = []
+
+  for (var i = 0; i < length; ++i) {
+    codePoint = string.charCodeAt(i)
+
+    // is surrogate component
+    if (codePoint > 0xD7FF && codePoint < 0xE000) {
+      // last char was a lead
+      if (!leadSurrogate) {
+        // no lead yet
+        if (codePoint > 0xDBFF) {
+          // unexpected trail
+          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
+          continue
+        } else if (i + 1 === length) {
+          // unpaired lead
+          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
+          continue
+        }
+
+        // valid lead
+        leadSurrogate = codePoint
+
+        continue
+      }
+
+      // 2 leads in a row
+      if (codePoint < 0xDC00) {
+        if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
+        leadSurrogate = codePoint
+        continue
+      }
+
+      // valid surrogate pair
+      codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000
+    } else if (leadSurrogate) {
+      // valid bmp char, but last char was a lead
+      if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
+    }
+
+    leadSurrogate = null
+
+    // encode utf8
+    if (codePoint < 0x80) {
+      if ((units -= 1) < 0) break
+      bytes.push(codePoint)
+    } else if (codePoint < 0x800) {
+      if ((units -= 2) < 0) break
+      bytes.push(
+        codePoint >> 0x6 | 0xC0,
+        codePoint & 0x3F | 0x80
+      )
+    } else if (codePoint < 0x10000) {
+      if ((units -= 3) < 0) break
+      bytes.push(
+        codePoint >> 0xC | 0xE0,
+        codePoint >> 0x6 & 0x3F | 0x80,
+        codePoint & 0x3F | 0x80
+      )
+    } else if (codePoint < 0x110000) {
+      if ((units -= 4) < 0) break
+      bytes.push(
+        codePoint >> 0x12 | 0xF0,
+        codePoint >> 0xC & 0x3F | 0x80,
+        codePoint >> 0x6 & 0x3F | 0x80,
+        codePoint & 0x3F | 0x80
+      )
+    } else {
+      throw new Error('Invalid code point')
+    }
+  }
+
+  return bytes
+}
+
+function asciiToBytes (str) {
+  var byteArray = []
+  for (var i = 0; i < str.length; ++i) {
+    // Node's code seems to be doing this and not & 0x7F..
+    byteArray.push(str.charCodeAt(i) & 0xFF)
+  }
+  return byteArray
+}
+
+function utf16leToBytes (str, units) {
+  var c, hi, lo
+  var byteArray = []
+  for (var i = 0; i < str.length; ++i) {
+    if ((units -= 2) < 0) break
+
+    c = str.charCodeAt(i)
+    hi = c >> 8
+    lo = c % 256
+    byteArray.push(lo)
+    byteArray.push(hi)
+  }
+
+  return byteArray
+}
+
+function base64ToBytes (str) {
+  return base64.toByteArray(base64clean(str))
+}
+
+function blitBuffer (src, dst, offset, length) {
+  for (var i = 0; i < length; ++i) {
+    if ((i + offset >= dst.length) || (i >= src.length)) break
+    dst[i + offset] = src[i]
+  }
+  return i
+}
+
+// ArrayBuffers from another context (i.e. an iframe) do not pass the `instanceof` check
+// but they should be treated as valid. See: https://github.com/feross/buffer/issues/166
+function isArrayBuffer (obj) {
+  return obj instanceof ArrayBuffer ||
+    (obj != null && obj.constructor != null && obj.constructor.name === 'ArrayBuffer' &&
+      typeof obj.byteLength === 'number')
+}
+
+// Node 0.10 supports `ArrayBuffer` but lacks `ArrayBuffer.isView`
+function isArrayBufferView (obj) {
+  return (typeof ArrayBuffer.isView === 'function') && ArrayBuffer.isView(obj)
+}
+
+function numberIsNaN (obj) {
+  return obj !== obj // eslint-disable-line no-self-compare
+}
+
+},{"base64-js":2,"ieee754":20}],9:[function(require,module,exports){
+/**
+ * @license
+ * https://github.com/bitcoincashjs/cashaddr
+ * Copyright (c) 2017-2018 Emilio Almansi
+ * Distributed under the MIT software license, see the accompanying
+ * file LICENSE or http://www.opensource.org/licenses/mit-license.php.
+ */
+
+'use strict';
+
+var validate = require('./validation').validate;
+
+/**
+ * Base32 encoding and decoding.
+ *
+ * @module base32
+ */
+
+/**
+ * Charset containing the 32 symbols used in the base32 encoding.
+ * @private
+ */
+var CHARSET = 'qpzry9x8gf2tvdw0s3jn54khce6mua7l';
+
+/**
+ * Inverted index mapping each symbol into its index within the charset.
+ * @private
+ */
+var CHARSET_INVERSE_INDEX = {
+  'q': 0, 'p': 1, 'z': 2, 'r': 3, 'y': 4, '9': 5, 'x': 6, '8': 7,
+  'g': 8, 'f': 9, '2': 10, 't': 11, 'v': 12, 'd': 13, 'w': 14, '0': 15,
+  's': 16, '3': 17, 'j': 18, 'n': 19, '5': 20, '4': 21, 'k': 22, 'h': 23,
+  'c': 24, 'e': 25, '6': 26, 'm': 27, 'u': 28, 'a': 29, '7': 30, 'l': 31,
+};
+
+/**
+ * Encodes the given array of 5-bit integers as a base32-encoded string.
+ *
+ * @static
+ * @param {Uint8Array} data Array of integers between 0 and 31 inclusive.
+ * @returns {string}
+ * @throws {ValidationError}
+ */
+function encode(data) {
+  validate(data instanceof Uint8Array, 'Invalid data: ' + data + '.');
+  var base32 = '';
+  for (var i = 0; i < data.length; ++i) {
+    var value = data[i];
+    validate(0 <= value && value < 32, 'Invalid value: ' + value + '.');
+    base32 += CHARSET[value];
+  }
+  return base32;
+}
+
+/**
+ * Decodes the given base32-encoded string into an array of 5-bit integers.
+ *
+ * @static
+ * @param {string} string
+ * @returns {Uint8Array}
+ * @throws {ValidationError}
+ */
+function decode(string) {
+  validate(typeof string === 'string', 'Invalid base32-encoded string: ' + string + '.');
+  var data = new Uint8Array(string.length);
+  for (var i = 0; i < string.length; ++i) {
+    var value = string[i];
+    validate(value in CHARSET_INVERSE_INDEX, 'Invalid value: ' + value + '.');
+    data[i] = CHARSET_INVERSE_INDEX[value];
+  }
+  return data;
+}
+
+module.exports = {
+  encode: encode,
+  decode: decode,
+};
+
+},{"./validation":12}],10:[function(require,module,exports){
+/**
+ * @license
+ * https://github.com/bitcoincashjs/cashaddr
+ * Copyright (c) 2017-2018 Emilio Almansi
+ * Distributed under the MIT software license, see the accompanying
+ * file LICENSE or http://www.opensource.org/licenses/mit-license.php.
+ */
+
+'use strict';
+
+var base32 = require('./base32');
+var bigInt = require('big-integer');
+var convertBits = require('./convertBits');
+var validation = require('./validation');
+var validate = validation.validate;
+
+/**
+ * Encoding and decoding of the new Cash Address format for Bitcoin Cash. <br />
+ * Compliant with the original cashaddr specification:
+ * {@link https://github.com/Bitcoin-UAHF/spec/blob/master/cashaddr.md}
+ * @module cashaddr
+ */
+
+/**
+ * Encodes a hash from a given type into a Bitcoin Cash address with the given prefix.
+ * 
+ * @static
+ * @param {string} prefix Network prefix. E.g.: 'bitcoincash'.
+ * @param {string} type Type of address to generate. Either 'P2PKH' or 'P2SH'.
+ * @param {Uint8Array} hash Hash to encode represented as an array of 8-bit integers.
+ * @returns {string}
+ * @throws {ValidationError}
+ */
+function encode(prefix, type, hash) {
+  validate(typeof prefix === 'string' && isValidPrefix(prefix), 'Invalid prefix: ' + prefix + '.');
+  validate(typeof type === 'string', 'Invalid type: ' + type + '.');
+  validate(hash instanceof Uint8Array, 'Invalid hash: ' + hash + '.');
+  var prefixData = concat(prefixToUint5Array(prefix), new Uint8Array(1));
+  var versionByte = getTypeBits(type) + getHashSizeBits(hash);
+  var payloadData = toUint5Array(concat(Uint8Array.of(versionByte), hash));
+  var checksumData = concat(concat(prefixData, payloadData), new Uint8Array(8));
+  var payload = concat(payloadData, checksumToUint5Array(polymod(checksumData)));
+  return prefix + ':' + base32.encode(payload);
+}
+
+/**
+ * Decodes the given address into its constituting prefix, type and hash. See [#encode()]{@link encode}.
+ * 
+ * @static
+ * @param {string} address Address to decode. E.g.: 'bitcoincash:qpm2qsznhks23z7629mms6s4cwef74vcwvy22gdx6a'.
+ * @returns {object}
+ * @throws {ValidationError}
+ */
+function decode(address) {
+  validate(typeof address === 'string' && hasSingleCase(address), 'Invalid address: ' + address + '.');
+  var pieces = address.toLowerCase().split(':');
+  validate(pieces.length === 2, 'Missing prefix: ' + address + '.');
+  var prefix = pieces[0];
+  var payload = base32.decode(pieces[1]);
+  validate(validChecksum(prefix, payload), 'Invalid checksum: ' + address + '.');
+  var payloadData = fromUint5Array(payload.slice(0, -8));
+  var versionByte = payloadData[0];
+  var hash = payloadData.slice(1);
+  validate(getHashSize(versionByte) === hash.length * 8, 'Invalid hash size: ' + address + '.');
+  var type = getType(versionByte);
+  return {
+    prefix: prefix,
+    type: type,
+    hash: hash,
+  };
+}
+
+/**
+ * Error thrown when encoding or decoding fail due to invalid input.
+ *
+ * @constructor ValidationError
+ * @param {string} message Error description.
+ */
+var ValidationError = validation.ValidationError;
+
+/**
+ * Valid address prefixes.
+ *
+ * @private
+ */
+var VALID_PREFIXES = ['bitcoincash', 'bchtest', 'bchreg'];
+
+/**
+ * Checks whether a string is a valid prefix; ie., it has a single letter case
+ * and is one of 'bitcoincash', 'bchtest', or 'bchreg'.
+ *
+ * @private
+ * @param {string} prefix 
+ * @returns {boolean}
+ */
+function isValidPrefix(prefix) {
+  return hasSingleCase(prefix) && VALID_PREFIXES.indexOf(prefix.toLowerCase()) !== -1;
+}
+
+/**
+ * Derives an array from the given prefix to be used in the computation
+ * of the address' checksum.
+ *
+ * @private
+ * @param {string} prefix Network prefix. E.g.: 'bitcoincash'. 
+ * @returns {Uint8Array}
+ */
+function prefixToUint5Array(prefix) {
+  var result = new Uint8Array(prefix.length);
+  for (var i = 0; i < prefix.length; ++i) {
+    result[i] = prefix[i].charCodeAt(0) & 31;
+  }
+  return result;
+}
+
+/**
+ * Returns an array representation of the given checksum to be encoded
+ * within the address' payload.
+ *
+ * @private
+ * @param {BigInteger} checksum Computed checksum.
+ * @returns {Uint8Array}
+ */
+function checksumToUint5Array(checksum) {
+  var result = new Uint8Array(8);
+  for (var i = 0; i < 8; ++i) {
+    result[7 - i] = checksum.and(31).toJSNumber();
+    checksum = checksum.shiftRight(5);
+  }
+  return result;
+}
+
+/**
+ * Returns the bit representation of the given type within the version
+ * byte.
+ *
+ * @private
+ * @param {string} type Address type. Either 'P2PKH' or 'P2SH'.
+ * @returns {number}
+ * @throws {ValidationError}
+ */
+function getTypeBits(type) {
+  switch (type) {
+  case 'P2PKH':
+    return 0;
+  case 'P2SH':
+    return 8;
+  default:
+    throw new ValidationError('Invalid type: ' + type + '.');
+  }
+}
+
+/**
+ * Retrieves the address type from its bit representation within the
+ * version byte.
+ *
+ * @private
+ * @param {number} versionByte
+ * @returns {string}
+ * @throws {ValidationError}
+ */
+function getType(versionByte) {
+  switch (versionByte & 120) {
+  case 0:
+    return 'P2PKH';
+  case 8:
+    return 'P2SH';
+  default:
+    throw new ValidationError('Invalid address type in version byte: ' + versionByte + '.');
+  }
+}
+
+/**
+ * Returns the bit representation of the length in bits of the given
+ * hash within the version byte.
+ *
+ * @private
+ * @param {Uint8Array} hash Hash to encode represented as an array of 8-bit integers.
+ * @returns {number}
+ * @throws {ValidationError}
+ */
+function getHashSizeBits(hash) {
+  switch (hash.length * 8) {
+  case 160:
+    return 0;
+  case 192:
+    return 1;
+  case 224:
+    return 2;
+  case 256:
+    return 3;
+  case 320:
+    return 4;
+  case 384:
+    return 5;
+  case 448:
+    return 6;
+  case 512:
+    return 7;
+  default:
+    throw new ValidationError('Invalid hash size: ' + hash.length + '.');
+  }
+}
+
+/**
+ * Retrieves the the length in bits of the encoded hash from its bit
+ * representation within the version byte.
+ *
+ * @private
+ * @param {number} versionByte
+ * @returns {number}
+ */
+function getHashSize(versionByte) {
+  switch (versionByte & 7) {
+  case 0:
+    return 160;
+  case 1:
+    return 192;
+  case 2:
+    return 224;
+  case 3:
+    return 256;
+  case 4:
+    return 320;
+  case 5:
+    return 384;
+  case 6:
+    return 448;
+  case 7:
+    return 512;
+  }
+}
+
+/**
+ * Converts an array of 8-bit integers into an array of 5-bit integers,
+ * right-padding with zeroes if necessary.
+ *
+ * @private
+ * @param {Uint8Array} data
+ * @returns {Uint8Array}
+ */
+function toUint5Array(data) {
+  return convertBits(data, 8, 5);
+}
+
+/**
+ * Converts an array of 5-bit integers back into an array of 8-bit integers,
+ * removing extra zeroes left from padding if necessary.
+ * Throws a {@link ValidationError} if input is not a zero-padded array of 8-bit integers.
+ *
+ * @private
+ * @param {Uint8Array} data
+ * @returns {Uint8Array}
+ * @throws {ValidationError}
+ */
+function fromUint5Array(data) {
+  return convertBits(data, 5, 8, true);
+}
+
+/**
+ * Returns the concatenation a and b.
+ *
+ * @private
+ * @param {Uint8Array} a 
+ * @param {Uint8Array} b 
+ * @returns {Uint8Array}
+ * @throws {ValidationError}
+ */
+function concat(a, b) {
+  var ab = new Uint8Array(a.length + b.length);
+  ab.set(a);
+  ab.set(b, a.length);
+  return ab;
+}
+
+/**
+ * Computes a checksum from the given input data as specified for the CashAddr
+ * format: https://github.com/Bitcoin-UAHF/spec/blob/master/cashaddr.md.
+ *
+ * @private
+ * @param {Uint8Array} data Array of 5-bit integers over which the checksum is to be computed.
+ * @returns {BigInteger}
+ */
+function polymod(data) {
+  var GENERATOR = [0x98f2bc8e61, 0x79b76d99e2, 0xf33e5fb3c4, 0xae2eabe2a8, 0x1e4f43e470];
+  var checksum = bigInt(1);
+  for (var i = 0; i < data.length; ++i) {
+    var value = data[i];
+    var topBits = checksum.shiftRight(35);
+    checksum = checksum.and(0x07ffffffff).shiftLeft(5).xor(value);
+    for (var j = 0; j < GENERATOR.length; ++j) {
+      if (topBits.shiftRight(j).and(1).equals(1)) {
+        checksum = checksum.xor(GENERATOR[j]);
+      }
+    }
+  }
+  return checksum.xor(1);
+}
+
+/**
+ * Verify that the payload has not been corrupted by checking that the
+ * checksum is valid.
+ * 
+ * @private
+ * @param {string} prefix Network prefix. E.g.: 'bitcoincash'.
+ * @param {Uint8Array} payload Array of 5-bit integers containing the address' payload.
+ * @returns {boolean}
+ */
+function validChecksum(prefix, payload) {
+  var prefixData = concat(prefixToUint5Array(prefix), new Uint8Array(1));
+  var checksumData = concat(prefixData, payload);
+  return polymod(checksumData).equals(0);
+}
+
+/**
+ * Returns true if, and only if, the given string contains either uppercase
+ * or lowercase letters, but not both.
+ *
+ * @private
+ * @param {string} string Input string.
+ * @returns {boolean}
+ */
+function hasSingleCase(string) {
+  return string === string.toLowerCase() || string === string.toUpperCase();
+}
+
+module.exports = {
+  encode: encode,
+  decode: decode,
+  ValidationError: ValidationError,
+};
+
+},{"./base32":9,"./convertBits":11,"./validation":12,"big-integer":3}],11:[function(require,module,exports){
+// Copyright (c) 2017-2018 Emilio Almansi
+// Copyright (c) 2017 Pieter Wuille
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+'use strict';
+
+var validate = require('./validation').validate;
+
+/**
+ * Converts an array of integers made up of 'from' bits into an
+ * array of integers made up of 'to' bits. The output array is
+ * zero-padded if necessary, unless strict mode is true.
+ * Throws a {@link ValidationError} if input is invalid.
+ * Original by Pieter Wuille: https://github.com/sipa/bech32.
+ *
+ * @param {Uint8Array} data Array of integers made up of 'from' bits.
+ * @param {number} from Length in bits of elements in the input array.
+ * @param {number} to Length in bits of elements in the output array.
+ * @param {bool} strictMode Require the conversion to be completed without padding.
+ * @returns {Uint8Array}
+ */
+module.exports = function(data, from, to, strictMode) {
+  var length = strictMode
+    ? Math.floor(data.length * from / to)
+    : Math.ceil(data.length * from / to);
+  var mask = (1 << to) - 1;
+  var result = new Uint8Array(length);
+  var index = 0;
+  var accumulator = 0;
+  var bits = 0;
+  for (var i = 0; i < data.length; ++i) {
+    var value = data[i];
+    validate(0 <= value && (value >> from) === 0, 'Invalid value: ' + value + '.');
+    accumulator = (accumulator << from) | value;
+    bits += from;
+    while (bits >= to) {
+      bits -= to;
+      result[index] = (accumulator >> bits) & mask;
+      ++index;
+    }
+  }
+  if (!strictMode) {
+    if (bits > 0) {
+      result[index] = (accumulator << (to - bits)) & mask;
+      ++index;
+    }
+  } else {
+    validate(
+      bits < from && ((accumulator << (to - bits)) & mask) === 0,
+      'Input cannot be converted to ' + to + ' bits without padding, but strict mode was used.'
+    );
+  }
+  return result;
+};
+
+},{"./validation":12}],12:[function(require,module,exports){
+/**
+ * @license
+ * https://github.com/bitcoincashjs/cashaddr
+ * Copyright (c) 2017-2018 Emilio Almansi
+ * Distributed under the MIT software license, see the accompanying
+ * file LICENSE or http://www.opensource.org/licenses/mit-license.php.
+ */
+
+'use strict';
+
+/**
+ * Validation utility.
+ *
+ * @module validation
+ */
+
+/**
+ * Error thrown when encoding or decoding fail due to invalid input.
+ *
+ * @constructor ValidationError
+ * @param {string} message Error description.
+ */
+function ValidationError(message) {
+  var error = new Error();
+  this.name = error.name = 'ValidationError';
+  this.message = error.message = message;
+  this.stack = error.stack;
+}
+
+ValidationError.prototype = Object.create(Error.prototype);
+
+/**
+ * Validates a given condition, throwing a {@link ValidationError} if
+ * the given condition does not hold.
+ *
+ * @static
+ * @param {boolean} condition Condition to validate.
+ * @param {string} message Error message in case the condition does not hold.
+ */
+function validate(condition, message) {
+  if (!condition) {
+    throw new ValidationError(message);
+  }
+}
+
+module.exports = {
+  ValidationError: ValidationError,
+  validate: validate,
+};
+
+},{}],13:[function(require,module,exports){
+var Buffer = require('safe-buffer').Buffer
+var Transform = require('stream').Transform
+var StringDecoder = require('string_decoder').StringDecoder
+var inherits = require('inherits')
+
+function CipherBase (hashMode) {
+  Transform.call(this)
+  this.hashMode = typeof hashMode === 'string'
+  if (this.hashMode) {
+    this[hashMode] = this._finalOrDigest
+  } else {
+    this.final = this._finalOrDigest
+  }
+  if (this._final) {
+    this.__final = this._final
+    this._final = null
+  }
+  this._decoder = null
+  this._encoding = null
+}
+inherits(CipherBase, Transform)
+
+CipherBase.prototype.update = function (data, inputEnc, outputEnc) {
+  if (typeof data === 'string') {
+    data = Buffer.from(data, inputEnc)
+  }
+
+  var outData = this._update(data)
+  if (this.hashMode) return this
+
+  if (outputEnc) {
+    outData = this._toString(outData, outputEnc)
+  }
+
+  return outData
+}
+
+CipherBase.prototype.setAutoPadding = function () {}
+CipherBase.prototype.getAuthTag = function () {
+  throw new Error('trying to get auth tag in unsupported state')
+}
+
+CipherBase.prototype.setAuthTag = function () {
+  throw new Error('trying to set auth tag in unsupported state')
+}
+
+CipherBase.prototype.setAAD = function () {
+  throw new Error('trying to set aad in unsupported state')
+}
+
+CipherBase.prototype._transform = function (data, _, next) {
+  var err
+  try {
+    if (this.hashMode) {
+      this._update(data)
+    } else {
+      this.push(this._update(data))
+    }
+  } catch (e) {
+    err = e
+  } finally {
+    next(err)
+  }
+}
+CipherBase.prototype._flush = function (done) {
+  var err
+  try {
+    this.push(this.__final())
+  } catch (e) {
+    err = e
+  }
+
+  done(err)
+}
+CipherBase.prototype._finalOrDigest = function (outputEnc) {
+  var outData = this.__final() || Buffer.alloc(0)
+  if (outputEnc) {
+    outData = this._toString(outData, outputEnc, true)
+  }
+  return outData
+}
+
+CipherBase.prototype._toString = function (value, enc, fin) {
+  if (!this._decoder) {
+    this._decoder = new StringDecoder(enc)
+    this._encoding = enc
+  }
 
-},{}],54:[function(require,module,exports){
-'use strict';
+  if (this._encoding !== enc) throw new Error('can\'t switch encodings')
 
-var utils = exports;
-var BN = require('bn.js');
+  var out = this._decoder.write(value)
+  if (fin) {
+    out += this._decoder.end()
+  }
 
-utils.assert = function assert(val, msg) {
-  if (!val)
-    throw new Error(msg || 'Assertion failed');
-};
+  return out
+}
 
-function toArray(msg, enc) {
-  if (Array.isArray(msg))
-    return msg.slice();
-  if (!msg)
-    return [];
-  var res = [];
-  if (typeof msg !== 'string') {
-    for (var i = 0; i < msg.length; i++)
-      res[i] = msg[i] | 0;
-    return res;
-  }
-  if (!enc) {
-    for (var i = 0; i < msg.length; i++) {
-      var c = msg.charCodeAt(i);
-      var hi = c >> 8;
-      var lo = c & 0xff;
-      if (hi)
-        res.push(hi, lo);
-      else
-        res.push(lo);
-    }
-  } else if (enc === 'hex') {
-    msg = msg.replace(/[^a-z0-9]+/ig, '');
-    if (msg.length % 2 !== 0)
-      msg = '0' + msg;
-    for (var i = 0; i < msg.length; i += 2)
-      res.push(parseInt(msg[i] + msg[i + 1], 16));
+module.exports = CipherBase
+
+},{"inherits":21,"safe-buffer":40,"stream":49,"string_decoder":50}],14:[function(require,module,exports){
+(function (Buffer){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// NOTE: These type checking functions intentionally don't use `instanceof`
+// because it is fragile and can be easily faked with `Object.create()`.
+
+function isArray(arg) {
+  if (Array.isArray) {
+    return Array.isArray(arg);
   }
-  return res;
+  return objectToString(arg) === '[object Array]';
 }
-utils.toArray = toArray;
+exports.isArray = isArray;
 
-function zero2(word) {
-  if (word.length === 1)
-    return '0' + word;
-  else
-    return word;
+function isBoolean(arg) {
+  return typeof arg === 'boolean';
 }
-utils.zero2 = zero2;
+exports.isBoolean = isBoolean;
 
-function toHex(msg) {
-  var res = '';
-  for (var i = 0; i < msg.length; i++)
-    res += zero2(msg[i].toString(16));
-  return res;
+function isNull(arg) {
+  return arg === null;
 }
-utils.toHex = toHex;
+exports.isNull = isNull;
 
-utils.encode = function encode(arr, enc) {
-  if (enc === 'hex')
-    return toHex(arr);
-  else
-    return arr;
-};
+function isNullOrUndefined(arg) {
+  return arg == null;
+}
+exports.isNullOrUndefined = isNullOrUndefined;
 
-// Represent num in a w-NAF form
-function getNAF(num, w) {
-  var naf = [];
-  var ws = 1 << (w + 1);
-  var k = num.clone();
-  while (k.cmpn(1) >= 0) {
-    var z;
-    if (k.isOdd()) {
-      var mod = k.andln(ws - 1);
-      if (mod > (ws >> 1) - 1)
-        z = (ws >> 1) - mod;
-      else
-        z = mod;
-      k.isubn(z);
-    } else {
-      z = 0;
-    }
-    naf.push(z);
+function isNumber(arg) {
+  return typeof arg === 'number';
+}
+exports.isNumber = isNumber;
 
-    // Optimization, shift by word if possible
-    var shift = (k.cmpn(0) !== 0 && k.andln(ws - 1) === 0) ? (w + 1) : 1;
-    for (var i = 1; i < shift; i++)
-      naf.push(0);
-    k.iushrn(shift);
-  }
+function isString(arg) {
+  return typeof arg === 'string';
+}
+exports.isString = isString;
 
-  return naf;
+function isSymbol(arg) {
+  return typeof arg === 'symbol';
 }
-utils.getNAF = getNAF;
+exports.isSymbol = isSymbol;
 
-// Represent k1, k2 in a Joint Sparse Form
-function getJSF(k1, k2) {
-  var jsf = [
-    [],
-    []
-  ];
+function isUndefined(arg) {
+  return arg === void 0;
+}
+exports.isUndefined = isUndefined;
 
-  k1 = k1.clone();
-  k2 = k2.clone();
-  var d1 = 0;
-  var d2 = 0;
-  while (k1.cmpn(-d1) > 0 || k2.cmpn(-d2) > 0) {
+function isRegExp(re) {
+  return objectToString(re) === '[object RegExp]';
+}
+exports.isRegExp = isRegExp;
 
-    // First phase
-    var m14 = (k1.andln(3) + d1) & 3;
-    var m24 = (k2.andln(3) + d2) & 3;
-    if (m14 === 3)
-      m14 = -1;
-    if (m24 === 3)
-      m24 = -1;
-    var u1;
-    if ((m14 & 1) === 0) {
-      u1 = 0;
-    } else {
-      var m8 = (k1.andln(7) + d1) & 7;
-      if ((m8 === 3 || m8 === 5) && m24 === 2)
-        u1 = -m14;
-      else
-        u1 = m14;
-    }
-    jsf[0].push(u1);
+function isObject(arg) {
+  return typeof arg === 'object' && arg !== null;
+}
+exports.isObject = isObject;
 
-    var u2;
-    if ((m24 & 1) === 0) {
-      u2 = 0;
-    } else {
-      var m8 = (k2.andln(7) + d2) & 7;
-      if ((m8 === 3 || m8 === 5) && m14 === 2)
-        u2 = -m24;
-      else
-        u2 = m24;
-    }
-    jsf[1].push(u2);
+function isDate(d) {
+  return objectToString(d) === '[object Date]';
+}
+exports.isDate = isDate;
 
-    // Second phase
-    if (2 * d1 === u1 + 1)
-      d1 = 1 - d1;
-    if (2 * d2 === u2 + 1)
-      d2 = 1 - d2;
-    k1.iushrn(1);
-    k2.iushrn(1);
-  }
+function isError(e) {
+  return (objectToString(e) === '[object Error]' || e instanceof Error);
+}
+exports.isError = isError;
 
-  return jsf;
+function isFunction(arg) {
+  return typeof arg === 'function';
 }
-utils.getJSF = getJSF;
+exports.isFunction = isFunction;
 
-function cachedProperty(obj, name, computer) {
-  var key = '_' + name;
-  obj.prototype[name] = function cachedProperty() {
-    return this[key] !== undefined ? this[key] :
-           this[key] = computer.call(this);
-  };
+function isPrimitive(arg) {
+  return arg === null ||
+         typeof arg === 'boolean' ||
+         typeof arg === 'number' ||
+         typeof arg === 'string' ||
+         typeof arg === 'symbol' ||  // ES6 symbol
+         typeof arg === 'undefined';
 }
-utils.cachedProperty = cachedProperty;
+exports.isPrimitive = isPrimitive;
 
-function parseBytes(bytes) {
-  return typeof bytes === 'string' ? utils.toArray(bytes, 'hex') :
-                                     bytes;
+exports.isBuffer = Buffer.isBuffer;
+
+function objectToString(o) {
+  return Object.prototype.toString.call(o);
 }
-utils.parseBytes = parseBytes;
 
-function intFromLE(bytes) {
-  return new BN(bytes, 'hex', 'le');
+}).call(this,{"isBuffer":require("../../is-buffer/index.js")})
+},{"../../is-buffer/index.js":22}],15:[function(require,module,exports){
+(function (Buffer){
+'use strict'
+var inherits = require('inherits')
+var md5 = require('./md5')
+var RIPEMD160 = require('ripemd160')
+var sha = require('sha.js')
+
+var Base = require('cipher-base')
+
+function HashNoConstructor (hash) {
+  Base.call(this, 'digest')
+
+  this._hash = hash
+  this.buffers = []
 }
-utils.intFromLE = intFromLE;
 
+inherits(HashNoConstructor, Base)
 
-},{"bn.js":33}],55:[function(require,module,exports){
-module.exports={
-  "_args": [
-    [
-      {
-        "raw": "elliptic@^6.2.3",
-        "scope": null,
-        "escapedName": "elliptic",
-        "name": "elliptic",
-        "rawSpec": "^6.2.3",
-        "spec": ">=6.2.3 <7.0.0",
-        "type": "range"
-      },
-      "/home/user/ethereum/ethereumjs-util/node_modules/secp256k1"
-    ]
-  ],
-  "_from": "elliptic@>=6.2.3 <7.0.0",
-  "_id": "elliptic@6.3.3",
-  "_inCache": true,
-  "_location": "/elliptic",
-  "_nodeVersion": "7.0.0",
-  "_npmOperationalInternal": {
-    "host": "packages-18-east.internal.npmjs.com",
-    "tmp": "tmp/elliptic-6.3.3.tgz_1486422837740_0.10658654430881143"
-  },
-  "_npmUser": {
-    "name": "indutny",
-    "email": "fedor@indutny.com"
-  },
-  "_npmVersion": "3.10.8",
-  "_phantomChildren": {},
-  "_requested": {
-    "raw": "elliptic@^6.2.3",
-    "scope": null,
-    "escapedName": "elliptic",
-    "name": "elliptic",
-    "rawSpec": "^6.2.3",
-    "spec": ">=6.2.3 <7.0.0",
-    "type": "range"
-  },
-  "_requiredBy": [
-    "/browserify-sign",
-    "/create-ecdh",
-    "/secp256k1"
-  ],
-  "_resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.3.3.tgz",
-  "_shasum": "5482d9646d54bcb89fd7d994fc9e2e9568876e3f",
-  "_shrinkwrap": null,
-  "_spec": "elliptic@^6.2.3",
-  "_where": "/home/user/ethereum/ethereumjs-util/node_modules/secp256k1",
-  "author": {
-    "name": "Fedor Indutny",
-    "email": "fedor@indutny.com"
-  },
-  "bugs": {
-    "url": "https://github.com/indutny/elliptic/issues"
-  },
-  "dependencies": {
-    "bn.js": "^4.4.0",
-    "brorand": "^1.0.1",
-    "hash.js": "^1.0.0",
-    "inherits": "^2.0.1"
-  },
-  "description": "EC cryptography",
-  "devDependencies": {
-    "brfs": "^1.4.3",
-    "coveralls": "^2.11.3",
-    "grunt": "^0.4.5",
-    "grunt-browserify": "^5.0.0",
-    "grunt-cli": "^1.2.0",
-    "grunt-contrib-connect": "^1.0.0",
-    "grunt-contrib-copy": "^1.0.0",
-    "grunt-contrib-uglify": "^1.0.1",
-    "grunt-mocha-istanbul": "^3.0.1",
-    "grunt-saucelabs": "^8.6.2",
-    "istanbul": "^0.4.2",
-    "jscs": "^2.9.0",
-    "jshint": "^2.6.0",
-    "mocha": "^2.1.0"
-  },
-  "directories": {},
-  "dist": {
-    "shasum": "5482d9646d54bcb89fd7d994fc9e2e9568876e3f",
-    "tarball": "https://registry.npmjs.org/elliptic/-/elliptic-6.3.3.tgz"
-  },
-  "files": [
-    "lib"
-  ],
-  "gitHead": "63aee8d697e9b7fac37ece24222029117a890a7e",
-  "homepage": "https://github.com/indutny/elliptic",
-  "keywords": [
-    "EC",
-    "Elliptic",
-    "curve",
-    "Cryptography"
-  ],
-  "license": "MIT",
-  "main": "lib/elliptic.js",
-  "maintainers": [
-    {
-      "name": "indutny",
-      "email": "fedor@indutny.com"
-    }
-  ],
-  "name": "elliptic",
-  "optionalDependencies": {},
-  "readme": "ERROR: No README data found!",
-  "repository": {
-    "type": "git",
-    "url": "git+ssh://git@github.com/indutny/elliptic.git"
-  },
-  "scripts": {
-    "jscs": "jscs benchmarks/*.js lib/*.js lib/**/*.js lib/**/**/*.js test/index.js",
-    "jshint": "jscs benchmarks/*.js lib/*.js lib/**/*.js lib/**/**/*.js test/index.js",
-    "lint": "npm run jscs && npm run jshint",
-    "test": "npm run lint && npm run unit",
-    "unit": "istanbul test _mocha --reporter=spec test/index.js",
-    "version": "grunt dist && git add dist/"
-  },
-  "version": "6.3.3"
+HashNoConstructor.prototype._update = function (data) {
+  this.buffers.push(data)
 }
 
-},{}],56:[function(require,module,exports){
+HashNoConstructor.prototype._final = function () {
+  var buf = Buffer.concat(this.buffers)
+  var r = this._hash(buf)
+  this.buffers = null
+
+  return r
+}
+
+function Hash (hash) {
+  Base.call(this, 'digest')
+
+  this._hash = hash
+}
+
+inherits(Hash, Base)
+
+Hash.prototype._update = function (data) {
+  this._hash.update(data)
+}
+
+Hash.prototype._final = function () {
+  return this._hash.digest()
+}
+
+module.exports = function createHash (alg) {
+  alg = alg.toLowerCase()
+  if (alg === 'md5') return new HashNoConstructor(md5)
+  if (alg === 'rmd160' || alg === 'ripemd160') return new Hash(new RIPEMD160())
+
+  return new Hash(sha(alg))
+}
+
+}).call(this,require("buffer").Buffer)
+},{"./md5":17,"buffer":8,"cipher-base":13,"inherits":21,"ripemd160":39,"sha.js":42}],16:[function(require,module,exports){
 (function (Buffer){
-'use strict';
+'use strict'
+var intSize = 4
+var zeroBuffer = new Buffer(intSize)
+zeroBuffer.fill(0)
 
-var isHexPrefixed = require('is-hex-prefixed');
-var stripHexPrefix = require('strip-hex-prefix');
+var charSize = 8
+var hashSize = 16
 
-/**
- * Pads a `String` to have an even length
- * @param {String} value
- * @return {String} output
+function toArray (buf) {
+  if ((buf.length % intSize) !== 0) {
+    var len = buf.length + (intSize - (buf.length % intSize))
+    buf = Buffer.concat([buf, zeroBuffer], len)
+  }
+
+  var arr = new Array(buf.length >>> 2)
+  for (var i = 0, j = 0; i < buf.length; i += intSize, j++) {
+    arr[j] = buf.readInt32LE(i)
+  }
+
+  return arr
+}
+
+module.exports = function hash (buf, fn) {
+  var arr = fn(toArray(buf), buf.length * charSize)
+  buf = new Buffer(hashSize)
+  for (var i = 0; i < arr.length; i++) {
+    buf.writeInt32LE(arr[i], i << 2, true)
+  }
+  return buf
+}
+
+}).call(this,require("buffer").Buffer)
+},{"buffer":8}],17:[function(require,module,exports){
+'use strict'
+/*
+ * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
+ * Digest Algorithm, as defined in RFC 1321.
+ * Version 2.1 Copyright (C) Paul Johnston 1999 - 2002.
+ * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
+ * Distributed under the BSD License
+ * See http://pajhome.org.uk/crypt/md5 for more info.
  */
-function padToEven(value) {
-  var a = value; // eslint-disable-line
 
-  if (typeof a !== 'string') {
-    throw new Error('[ethjs-util] while padding to even, value must be string, is currently ' + typeof a + ', while padToEven.');
-  }
+var makeHash = require('./make-hash')
+
+/*
+ * Calculate the MD5 of an array of little-endian words, and a bit length
+ */
+function core_md5 (x, len) {
+  /* append padding */
+  x[len >> 5] |= 0x80 << ((len) % 32)
+  x[(((len + 64) >>> 9) << 4) + 14] = len
+
+  var a = 1732584193
+  var b = -271733879
+  var c = -1732584194
+  var d = 271733878
+
+  for (var i = 0; i < x.length; i += 16) {
+    var olda = a
+    var oldb = b
+    var oldc = c
+    var oldd = d
+
+    a = md5_ff(a, b, c, d, x[i + 0], 7, -680876936)
+    d = md5_ff(d, a, b, c, x[i + 1], 12, -389564586)
+    c = md5_ff(c, d, a, b, x[i + 2], 17, 606105819)
+    b = md5_ff(b, c, d, a, x[i + 3], 22, -1044525330)
+    a = md5_ff(a, b, c, d, x[i + 4], 7, -176418897)
+    d = md5_ff(d, a, b, c, x[i + 5], 12, 1200080426)
+    c = md5_ff(c, d, a, b, x[i + 6], 17, -1473231341)
+    b = md5_ff(b, c, d, a, x[i + 7], 22, -45705983)
+    a = md5_ff(a, b, c, d, x[i + 8], 7, 1770035416)
+    d = md5_ff(d, a, b, c, x[i + 9], 12, -1958414417)
+    c = md5_ff(c, d, a, b, x[i + 10], 17, -42063)
+    b = md5_ff(b, c, d, a, x[i + 11], 22, -1990404162)
+    a = md5_ff(a, b, c, d, x[i + 12], 7, 1804603682)
+    d = md5_ff(d, a, b, c, x[i + 13], 12, -40341101)
+    c = md5_ff(c, d, a, b, x[i + 14], 17, -1502002290)
+    b = md5_ff(b, c, d, a, x[i + 15], 22, 1236535329)
+
+    a = md5_gg(a, b, c, d, x[i + 1], 5, -165796510)
+    d = md5_gg(d, a, b, c, x[i + 6], 9, -1069501632)
+    c = md5_gg(c, d, a, b, x[i + 11], 14, 643717713)
+    b = md5_gg(b, c, d, a, x[i + 0], 20, -373897302)
+    a = md5_gg(a, b, c, d, x[i + 5], 5, -701558691)
+    d = md5_gg(d, a, b, c, x[i + 10], 9, 38016083)
+    c = md5_gg(c, d, a, b, x[i + 15], 14, -660478335)
+    b = md5_gg(b, c, d, a, x[i + 4], 20, -405537848)
+    a = md5_gg(a, b, c, d, x[i + 9], 5, 568446438)
+    d = md5_gg(d, a, b, c, x[i + 14], 9, -1019803690)
+    c = md5_gg(c, d, a, b, x[i + 3], 14, -187363961)
+    b = md5_gg(b, c, d, a, x[i + 8], 20, 1163531501)
+    a = md5_gg(a, b, c, d, x[i + 13], 5, -1444681467)
+    d = md5_gg(d, a, b, c, x[i + 2], 9, -51403784)
+    c = md5_gg(c, d, a, b, x[i + 7], 14, 1735328473)
+    b = md5_gg(b, c, d, a, x[i + 12], 20, -1926607734)
+
+    a = md5_hh(a, b, c, d, x[i + 5], 4, -378558)
+    d = md5_hh(d, a, b, c, x[i + 8], 11, -2022574463)
+    c = md5_hh(c, d, a, b, x[i + 11], 16, 1839030562)
+    b = md5_hh(b, c, d, a, x[i + 14], 23, -35309556)
+    a = md5_hh(a, b, c, d, x[i + 1], 4, -1530992060)
+    d = md5_hh(d, a, b, c, x[i + 4], 11, 1272893353)
+    c = md5_hh(c, d, a, b, x[i + 7], 16, -155497632)
+    b = md5_hh(b, c, d, a, x[i + 10], 23, -1094730640)
+    a = md5_hh(a, b, c, d, x[i + 13], 4, 681279174)
+    d = md5_hh(d, a, b, c, x[i + 0], 11, -358537222)
+    c = md5_hh(c, d, a, b, x[i + 3], 16, -722521979)
+    b = md5_hh(b, c, d, a, x[i + 6], 23, 76029189)
+    a = md5_hh(a, b, c, d, x[i + 9], 4, -640364487)
+    d = md5_hh(d, a, b, c, x[i + 12], 11, -421815835)
+    c = md5_hh(c, d, a, b, x[i + 15], 16, 530742520)
+    b = md5_hh(b, c, d, a, x[i + 2], 23, -995338651)
 
-  if (a.length % 2) {
-    a = '0' + a;
+    a = md5_ii(a, b, c, d, x[i + 0], 6, -198630844)
+    d = md5_ii(d, a, b, c, x[i + 7], 10, 1126891415)
+    c = md5_ii(c, d, a, b, x[i + 14], 15, -1416354905)
+    b = md5_ii(b, c, d, a, x[i + 5], 21, -57434055)
+    a = md5_ii(a, b, c, d, x[i + 12], 6, 1700485571)
+    d = md5_ii(d, a, b, c, x[i + 3], 10, -1894986606)
+    c = md5_ii(c, d, a, b, x[i + 10], 15, -1051523)
+    b = md5_ii(b, c, d, a, x[i + 1], 21, -2054922799)
+    a = md5_ii(a, b, c, d, x[i + 8], 6, 1873313359)
+    d = md5_ii(d, a, b, c, x[i + 15], 10, -30611744)
+    c = md5_ii(c, d, a, b, x[i + 6], 15, -1560198380)
+    b = md5_ii(b, c, d, a, x[i + 13], 21, 1309151649)
+    a = md5_ii(a, b, c, d, x[i + 4], 6, -145523070)
+    d = md5_ii(d, a, b, c, x[i + 11], 10, -1120210379)
+    c = md5_ii(c, d, a, b, x[i + 2], 15, 718787259)
+    b = md5_ii(b, c, d, a, x[i + 9], 21, -343485551)
+
+    a = safe_add(a, olda)
+    b = safe_add(b, oldb)
+    c = safe_add(c, oldc)
+    d = safe_add(d, oldd)
   }
 
-  return a;
+  return [a, b, c, d]
 }
 
-/**
- * Converts a `Number` into a hex `String`
- * @param {Number} i
- * @return {String}
+/*
+ * These functions implement the four basic operations the algorithm uses.
  */
-function intToHex(i) {
-  var hex = i.toString(16); // eslint-disable-line
+function md5_cmn (q, a, b, x, s, t) {
+  return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s), b)
+}
 
-  return '0x' + padToEven(hex);
+function md5_ff (a, b, c, d, x, s, t) {
+  return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t)
 }
 
-/**
- * Converts an `Number` to a `Buffer`
- * @param {Number} i
- * @return {Buffer}
- */
-function intToBuffer(i) {
-  var hex = intToHex(i);
+function md5_gg (a, b, c, d, x, s, t) {
+  return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t)
+}
 
-  return new Buffer(hex.slice(2), 'hex');
+function md5_hh (a, b, c, d, x, s, t) {
+  return md5_cmn(b ^ c ^ d, a, b, x, s, t)
 }
 
-/**
- * Get the binary size of a string
- * @param {String} str
- * @return {Number}
- */
-function getBinarySize(str) {
-  if (typeof str !== 'string') {
-    throw new Error('[ethjs-util] while getting binary size, method getBinarySize requires input \'str\' to be type String, got \'' + typeof str + '\'.');
-  }
+function md5_ii (a, b, c, d, x, s, t) {
+  return md5_cmn(c ^ (b | (~d)), a, b, x, s, t)
+}
 
-  return Buffer.byteLength(str, 'utf8');
+/*
+ * Add integers, wrapping at 2^32. This uses 16-bit operations internally
+ * to work around bugs in some JS interpreters.
+ */
+function safe_add (x, y) {
+  var lsw = (x & 0xFFFF) + (y & 0xFFFF)
+  var msw = (x >> 16) + (y >> 16) + (lsw >> 16)
+  return (msw << 16) | (lsw & 0xFFFF)
 }
 
-/**
- * Returns TRUE if the first specified array contains all elements
- * from the second one. FALSE otherwise.
- *
- * @param {array} superset
- * @param {array} subset
- *
- * @returns {boolean}
+/*
+ * Bitwise rotate a 32-bit number to the left.
  */
-function arrayContainsArray(superset, subset, some) {
-  if (Array.isArray(superset) !== true) {
-    throw new Error('[ethjs-util] method arrayContainsArray requires input \'superset\' to be an array got type \'' + typeof superset + '\'');
-  }
-  if (Array.isArray(subset) !== true) {
-    throw new Error('[ethjs-util] method arrayContainsArray requires input \'subset\' to be an array got type \'' + typeof subset + '\'');
-  }
+function bit_rol (num, cnt) {
+  return (num << cnt) | (num >>> (32 - cnt))
+}
 
-  return subset[Boolean(some) && 'some' || 'every'](function (value) {
-    return superset.indexOf(value) >= 0;
-  });
+module.exports = function md5 (buf) {
+  return makeHash(buf, core_md5)
 }
 
-/**
- * Should be called to get utf8 from it's hex representation
- *
- * @method toUtf8
- * @param {String} string in hex
- * @returns {String} ascii string representation of hex value
- */
-function toUtf8(hex) {
-  var bufferValue = new Buffer(padToEven(stripHexPrefix(hex).replace(/^0+|0+$/g, '')), 'hex');
+},{"./make-hash":16}],18:[function(require,module,exports){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-  return bufferValue.toString('utf8');
+function EventEmitter() {
+  this._events = this._events || {};
+  this._maxListeners = this._maxListeners || undefined;
 }
+module.exports = EventEmitter;
 
-/**
- * Should be called to get ascii from it's hex representation
- *
- * @method toAscii
- * @param {String} string in hex
- * @returns {String} ascii string representation of hex value
- */
-function toAscii(hex) {
-  var str = ''; // eslint-disable-line
-  var i = 0,
-      l = hex.length; // eslint-disable-line
+// Backwards-compat with node 0.10.x
+EventEmitter.EventEmitter = EventEmitter;
 
-  if (hex.substring(0, 2) === '0x') {
-    i = 2;
+EventEmitter.prototype._events = undefined;
+EventEmitter.prototype._maxListeners = undefined;
+
+// By default EventEmitters will print a warning if more than 10 listeners are
+// added to it. This is a useful default which helps finding memory leaks.
+EventEmitter.defaultMaxListeners = 10;
+
+// Obviously not all Emitters should be limited to 10. This function allows
+// that to be increased. Set to zero for unlimited.
+EventEmitter.prototype.setMaxListeners = function(n) {
+  if (!isNumber(n) || n < 0 || isNaN(n))
+    throw TypeError('n must be a positive number');
+  this._maxListeners = n;
+  return this;
+};
+
+EventEmitter.prototype.emit = function(type) {
+  var er, handler, len, args, i, listeners;
+
+  if (!this._events)
+    this._events = {};
+
+  // If there is no 'error' event listener then throw.
+  if (type === 'error') {
+    if (!this._events.error ||
+        (isObject(this._events.error) && !this._events.error.length)) {
+      er = arguments[1];
+      if (er instanceof Error) {
+        throw er; // Unhandled 'error' event
+      } else {
+        // At least give some kind of context to the user
+        var err = new Error('Uncaught, unspecified "error" event. (' + er + ')');
+        err.context = er;
+        throw err;
+      }
+    }
   }
 
-  for (; i < l; i += 2) {
-    var code = parseInt(hex.substr(i, 2), 16);
-    str += String.fromCharCode(code);
+  handler = this._events[type];
+
+  if (isUndefined(handler))
+    return false;
+
+  if (isFunction(handler)) {
+    switch (arguments.length) {
+      // fast cases
+      case 1:
+        handler.call(this);
+        break;
+      case 2:
+        handler.call(this, arguments[1]);
+        break;
+      case 3:
+        handler.call(this, arguments[1], arguments[2]);
+        break;
+      // slower
+      default:
+        args = Array.prototype.slice.call(arguments, 1);
+        handler.apply(this, args);
+    }
+  } else if (isObject(handler)) {
+    args = Array.prototype.slice.call(arguments, 1);
+    listeners = handler.slice();
+    len = listeners.length;
+    for (i = 0; i < len; i++)
+      listeners[i].apply(this, args);
   }
 
-  return str;
-}
+  return true;
+};
 
-/**
- * Should be called to get hex representation (prefixed by 0x) of utf8 string
- *
- * @method fromUtf8
- * @param {String} string
- * @param {Number} optional padding
- * @returns {String} hex representation of input string
- */
-function fromUtf8(stringValue) {
-  var str = new Buffer(stringValue, 'utf8');
+EventEmitter.prototype.addListener = function(type, listener) {
+  var m;
 
-  return '0x' + padToEven(str.toString('hex')).replace(/^0+|0+$/g, '');
-}
+  if (!isFunction(listener))
+    throw TypeError('listener must be a function');
 
-/**
- * Should be called to get hex representation (prefixed by 0x) of ascii string
- *
- * @method fromAscii
- * @param {String} string
- * @param {Number} optional padding
- * @returns {String} hex representation of input string
- */
-function fromAscii(stringValue) {
-  var hex = ''; // eslint-disable-line
-  for (var i = 0; i < stringValue.length; i++) {
-    // eslint-disable-line
-    var code = stringValue.charCodeAt(i);
-    var n = code.toString(16);
-    hex += n.length < 2 ? '0' + n : n;
-  }
+  if (!this._events)
+    this._events = {};
 
-  return '0x' + hex;
-}
+  // To avoid recursion in the case that type === "newListener"! Before
+  // adding it to the listeners, first emit "newListener".
+  if (this._events.newListener)
+    this.emit('newListener', type,
+              isFunction(listener.listener) ?
+              listener.listener : listener);
 
-/**
- * getKeys([{a: 1, b: 2}, {a: 3, b: 4}], 'a') => [1, 3]
- *
- * @method getKeys get specific key from inner object array of objects
- * @param {String} params
- * @param {String} key
- * @param {Boolean} allowEmpty
- * @returns {Array} output just a simple array of output keys
- */
-function getKeys(params, key, allowEmpty) {
-  if (!Array.isArray(params)) {
-    throw new Error('[ethjs-util] method getKeys expecting type Array as \'params\' input, got \'' + typeof params + '\'');
+  if (!this._events[type])
+    // Optimize the case of one listener. Don't need the extra array object.
+    this._events[type] = listener;
+  else if (isObject(this._events[type]))
+    // If we've already got an array, just append.
+    this._events[type].push(listener);
+  else
+    // Adding the second element, need to change to array.
+    this._events[type] = [this._events[type], listener];
+
+  // Check for listener leak
+  if (isObject(this._events[type]) && !this._events[type].warned) {
+    if (!isUndefined(this._maxListeners)) {
+      m = this._maxListeners;
+    } else {
+      m = EventEmitter.defaultMaxListeners;
+    }
+
+    if (m && m > 0 && this._events[type].length > m) {
+      this._events[type].warned = true;
+      console.error('(node) warning: possible EventEmitter memory ' +
+                    'leak detected. %d listeners added. ' +
+                    'Use emitter.setMaxListeners() to increase limit.',
+                    this._events[type].length);
+      if (typeof console.trace === 'function') {
+        // not supported in IE 10
+        console.trace();
+      }
+    }
   }
-  if (typeof key !== 'string') {
-    throw new Error('[ethjs-util] method getKeys expecting type String for input \'key\' got \'' + typeof key + '\'.');
+
+  return this;
+};
+
+EventEmitter.prototype.on = EventEmitter.prototype.addListener;
+
+EventEmitter.prototype.once = function(type, listener) {
+  if (!isFunction(listener))
+    throw TypeError('listener must be a function');
+
+  var fired = false;
+
+  function g() {
+    this.removeListener(type, g);
+
+    if (!fired) {
+      fired = true;
+      listener.apply(this, arguments);
+    }
   }
 
-  var result = []; // eslint-disable-line
+  g.listener = listener;
+  this.on(type, g);
 
-  for (var i = 0; i < params.length; i++) {
-    // eslint-disable-line
-    var value = params[i][key]; // eslint-disable-line
-    if (allowEmpty && !value) {
-      value = '';
-    } else if (typeof value !== 'string') {
-      throw new Error('invalid abi');
+  return this;
+};
+
+// emits a 'removeListener' event iff the listener was removed
+EventEmitter.prototype.removeListener = function(type, listener) {
+  var list, position, length, i;
+
+  if (!isFunction(listener))
+    throw TypeError('listener must be a function');
+
+  if (!this._events || !this._events[type])
+    return this;
+
+  list = this._events[type];
+  length = list.length;
+  position = -1;
+
+  if (list === listener ||
+      (isFunction(list.listener) && list.listener === listener)) {
+    delete this._events[type];
+    if (this._events.removeListener)
+      this.emit('removeListener', type, listener);
+
+  } else if (isObject(list)) {
+    for (i = length; i-- > 0;) {
+      if (list[i] === listener ||
+          (list[i].listener && list[i].listener === listener)) {
+        position = i;
+        break;
+      }
     }
-    result.push(value);
+
+    if (position < 0)
+      return this;
+
+    if (list.length === 1) {
+      list.length = 0;
+      delete this._events[type];
+    } else {
+      list.splice(position, 1);
+    }
+
+    if (this._events.removeListener)
+      this.emit('removeListener', type, listener);
   }
 
-  return result;
-}
+  return this;
+};
 
-/**
- * Is the string a hex string.
- *
- * @method check if string is hex string of specific length
- * @param {String} value
- * @param {Number} length
- * @returns {Boolean} output the string is a hex string
- */
-function isHexString(value, length) {
-  if (typeof value !== 'string' || !value.match(/^0x[0-9A-Fa-f]*$/)) {
-    return false;
+EventEmitter.prototype.removeAllListeners = function(type) {
+  var key, listeners;
+
+  if (!this._events)
+    return this;
+
+  // not listening for removeListener, no need to emit
+  if (!this._events.removeListener) {
+    if (arguments.length === 0)
+      this._events = {};
+    else if (this._events[type])
+      delete this._events[type];
+    return this;
   }
 
-  if (length && value.length !== 2 + 2 * length) {
-    return false;
+  // emit removeListener for all listeners on all events
+  if (arguments.length === 0) {
+    for (key in this._events) {
+      if (key === 'removeListener') continue;
+      this.removeAllListeners(key);
+    }
+    this.removeAllListeners('removeListener');
+    this._events = {};
+    return this;
   }
 
-  return true;
-}
+  listeners = this._events[type];
 
-module.exports = {
-  arrayContainsArray: arrayContainsArray,
-  intToBuffer: intToBuffer,
-  getBinarySize: getBinarySize,
-  isHexPrefixed: isHexPrefixed,
-  stripHexPrefix: stripHexPrefix,
-  padToEven: padToEven,
-  intToHex: intToHex,
-  fromAscii: fromAscii,
-  fromUtf8: fromUtf8,
-  toAscii: toAscii,
-  toUtf8: toUtf8,
-  getKeys: getKeys,
-  isHexString: isHexString
+  if (isFunction(listeners)) {
+    this.removeListener(type, listeners);
+  } else if (listeners) {
+    // LIFO order
+    while (listeners.length)
+      this.removeListener(type, listeners[listeners.length - 1]);
+  }
+  delete this._events[type];
+
+  return this;
 };
-}).call(this,require("buffer").Buffer)
-},{"buffer":5,"is-hex-prefixed":64,"strip-hex-prefix":87}],57:[function(require,module,exports){
-var hash = exports;
 
-hash.utils = require('./hash/utils');
-hash.common = require('./hash/common');
-hash.sha = require('./hash/sha');
-hash.ripemd = require('./hash/ripemd');
-hash.hmac = require('./hash/hmac');
+EventEmitter.prototype.listeners = function(type) {
+  var ret;
+  if (!this._events || !this._events[type])
+    ret = [];
+  else if (isFunction(this._events[type]))
+    ret = [this._events[type]];
+  else
+    ret = this._events[type].slice();
+  return ret;
+};
 
-// Proxy hash functions to the main object
-hash.sha1 = hash.sha.sha1;
-hash.sha256 = hash.sha.sha256;
-hash.sha224 = hash.sha.sha224;
-hash.sha384 = hash.sha.sha384;
-hash.sha512 = hash.sha.sha512;
-hash.ripemd160 = hash.ripemd.ripemd160;
+EventEmitter.prototype.listenerCount = function(type) {
+  if (this._events) {
+    var evlistener = this._events[type];
 
-},{"./hash/common":58,"./hash/hmac":59,"./hash/ripemd":60,"./hash/sha":61,"./hash/utils":62}],58:[function(require,module,exports){
-var hash = require('../hash');
-var utils = hash.utils;
-var assert = utils.assert;
+    if (isFunction(evlistener))
+      return 1;
+    else if (evlistener)
+      return evlistener.length;
+  }
+  return 0;
+};
 
-function BlockHash() {
-  this.pending = null;
-  this.pendingTotal = 0;
-  this.blockSize = this.constructor.blockSize;
-  this.outSize = this.constructor.outSize;
-  this.hmacStrength = this.constructor.hmacStrength;
-  this.padLength = this.constructor.padLength / 8;
-  this.endian = 'big';
+EventEmitter.listenerCount = function(emitter, type) {
+  return emitter.listenerCount(type);
+};
 
-  this._delta8 = this.blockSize / 8;
-  this._delta32 = this.blockSize / 32;
+function isFunction(arg) {
+  return typeof arg === 'function';
 }
-exports.BlockHash = BlockHash;
 
-BlockHash.prototype.update = function update(msg, enc) {
-  // Convert message to array, pad it, and join into 32bit blocks
-  msg = utils.toArray(msg, enc);
-  if (!this.pending)
-    this.pending = msg;
-  else
-    this.pending = this.pending.concat(msg);
-  this.pendingTotal += msg.length;
+function isNumber(arg) {
+  return typeof arg === 'number';
+}
 
-  // Enough data, try updating
-  if (this.pending.length >= this._delta8) {
-    msg = this.pending;
+function isObject(arg) {
+  return typeof arg === 'object' && arg !== null;
+}
 
-    // Process pending data in blocks
-    var r = msg.length % this._delta8;
-    this.pending = msg.slice(msg.length - r, msg.length);
-    if (this.pending.length === 0)
-      this.pending = null;
+function isUndefined(arg) {
+  return arg === void 0;
+}
 
-    msg = utils.join32(msg, 0, msg.length - r, this.endian);
-    for (var i = 0; i < msg.length; i += this._delta32)
-      this._update(msg, i, i + this._delta32);
-  }
+},{}],19:[function(require,module,exports){
+(function (Buffer){
+'use strict'
+var Transform = require('stream').Transform
+var inherits = require('inherits')
 
-  return this;
-};
+function HashBase (blockSize) {
+  Transform.call(this)
 
-BlockHash.prototype.digest = function digest(enc) {
-  this.update(this._pad());
-  assert(this.pending === null);
+  this._block = new Buffer(blockSize)
+  this._blockSize = blockSize
+  this._blockOffset = 0
+  this._length = [0, 0, 0, 0]
 
-  return this._digest(enc);
-};
+  this._finalized = false
+}
 
-BlockHash.prototype._pad = function pad() {
-  var len = this.pendingTotal;
-  var bytes = this._delta8;
-  var k = bytes - ((len + this.padLength) % bytes);
-  var res = new Array(k + this.padLength);
-  res[0] = 0x80;
-  for (var i = 1; i < k; i++)
-    res[i] = 0;
+inherits(HashBase, Transform)
 
-  // Append length
-  len <<= 3;
-  if (this.endian === 'big') {
-    for (var t = 8; t < this.padLength; t++)
-      res[i++] = 0;
+HashBase.prototype._transform = function (chunk, encoding, callback) {
+  var error = null
+  try {
+    if (encoding !== 'buffer') chunk = new Buffer(chunk, encoding)
+    this.update(chunk)
+  } catch (err) {
+    error = err
+  }
 
-    res[i++] = 0;
-    res[i++] = 0;
-    res[i++] = 0;
-    res[i++] = 0;
-    res[i++] = (len >>> 24) & 0xff;
-    res[i++] = (len >>> 16) & 0xff;
-    res[i++] = (len >>> 8) & 0xff;
-    res[i++] = len & 0xff;
-  } else {
-    res[i++] = len & 0xff;
-    res[i++] = (len >>> 8) & 0xff;
-    res[i++] = (len >>> 16) & 0xff;
-    res[i++] = (len >>> 24) & 0xff;
-    res[i++] = 0;
-    res[i++] = 0;
-    res[i++] = 0;
-    res[i++] = 0;
+  callback(error)
+}
 
-    for (var t = 8; t < this.padLength; t++)
-      res[i++] = 0;
+HashBase.prototype._flush = function (callback) {
+  var error = null
+  try {
+    this.push(this._digest())
+  } catch (err) {
+    error = err
   }
 
-  return res;
-};
+  callback(error)
+}
 
-},{"../hash":57}],59:[function(require,module,exports){
-var hmac = exports;
+HashBase.prototype.update = function (data, encoding) {
+  if (!Buffer.isBuffer(data) && typeof data !== 'string') throw new TypeError('Data must be a string or a buffer')
+  if (this._finalized) throw new Error('Digest already called')
+  if (!Buffer.isBuffer(data)) data = new Buffer(data, encoding || 'binary')
 
-var hash = require('../hash');
-var utils = hash.utils;
-var assert = utils.assert;
+  // consume data
+  var block = this._block
+  var offset = 0
+  while (this._blockOffset + data.length - offset >= this._blockSize) {
+    for (var i = this._blockOffset; i < this._blockSize;) block[i++] = data[offset++]
+    this._update()
+    this._blockOffset = 0
+  }
+  while (offset < data.length) block[this._blockOffset++] = data[offset++]
 
-function Hmac(hash, key, enc) {
-  if (!(this instanceof Hmac))
-    return new Hmac(hash, key, enc);
-  this.Hash = hash;
-  this.blockSize = hash.blockSize / 8;
-  this.outSize = hash.outSize / 8;
-  this.inner = null;
-  this.outer = null;
+  // update length
+  for (var j = 0, carry = data.length * 8; carry > 0; ++j) {
+    this._length[j] += carry
+    carry = (this._length[j] / 0x0100000000) | 0
+    if (carry > 0) this._length[j] -= 0x0100000000 * carry
+  }
 
-  this._init(utils.toArray(key, enc));
+  return this
 }
-module.exports = Hmac;
-
-Hmac.prototype._init = function init(key) {
-  // Shorten key, if needed
-  if (key.length > this.blockSize)
-    key = new this.Hash().update(key).digest();
-  assert(key.length <= this.blockSize);
 
-  // Add padding to key
-  for (var i = key.length; i < this.blockSize; i++)
-    key.push(0);
+HashBase.prototype._update = function (data) {
+  throw new Error('_update is not implemented')
+}
 
-  for (var i = 0; i < key.length; i++)
-    key[i] ^= 0x36;
-  this.inner = new this.Hash().update(key);
+HashBase.prototype.digest = function (encoding) {
+  if (this._finalized) throw new Error('Digest already called')
+  this._finalized = true
 
-  // 0x36 ^ 0x5c = 0x6a
-  for (var i = 0; i < key.length; i++)
-    key[i] ^= 0x6a;
-  this.outer = new this.Hash().update(key);
-};
+  var digest = this._digest()
+  if (encoding !== undefined) digest = digest.toString(encoding)
+  return digest
+}
 
-Hmac.prototype.update = function update(msg, enc) {
-  this.inner.update(msg, enc);
-  return this;
-};
+HashBase.prototype._digest = function () {
+  throw new Error('_digest is not implemented')
+}
 
-Hmac.prototype.digest = function digest(enc) {
-  this.outer.update(this.inner.digest());
-  return this.outer.digest(enc);
-};
+module.exports = HashBase
 
-},{"../hash":57}],60:[function(require,module,exports){
-var hash = require('../hash');
-var utils = hash.utils;
+}).call(this,require("buffer").Buffer)
+},{"buffer":8,"inherits":21,"stream":49}],20:[function(require,module,exports){
+exports.read = function (buffer, offset, isLE, mLen, nBytes) {
+  var e, m
+  var eLen = nBytes * 8 - mLen - 1
+  var eMax = (1 << eLen) - 1
+  var eBias = eMax >> 1
+  var nBits = -7
+  var i = isLE ? (nBytes - 1) : 0
+  var d = isLE ? -1 : 1
+  var s = buffer[offset + i]
 
-var rotl32 = utils.rotl32;
-var sum32 = utils.sum32;
-var sum32_3 = utils.sum32_3;
-var sum32_4 = utils.sum32_4;
-var BlockHash = hash.common.BlockHash;
+  i += d
 
-function RIPEMD160() {
-  if (!(this instanceof RIPEMD160))
-    return new RIPEMD160();
+  e = s & ((1 << (-nBits)) - 1)
+  s >>= (-nBits)
+  nBits += eLen
+  for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {}
 
-  BlockHash.call(this);
+  m = e & ((1 << (-nBits)) - 1)
+  e >>= (-nBits)
+  nBits += mLen
+  for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {}
 
-  this.h = [ 0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0 ];
-  this.endian = 'little';
+  if (e === 0) {
+    e = 1 - eBias
+  } else if (e === eMax) {
+    return m ? NaN : ((s ? -1 : 1) * Infinity)
+  } else {
+    m = m + Math.pow(2, mLen)
+    e = e - eBias
+  }
+  return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
 }
-utils.inherits(RIPEMD160, BlockHash);
-exports.ripemd160 = RIPEMD160;
 
-RIPEMD160.blockSize = 512;
-RIPEMD160.outSize = 160;
-RIPEMD160.hmacStrength = 192;
-RIPEMD160.padLength = 64;
+exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
+  var e, m, c
+  var eLen = nBytes * 8 - mLen - 1
+  var eMax = (1 << eLen) - 1
+  var eBias = eMax >> 1
+  var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
+  var i = isLE ? 0 : (nBytes - 1)
+  var d = isLE ? 1 : -1
+  var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0
 
-RIPEMD160.prototype._update = function update(msg, start) {
-  var A = this.h[0];
-  var B = this.h[1];
-  var C = this.h[2];
-  var D = this.h[3];
-  var E = this.h[4];
-  var Ah = A;
-  var Bh = B;
-  var Ch = C;
-  var Dh = D;
-  var Eh = E;
-  for (var j = 0; j < 80; j++) {
-    var T = sum32(
-      rotl32(
-        sum32_4(A, f(j, B, C, D), msg[r[j] + start], K(j)),
-        s[j]),
-      E);
-    A = E;
-    E = D;
-    D = rotl32(C, 10);
-    C = B;
-    B = T;
-    T = sum32(
-      rotl32(
-        sum32_4(Ah, f(79 - j, Bh, Ch, Dh), msg[rh[j] + start], Kh(j)),
-        sh[j]),
-      Eh);
-    Ah = Eh;
-    Eh = Dh;
-    Dh = rotl32(Ch, 10);
-    Ch = Bh;
-    Bh = T;
+  value = Math.abs(value)
+
+  if (isNaN(value) || value === Infinity) {
+    m = isNaN(value) ? 1 : 0
+    e = eMax
+  } else {
+    e = Math.floor(Math.log(value) / Math.LN2)
+    if (value * (c = Math.pow(2, -e)) < 1) {
+      e--
+      c *= 2
+    }
+    if (e + eBias >= 1) {
+      value += rt / c
+    } else {
+      value += rt * Math.pow(2, 1 - eBias)
+    }
+    if (value * c >= 2) {
+      e++
+      c /= 2
+    }
+
+    if (e + eBias >= eMax) {
+      m = 0
+      e = eMax
+    } else if (e + eBias >= 1) {
+      m = (value * c - 1) * Math.pow(2, mLen)
+      e = e + eBias
+    } else {
+      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
+      e = 0
+    }
   }
-  T = sum32_3(this.h[1], C, Dh);
-  this.h[1] = sum32_3(this.h[2], D, Eh);
-  this.h[2] = sum32_3(this.h[3], E, Ah);
-  this.h[3] = sum32_3(this.h[4], A, Bh);
-  this.h[4] = sum32_3(this.h[0], B, Ch);
-  this.h[0] = T;
-};
 
-RIPEMD160.prototype._digest = function digest(enc) {
-  if (enc === 'hex')
-    return utils.toHex32(this.h, 'little');
-  else
-    return utils.split32(this.h, 'little');
-};
+  for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}
 
-function f(j, x, y, z) {
-  if (j <= 15)
-    return x ^ y ^ z;
-  else if (j <= 31)
-    return (x & y) | ((~x) & z);
-  else if (j <= 47)
-    return (x | (~y)) ^ z;
-  else if (j <= 63)
-    return (x & z) | (y & (~z));
-  else
-    return x ^ (y | (~z));
-}
+  e = (e << mLen) | m
+  eLen += mLen
+  for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}
 
-function K(j) {
-  if (j <= 15)
-    return 0x00000000;
-  else if (j <= 31)
-    return 0x5a827999;
-  else if (j <= 47)
-    return 0x6ed9eba1;
-  else if (j <= 63)
-    return 0x8f1bbcdc;
-  else
-    return 0xa953fd4e;
+  buffer[offset + i - d] |= s * 128
 }
 
-function Kh(j) {
-  if (j <= 15)
-    return 0x50a28be6;
-  else if (j <= 31)
-    return 0x5c4dd124;
-  else if (j <= 47)
-    return 0x6d703ef3;
-  else if (j <= 63)
-    return 0x7a6d76e9;
-  else
-    return 0x00000000;
+},{}],21:[function(require,module,exports){
+if (typeof Object.create === 'function') {
+  // implementation from standard node.js 'util' module
+  module.exports = function inherits(ctor, superCtor) {
+    ctor.super_ = superCtor
+    ctor.prototype = Object.create(superCtor.prototype, {
+      constructor: {
+        value: ctor,
+        enumerable: false,
+        writable: true,
+        configurable: true
+      }
+    });
+  };
+} else {
+  // old school shim for old browsers
+  module.exports = function inherits(ctor, superCtor) {
+    ctor.super_ = superCtor
+    var TempCtor = function () {}
+    TempCtor.prototype = superCtor.prototype
+    ctor.prototype = new TempCtor()
+    ctor.prototype.constructor = ctor
+  }
 }
 
-var r = [
-  0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
-  7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8,
-  3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12,
-  1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2,
-  4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13
-];
-
-var rh = [
-  5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12,
-  6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2,
-  15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13,
-  8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14,
-  12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11
-];
-
-var s = [
-  11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8,
-  7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12,
-  11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5,
-  11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12,
-  9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6
-];
+},{}],22:[function(require,module,exports){
+/*!
+ * Determine if an object is a Buffer
+ *
+ * @author   Feross Aboukhadijeh <https://feross.org>
+ * @license  MIT
+ */
 
-var sh = [
-  8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6,
-  9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11,
-  9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5,
-  15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8,
-  8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11
-];
+// The _isBuffer check is for Safari 5-7 support, because it's missing
+// Object.prototype.constructor. Remove this eventually
+module.exports = function (obj) {
+  return obj != null && (isBuffer(obj) || isSlowBuffer(obj) || !!obj._isBuffer)
+}
 
-},{"../hash":57}],61:[function(require,module,exports){
-var hash = require('../hash');
-var utils = hash.utils;
-var assert = utils.assert;
+function isBuffer (obj) {
+  return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)
+}
 
-var rotr32 = utils.rotr32;
-var rotl32 = utils.rotl32;
-var sum32 = utils.sum32;
-var sum32_4 = utils.sum32_4;
-var sum32_5 = utils.sum32_5;
-var rotr64_hi = utils.rotr64_hi;
-var rotr64_lo = utils.rotr64_lo;
-var shr64_hi = utils.shr64_hi;
-var shr64_lo = utils.shr64_lo;
-var sum64 = utils.sum64;
-var sum64_hi = utils.sum64_hi;
-var sum64_lo = utils.sum64_lo;
-var sum64_4_hi = utils.sum64_4_hi;
-var sum64_4_lo = utils.sum64_4_lo;
-var sum64_5_hi = utils.sum64_5_hi;
-var sum64_5_lo = utils.sum64_5_lo;
-var BlockHash = hash.common.BlockHash;
+// For Node v0.10 support. Remove this eventually.
+function isSlowBuffer (obj) {
+  return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0))
+}
 
-var sha256_K = [
-  0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
-  0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
-  0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
-  0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
-  0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
-  0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
-  0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
-  0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
-  0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
-  0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
-  0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
-  0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
-  0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
-  0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
-  0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
-  0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
-];
+},{}],23:[function(require,module,exports){
+var toString = {}.toString;
 
-var sha512_K = [
-  0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd,
-  0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc,
-  0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019,
-  0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118,
-  0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe,
-  0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2,
-  0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1,
-  0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694,
-  0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3,
-  0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65,
-  0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483,
-  0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5,
-  0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210,
-  0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4,
-  0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725,
-  0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70,
-  0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926,
-  0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df,
-  0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8,
-  0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b,
-  0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001,
-  0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30,
-  0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910,
-  0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8,
-  0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53,
-  0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8,
-  0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb,
-  0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3,
-  0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60,
-  0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec,
-  0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9,
-  0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b,
-  0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207,
-  0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178,
-  0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6,
-  0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b,
-  0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493,
-  0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c,
-  0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a,
-  0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817
-];
+module.exports = Array.isArray || function (arr) {
+  return toString.call(arr) == '[object Array]';
+};
 
-var sha1_K = [
-  0x5A827999, 0x6ED9EBA1,
-  0x8F1BBCDC, 0xCA62C1D6
-];
+},{}],24:[function(require,module,exports){
+(function (process){
+'use strict';
 
-function SHA256() {
-  if (!(this instanceof SHA256))
-    return new SHA256();
+if (!process.version ||
+    process.version.indexOf('v0.') === 0 ||
+    process.version.indexOf('v1.') === 0 && process.version.indexOf('v1.8.') !== 0) {
+  module.exports = nextTick;
+} else {
+  module.exports = process.nextTick;
+}
 
-  BlockHash.call(this);
-  this.h = [ 0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a,
-             0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19 ];
-  this.k = sha256_K;
-  this.W = new Array(64);
+function nextTick(fn, arg1, arg2, arg3) {
+  if (typeof fn !== 'function') {
+    throw new TypeError('"callback" argument must be a function');
+  }
+  var len = arguments.length;
+  var args, i;
+  switch (len) {
+  case 0:
+  case 1:
+    return process.nextTick(fn);
+  case 2:
+    return process.nextTick(function afterTickOne() {
+      fn.call(null, arg1);
+    });
+  case 3:
+    return process.nextTick(function afterTickTwo() {
+      fn.call(null, arg1, arg2);
+    });
+  case 4:
+    return process.nextTick(function afterTickThree() {
+      fn.call(null, arg1, arg2, arg3);
+    });
+  default:
+    args = new Array(len - 1);
+    i = 0;
+    while (i < args.length) {
+      args[i++] = arguments[i];
+    }
+    return process.nextTick(function afterTick() {
+      fn.apply(null, args);
+    });
+  }
 }
-utils.inherits(SHA256, BlockHash);
-exports.sha256 = SHA256;
 
-SHA256.blockSize = 512;
-SHA256.outSize = 256;
-SHA256.hmacStrength = 192;
-SHA256.padLength = 64;
+}).call(this,require('_process'))
+},{"_process":25}],25:[function(require,module,exports){
+// shim for using process in browser
+var process = module.exports = {};
 
-SHA256.prototype._update = function _update(msg, start) {
-  var W = this.W;
+// cached from whatever global is present so that test runners that stub it
+// don't break things.  But we need to wrap it in a try catch in case it is
+// wrapped in strict mode code which doesn't define any globals.  It's inside a
+// function because try/catches deoptimize in certain engines.
 
-  for (var i = 0; i < 16; i++)
-    W[i] = msg[start + i];
-  for (; i < W.length; i++)
-    W[i] = sum32_4(g1_256(W[i - 2]), W[i - 7], g0_256(W[i - 15]), W[i - 16]);
+var cachedSetTimeout;
+var cachedClearTimeout;
 
-  var a = this.h[0];
-  var b = this.h[1];
-  var c = this.h[2];
-  var d = this.h[3];
-  var e = this.h[4];
-  var f = this.h[5];
-  var g = this.h[6];
-  var h = this.h[7];
+function defaultSetTimout() {
+    throw new Error('setTimeout has not been defined');
+}
+function defaultClearTimeout () {
+    throw new Error('clearTimeout has not been defined');
+}
+(function () {
+    try {
+        if (typeof setTimeout === 'function') {
+            cachedSetTimeout = setTimeout;
+        } else {
+            cachedSetTimeout = defaultSetTimout;
+        }
+    } catch (e) {
+        cachedSetTimeout = defaultSetTimout;
+    }
+    try {
+        if (typeof clearTimeout === 'function') {
+            cachedClearTimeout = clearTimeout;
+        } else {
+            cachedClearTimeout = defaultClearTimeout;
+        }
+    } catch (e) {
+        cachedClearTimeout = defaultClearTimeout;
+    }
+} ())
+function runTimeout(fun) {
+    if (cachedSetTimeout === setTimeout) {
+        //normal enviroments in sane situations
+        return setTimeout(fun, 0);
+    }
+    // if setTimeout wasn't available but was latter defined
+    if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
+        cachedSetTimeout = setTimeout;
+        return setTimeout(fun, 0);
+    }
+    try {
+        // when when somebody has screwed with setTimeout but no I.E. maddness
+        return cachedSetTimeout(fun, 0);
+    } catch(e){
+        try {
+            // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
+            return cachedSetTimeout.call(null, fun, 0);
+        } catch(e){
+            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
+            return cachedSetTimeout.call(this, fun, 0);
+        }
+    }
 
-  assert(this.k.length === W.length);
-  for (var i = 0; i < W.length; i++) {
-    var T1 = sum32_5(h, s1_256(e), ch32(e, f, g), this.k[i], W[i]);
-    var T2 = sum32(s0_256(a), maj32(a, b, c));
-    h = g;
-    g = f;
-    f = e;
-    e = sum32(d, T1);
-    d = c;
-    c = b;
-    b = a;
-    a = sum32(T1, T2);
-  }
 
-  this.h[0] = sum32(this.h[0], a);
-  this.h[1] = sum32(this.h[1], b);
-  this.h[2] = sum32(this.h[2], c);
-  this.h[3] = sum32(this.h[3], d);
-  this.h[4] = sum32(this.h[4], e);
-  this.h[5] = sum32(this.h[5], f);
-  this.h[6] = sum32(this.h[6], g);
-  this.h[7] = sum32(this.h[7], h);
-};
+}
+function runClearTimeout(marker) {
+    if (cachedClearTimeout === clearTimeout) {
+        //normal enviroments in sane situations
+        return clearTimeout(marker);
+    }
+    // if clearTimeout wasn't available but was latter defined
+    if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
+        cachedClearTimeout = clearTimeout;
+        return clearTimeout(marker);
+    }
+    try {
+        // when when somebody has screwed with setTimeout but no I.E. maddness
+        return cachedClearTimeout(marker);
+    } catch (e){
+        try {
+            // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally
+            return cachedClearTimeout.call(null, marker);
+        } catch (e){
+            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
+            // Some versions of I.E. have different rules for clearTimeout vs setTimeout
+            return cachedClearTimeout.call(this, marker);
+        }
+    }
 
-SHA256.prototype._digest = function digest(enc) {
-  if (enc === 'hex')
-    return utils.toHex32(this.h, 'big');
-  else
-    return utils.split32(this.h, 'big');
-};
 
-function SHA224() {
-  if (!(this instanceof SHA224))
-    return new SHA224();
 
-  SHA256.call(this);
-  this.h = [ 0xc1059ed8, 0x367cd507, 0x3070dd17, 0xf70e5939,
-             0xffc00b31, 0x68581511, 0x64f98fa7, 0xbefa4fa4 ];
 }
-utils.inherits(SHA224, SHA256);
-exports.sha224 = SHA224;
+var queue = [];
+var draining = false;
+var currentQueue;
+var queueIndex = -1;
 
-SHA224.blockSize = 512;
-SHA224.outSize = 224;
-SHA224.hmacStrength = 192;
-SHA224.padLength = 64;
+function cleanUpNextTick() {
+    if (!draining || !currentQueue) {
+        return;
+    }
+    draining = false;
+    if (currentQueue.length) {
+        queue = currentQueue.concat(queue);
+    } else {
+        queueIndex = -1;
+    }
+    if (queue.length) {
+        drainQueue();
+    }
+}
 
-SHA224.prototype._digest = function digest(enc) {
-  // Just truncate output
-  if (enc === 'hex')
-    return utils.toHex32(this.h.slice(0, 7), 'big');
-  else
-    return utils.split32(this.h.slice(0, 7), 'big');
-};
+function drainQueue() {
+    if (draining) {
+        return;
+    }
+    var timeout = runTimeout(cleanUpNextTick);
+    draining = true;
 
-function SHA512() {
-  if (!(this instanceof SHA512))
-    return new SHA512();
+    var len = queue.length;
+    while(len) {
+        currentQueue = queue;
+        queue = [];
+        while (++queueIndex < len) {
+            if (currentQueue) {
+                currentQueue[queueIndex].run();
+            }
+        }
+        queueIndex = -1;
+        len = queue.length;
+    }
+    currentQueue = null;
+    draining = false;
+    runClearTimeout(timeout);
+}
 
-  BlockHash.call(this);
-  this.h = [ 0x6a09e667, 0xf3bcc908,
-             0xbb67ae85, 0x84caa73b,
-             0x3c6ef372, 0xfe94f82b,
-             0xa54ff53a, 0x5f1d36f1,
-             0x510e527f, 0xade682d1,
-             0x9b05688c, 0x2b3e6c1f,
-             0x1f83d9ab, 0xfb41bd6b,
-             0x5be0cd19, 0x137e2179 ];
-  this.k = sha512_K;
-  this.W = new Array(160);
+process.nextTick = function (fun) {
+    var args = new Array(arguments.length - 1);
+    if (arguments.length > 1) {
+        for (var i = 1; i < arguments.length; i++) {
+            args[i - 1] = arguments[i];
+        }
+    }
+    queue.push(new Item(fun, args));
+    if (queue.length === 1 && !draining) {
+        runTimeout(drainQueue);
+    }
+};
+
+// v8 likes predictible objects
+function Item(fun, array) {
+    this.fun = fun;
+    this.array = array;
 }
-utils.inherits(SHA512, BlockHash);
-exports.sha512 = SHA512;
+Item.prototype.run = function () {
+    this.fun.apply(null, this.array);
+};
+process.title = 'browser';
+process.browser = true;
+process.env = {};
+process.argv = [];
+process.version = ''; // empty string to avoid regexp issues
+process.versions = {};
 
-SHA512.blockSize = 1024;
-SHA512.outSize = 512;
-SHA512.hmacStrength = 192;
-SHA512.padLength = 128;
+function noop() {}
 
-SHA512.prototype._prepareBlock = function _prepareBlock(msg, start) {
-  var W = this.W;
+process.on = noop;
+process.addListener = noop;
+process.once = noop;
+process.off = noop;
+process.removeListener = noop;
+process.removeAllListeners = noop;
+process.emit = noop;
+process.prependListener = noop;
+process.prependOnceListener = noop;
 
-  // 32 x 32bit words
-  for (var i = 0; i < 32; i++)
-    W[i] = msg[start + i];
-  for (; i < W.length; i += 2) {
-    var c0_hi = g1_512_hi(W[i - 4], W[i - 3]);  // i - 2
-    var c0_lo = g1_512_lo(W[i - 4], W[i - 3]);
-    var c1_hi = W[i - 14];  // i - 7
-    var c1_lo = W[i - 13];
-    var c2_hi = g0_512_hi(W[i - 30], W[i - 29]);  // i - 15
-    var c2_lo = g0_512_lo(W[i - 30], W[i - 29]);
-    var c3_hi = W[i - 32];  // i - 16
-    var c3_lo = W[i - 31];
+process.listeners = function (name) { return [] }
 
-    W[i] = sum64_4_hi(c0_hi, c0_lo,
-                      c1_hi, c1_lo,
-                      c2_hi, c2_lo,
-                      c3_hi, c3_lo);
-    W[i + 1] = sum64_4_lo(c0_hi, c0_lo,
-                          c1_hi, c1_lo,
-                          c2_hi, c2_lo,
-                          c3_hi, c3_lo);
-  }
+process.binding = function (name) {
+    throw new Error('process.binding is not supported');
 };
 
-SHA512.prototype._update = function _update(msg, start) {
-  this._prepareBlock(msg, start);
+process.cwd = function () { return '/' };
+process.chdir = function (dir) {
+    throw new Error('process.chdir is not supported');
+};
+process.umask = function() { return 0; };
 
-  var W = this.W;
+},{}],26:[function(require,module,exports){
+module.exports = require('./lib/_stream_duplex.js');
 
-  var ah = this.h[0];
-  var al = this.h[1];
-  var bh = this.h[2];
-  var bl = this.h[3];
-  var ch = this.h[4];
-  var cl = this.h[5];
-  var dh = this.h[6];
-  var dl = this.h[7];
-  var eh = this.h[8];
-  var el = this.h[9];
-  var fh = this.h[10];
-  var fl = this.h[11];
-  var gh = this.h[12];
-  var gl = this.h[13];
-  var hh = this.h[14];
-  var hl = this.h[15];
+},{"./lib/_stream_duplex.js":27}],27:[function(require,module,exports){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-  assert(this.k.length === W.length);
-  for (var i = 0; i < W.length; i += 2) {
-    var c0_hi = hh;
-    var c0_lo = hl;
-    var c1_hi = s1_512_hi(eh, el);
-    var c1_lo = s1_512_lo(eh, el);
-    var c2_hi = ch64_hi(eh, el, fh, fl, gh, gl);
-    var c2_lo = ch64_lo(eh, el, fh, fl, gh, gl);
-    var c3_hi = this.k[i];
-    var c3_lo = this.k[i + 1];
-    var c4_hi = W[i];
-    var c4_lo = W[i + 1];
+// a duplex stream is just a stream that is both readable and writable.
+// Since JS doesn't have multiple prototypal inheritance, this class
+// prototypally inherits from Readable, and then parasitically from
+// Writable.
 
-    var T1_hi = sum64_5_hi(c0_hi, c0_lo,
-                           c1_hi, c1_lo,
-                           c2_hi, c2_lo,
-                           c3_hi, c3_lo,
-                           c4_hi, c4_lo);
-    var T1_lo = sum64_5_lo(c0_hi, c0_lo,
-                           c1_hi, c1_lo,
-                           c2_hi, c2_lo,
-                           c3_hi, c3_lo,
-                           c4_hi, c4_lo);
+'use strict';
 
-    var c0_hi = s0_512_hi(ah, al);
-    var c0_lo = s0_512_lo(ah, al);
-    var c1_hi = maj64_hi(ah, al, bh, bl, ch, cl);
-    var c1_lo = maj64_lo(ah, al, bh, bl, ch, cl);
+/*<replacement>*/
 
-    var T2_hi = sum64_hi(c0_hi, c0_lo, c1_hi, c1_lo);
-    var T2_lo = sum64_lo(c0_hi, c0_lo, c1_hi, c1_lo);
+var processNextTick = require('process-nextick-args');
+/*</replacement>*/
 
-    hh = gh;
-    hl = gl;
+/*<replacement>*/
+var objectKeys = Object.keys || function (obj) {
+  var keys = [];
+  for (var key in obj) {
+    keys.push(key);
+  }return keys;
+};
+/*</replacement>*/
 
-    gh = fh;
-    gl = fl;
+module.exports = Duplex;
 
-    fh = eh;
-    fl = el;
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
 
-    eh = sum64_hi(dh, dl, T1_hi, T1_lo);
-    el = sum64_lo(dl, dl, T1_hi, T1_lo);
+var Readable = require('./_stream_readable');
+var Writable = require('./_stream_writable');
 
-    dh = ch;
-    dl = cl;
+util.inherits(Duplex, Readable);
 
-    ch = bh;
-    cl = bl;
+var keys = objectKeys(Writable.prototype);
+for (var v = 0; v < keys.length; v++) {
+  var method = keys[v];
+  if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method];
+}
 
-    bh = ah;
-    bl = al;
+function Duplex(options) {
+  if (!(this instanceof Duplex)) return new Duplex(options);
 
-    ah = sum64_hi(T1_hi, T1_lo, T2_hi, T2_lo);
-    al = sum64_lo(T1_hi, T1_lo, T2_hi, T2_lo);
-  }
+  Readable.call(this, options);
+  Writable.call(this, options);
 
-  sum64(this.h, 0, ah, al);
-  sum64(this.h, 2, bh, bl);
-  sum64(this.h, 4, ch, cl);
-  sum64(this.h, 6, dh, dl);
-  sum64(this.h, 8, eh, el);
-  sum64(this.h, 10, fh, fl);
-  sum64(this.h, 12, gh, gl);
-  sum64(this.h, 14, hh, hl);
-};
+  if (options && options.readable === false) this.readable = false;
 
-SHA512.prototype._digest = function digest(enc) {
-  if (enc === 'hex')
-    return utils.toHex32(this.h, 'big');
-  else
-    return utils.split32(this.h, 'big');
-};
+  if (options && options.writable === false) this.writable = false;
 
-function SHA384() {
-  if (!(this instanceof SHA384))
-    return new SHA384();
+  this.allowHalfOpen = true;
+  if (options && options.allowHalfOpen === false) this.allowHalfOpen = false;
 
-  SHA512.call(this);
-  this.h = [ 0xcbbb9d5d, 0xc1059ed8,
-             0x629a292a, 0x367cd507,
-             0x9159015a, 0x3070dd17,
-             0x152fecd8, 0xf70e5939,
-             0x67332667, 0xffc00b31,
-             0x8eb44a87, 0x68581511,
-             0xdb0c2e0d, 0x64f98fa7,
-             0x47b5481d, 0xbefa4fa4 ];
+  this.once('end', onend);
 }
-utils.inherits(SHA384, SHA512);
-exports.sha384 = SHA384;
 
-SHA384.blockSize = 1024;
-SHA384.outSize = 384;
-SHA384.hmacStrength = 192;
-SHA384.padLength = 128;
+// the no-half-open enforcer
+function onend() {
+  // if we allow half-open state, or if the writable side ended,
+  // then we're ok.
+  if (this.allowHalfOpen || this._writableState.ended) return;
 
-SHA384.prototype._digest = function digest(enc) {
-  if (enc === 'hex')
-    return utils.toHex32(this.h.slice(0, 12), 'big');
-  else
-    return utils.split32(this.h.slice(0, 12), 'big');
-};
+  // no more data can be written.
+  // But allow more writes to happen in this tick.
+  processNextTick(onEndNT, this);
+}
 
-function SHA1() {
-  if (!(this instanceof SHA1))
-    return new SHA1();
+function onEndNT(self) {
+  self.end();
+}
+
+Object.defineProperty(Duplex.prototype, 'destroyed', {
+  get: function () {
+    if (this._readableState === undefined || this._writableState === undefined) {
+      return false;
+    }
+    return this._readableState.destroyed && this._writableState.destroyed;
+  },
+  set: function (value) {
+    // we ignore the value if the stream
+    // has not been initialized yet
+    if (this._readableState === undefined || this._writableState === undefined) {
+      return;
+    }
+
+    // backward compatibility, the user is explicitly
+    // managing destroyed
+    this._readableState.destroyed = value;
+    this._writableState.destroyed = value;
+  }
+});
+
+Duplex.prototype._destroy = function (err, cb) {
+  this.push(null);
+  this.end();
 
-  BlockHash.call(this);
-  this.h = [ 0x67452301, 0xefcdab89, 0x98badcfe,
-             0x10325476, 0xc3d2e1f0 ];
-  this.W = new Array(80);
+  processNextTick(cb, err);
+};
+
+function forEach(xs, f) {
+  for (var i = 0, l = xs.length; i < l; i++) {
+    f(xs[i], i);
+  }
 }
+},{"./_stream_readable":29,"./_stream_writable":31,"core-util-is":14,"inherits":21,"process-nextick-args":24}],28:[function(require,module,exports){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-utils.inherits(SHA1, BlockHash);
-exports.sha1 = SHA1;
+// a passthrough stream.
+// basically just the most minimal sort of Transform stream.
+// Every written chunk gets output as-is.
 
-SHA1.blockSize = 512;
-SHA1.outSize = 160;
-SHA1.hmacStrength = 80;
-SHA1.padLength = 64;
+'use strict';
 
-SHA1.prototype._update = function _update(msg, start) {
-  var W = this.W;
+module.exports = PassThrough;
 
-  for (var i = 0; i < 16; i++)
-    W[i] = msg[start + i];
+var Transform = require('./_stream_transform');
 
-  for(; i < W.length; i++)
-    W[i] = rotl32(W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16], 1);
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
 
-  var a = this.h[0];
-  var b = this.h[1];
-  var c = this.h[2];
-  var d = this.h[3];
-  var e = this.h[4];
+util.inherits(PassThrough, Transform);
 
-  for (var i = 0; i < W.length; i++) {
-    var s = ~~(i / 20);
-    var t = sum32_5(rotl32(a, 5), ft_1(s, b, c, d), e, W[i], sha1_K[s]);
-    e = d;
-    d = c;
-    c = rotl32(b, 30);
-    b = a;
-    a = t;
-  }
+function PassThrough(options) {
+  if (!(this instanceof PassThrough)) return new PassThrough(options);
 
-  this.h[0] = sum32(this.h[0], a);
-  this.h[1] = sum32(this.h[1], b);
-  this.h[2] = sum32(this.h[2], c);
-  this.h[3] = sum32(this.h[3], d);
-  this.h[4] = sum32(this.h[4], e);
-};
+  Transform.call(this, options);
+}
 
-SHA1.prototype._digest = function digest(enc) {
-  if (enc === 'hex')
-    return utils.toHex32(this.h, 'big');
-  else
-    return utils.split32(this.h, 'big');
+PassThrough.prototype._transform = function (chunk, encoding, cb) {
+  cb(null, chunk);
 };
+},{"./_stream_transform":30,"core-util-is":14,"inherits":21}],29:[function(require,module,exports){
+(function (process,global){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-function ch32(x, y, z) {
-  return (x & y) ^ ((~x) & z);
-}
+'use strict';
 
-function maj32(x, y, z) {
-  return (x & y) ^ (x & z) ^ (y & z);
-}
+/*<replacement>*/
 
-function p32(x, y, z) {
-  return x ^ y ^ z;
-}
+var processNextTick = require('process-nextick-args');
+/*</replacement>*/
 
-function s0_256(x) {
-  return rotr32(x, 2) ^ rotr32(x, 13) ^ rotr32(x, 22);
-}
+module.exports = Readable;
 
-function s1_256(x) {
-  return rotr32(x, 6) ^ rotr32(x, 11) ^ rotr32(x, 25);
-}
+/*<replacement>*/
+var isArray = require('isarray');
+/*</replacement>*/
 
-function g0_256(x) {
-  return rotr32(x, 7) ^ rotr32(x, 18) ^ (x >>> 3);
-}
+/*<replacement>*/
+var Duplex;
+/*</replacement>*/
 
-function g1_256(x) {
-  return rotr32(x, 17) ^ rotr32(x, 19) ^ (x >>> 10);
-}
+Readable.ReadableState = ReadableState;
 
-function ft_1(s, x, y, z) {
-  if (s === 0)
-    return ch32(x, y, z);
-  if (s === 1 || s === 3)
-    return p32(x, y, z);
-  if (s === 2)
-    return maj32(x, y, z);
-}
+/*<replacement>*/
+var EE = require('events').EventEmitter;
 
-function ch64_hi(xh, xl, yh, yl, zh, zl) {
-  var r = (xh & yh) ^ ((~xh) & zh);
-  if (r < 0)
-    r += 0x100000000;
-  return r;
-}
+var EElistenerCount = function (emitter, type) {
+  return emitter.listeners(type).length;
+};
+/*</replacement>*/
 
-function ch64_lo(xh, xl, yh, yl, zh, zl) {
-  var r = (xl & yl) ^ ((~xl) & zl);
-  if (r < 0)
-    r += 0x100000000;
-  return r;
-}
+/*<replacement>*/
+var Stream = require('./internal/streams/stream');
+/*</replacement>*/
 
-function maj64_hi(xh, xl, yh, yl, zh, zl) {
-  var r = (xh & yh) ^ (xh & zh) ^ (yh & zh);
-  if (r < 0)
-    r += 0x100000000;
-  return r;
+// TODO(bmeurer): Change this back to const once hole checks are
+// properly optimized away early in Ignition+TurboFan.
+/*<replacement>*/
+var Buffer = require('safe-buffer').Buffer;
+var OurUint8Array = global.Uint8Array || function () {};
+function _uint8ArrayToBuffer(chunk) {
+  return Buffer.from(chunk);
 }
-
-function maj64_lo(xh, xl, yh, yl, zh, zl) {
-  var r = (xl & yl) ^ (xl & zl) ^ (yl & zl);
-  if (r < 0)
-    r += 0x100000000;
-  return r;
+function _isUint8Array(obj) {
+  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
 }
+/*</replacement>*/
 
-function s0_512_hi(xh, xl) {
-  var c0_hi = rotr64_hi(xh, xl, 28);
-  var c1_hi = rotr64_hi(xl, xh, 2);  // 34
-  var c2_hi = rotr64_hi(xl, xh, 7);  // 39
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
 
-  var r = c0_hi ^ c1_hi ^ c2_hi;
-  if (r < 0)
-    r += 0x100000000;
-  return r;
+/*<replacement>*/
+var debugUtil = require('util');
+var debug = void 0;
+if (debugUtil && debugUtil.debuglog) {
+  debug = debugUtil.debuglog('stream');
+} else {
+  debug = function () {};
 }
+/*</replacement>*/
 
-function s0_512_lo(xh, xl) {
-  var c0_lo = rotr64_lo(xh, xl, 28);
-  var c1_lo = rotr64_lo(xl, xh, 2);  // 34
-  var c2_lo = rotr64_lo(xl, xh, 7);  // 39
+var BufferList = require('./internal/streams/BufferList');
+var destroyImpl = require('./internal/streams/destroy');
+var StringDecoder;
 
-  var r = c0_lo ^ c1_lo ^ c2_lo;
-  if (r < 0)
-    r += 0x100000000;
-  return r;
-}
+util.inherits(Readable, Stream);
 
-function s1_512_hi(xh, xl) {
-  var c0_hi = rotr64_hi(xh, xl, 14);
-  var c1_hi = rotr64_hi(xh, xl, 18);
-  var c2_hi = rotr64_hi(xl, xh, 9);  // 41
+var kProxyEvents = ['error', 'close', 'destroy', 'pause', 'resume'];
 
-  var r = c0_hi ^ c1_hi ^ c2_hi;
-  if (r < 0)
-    r += 0x100000000;
-  return r;
+function prependListener(emitter, event, fn) {
+  // Sadly this is not cacheable as some libraries bundle their own
+  // event emitter implementation with them.
+  if (typeof emitter.prependListener === 'function') {
+    return emitter.prependListener(event, fn);
+  } else {
+    // This is a hack to make sure that our error handler is attached before any
+    // userland ones.  NEVER DO THIS. This is here only because this code needs
+    // to continue to work with older versions of Node.js that do not include
+    // the prependListener() method. The goal is to eventually remove this hack.
+    if (!emitter._events || !emitter._events[event]) emitter.on(event, fn);else if (isArray(emitter._events[event])) emitter._events[event].unshift(fn);else emitter._events[event] = [fn, emitter._events[event]];
+  }
 }
 
-function s1_512_lo(xh, xl) {
-  var c0_lo = rotr64_lo(xh, xl, 14);
-  var c1_lo = rotr64_lo(xh, xl, 18);
-  var c2_lo = rotr64_lo(xl, xh, 9);  // 41
+function ReadableState(options, stream) {
+  Duplex = Duplex || require('./_stream_duplex');
 
-  var r = c0_lo ^ c1_lo ^ c2_lo;
-  if (r < 0)
-    r += 0x100000000;
-  return r;
-}
+  options = options || {};
 
-function g0_512_hi(xh, xl) {
-  var c0_hi = rotr64_hi(xh, xl, 1);
-  var c1_hi = rotr64_hi(xh, xl, 8);
-  var c2_hi = shr64_hi(xh, xl, 7);
+  // object stream flag. Used to make read(n) ignore n and to
+  // make all the buffer merging and length checks go away
+  this.objectMode = !!options.objectMode;
 
-  var r = c0_hi ^ c1_hi ^ c2_hi;
-  if (r < 0)
-    r += 0x100000000;
-  return r;
-}
+  if (stream instanceof Duplex) this.objectMode = this.objectMode || !!options.readableObjectMode;
 
-function g0_512_lo(xh, xl) {
-  var c0_lo = rotr64_lo(xh, xl, 1);
-  var c1_lo = rotr64_lo(xh, xl, 8);
-  var c2_lo = shr64_lo(xh, xl, 7);
+  // the point at which it stops calling _read() to fill the buffer
+  // Note: 0 is a valid value, means "don't call _read preemptively ever"
+  var hwm = options.highWaterMark;
+  var defaultHwm = this.objectMode ? 16 : 16 * 1024;
+  this.highWaterMark = hwm || hwm === 0 ? hwm : defaultHwm;
 
-  var r = c0_lo ^ c1_lo ^ c2_lo;
-  if (r < 0)
-    r += 0x100000000;
-  return r;
-}
+  // cast to ints.
+  this.highWaterMark = Math.floor(this.highWaterMark);
 
-function g1_512_hi(xh, xl) {
-  var c0_hi = rotr64_hi(xh, xl, 19);
-  var c1_hi = rotr64_hi(xl, xh, 29);  // 61
-  var c2_hi = shr64_hi(xh, xl, 6);
+  // A linked list is used to store data chunks instead of an array because the
+  // linked list can remove elements from the beginning faster than
+  // array.shift()
+  this.buffer = new BufferList();
+  this.length = 0;
+  this.pipes = null;
+  this.pipesCount = 0;
+  this.flowing = null;
+  this.ended = false;
+  this.endEmitted = false;
+  this.reading = false;
 
-  var r = c0_hi ^ c1_hi ^ c2_hi;
-  if (r < 0)
-    r += 0x100000000;
-  return r;
-}
+  // a flag to be able to tell if the event 'readable'/'data' is emitted
+  // immediately, or on a later tick.  We set this to true at first, because
+  // any actions that shouldn't happen until "later" should generally also
+  // not happen before the first read call.
+  this.sync = true;
 
-function g1_512_lo(xh, xl) {
-  var c0_lo = rotr64_lo(xh, xl, 19);
-  var c1_lo = rotr64_lo(xl, xh, 29);  // 61
-  var c2_lo = shr64_lo(xh, xl, 6);
+  // whenever we return null, then we set a flag to say
+  // that we're awaiting a 'readable' event emission.
+  this.needReadable = false;
+  this.emittedReadable = false;
+  this.readableListening = false;
+  this.resumeScheduled = false;
 
-  var r = c0_lo ^ c1_lo ^ c2_lo;
-  if (r < 0)
-    r += 0x100000000;
-  return r;
-}
+  // has it been destroyed
+  this.destroyed = false;
 
-},{"../hash":57}],62:[function(require,module,exports){
-var utils = exports;
-var inherits = require('inherits');
+  // Crypto is kind of old and crusty.  Historically, its default string
+  // encoding is 'binary' so we have to make this configurable.
+  // Everything else in the universe uses 'utf8', though.
+  this.defaultEncoding = options.defaultEncoding || 'utf8';
 
-function toArray(msg, enc) {
-  if (Array.isArray(msg))
-    return msg.slice();
-  if (!msg)
-    return [];
-  var res = [];
-  if (typeof msg === 'string') {
-    if (!enc) {
-      for (var i = 0; i < msg.length; i++) {
-        var c = msg.charCodeAt(i);
-        var hi = c >> 8;
-        var lo = c & 0xff;
-        if (hi)
-          res.push(hi, lo);
-        else
-          res.push(lo);
-      }
-    } else if (enc === 'hex') {
-      msg = msg.replace(/[^a-z0-9]+/ig, '');
-      if (msg.length % 2 !== 0)
-        msg = '0' + msg;
-      for (var i = 0; i < msg.length; i += 2)
-        res.push(parseInt(msg[i] + msg[i + 1], 16));
-    }
-  } else {
-    for (var i = 0; i < msg.length; i++)
-      res[i] = msg[i] | 0;
+  // the number of writers that are awaiting a drain event in .pipe()s
+  this.awaitDrain = 0;
+
+  // if true, a maybeReadMore has been scheduled
+  this.readingMore = false;
+
+  this.decoder = null;
+  this.encoding = null;
+  if (options.encoding) {
+    if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
+    this.decoder = new StringDecoder(options.encoding);
+    this.encoding = options.encoding;
   }
-  return res;
 }
-utils.toArray = toArray;
 
-function toHex(msg) {
-  var res = '';
-  for (var i = 0; i < msg.length; i++)
-    res += zero2(msg[i].toString(16));
-  return res;
-}
-utils.toHex = toHex;
+function Readable(options) {
+  Duplex = Duplex || require('./_stream_duplex');
 
-function htonl(w) {
-  var res = (w >>> 24) |
-            ((w >>> 8) & 0xff00) |
-            ((w << 8) & 0xff0000) |
-            ((w & 0xff) << 24);
-  return res >>> 0;
-}
-utils.htonl = htonl;
+  if (!(this instanceof Readable)) return new Readable(options);
 
-function toHex32(msg, endian) {
-  var res = '';
-  for (var i = 0; i < msg.length; i++) {
-    var w = msg[i];
-    if (endian === 'little')
-      w = htonl(w);
-    res += zero8(w.toString(16));
-  }
-  return res;
-}
-utils.toHex32 = toHex32;
+  this._readableState = new ReadableState(options, this);
 
-function zero2(word) {
-  if (word.length === 1)
-    return '0' + word;
-  else
-    return word;
-}
-utils.zero2 = zero2;
+  // legacy
+  this.readable = true;
 
-function zero8(word) {
-  if (word.length === 7)
-    return '0' + word;
-  else if (word.length === 6)
-    return '00' + word;
-  else if (word.length === 5)
-    return '000' + word;
-  else if (word.length === 4)
-    return '0000' + word;
-  else if (word.length === 3)
-    return '00000' + word;
-  else if (word.length === 2)
-    return '000000' + word;
-  else if (word.length === 1)
-    return '0000000' + word;
-  else
-    return word;
-}
-utils.zero8 = zero8;
+  if (options) {
+    if (typeof options.read === 'function') this._read = options.read;
 
-function join32(msg, start, end, endian) {
-  var len = end - start;
-  assert(len % 4 === 0);
-  var res = new Array(len / 4);
-  for (var i = 0, k = start; i < res.length; i++, k += 4) {
-    var w;
-    if (endian === 'big')
-      w = (msg[k] << 24) | (msg[k + 1] << 16) | (msg[k + 2] << 8) | msg[k + 3];
-    else
-      w = (msg[k + 3] << 24) | (msg[k + 2] << 16) | (msg[k + 1] << 8) | msg[k];
-    res[i] = w >>> 0;
+    if (typeof options.destroy === 'function') this._destroy = options.destroy;
   }
-  return res;
+
+  Stream.call(this);
 }
-utils.join32 = join32;
 
-function split32(msg, endian) {
-  var res = new Array(msg.length * 4);
-  for (var i = 0, k = 0; i < msg.length; i++, k += 4) {
-    var m = msg[i];
-    if (endian === 'big') {
-      res[k] = m >>> 24;
-      res[k + 1] = (m >>> 16) & 0xff;
-      res[k + 2] = (m >>> 8) & 0xff;
-      res[k + 3] = m & 0xff;
-    } else {
-      res[k + 3] = m >>> 24;
-      res[k + 2] = (m >>> 16) & 0xff;
-      res[k + 1] = (m >>> 8) & 0xff;
-      res[k] = m & 0xff;
+Object.defineProperty(Readable.prototype, 'destroyed', {
+  get: function () {
+    if (this._readableState === undefined) {
+      return false;
     }
+    return this._readableState.destroyed;
+  },
+  set: function (value) {
+    // we ignore the value if the stream
+    // has not been initialized yet
+    if (!this._readableState) {
+      return;
+    }
+
+    // backward compatibility, the user is explicitly
+    // managing destroyed
+    this._readableState.destroyed = value;
   }
-  return res;
-}
-utils.split32 = split32;
+});
 
-function rotr32(w, b) {
-  return (w >>> b) | (w << (32 - b));
-}
-utils.rotr32 = rotr32;
+Readable.prototype.destroy = destroyImpl.destroy;
+Readable.prototype._undestroy = destroyImpl.undestroy;
+Readable.prototype._destroy = function (err, cb) {
+  this.push(null);
+  cb(err);
+};
 
-function rotl32(w, b) {
-  return (w << b) | (w >>> (32 - b));
-}
-utils.rotl32 = rotl32;
+// Manually shove something into the read() buffer.
+// This returns true if the highWaterMark has not been hit yet,
+// similar to how Writable.write() returns true if you should
+// write() some more.
+Readable.prototype.push = function (chunk, encoding) {
+  var state = this._readableState;
+  var skipChunkCheck;
+
+  if (!state.objectMode) {
+    if (typeof chunk === 'string') {
+      encoding = encoding || state.defaultEncoding;
+      if (encoding !== state.encoding) {
+        chunk = Buffer.from(chunk, encoding);
+        encoding = '';
+      }
+      skipChunkCheck = true;
+    }
+  } else {
+    skipChunkCheck = true;
+  }
 
-function sum32(a, b) {
-  return (a + b) >>> 0;
-}
-utils.sum32 = sum32;
+  return readableAddChunk(this, chunk, encoding, false, skipChunkCheck);
+};
 
-function sum32_3(a, b, c) {
-  return (a + b + c) >>> 0;
-}
-utils.sum32_3 = sum32_3;
+// Unshift should *always* be something directly out of read()
+Readable.prototype.unshift = function (chunk) {
+  return readableAddChunk(this, chunk, null, true, false);
+};
 
-function sum32_4(a, b, c, d) {
-  return (a + b + c + d) >>> 0;
-}
-utils.sum32_4 = sum32_4;
+function readableAddChunk(stream, chunk, encoding, addToFront, skipChunkCheck) {
+  var state = stream._readableState;
+  if (chunk === null) {
+    state.reading = false;
+    onEofChunk(stream, state);
+  } else {
+    var er;
+    if (!skipChunkCheck) er = chunkInvalid(state, chunk);
+    if (er) {
+      stream.emit('error', er);
+    } else if (state.objectMode || chunk && chunk.length > 0) {
+      if (typeof chunk !== 'string' && !state.objectMode && Object.getPrototypeOf(chunk) !== Buffer.prototype) {
+        chunk = _uint8ArrayToBuffer(chunk);
+      }
 
-function sum32_5(a, b, c, d, e) {
-  return (a + b + c + d + e) >>> 0;
-}
-utils.sum32_5 = sum32_5;
+      if (addToFront) {
+        if (state.endEmitted) stream.emit('error', new Error('stream.unshift() after end event'));else addChunk(stream, state, chunk, true);
+      } else if (state.ended) {
+        stream.emit('error', new Error('stream.push() after EOF'));
+      } else {
+        state.reading = false;
+        if (state.decoder && !encoding) {
+          chunk = state.decoder.write(chunk);
+          if (state.objectMode || chunk.length !== 0) addChunk(stream, state, chunk, false);else maybeReadMore(stream, state);
+        } else {
+          addChunk(stream, state, chunk, false);
+        }
+      }
+    } else if (!addToFront) {
+      state.reading = false;
+    }
+  }
 
-function assert(cond, msg) {
-  if (!cond)
-    throw new Error(msg || 'Assertion failed');
+  return needMoreData(state);
 }
-utils.assert = assert;
 
-utils.inherits = inherits;
+function addChunk(stream, state, chunk, addToFront) {
+  if (state.flowing && state.length === 0 && !state.sync) {
+    stream.emit('data', chunk);
+    stream.read(0);
+  } else {
+    // update the buffer info.
+    state.length += state.objectMode ? 1 : chunk.length;
+    if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk);
 
-function sum64(buf, pos, ah, al) {
-  var bh = buf[pos];
-  var bl = buf[pos + 1];
+    if (state.needReadable) emitReadable(stream);
+  }
+  maybeReadMore(stream, state);
+}
 
-  var lo = (al + bl) >>> 0;
-  var hi = (lo < al ? 1 : 0) + ah + bh;
-  buf[pos] = hi >>> 0;
-  buf[pos + 1] = lo;
+function chunkInvalid(state, chunk) {
+  var er;
+  if (!_isUint8Array(chunk) && typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
+    er = new TypeError('Invalid non-string/buffer chunk');
+  }
+  return er;
 }
-exports.sum64 = sum64;
 
-function sum64_hi(ah, al, bh, bl) {
-  var lo = (al + bl) >>> 0;
-  var hi = (lo < al ? 1 : 0) + ah + bh;
-  return hi >>> 0;
-};
-exports.sum64_hi = sum64_hi;
+// if it's past the high water mark, we can push in some more.
+// Also, if we have no data yet, we can stand some
+// more bytes.  This is to work around cases where hwm=0,
+// such as the repl.  Also, if the push() triggered a
+// readable event, and the user called read(largeNumber) such that
+// needReadable was set, then we ought to push more, so that another
+// 'readable' event will be triggered.
+function needMoreData(state) {
+  return !state.ended && (state.needReadable || state.length < state.highWaterMark || state.length === 0);
+}
 
-function sum64_lo(ah, al, bh, bl) {
-  var lo = al + bl;
-  return lo >>> 0;
+Readable.prototype.isPaused = function () {
+  return this._readableState.flowing === false;
 };
-exports.sum64_lo = sum64_lo;
-
-function sum64_4_hi(ah, al, bh, bl, ch, cl, dh, dl) {
-  var carry = 0;
-  var lo = al;
-  lo = (lo + bl) >>> 0;
-  carry += lo < al ? 1 : 0;
-  lo = (lo + cl) >>> 0;
-  carry += lo < cl ? 1 : 0;
-  lo = (lo + dl) >>> 0;
-  carry += lo < dl ? 1 : 0;
 
-  var hi = ah + bh + ch + dh + carry;
-  return hi >>> 0;
+// backwards compatibility.
+Readable.prototype.setEncoding = function (enc) {
+  if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
+  this._readableState.decoder = new StringDecoder(enc);
+  this._readableState.encoding = enc;
+  return this;
 };
-exports.sum64_4_hi = sum64_4_hi;
 
-function sum64_4_lo(ah, al, bh, bl, ch, cl, dh, dl) {
-  var lo = al + bl + cl + dl;
-  return lo >>> 0;
-};
-exports.sum64_4_lo = sum64_4_lo;
+// Don't raise the hwm > 8MB
+var MAX_HWM = 0x800000;
+function computeNewHighWaterMark(n) {
+  if (n >= MAX_HWM) {
+    n = MAX_HWM;
+  } else {
+    // Get the next highest power of 2 to prevent increasing hwm excessively in
+    // tiny amounts
+    n--;
+    n |= n >>> 1;
+    n |= n >>> 2;
+    n |= n >>> 4;
+    n |= n >>> 8;
+    n |= n >>> 16;
+    n++;
+  }
+  return n;
+}
 
-function sum64_5_hi(ah, al, bh, bl, ch, cl, dh, dl, eh, el) {
-  var carry = 0;
-  var lo = al;
-  lo = (lo + bl) >>> 0;
-  carry += lo < al ? 1 : 0;
-  lo = (lo + cl) >>> 0;
-  carry += lo < cl ? 1 : 0;
-  lo = (lo + dl) >>> 0;
-  carry += lo < dl ? 1 : 0;
-  lo = (lo + el) >>> 0;
-  carry += lo < el ? 1 : 0;
+// This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+function howMuchToRead(n, state) {
+  if (n <= 0 || state.length === 0 && state.ended) return 0;
+  if (state.objectMode) return 1;
+  if (n !== n) {
+    // Only flow one buffer at a time
+    if (state.flowing && state.length) return state.buffer.head.data.length;else return state.length;
+  }
+  // If we're asking for more than the current hwm, then raise the hwm.
+  if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n);
+  if (n <= state.length) return n;
+  // Don't have enough
+  if (!state.ended) {
+    state.needReadable = true;
+    return 0;
+  }
+  return state.length;
+}
 
-  var hi = ah + bh + ch + dh + eh + carry;
-  return hi >>> 0;
-};
-exports.sum64_5_hi = sum64_5_hi;
+// you can override either this method, or the async _read(n) below.
+Readable.prototype.read = function (n) {
+  debug('read', n);
+  n = parseInt(n, 10);
+  var state = this._readableState;
+  var nOrig = n;
 
-function sum64_5_lo(ah, al, bh, bl, ch, cl, dh, dl, eh, el) {
-  var lo = al + bl + cl + dl + el;
+  if (n !== 0) state.emittedReadable = false;
 
-  return lo >>> 0;
-};
-exports.sum64_5_lo = sum64_5_lo;
+  // if we're doing read(0) to trigger a readable event, but we
+  // already have a bunch of data in the buffer, then just trigger
+  // the 'readable' event and move on.
+  if (n === 0 && state.needReadable && (state.length >= state.highWaterMark || state.ended)) {
+    debug('read: emitReadable', state.length, state.ended);
+    if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this);
+    return null;
+  }
 
-function rotr64_hi(ah, al, num) {
-  var r = (al << (32 - num)) | (ah >>> num);
-  return r >>> 0;
-};
-exports.rotr64_hi = rotr64_hi;
+  n = howMuchToRead(n, state);
 
-function rotr64_lo(ah, al, num) {
-  var r = (ah << (32 - num)) | (al >>> num);
-  return r >>> 0;
-};
-exports.rotr64_lo = rotr64_lo;
+  // if we've ended, and we're now clear, then finish it up.
+  if (n === 0 && state.ended) {
+    if (state.length === 0) endReadable(this);
+    return null;
+  }
 
-function shr64_hi(ah, al, num) {
-  return ah >>> num;
-};
-exports.shr64_hi = shr64_hi;
+  // All the actual chunk generation logic needs to be
+  // *below* the call to _read.  The reason is that in certain
+  // synthetic stream cases, such as passthrough streams, _read
+  // may be a completely synchronous operation which may change
+  // the state of the read buffer, providing enough data when
+  // before there was *not* enough.
+  //
+  // So, the steps are:
+  // 1. Figure out what the state of things will be after we do
+  // a read from the buffer.
+  //
+  // 2. If that resulting state will trigger a _read, then call _read.
+  // Note that this may be asynchronous, or synchronous.  Yes, it is
+  // deeply ugly to write APIs this way, but that still doesn't mean
+  // that the Readable class should behave improperly, as streams are
+  // designed to be sync/async agnostic.
+  // Take note if the _read call is sync or async (ie, if the read call
+  // has returned yet), so that we know whether or not it's safe to emit
+  // 'readable' etc.
+  //
+  // 3. Actually pull the requested chunks out of the buffer and return.
 
-function shr64_lo(ah, al, num) {
-  var r = (ah << (32 - num)) | (al >>> num);
-  return r >>> 0;
-};
-exports.shr64_lo = shr64_lo;
+  // if we need a readable event, then we need to do some reading.
+  var doRead = state.needReadable;
+  debug('need readable', doRead);
 
-},{"inherits":63}],63:[function(require,module,exports){
-arguments[4][9][0].apply(exports,arguments)
-},{"dup":9}],64:[function(require,module,exports){
-/**
- * Returns a `Boolean` on whether or not the a `String` starts with '0x'
- * @param {String} str the string input value
- * @return {Boolean} a boolean if it is or is not hex prefixed
- * @throws if the str input is not a string
- */
-module.exports = function isHexPrefixed(str) {
-  if (typeof str !== 'string') {
-    throw new Error("[is-hex-prefixed] value must be type 'string', is currently type " + (typeof str) + ", while checking isHexPrefixed.");
+  // if we currently have less than the highWaterMark, then also read some
+  if (state.length === 0 || state.length - n < state.highWaterMark) {
+    doRead = true;
+    debug('length less than watermark', doRead);
   }
 
-  return str.slice(0, 2) === '0x';
-}
+  // however, if we've ended, then there's no point, and if we're already
+  // reading, then it's unnecessary.
+  if (state.ended || state.reading) {
+    doRead = false;
+    debug('reading or ended', doRead);
+  } else if (doRead) {
+    debug('do read');
+    state.reading = true;
+    state.sync = true;
+    // if the length is currently zero, then we *need* a readable event.
+    if (state.length === 0) state.needReadable = true;
+    // call internal read method
+    this._read(state.highWaterMark);
+    state.sync = false;
+    // If _read pushed data synchronously, then `reading` will be false,
+    // and we need to re-evaluate how much data we can return to the user.
+    if (!state.reading) n = howMuchToRead(nOrig, state);
+  }
 
-},{}],65:[function(require,module,exports){
-'use strict'
-module.exports = require('./lib/api')(require('./lib/keccak'))
+  var ret;
+  if (n > 0) ret = fromList(n, state);else ret = null;
 
-},{"./lib/api":66,"./lib/keccak":70}],66:[function(require,module,exports){
-'use strict'
-var createKeccak = require('./keccak')
-var createShake = require('./shake')
+  if (ret === null) {
+    state.needReadable = true;
+    n = 0;
+  } else {
+    state.length -= n;
+  }
 
-module.exports = function (KeccakState) {
-  var Keccak = createKeccak(KeccakState)
-  var Shake = createShake(KeccakState)
+  if (state.length === 0) {
+    // If we have nothing in the buffer, then we want to know
+    // as soon as we *do* get something into the buffer.
+    if (!state.ended) state.needReadable = true;
 
-  return function (algorithm, options) {
-    var hash = typeof algorithm === 'string' ? algorithm.toLowerCase() : algorithm
-    switch (hash) {
-      case 'keccak224': return new Keccak(1152, 448, null, 224, options)
-      case 'keccak256': return new Keccak(1088, 512, null, 256, options)
-      case 'keccak384': return new Keccak(832, 768, null, 384, options)
-      case 'keccak512': return new Keccak(576, 1024, null, 512, options)
+    // If we tried to read() past the EOF, then emit end on the next tick.
+    if (nOrig !== n && state.ended) endReadable(this);
+  }
 
-      case 'sha3-224': return new Keccak(1152, 448, 0x06, 224, options)
-      case 'sha3-256': return new Keccak(1088, 512, 0x06, 256, options)
-      case 'sha3-384': return new Keccak(832, 768, 0x06, 384, options)
-      case 'sha3-512': return new Keccak(576, 1024, 0x06, 512, options)
+  if (ret !== null) this.emit('data', ret);
 
-      case 'shake128': return new Shake(1344, 256, 0x1f, options)
-      case 'shake256': return new Shake(1088, 512, 0x1f, options)
+  return ret;
+};
 
-      default: throw new Error('Invald algorithm: ' + algorithm)
+function onEofChunk(stream, state) {
+  if (state.ended) return;
+  if (state.decoder) {
+    var chunk = state.decoder.end();
+    if (chunk && chunk.length) {
+      state.buffer.push(chunk);
+      state.length += state.objectMode ? 1 : chunk.length;
     }
   }
+  state.ended = true;
+
+  // emit 'readable' now to make sure it gets picked up.
+  emitReadable(stream);
 }
 
-},{"./keccak":67,"./shake":68}],67:[function(require,module,exports){
-(function (Buffer){
-'use strict'
-var Transform = require('stream').Transform
-var inherits = require('inherits')
+// Don't emit readable right away in sync mode, because this can trigger
+// another read() call => stack overflow.  This way, it might trigger
+// a nextTick recursion warning, but that's not so bad.
+function emitReadable(stream) {
+  var state = stream._readableState;
+  state.needReadable = false;
+  if (!state.emittedReadable) {
+    debug('emitReadable', state.flowing);
+    state.emittedReadable = true;
+    if (state.sync) processNextTick(emitReadable_, stream);else emitReadable_(stream);
+  }
+}
 
-module.exports = function (KeccakState) {
-  function Keccak (rate, capacity, delimitedSuffix, hashBitLength, options) {
-    Transform.call(this, options)
+function emitReadable_(stream) {
+  debug('emit readable');
+  stream.emit('readable');
+  flow(stream);
+}
 
-    this._rate = rate
-    this._capacity = capacity
-    this._delimitedSuffix = delimitedSuffix
-    this._hashBitLength = hashBitLength
-    this._options = options
+// at this point, the user has presumably seen the 'readable' event,
+// and called read() to consume some data.  that may have triggered
+// in turn another _read(n) call, in which case reading = true if
+// it's in progress.
+// However, if we're not ended, or reading, and the length < hwm,
+// then go ahead and try to read some more preemptively.
+function maybeReadMore(stream, state) {
+  if (!state.readingMore) {
+    state.readingMore = true;
+    processNextTick(maybeReadMore_, stream, state);
+  }
+}
 
-    this._state = new KeccakState()
-    this._state.initialize(rate, capacity)
-    this._finalized = false
+function maybeReadMore_(stream, state) {
+  var len = state.length;
+  while (!state.reading && !state.flowing && !state.ended && state.length < state.highWaterMark) {
+    debug('maybeReadMore read 0');
+    stream.read(0);
+    if (len === state.length)
+      // didn't get any data, stop spinning.
+      break;else len = state.length;
   }
+  state.readingMore = false;
+}
 
-  inherits(Keccak, Transform)
+// abstract method.  to be overridden in specific implementation classes.
+// call cb(er, data) where data is <= n in length.
+// for virtual (non-string, non-buffer) streams, "length" is somewhat
+// arbitrary, and perhaps not very meaningful.
+Readable.prototype._read = function (n) {
+  this.emit('error', new Error('_read() is not implemented'));
+};
 
-  Keccak.prototype._transform = function (chunk, encoding, callback) {
-    var error = null
-    try {
-      this.update(chunk, encoding)
-    } catch (err) {
-      error = err
-    }
+Readable.prototype.pipe = function (dest, pipeOpts) {
+  var src = this;
+  var state = this._readableState;
 
-    callback(error)
+  switch (state.pipesCount) {
+    case 0:
+      state.pipes = dest;
+      break;
+    case 1:
+      state.pipes = [state.pipes, dest];
+      break;
+    default:
+      state.pipes.push(dest);
+      break;
   }
+  state.pipesCount += 1;
+  debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts);
 
-  Keccak.prototype._flush = function (callback) {
-    var error = null
-    try {
-      this.push(this.digest())
-    } catch (err) {
-      error = err
-    }
-
-    callback(error)
-  }
+  var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr;
 
-  Keccak.prototype.update = function (data, encoding) {
-    if (!Buffer.isBuffer(data) && typeof data !== 'string') throw new TypeError('Data must be a string or a buffer')
-    if (this._finalized) throw new Error('Digest already called')
-    if (!Buffer.isBuffer(data)) data = Buffer.from(data, encoding)
+  var endFn = doEnd ? onend : unpipe;
+  if (state.endEmitted) processNextTick(endFn);else src.once('end', endFn);
 
-    this._state.absorb(data)
+  dest.on('unpipe', onunpipe);
+  function onunpipe(readable, unpipeInfo) {
+    debug('onunpipe');
+    if (readable === src) {
+      if (unpipeInfo && unpipeInfo.hasUnpiped === false) {
+        unpipeInfo.hasUnpiped = true;
+        cleanup();
+      }
+    }
+  }
 
-    return this
+  function onend() {
+    debug('onend');
+    dest.end();
   }
 
-  Keccak.prototype.digest = function (encoding) {
-    if (this._finalized) throw new Error('Digest already called')
-    this._finalized = true
+  // when the dest drains, it reduces the awaitDrain counter
+  // on the source.  This would be more elegant with a .once()
+  // handler in flow(), but adding and removing repeatedly is
+  // too slow.
+  var ondrain = pipeOnDrain(src);
+  dest.on('drain', ondrain);
 
-    if (this._delimitedSuffix) this._state.absorbLastFewBits(this._delimitedSuffix)
-    var digest = this._state.squeeze(this._hashBitLength / 8)
-    if (encoding !== undefined) digest = digest.toString(encoding)
+  var cleanedUp = false;
+  function cleanup() {
+    debug('cleanup');
+    // cleanup event handlers once the pipe is broken
+    dest.removeListener('close', onclose);
+    dest.removeListener('finish', onfinish);
+    dest.removeListener('drain', ondrain);
+    dest.removeListener('error', onerror);
+    dest.removeListener('unpipe', onunpipe);
+    src.removeListener('end', onend);
+    src.removeListener('end', unpipe);
+    src.removeListener('data', ondata);
 
-    this._resetState()
+    cleanedUp = true;
 
-    return digest
+    // if the reader is waiting for a drain event from this
+    // specific writer, then it would cause it to never start
+    // flowing again.
+    // So, if this is awaiting a drain, then we just call it now.
+    // If we don't know, then assume that we are waiting for one.
+    if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain();
   }
 
-  // remove result from memory
-  Keccak.prototype._resetState = function () {
-    this._state.initialize(this._rate, this._capacity)
-    return this
+  // If the user pushes more data while we're writing to dest then we'll end up
+  // in ondata again. However, we only want to increase awaitDrain once because
+  // dest will only emit one 'drain' event for the multiple writes.
+  // => Introduce a guard on increasing awaitDrain.
+  var increasedAwaitDrain = false;
+  src.on('data', ondata);
+  function ondata(chunk) {
+    debug('ondata');
+    increasedAwaitDrain = false;
+    var ret = dest.write(chunk);
+    if (false === ret && !increasedAwaitDrain) {
+      // If the user unpiped during `dest.write()`, it is possible
+      // to get stuck in a permanently paused state if that write
+      // also returned false.
+      // => Check whether `dest` is still a piping destination.
+      if ((state.pipesCount === 1 && state.pipes === dest || state.pipesCount > 1 && indexOf(state.pipes, dest) !== -1) && !cleanedUp) {
+        debug('false write response, pause', src._readableState.awaitDrain);
+        src._readableState.awaitDrain++;
+        increasedAwaitDrain = true;
+      }
+      src.pause();
+    }
   }
 
-  // because sometimes we need hash right now and little later
-  Keccak.prototype._clone = function () {
-    var clone = new Keccak(this._rate, this._capacity, this._delimitedSuffix, this._hashBitLength, this._options)
-    this._state.copy(clone._state)
-    clone._finalized = this._finalized
-
-    return clone
+  // if the dest has an error, then stop piping into it.
+  // however, don't suppress the throwing behavior for this.
+  function onerror(er) {
+    debug('onerror', er);
+    unpipe();
+    dest.removeListener('error', onerror);
+    if (EElistenerCount(dest, 'error') === 0) dest.emit('error', er);
   }
 
-  return Keccak
-}
+  // Make sure our error handler is attached before userland ones.
+  prependListener(dest, 'error', onerror);
 
-}).call(this,require("buffer").Buffer)
-},{"buffer":5,"inherits":63,"stream":25}],68:[function(require,module,exports){
-(function (Buffer){
-'use strict'
-var Transform = require('stream').Transform
-var inherits = require('inherits')
+  // Both close and finish should trigger unpipe, but only once.
+  function onclose() {
+    dest.removeListener('finish', onfinish);
+    unpipe();
+  }
+  dest.once('close', onclose);
+  function onfinish() {
+    debug('onfinish');
+    dest.removeListener('close', onclose);
+    unpipe();
+  }
+  dest.once('finish', onfinish);
 
-module.exports = function (KeccakState) {
-  function Shake (rate, capacity, delimitedSuffix, options) {
-    Transform.call(this, options)
+  function unpipe() {
+    debug('unpipe');
+    src.unpipe(dest);
+  }
 
-    this._rate = rate
-    this._capacity = capacity
-    this._delimitedSuffix = delimitedSuffix
-    this._options = options
+  // tell the dest that it's being piped to
+  dest.emit('pipe', src);
 
-    this._state = new KeccakState()
-    this._state.initialize(rate, capacity)
-    this._finalized = false
+  // start the flow if it hasn't been started already.
+  if (!state.flowing) {
+    debug('pipe resume');
+    src.resume();
   }
 
-  inherits(Shake, Transform)
+  return dest;
+};
 
-  Shake.prototype._transform = function (chunk, encoding, callback) {
-    var error = null
-    try {
-      this.update(chunk, encoding)
-    } catch (err) {
-      error = err
+function pipeOnDrain(src) {
+  return function () {
+    var state = src._readableState;
+    debug('pipeOnDrain', state.awaitDrain);
+    if (state.awaitDrain) state.awaitDrain--;
+    if (state.awaitDrain === 0 && EElistenerCount(src, 'data')) {
+      state.flowing = true;
+      flow(src);
     }
+  };
+}
 
-    callback(error)
-  }
-
-  Shake.prototype._flush = function () {}
+Readable.prototype.unpipe = function (dest) {
+  var state = this._readableState;
+  var unpipeInfo = { hasUnpiped: false };
 
-  Shake.prototype._read = function (size) {
-    this.push(this.squeeze(size))
-  }
+  // if we're not piping anywhere, then do nothing.
+  if (state.pipesCount === 0) return this;
 
-  Shake.prototype.update = function (data, encoding) {
-    if (!Buffer.isBuffer(data) && typeof data !== 'string') throw new TypeError('Data must be a string or a buffer')
-    if (this._finalized) throw new Error('Squeeze already called')
-    if (!Buffer.isBuffer(data)) data = Buffer.from(data, encoding)
+  // just one destination.  most common case.
+  if (state.pipesCount === 1) {
+    // passed in one, but it's not the right one.
+    if (dest && dest !== state.pipes) return this;
 
-    this._state.absorb(data)
+    if (!dest) dest = state.pipes;
 
-    return this
+    // got a match.
+    state.pipes = null;
+    state.pipesCount = 0;
+    state.flowing = false;
+    if (dest) dest.emit('unpipe', this, unpipeInfo);
+    return this;
   }
 
-  Shake.prototype.squeeze = function (dataByteLength, encoding) {
-    if (!this._finalized) {
-      this._finalized = true
-      this._state.absorbLastFewBits(this._delimitedSuffix)
-    }
+  // slow case. multiple pipe destinations.
 
-    var data = this._state.squeeze(dataByteLength)
-    if (encoding !== undefined) data = data.toString(encoding)
+  if (!dest) {
+    // remove all.
+    var dests = state.pipes;
+    var len = state.pipesCount;
+    state.pipes = null;
+    state.pipesCount = 0;
+    state.flowing = false;
 
-    return data
+    for (var i = 0; i < len; i++) {
+      dests[i].emit('unpipe', this, unpipeInfo);
+    }return this;
   }
 
-  Shake.prototype._resetState = function () {
-    this._state.initialize(this._rate, this._capacity)
-    return this
-  }
+  // try to find the right one.
+  var index = indexOf(state.pipes, dest);
+  if (index === -1) return this;
 
-  Shake.prototype._clone = function () {
-    var clone = new Shake(this._rate, this._capacity, this._delimitedSuffix, this._options)
-    this._state.copy(clone._state)
-    clone._finalized = this._finalized
+  state.pipes.splice(index, 1);
+  state.pipesCount -= 1;
+  if (state.pipesCount === 1) state.pipes = state.pipes[0];
 
-    return clone
-  }
+  dest.emit('unpipe', this, unpipeInfo);
 
-  return Shake
-}
+  return this;
+};
 
-}).call(this,require("buffer").Buffer)
-},{"buffer":5,"inherits":63,"stream":25}],69:[function(require,module,exports){
-'use strict'
-var P1600_ROUND_CONSTANTS = [1, 0, 32898, 0, 32906, 2147483648, 2147516416, 2147483648, 32907, 0, 2147483649, 0, 2147516545, 2147483648, 32777, 2147483648, 138, 0, 136, 0, 2147516425, 0, 2147483658, 0, 2147516555, 0, 139, 2147483648, 32905, 2147483648, 32771, 2147483648, 32770, 2147483648, 128, 2147483648, 32778, 0, 2147483658, 2147483648, 2147516545, 2147483648, 32896, 2147483648, 2147483649, 0, 2147516424, 2147483648]
+// set up data events if they are asked for
+// Ensure readable listeners eventually get something
+Readable.prototype.on = function (ev, fn) {
+  var res = Stream.prototype.on.call(this, ev, fn);
 
-exports.p1600 = function (s) {
-  for (var round = 0; round < 24; ++round) {
-    // theta
-    var lo0 = s[0] ^ s[10] ^ s[20] ^ s[30] ^ s[40]
-    var hi0 = s[1] ^ s[11] ^ s[21] ^ s[31] ^ s[41]
-    var lo1 = s[2] ^ s[12] ^ s[22] ^ s[32] ^ s[42]
-    var hi1 = s[3] ^ s[13] ^ s[23] ^ s[33] ^ s[43]
-    var lo2 = s[4] ^ s[14] ^ s[24] ^ s[34] ^ s[44]
-    var hi2 = s[5] ^ s[15] ^ s[25] ^ s[35] ^ s[45]
-    var lo3 = s[6] ^ s[16] ^ s[26] ^ s[36] ^ s[46]
-    var hi3 = s[7] ^ s[17] ^ s[27] ^ s[37] ^ s[47]
-    var lo4 = s[8] ^ s[18] ^ s[28] ^ s[38] ^ s[48]
-    var hi4 = s[9] ^ s[19] ^ s[29] ^ s[39] ^ s[49]
+  if (ev === 'data') {
+    // Start flowing on next tick if stream isn't explicitly paused
+    if (this._readableState.flowing !== false) this.resume();
+  } else if (ev === 'readable') {
+    var state = this._readableState;
+    if (!state.endEmitted && !state.readableListening) {
+      state.readableListening = state.needReadable = true;
+      state.emittedReadable = false;
+      if (!state.reading) {
+        processNextTick(nReadingNextTick, this);
+      } else if (state.length) {
+        emitReadable(this);
+      }
+    }
+  }
 
-    var lo = lo4 ^ (lo1 << 1 | hi1 >>> 31)
-    var hi = hi4 ^ (hi1 << 1 | lo1 >>> 31)
-    var t1slo0 = s[0] ^ lo
-    var t1shi0 = s[1] ^ hi
-    var t1slo5 = s[10] ^ lo
-    var t1shi5 = s[11] ^ hi
-    var t1slo10 = s[20] ^ lo
-    var t1shi10 = s[21] ^ hi
-    var t1slo15 = s[30] ^ lo
-    var t1shi15 = s[31] ^ hi
-    var t1slo20 = s[40] ^ lo
-    var t1shi20 = s[41] ^ hi
-    lo = lo0 ^ (lo2 << 1 | hi2 >>> 31)
-    hi = hi0 ^ (hi2 << 1 | lo2 >>> 31)
-    var t1slo1 = s[2] ^ lo
-    var t1shi1 = s[3] ^ hi
-    var t1slo6 = s[12] ^ lo
-    var t1shi6 = s[13] ^ hi
-    var t1slo11 = s[22] ^ lo
-    var t1shi11 = s[23] ^ hi
-    var t1slo16 = s[32] ^ lo
-    var t1shi16 = s[33] ^ hi
-    var t1slo21 = s[42] ^ lo
-    var t1shi21 = s[43] ^ hi
-    lo = lo1 ^ (lo3 << 1 | hi3 >>> 31)
-    hi = hi1 ^ (hi3 << 1 | lo3 >>> 31)
-    var t1slo2 = s[4] ^ lo
-    var t1shi2 = s[5] ^ hi
-    var t1slo7 = s[14] ^ lo
-    var t1shi7 = s[15] ^ hi
-    var t1slo12 = s[24] ^ lo
-    var t1shi12 = s[25] ^ hi
-    var t1slo17 = s[34] ^ lo
-    var t1shi17 = s[35] ^ hi
-    var t1slo22 = s[44] ^ lo
-    var t1shi22 = s[45] ^ hi
-    lo = lo2 ^ (lo4 << 1 | hi4 >>> 31)
-    hi = hi2 ^ (hi4 << 1 | lo4 >>> 31)
-    var t1slo3 = s[6] ^ lo
-    var t1shi3 = s[7] ^ hi
-    var t1slo8 = s[16] ^ lo
-    var t1shi8 = s[17] ^ hi
-    var t1slo13 = s[26] ^ lo
-    var t1shi13 = s[27] ^ hi
-    var t1slo18 = s[36] ^ lo
-    var t1shi18 = s[37] ^ hi
-    var t1slo23 = s[46] ^ lo
-    var t1shi23 = s[47] ^ hi
-    lo = lo3 ^ (lo0 << 1 | hi0 >>> 31)
-    hi = hi3 ^ (hi0 << 1 | lo0 >>> 31)
-    var t1slo4 = s[8] ^ lo
-    var t1shi4 = s[9] ^ hi
-    var t1slo9 = s[18] ^ lo
-    var t1shi9 = s[19] ^ hi
-    var t1slo14 = s[28] ^ lo
-    var t1shi14 = s[29] ^ hi
-    var t1slo19 = s[38] ^ lo
-    var t1shi19 = s[39] ^ hi
-    var t1slo24 = s[48] ^ lo
-    var t1shi24 = s[49] ^ hi
+  return res;
+};
+Readable.prototype.addListener = Readable.prototype.on;
 
-    // rho & pi
-    var t2slo0 = t1slo0
-    var t2shi0 = t1shi0
-    var t2slo16 = (t1shi5 << 4 | t1slo5 >>> 28)
-    var t2shi16 = (t1slo5 << 4 | t1shi5 >>> 28)
-    var t2slo7 = (t1slo10 << 3 | t1shi10 >>> 29)
-    var t2shi7 = (t1shi10 << 3 | t1slo10 >>> 29)
-    var t2slo23 = (t1shi15 << 9 | t1slo15 >>> 23)
-    var t2shi23 = (t1slo15 << 9 | t1shi15 >>> 23)
-    var t2slo14 = (t1slo20 << 18 | t1shi20 >>> 14)
-    var t2shi14 = (t1shi20 << 18 | t1slo20 >>> 14)
-    var t2slo10 = (t1slo1 << 1 | t1shi1 >>> 31)
-    var t2shi10 = (t1shi1 << 1 | t1slo1 >>> 31)
-    var t2slo1 = (t1shi6 << 12 | t1slo6 >>> 20)
-    var t2shi1 = (t1slo6 << 12 | t1shi6 >>> 20)
-    var t2slo17 = (t1slo11 << 10 | t1shi11 >>> 22)
-    var t2shi17 = (t1shi11 << 10 | t1slo11 >>> 22)
-    var t2slo8 = (t1shi16 << 13 | t1slo16 >>> 19)
-    var t2shi8 = (t1slo16 << 13 | t1shi16 >>> 19)
-    var t2slo24 = (t1slo21 << 2 | t1shi21 >>> 30)
-    var t2shi24 = (t1shi21 << 2 | t1slo21 >>> 30)
-    var t2slo20 = (t1shi2 << 30 | t1slo2 >>> 2)
-    var t2shi20 = (t1slo2 << 30 | t1shi2 >>> 2)
-    var t2slo11 = (t1slo7 << 6 | t1shi7 >>> 26)
-    var t2shi11 = (t1shi7 << 6 | t1slo7 >>> 26)
-    var t2slo2 = (t1shi12 << 11 | t1slo12 >>> 21)
-    var t2shi2 = (t1slo12 << 11 | t1shi12 >>> 21)
-    var t2slo18 = (t1slo17 << 15 | t1shi17 >>> 17)
-    var t2shi18 = (t1shi17 << 15 | t1slo17 >>> 17)
-    var t2slo9 = (t1shi22 << 29 | t1slo22 >>> 3)
-    var t2shi9 = (t1slo22 << 29 | t1shi22 >>> 3)
-    var t2slo5 = (t1slo3 << 28 | t1shi3 >>> 4)
-    var t2shi5 = (t1shi3 << 28 | t1slo3 >>> 4)
-    var t2slo21 = (t1shi8 << 23 | t1slo8 >>> 9)
-    var t2shi21 = (t1slo8 << 23 | t1shi8 >>> 9)
-    var t2slo12 = (t1slo13 << 25 | t1shi13 >>> 7)
-    var t2shi12 = (t1shi13 << 25 | t1slo13 >>> 7)
-    var t2slo3 = (t1slo18 << 21 | t1shi18 >>> 11)
-    var t2shi3 = (t1shi18 << 21 | t1slo18 >>> 11)
-    var t2slo19 = (t1shi23 << 24 | t1slo23 >>> 8)
-    var t2shi19 = (t1slo23 << 24 | t1shi23 >>> 8)
-    var t2slo15 = (t1slo4 << 27 | t1shi4 >>> 5)
-    var t2shi15 = (t1shi4 << 27 | t1slo4 >>> 5)
-    var t2slo6 = (t1slo9 << 20 | t1shi9 >>> 12)
-    var t2shi6 = (t1shi9 << 20 | t1slo9 >>> 12)
-    var t2slo22 = (t1shi14 << 7 | t1slo14 >>> 25)
-    var t2shi22 = (t1slo14 << 7 | t1shi14 >>> 25)
-    var t2slo13 = (t1slo19 << 8 | t1shi19 >>> 24)
-    var t2shi13 = (t1shi19 << 8 | t1slo19 >>> 24)
-    var t2slo4 = (t1slo24 << 14 | t1shi24 >>> 18)
-    var t2shi4 = (t1shi24 << 14 | t1slo24 >>> 18)
+function nReadingNextTick(self) {
+  debug('readable nexttick read 0');
+  self.read(0);
+}
 
-    // chi
-    s[0] = t2slo0 ^ (~t2slo1 & t2slo2)
-    s[1] = t2shi0 ^ (~t2shi1 & t2shi2)
-    s[10] = t2slo5 ^ (~t2slo6 & t2slo7)
-    s[11] = t2shi5 ^ (~t2shi6 & t2shi7)
-    s[20] = t2slo10 ^ (~t2slo11 & t2slo12)
-    s[21] = t2shi10 ^ (~t2shi11 & t2shi12)
-    s[30] = t2slo15 ^ (~t2slo16 & t2slo17)
-    s[31] = t2shi15 ^ (~t2shi16 & t2shi17)
-    s[40] = t2slo20 ^ (~t2slo21 & t2slo22)
-    s[41] = t2shi20 ^ (~t2shi21 & t2shi22)
-    s[2] = t2slo1 ^ (~t2slo2 & t2slo3)
-    s[3] = t2shi1 ^ (~t2shi2 & t2shi3)
-    s[12] = t2slo6 ^ (~t2slo7 & t2slo8)
-    s[13] = t2shi6 ^ (~t2shi7 & t2shi8)
-    s[22] = t2slo11 ^ (~t2slo12 & t2slo13)
-    s[23] = t2shi11 ^ (~t2shi12 & t2shi13)
-    s[32] = t2slo16 ^ (~t2slo17 & t2slo18)
-    s[33] = t2shi16 ^ (~t2shi17 & t2shi18)
-    s[42] = t2slo21 ^ (~t2slo22 & t2slo23)
-    s[43] = t2shi21 ^ (~t2shi22 & t2shi23)
-    s[4] = t2slo2 ^ (~t2slo3 & t2slo4)
-    s[5] = t2shi2 ^ (~t2shi3 & t2shi4)
-    s[14] = t2slo7 ^ (~t2slo8 & t2slo9)
-    s[15] = t2shi7 ^ (~t2shi8 & t2shi9)
-    s[24] = t2slo12 ^ (~t2slo13 & t2slo14)
-    s[25] = t2shi12 ^ (~t2shi13 & t2shi14)
-    s[34] = t2slo17 ^ (~t2slo18 & t2slo19)
-    s[35] = t2shi17 ^ (~t2shi18 & t2shi19)
-    s[44] = t2slo22 ^ (~t2slo23 & t2slo24)
-    s[45] = t2shi22 ^ (~t2shi23 & t2shi24)
-    s[6] = t2slo3 ^ (~t2slo4 & t2slo0)
-    s[7] = t2shi3 ^ (~t2shi4 & t2shi0)
-    s[16] = t2slo8 ^ (~t2slo9 & t2slo5)
-    s[17] = t2shi8 ^ (~t2shi9 & t2shi5)
-    s[26] = t2slo13 ^ (~t2slo14 & t2slo10)
-    s[27] = t2shi13 ^ (~t2shi14 & t2shi10)
-    s[36] = t2slo18 ^ (~t2slo19 & t2slo15)
-    s[37] = t2shi18 ^ (~t2shi19 & t2shi15)
-    s[46] = t2slo23 ^ (~t2slo24 & t2slo20)
-    s[47] = t2shi23 ^ (~t2shi24 & t2shi20)
-    s[8] = t2slo4 ^ (~t2slo0 & t2slo1)
-    s[9] = t2shi4 ^ (~t2shi0 & t2shi1)
-    s[18] = t2slo9 ^ (~t2slo5 & t2slo6)
-    s[19] = t2shi9 ^ (~t2shi5 & t2shi6)
-    s[28] = t2slo14 ^ (~t2slo10 & t2slo11)
-    s[29] = t2shi14 ^ (~t2shi10 & t2shi11)
-    s[38] = t2slo19 ^ (~t2slo15 & t2slo16)
-    s[39] = t2shi19 ^ (~t2shi15 & t2shi16)
-    s[48] = t2slo24 ^ (~t2slo20 & t2slo21)
-    s[49] = t2shi24 ^ (~t2shi20 & t2shi21)
+// pause() and resume() are remnants of the legacy readable stream API
+// If the user uses them, then switch into old mode.
+Readable.prototype.resume = function () {
+  var state = this._readableState;
+  if (!state.flowing) {
+    debug('resume');
+    state.flowing = true;
+    resume(this, state);
+  }
+  return this;
+};
 
-    // iota
-    s[0] ^= P1600_ROUND_CONSTANTS[round * 2]
-    s[1] ^= P1600_ROUND_CONSTANTS[round * 2 + 1]
+function resume(stream, state) {
+  if (!state.resumeScheduled) {
+    state.resumeScheduled = true;
+    processNextTick(resume_, stream, state);
   }
 }
 
-},{}],70:[function(require,module,exports){
-(function (Buffer){
-'use strict'
-var keccakState = require('./keccak-state-unroll')
-
-function Keccak () {
-  // much faster than `new Array(50)`
-  this.state = [
-    0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0
-  ]
-
-  this.blockSize = null
-  this.count = 0
-  this.squeezing = false
-}
+function resume_(stream, state) {
+  if (!state.reading) {
+    debug('resume read 0');
+    stream.read(0);
+  }
 
-Keccak.prototype.initialize = function (rate, capacity) {
-  for (var i = 0; i < 50; ++i) this.state[i] = 0
-  this.blockSize = rate / 8
-  this.count = 0
-  this.squeezing = false
+  state.resumeScheduled = false;
+  state.awaitDrain = 0;
+  stream.emit('resume');
+  flow(stream);
+  if (state.flowing && !state.reading) stream.read(0);
 }
 
-Keccak.prototype.absorb = function (data) {
-  for (var i = 0; i < data.length; ++i) {
-    this.state[~~(this.count / 4)] ^= data[i] << (8 * (this.count % 4))
-    this.count += 1
-    if (this.count === this.blockSize) {
-      keccakState.p1600(this.state)
-      this.count = 0
-    }
+Readable.prototype.pause = function () {
+  debug('call pause flowing=%j', this._readableState.flowing);
+  if (false !== this._readableState.flowing) {
+    debug('pause');
+    this._readableState.flowing = false;
+    this.emit('pause');
   }
-}
+  return this;
+};
 
-Keccak.prototype.absorbLastFewBits = function (bits) {
-  this.state[~~(this.count / 4)] ^= bits << (8 * (this.count % 4))
-  if ((bits & 0x80) !== 0 && this.count === (this.blockSize - 1)) keccakState.p1600(this.state)
-  this.state[~~((this.blockSize - 1) / 4)] ^= 0x80 << (8 * ((this.blockSize - 1) % 4))
-  keccakState.p1600(this.state)
-  this.count = 0
-  this.squeezing = true
+function flow(stream) {
+  var state = stream._readableState;
+  debug('flow', state.flowing);
+  while (state.flowing && stream.read() !== null) {}
 }
 
-Keccak.prototype.squeeze = function (length) {
-  if (!this.squeezing) this.absorbLastFewBits(0x01)
+// wrap an old-style stream as the async data source.
+// This is *not* part of the readable stream interface.
+// It is an ugly unfortunate mess of history.
+Readable.prototype.wrap = function (stream) {
+  var state = this._readableState;
+  var paused = false;
 
-  var output = Buffer.allocUnsafe(length)
-  for (var i = 0; i < length; ++i) {
-    output[i] = (this.state[~~(this.count / 4)] >>> (8 * (this.count % 4))) & 0xff
-    this.count += 1
-    if (this.count === this.blockSize) {
-      keccakState.p1600(this.state)
-      this.count = 0
+  var self = this;
+  stream.on('end', function () {
+    debug('wrapped end');
+    if (state.decoder && !state.ended) {
+      var chunk = state.decoder.end();
+      if (chunk && chunk.length) self.push(chunk);
     }
-  }
 
-  return output
-}
+    self.push(null);
+  });
 
-Keccak.prototype.copy = function (dest) {
-  for (var i = 0; i < 50; ++i) dest.state[i] = this.state[i]
-  dest.blockSize = this.blockSize
-  dest.count = this.count
-  dest.squeezing = this.squeezing
-}
+  stream.on('data', function (chunk) {
+    debug('wrapped data');
+    if (state.decoder) chunk = state.decoder.write(chunk);
 
-module.exports = Keccak
+    // don't skip over falsy values in objectMode
+    if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return;
 
-}).call(this,require("buffer").Buffer)
-},{"./keccak-state-unroll":69,"buffer":5}],71:[function(require,module,exports){
-(function (Buffer){
-/*
-CryptoJS v3.1.2
-code.google.com/p/crypto-js
-(c) 2009-2013 by Jeff Mott. All rights reserved.
-code.google.com/p/crypto-js/wiki/License
-*/
-/** @preserve
-(c) 2012 by Cédric Mesnil. All rights reserved.
+    var ret = self.push(chunk);
+    if (!ret) {
+      paused = true;
+      stream.pause();
+    }
+  });
 
-Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+  // proxy all the other methods.
+  // important when wrapping filters and duplexes.
+  for (var i in stream) {
+    if (this[i] === undefined && typeof stream[i] === 'function') {
+      this[i] = function (method) {
+        return function () {
+          return stream[method].apply(stream, arguments);
+        };
+      }(i);
+    }
+  }
 
-    - Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
-    - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+  // proxy certain important events.
+  for (var n = 0; n < kProxyEvents.length; n++) {
+    stream.on(kProxyEvents[n], self.emit.bind(self, kProxyEvents[n]));
+  }
 
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
+  // when we try to consume some more bytes, simply unpause the
+  // underlying stream.
+  self._read = function (n) {
+    debug('wrapped _read', n);
+    if (paused) {
+      paused = false;
+      stream.resume();
+    }
+  };
 
-// constants table
-var zl = [
-  0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
-  7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8,
-  3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12,
-  1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2,
-  4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13
-]
+  return self;
+};
 
-var zr = [
-  5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12,
-  6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2,
-  15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13,
-  8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14,
-  12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11
-]
+// exposed for testing purposes only.
+Readable._fromList = fromList;
 
-var sl = [
-  11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8,
-  7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12,
-  11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5,
-  11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12,
-  9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6
-]
+// Pluck off n bytes from an array of buffers.
+// Length is the combined lengths of all the buffers in the list.
+// This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+function fromList(n, state) {
+  // nothing buffered
+  if (state.length === 0) return null;
 
-var sr = [
-  8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6,
-  9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11,
-  9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5,
-  15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8,
-  8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11
-]
+  var ret;
+  if (state.objectMode) ret = state.buffer.shift();else if (!n || n >= state.length) {
+    // read it all, truncate the list
+    if (state.decoder) ret = state.buffer.join('');else if (state.buffer.length === 1) ret = state.buffer.head.data;else ret = state.buffer.concat(state.length);
+    state.buffer.clear();
+  } else {
+    // read part of list
+    ret = fromListPartial(n, state.buffer, state.decoder);
+  }
 
-var hl = [0x00000000, 0x5A827999, 0x6ED9EBA1, 0x8F1BBCDC, 0xA953FD4E]
-var hr = [0x50A28BE6, 0x5C4DD124, 0x6D703EF3, 0x7A6D76E9, 0x00000000]
+  return ret;
+}
 
-function bytesToWords (bytes) {
-  var words = []
-  for (var i = 0, b = 0; i < bytes.length; i++, b += 8) {
-    words[b >>> 5] |= bytes[i] << (24 - b % 32)
+// Extracts only enough buffered data to satisfy the amount requested.
+// This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+function fromListPartial(n, list, hasStrings) {
+  var ret;
+  if (n < list.head.data.length) {
+    // slice is the same for buffers and strings
+    ret = list.head.data.slice(0, n);
+    list.head.data = list.head.data.slice(n);
+  } else if (n === list.head.data.length) {
+    // first chunk is a perfect match
+    ret = list.shift();
+  } else {
+    // result spans more than one buffer
+    ret = hasStrings ? copyFromBufferString(n, list) : copyFromBuffer(n, list);
   }
-  return words
+  return ret;
 }
 
-function wordsToBytes (words) {
-  var bytes = []
-  for (var b = 0; b < words.length * 32; b += 8) {
-    bytes.push((words[b >>> 5] >>> (24 - b % 32)) & 0xFF)
+// Copies a specified amount of characters from the list of buffered data
+// chunks.
+// This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+function copyFromBufferString(n, list) {
+  var p = list.head;
+  var c = 1;
+  var ret = p.data;
+  n -= ret.length;
+  while (p = p.next) {
+    var str = p.data;
+    var nb = n > str.length ? str.length : n;
+    if (nb === str.length) ret += str;else ret += str.slice(0, n);
+    n -= nb;
+    if (n === 0) {
+      if (nb === str.length) {
+        ++c;
+        if (p.next) list.head = p.next;else list.head = list.tail = null;
+      } else {
+        list.head = p;
+        p.data = str.slice(nb);
+      }
+      break;
+    }
+    ++c;
   }
-  return bytes
+  list.length -= c;
+  return ret;
 }
 
-function processBlock (H, M, offset) {
-  // swap endian
-  for (var i = 0; i < 16; i++) {
-    var offset_i = offset + i
-    var M_offset_i = M[offset_i]
-
-    // Swap
-    M[offset_i] = (
-      (((M_offset_i << 8) | (M_offset_i >>> 24)) & 0x00ff00ff) |
-      (((M_offset_i << 24) | (M_offset_i >>> 8)) & 0xff00ff00)
-    )
+// Copies a specified amount of bytes from the list of buffered data chunks.
+// This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+function copyFromBuffer(n, list) {
+  var ret = Buffer.allocUnsafe(n);
+  var p = list.head;
+  var c = 1;
+  p.data.copy(ret);
+  n -= p.data.length;
+  while (p = p.next) {
+    var buf = p.data;
+    var nb = n > buf.length ? buf.length : n;
+    buf.copy(ret, ret.length - n, 0, nb);
+    n -= nb;
+    if (n === 0) {
+      if (nb === buf.length) {
+        ++c;
+        if (p.next) list.head = p.next;else list.head = list.tail = null;
+      } else {
+        list.head = p;
+        p.data = buf.slice(nb);
+      }
+      break;
+    }
+    ++c;
   }
+  list.length -= c;
+  return ret;
+}
 
-  // Working variables
-  var al, bl, cl, dl, el
-  var ar, br, cr, dr, er
-
-  ar = al = H[0]
-  br = bl = H[1]
-  cr = cl = H[2]
-  dr = dl = H[3]
-  er = el = H[4]
-
-  // computation
-  var t
-  for (i = 0; i < 80; i += 1) {
-    t = (al + M[offset + zl[i]]) | 0
-    if (i < 16) {
-      t += f1(bl, cl, dl) + hl[0]
-    } else if (i < 32) {
-      t += f2(bl, cl, dl) + hl[1]
-    } else if (i < 48) {
-      t += f3(bl, cl, dl) + hl[2]
-    } else if (i < 64) {
-      t += f4(bl, cl, dl) + hl[3]
-    } else {// if (i<80) {
-      t += f5(bl, cl, dl) + hl[4]
-    }
-    t = t | 0
-    t = rotl(t, sl[i])
-    t = (t + el) | 0
-    al = el
-    el = dl
-    dl = rotl(cl, 10)
-    cl = bl
-    bl = t
+function endReadable(stream) {
+  var state = stream._readableState;
 
-    t = (ar + M[offset + zr[i]]) | 0
-    if (i < 16) {
-      t += f5(br, cr, dr) + hr[0]
-    } else if (i < 32) {
-      t += f4(br, cr, dr) + hr[1]
-    } else if (i < 48) {
-      t += f3(br, cr, dr) + hr[2]
-    } else if (i < 64) {
-      t += f2(br, cr, dr) + hr[3]
-    } else {// if (i<80) {
-      t += f1(br, cr, dr) + hr[4]
-    }
+  // If we get here before consuming all the bytes, then that is a
+  // bug in node.  Should never happen.
+  if (state.length > 0) throw new Error('"endReadable()" called on non-empty stream');
 
-    t = t | 0
-    t = rotl(t, sr[i])
-    t = (t + er) | 0
-    ar = er
-    er = dr
-    dr = rotl(cr, 10)
-    cr = br
-    br = t
+  if (!state.endEmitted) {
+    state.ended = true;
+    processNextTick(endReadableNT, state, stream);
   }
-
-  // intermediate hash value
-  t = (H[1] + cl + dr) | 0
-  H[1] = (H[2] + dl + er) | 0
-  H[2] = (H[3] + el + ar) | 0
-  H[3] = (H[4] + al + br) | 0
-  H[4] = (H[0] + bl + cr) | 0
-  H[0] = t
 }
 
-function f1 (x, y, z) {
-  return ((x) ^ (y) ^ (z))
+function endReadableNT(state, stream) {
+  // Check that we didn't get one last unshift.
+  if (!state.endEmitted && state.length === 0) {
+    state.endEmitted = true;
+    stream.readable = false;
+    stream.emit('end');
+  }
 }
 
-function f2 (x, y, z) {
-  return (((x) & (y)) | ((~x) & (z)))
+function forEach(xs, f) {
+  for (var i = 0, l = xs.length; i < l; i++) {
+    f(xs[i], i);
+  }
 }
 
-function f3 (x, y, z) {
-  return (((x) | (~(y))) ^ (z))
+function indexOf(xs, x) {
+  for (var i = 0, l = xs.length; i < l; i++) {
+    if (xs[i] === x) return i;
+  }
+  return -1;
 }
+}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"./_stream_duplex":27,"./internal/streams/BufferList":32,"./internal/streams/destroy":33,"./internal/streams/stream":34,"_process":25,"core-util-is":14,"events":18,"inherits":21,"isarray":23,"process-nextick-args":24,"safe-buffer":40,"string_decoder/":50,"util":4}],30:[function(require,module,exports){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-function f4 (x, y, z) {
-  return (((x) & (z)) | ((y) & (~(z))))
-}
+// a transform stream is a readable/writable stream where you do
+// something with the data.  Sometimes it's called a "filter",
+// but that's not a great name for it, since that implies a thing where
+// some bits pass through, and others are simply ignored.  (That would
+// be a valid example of a transform, of course.)
+//
+// While the output is causally related to the input, it's not a
+// necessarily symmetric or synchronous transformation.  For example,
+// a zlib stream might take multiple plain-text writes(), and then
+// emit a single compressed chunk some time in the future.
+//
+// Here's how this works:
+//
+// The Transform stream has all the aspects of the readable and writable
+// stream classes.  When you write(chunk), that calls _write(chunk,cb)
+// internally, and returns false if there's a lot of pending writes
+// buffered up.  When you call read(), that calls _read(n) until
+// there's enough pending readable data buffered up.
+//
+// In a transform stream, the written data is placed in a buffer.  When
+// _read(n) is called, it transforms the queued up data, calling the
+// buffered _write cb's as it consumes chunks.  If consuming a single
+// written chunk would result in multiple output chunks, then the first
+// outputted bit calls the readcb, and subsequent chunks just go into
+// the read buffer, and will cause it to emit 'readable' if necessary.
+//
+// This way, back-pressure is actually determined by the reading side,
+// since _read has to be called to start processing a new chunk.  However,
+// a pathological inflate type of transform can cause excessive buffering
+// here.  For example, imagine a stream where every byte of input is
+// interpreted as an integer from 0-255, and then results in that many
+// bytes of output.  Writing the 4 bytes {ff,ff,ff,ff} would result in
+// 1kb of data being output.  In this case, you could write a very small
+// amount of input, and end up with a very large amount of output.  In
+// such a pathological inflating mechanism, there'd be no way to tell
+// the system to stop doing the transform.  A single 4MB write could
+// cause the system to run out of memory.
+//
+// However, even in such a pathological case, only a single written chunk
+// would be consumed, and then the rest would wait (un-transformed) until
+// the results of the previous transformed chunk were consumed.
 
-function f5 (x, y, z) {
-  return ((x) ^ ((y) | (~(z))))
-}
+'use strict';
 
-function rotl (x, n) {
-  return (x << n) | (x >>> (32 - n))
-}
+module.exports = Transform;
 
-function ripemd160 (message) {
-  var H = [0x67452301, 0xEFCDAB89, 0x98BADCFE, 0x10325476, 0xC3D2E1F0]
+var Duplex = require('./_stream_duplex');
 
-  if (typeof message === 'string') {
-    message = new Buffer(message, 'utf8')
-  }
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
 
-  var m = bytesToWords(message)
+util.inherits(Transform, Duplex);
 
-  var nBitsLeft = message.length * 8
-  var nBitsTotal = message.length * 8
+function TransformState(stream) {
+  this.afterTransform = function (er, data) {
+    return afterTransform(stream, er, data);
+  };
 
-  // Add padding
-  m[nBitsLeft >>> 5] |= 0x80 << (24 - nBitsLeft % 32)
-  m[(((nBitsLeft + 64) >>> 9) << 4) + 14] = (
-    (((nBitsTotal << 8) | (nBitsTotal >>> 24)) & 0x00ff00ff) |
-    (((nBitsTotal << 24) | (nBitsTotal >>> 8)) & 0xff00ff00)
-  )
+  this.needTransform = false;
+  this.transforming = false;
+  this.writecb = null;
+  this.writechunk = null;
+  this.writeencoding = null;
+}
 
-  for (var i = 0; i < m.length; i += 16) {
-    processBlock(H, m, i)
-  }
+function afterTransform(stream, er, data) {
+  var ts = stream._transformState;
+  ts.transforming = false;
 
-  // swap endian
-  for (i = 0; i < 5; i++) {
-    // shortcut
-    var H_i = H[i]
+  var cb = ts.writecb;
 
-    // Swap
-    H[i] = (((H_i << 8) | (H_i >>> 24)) & 0x00ff00ff) |
-      (((H_i << 24) | (H_i >>> 8)) & 0xff00ff00)
+  if (!cb) {
+    return stream.emit('error', new Error('write callback called multiple times'));
   }
 
-  var digestbytes = wordsToBytes(H)
-  return new Buffer(digestbytes)
-}
+  ts.writechunk = null;
+  ts.writecb = null;
 
-module.exports = ripemd160
+  if (data !== null && data !== undefined) stream.push(data);
 
-}).call(this,require("buffer").Buffer)
-},{"buffer":5}],72:[function(require,module,exports){
-(function (Buffer){
-const assert = require('assert')
-/**
- * RLP Encoding based on: https://github.com/ethereum/wiki/wiki/%5BEnglish%5D-RLP
- * This function takes in a data, convert it to buffer if not, and a length for recursion
- *
- * @param {Buffer,String,Integer,Array} data - will be converted to buffer
- * @returns {Buffer} - returns buffer of encoded data
- **/
-exports.encode = function (input) {
-  if (input instanceof Array) {
-    var output = []
-    for (var i = 0; i < input.length; i++) {
-      output.push(exports.encode(input[i]))
-    }
-    var buf = Buffer.concat(output)
-    return Buffer.concat([encodeLength(buf.length, 192), buf])
-  } else {
-    input = toBuffer(input)
-    if (input.length === 1 && input[0] < 128) {
-      return input
-    } else {
-      return Buffer.concat([encodeLength(input.length, 128), input])
-    }
+  cb(er);
+
+  var rs = stream._readableState;
+  rs.reading = false;
+  if (rs.needReadable || rs.length < rs.highWaterMark) {
+    stream._read(rs.highWaterMark);
   }
 }
 
-function safeParseInt (v, base) {
-  if (v.slice(0, 2) === '00') {
-    throw (new Error('invalid RLP: extra zeros'))
-  }
+function Transform(options) {
+  if (!(this instanceof Transform)) return new Transform(options);
 
-  return parseInt(v, base)
-}
+  Duplex.call(this, options);
 
-function encodeLength (len, offset) {
-  if (len < 56) {
-    return new Buffer([len + offset])
-  } else {
-    var hexLength = intToHex(len)
-    var lLength = hexLength.length / 2
-    var firstByte = intToHex(offset + 55 + lLength)
-    return new Buffer(firstByte + hexLength, 'hex')
-  }
-}
+  this._transformState = new TransformState(this);
 
-/**
- * RLP Decoding based on: {@link https://github.com/ethereum/wiki/wiki/%5BEnglish%5D-RLP|RLP}
- * @param {Buffer,String,Integer,Array} data - will be converted to buffer
- * @returns {Array} - returns decode Array of Buffers containg the original message
- **/
-exports.decode = function (input, stream) {
-  if (!input || input.length === 0) {
-    return new Buffer([])
-  }
+  var stream = this;
 
-  input = toBuffer(input)
-  var decoded = _decode(input)
+  // start out asking for a readable event once data is transformed.
+  this._readableState.needReadable = true;
 
-  if (stream) {
-    return decoded
-  }
+  // we have implemented the _read method, and done the other things
+  // that Readable wants before the first _read call, so unset the
+  // sync guard flag.
+  this._readableState.sync = false;
 
-  assert.equal(decoded.remainder.length, 0, 'invalid remainder')
-  return decoded.data
-}
+  if (options) {
+    if (typeof options.transform === 'function') this._transform = options.transform;
 
-exports.getLength = function (input) {
-  if (!input || input.length === 0) {
-    return new Buffer([])
+    if (typeof options.flush === 'function') this._flush = options.flush;
   }
 
-  input = toBuffer(input)
-  var firstByte = input[0]
-  if (firstByte <= 0x7f) {
-    return input.length
-  } else if (firstByte <= 0xb7) {
-    return firstByte - 0x7f
-  } else if (firstByte <= 0xbf) {
-    return firstByte - 0xb6
-  } else if (firstByte <= 0xf7) {
-    // a list between  0-55 bytes long
-    return firstByte - 0xbf
-  } else {
-    // a list  over 55 bytes long
-    var llength = firstByte - 0xf6
-    var length = safeParseInt(input.slice(1, llength).toString('hex'), 16)
-    return llength + length
-  }
+  // When the writable side finishes, then flush out anything remaining.
+  this.once('prefinish', function () {
+    if (typeof this._flush === 'function') this._flush(function (er, data) {
+      done(stream, er, data);
+    });else done(stream);
+  });
 }
 
-function _decode (input) {
-  var length, llength, data, innerRemainder, d
-  var decoded = []
-  var firstByte = input[0]
-
-  if (firstByte <= 0x7f) {
-    // a single byte whose value is in the [0x00, 0x7f] range, that byte is its own RLP encoding.
-    return {
-      data: input.slice(0, 1),
-      remainder: input.slice(1)
-    }
-  } else if (firstByte <= 0xb7) {
-    // string is 0-55 bytes long. A single byte with value 0x80 plus the length of the string followed by the string
-    // The range of the first byte is [0x80, 0xb7]
-    length = firstByte - 0x7f
-
-    // set 0x80 null to 0
-    if (firstByte === 0x80) {
-      data = new Buffer([])
-    } else {
-      data = input.slice(1, length)
-    }
+Transform.prototype.push = function (chunk, encoding) {
+  this._transformState.needTransform = false;
+  return Duplex.prototype.push.call(this, chunk, encoding);
+};
 
-    if (length === 2 && data[0] < 0x80) {
-      throw new Error('invalid rlp encoding: byte must be less 0x80')
-    }
+// This is the part where you do stuff!
+// override this function in implementation classes.
+// 'chunk' is an input chunk.
+//
+// Call `push(newChunk)` to pass along transformed output
+// to the readable side.  You may call 'push' zero or more times.
+//
+// Call `cb(err)` when you are done with this chunk.  If you pass
+// an error, then that'll put the hurt on the whole operation.  If you
+// never call cb(), then you'll never get another chunk.
+Transform.prototype._transform = function (chunk, encoding, cb) {
+  throw new Error('_transform() is not implemented');
+};
 
-    return {
-      data: data,
-      remainder: input.slice(length)
-    }
-  } else if (firstByte <= 0xbf) {
-    llength = firstByte - 0xb6
-    length = safeParseInt(input.slice(1, llength).toString('hex'), 16)
-    data = input.slice(llength, length + llength)
-    if (data.length < length) {
-      throw (new Error('invalid RLP'))
-    }
+Transform.prototype._write = function (chunk, encoding, cb) {
+  var ts = this._transformState;
+  ts.writecb = cb;
+  ts.writechunk = chunk;
+  ts.writeencoding = encoding;
+  if (!ts.transforming) {
+    var rs = this._readableState;
+    if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark);
+  }
+};
 
-    return {
-      data: data,
-      remainder: input.slice(length + llength)
-    }
-  } else if (firstByte <= 0xf7) {
-    // a list between  0-55 bytes long
-    length = firstByte - 0xbf
-    innerRemainder = input.slice(1, length)
-    while (innerRemainder.length) {
-      d = _decode(innerRemainder)
-      decoded.push(d.data)
-      innerRemainder = d.remainder
-    }
+// Doesn't matter what the args are here.
+// _transform does all the work.
+// That we got here means that the readable side wants more data.
+Transform.prototype._read = function (n) {
+  var ts = this._transformState;
 
-    return {
-      data: decoded,
-      remainder: input.slice(length)
-    }
+  if (ts.writechunk !== null && ts.writecb && !ts.transforming) {
+    ts.transforming = true;
+    this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);
   } else {
-    // a list  over 55 bytes long
-    llength = firstByte - 0xf6
-    length = safeParseInt(input.slice(1, llength).toString('hex'), 16)
-    var totalLength = llength + length
-    if (totalLength > input.length) {
-      throw new Error('invalid rlp: total length is larger than the data')
-    }
+    // mark that we need a transform, so that any data that comes in
+    // will get processed, now that we've asked for it.
+    ts.needTransform = true;
+  }
+};
 
-    innerRemainder = input.slice(llength, totalLength)
-    if (innerRemainder.length === 0) {
-      throw new Error('invalid rlp, List has a invalid length')
-    }
+Transform.prototype._destroy = function (err, cb) {
+  var _this = this;
 
-    while (innerRemainder.length) {
-      d = _decode(innerRemainder)
-      decoded.push(d.data)
-      innerRemainder = d.remainder
-    }
-    return {
-      data: decoded,
-      remainder: input.slice(totalLength)
-    }
-  }
-}
+  Duplex.prototype._destroy.call(this, err, function (err2) {
+    cb(err2);
+    _this.emit('close');
+  });
+};
+
+function done(stream, er, data) {
+  if (er) return stream.emit('error', er);
 
-function isHexPrefixed (str) {
-  return str.slice(0, 2) === '0x'
-}
+  if (data !== null && data !== undefined) stream.push(data);
 
-// Removes 0x from a given String
-function stripHexPrefix (str) {
-  if (typeof str !== 'string') {
-    return str
-  }
-  return isHexPrefixed(str) ? str.slice(2) : str
-}
+  // if there's nothing in the write buffer, then that means
+  // that nothing more will ever be provided
+  var ws = stream._writableState;
+  var ts = stream._transformState;
 
-function intToHex (i) {
-  var hex = i.toString(16)
-  if (hex.length % 2) {
-    hex = '0' + hex
-  }
+  if (ws.length) throw new Error('Calling transform done when ws.length != 0');
 
-  return hex
-}
+  if (ts.transforming) throw new Error('Calling transform done when still transforming');
 
-function padToEven (a) {
-  if (a.length % 2) a = '0' + a
-  return a
+  return stream.push(null);
 }
+},{"./_stream_duplex":27,"core-util-is":14,"inherits":21}],31:[function(require,module,exports){
+(function (process,global){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-function intToBuffer (i) {
-  var hex = intToHex(i)
-  return new Buffer(hex, 'hex')
-}
+// A bit simpler than readable streams.
+// Implement an async ._write(chunk, encoding, cb), and it'll handle all
+// the drain event emission and buffering.
 
-function toBuffer (v) {
-  if (!Buffer.isBuffer(v)) {
-    if (typeof v === 'string') {
-      if (isHexPrefixed(v)) {
-        v = new Buffer(padToEven(stripHexPrefix(v)), 'hex')
-      } else {
-        v = new Buffer(v)
-      }
-    } else if (typeof v === 'number') {
-      if (!v) {
-        v = new Buffer([])
-      } else {
-        v = intToBuffer(v)
-      }
-    } else if (v === null || v === undefined) {
-      v = new Buffer([])
-    } else if (v.toArray) {
-      // converts a BN to a Buffer
-      v = new Buffer(v.toArray())
-    } else {
-      throw new Error('invalid type')
-    }
-  }
-  return v
-}
+'use strict';
 
-}).call(this,require("buffer").Buffer)
-},{"assert":1,"buffer":5}],73:[function(require,module,exports){
-'use strict'
-module.exports = require('./lib')(require('./lib/elliptic'))
+/*<replacement>*/
 
-},{"./lib":77,"./lib/elliptic":76}],74:[function(require,module,exports){
-(function (Buffer){
-'use strict'
-var toString = Object.prototype.toString
+var processNextTick = require('process-nextick-args');
+/*</replacement>*/
 
-// TypeError
-exports.isArray = function (value, message) {
-  if (!Array.isArray(value)) throw TypeError(message)
-}
+module.exports = Writable;
 
-exports.isBoolean = function (value, message) {
-  if (toString.call(value) !== '[object Boolean]') throw TypeError(message)
+/* <replacement> */
+function WriteReq(chunk, encoding, cb) {
+  this.chunk = chunk;
+  this.encoding = encoding;
+  this.callback = cb;
+  this.next = null;
 }
 
-exports.isBuffer = function (value, message) {
-  if (!Buffer.isBuffer(value)) throw TypeError(message)
-}
+// It seems a linked list but it is not
+// there will be only 2 of these for each stream
+function CorkedRequest(state) {
+  var _this = this;
 
-exports.isFunction = function (value, message) {
-  if (toString.call(value) !== '[object Function]') throw TypeError(message)
+  this.next = null;
+  this.entry = null;
+  this.finish = function () {
+    onCorkedFinish(_this, state);
+  };
 }
+/* </replacement> */
 
-exports.isNumber = function (value, message) {
-  if (toString.call(value) !== '[object Number]') throw TypeError(message)
-}
+/*<replacement>*/
+var asyncWrite = !process.browser && ['v0.10', 'v0.9.'].indexOf(process.version.slice(0, 5)) > -1 ? setImmediate : processNextTick;
+/*</replacement>*/
 
-exports.isObject = function (value, message) {
-  if (toString.call(value) !== '[object Object]') throw TypeError(message)
-}
+/*<replacement>*/
+var Duplex;
+/*</replacement>*/
 
-// RangeError
-exports.isBufferLength = function (buffer, length, message) {
-  if (buffer.length !== length) throw RangeError(message)
-}
+Writable.WritableState = WritableState;
 
-exports.isBufferLength2 = function (buffer, length1, length2, message) {
-  if (buffer.length !== length1 && buffer.length !== length2) throw RangeError(message)
-}
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
 
-exports.isLengthGTZero = function (value, message) {
-  if (value.length === 0) throw RangeError(message)
-}
+/*<replacement>*/
+var internalUtil = {
+  deprecate: require('util-deprecate')
+};
+/*</replacement>*/
 
-exports.isNumberInInterval = function (number, x, y, message) {
-  if (number <= x || number >= y) throw RangeError(message)
+/*<replacement>*/
+var Stream = require('./internal/streams/stream');
+/*</replacement>*/
+
+/*<replacement>*/
+var Buffer = require('safe-buffer').Buffer;
+var OurUint8Array = global.Uint8Array || function () {};
+function _uint8ArrayToBuffer(chunk) {
+  return Buffer.from(chunk);
 }
+function _isUint8Array(obj) {
+  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
+}
+/*</replacement>*/
 
-}).call(this,{"isBuffer":require("../../../../../.nvm/versions/node/v7.5.0/lib/node_modules/browserify/node_modules/is-buffer/index.js")})
-},{"../../../../../.nvm/versions/node/v7.5.0/lib/node_modules/browserify/node_modules/is-buffer/index.js":10}],75:[function(require,module,exports){
-(function (Buffer){
-'use strict'
-var bip66 = require('bip66')
+var destroyImpl = require('./internal/streams/destroy');
 
-var EC_PRIVKEY_EXPORT_DER_COMPRESSED = new Buffer([
-  // begin
-  0x30, 0x81, 0xd3, 0x02, 0x01, 0x01, 0x04, 0x20,
-  // private key
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  // middle
-  0xa0, 0x81, 0x85, 0x30, 0x81, 0x82, 0x02, 0x01, 0x01, 0x30, 0x2c, 0x06, 0x07, 0x2a, 0x86, 0x48,
-  0xcE, 0x3d, 0x01, 0x01, 0x02, 0x21, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-  0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-  0xff, 0xff, 0xfE, 0xff, 0xff, 0xfc, 0x2f, 0x30, 0x06, 0x04, 0x01, 0x00, 0x04, 0x01, 0x07, 0x04,
-  0x21, 0x02, 0x79, 0xbE, 0x66, 0x7E, 0xf9, 0xdc, 0xbb, 0xac, 0x55, 0xa0, 0x62, 0x95, 0xcE, 0x87,
-  0x0b, 0x07, 0x02, 0x9b, 0xfc, 0xdb, 0x2d, 0xcE, 0x28, 0xd9, 0x59, 0xf2, 0x81, 0x5b, 0x16, 0xf8,
-  0x17, 0x98, 0x02, 0x21, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-  0xff, 0xff, 0xff, 0xff, 0xfE, 0xba, 0xaE, 0xdc, 0xE6, 0xaf, 0x48, 0xa0, 0x3b, 0xbf, 0xd2, 0x5E,
-  0x8c, 0xd0, 0x36, 0x41, 0x41, 0x02, 0x01, 0x01, 0xa1, 0x24, 0x03, 0x22, 0x00,
-  // public key
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00
-])
+util.inherits(Writable, Stream);
 
-var EC_PRIVKEY_EXPORT_DER_UNCOMPRESSED = new Buffer([
-  // begin
-  0x30, 0x82, 0x01, 0x13, 0x02, 0x01, 0x01, 0x04, 0x20,
-  // private key
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  // middle
-  0xa0, 0x81, 0xa5, 0x30, 0x81, 0xa2, 0x02, 0x01, 0x01, 0x30, 0x2c, 0x06, 0x07, 0x2a, 0x86, 0x48,
-  0xcE, 0x3d, 0x01, 0x01, 0x02, 0x21, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-  0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-  0xff, 0xff, 0xfE, 0xff, 0xff, 0xfc, 0x2f, 0x30, 0x06, 0x04, 0x01, 0x00, 0x04, 0x01, 0x07, 0x04,
-  0x41, 0x04, 0x79, 0xbE, 0x66, 0x7E, 0xf9, 0xdc, 0xbb, 0xac, 0x55, 0xa0, 0x62, 0x95, 0xcE, 0x87,
-  0x0b, 0x07, 0x02, 0x9b, 0xfc, 0xdb, 0x2d, 0xcE, 0x28, 0xd9, 0x59, 0xf2, 0x81, 0x5b, 0x16, 0xf8,
-  0x17, 0x98, 0x48, 0x3a, 0xda, 0x77, 0x26, 0xa3, 0xc4, 0x65, 0x5d, 0xa4, 0xfb, 0xfc, 0x0E, 0x11,
-  0x08, 0xa8, 0xfd, 0x17, 0xb4, 0x48, 0xa6, 0x85, 0x54, 0x19, 0x9c, 0x47, 0xd0, 0x8f, 0xfb, 0x10,
-  0xd4, 0xb8, 0x02, 0x21, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-  0xff, 0xff, 0xff, 0xff, 0xfE, 0xba, 0xaE, 0xdc, 0xE6, 0xaf, 0x48, 0xa0, 0x3b, 0xbf, 0xd2, 0x5E,
-  0x8c, 0xd0, 0x36, 0x41, 0x41, 0x02, 0x01, 0x01, 0xa1, 0x44, 0x03, 0x42, 0x00,
-  // public key
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00
-])
+function nop() {}
 
-var ZERO_BUFFER_32 = new Buffer([
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-])
+function WritableState(options, stream) {
+  Duplex = Duplex || require('./_stream_duplex');
 
-exports.privateKeyExport = function (privateKey, publicKey, compressed) {
-  var result = new Buffer(compressed ? EC_PRIVKEY_EXPORT_DER_COMPRESSED : EC_PRIVKEY_EXPORT_DER_UNCOMPRESSED)
-  privateKey.copy(result, compressed ? 8 : 9)
-  publicKey.copy(result, compressed ? 181 : 214)
-  return result
-}
+  options = options || {};
 
-exports.privateKeyImport = function (privateKey) {
-  var length = privateKey.length
+  // object stream flag to indicate whether or not this stream
+  // contains buffers or objects.
+  this.objectMode = !!options.objectMode;
 
-  // sequence header
-  var index = 0
-  if (length < index + 1 || privateKey[index] !== 0x30) return
-  index += 1
+  if (stream instanceof Duplex) this.objectMode = this.objectMode || !!options.writableObjectMode;
 
-  // sequence length constructor
-  if (length < index + 1 || !(privateKey[index] & 0x80)) return
+  // the point at which write() starts returning false
+  // Note: 0 is a valid value, means that we always return false if
+  // the entire buffer is not flushed immediately on write()
+  var hwm = options.highWaterMark;
+  var defaultHwm = this.objectMode ? 16 : 16 * 1024;
+  this.highWaterMark = hwm || hwm === 0 ? hwm : defaultHwm;
 
-  var lenb = privateKey[index] & 0x7f
-  index += 1
-  if (lenb < 1 || lenb > 2) return
-  if (length < index + lenb) return
+  // cast to ints.
+  this.highWaterMark = Math.floor(this.highWaterMark);
 
-  // sequence length
-  var len = privateKey[index + lenb - 1] | (lenb > 1 ? privateKey[index + lenb - 2] << 8 : 0)
-  index += lenb
-  if (length < index + len) return
+  // if _final has been called
+  this.finalCalled = false;
 
-  // sequence element 0: version number (=1)
-  if (length < index + 3 ||
-      privateKey[index] !== 0x02 ||
-      privateKey[index + 1] !== 0x01 ||
-      privateKey[index + 2] !== 0x01) {
-    return
-  }
-  index += 3
+  // drain event flag.
+  this.needDrain = false;
+  // at the start of calling end()
+  this.ending = false;
+  // when end() has been called, and returned
+  this.ended = false;
+  // when 'finish' is emitted
+  this.finished = false;
 
-  // sequence element 1: octet string, up to 32 bytes
-  if (length < index + 2 ||
-      privateKey[index] !== 0x04 ||
-      privateKey[index + 1] > 0x20 ||
-      length < index + 2 + privateKey[index + 1]) {
-    return
-  }
+  // has it been destroyed
+  this.destroyed = false;
 
-  return privateKey.slice(index + 2, index + 2 + privateKey[index + 1])
-}
+  // should we decode strings into buffers before passing to _write?
+  // this is here so that some node-core streams can optimize string
+  // handling at a lower level.
+  var noDecode = options.decodeStrings === false;
+  this.decodeStrings = !noDecode;
 
-exports.signatureExport = function (sigObj) {
-  var r = Buffer.concat([new Buffer([0]), sigObj.r])
-  for (var lenR = 33, posR = 0; lenR > 1 && r[posR] === 0x00 && !(r[posR + 1] & 0x80); --lenR, ++posR);
+  // Crypto is kind of old and crusty.  Historically, its default string
+  // encoding is 'binary' so we have to make this configurable.
+  // Everything else in the universe uses 'utf8', though.
+  this.defaultEncoding = options.defaultEncoding || 'utf8';
 
-  var s = Buffer.concat([new Buffer([0]), sigObj.s])
-  for (var lenS = 33, posS = 0; lenS > 1 && s[posS] === 0x00 && !(s[posS + 1] & 0x80); --lenS, ++posS);
+  // not an actual buffer we keep track of, but a measurement
+  // of how much we're waiting to get pushed to some underlying
+  // socket or file.
+  this.length = 0;
 
-  return bip66.encode(r.slice(posR), s.slice(posS))
-}
+  // a flag to see when we're in the middle of a write.
+  this.writing = false;
 
-exports.signatureImport = function (sig) {
-  var r = new Buffer(ZERO_BUFFER_32)
-  var s = new Buffer(ZERO_BUFFER_32)
+  // when true all writes will be buffered until .uncork() call
+  this.corked = 0;
 
-  try {
-    var sigObj = bip66.decode(sig)
-    if (sigObj.r.length === 33 && sigObj.r[0] === 0x00) sigObj.r = sigObj.r.slice(1)
-    if (sigObj.r.length > 32) throw new Error('R length is too long')
-    if (sigObj.s.length === 33 && sigObj.s[0] === 0x00) sigObj.s = sigObj.s.slice(1)
-    if (sigObj.s.length > 32) throw new Error('S length is too long')
-  } catch (err) {
-    return
-  }
+  // a flag to be able to tell if the onwrite cb is called immediately,
+  // or on a later tick.  We set this to true at first, because any
+  // actions that shouldn't happen until "later" should generally also
+  // not happen before the first write call.
+  this.sync = true;
 
-  sigObj.r.copy(r, 32 - sigObj.r.length)
-  sigObj.s.copy(s, 32 - sigObj.s.length)
+  // a flag to know if we're processing previously buffered items, which
+  // may call the _write() callback in the same tick, so that we don't
+  // end up in an overlapped onwrite situation.
+  this.bufferProcessing = false;
 
-  return { r: r, s: s }
-}
+  // the callback that's passed to _write(chunk,cb)
+  this.onwrite = function (er) {
+    onwrite(stream, er);
+  };
 
-exports.signatureImportLax = function (sig) {
-  var r = new Buffer(ZERO_BUFFER_32)
-  var s = new Buffer(ZERO_BUFFER_32)
+  // the callback that the user supplies to write(chunk,encoding,cb)
+  this.writecb = null;
 
-  var length = sig.length
-  var index = 0
+  // the amount that is being written when _write is called.
+  this.writelen = 0;
 
-  // sequence tag byte
-  if (sig[index++] !== 0x30) return
+  this.bufferedRequest = null;
+  this.lastBufferedRequest = null;
 
-  // sequence length byte
-  var lenbyte = sig[index++]
-  if (lenbyte & 0x80) {
-    index += lenbyte - 0x80
-    if (index > length) return
-  }
+  // number of pending user-supplied write callbacks
+  // this must be 0 before 'finish' can be emitted
+  this.pendingcb = 0;
 
-  // sequence tag byte for r
-  if (sig[index++] !== 0x02) return
+  // emit prefinish if the only thing we're waiting for is _write cbs
+  // This is relevant for synchronous Transform streams
+  this.prefinished = false;
 
-  // length for r
-  var rlen = sig[index++]
-  if (rlen & 0x80) {
-    lenbyte = rlen - 0x80
-    if (index + lenbyte > length) return
-    for (; lenbyte > 0 && sig[index] === 0x00; index += 1, lenbyte -= 1);
-    for (rlen = 0; lenbyte > 0; index += 1, lenbyte -= 1) rlen = (rlen << 8) + sig[index]
-  }
-  if (rlen > length - index) return
-  var rindex = index
-  index += rlen
+  // True if the error was already emitted and should not be thrown again
+  this.errorEmitted = false;
 
-  // sequence tag byte for s
-  if (sig[index++] !== 0x02) return
+  // count buffered requests
+  this.bufferedRequestCount = 0;
 
-  // length for s
-  var slen = sig[index++]
-  if (slen & 0x80) {
-    lenbyte = slen - 0x80
-    if (index + lenbyte > length) return
-    for (; lenbyte > 0 && sig[index] === 0x00; index += 1, lenbyte -= 1);
-    for (slen = 0; lenbyte > 0; index += 1, lenbyte -= 1) slen = (slen << 8) + sig[index]
+  // allocate the first CorkedRequest, there is always
+  // one allocated and free to use, and we maintain at most two
+  this.corkedRequestsFree = new CorkedRequest(this);
+}
+
+WritableState.prototype.getBuffer = function getBuffer() {
+  var current = this.bufferedRequest;
+  var out = [];
+  while (current) {
+    out.push(current);
+    current = current.next;
   }
-  if (slen > length - index) return
-  var sindex = index
-  index += slen
+  return out;
+};
 
-  // ignore leading zeros in r
-  for (; rlen > 0 && sig[rindex] === 0x00; rlen -= 1, rindex += 1);
-  // copy r value
-  if (rlen > 32) return
-  var rvalue = sig.slice(rindex, rindex + rlen)
-  rvalue.copy(r, 32 - rvalue.length)
+(function () {
+  try {
+    Object.defineProperty(WritableState.prototype, 'buffer', {
+      get: internalUtil.deprecate(function () {
+        return this.getBuffer();
+      }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003')
+    });
+  } catch (_) {}
+})();
 
-  // ignore leading zeros in s
-  for (; slen > 0 && sig[sindex] === 0x00; slen -= 1, sindex += 1);
-  // copy s value
-  if (slen > 32) return
-  var svalue = sig.slice(sindex, sindex + slen)
-  svalue.copy(s, 32 - svalue.length)
+// Test _writableState for inheritance to account for Duplex streams,
+// whose prototype chain only points to Readable.
+var realHasInstance;
+if (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') {
+  realHasInstance = Function.prototype[Symbol.hasInstance];
+  Object.defineProperty(Writable, Symbol.hasInstance, {
+    value: function (object) {
+      if (realHasInstance.call(this, object)) return true;
 
-  return { r: r, s: s }
+      return object && object._writableState instanceof WritableState;
+    }
+  });
+} else {
+  realHasInstance = function (object) {
+    return object instanceof this;
+  };
 }
 
-}).call(this,require("buffer").Buffer)
-},{"bip66":32,"buffer":5}],76:[function(require,module,exports){
-(function (Buffer){
-'use strict'
-var createHash = require('create-hash')
-var BN = require('bn.js')
-var EC = require('elliptic').ec
+function Writable(options) {
+  Duplex = Duplex || require('./_stream_duplex');
 
-var messages = require('../messages.json')
+  // Writable ctor is applied to Duplexes, too.
+  // `realHasInstance` is necessary because using plain `instanceof`
+  // would return false, as no `_writableState` property is attached.
 
-var ec = new EC('secp256k1')
-var ecparams = ec.curve
+  // Trying to use the custom `instanceof` for Writable here will also break the
+  // Node.js LazyTransform implementation, which has a non-trivial getter for
+  // `_writableState` that would lead to infinite recursion.
+  if (!realHasInstance.call(Writable, this) && !(this instanceof Duplex)) {
+    return new Writable(options);
+  }
 
-function loadCompressedPublicKey (first, xBuffer) {
-  var x = new BN(xBuffer)
+  this._writableState = new WritableState(options, this);
 
-  // overflow
-  if (x.cmp(ecparams.p) >= 0) return null
-  x = x.toRed(ecparams.red)
+  // legacy.
+  this.writable = true;
 
-  // compute corresponding Y
-  var y = x.redSqr().redIMul(x).redIAdd(ecparams.b).redSqrt()
-  if ((first === 0x03) !== y.isOdd()) y = y.redNeg()
+  if (options) {
+    if (typeof options.write === 'function') this._write = options.write;
 
-  return ec.keyPair({ pub: { x: x, y: y } })
+    if (typeof options.writev === 'function') this._writev = options.writev;
+
+    if (typeof options.destroy === 'function') this._destroy = options.destroy;
+
+    if (typeof options.final === 'function') this._final = options.final;
+  }
+
+  Stream.call(this);
 }
 
-function loadUncompressedPublicKey (first, xBuffer, yBuffer) {
-  var x = new BN(xBuffer)
-  var y = new BN(yBuffer)
+// Otherwise people can pipe Writable streams, which is just wrong.
+Writable.prototype.pipe = function () {
+  this.emit('error', new Error('Cannot pipe, not readable'));
+};
 
-  // overflow
-  if (x.cmp(ecparams.p) >= 0 || y.cmp(ecparams.p) >= 0) return null
+function writeAfterEnd(stream, cb) {
+  var er = new Error('write after end');
+  // TODO: defer error events consistently everywhere, not just the cb
+  stream.emit('error', er);
+  processNextTick(cb, er);
+}
 
-  x = x.toRed(ecparams.red)
-  y = y.toRed(ecparams.red)
+// Checks that a user-supplied chunk is valid, especially for the particular
+// mode the stream is in. Currently this means that `null` is never accepted
+// and undefined/non-string values are only allowed in object mode.
+function validChunk(stream, state, chunk, cb) {
+  var valid = true;
+  var er = false;
 
-  // is odd flag
-  if ((first === 0x06 || first === 0x07) && y.isOdd() !== (first === 0x07)) return null
+  if (chunk === null) {
+    er = new TypeError('May not write null values to stream');
+  } else if (typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
+    er = new TypeError('Invalid non-string/buffer chunk');
+  }
+  if (er) {
+    stream.emit('error', er);
+    processNextTick(cb, er);
+    valid = false;
+  }
+  return valid;
+}
 
-  // x*x*x + b = y*y
-  var x3 = x.redSqr().redIMul(x)
-  if (!y.redSqr().redISub(x3.redIAdd(ecparams.b)).isZero()) return null
+Writable.prototype.write = function (chunk, encoding, cb) {
+  var state = this._writableState;
+  var ret = false;
+  var isBuf = _isUint8Array(chunk) && !state.objectMode;
 
-  return ec.keyPair({ pub: { x: x, y: y } })
-}
+  if (isBuf && !Buffer.isBuffer(chunk)) {
+    chunk = _uint8ArrayToBuffer(chunk);
+  }
 
-function loadPublicKey (publicKey) {
-  var first = publicKey[0]
-  switch (first) {
-    case 0x02:
-    case 0x03:
-      if (publicKey.length !== 33) return null
-      return loadCompressedPublicKey(first, publicKey.slice(1, 33))
-    case 0x04:
-    case 0x06:
-    case 0x07:
-      if (publicKey.length !== 65) return null
-      return loadUncompressedPublicKey(first, publicKey.slice(1, 33), publicKey.slice(33, 65))
-    default:
-      return null
+  if (typeof encoding === 'function') {
+    cb = encoding;
+    encoding = null;
   }
-}
 
-exports.privateKeyVerify = function (privateKey) {
-  var bn = new BN(privateKey)
-  return bn.cmp(ecparams.n) < 0 && !bn.isZero()
-}
+  if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;
 
-exports.privateKeyExport = function (privateKey, compressed) {
-  var d = new BN(privateKey)
-  if (d.cmp(ecparams.n) >= 0 || d.isZero()) throw new Error(messages.EC_PRIVATE_KEY_EXPORT_DER_FAIL)
+  if (typeof cb !== 'function') cb = nop;
 
-  return new Buffer(ec.keyFromPrivate(privateKey).getPublic(compressed, true))
-}
+  if (state.ended) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) {
+    state.pendingcb++;
+    ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb);
+  }
 
-exports.privateKeyTweakAdd = function (privateKey, tweak) {
-  var bn = new BN(tweak)
-  if (bn.cmp(ecparams.n) >= 0) throw new Error(messages.EC_PRIVATE_KEY_TWEAK_ADD_FAIL)
+  return ret;
+};
 
-  bn.iadd(new BN(privateKey))
-  if (bn.cmp(ecparams.n) >= 0) bn.isub(ecparams.n)
-  if (bn.isZero()) throw new Error(messages.EC_PRIVATE_KEY_TWEAK_ADD_FAIL)
+Writable.prototype.cork = function () {
+  var state = this._writableState;
 
-  return bn.toArrayLike(Buffer, 'be', 32)
-}
+  state.corked++;
+};
 
-exports.privateKeyTweakMul = function (privateKey, tweak) {
-  var bn = new BN(tweak)
-  if (bn.cmp(ecparams.n) >= 0 || bn.isZero()) throw new Error(messages.EC_PRIVATE_KEY_TWEAK_MUL_FAIL)
+Writable.prototype.uncork = function () {
+  var state = this._writableState;
 
-  bn.imul(new BN(privateKey))
-  if (bn.cmp(ecparams.n)) bn = bn.umod(ecparams.n)
+  if (state.corked) {
+    state.corked--;
 
-  return bn.toArrayLike(Buffer, 'be', 32)
-}
+    if (!state.writing && !state.corked && !state.finished && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state);
+  }
+};
 
-exports.publicKeyCreate = function (privateKey, compressed) {
-  var d = new BN(privateKey)
-  if (d.cmp(ecparams.n) >= 0 || d.isZero()) throw new Error(messages.EC_PUBLIC_KEY_CREATE_FAIL)
+Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {
+  // node::ParseEncoding() requires lower case.
+  if (typeof encoding === 'string') encoding = encoding.toLowerCase();
+  if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new TypeError('Unknown encoding: ' + encoding);
+  this._writableState.defaultEncoding = encoding;
+  return this;
+};
 
-  return new Buffer(ec.keyFromPrivate(privateKey).getPublic(compressed, true))
+function decodeChunk(state, chunk, encoding) {
+  if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {
+    chunk = Buffer.from(chunk, encoding);
+  }
+  return chunk;
 }
 
-exports.publicKeyConvert = function (publicKey, compressed) {
-  var pair = loadPublicKey(publicKey)
-  if (pair === null) throw new Error(messages.EC_PUBLIC_KEY_PARSE_FAIL)
-
-  return new Buffer(pair.getPublic(compressed, true))
-}
+// if we're already writing something, then just put this
+// in the queue, and wait our turn.  Otherwise, call _write
+// If we return false, then we need a drain event, so set that flag.
+function writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) {
+  if (!isBuf) {
+    var newChunk = decodeChunk(state, chunk, encoding);
+    if (chunk !== newChunk) {
+      isBuf = true;
+      encoding = 'buffer';
+      chunk = newChunk;
+    }
+  }
+  var len = state.objectMode ? 1 : chunk.length;
 
-exports.publicKeyVerify = function (publicKey) {
-  return loadPublicKey(publicKey) !== null
-}
+  state.length += len;
 
-exports.publicKeyTweakAdd = function (publicKey, tweak, compressed) {
-  var pair = loadPublicKey(publicKey)
-  if (pair === null) throw new Error(messages.EC_PUBLIC_KEY_PARSE_FAIL)
+  var ret = state.length < state.highWaterMark;
+  // we must ensure that previous needDrain will not be reset to false.
+  if (!ret) state.needDrain = true;
 
-  tweak = new BN(tweak)
-  if (tweak.cmp(ecparams.n) >= 0) throw new Error(messages.EC_PUBLIC_KEY_TWEAK_ADD_FAIL)
+  if (state.writing || state.corked) {
+    var last = state.lastBufferedRequest;
+    state.lastBufferedRequest = {
+      chunk: chunk,
+      encoding: encoding,
+      isBuf: isBuf,
+      callback: cb,
+      next: null
+    };
+    if (last) {
+      last.next = state.lastBufferedRequest;
+    } else {
+      state.bufferedRequest = state.lastBufferedRequest;
+    }
+    state.bufferedRequestCount += 1;
+  } else {
+    doWrite(stream, state, false, len, chunk, encoding, cb);
+  }
 
-  return new Buffer(ecparams.g.mul(tweak).add(pair.pub).encode(true, compressed))
+  return ret;
 }
 
-exports.publicKeyTweakMul = function (publicKey, tweak, compressed) {
-  var pair = loadPublicKey(publicKey)
-  if (pair === null) throw new Error(messages.EC_PUBLIC_KEY_PARSE_FAIL)
+function doWrite(stream, state, writev, len, chunk, encoding, cb) {
+  state.writelen = len;
+  state.writecb = cb;
+  state.writing = true;
+  state.sync = true;
+  if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite);
+  state.sync = false;
+}
 
-  tweak = new BN(tweak)
-  if (tweak.cmp(ecparams.n) >= 0 || tweak.isZero()) throw new Error(messages.EC_PUBLIC_KEY_TWEAK_MUL_FAIL)
+function onwriteError(stream, state, sync, er, cb) {
+  --state.pendingcb;
 
-  return new Buffer(pair.pub.mul(tweak).encode(true, compressed))
+  if (sync) {
+    // defer the callback if we are being called synchronously
+    // to avoid piling up things on the stack
+    processNextTick(cb, er);
+    // this can emit finish, and it will always happen
+    // after error
+    processNextTick(finishMaybe, stream, state);
+    stream._writableState.errorEmitted = true;
+    stream.emit('error', er);
+  } else {
+    // the caller expect this to happen before if
+    // it is async
+    cb(er);
+    stream._writableState.errorEmitted = true;
+    stream.emit('error', er);
+    // this can emit finish, but finish must
+    // always follow error
+    finishMaybe(stream, state);
+  }
 }
 
-exports.publicKeyCombine = function (publicKeys, compressed) {
-  var pairs = new Array(publicKeys.length)
-  for (var i = 0; i < publicKeys.length; ++i) {
-    pairs[i] = loadPublicKey(publicKeys[i])
-    if (pairs[i] === null) throw new Error(messages.EC_PUBLIC_KEY_PARSE_FAIL)
-  }
+function onwriteStateUpdate(state) {
+  state.writing = false;
+  state.writecb = null;
+  state.length -= state.writelen;
+  state.writelen = 0;
+}
 
-  var point = pairs[0].pub
-  for (var j = 1; j < pairs.length; ++j) point = point.add(pairs[j].pub)
-  if (point.isInfinity()) throw new Error(messages.EC_PUBLIC_KEY_COMBINE_FAIL)
+function onwrite(stream, er) {
+  var state = stream._writableState;
+  var sync = state.sync;
+  var cb = state.writecb;
 
-  return new Buffer(point.encode(true, compressed))
-}
+  onwriteStateUpdate(state);
 
-exports.signatureNormalize = function (signature) {
-  var r = new BN(signature.slice(0, 32))
-  var s = new BN(signature.slice(32, 64))
-  if (r.cmp(ecparams.n) >= 0 || s.cmp(ecparams.n) >= 0) throw new Error(messages.ECDSA_SIGNATURE_PARSE_FAIL)
+  if (er) onwriteError(stream, state, sync, er, cb);else {
+    // Check if we're actually ready to finish, but don't emit yet
+    var finished = needFinish(state);
 
-  var result = new Buffer(signature)
-  if (s.cmp(ec.nh) === 1) ecparams.n.sub(s).toArrayLike(Buffer, 'be', 32).copy(result, 32)
+    if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {
+      clearBuffer(stream, state);
+    }
 
-  return result
+    if (sync) {
+      /*<replacement>*/
+      asyncWrite(afterWrite, stream, state, finished, cb);
+      /*</replacement>*/
+    } else {
+      afterWrite(stream, state, finished, cb);
+    }
+  }
 }
 
-exports.signatureExport = function (signature) {
-  var r = signature.slice(0, 32)
-  var s = signature.slice(32, 64)
-  if (new BN(r).cmp(ecparams.n) >= 0 || new BN(s).cmp(ecparams.n) >= 0) throw new Error(messages.ECDSA_SIGNATURE_PARSE_FAIL)
+function afterWrite(stream, state, finished, cb) {
+  if (!finished) onwriteDrain(stream, state);
+  state.pendingcb--;
+  cb();
+  finishMaybe(stream, state);
+}
 
-  return { r: r, s: s }
+// Must force callback to be called on nextTick, so that we don't
+// emit 'drain' before the write() consumer gets the 'false' return
+// value, and has a chance to attach a 'drain' listener.
+function onwriteDrain(stream, state) {
+  if (state.length === 0 && state.needDrain) {
+    state.needDrain = false;
+    stream.emit('drain');
+  }
 }
 
-exports.signatureImport = function (sigObj) {
-  var r = new BN(sigObj.r)
-  if (r.cmp(ecparams.n) >= 0) r = new BN(0)
+// if there's something in the buffer waiting, then process it
+function clearBuffer(stream, state) {
+  state.bufferProcessing = true;
+  var entry = state.bufferedRequest;
 
-  var s = new BN(sigObj.s)
-  if (s.cmp(ecparams.n) >= 0) s = new BN(0)
+  if (stream._writev && entry && entry.next) {
+    // Fast case, write everything using _writev()
+    var l = state.bufferedRequestCount;
+    var buffer = new Array(l);
+    var holder = state.corkedRequestsFree;
+    holder.entry = entry;
 
-  return Buffer.concat([
-    r.toArrayLike(Buffer, 'be', 32),
-    s.toArrayLike(Buffer, 'be', 32)
-  ])
-}
+    var count = 0;
+    var allBuffers = true;
+    while (entry) {
+      buffer[count] = entry;
+      if (!entry.isBuf) allBuffers = false;
+      entry = entry.next;
+      count += 1;
+    }
+    buffer.allBuffers = allBuffers;
 
-exports.sign = function (message, privateKey, noncefn, data) {
-  if (typeof noncefn === 'function') {
-    var getNonce = noncefn
-    noncefn = function (counter) {
-      var nonce = getNonce(message, privateKey, null, data, counter)
-      if (!Buffer.isBuffer(nonce) || nonce.length !== 32) throw new Error(messages.ECDSA_SIGN_FAIL)
+    doWrite(stream, state, true, state.length, buffer, '', holder.finish);
 
-      return new BN(nonce)
+    // doWrite is almost always async, defer these to save a bit of time
+    // as the hot path ends with doWrite
+    state.pendingcb++;
+    state.lastBufferedRequest = null;
+    if (holder.next) {
+      state.corkedRequestsFree = holder.next;
+      holder.next = null;
+    } else {
+      state.corkedRequestsFree = new CorkedRequest(state);
     }
-  }
+  } else {
+    // Slow case, write chunks one-by-one
+    while (entry) {
+      var chunk = entry.chunk;
+      var encoding = entry.encoding;
+      var cb = entry.callback;
+      var len = state.objectMode ? 1 : chunk.length;
 
-  var d = new BN(privateKey)
-  if (d.cmp(ecparams.n) >= 0 || d.isZero()) throw new Error(messages.ECDSA_SIGN_FAIL)
+      doWrite(stream, state, false, len, chunk, encoding, cb);
+      entry = entry.next;
+      // if we didn't call the onwrite immediately, then
+      // it means that we need to wait until it does.
+      // also, that means that the chunk and cb are currently
+      // being processed, so move the buffer counter past them.
+      if (state.writing) {
+        break;
+      }
+    }
 
-  var result = ec.sign(message, privateKey, { canonical: true, k: noncefn, pers: data })
-  return {
-    signature: Buffer.concat([
-      result.r.toArrayLike(Buffer, 'be', 32),
-      result.s.toArrayLike(Buffer, 'be', 32)
-    ]),
-    recovery: result.recoveryParam
+    if (entry === null) state.lastBufferedRequest = null;
   }
+
+  state.bufferedRequestCount = 0;
+  state.bufferedRequest = entry;
+  state.bufferProcessing = false;
 }
 
-exports.verify = function (message, signature, publicKey) {
-  var sigObj = {r: signature.slice(0, 32), s: signature.slice(32, 64)}
+Writable.prototype._write = function (chunk, encoding, cb) {
+  cb(new Error('_write() is not implemented'));
+};
 
-  var sigr = new BN(sigObj.r)
-  var sigs = new BN(sigObj.s)
-  if (sigr.cmp(ecparams.n) >= 0 || sigs.cmp(ecparams.n) >= 0) throw new Error(messages.ECDSA_SIGNATURE_PARSE_FAIL)
-  if (sigs.cmp(ec.nh) === 1 || sigr.isZero() || sigs.isZero()) return false
+Writable.prototype._writev = null;
 
-  var pair = loadPublicKey(publicKey)
-  if (pair === null) throw new Error(messages.EC_PUBLIC_KEY_PARSE_FAIL)
+Writable.prototype.end = function (chunk, encoding, cb) {
+  var state = this._writableState;
 
-  return ec.verify(message, sigObj, {x: pair.pub.x, y: pair.pub.y})
-}
+  if (typeof chunk === 'function') {
+    cb = chunk;
+    chunk = null;
+    encoding = null;
+  } else if (typeof encoding === 'function') {
+    cb = encoding;
+    encoding = null;
+  }
 
-exports.recover = function (message, signature, recovery, compressed) {
-  var sigObj = {r: signature.slice(0, 32), s: signature.slice(32, 64)}
+  if (chunk !== null && chunk !== undefined) this.write(chunk, encoding);
 
-  var sigr = new BN(sigObj.r)
-  var sigs = new BN(sigObj.s)
-  if (sigr.cmp(ecparams.n) >= 0 || sigs.cmp(ecparams.n) >= 0) throw new Error(messages.ECDSA_SIGNATURE_PARSE_FAIL)
+  // .end() fully uncorks
+  if (state.corked) {
+    state.corked = 1;
+    this.uncork();
+  }
 
-  try {
-    if (sigr.isZero() || sigs.isZero()) throw new Error()
+  // ignore unnecessary end() calls.
+  if (!state.ending && !state.finished) endWritable(this, state, cb);
+};
 
-    var point = ec.recoverPubKey(message, sigObj, recovery)
-    return new Buffer(point.encode(true, compressed))
-  } catch (err) {
-    throw new Error(messages.ECDSA_RECOVER_FAIL)
+function needFinish(state) {
+  return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing;
+}
+function callFinal(stream, state) {
+  stream._final(function (err) {
+    state.pendingcb--;
+    if (err) {
+      stream.emit('error', err);
+    }
+    state.prefinished = true;
+    stream.emit('prefinish');
+    finishMaybe(stream, state);
+  });
+}
+function prefinish(stream, state) {
+  if (!state.prefinished && !state.finalCalled) {
+    if (typeof stream._final === 'function') {
+      state.pendingcb++;
+      state.finalCalled = true;
+      processNextTick(callFinal, stream, state);
+    } else {
+      state.prefinished = true;
+      stream.emit('prefinish');
+    }
   }
 }
 
-exports.ecdh = function (publicKey, privateKey) {
-  var shared = exports.ecdhUnsafe(publicKey, privateKey, true)
-  return createHash('sha256').update(shared).digest()
+function finishMaybe(stream, state) {
+  var need = needFinish(state);
+  if (need) {
+    prefinish(stream, state);
+    if (state.pendingcb === 0) {
+      state.finished = true;
+      stream.emit('finish');
+    }
+  }
+  return need;
 }
 
-exports.ecdhUnsafe = function (publicKey, privateKey, compressed) {
-  var pair = loadPublicKey(publicKey)
-  if (pair === null) throw new Error(messages.EC_PUBLIC_KEY_PARSE_FAIL)
-
-  var scalar = new BN(privateKey)
-  if (scalar.cmp(ecparams.n) >= 0 || scalar.isZero()) throw new Error(messages.ECDH_FAIL)
-
-  return new Buffer(pair.pub.mul(scalar).encode(true, compressed))
+function endWritable(stream, state, cb) {
+  state.ending = true;
+  finishMaybe(stream, state);
+  if (cb) {
+    if (state.finished) processNextTick(cb);else stream.once('finish', cb);
+  }
+  state.ended = true;
+  stream.writable = false;
 }
 
-}).call(this,require("buffer").Buffer)
-},{"../messages.json":78,"bn.js":33,"buffer":5,"create-hash":36,"elliptic":39}],77:[function(require,module,exports){
-'use strict'
-var assert = require('./assert')
-var der = require('./der')
-var messages = require('./messages.json')
+function onCorkedFinish(corkReq, state, err) {
+  var entry = corkReq.entry;
+  corkReq.entry = null;
+  while (entry) {
+    var cb = entry.callback;
+    state.pendingcb--;
+    cb(err);
+    entry = entry.next;
+  }
+  if (state.corkedRequestsFree) {
+    state.corkedRequestsFree.next = corkReq;
+  } else {
+    state.corkedRequestsFree = corkReq;
+  }
+}
 
-function initCompressedValue (value, defaultValue) {
-  if (value === undefined) return defaultValue
+Object.defineProperty(Writable.prototype, 'destroyed', {
+  get: function () {
+    if (this._writableState === undefined) {
+      return false;
+    }
+    return this._writableState.destroyed;
+  },
+  set: function (value) {
+    // we ignore the value if the stream
+    // has not been initialized yet
+    if (!this._writableState) {
+      return;
+    }
 
-  assert.isBoolean(value, messages.COMPRESSED_TYPE_INVALID)
-  return value
-}
+    // backward compatibility, the user is explicitly
+    // managing destroyed
+    this._writableState.destroyed = value;
+  }
+});
 
-module.exports = function (secp256k1) {
-  return {
-    privateKeyVerify: function (privateKey) {
-      assert.isBuffer(privateKey, messages.EC_PRIVATE_KEY_TYPE_INVALID)
-      return privateKey.length === 32 && secp256k1.privateKeyVerify(privateKey)
-    },
+Writable.prototype.destroy = destroyImpl.destroy;
+Writable.prototype._undestroy = destroyImpl.undestroy;
+Writable.prototype._destroy = function (err, cb) {
+  this.end();
+  cb(err);
+};
+}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"./_stream_duplex":27,"./internal/streams/destroy":33,"./internal/streams/stream":34,"_process":25,"core-util-is":14,"inherits":21,"process-nextick-args":24,"safe-buffer":40,"util-deprecate":51}],32:[function(require,module,exports){
+'use strict';
 
-    privateKeyExport: function (privateKey, compressed) {
-      assert.isBuffer(privateKey, messages.EC_PRIVATE_KEY_TYPE_INVALID)
-      assert.isBufferLength(privateKey, 32, messages.EC_PRIVATE_KEY_LENGTH_INVALID)
+/*<replacement>*/
 
-      compressed = initCompressedValue(compressed, true)
-      var publicKey = secp256k1.privateKeyExport(privateKey, compressed)
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
 
-      return der.privateKeyExport(privateKey, publicKey, compressed)
-    },
+var Buffer = require('safe-buffer').Buffer;
+/*</replacement>*/
 
-    privateKeyImport: function (privateKey) {
-      assert.isBuffer(privateKey, messages.EC_PRIVATE_KEY_TYPE_INVALID)
+function copyBuffer(src, target, offset) {
+  src.copy(target, offset);
+}
 
-      privateKey = der.privateKeyImport(privateKey)
-      if (privateKey && privateKey.length === 32 && secp256k1.privateKeyVerify(privateKey)) return privateKey
+module.exports = function () {
+  function BufferList() {
+    _classCallCheck(this, BufferList);
 
-      throw new Error(messages.EC_PRIVATE_KEY_IMPORT_DER_FAIL)
-    },
+    this.head = null;
+    this.tail = null;
+    this.length = 0;
+  }
 
-    privateKeyTweakAdd: function (privateKey, tweak) {
-      assert.isBuffer(privateKey, messages.EC_PRIVATE_KEY_TYPE_INVALID)
-      assert.isBufferLength(privateKey, 32, messages.EC_PRIVATE_KEY_LENGTH_INVALID)
+  BufferList.prototype.push = function push(v) {
+    var entry = { data: v, next: null };
+    if (this.length > 0) this.tail.next = entry;else this.head = entry;
+    this.tail = entry;
+    ++this.length;
+  };
 
-      assert.isBuffer(tweak, messages.TWEAK_TYPE_INVALID)
-      assert.isBufferLength(tweak, 32, messages.TWEAK_LENGTH_INVALID)
+  BufferList.prototype.unshift = function unshift(v) {
+    var entry = { data: v, next: this.head };
+    if (this.length === 0) this.tail = entry;
+    this.head = entry;
+    ++this.length;
+  };
 
-      return secp256k1.privateKeyTweakAdd(privateKey, tweak)
-    },
+  BufferList.prototype.shift = function shift() {
+    if (this.length === 0) return;
+    var ret = this.head.data;
+    if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next;
+    --this.length;
+    return ret;
+  };
 
-    privateKeyTweakMul: function (privateKey, tweak) {
-      assert.isBuffer(privateKey, messages.EC_PRIVATE_KEY_TYPE_INVALID)
-      assert.isBufferLength(privateKey, 32, messages.EC_PRIVATE_KEY_LENGTH_INVALID)
+  BufferList.prototype.clear = function clear() {
+    this.head = this.tail = null;
+    this.length = 0;
+  };
 
-      assert.isBuffer(tweak, messages.TWEAK_TYPE_INVALID)
-      assert.isBufferLength(tweak, 32, messages.TWEAK_LENGTH_INVALID)
+  BufferList.prototype.join = function join(s) {
+    if (this.length === 0) return '';
+    var p = this.head;
+    var ret = '' + p.data;
+    while (p = p.next) {
+      ret += s + p.data;
+    }return ret;
+  };
 
-      return secp256k1.privateKeyTweakMul(privateKey, tweak)
-    },
+  BufferList.prototype.concat = function concat(n) {
+    if (this.length === 0) return Buffer.alloc(0);
+    if (this.length === 1) return this.head.data;
+    var ret = Buffer.allocUnsafe(n >>> 0);
+    var p = this.head;
+    var i = 0;
+    while (p) {
+      copyBuffer(p.data, ret, i);
+      i += p.data.length;
+      p = p.next;
+    }
+    return ret;
+  };
 
-    publicKeyCreate: function (privateKey, compressed) {
-      assert.isBuffer(privateKey, messages.EC_PRIVATE_KEY_TYPE_INVALID)
-      assert.isBufferLength(privateKey, 32, messages.EC_PRIVATE_KEY_LENGTH_INVALID)
+  return BufferList;
+}();
+},{"safe-buffer":40}],33:[function(require,module,exports){
+'use strict';
 
-      compressed = initCompressedValue(compressed, true)
+/*<replacement>*/
 
-      return secp256k1.publicKeyCreate(privateKey, compressed)
-    },
+var processNextTick = require('process-nextick-args');
+/*</replacement>*/
 
-    publicKeyConvert: function (publicKey, compressed) {
-      assert.isBuffer(publicKey, messages.EC_PUBLIC_KEY_TYPE_INVALID)
-      assert.isBufferLength2(publicKey, 33, 65, messages.EC_PUBLIC_KEY_LENGTH_INVALID)
+// undocumented cb() API, needed for core, not for public API
+function destroy(err, cb) {
+  var _this = this;
 
-      compressed = initCompressedValue(compressed, true)
+  var readableDestroyed = this._readableState && this._readableState.destroyed;
+  var writableDestroyed = this._writableState && this._writableState.destroyed;
 
-      return secp256k1.publicKeyConvert(publicKey, compressed)
-    },
+  if (readableDestroyed || writableDestroyed) {
+    if (cb) {
+      cb(err);
+    } else if (err && (!this._writableState || !this._writableState.errorEmitted)) {
+      processNextTick(emitErrorNT, this, err);
+    }
+    return;
+  }
 
-    publicKeyVerify: function (publicKey) {
-      assert.isBuffer(publicKey, messages.EC_PUBLIC_KEY_TYPE_INVALID)
-      return secp256k1.publicKeyVerify(publicKey)
-    },
+  // we set destroyed to true before firing error callbacks in order
+  // to make it re-entrance safe in case destroy() is called within callbacks
 
-    publicKeyTweakAdd: function (publicKey, tweak, compressed) {
-      assert.isBuffer(publicKey, messages.EC_PUBLIC_KEY_TYPE_INVALID)
-      assert.isBufferLength2(publicKey, 33, 65, messages.EC_PUBLIC_KEY_LENGTH_INVALID)
+  if (this._readableState) {
+    this._readableState.destroyed = true;
+  }
 
-      assert.isBuffer(tweak, messages.TWEAK_TYPE_INVALID)
-      assert.isBufferLength(tweak, 32, messages.TWEAK_LENGTH_INVALID)
+  // if this is a duplex stream mark the writable part as destroyed as well
+  if (this._writableState) {
+    this._writableState.destroyed = true;
+  }
 
-      compressed = initCompressedValue(compressed, true)
+  this._destroy(err || null, function (err) {
+    if (!cb && err) {
+      processNextTick(emitErrorNT, _this, err);
+      if (_this._writableState) {
+        _this._writableState.errorEmitted = true;
+      }
+    } else if (cb) {
+      cb(err);
+    }
+  });
+}
 
-      return secp256k1.publicKeyTweakAdd(publicKey, tweak, compressed)
-    },
+function undestroy() {
+  if (this._readableState) {
+    this._readableState.destroyed = false;
+    this._readableState.reading = false;
+    this._readableState.ended = false;
+    this._readableState.endEmitted = false;
+  }
 
-    publicKeyTweakMul: function (publicKey, tweak, compressed) {
-      assert.isBuffer(publicKey, messages.EC_PUBLIC_KEY_TYPE_INVALID)
-      assert.isBufferLength2(publicKey, 33, 65, messages.EC_PUBLIC_KEY_LENGTH_INVALID)
+  if (this._writableState) {
+    this._writableState.destroyed = false;
+    this._writableState.ended = false;
+    this._writableState.ending = false;
+    this._writableState.finished = false;
+    this._writableState.errorEmitted = false;
+  }
+}
 
-      assert.isBuffer(tweak, messages.TWEAK_TYPE_INVALID)
-      assert.isBufferLength(tweak, 32, messages.TWEAK_LENGTH_INVALID)
+function emitErrorNT(self, err) {
+  self.emit('error', err);
+}
 
-      compressed = initCompressedValue(compressed, true)
+module.exports = {
+  destroy: destroy,
+  undestroy: undestroy
+};
+},{"process-nextick-args":24}],34:[function(require,module,exports){
+module.exports = require('events').EventEmitter;
 
-      return secp256k1.publicKeyTweakMul(publicKey, tweak, compressed)
-    },
+},{"events":18}],35:[function(require,module,exports){
+module.exports = require('./readable').PassThrough
 
-    publicKeyCombine: function (publicKeys, compressed) {
-      assert.isArray(publicKeys, messages.EC_PUBLIC_KEYS_TYPE_INVALID)
-      assert.isLengthGTZero(publicKeys, messages.EC_PUBLIC_KEYS_LENGTH_INVALID)
-      for (var i = 0; i < publicKeys.length; ++i) {
-        assert.isBuffer(publicKeys[i], messages.EC_PUBLIC_KEY_TYPE_INVALID)
-        assert.isBufferLength2(publicKeys[i], 33, 65, messages.EC_PUBLIC_KEY_LENGTH_INVALID)
-      }
+},{"./readable":36}],36:[function(require,module,exports){
+exports = module.exports = require('./lib/_stream_readable.js');
+exports.Stream = exports;
+exports.Readable = exports;
+exports.Writable = require('./lib/_stream_writable.js');
+exports.Duplex = require('./lib/_stream_duplex.js');
+exports.Transform = require('./lib/_stream_transform.js');
+exports.PassThrough = require('./lib/_stream_passthrough.js');
 
-      compressed = initCompressedValue(compressed, true)
+},{"./lib/_stream_duplex.js":27,"./lib/_stream_passthrough.js":28,"./lib/_stream_readable.js":29,"./lib/_stream_transform.js":30,"./lib/_stream_writable.js":31}],37:[function(require,module,exports){
+module.exports = require('./readable').Transform
 
-      return secp256k1.publicKeyCombine(publicKeys, compressed)
-    },
+},{"./readable":36}],38:[function(require,module,exports){
+module.exports = require('./lib/_stream_writable.js');
 
-    signatureNormalize: function (signature) {
-      assert.isBuffer(signature, messages.ECDSA_SIGNATURE_TYPE_INVALID)
-      assert.isBufferLength(signature, 64, messages.ECDSA_SIGNATURE_LENGTH_INVALID)
+},{"./lib/_stream_writable.js":31}],39:[function(require,module,exports){
+(function (Buffer){
+'use strict'
+var inherits = require('inherits')
+var HashBase = require('hash-base')
 
-      return secp256k1.signatureNormalize(signature)
-    },
+function RIPEMD160 () {
+  HashBase.call(this, 64)
 
-    signatureExport: function (signature) {
-      assert.isBuffer(signature, messages.ECDSA_SIGNATURE_TYPE_INVALID)
-      assert.isBufferLength(signature, 64, messages.ECDSA_SIGNATURE_LENGTH_INVALID)
+  // state
+  this._a = 0x67452301
+  this._b = 0xefcdab89
+  this._c = 0x98badcfe
+  this._d = 0x10325476
+  this._e = 0xc3d2e1f0
+}
 
-      var sigObj = secp256k1.signatureExport(signature)
-      return der.signatureExport(sigObj)
-    },
+inherits(RIPEMD160, HashBase)
 
-    signatureImport: function (sig) {
-      assert.isBuffer(sig, messages.ECDSA_SIGNATURE_TYPE_INVALID)
-      assert.isLengthGTZero(sig, messages.ECDSA_SIGNATURE_LENGTH_INVALID)
+RIPEMD160.prototype._update = function () {
+  var m = new Array(16)
+  for (var i = 0; i < 16; ++i) m[i] = this._block.readInt32LE(i * 4)
 
-      var sigObj = der.signatureImport(sig)
-      if (sigObj) return secp256k1.signatureImport(sigObj)
+  var al = this._a
+  var bl = this._b
+  var cl = this._c
+  var dl = this._d
+  var el = this._e
 
-      throw new Error(messages.ECDSA_SIGNATURE_PARSE_DER_FAIL)
-    },
+  // Mj = 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
+  // K = 0x00000000
+  // Sj = 11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8
+  al = fn1(al, bl, cl, dl, el, m[0], 0x00000000, 11); cl = rotl(cl, 10)
+  el = fn1(el, al, bl, cl, dl, m[1], 0x00000000, 14); bl = rotl(bl, 10)
+  dl = fn1(dl, el, al, bl, cl, m[2], 0x00000000, 15); al = rotl(al, 10)
+  cl = fn1(cl, dl, el, al, bl, m[3], 0x00000000, 12); el = rotl(el, 10)
+  bl = fn1(bl, cl, dl, el, al, m[4], 0x00000000, 5); dl = rotl(dl, 10)
+  al = fn1(al, bl, cl, dl, el, m[5], 0x00000000, 8); cl = rotl(cl, 10)
+  el = fn1(el, al, bl, cl, dl, m[6], 0x00000000, 7); bl = rotl(bl, 10)
+  dl = fn1(dl, el, al, bl, cl, m[7], 0x00000000, 9); al = rotl(al, 10)
+  cl = fn1(cl, dl, el, al, bl, m[8], 0x00000000, 11); el = rotl(el, 10)
+  bl = fn1(bl, cl, dl, el, al, m[9], 0x00000000, 13); dl = rotl(dl, 10)
+  al = fn1(al, bl, cl, dl, el, m[10], 0x00000000, 14); cl = rotl(cl, 10)
+  el = fn1(el, al, bl, cl, dl, m[11], 0x00000000, 15); bl = rotl(bl, 10)
+  dl = fn1(dl, el, al, bl, cl, m[12], 0x00000000, 6); al = rotl(al, 10)
+  cl = fn1(cl, dl, el, al, bl, m[13], 0x00000000, 7); el = rotl(el, 10)
+  bl = fn1(bl, cl, dl, el, al, m[14], 0x00000000, 9); dl = rotl(dl, 10)
+  al = fn1(al, bl, cl, dl, el, m[15], 0x00000000, 8); cl = rotl(cl, 10)
 
-    signatureImportLax: function (sig) {
-      assert.isBuffer(sig, messages.ECDSA_SIGNATURE_TYPE_INVALID)
-      assert.isLengthGTZero(sig, messages.ECDSA_SIGNATURE_LENGTH_INVALID)
+  // Mj = 7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8
+  // K = 0x5a827999
+  // Sj = 7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12
+  el = fn2(el, al, bl, cl, dl, m[7], 0x5a827999, 7); bl = rotl(bl, 10)
+  dl = fn2(dl, el, al, bl, cl, m[4], 0x5a827999, 6); al = rotl(al, 10)
+  cl = fn2(cl, dl, el, al, bl, m[13], 0x5a827999, 8); el = rotl(el, 10)
+  bl = fn2(bl, cl, dl, el, al, m[1], 0x5a827999, 13); dl = rotl(dl, 10)
+  al = fn2(al, bl, cl, dl, el, m[10], 0x5a827999, 11); cl = rotl(cl, 10)
+  el = fn2(el, al, bl, cl, dl, m[6], 0x5a827999, 9); bl = rotl(bl, 10)
+  dl = fn2(dl, el, al, bl, cl, m[15], 0x5a827999, 7); al = rotl(al, 10)
+  cl = fn2(cl, dl, el, al, bl, m[3], 0x5a827999, 15); el = rotl(el, 10)
+  bl = fn2(bl, cl, dl, el, al, m[12], 0x5a827999, 7); dl = rotl(dl, 10)
+  al = fn2(al, bl, cl, dl, el, m[0], 0x5a827999, 12); cl = rotl(cl, 10)
+  el = fn2(el, al, bl, cl, dl, m[9], 0x5a827999, 15); bl = rotl(bl, 10)
+  dl = fn2(dl, el, al, bl, cl, m[5], 0x5a827999, 9); al = rotl(al, 10)
+  cl = fn2(cl, dl, el, al, bl, m[2], 0x5a827999, 11); el = rotl(el, 10)
+  bl = fn2(bl, cl, dl, el, al, m[14], 0x5a827999, 7); dl = rotl(dl, 10)
+  al = fn2(al, bl, cl, dl, el, m[11], 0x5a827999, 13); cl = rotl(cl, 10)
+  el = fn2(el, al, bl, cl, dl, m[8], 0x5a827999, 12); bl = rotl(bl, 10)
 
-      var sigObj = der.signatureImportLax(sig)
-      if (sigObj) return secp256k1.signatureImport(sigObj)
+  // Mj = 3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12
+  // K = 0x6ed9eba1
+  // Sj = 11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5
+  dl = fn3(dl, el, al, bl, cl, m[3], 0x6ed9eba1, 11); al = rotl(al, 10)
+  cl = fn3(cl, dl, el, al, bl, m[10], 0x6ed9eba1, 13); el = rotl(el, 10)
+  bl = fn3(bl, cl, dl, el, al, m[14], 0x6ed9eba1, 6); dl = rotl(dl, 10)
+  al = fn3(al, bl, cl, dl, el, m[4], 0x6ed9eba1, 7); cl = rotl(cl, 10)
+  el = fn3(el, al, bl, cl, dl, m[9], 0x6ed9eba1, 14); bl = rotl(bl, 10)
+  dl = fn3(dl, el, al, bl, cl, m[15], 0x6ed9eba1, 9); al = rotl(al, 10)
+  cl = fn3(cl, dl, el, al, bl, m[8], 0x6ed9eba1, 13); el = rotl(el, 10)
+  bl = fn3(bl, cl, dl, el, al, m[1], 0x6ed9eba1, 15); dl = rotl(dl, 10)
+  al = fn3(al, bl, cl, dl, el, m[2], 0x6ed9eba1, 14); cl = rotl(cl, 10)
+  el = fn3(el, al, bl, cl, dl, m[7], 0x6ed9eba1, 8); bl = rotl(bl, 10)
+  dl = fn3(dl, el, al, bl, cl, m[0], 0x6ed9eba1, 13); al = rotl(al, 10)
+  cl = fn3(cl, dl, el, al, bl, m[6], 0x6ed9eba1, 6); el = rotl(el, 10)
+  bl = fn3(bl, cl, dl, el, al, m[13], 0x6ed9eba1, 5); dl = rotl(dl, 10)
+  al = fn3(al, bl, cl, dl, el, m[11], 0x6ed9eba1, 12); cl = rotl(cl, 10)
+  el = fn3(el, al, bl, cl, dl, m[5], 0x6ed9eba1, 7); bl = rotl(bl, 10)
+  dl = fn3(dl, el, al, bl, cl, m[12], 0x6ed9eba1, 5); al = rotl(al, 10)
 
-      throw new Error(messages.ECDSA_SIGNATURE_PARSE_DER_FAIL)
-    },
+  // Mj = 1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2
+  // K = 0x8f1bbcdc
+  // Sj = 11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12
+  cl = fn4(cl, dl, el, al, bl, m[1], 0x8f1bbcdc, 11); el = rotl(el, 10)
+  bl = fn4(bl, cl, dl, el, al, m[9], 0x8f1bbcdc, 12); dl = rotl(dl, 10)
+  al = fn4(al, bl, cl, dl, el, m[11], 0x8f1bbcdc, 14); cl = rotl(cl, 10)
+  el = fn4(el, al, bl, cl, dl, m[10], 0x8f1bbcdc, 15); bl = rotl(bl, 10)
+  dl = fn4(dl, el, al, bl, cl, m[0], 0x8f1bbcdc, 14); al = rotl(al, 10)
+  cl = fn4(cl, dl, el, al, bl, m[8], 0x8f1bbcdc, 15); el = rotl(el, 10)
+  bl = fn4(bl, cl, dl, el, al, m[12], 0x8f1bbcdc, 9); dl = rotl(dl, 10)
+  al = fn4(al, bl, cl, dl, el, m[4], 0x8f1bbcdc, 8); cl = rotl(cl, 10)
+  el = fn4(el, al, bl, cl, dl, m[13], 0x8f1bbcdc, 9); bl = rotl(bl, 10)
+  dl = fn4(dl, el, al, bl, cl, m[3], 0x8f1bbcdc, 14); al = rotl(al, 10)
+  cl = fn4(cl, dl, el, al, bl, m[7], 0x8f1bbcdc, 5); el = rotl(el, 10)
+  bl = fn4(bl, cl, dl, el, al, m[15], 0x8f1bbcdc, 6); dl = rotl(dl, 10)
+  al = fn4(al, bl, cl, dl, el, m[14], 0x8f1bbcdc, 8); cl = rotl(cl, 10)
+  el = fn4(el, al, bl, cl, dl, m[5], 0x8f1bbcdc, 6); bl = rotl(bl, 10)
+  dl = fn4(dl, el, al, bl, cl, m[6], 0x8f1bbcdc, 5); al = rotl(al, 10)
+  cl = fn4(cl, dl, el, al, bl, m[2], 0x8f1bbcdc, 12); el = rotl(el, 10)
 
-    sign: function (message, privateKey, options) {
-      assert.isBuffer(message, messages.MSG32_TYPE_INVALID)
-      assert.isBufferLength(message, 32, messages.MSG32_LENGTH_INVALID)
+  // Mj = 4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13
+  // K = 0xa953fd4e
+  // Sj = 9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6
+  bl = fn5(bl, cl, dl, el, al, m[4], 0xa953fd4e, 9); dl = rotl(dl, 10)
+  al = fn5(al, bl, cl, dl, el, m[0], 0xa953fd4e, 15); cl = rotl(cl, 10)
+  el = fn5(el, al, bl, cl, dl, m[5], 0xa953fd4e, 5); bl = rotl(bl, 10)
+  dl = fn5(dl, el, al, bl, cl, m[9], 0xa953fd4e, 11); al = rotl(al, 10)
+  cl = fn5(cl, dl, el, al, bl, m[7], 0xa953fd4e, 6); el = rotl(el, 10)
+  bl = fn5(bl, cl, dl, el, al, m[12], 0xa953fd4e, 8); dl = rotl(dl, 10)
+  al = fn5(al, bl, cl, dl, el, m[2], 0xa953fd4e, 13); cl = rotl(cl, 10)
+  el = fn5(el, al, bl, cl, dl, m[10], 0xa953fd4e, 12); bl = rotl(bl, 10)
+  dl = fn5(dl, el, al, bl, cl, m[14], 0xa953fd4e, 5); al = rotl(al, 10)
+  cl = fn5(cl, dl, el, al, bl, m[1], 0xa953fd4e, 12); el = rotl(el, 10)
+  bl = fn5(bl, cl, dl, el, al, m[3], 0xa953fd4e, 13); dl = rotl(dl, 10)
+  al = fn5(al, bl, cl, dl, el, m[8], 0xa953fd4e, 14); cl = rotl(cl, 10)
+  el = fn5(el, al, bl, cl, dl, m[11], 0xa953fd4e, 11); bl = rotl(bl, 10)
+  dl = fn5(dl, el, al, bl, cl, m[6], 0xa953fd4e, 8); al = rotl(al, 10)
+  cl = fn5(cl, dl, el, al, bl, m[15], 0xa953fd4e, 5); el = rotl(el, 10)
+  bl = fn5(bl, cl, dl, el, al, m[13], 0xa953fd4e, 6); dl = rotl(dl, 10)
 
-      assert.isBuffer(privateKey, messages.EC_PRIVATE_KEY_TYPE_INVALID)
-      assert.isBufferLength(privateKey, 32, messages.EC_PRIVATE_KEY_LENGTH_INVALID)
+  var ar = this._a
+  var br = this._b
+  var cr = this._c
+  var dr = this._d
+  var er = this._e
 
-      var data = null
-      var noncefn = null
-      if (options !== undefined) {
-        assert.isObject(options, messages.OPTIONS_TYPE_INVALID)
+  // M'j = 5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12
+  // K' = 0x50a28be6
+  // S'j = 8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6
+  ar = fn5(ar, br, cr, dr, er, m[5], 0x50a28be6, 8); cr = rotl(cr, 10)
+  er = fn5(er, ar, br, cr, dr, m[14], 0x50a28be6, 9); br = rotl(br, 10)
+  dr = fn5(dr, er, ar, br, cr, m[7], 0x50a28be6, 9); ar = rotl(ar, 10)
+  cr = fn5(cr, dr, er, ar, br, m[0], 0x50a28be6, 11); er = rotl(er, 10)
+  br = fn5(br, cr, dr, er, ar, m[9], 0x50a28be6, 13); dr = rotl(dr, 10)
+  ar = fn5(ar, br, cr, dr, er, m[2], 0x50a28be6, 15); cr = rotl(cr, 10)
+  er = fn5(er, ar, br, cr, dr, m[11], 0x50a28be6, 15); br = rotl(br, 10)
+  dr = fn5(dr, er, ar, br, cr, m[4], 0x50a28be6, 5); ar = rotl(ar, 10)
+  cr = fn5(cr, dr, er, ar, br, m[13], 0x50a28be6, 7); er = rotl(er, 10)
+  br = fn5(br, cr, dr, er, ar, m[6], 0x50a28be6, 7); dr = rotl(dr, 10)
+  ar = fn5(ar, br, cr, dr, er, m[15], 0x50a28be6, 8); cr = rotl(cr, 10)
+  er = fn5(er, ar, br, cr, dr, m[8], 0x50a28be6, 11); br = rotl(br, 10)
+  dr = fn5(dr, er, ar, br, cr, m[1], 0x50a28be6, 14); ar = rotl(ar, 10)
+  cr = fn5(cr, dr, er, ar, br, m[10], 0x50a28be6, 14); er = rotl(er, 10)
+  br = fn5(br, cr, dr, er, ar, m[3], 0x50a28be6, 12); dr = rotl(dr, 10)
+  ar = fn5(ar, br, cr, dr, er, m[12], 0x50a28be6, 6); cr = rotl(cr, 10)
 
-        if (options.data !== undefined) {
-          assert.isBuffer(options.data, messages.OPTIONS_DATA_TYPE_INVALID)
-          assert.isBufferLength(options.data, 32, messages.OPTIONS_DATA_LENGTH_INVALID)
-          data = options.data
-        }
+  // M'j = 6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2
+  // K' = 0x5c4dd124
+  // S'j = 9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11
+  er = fn4(er, ar, br, cr, dr, m[6], 0x5c4dd124, 9); br = rotl(br, 10)
+  dr = fn4(dr, er, ar, br, cr, m[11], 0x5c4dd124, 13); ar = rotl(ar, 10)
+  cr = fn4(cr, dr, er, ar, br, m[3], 0x5c4dd124, 15); er = rotl(er, 10)
+  br = fn4(br, cr, dr, er, ar, m[7], 0x5c4dd124, 7); dr = rotl(dr, 10)
+  ar = fn4(ar, br, cr, dr, er, m[0], 0x5c4dd124, 12); cr = rotl(cr, 10)
+  er = fn4(er, ar, br, cr, dr, m[13], 0x5c4dd124, 8); br = rotl(br, 10)
+  dr = fn4(dr, er, ar, br, cr, m[5], 0x5c4dd124, 9); ar = rotl(ar, 10)
+  cr = fn4(cr, dr, er, ar, br, m[10], 0x5c4dd124, 11); er = rotl(er, 10)
+  br = fn4(br, cr, dr, er, ar, m[14], 0x5c4dd124, 7); dr = rotl(dr, 10)
+  ar = fn4(ar, br, cr, dr, er, m[15], 0x5c4dd124, 7); cr = rotl(cr, 10)
+  er = fn4(er, ar, br, cr, dr, m[8], 0x5c4dd124, 12); br = rotl(br, 10)
+  dr = fn4(dr, er, ar, br, cr, m[12], 0x5c4dd124, 7); ar = rotl(ar, 10)
+  cr = fn4(cr, dr, er, ar, br, m[4], 0x5c4dd124, 6); er = rotl(er, 10)
+  br = fn4(br, cr, dr, er, ar, m[9], 0x5c4dd124, 15); dr = rotl(dr, 10)
+  ar = fn4(ar, br, cr, dr, er, m[1], 0x5c4dd124, 13); cr = rotl(cr, 10)
+  er = fn4(er, ar, br, cr, dr, m[2], 0x5c4dd124, 11); br = rotl(br, 10)
 
-        if (options.noncefn !== undefined) {
-          assert.isFunction(options.noncefn, messages.OPTIONS_NONCEFN_TYPE_INVALID)
-          noncefn = options.noncefn
-        }
-      }
+  // M'j = 15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13
+  // K' = 0x6d703ef3
+  // S'j = 9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5
+  dr = fn3(dr, er, ar, br, cr, m[15], 0x6d703ef3, 9); ar = rotl(ar, 10)
+  cr = fn3(cr, dr, er, ar, br, m[5], 0x6d703ef3, 7); er = rotl(er, 10)
+  br = fn3(br, cr, dr, er, ar, m[1], 0x6d703ef3, 15); dr = rotl(dr, 10)
+  ar = fn3(ar, br, cr, dr, er, m[3], 0x6d703ef3, 11); cr = rotl(cr, 10)
+  er = fn3(er, ar, br, cr, dr, m[7], 0x6d703ef3, 8); br = rotl(br, 10)
+  dr = fn3(dr, er, ar, br, cr, m[14], 0x6d703ef3, 6); ar = rotl(ar, 10)
+  cr = fn3(cr, dr, er, ar, br, m[6], 0x6d703ef3, 6); er = rotl(er, 10)
+  br = fn3(br, cr, dr, er, ar, m[9], 0x6d703ef3, 14); dr = rotl(dr, 10)
+  ar = fn3(ar, br, cr, dr, er, m[11], 0x6d703ef3, 12); cr = rotl(cr, 10)
+  er = fn3(er, ar, br, cr, dr, m[8], 0x6d703ef3, 13); br = rotl(br, 10)
+  dr = fn3(dr, er, ar, br, cr, m[12], 0x6d703ef3, 5); ar = rotl(ar, 10)
+  cr = fn3(cr, dr, er, ar, br, m[2], 0x6d703ef3, 14); er = rotl(er, 10)
+  br = fn3(br, cr, dr, er, ar, m[10], 0x6d703ef3, 13); dr = rotl(dr, 10)
+  ar = fn3(ar, br, cr, dr, er, m[0], 0x6d703ef3, 13); cr = rotl(cr, 10)
+  er = fn3(er, ar, br, cr, dr, m[4], 0x6d703ef3, 7); br = rotl(br, 10)
+  dr = fn3(dr, er, ar, br, cr, m[13], 0x6d703ef3, 5); ar = rotl(ar, 10)
 
-      return secp256k1.sign(message, privateKey, noncefn, data)
-    },
+  // M'j = 8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14
+  // K' = 0x7a6d76e9
+  // S'j = 15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8
+  cr = fn2(cr, dr, er, ar, br, m[8], 0x7a6d76e9, 15); er = rotl(er, 10)
+  br = fn2(br, cr, dr, er, ar, m[6], 0x7a6d76e9, 5); dr = rotl(dr, 10)
+  ar = fn2(ar, br, cr, dr, er, m[4], 0x7a6d76e9, 8); cr = rotl(cr, 10)
+  er = fn2(er, ar, br, cr, dr, m[1], 0x7a6d76e9, 11); br = rotl(br, 10)
+  dr = fn2(dr, er, ar, br, cr, m[3], 0x7a6d76e9, 14); ar = rotl(ar, 10)
+  cr = fn2(cr, dr, er, ar, br, m[11], 0x7a6d76e9, 14); er = rotl(er, 10)
+  br = fn2(br, cr, dr, er, ar, m[15], 0x7a6d76e9, 6); dr = rotl(dr, 10)
+  ar = fn2(ar, br, cr, dr, er, m[0], 0x7a6d76e9, 14); cr = rotl(cr, 10)
+  er = fn2(er, ar, br, cr, dr, m[5], 0x7a6d76e9, 6); br = rotl(br, 10)
+  dr = fn2(dr, er, ar, br, cr, m[12], 0x7a6d76e9, 9); ar = rotl(ar, 10)
+  cr = fn2(cr, dr, er, ar, br, m[2], 0x7a6d76e9, 12); er = rotl(er, 10)
+  br = fn2(br, cr, dr, er, ar, m[13], 0x7a6d76e9, 9); dr = rotl(dr, 10)
+  ar = fn2(ar, br, cr, dr, er, m[9], 0x7a6d76e9, 12); cr = rotl(cr, 10)
+  er = fn2(er, ar, br, cr, dr, m[7], 0x7a6d76e9, 5); br = rotl(br, 10)
+  dr = fn2(dr, er, ar, br, cr, m[10], 0x7a6d76e9, 15); ar = rotl(ar, 10)
+  cr = fn2(cr, dr, er, ar, br, m[14], 0x7a6d76e9, 8); er = rotl(er, 10)
 
-    verify: function (message, signature, publicKey) {
-      assert.isBuffer(message, messages.MSG32_TYPE_INVALID)
-      assert.isBufferLength(message, 32, messages.MSG32_LENGTH_INVALID)
+  // M'j = 12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11
+  // K' = 0x00000000
+  // S'j = 8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11
+  br = fn1(br, cr, dr, er, ar, m[12], 0x00000000, 8); dr = rotl(dr, 10)
+  ar = fn1(ar, br, cr, dr, er, m[15], 0x00000000, 5); cr = rotl(cr, 10)
+  er = fn1(er, ar, br, cr, dr, m[10], 0x00000000, 12); br = rotl(br, 10)
+  dr = fn1(dr, er, ar, br, cr, m[4], 0x00000000, 9); ar = rotl(ar, 10)
+  cr = fn1(cr, dr, er, ar, br, m[1], 0x00000000, 12); er = rotl(er, 10)
+  br = fn1(br, cr, dr, er, ar, m[5], 0x00000000, 5); dr = rotl(dr, 10)
+  ar = fn1(ar, br, cr, dr, er, m[8], 0x00000000, 14); cr = rotl(cr, 10)
+  er = fn1(er, ar, br, cr, dr, m[7], 0x00000000, 6); br = rotl(br, 10)
+  dr = fn1(dr, er, ar, br, cr, m[6], 0x00000000, 8); ar = rotl(ar, 10)
+  cr = fn1(cr, dr, er, ar, br, m[2], 0x00000000, 13); er = rotl(er, 10)
+  br = fn1(br, cr, dr, er, ar, m[13], 0x00000000, 6); dr = rotl(dr, 10)
+  ar = fn1(ar, br, cr, dr, er, m[14], 0x00000000, 5); cr = rotl(cr, 10)
+  er = fn1(er, ar, br, cr, dr, m[0], 0x00000000, 15); br = rotl(br, 10)
+  dr = fn1(dr, er, ar, br, cr, m[3], 0x00000000, 13); ar = rotl(ar, 10)
+  cr = fn1(cr, dr, er, ar, br, m[9], 0x00000000, 11); er = rotl(er, 10)
+  br = fn1(br, cr, dr, er, ar, m[11], 0x00000000, 11); dr = rotl(dr, 10)
 
-      assert.isBuffer(signature, messages.ECDSA_SIGNATURE_TYPE_INVALID)
-      assert.isBufferLength(signature, 64, messages.ECDSA_SIGNATURE_LENGTH_INVALID)
+  // change state
+  var t = (this._b + cl + dr) | 0
+  this._b = (this._c + dl + er) | 0
+  this._c = (this._d + el + ar) | 0
+  this._d = (this._e + al + br) | 0
+  this._e = (this._a + bl + cr) | 0
+  this._a = t
+}
 
-      assert.isBuffer(publicKey, messages.EC_PUBLIC_KEY_TYPE_INVALID)
-      assert.isBufferLength2(publicKey, 33, 65, messages.EC_PUBLIC_KEY_LENGTH_INVALID)
+RIPEMD160.prototype._digest = function () {
+  // create padding and handle blocks
+  this._block[this._blockOffset++] = 0x80
+  if (this._blockOffset > 56) {
+    this._block.fill(0, this._blockOffset, 64)
+    this._update()
+    this._blockOffset = 0
+  }
 
-      return secp256k1.verify(message, signature, publicKey)
-    },
+  this._block.fill(0, this._blockOffset, 56)
+  this._block.writeUInt32LE(this._length[0], 56)
+  this._block.writeUInt32LE(this._length[1], 60)
+  this._update()
 
-    recover: function (message, signature, recovery, compressed) {
-      assert.isBuffer(message, messages.MSG32_TYPE_INVALID)
-      assert.isBufferLength(message, 32, messages.MSG32_LENGTH_INVALID)
+  // produce result
+  var buffer = new Buffer(20)
+  buffer.writeInt32LE(this._a, 0)
+  buffer.writeInt32LE(this._b, 4)
+  buffer.writeInt32LE(this._c, 8)
+  buffer.writeInt32LE(this._d, 12)
+  buffer.writeInt32LE(this._e, 16)
+  return buffer
+}
 
-      assert.isBuffer(signature, messages.ECDSA_SIGNATURE_TYPE_INVALID)
-      assert.isBufferLength(signature, 64, messages.ECDSA_SIGNATURE_LENGTH_INVALID)
+function rotl (x, n) {
+  return (x << n) | (x >>> (32 - n))
+}
 
-      assert.isNumber(recovery, messages.RECOVERY_ID_TYPE_INVALID)
-      assert.isNumberInInterval(recovery, -1, 4, messages.RECOVERY_ID_VALUE_INVALID)
+function fn1 (a, b, c, d, e, m, k, s) {
+  return (rotl((a + (b ^ c ^ d) + m + k) | 0, s) + e) | 0
+}
 
-      compressed = initCompressedValue(compressed, true)
+function fn2 (a, b, c, d, e, m, k, s) {
+  return (rotl((a + ((b & c) | ((~b) & d)) + m + k) | 0, s) + e) | 0
+}
 
-      return secp256k1.recover(message, signature, recovery, compressed)
-    },
+function fn3 (a, b, c, d, e, m, k, s) {
+  return (rotl((a + ((b | (~c)) ^ d) + m + k) | 0, s) + e) | 0
+}
 
-    ecdh: function (publicKey, privateKey) {
-      assert.isBuffer(publicKey, messages.EC_PUBLIC_KEY_TYPE_INVALID)
-      assert.isBufferLength2(publicKey, 33, 65, messages.EC_PUBLIC_KEY_LENGTH_INVALID)
+function fn4 (a, b, c, d, e, m, k, s) {
+  return (rotl((a + ((b & d) | (c & (~d))) + m + k) | 0, s) + e) | 0
+}
 
-      assert.isBuffer(privateKey, messages.EC_PRIVATE_KEY_TYPE_INVALID)
-      assert.isBufferLength(privateKey, 32, messages.EC_PRIVATE_KEY_LENGTH_INVALID)
+function fn5 (a, b, c, d, e, m, k, s) {
+  return (rotl((a + (b ^ (c | (~d))) + m + k) | 0, s) + e) | 0
+}
 
-      return secp256k1.ecdh(publicKey, privateKey)
-    },
+module.exports = RIPEMD160
 
-    ecdhUnsafe: function (publicKey, privateKey, compressed) {
-      assert.isBuffer(publicKey, messages.EC_PUBLIC_KEY_TYPE_INVALID)
-      assert.isBufferLength2(publicKey, 33, 65, messages.EC_PUBLIC_KEY_LENGTH_INVALID)
+}).call(this,require("buffer").Buffer)
+},{"buffer":8,"hash-base":19,"inherits":21}],40:[function(require,module,exports){
+/* eslint-disable node/no-deprecated-api */
+var buffer = require('buffer')
+var Buffer = buffer.Buffer
 
-      assert.isBuffer(privateKey, messages.EC_PRIVATE_KEY_TYPE_INVALID)
-      assert.isBufferLength(privateKey, 32, messages.EC_PRIVATE_KEY_LENGTH_INVALID)
+// alternative to using Object.keys for old browsers
+function copyProps (src, dst) {
+  for (var key in src) {
+    dst[key] = src[key]
+  }
+}
+if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {
+  module.exports = buffer
+} else {
+  // Copy properties from require('buffer')
+  copyProps(buffer, exports)
+  exports.Buffer = SafeBuffer
+}
 
-      compressed = initCompressedValue(compressed, true)
+function SafeBuffer (arg, encodingOrOffset, length) {
+  return Buffer(arg, encodingOrOffset, length)
+}
 
-      return secp256k1.ecdhUnsafe(publicKey, privateKey, compressed)
+// Copy static methods from Buffer
+copyProps(Buffer, SafeBuffer)
+
+SafeBuffer.from = function (arg, encodingOrOffset, length) {
+  if (typeof arg === 'number') {
+    throw new TypeError('Argument must not be a number')
+  }
+  return Buffer(arg, encodingOrOffset, length)
+}
+
+SafeBuffer.alloc = function (size, fill, encoding) {
+  if (typeof size !== 'number') {
+    throw new TypeError('Argument must be a number')
+  }
+  var buf = Buffer(size)
+  if (fill !== undefined) {
+    if (typeof encoding === 'string') {
+      buf.fill(fill, encoding)
+    } else {
+      buf.fill(fill)
     }
+  } else {
+    buf.fill(0)
   }
+  return buf
 }
 
-},{"./assert":74,"./der":75,"./messages.json":78}],78:[function(require,module,exports){
-module.exports={
-  "COMPRESSED_TYPE_INVALID": "compressed should be a boolean",
-  "EC_PRIVATE_KEY_TYPE_INVALID": "private key should be a Buffer",
-  "EC_PRIVATE_KEY_LENGTH_INVALID": "private key length is invalid",
-  "EC_PRIVATE_KEY_TWEAK_ADD_FAIL": "tweak out of range or resulting private key is invalid",
-  "EC_PRIVATE_KEY_TWEAK_MUL_FAIL": "tweak out of range",
-  "EC_PRIVATE_KEY_EXPORT_DER_FAIL": "couldn't export to DER format",
-  "EC_PRIVATE_KEY_IMPORT_DER_FAIL": "couldn't import from DER format",
-  "EC_PUBLIC_KEYS_TYPE_INVALID": "public keys should be an Array",
-  "EC_PUBLIC_KEYS_LENGTH_INVALID": "public keys Array should have at least 1 element",
-  "EC_PUBLIC_KEY_TYPE_INVALID": "public key should be a Buffer",
-  "EC_PUBLIC_KEY_LENGTH_INVALID": "public key length is invalid",
-  "EC_PUBLIC_KEY_PARSE_FAIL": "the public key could not be parsed or is invalid",
-  "EC_PUBLIC_KEY_CREATE_FAIL": "private was invalid, try again",
-  "EC_PUBLIC_KEY_TWEAK_ADD_FAIL": "tweak out of range or resulting public key is invalid",
-  "EC_PUBLIC_KEY_TWEAK_MUL_FAIL": "tweak out of range",
-  "EC_PUBLIC_KEY_COMBINE_FAIL": "the sum of the public keys is not valid",
-  "ECDH_FAIL": "scalar was invalid (zero or overflow)",
-  "ECDSA_SIGNATURE_TYPE_INVALID": "signature should be a Buffer",
-  "ECDSA_SIGNATURE_LENGTH_INVALID": "signature length is invalid",
-  "ECDSA_SIGNATURE_PARSE_FAIL": "couldn't parse signature",
-  "ECDSA_SIGNATURE_PARSE_DER_FAIL": "couldn't parse DER signature",
-  "ECDSA_SIGNATURE_SERIALIZE_DER_FAIL": "couldn't serialize signature to DER format",
-  "ECDSA_SIGN_FAIL": "nonce generation function failed or private key is invalid",
-  "ECDSA_RECOVER_FAIL": "couldn't recover public key from signature",
-  "MSG32_TYPE_INVALID": "message should be a Buffer",
-  "MSG32_LENGTH_INVALID": "message length is invalid",
-  "OPTIONS_TYPE_INVALID": "options should be an Object",
-  "OPTIONS_DATA_TYPE_INVALID": "options.data should be a Buffer",
-  "OPTIONS_DATA_LENGTH_INVALID": "options.data length is invalid",
-  "OPTIONS_NONCEFN_TYPE_INVALID": "options.noncefn should be a Function",
-  "RECOVERY_ID_TYPE_INVALID": "recovery should be a Number",
-  "RECOVERY_ID_VALUE_INVALID": "recovery should have value between -1 and 4",
-  "TWEAK_TYPE_INVALID": "tweak should be a Buffer",
-  "TWEAK_LENGTH_INVALID": "tweak length is invalid"
+SafeBuffer.allocUnsafe = function (size) {
+  if (typeof size !== 'number') {
+    throw new TypeError('Argument must be a number')
+  }
+  return Buffer(size)
 }
 
-},{}],79:[function(require,module,exports){
-(function (Buffer){
+SafeBuffer.allocUnsafeSlow = function (size) {
+  if (typeof size !== 'number') {
+    throw new TypeError('Argument must be a number')
+  }
+  return buffer.SlowBuffer(size)
+}
+
+},{"buffer":8}],41:[function(require,module,exports){
+var Buffer = require('safe-buffer').Buffer
+
 // prototype class for hash functions
 function Hash (blockSize, finalSize) {
-  this._block = new Buffer(blockSize)
+  this._block = Buffer.alloc(blockSize)
   this._finalSize = finalSize
   this._blockSize = blockSize
   this._len = 0
-  this._s = 0
 }
 
 Hash.prototype.update = function (data, enc) {
   if (typeof data === 'string') {
     enc = enc || 'utf8'
-    data = new Buffer(data, enc)
+    data = Buffer.from(data, enc)
   }
 
-  var l = this._len += data.length
-  var s = this._s || 0
-  var f = 0
-  var buffer = this._block
+  var block = this._block
+  var blockSize = this._blockSize
+  var length = data.length
+  var accum = this._len
 
-  while (s < l) {
-    var t = Math.min(data.length, f + this._blockSize - (s % this._blockSize))
-    var ch = (t - f)
+  for (var offset = 0; offset < length;) {
+    var assigned = accum % blockSize
+    var remainder = Math.min(length - offset, blockSize - assigned)
 
-    for (var i = 0; i < ch; i++) {
-      buffer[(s % this._blockSize) + i] = data[i + f]
+    for (var i = 0; i < remainder; i++) {
+      block[assigned + i] = data[offset + i]
     }
 
-    s += ch
-    f += ch
+    accum += remainder
+    offset += remainder
 
-    if ((s % this._blockSize) === 0) {
-      this._update(buffer)
+    if ((accum % blockSize) === 0) {
+      this._update(block)
     }
   }
-  this._s = s
 
+  this._len += length
   return this
 }
 
 Hash.prototype.digest = function (enc) {
-  // Suppose the length of the message M, in bits, is l
-  var l = this._len * 8
+  var rem = this._len % this._blockSize
 
-  // Append the bit 1 to the end of the message
-  this._block[this._len % this._blockSize] = 0x80
+  this._block[rem] = 0x80
 
-  // and then k zero bits, where k is the smallest non-negative solution to the equation (l + 1 + k) === finalSize mod blockSize
-  this._block.fill(0, this._len % this._blockSize + 1)
+  // zero (rem + 1) trailing bits, where (rem + 1) is the smallest
+  // non-negative solution to the equation (length + 1 + (rem + 1)) === finalSize mod blockSize
+  this._block.fill(0, rem + 1)
 
-  if (l % (this._blockSize * 8) >= this._finalSize * 8) {
+  if (rem >= this._finalSize) {
     this._update(this._block)
     this._block.fill(0)
   }
 
-  // to this append the block which is equal to the number l written in binary
-  // TODO: handle case where l is > Math.pow(2, 29)
-  this._block.writeInt32BE(l, this._blockSize - 4)
+  var bits = this._len * 8
 
-  var hash = this._update(this._block) || this._hash()
+  // uint32
+  if (bits <= 0xffffffff) {
+    this._block.writeUInt32BE(bits, this._blockSize - 4)
+
+  // uint64
+  } else {
+    var lowBits = bits & 0xffffffff
+    var highBits = (bits - lowBits) / 0x100000000
+
+    this._block.writeUInt32BE(highBits, this._blockSize - 8)
+    this._block.writeUInt32BE(lowBits, this._blockSize - 4)
+  }
+
+  this._update(this._block)
+  var hash = this._hash()
 
   return enc ? hash.toString(enc) : hash
 }
@@ -97081,8 +97819,7 @@ Hash.prototype._update = function () {
 
 module.exports = Hash
 
-}).call(this,require("buffer").Buffer)
-},{"buffer":5}],80:[function(require,module,exports){
+},{"safe-buffer":40}],42:[function(require,module,exports){
 var exports = module.exports = function SHA (algorithm) {
   algorithm = algorithm.toLowerCase()
 
@@ -97099,8 +97836,7 @@ exports.sha256 = require('./sha256')
 exports.sha384 = require('./sha384')
 exports.sha512 = require('./sha512')
 
-},{"./sha":81,"./sha1":82,"./sha224":83,"./sha256":84,"./sha384":85,"./sha512":86}],81:[function(require,module,exports){
-(function (Buffer){
+},{"./sha":43,"./sha1":44,"./sha224":45,"./sha256":46,"./sha384":47,"./sha512":48}],43:[function(require,module,exports){
 /*
  * A JavaScript implementation of the Secure Hash Algorithm, SHA-0, as defined
  * in FIPS PUB 180-1
@@ -97111,6 +97847,7 @@ exports.sha512 = require('./sha512')
 
 var inherits = require('inherits')
 var Hash = require('./hash')
+var Buffer = require('safe-buffer').Buffer
 
 var K = [
   0x5a827999, 0x6ed9eba1, 0x8f1bbcdc | 0, 0xca62c1d6 | 0
@@ -97182,7 +97919,7 @@ Sha.prototype._update = function (M) {
 }
 
 Sha.prototype._hash = function () {
-  var H = new Buffer(20)
+  var H = Buffer.allocUnsafe(20)
 
   H.writeInt32BE(this._a | 0, 0)
   H.writeInt32BE(this._b | 0, 4)
@@ -97195,9 +97932,7 @@ Sha.prototype._hash = function () {
 
 module.exports = Sha
 
-}).call(this,require("buffer").Buffer)
-},{"./hash":79,"buffer":5,"inherits":63}],82:[function(require,module,exports){
-(function (Buffer){
+},{"./hash":41,"inherits":21,"safe-buffer":40}],44:[function(require,module,exports){
 /*
  * A JavaScript implementation of the Secure Hash Algorithm, SHA-1, as defined
  * in FIPS PUB 180-1
@@ -97209,6 +97944,7 @@ module.exports = Sha
 
 var inherits = require('inherits')
 var Hash = require('./hash')
+var Buffer = require('safe-buffer').Buffer
 
 var K = [
   0x5a827999, 0x6ed9eba1, 0x8f1bbcdc | 0, 0xca62c1d6 | 0
@@ -97284,7 +98020,7 @@ Sha1.prototype._update = function (M) {
 }
 
 Sha1.prototype._hash = function () {
-  var H = new Buffer(20)
+  var H = Buffer.allocUnsafe(20)
 
   H.writeInt32BE(this._a | 0, 0)
   H.writeInt32BE(this._b | 0, 4)
@@ -97295,555 +98031,1434 @@ Sha1.prototype._hash = function () {
   return H
 }
 
-module.exports = Sha1
+module.exports = Sha1
+
+},{"./hash":41,"inherits":21,"safe-buffer":40}],45:[function(require,module,exports){
+/**
+ * A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as defined
+ * in FIPS 180-2
+ * Version 2.2-beta Copyright Angel Marin, Paul Johnston 2000 - 2009.
+ * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
+ *
+ */
+
+var inherits = require('inherits')
+var Sha256 = require('./sha256')
+var Hash = require('./hash')
+var Buffer = require('safe-buffer').Buffer
+
+var W = new Array(64)
+
+function Sha224 () {
+  this.init()
+
+  this._w = W // new Array(64)
+
+  Hash.call(this, 64, 56)
+}
+
+inherits(Sha224, Sha256)
+
+Sha224.prototype.init = function () {
+  this._a = 0xc1059ed8
+  this._b = 0x367cd507
+  this._c = 0x3070dd17
+  this._d = 0xf70e5939
+  this._e = 0xffc00b31
+  this._f = 0x68581511
+  this._g = 0x64f98fa7
+  this._h = 0xbefa4fa4
+
+  return this
+}
+
+Sha224.prototype._hash = function () {
+  var H = Buffer.allocUnsafe(28)
+
+  H.writeInt32BE(this._a, 0)
+  H.writeInt32BE(this._b, 4)
+  H.writeInt32BE(this._c, 8)
+  H.writeInt32BE(this._d, 12)
+  H.writeInt32BE(this._e, 16)
+  H.writeInt32BE(this._f, 20)
+  H.writeInt32BE(this._g, 24)
+
+  return H
+}
+
+module.exports = Sha224
+
+},{"./hash":41,"./sha256":46,"inherits":21,"safe-buffer":40}],46:[function(require,module,exports){
+/**
+ * A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as defined
+ * in FIPS 180-2
+ * Version 2.2-beta Copyright Angel Marin, Paul Johnston 2000 - 2009.
+ * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
+ *
+ */
+
+var inherits = require('inherits')
+var Hash = require('./hash')
+var Buffer = require('safe-buffer').Buffer
+
+var K = [
+  0x428A2F98, 0x71374491, 0xB5C0FBCF, 0xE9B5DBA5,
+  0x3956C25B, 0x59F111F1, 0x923F82A4, 0xAB1C5ED5,
+  0xD807AA98, 0x12835B01, 0x243185BE, 0x550C7DC3,
+  0x72BE5D74, 0x80DEB1FE, 0x9BDC06A7, 0xC19BF174,
+  0xE49B69C1, 0xEFBE4786, 0x0FC19DC6, 0x240CA1CC,
+  0x2DE92C6F, 0x4A7484AA, 0x5CB0A9DC, 0x76F988DA,
+  0x983E5152, 0xA831C66D, 0xB00327C8, 0xBF597FC7,
+  0xC6E00BF3, 0xD5A79147, 0x06CA6351, 0x14292967,
+  0x27B70A85, 0x2E1B2138, 0x4D2C6DFC, 0x53380D13,
+  0x650A7354, 0x766A0ABB, 0x81C2C92E, 0x92722C85,
+  0xA2BFE8A1, 0xA81A664B, 0xC24B8B70, 0xC76C51A3,
+  0xD192E819, 0xD6990624, 0xF40E3585, 0x106AA070,
+  0x19A4C116, 0x1E376C08, 0x2748774C, 0x34B0BCB5,
+  0x391C0CB3, 0x4ED8AA4A, 0x5B9CCA4F, 0x682E6FF3,
+  0x748F82EE, 0x78A5636F, 0x84C87814, 0x8CC70208,
+  0x90BEFFFA, 0xA4506CEB, 0xBEF9A3F7, 0xC67178F2
+]
+
+var W = new Array(64)
+
+function Sha256 () {
+  this.init()
+
+  this._w = W // new Array(64)
+
+  Hash.call(this, 64, 56)
+}
+
+inherits(Sha256, Hash)
+
+Sha256.prototype.init = function () {
+  this._a = 0x6a09e667
+  this._b = 0xbb67ae85
+  this._c = 0x3c6ef372
+  this._d = 0xa54ff53a
+  this._e = 0x510e527f
+  this._f = 0x9b05688c
+  this._g = 0x1f83d9ab
+  this._h = 0x5be0cd19
+
+  return this
+}
+
+function ch (x, y, z) {
+  return z ^ (x & (y ^ z))
+}
+
+function maj (x, y, z) {
+  return (x & y) | (z & (x | y))
+}
+
+function sigma0 (x) {
+  return (x >>> 2 | x << 30) ^ (x >>> 13 | x << 19) ^ (x >>> 22 | x << 10)
+}
+
+function sigma1 (x) {
+  return (x >>> 6 | x << 26) ^ (x >>> 11 | x << 21) ^ (x >>> 25 | x << 7)
+}
+
+function gamma0 (x) {
+  return (x >>> 7 | x << 25) ^ (x >>> 18 | x << 14) ^ (x >>> 3)
+}
+
+function gamma1 (x) {
+  return (x >>> 17 | x << 15) ^ (x >>> 19 | x << 13) ^ (x >>> 10)
+}
+
+Sha256.prototype._update = function (M) {
+  var W = this._w
+
+  var a = this._a | 0
+  var b = this._b | 0
+  var c = this._c | 0
+  var d = this._d | 0
+  var e = this._e | 0
+  var f = this._f | 0
+  var g = this._g | 0
+  var h = this._h | 0
+
+  for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4)
+  for (; i < 64; ++i) W[i] = (gamma1(W[i - 2]) + W[i - 7] + gamma0(W[i - 15]) + W[i - 16]) | 0
+
+  for (var j = 0; j < 64; ++j) {
+    var T1 = (h + sigma1(e) + ch(e, f, g) + K[j] + W[j]) | 0
+    var T2 = (sigma0(a) + maj(a, b, c)) | 0
+
+    h = g
+    g = f
+    f = e
+    e = (d + T1) | 0
+    d = c
+    c = b
+    b = a
+    a = (T1 + T2) | 0
+  }
+
+  this._a = (a + this._a) | 0
+  this._b = (b + this._b) | 0
+  this._c = (c + this._c) | 0
+  this._d = (d + this._d) | 0
+  this._e = (e + this._e) | 0
+  this._f = (f + this._f) | 0
+  this._g = (g + this._g) | 0
+  this._h = (h + this._h) | 0
+}
+
+Sha256.prototype._hash = function () {
+  var H = Buffer.allocUnsafe(32)
+
+  H.writeInt32BE(this._a, 0)
+  H.writeInt32BE(this._b, 4)
+  H.writeInt32BE(this._c, 8)
+  H.writeInt32BE(this._d, 12)
+  H.writeInt32BE(this._e, 16)
+  H.writeInt32BE(this._f, 20)
+  H.writeInt32BE(this._g, 24)
+  H.writeInt32BE(this._h, 28)
+
+  return H
+}
+
+module.exports = Sha256
+
+},{"./hash":41,"inherits":21,"safe-buffer":40}],47:[function(require,module,exports){
+var inherits = require('inherits')
+var SHA512 = require('./sha512')
+var Hash = require('./hash')
+var Buffer = require('safe-buffer').Buffer
+
+var W = new Array(160)
+
+function Sha384 () {
+  this.init()
+  this._w = W
+
+  Hash.call(this, 128, 112)
+}
+
+inherits(Sha384, SHA512)
+
+Sha384.prototype.init = function () {
+  this._ah = 0xcbbb9d5d
+  this._bh = 0x629a292a
+  this._ch = 0x9159015a
+  this._dh = 0x152fecd8
+  this._eh = 0x67332667
+  this._fh = 0x8eb44a87
+  this._gh = 0xdb0c2e0d
+  this._hh = 0x47b5481d
+
+  this._al = 0xc1059ed8
+  this._bl = 0x367cd507
+  this._cl = 0x3070dd17
+  this._dl = 0xf70e5939
+  this._el = 0xffc00b31
+  this._fl = 0x68581511
+  this._gl = 0x64f98fa7
+  this._hl = 0xbefa4fa4
+
+  return this
+}
+
+Sha384.prototype._hash = function () {
+  var H = Buffer.allocUnsafe(48)
+
+  function writeInt64BE (h, l, offset) {
+    H.writeInt32BE(h, offset)
+    H.writeInt32BE(l, offset + 4)
+  }
+
+  writeInt64BE(this._ah, this._al, 0)
+  writeInt64BE(this._bh, this._bl, 8)
+  writeInt64BE(this._ch, this._cl, 16)
+  writeInt64BE(this._dh, this._dl, 24)
+  writeInt64BE(this._eh, this._el, 32)
+  writeInt64BE(this._fh, this._fl, 40)
+
+  return H
+}
+
+module.exports = Sha384
+
+},{"./hash":41,"./sha512":48,"inherits":21,"safe-buffer":40}],48:[function(require,module,exports){
+var inherits = require('inherits')
+var Hash = require('./hash')
+var Buffer = require('safe-buffer').Buffer
+
+var K = [
+  0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd,
+  0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc,
+  0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019,
+  0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118,
+  0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe,
+  0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2,
+  0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1,
+  0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694,
+  0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3,
+  0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65,
+  0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483,
+  0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5,
+  0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210,
+  0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4,
+  0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725,
+  0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70,
+  0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926,
+  0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df,
+  0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8,
+  0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b,
+  0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001,
+  0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30,
+  0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910,
+  0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8,
+  0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53,
+  0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8,
+  0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb,
+  0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3,
+  0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60,
+  0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec,
+  0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9,
+  0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b,
+  0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207,
+  0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178,
+  0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6,
+  0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b,
+  0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493,
+  0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c,
+  0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a,
+  0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817
+]
+
+var W = new Array(160)
+
+function Sha512 () {
+  this.init()
+  this._w = W
+
+  Hash.call(this, 128, 112)
+}
+
+inherits(Sha512, Hash)
+
+Sha512.prototype.init = function () {
+  this._ah = 0x6a09e667
+  this._bh = 0xbb67ae85
+  this._ch = 0x3c6ef372
+  this._dh = 0xa54ff53a
+  this._eh = 0x510e527f
+  this._fh = 0x9b05688c
+  this._gh = 0x1f83d9ab
+  this._hh = 0x5be0cd19
+
+  this._al = 0xf3bcc908
+  this._bl = 0x84caa73b
+  this._cl = 0xfe94f82b
+  this._dl = 0x5f1d36f1
+  this._el = 0xade682d1
+  this._fl = 0x2b3e6c1f
+  this._gl = 0xfb41bd6b
+  this._hl = 0x137e2179
+
+  return this
+}
+
+function Ch (x, y, z) {
+  return z ^ (x & (y ^ z))
+}
+
+function maj (x, y, z) {
+  return (x & y) | (z & (x | y))
+}
+
+function sigma0 (x, xl) {
+  return (x >>> 28 | xl << 4) ^ (xl >>> 2 | x << 30) ^ (xl >>> 7 | x << 25)
+}
+
+function sigma1 (x, xl) {
+  return (x >>> 14 | xl << 18) ^ (x >>> 18 | xl << 14) ^ (xl >>> 9 | x << 23)
+}
+
+function Gamma0 (x, xl) {
+  return (x >>> 1 | xl << 31) ^ (x >>> 8 | xl << 24) ^ (x >>> 7)
+}
+
+function Gamma0l (x, xl) {
+  return (x >>> 1 | xl << 31) ^ (x >>> 8 | xl << 24) ^ (x >>> 7 | xl << 25)
+}
+
+function Gamma1 (x, xl) {
+  return (x >>> 19 | xl << 13) ^ (xl >>> 29 | x << 3) ^ (x >>> 6)
+}
+
+function Gamma1l (x, xl) {
+  return (x >>> 19 | xl << 13) ^ (xl >>> 29 | x << 3) ^ (x >>> 6 | xl << 26)
+}
+
+function getCarry (a, b) {
+  return (a >>> 0) < (b >>> 0) ? 1 : 0
+}
+
+Sha512.prototype._update = function (M) {
+  var W = this._w
+
+  var ah = this._ah | 0
+  var bh = this._bh | 0
+  var ch = this._ch | 0
+  var dh = this._dh | 0
+  var eh = this._eh | 0
+  var fh = this._fh | 0
+  var gh = this._gh | 0
+  var hh = this._hh | 0
+
+  var al = this._al | 0
+  var bl = this._bl | 0
+  var cl = this._cl | 0
+  var dl = this._dl | 0
+  var el = this._el | 0
+  var fl = this._fl | 0
+  var gl = this._gl | 0
+  var hl = this._hl | 0
+
+  for (var i = 0; i < 32; i += 2) {
+    W[i] = M.readInt32BE(i * 4)
+    W[i + 1] = M.readInt32BE(i * 4 + 4)
+  }
+  for (; i < 160; i += 2) {
+    var xh = W[i - 15 * 2]
+    var xl = W[i - 15 * 2 + 1]
+    var gamma0 = Gamma0(xh, xl)
+    var gamma0l = Gamma0l(xl, xh)
+
+    xh = W[i - 2 * 2]
+    xl = W[i - 2 * 2 + 1]
+    var gamma1 = Gamma1(xh, xl)
+    var gamma1l = Gamma1l(xl, xh)
+
+    // W[i] = gamma0 + W[i - 7] + gamma1 + W[i - 16]
+    var Wi7h = W[i - 7 * 2]
+    var Wi7l = W[i - 7 * 2 + 1]
+
+    var Wi16h = W[i - 16 * 2]
+    var Wi16l = W[i - 16 * 2 + 1]
+
+    var Wil = (gamma0l + Wi7l) | 0
+    var Wih = (gamma0 + Wi7h + getCarry(Wil, gamma0l)) | 0
+    Wil = (Wil + gamma1l) | 0
+    Wih = (Wih + gamma1 + getCarry(Wil, gamma1l)) | 0
+    Wil = (Wil + Wi16l) | 0
+    Wih = (Wih + Wi16h + getCarry(Wil, Wi16l)) | 0
+
+    W[i] = Wih
+    W[i + 1] = Wil
+  }
+
+  for (var j = 0; j < 160; j += 2) {
+    Wih = W[j]
+    Wil = W[j + 1]
+
+    var majh = maj(ah, bh, ch)
+    var majl = maj(al, bl, cl)
+
+    var sigma0h = sigma0(ah, al)
+    var sigma0l = sigma0(al, ah)
+    var sigma1h = sigma1(eh, el)
+    var sigma1l = sigma1(el, eh)
+
+    // t1 = h + sigma1 + ch + K[j] + W[j]
+    var Kih = K[j]
+    var Kil = K[j + 1]
+
+    var chh = Ch(eh, fh, gh)
+    var chl = Ch(el, fl, gl)
+
+    var t1l = (hl + sigma1l) | 0
+    var t1h = (hh + sigma1h + getCarry(t1l, hl)) | 0
+    t1l = (t1l + chl) | 0
+    t1h = (t1h + chh + getCarry(t1l, chl)) | 0
+    t1l = (t1l + Kil) | 0
+    t1h = (t1h + Kih + getCarry(t1l, Kil)) | 0
+    t1l = (t1l + Wil) | 0
+    t1h = (t1h + Wih + getCarry(t1l, Wil)) | 0
+
+    // t2 = sigma0 + maj
+    var t2l = (sigma0l + majl) | 0
+    var t2h = (sigma0h + majh + getCarry(t2l, sigma0l)) | 0
+
+    hh = gh
+    hl = gl
+    gh = fh
+    gl = fl
+    fh = eh
+    fl = el
+    el = (dl + t1l) | 0
+    eh = (dh + t1h + getCarry(el, dl)) | 0
+    dh = ch
+    dl = cl
+    ch = bh
+    cl = bl
+    bh = ah
+    bl = al
+    al = (t1l + t2l) | 0
+    ah = (t1h + t2h + getCarry(al, t1l)) | 0
+  }
+
+  this._al = (this._al + al) | 0
+  this._bl = (this._bl + bl) | 0
+  this._cl = (this._cl + cl) | 0
+  this._dl = (this._dl + dl) | 0
+  this._el = (this._el + el) | 0
+  this._fl = (this._fl + fl) | 0
+  this._gl = (this._gl + gl) | 0
+  this._hl = (this._hl + hl) | 0
+
+  this._ah = (this._ah + ah + getCarry(this._al, al)) | 0
+  this._bh = (this._bh + bh + getCarry(this._bl, bl)) | 0
+  this._ch = (this._ch + ch + getCarry(this._cl, cl)) | 0
+  this._dh = (this._dh + dh + getCarry(this._dl, dl)) | 0
+  this._eh = (this._eh + eh + getCarry(this._el, el)) | 0
+  this._fh = (this._fh + fh + getCarry(this._fl, fl)) | 0
+  this._gh = (this._gh + gh + getCarry(this._gl, gl)) | 0
+  this._hh = (this._hh + hh + getCarry(this._hl, hl)) | 0
+}
+
+Sha512.prototype._hash = function () {
+  var H = Buffer.allocUnsafe(64)
+
+  function writeInt64BE (h, l, offset) {
+    H.writeInt32BE(h, offset)
+    H.writeInt32BE(l, offset + 4)
+  }
+
+  writeInt64BE(this._ah, this._al, 0)
+  writeInt64BE(this._bh, this._bl, 8)
+  writeInt64BE(this._ch, this._cl, 16)
+  writeInt64BE(this._dh, this._dl, 24)
+  writeInt64BE(this._eh, this._el, 32)
+  writeInt64BE(this._fh, this._fl, 40)
+  writeInt64BE(this._gh, this._gl, 48)
+  writeInt64BE(this._hh, this._hl, 56)
+
+  return H
+}
+
+module.exports = Sha512
 
-}).call(this,require("buffer").Buffer)
-},{"./hash":79,"buffer":5,"inherits":63}],83:[function(require,module,exports){
-(function (Buffer){
-/**
- * A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as defined
- * in FIPS 180-2
- * Version 2.2-beta Copyright Angel Marin, Paul Johnston 2000 - 2009.
- * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
- *
- */
+},{"./hash":41,"inherits":21,"safe-buffer":40}],49:[function(require,module,exports){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-var inherits = require('inherits')
-var Sha256 = require('./sha256')
-var Hash = require('./hash')
+module.exports = Stream;
 
-var W = new Array(64)
+var EE = require('events').EventEmitter;
+var inherits = require('inherits');
 
-function Sha224 () {
-  this.init()
+inherits(Stream, EE);
+Stream.Readable = require('readable-stream/readable.js');
+Stream.Writable = require('readable-stream/writable.js');
+Stream.Duplex = require('readable-stream/duplex.js');
+Stream.Transform = require('readable-stream/transform.js');
+Stream.PassThrough = require('readable-stream/passthrough.js');
 
-  this._w = W // new Array(64)
+// Backwards-compat with node 0.4.x
+Stream.Stream = Stream;
 
-  Hash.call(this, 64, 56)
-}
 
-inherits(Sha224, Sha256)
 
-Sha224.prototype.init = function () {
-  this._a = 0xc1059ed8
-  this._b = 0x367cd507
-  this._c = 0x3070dd17
-  this._d = 0xf70e5939
-  this._e = 0xffc00b31
-  this._f = 0x68581511
-  this._g = 0x64f98fa7
-  this._h = 0xbefa4fa4
+// old-style streams.  Note that the pipe method (the only relevant
+// part of this class) is overridden in the Readable class.
 
-  return this
+function Stream() {
+  EE.call(this);
 }
 
-Sha224.prototype._hash = function () {
-  var H = new Buffer(28)
+Stream.prototype.pipe = function(dest, options) {
+  var source = this;
 
-  H.writeInt32BE(this._a, 0)
-  H.writeInt32BE(this._b, 4)
-  H.writeInt32BE(this._c, 8)
-  H.writeInt32BE(this._d, 12)
-  H.writeInt32BE(this._e, 16)
-  H.writeInt32BE(this._f, 20)
-  H.writeInt32BE(this._g, 24)
+  function ondata(chunk) {
+    if (dest.writable) {
+      if (false === dest.write(chunk) && source.pause) {
+        source.pause();
+      }
+    }
+  }
 
-  return H
-}
+  source.on('data', ondata);
 
-module.exports = Sha224
+  function ondrain() {
+    if (source.readable && source.resume) {
+      source.resume();
+    }
+  }
 
-}).call(this,require("buffer").Buffer)
-},{"./hash":79,"./sha256":84,"buffer":5,"inherits":63}],84:[function(require,module,exports){
-(function (Buffer){
-/**
- * A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as defined
- * in FIPS 180-2
- * Version 2.2-beta Copyright Angel Marin, Paul Johnston 2000 - 2009.
- * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
- *
- */
+  dest.on('drain', ondrain);
 
-var inherits = require('inherits')
-var Hash = require('./hash')
+  // If the 'end' option is not supplied, dest.end() will be called when
+  // source gets the 'end' or 'close' events.  Only dest.end() once.
+  if (!dest._isStdio && (!options || options.end !== false)) {
+    source.on('end', onend);
+    source.on('close', onclose);
+  }
 
-var K = [
-  0x428A2F98, 0x71374491, 0xB5C0FBCF, 0xE9B5DBA5,
-  0x3956C25B, 0x59F111F1, 0x923F82A4, 0xAB1C5ED5,
-  0xD807AA98, 0x12835B01, 0x243185BE, 0x550C7DC3,
-  0x72BE5D74, 0x80DEB1FE, 0x9BDC06A7, 0xC19BF174,
-  0xE49B69C1, 0xEFBE4786, 0x0FC19DC6, 0x240CA1CC,
-  0x2DE92C6F, 0x4A7484AA, 0x5CB0A9DC, 0x76F988DA,
-  0x983E5152, 0xA831C66D, 0xB00327C8, 0xBF597FC7,
-  0xC6E00BF3, 0xD5A79147, 0x06CA6351, 0x14292967,
-  0x27B70A85, 0x2E1B2138, 0x4D2C6DFC, 0x53380D13,
-  0x650A7354, 0x766A0ABB, 0x81C2C92E, 0x92722C85,
-  0xA2BFE8A1, 0xA81A664B, 0xC24B8B70, 0xC76C51A3,
-  0xD192E819, 0xD6990624, 0xF40E3585, 0x106AA070,
-  0x19A4C116, 0x1E376C08, 0x2748774C, 0x34B0BCB5,
-  0x391C0CB3, 0x4ED8AA4A, 0x5B9CCA4F, 0x682E6FF3,
-  0x748F82EE, 0x78A5636F, 0x84C87814, 0x8CC70208,
-  0x90BEFFFA, 0xA4506CEB, 0xBEF9A3F7, 0xC67178F2
-]
+  var didOnEnd = false;
+  function onend() {
+    if (didOnEnd) return;
+    didOnEnd = true;
 
-var W = new Array(64)
+    dest.end();
+  }
 
-function Sha256 () {
-  this.init()
 
-  this._w = W // new Array(64)
+  function onclose() {
+    if (didOnEnd) return;
+    didOnEnd = true;
 
-  Hash.call(this, 64, 56)
-}
+    if (typeof dest.destroy === 'function') dest.destroy();
+  }
 
-inherits(Sha256, Hash)
+  // don't leave dangling pipes when there are errors.
+  function onerror(er) {
+    cleanup();
+    if (EE.listenerCount(this, 'error') === 0) {
+      throw er; // Unhandled stream error in pipe.
+    }
+  }
 
-Sha256.prototype.init = function () {
-  this._a = 0x6a09e667
-  this._b = 0xbb67ae85
-  this._c = 0x3c6ef372
-  this._d = 0xa54ff53a
-  this._e = 0x510e527f
-  this._f = 0x9b05688c
-  this._g = 0x1f83d9ab
-  this._h = 0x5be0cd19
+  source.on('error', onerror);
+  dest.on('error', onerror);
 
-  return this
-}
+  // remove all the event listeners that were added.
+  function cleanup() {
+    source.removeListener('data', ondata);
+    dest.removeListener('drain', ondrain);
 
-function ch (x, y, z) {
-  return z ^ (x & (y ^ z))
-}
+    source.removeListener('end', onend);
+    source.removeListener('close', onclose);
 
-function maj (x, y, z) {
-  return (x & y) | (z & (x | y))
-}
+    source.removeListener('error', onerror);
+    dest.removeListener('error', onerror);
 
-function sigma0 (x) {
-  return (x >>> 2 | x << 30) ^ (x >>> 13 | x << 19) ^ (x >>> 22 | x << 10)
-}
+    source.removeListener('end', cleanup);
+    source.removeListener('close', cleanup);
 
-function sigma1 (x) {
-  return (x >>> 6 | x << 26) ^ (x >>> 11 | x << 21) ^ (x >>> 25 | x << 7)
-}
+    dest.removeListener('close', cleanup);
+  }
 
-function gamma0 (x) {
-  return (x >>> 7 | x << 25) ^ (x >>> 18 | x << 14) ^ (x >>> 3)
-}
+  source.on('end', cleanup);
+  source.on('close', cleanup);
 
-function gamma1 (x) {
-  return (x >>> 17 | x << 15) ^ (x >>> 19 | x << 13) ^ (x >>> 10)
-}
+  dest.on('close', cleanup);
 
-Sha256.prototype._update = function (M) {
-  var W = this._w
+  dest.emit('pipe', source);
 
-  var a = this._a | 0
-  var b = this._b | 0
-  var c = this._c | 0
-  var d = this._d | 0
-  var e = this._e | 0
-  var f = this._f | 0
-  var g = this._g | 0
-  var h = this._h | 0
+  // Allow for unix-like usage: A.pipe(B).pipe(C)
+  return dest;
+};
 
-  for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4)
-  for (; i < 64; ++i) W[i] = (gamma1(W[i - 2]) + W[i - 7] + gamma0(W[i - 15]) + W[i - 16]) | 0
+},{"events":18,"inherits":21,"readable-stream/duplex.js":26,"readable-stream/passthrough.js":35,"readable-stream/readable.js":36,"readable-stream/transform.js":37,"readable-stream/writable.js":38}],50:[function(require,module,exports){
+'use strict';
 
-  for (var j = 0; j < 64; ++j) {
-    var T1 = (h + sigma1(e) + ch(e, f, g) + K[j] + W[j]) | 0
-    var T2 = (sigma0(a) + maj(a, b, c)) | 0
+var Buffer = require('safe-buffer').Buffer;
 
-    h = g
-    g = f
-    f = e
-    e = (d + T1) | 0
-    d = c
-    c = b
-    b = a
-    a = (T1 + T2) | 0
+var isEncoding = Buffer.isEncoding || function (encoding) {
+  encoding = '' + encoding;
+  switch (encoding && encoding.toLowerCase()) {
+    case 'hex':case 'utf8':case 'utf-8':case 'ascii':case 'binary':case 'base64':case 'ucs2':case 'ucs-2':case 'utf16le':case 'utf-16le':case 'raw':
+      return true;
+    default:
+      return false;
   }
+};
 
-  this._a = (a + this._a) | 0
-  this._b = (b + this._b) | 0
-  this._c = (c + this._c) | 0
-  this._d = (d + this._d) | 0
-  this._e = (e + this._e) | 0
-  this._f = (f + this._f) | 0
-  this._g = (g + this._g) | 0
-  this._h = (h + this._h) | 0
+function _normalizeEncoding(enc) {
+  if (!enc) return 'utf8';
+  var retried;
+  while (true) {
+    switch (enc) {
+      case 'utf8':
+      case 'utf-8':
+        return 'utf8';
+      case 'ucs2':
+      case 'ucs-2':
+      case 'utf16le':
+      case 'utf-16le':
+        return 'utf16le';
+      case 'latin1':
+      case 'binary':
+        return 'latin1';
+      case 'base64':
+      case 'ascii':
+      case 'hex':
+        return enc;
+      default:
+        if (retried) return; // undefined
+        enc = ('' + enc).toLowerCase();
+        retried = true;
+    }
+  }
+};
+
+// Do not cache `Buffer.isEncoding` when checking encoding names as some
+// modules monkey-patch it to support additional encodings
+function normalizeEncoding(enc) {
+  var nenc = _normalizeEncoding(enc);
+  if (typeof nenc !== 'string' && (Buffer.isEncoding === isEncoding || !isEncoding(enc))) throw new Error('Unknown encoding: ' + enc);
+  return nenc || enc;
 }
 
-Sha256.prototype._hash = function () {
-  var H = new Buffer(32)
+// StringDecoder provides an interface for efficiently splitting a series of
+// buffers into a series of JS strings without breaking apart multi-byte
+// characters.
+exports.StringDecoder = StringDecoder;
+function StringDecoder(encoding) {
+  this.encoding = normalizeEncoding(encoding);
+  var nb;
+  switch (this.encoding) {
+    case 'utf16le':
+      this.text = utf16Text;
+      this.end = utf16End;
+      nb = 4;
+      break;
+    case 'utf8':
+      this.fillLast = utf8FillLast;
+      nb = 4;
+      break;
+    case 'base64':
+      this.text = base64Text;
+      this.end = base64End;
+      nb = 3;
+      break;
+    default:
+      this.write = simpleWrite;
+      this.end = simpleEnd;
+      return;
+  }
+  this.lastNeed = 0;
+  this.lastTotal = 0;
+  this.lastChar = Buffer.allocUnsafe(nb);
+}
 
-  H.writeInt32BE(this._a, 0)
-  H.writeInt32BE(this._b, 4)
-  H.writeInt32BE(this._c, 8)
-  H.writeInt32BE(this._d, 12)
-  H.writeInt32BE(this._e, 16)
-  H.writeInt32BE(this._f, 20)
-  H.writeInt32BE(this._g, 24)
-  H.writeInt32BE(this._h, 28)
+StringDecoder.prototype.write = function (buf) {
+  if (buf.length === 0) return '';
+  var r;
+  var i;
+  if (this.lastNeed) {
+    r = this.fillLast(buf);
+    if (r === undefined) return '';
+    i = this.lastNeed;
+    this.lastNeed = 0;
+  } else {
+    i = 0;
+  }
+  if (i < buf.length) return r ? r + this.text(buf, i) : this.text(buf, i);
+  return r || '';
+};
 
-  return H
-}
+StringDecoder.prototype.end = utf8End;
 
-module.exports = Sha256
+// Returns only complete characters in a Buffer
+StringDecoder.prototype.text = utf8Text;
 
-}).call(this,require("buffer").Buffer)
-},{"./hash":79,"buffer":5,"inherits":63}],85:[function(require,module,exports){
-(function (Buffer){
-var inherits = require('inherits')
-var SHA512 = require('./sha512')
-var Hash = require('./hash')
+// Attempts to complete a partial non-UTF-8 character using bytes from a Buffer
+StringDecoder.prototype.fillLast = function (buf) {
+  if (this.lastNeed <= buf.length) {
+    buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, this.lastNeed);
+    return this.lastChar.toString(this.encoding, 0, this.lastTotal);
+  }
+  buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, buf.length);
+  this.lastNeed -= buf.length;
+};
 
-var W = new Array(160)
+// Checks the type of a UTF-8 byte, whether it's ASCII, a leading byte, or a
+// continuation byte.
+function utf8CheckByte(byte) {
+  if (byte <= 0x7F) return 0;else if (byte >> 5 === 0x06) return 2;else if (byte >> 4 === 0x0E) return 3;else if (byte >> 3 === 0x1E) return 4;
+  return -1;
+}
 
-function Sha384 () {
-  this.init()
-  this._w = W
+// Checks at most 3 bytes at the end of a Buffer in order to detect an
+// incomplete multi-byte UTF-8 character. The total number of bytes (2, 3, or 4)
+// needed to complete the UTF-8 character (if applicable) are returned.
+function utf8CheckIncomplete(self, buf, i) {
+  var j = buf.length - 1;
+  if (j < i) return 0;
+  var nb = utf8CheckByte(buf[j]);
+  if (nb >= 0) {
+    if (nb > 0) self.lastNeed = nb - 1;
+    return nb;
+  }
+  if (--j < i) return 0;
+  nb = utf8CheckByte(buf[j]);
+  if (nb >= 0) {
+    if (nb > 0) self.lastNeed = nb - 2;
+    return nb;
+  }
+  if (--j < i) return 0;
+  nb = utf8CheckByte(buf[j]);
+  if (nb >= 0) {
+    if (nb > 0) {
+      if (nb === 2) nb = 0;else self.lastNeed = nb - 3;
+    }
+    return nb;
+  }
+  return 0;
+}
 
-  Hash.call(this, 128, 112)
+// Validates as many continuation bytes for a multi-byte UTF-8 character as
+// needed or are available. If we see a non-continuation byte where we expect
+// one, we "replace" the validated continuation bytes we've seen so far with
+// UTF-8 replacement characters ('\ufffd'), to match v8's UTF-8 decoding
+// behavior. The continuation byte check is included three times in the case
+// where all of the continuation bytes for a character exist in the same buffer.
+// It is also done this way as a slight performance increase instead of using a
+// loop.
+function utf8CheckExtraBytes(self, buf, p) {
+  if ((buf[0] & 0xC0) !== 0x80) {
+    self.lastNeed = 0;
+    return '\ufffd'.repeat(p);
+  }
+  if (self.lastNeed > 1 && buf.length > 1) {
+    if ((buf[1] & 0xC0) !== 0x80) {
+      self.lastNeed = 1;
+      return '\ufffd'.repeat(p + 1);
+    }
+    if (self.lastNeed > 2 && buf.length > 2) {
+      if ((buf[2] & 0xC0) !== 0x80) {
+        self.lastNeed = 2;
+        return '\ufffd'.repeat(p + 2);
+      }
+    }
+  }
 }
 
-inherits(Sha384, SHA512)
+// Attempts to complete a multi-byte UTF-8 character using bytes from a Buffer.
+function utf8FillLast(buf) {
+  var p = this.lastTotal - this.lastNeed;
+  var r = utf8CheckExtraBytes(this, buf, p);
+  if (r !== undefined) return r;
+  if (this.lastNeed <= buf.length) {
+    buf.copy(this.lastChar, p, 0, this.lastNeed);
+    return this.lastChar.toString(this.encoding, 0, this.lastTotal);
+  }
+  buf.copy(this.lastChar, p, 0, buf.length);
+  this.lastNeed -= buf.length;
+}
 
-Sha384.prototype.init = function () {
-  this._ah = 0xcbbb9d5d
-  this._bh = 0x629a292a
-  this._ch = 0x9159015a
-  this._dh = 0x152fecd8
-  this._eh = 0x67332667
-  this._fh = 0x8eb44a87
-  this._gh = 0xdb0c2e0d
-  this._hh = 0x47b5481d
+// Returns all complete UTF-8 characters in a Buffer. If the Buffer ended on a
+// partial character, the character's bytes are buffered until the required
+// number of bytes are available.
+function utf8Text(buf, i) {
+  var total = utf8CheckIncomplete(this, buf, i);
+  if (!this.lastNeed) return buf.toString('utf8', i);
+  this.lastTotal = total;
+  var end = buf.length - (total - this.lastNeed);
+  buf.copy(this.lastChar, 0, end);
+  return buf.toString('utf8', i, end);
+}
 
-  this._al = 0xc1059ed8
-  this._bl = 0x367cd507
-  this._cl = 0x3070dd17
-  this._dl = 0xf70e5939
-  this._el = 0xffc00b31
-  this._fl = 0x68581511
-  this._gl = 0x64f98fa7
-  this._hl = 0xbefa4fa4
+// For UTF-8, a replacement character for each buffered byte of a (partial)
+// character needs to be added to the output.
+function utf8End(buf) {
+  var r = buf && buf.length ? this.write(buf) : '';
+  if (this.lastNeed) return r + '\ufffd'.repeat(this.lastTotal - this.lastNeed);
+  return r;
+}
 
-  return this
+// UTF-16LE typically needs two bytes per character, but even if we have an even
+// number of bytes available, we need to check if we end on a leading/high
+// surrogate. In that case, we need to wait for the next two bytes in order to
+// decode the last character properly.
+function utf16Text(buf, i) {
+  if ((buf.length - i) % 2 === 0) {
+    var r = buf.toString('utf16le', i);
+    if (r) {
+      var c = r.charCodeAt(r.length - 1);
+      if (c >= 0xD800 && c <= 0xDBFF) {
+        this.lastNeed = 2;
+        this.lastTotal = 4;
+        this.lastChar[0] = buf[buf.length - 2];
+        this.lastChar[1] = buf[buf.length - 1];
+        return r.slice(0, -1);
+      }
+    }
+    return r;
+  }
+  this.lastNeed = 1;
+  this.lastTotal = 2;
+  this.lastChar[0] = buf[buf.length - 1];
+  return buf.toString('utf16le', i, buf.length - 1);
+}
+
+// For UTF-16LE we do not explicitly append special replacement characters if we
+// end on a partial character, we simply let v8 handle that.
+function utf16End(buf) {
+  var r = buf && buf.length ? this.write(buf) : '';
+  if (this.lastNeed) {
+    var end = this.lastTotal - this.lastNeed;
+    return r + this.lastChar.toString('utf16le', 0, end);
+  }
+  return r;
 }
 
-Sha384.prototype._hash = function () {
-  var H = new Buffer(48)
-
-  function writeInt64BE (h, l, offset) {
-    H.writeInt32BE(h, offset)
-    H.writeInt32BE(l, offset + 4)
+function base64Text(buf, i) {
+  var n = (buf.length - i) % 3;
+  if (n === 0) return buf.toString('base64', i);
+  this.lastNeed = 3 - n;
+  this.lastTotal = 3;
+  if (n === 1) {
+    this.lastChar[0] = buf[buf.length - 1];
+  } else {
+    this.lastChar[0] = buf[buf.length - 2];
+    this.lastChar[1] = buf[buf.length - 1];
   }
+  return buf.toString('base64', i, buf.length - n);
+}
 
-  writeInt64BE(this._ah, this._al, 0)
-  writeInt64BE(this._bh, this._bl, 8)
-  writeInt64BE(this._ch, this._cl, 16)
-  writeInt64BE(this._dh, this._dl, 24)
-  writeInt64BE(this._eh, this._el, 32)
-  writeInt64BE(this._fh, this._fl, 40)
+function base64End(buf) {
+  var r = buf && buf.length ? this.write(buf) : '';
+  if (this.lastNeed) return r + this.lastChar.toString('base64', 0, 3 - this.lastNeed);
+  return r;
+}
 
-  return H
+// Pass bytes on through for single-byte encodings (e.g. ascii, latin1, hex)
+function simpleWrite(buf) {
+  return buf.toString(this.encoding);
 }
 
-module.exports = Sha384
+function simpleEnd(buf) {
+  return buf && buf.length ? this.write(buf) : '';
+}
+},{"safe-buffer":40}],51:[function(require,module,exports){
+(function (global){
 
-}).call(this,require("buffer").Buffer)
-},{"./hash":79,"./sha512":86,"buffer":5,"inherits":63}],86:[function(require,module,exports){
-(function (Buffer){
-var inherits = require('inherits')
-var Hash = require('./hash')
+/**
+ * Module exports.
+ */
 
-var K = [
-  0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd,
-  0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc,
-  0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019,
-  0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118,
-  0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe,
-  0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2,
-  0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1,
-  0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694,
-  0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3,
-  0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65,
-  0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483,
-  0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5,
-  0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210,
-  0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4,
-  0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725,
-  0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70,
-  0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926,
-  0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df,
-  0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8,
-  0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b,
-  0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001,
-  0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30,
-  0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910,
-  0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8,
-  0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53,
-  0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8,
-  0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb,
-  0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3,
-  0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60,
-  0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec,
-  0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9,
-  0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b,
-  0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207,
-  0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178,
-  0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6,
-  0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b,
-  0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493,
-  0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c,
-  0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a,
-  0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817
-]
+module.exports = deprecate;
 
-var W = new Array(160)
+/**
+ * Mark that a method should not be used.
+ * Returns a modified function which warns once by default.
+ *
+ * If `localStorage.noDeprecation = true` is set, then it is a no-op.
+ *
+ * If `localStorage.throwDeprecation = true` is set, then deprecated functions
+ * will throw an Error when invoked.
+ *
+ * If `localStorage.traceDeprecation = true` is set, then deprecated functions
+ * will invoke `console.trace()` instead of `console.error()`.
+ *
+ * @param {Function} fn - the function to deprecate
+ * @param {String} msg - the string to print to the console when `fn` is invoked
+ * @returns {Function} a new "deprecated" version of `fn`
+ * @api public
+ */
 
-function Sha512 () {
-  this.init()
-  this._w = W
+function deprecate (fn, msg) {
+  if (config('noDeprecation')) {
+    return fn;
+  }
 
-  Hash.call(this, 128, 112)
+  var warned = false;
+  function deprecated() {
+    if (!warned) {
+      if (config('throwDeprecation')) {
+        throw new Error(msg);
+      } else if (config('traceDeprecation')) {
+        console.trace(msg);
+      } else {
+        console.warn(msg);
+      }
+      warned = true;
+    }
+    return fn.apply(this, arguments);
+  }
+
+  return deprecated;
 }
 
-inherits(Sha512, Hash)
+/**
+ * Checks `localStorage` for boolean values for the given `name`.
+ *
+ * @param {String} name
+ * @returns {Boolean}
+ * @api private
+ */
 
-Sha512.prototype.init = function () {
-  this._ah = 0x6a09e667
-  this._bh = 0xbb67ae85
-  this._ch = 0x3c6ef372
-  this._dh = 0xa54ff53a
-  this._eh = 0x510e527f
-  this._fh = 0x9b05688c
-  this._gh = 0x1f83d9ab
-  this._hh = 0x5be0cd19
+function config (name) {
+  // accessing global.localStorage can trigger a DOMException in sandboxed iframes
+  try {
+    if (!global.localStorage) return false;
+  } catch (_) {
+    return false;
+  }
+  var val = global.localStorage[name];
+  if (null == val) return false;
+  return String(val).toLowerCase() === 'true';
+}
 
-  this._al = 0xf3bcc908
-  this._bl = 0x84caa73b
-  this._cl = 0xfe94f82b
-  this._dl = 0x5f1d36f1
-  this._el = 0xade682d1
-  this._fl = 0x2b3e6c1f
-  this._gl = 0xfb41bd6b
-  this._hl = 0x137e2179
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],52:[function(require,module,exports){
+(function (Buffer){
+/***
+ * @license
+ * https://github.com/bitcoincashjs/bchaddr
+ * Copyright (c) 2018 Emilio Almansi
+ * Distributed under the MIT software license, see the accompanying
+ * file LICENSE or http://www.opensource.org/licenses/mit-license.php.
+ */
 
-  return this
-}
+var bs58check = require('bs58check')
+var cashaddr = require('cashaddrjs')
 
-function Ch (x, y, z) {
-  return z ^ (x & (y ^ z))
-}
+/**
+ * General purpose Bitcoin Cash address detection and translation.<br />
+ * Supports all major Bitcoin Cash address formats.<br />
+ * Currently:
+ * <ul>
+ *    <li> Legacy format </li>
+ *    <li> Bitpay format </li>
+ *    <li> Cashaddr format </li>
+ * </ul>
+ * @module bchaddr
+ */
 
-function maj (x, y, z) {
-  return (x & y) | (z & (x | y))
-}
+/**
+ * @static
+ * Supported Bitcoin Cash address formats.
+ */
+var Format = {}
+Format.Legacy = 'legacy'
+Format.Bitpay = 'bitpay'
+Format.Cashaddr = 'cashaddr'
 
-function sigma0 (x, xl) {
-  return (x >>> 28 | xl << 4) ^ (xl >>> 2 | x << 30) ^ (xl >>> 7 | x << 25)
-}
+/**
+ * @static
+ * Supported networks.
+ */
+var Network = {}
+Network.Mainnet = 'mainnet'
+Network.Testnet = 'testnet'
 
-function sigma1 (x, xl) {
-  return (x >>> 14 | xl << 18) ^ (x >>> 18 | xl << 14) ^ (xl >>> 9 | x << 23)
-}
+/**
+ * @static
+ * Supported address types.
+ */
+var Type = {}
+Type.P2PKH = 'p2pkh'
+Type.P2SH = 'p2sh'
 
-function Gamma0 (x, xl) {
-  return (x >>> 1 | xl << 31) ^ (x >>> 8 | xl << 24) ^ (x >>> 7)
+/**
+ * Detects what is the given address' format.
+ * @static
+ * @param {string} address - A valid Bitcoin Cash address in any format.
+ * @return {string}
+ * @throws {InvalidAddressError}
+ */
+function detectAddressFormat (address) {
+  return decodeAddress(address).format
 }
 
-function Gamma0l (x, xl) {
-  return (x >>> 1 | xl << 31) ^ (x >>> 8 | xl << 24) ^ (x >>> 7 | xl << 25)
+/**
+ * Detects what is the given address' network.
+ * @static
+ * @param {string} address - A valid Bitcoin Cash address in any format.
+ * @return {string}
+ * @throws {InvalidAddressError}
+ */
+function detectAddressNetwork (address) {
+  return decodeAddress(address).network
 }
 
-function Gamma1 (x, xl) {
-  return (x >>> 19 | xl << 13) ^ (xl >>> 29 | x << 3) ^ (x >>> 6)
+/**
+ * Detects what is the given address' type.
+ * @static
+ * @param {string} address - A valid Bitcoin Cash address in any format.
+ * @return {string}
+ * @throws {InvalidAddressError}
+ */
+function detectAddressType (address) {
+  return decodeAddress(address).type
 }
 
-function Gamma1l (x, xl) {
-  return (x >>> 19 | xl << 13) ^ (xl >>> 29 | x << 3) ^ (x >>> 6 | xl << 26)
+/**
+ * Translates the given address into legacy format.
+ * @static
+ * @param {string} address - A valid Bitcoin Cash address in any format.
+ * @return {string}
+ * @throws {InvalidAddressError}
+ */
+function toLegacyAddress (address) {
+  var decoded = decodeAddress(address)
+  if (decoded.format === Format.Legacy) {
+    return address
+  }
+  return encodeAsLegacy(decoded)
 }
 
-function getCarry (a, b) {
-  return (a >>> 0) < (b >>> 0) ? 1 : 0
+/**
+ * Translates the given address into bitpay format.
+ * @static
+ * @param {string} address - A valid Bitcoin Cash address in any format.
+ * @return {string}
+ * @throws {InvalidAddressError}
+ */
+function toBitpayAddress (address) {
+  var decoded = decodeAddress(address)
+  if (decoded.format === Format.Bitpay) {
+    return address
+  }
+  return encodeAsBitpay(decoded)
 }
 
-Sha512.prototype._update = function (M) {
-  var W = this._w
-
-  var ah = this._ah | 0
-  var bh = this._bh | 0
-  var ch = this._ch | 0
-  var dh = this._dh | 0
-  var eh = this._eh | 0
-  var fh = this._fh | 0
-  var gh = this._gh | 0
-  var hh = this._hh | 0
+/**
+ * Translates the given address into cashaddr format.
+ * @static
+ * @param {string} address - A valid Bitcoin Cash address in any format.
+ * @return {string}
+ * @throws {InvalidAddressError}
+ */
+function toCashAddress (address) {
+  var decoded = decodeAddress(address)
+  return encodeAsCashaddr(decoded)
+}
 
-  var al = this._al | 0
-  var bl = this._bl | 0
-  var cl = this._cl | 0
-  var dl = this._dl | 0
-  var el = this._el | 0
-  var fl = this._fl | 0
-  var gl = this._gl | 0
-  var hl = this._hl | 0
+/**
+ * Version byte table for base58 formats.
+ * @private
+ */
+var VERSION_BYTE = {}
+VERSION_BYTE[Format.Legacy] = {}
+VERSION_BYTE[Format.Legacy][Network.Mainnet] = {}
+VERSION_BYTE[Format.Legacy][Network.Mainnet][Type.P2PKH] = 0
+VERSION_BYTE[Format.Legacy][Network.Mainnet][Type.P2SH] = 5
+VERSION_BYTE[Format.Legacy][Network.Testnet] = {}
+VERSION_BYTE[Format.Legacy][Network.Testnet][Type.P2PKH] = 111
+VERSION_BYTE[Format.Legacy][Network.Testnet][Type.P2SH] = 196
+VERSION_BYTE[Format.Bitpay] = {}
+VERSION_BYTE[Format.Bitpay][Network.Mainnet] = {}
+VERSION_BYTE[Format.Bitpay][Network.Mainnet][Type.P2PKH] = 28
+VERSION_BYTE[Format.Bitpay][Network.Mainnet][Type.P2SH] = 40
+VERSION_BYTE[Format.Bitpay][Network.Testnet] = {}
+VERSION_BYTE[Format.Bitpay][Network.Testnet][Type.P2PKH] = 111
+VERSION_BYTE[Format.Bitpay][Network.Testnet][Type.P2SH] = 196
 
-  for (var i = 0; i < 32; i += 2) {
-    W[i] = M.readInt32BE(i * 4)
-    W[i + 1] = M.readInt32BE(i * 4 + 4)
+/**
+ * Decodes the given address into its constituting hash, format, network and type.
+ * @private
+ * @param {string} address - A valid Bitcoin Cash address in any format.
+ * @return {object}
+ * @throws {InvalidAddressError}
+ */
+function decodeAddress (address) {
+  try {
+    return decodeBase58Address(address)
+  } catch (error) {
   }
-  for (; i < 160; i += 2) {
-    var xh = W[i - 15 * 2]
-    var xl = W[i - 15 * 2 + 1]
-    var gamma0 = Gamma0(xh, xl)
-    var gamma0l = Gamma0l(xl, xh)
-
-    xh = W[i - 2 * 2]
-    xl = W[i - 2 * 2 + 1]
-    var gamma1 = Gamma1(xh, xl)
-    var gamma1l = Gamma1l(xl, xh)
-
-    // W[i] = gamma0 + W[i - 7] + gamma1 + W[i - 16]
-    var Wi7h = W[i - 7 * 2]
-    var Wi7l = W[i - 7 * 2 + 1]
-
-    var Wi16h = W[i - 16 * 2]
-    var Wi16l = W[i - 16 * 2 + 1]
-
-    var Wil = (gamma0l + Wi7l) | 0
-    var Wih = (gamma0 + Wi7h + getCarry(Wil, gamma0l)) | 0
-    Wil = (Wil + gamma1l) | 0
-    Wih = (Wih + gamma1 + getCarry(Wil, gamma1l)) | 0
-    Wil = (Wil + Wi16l) | 0
-    Wih = (Wih + Wi16h + getCarry(Wil, Wi16l)) | 0
-
-    W[i] = Wih
-    W[i + 1] = Wil
+  try {
+    return decodeCashAddress(address)
+  } catch (error) {
   }
+  throw new InvalidAddressError()
+}
 
-  for (var j = 0; j < 160; j += 2) {
-    Wih = W[j]
-    Wil = W[j + 1]
-
-    var majh = maj(ah, bh, ch)
-    var majl = maj(al, bl, cl)
-
-    var sigma0h = sigma0(ah, al)
-    var sigma0l = sigma0(al, ah)
-    var sigma1h = sigma1(eh, el)
-    var sigma1l = sigma1(el, eh)
-
-    // t1 = h + sigma1 + ch + K[j] + W[j]
-    var Kih = K[j]
-    var Kil = K[j + 1]
+/**
+ * Attempts to decode the given address assuming it is a base58 address.
+ * @private
+ * @param {string} address - A valid Bitcoin Cash address in any format.
+ * @return {object}
+ * @throws {InvalidAddressError}
+ */
+function decodeBase58Address (address) {
+  try {
+    var payload = bs58check.decode(address)
+    var versionByte = payload[0]
+    var hash = Array.prototype.slice.call(payload, 1)
+    switch (versionByte) {
+      case VERSION_BYTE[Format.Legacy][Network.Mainnet][Type.P2PKH]:
+        return {
+          hash: hash,
+          format: Format.Legacy,
+          network: Network.Mainnet,
+          type: Type.P2PKH
+        }
+      case VERSION_BYTE[Format.Legacy][Network.Mainnet][Type.P2SH]:
+        return {
+          hash: hash,
+          format: Format.Legacy,
+          network: Network.Mainnet,
+          type: Type.P2SH
+        }
+      case VERSION_BYTE[Format.Legacy][Network.Testnet][Type.P2PKH]:
+        return {
+          hash: hash,
+          format: Format.Legacy,
+          network: Network.Testnet,
+          type: Type.P2PKH
+        }
+      case VERSION_BYTE[Format.Legacy][Network.Testnet][Type.P2SH]:
+        return {
+          hash: hash,
+          format: Format.Legacy,
+          network: Network.Testnet,
+          type: Type.P2SH
+        }
+      case VERSION_BYTE[Format.Bitpay][Network.Mainnet][Type.P2PKH]:
+        return {
+          hash: hash,
+          format: Format.Bitpay,
+          network: Network.Mainnet,
+          type: Type.P2PKH
+        }
+      case VERSION_BYTE[Format.Bitpay][Network.Mainnet][Type.P2SH]:
+        return {
+          hash: hash,
+          format: Format.Bitpay,
+          network: Network.Mainnet,
+          type: Type.P2SH
+        }
+    }
+  } catch (error) {
+  }
+  throw new InvalidAddressError()
+}
 
-    var chh = Ch(eh, fh, gh)
-    var chl = Ch(el, fl, gl)
+/**
+ * Attempts to decode the given address assuming it is a cashaddr address.
+ * @private
+ * @param {string} address - A valid Bitcoin Cash address in any format.
+ * @return {object}
+ * @throws {InvalidAddressError}
+ */
+function decodeCashAddress (address) {
+  if (address.indexOf(':') !== -1) {
+    try {
+      return decodeCashAddressWithPrefix(address)
+    } catch (error) {
+    }
+  } else {
+    var prefixes = ['bitcoincash', 'bchtest', 'regtest']
+    for (var i = 0; i < prefixes.length; ++i) {
+      try {
+        var prefix = prefixes[i]
+        return decodeCashAddressWithPrefix(prefix + ':' + address)
+      } catch (error) {
+      }
+    }
+  }
+  throw new InvalidAddressError()
+}
 
-    var t1l = (hl + sigma1l) | 0
-    var t1h = (hh + sigma1h + getCarry(t1l, hl)) | 0
-    t1l = (t1l + chl) | 0
-    t1h = (t1h + chh + getCarry(t1l, chl)) | 0
-    t1l = (t1l + Kil) | 0
-    t1h = (t1h + Kih + getCarry(t1l, Kil)) | 0
-    t1l = (t1l + Wil) | 0
-    t1h = (t1h + Wih + getCarry(t1l, Wil)) | 0
+/**
+ * Attempts to decode the given address assuming it is a cashaddr address with explicit prefix.
+ * @private
+ * @param {string} address - A valid Bitcoin Cash address in any format.
+ * @return {object}
+ * @throws {InvalidAddressError}
+ */
+function decodeCashAddressWithPrefix (address) {
+  try {
+    var decoded = cashaddr.decode(address)
+    var hash = Array.prototype.slice.call(decoded.hash, 0)
+    var type = decoded.type === 'P2PKH' ? Type.P2PKH : Type.P2SH
+    switch (decoded.prefix) {
+      case 'bitcoincash':
+        return {
+          hash: hash,
+          format: Format.Cashaddr,
+          network: Network.Mainnet,
+          type: type
+        }
+      case 'bchtest':
+      case 'regtest':
+        return {
+          hash: hash,
+          format: Format.Cashaddr,
+          network: Network.Testnet,
+          type: type
+        }
+    }
+  } catch (error) {
+  }
+  throw new InvalidAddressError()
+}
 
-    // t2 = sigma0 + maj
-    var t2l = (sigma0l + majl) | 0
-    var t2h = (sigma0h + majh + getCarry(t2l, sigma0l)) | 0
+/**
+ * Encodes the given decoded address into legacy format.
+ * @private
+ * @param {object} decoded
+ * @returns {string}
+ */
+function encodeAsLegacy (decoded) {
+  var versionByte = VERSION_BYTE[Format.Legacy][decoded.network][decoded.type]
+  var buffer = Buffer.alloc(1 + decoded.hash.length)
+  buffer[0] = versionByte
+  buffer.set(decoded.hash, 1)
+  return bs58check.encode(buffer)
+}
 
-    hh = gh
-    hl = gl
-    gh = fh
-    gl = fl
-    fh = eh
-    fl = el
-    el = (dl + t1l) | 0
-    eh = (dh + t1h + getCarry(el, dl)) | 0
-    dh = ch
-    dl = cl
-    ch = bh
-    cl = bl
-    bh = ah
-    bl = al
-    al = (t1l + t2l) | 0
-    ah = (t1h + t2h + getCarry(al, t1l)) | 0
-  }
+/**
+ * Encodes the given decoded address into bitpay format.
+ * @private
+ * @param {object} decoded
+ * @returns {string}
+ */
+function encodeAsBitpay (decoded) {
+  var versionByte = VERSION_BYTE[Format.Bitpay][decoded.network][decoded.type]
+  var buffer = Buffer.alloc(1 + decoded.hash.length)
+  buffer[0] = versionByte
+  buffer.set(decoded.hash, 1)
+  return bs58check.encode(buffer)
+}
 
-  this._al = (this._al + al) | 0
-  this._bl = (this._bl + bl) | 0
-  this._cl = (this._cl + cl) | 0
-  this._dl = (this._dl + dl) | 0
-  this._el = (this._el + el) | 0
-  this._fl = (this._fl + fl) | 0
-  this._gl = (this._gl + gl) | 0
-  this._hl = (this._hl + hl) | 0
+/**
+ * Encodes the given decoded address into cashaddr format.
+ * @private
+ * @param {object} decoded
+ * @returns {string}
+ */
+function encodeAsCashaddr (decoded) {
+  var prefix = decoded.network === Network.Mainnet ? 'bitcoincash' : 'bchtest'
+  var type = decoded.type === Type.P2PKH ? 'P2PKH' : 'P2SH'
+  var hash = Uint8Array.from(decoded.hash)
+  return cashaddr.encode(prefix, type, hash)
+}
 
-  this._ah = (this._ah + ah + getCarry(this._al, al)) | 0
-  this._bh = (this._bh + bh + getCarry(this._bl, bl)) | 0
-  this._ch = (this._ch + ch + getCarry(this._cl, cl)) | 0
-  this._dh = (this._dh + dh + getCarry(this._dl, dl)) | 0
-  this._eh = (this._eh + eh + getCarry(this._el, el)) | 0
-  this._fh = (this._fh + fh + getCarry(this._fl, fl)) | 0
-  this._gh = (this._gh + gh + getCarry(this._gl, gl)) | 0
-  this._hh = (this._hh + hh + getCarry(this._hl, hl)) | 0
+/**
+ * Returns a boolean indicating whether the address is in legacy format.
+ * @static
+ * @param {string} address - A valid Bitcoin Cash address in any format.
+ * @returns {boolean}
+ * @throws {InvalidAddressError}
+ */
+function isLegacyAddress (address) {
+  return detectAddressFormat(address) === Format.Legacy
 }
 
-Sha512.prototype._hash = function () {
-  var H = new Buffer(64)
+/**
+ * Returns a boolean indicating whether the address is in bitpay format.
+ * @static
+ * @param {string} address - A valid Bitcoin Cash address in any format.
+ * @returns {boolean}
+ * @throws {InvalidAddressError}
+ */
+function isBitpayAddress (address) {
+  return detectAddressFormat(address) === Format.Bitpay
+}
 
-  function writeInt64BE (h, l, offset) {
-    H.writeInt32BE(h, offset)
-    H.writeInt32BE(l, offset + 4)
-  }
+/**
+ * Returns a boolean indicating whether the address is in cashaddr format.
+ * @static
+ * @param {string} address - A valid Bitcoin Cash address in any format.
+ * @returns {boolean}
+ * @throws {InvalidAddressError}
+ */
+function isCashAddress (address) {
+  return detectAddressFormat(address) === Format.Cashaddr
+}
 
-  writeInt64BE(this._ah, this._al, 0)
-  writeInt64BE(this._bh, this._bl, 8)
-  writeInt64BE(this._ch, this._cl, 16)
-  writeInt64BE(this._dh, this._dl, 24)
-  writeInt64BE(this._eh, this._el, 32)
-  writeInt64BE(this._fh, this._fl, 40)
-  writeInt64BE(this._gh, this._gl, 48)
-  writeInt64BE(this._hh, this._hl, 56)
+/**
+ * Returns a boolean indicating whether the address is a mainnet address.
+ * @static
+ * @param {string} address - A valid Bitcoin Cash address in any format.
+ * @returns {boolean}
+ * @throws {InvalidAddressError}
+ */
+function isMainnetAddress (address) {
+  return detectAddressNetwork(address) === Network.Mainnet
+}
 
-  return H
+/**
+ * Returns a boolean indicating whether the address is a testnet address.
+ * @static
+ * @param {string} address - A valid Bitcoin Cash address in any format.
+ * @returns {boolean}
+ * @throws {InvalidAddressError}
+ */
+function isTestnetAddress (address) {
+  return detectAddressNetwork(address) === Network.Testnet
 }
 
-module.exports = Sha512
+/**
+ * Returns a boolean indicating whether the address is a p2pkh address.
+ * @static
+ * @param {string} address - A valid Bitcoin Cash address in any format.
+ * @returns {boolean}
+ * @throws {InvalidAddressError}
+ */
+function isP2PKHAddress (address) {
+  return detectAddressType(address) === Type.P2PKH
+}
 
-}).call(this,require("buffer").Buffer)
-},{"./hash":79,"buffer":5,"inherits":63}],87:[function(require,module,exports){
-var isHexPrefixed = require('is-hex-prefixed');
+/**
+ * Returns a boolean indicating whether the address is a p2sh address.
+ * @static
+ * @param {string} address - A valid Bitcoin Cash address in any format.
+ * @returns {boolean}
+ * @throws {InvalidAddressError}
+ */
+function isP2SHAddress (address) {
+  return detectAddressType(address) === Type.P2SH
+}
 
 /**
- * Removes '0x' from a given `String` is present
- * @param {String} str the string value
- * @return {String|Optional} a string by pass if necessary
+ * Error thrown when the address given as input is not a valid Bitcoin Cash address.
+ * @constructor
+ * InvalidAddressError
  */
-module.exports = function stripHexPrefix(str) {
-  if (typeof str !== 'string') {
-    return str;
-  }
+function InvalidAddressError () {
+  var error = new Error()
+  this.name = error.name = 'InvalidAddressError'
+  this.message = error.message = 'Received an invalid Bitcoin Cash address as input.'
+  this.stack = error.stack
+}
 
-  return isHexPrefixed(str) ? str.slice(2) : str;
+InvalidAddressError.prototype = Object.create(Error.prototype)
+
+module.exports = {
+  Format: Format,
+  Network: Network,
+  Type: Type,
+  detectAddressFormat: detectAddressFormat,
+  detectAddressNetwork: detectAddressNetwork,
+  detectAddressType: detectAddressType,
+  toLegacyAddress: toLegacyAddress,
+  toBitpayAddress: toBitpayAddress,
+  toCashAddress: toCashAddress,
+  isLegacyAddress: isLegacyAddress,
+  isBitpayAddress: isBitpayAddress,
+  isCashAddress: isCashAddress,
+  isMainnetAddress: isMainnetAddress,
+  isTestnetAddress: isTestnetAddress,
+  isP2PKHAddress: isP2PKHAddress,
+  isP2SHAddress: isP2SHAddress,
+  InvalidAddressError: InvalidAddressError
 }
 
-},{"is-hex-prefixed":64}]},{},[31])(31)
+}).call(this,require("buffer").Buffer)
+},{"bs58check":7,"buffer":8,"cashaddrjs":10}]},{},[52])(52)
 });</script>
-        <script>function convertRippleAdrr(address) {
-        return window.basex('rpshnaf39wBUDNEGHJKLM4PQRST7VWXYZ2bcdeCg65jkm8oFqi1tuvAxyz').encode(
-           window.basex('123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz').decode(address)
-        )
-      }
-
-function convertRipplePriv(priv)   {
-        return window.basex('123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz').decode(priv).toString("hex").slice(2,66)
-}   
-      
-</script>
         <script>// Select components from sjcl to suit the crypto operations bip39 requires.
 
 //// base.js
@@ -100359,6 +101974,2058 @@ WORDLISTS["italian"] = [
 "viziare", "voce", "voga", "volatile", "volere", "volpe", "voragine", "vulcano", "zampogna", "zanna",
 "zappato", "zattera", "zavorra", "zefiro", "zelante", "zelo", "zenzero", "zerbino", "zibetto", "zinco",
 "zircone", "zitto", "zolla", "zotico", "zucchero", "zufolo", "zulu", "zuppa"]
+</script>
+        <script>WORDLISTS = typeof WORDLISTS == "undefined" ? {} : WORDLISTS;
+WORDLISTS["korean"] = [
+  "가격",
+  "가끔",
+  "가난",
+  "가능",
+  "가득",
+  "가르침",
+  "가뭄",
+  "가방",
+  "가상",
+  "가슴",
+  "가운데",
+  "가을",
+  "가이드",
+  "가입",
+  "가장",
+  "가정",
+  "가족",
+  "가죽",
+  "각오",
+  "각자",
+  "간격",
+  "간부",
+  "간섭",
+  "간장",
+  "간접",
+  "간판",
+  "갈등",
+  "갈비",
+  "갈색",
+  "갈증",
+  "감각",
+  "감기",
+  "감소",
+  "감수성",
+  "감자",
+  "감정",
+  "갑자기",
+  "강남",
+  "강당",
+  "강도",
+  "강력히",
+  "강변",
+  "강북",
+  "강사",
+  "강수량",
+  "강아지",
+  "강원도",
+  "강의",
+  "강제",
+  "강조",
+  "같이",
+  "개구리",
+  "개나리",
+  "개방",
+  "개별",
+  "개선",
+  "개성",
+  "개인",
+  "객관적",
+  "거실",
+  "거액",
+  "거울",
+  "거짓",
+  "거품",
+  "걱정",
+  "건강",
+  "건물",
+  "건설",
+  "건조",
+  "건축",
+  "걸음",
+  "검사",
+  "검토",
+  "게시판",
+  "게임",
+  "겨울",
+  "견해",
+  "결과",
+  "결국",
+  "결론",
+  "결석",
+  "결승",
+  "결심",
+  "결정",
+  "결혼",
+  "경계",
+  "경고",
+  "경기",
+  "경력",
+  "경복궁",
+  "경비",
+  "경상도",
+  "경영",
+  "경우",
+  "경쟁",
+  "경제",
+  "경주",
+  "경찰",
+  "경치",
+  "경향",
+  "경험",
+  "계곡",
+  "계단",
+  "계란",
+  "계산",
+  "계속",
+  "계약",
+  "계절",
+  "계층",
+  "계획",
+  "고객",
+  "고구려",
+  "고궁",
+  "고급",
+  "고등학생",
+  "고무신",
+  "고민",
+  "고양이",
+  "고장",
+  "고전",
+  "고집",
+  "고춧가루",
+  "고통",
+  "고향",
+  "곡식",
+  "골목",
+  "골짜기",
+  "골프",
+  "공간",
+  "공개",
+  "공격",
+  "공군",
+  "공급",
+  "공기",
+  "공동",
+  "공무원",
+  "공부",
+  "공사",
+  "공식",
+  "공업",
+  "공연",
+  "공원",
+  "공장",
+  "공짜",
+  "공책",
+  "공통",
+  "공포",
+  "공항",
+  "공휴일",
+  "과목",
+  "과일",
+  "과장",
+  "과정",
+  "과학",
+  "관객",
+  "관계",
+  "관광",
+  "관념",
+  "관람",
+  "관련",
+  "관리",
+  "관습",
+  "관심",
+  "관점",
+  "관찰",
+  "광경",
+  "광고",
+  "광장",
+  "광주",
+  "괴로움",
+  "굉장히",
+  "교과서",
+  "교문",
+  "교복",
+  "교실",
+  "교양",
+  "교육",
+  "교장",
+  "교직",
+  "교통",
+  "교환",
+  "교훈",
+  "구경",
+  "구름",
+  "구멍",
+  "구별",
+  "구분",
+  "구석",
+  "구성",
+  "구속",
+  "구역",
+  "구입",
+  "구청",
+  "구체적",
+  "국가",
+  "국기",
+  "국내",
+  "국립",
+  "국물",
+  "국민",
+  "국수",
+  "국어",
+  "국왕",
+  "국적",
+  "국제",
+  "국회",
+  "군대",
+  "군사",
+  "군인",
+  "궁극적",
+  "권리",
+  "권위",
+  "권투",
+  "귀국",
+  "귀신",
+  "규정",
+  "규칙",
+  "균형",
+  "그날",
+  "그냥",
+  "그늘",
+  "그러나",
+  "그룹",
+  "그릇",
+  "그림",
+  "그제서야",
+  "그토록",
+  "극복",
+  "극히",
+  "근거",
+  "근교",
+  "근래",
+  "근로",
+  "근무",
+  "근본",
+  "근원",
+  "근육",
+  "근처",
+  "글씨",
+  "글자",
+  "금강산",
+  "금고",
+  "금년",
+  "금메달",
+  "금액",
+  "금연",
+  "금요일",
+  "금지",
+  "긍정적",
+  "기간",
+  "기관",
+  "기념",
+  "기능",
+  "기독교",
+  "기둥",
+  "기록",
+  "기름",
+  "기법",
+  "기본",
+  "기분",
+  "기쁨",
+  "기숙사",
+  "기술",
+  "기억",
+  "기업",
+  "기온",
+  "기운",
+  "기원",
+  "기적",
+  "기준",
+  "기침",
+  "기혼",
+  "기획",
+  "긴급",
+  "긴장",
+  "길이",
+  "김밥",
+  "김치",
+  "김포공항",
+  "깍두기",
+  "깜빡",
+  "깨달음",
+  "깨소금",
+  "껍질",
+  "꼭대기",
+  "꽃잎",
+  "나들이",
+  "나란히",
+  "나머지",
+  "나물",
+  "나침반",
+  "나흘",
+  "낙엽",
+  "난방",
+  "날개",
+  "날씨",
+  "날짜",
+  "남녀",
+  "남대문",
+  "남매",
+  "남산",
+  "남자",
+  "남편",
+  "남학생",
+  "낭비",
+  "낱말",
+  "내년",
+  "내용",
+  "내일",
+  "냄비",
+  "냄새",
+  "냇물",
+  "냉동",
+  "냉면",
+  "냉방",
+  "냉장고",
+  "넥타이",
+  "넷째",
+  "노동",
+  "노란색",
+  "노력",
+  "노인",
+  "녹음",
+  "녹차",
+  "녹화",
+  "논리",
+  "논문",
+  "논쟁",
+  "놀이",
+  "농구",
+  "농담",
+  "농민",
+  "농부",
+  "농업",
+  "농장",
+  "농촌",
+  "높이",
+  "눈동자",
+  "눈물",
+  "눈썹",
+  "뉴욕",
+  "느낌",
+  "늑대",
+  "능동적",
+  "능력",
+  "다방",
+  "다양성",
+  "다음",
+  "다이어트",
+  "다행",
+  "단계",
+  "단골",
+  "단독",
+  "단맛",
+  "단순",
+  "단어",
+  "단위",
+  "단점",
+  "단체",
+  "단추",
+  "단편",
+  "단풍",
+  "달걀",
+  "달러",
+  "달력",
+  "달리",
+  "닭고기",
+  "담당",
+  "담배",
+  "담요",
+  "담임",
+  "답변",
+  "답장",
+  "당근",
+  "당분간",
+  "당연히",
+  "당장",
+  "대규모",
+  "대낮",
+  "대단히",
+  "대답",
+  "대도시",
+  "대략",
+  "대량",
+  "대륙",
+  "대문",
+  "대부분",
+  "대신",
+  "대응",
+  "대장",
+  "대전",
+  "대접",
+  "대중",
+  "대책",
+  "대출",
+  "대충",
+  "대통령",
+  "대학",
+  "대한민국",
+  "대합실",
+  "대형",
+  "덩어리",
+  "데이트",
+  "도대체",
+  "도덕",
+  "도둑",
+  "도망",
+  "도서관",
+  "도심",
+  "도움",
+  "도입",
+  "도자기",
+  "도저히",
+  "도전",
+  "도중",
+  "도착",
+  "독감",
+  "독립",
+  "독서",
+  "독일",
+  "독창적",
+  "동화책",
+  "뒷모습",
+  "뒷산",
+  "딸아이",
+  "마누라",
+  "마늘",
+  "마당",
+  "마라톤",
+  "마련",
+  "마무리",
+  "마사지",
+  "마약",
+  "마요네즈",
+  "마을",
+  "마음",
+  "마이크",
+  "마중",
+  "마지막",
+  "마찬가지",
+  "마찰",
+  "마흔",
+  "막걸리",
+  "막내",
+  "막상",
+  "만남",
+  "만두",
+  "만세",
+  "만약",
+  "만일",
+  "만점",
+  "만족",
+  "만화",
+  "많이",
+  "말기",
+  "말씀",
+  "말투",
+  "맘대로",
+  "망원경",
+  "매년",
+  "매달",
+  "매력",
+  "매번",
+  "매스컴",
+  "매일",
+  "매장",
+  "맥주",
+  "먹이",
+  "먼저",
+  "먼지",
+  "멀리",
+  "메일",
+  "며느리",
+  "며칠",
+  "면담",
+  "멸치",
+  "명단",
+  "명령",
+  "명예",
+  "명의",
+  "명절",
+  "명칭",
+  "명함",
+  "모금",
+  "모니터",
+  "모델",
+  "모든",
+  "모범",
+  "모습",
+  "모양",
+  "모임",
+  "모조리",
+  "모집",
+  "모퉁이",
+  "목걸이",
+  "목록",
+  "목사",
+  "목소리",
+  "목숨",
+  "목적",
+  "목표",
+  "몰래",
+  "몸매",
+  "몸무게",
+  "몸살",
+  "몸속",
+  "몸짓",
+  "몸통",
+  "몹시",
+  "무관심",
+  "무궁화",
+  "무더위",
+  "무덤",
+  "무릎",
+  "무슨",
+  "무엇",
+  "무역",
+  "무용",
+  "무조건",
+  "무지개",
+  "무척",
+  "문구",
+  "문득",
+  "문법",
+  "문서",
+  "문제",
+  "문학",
+  "문화",
+  "물가",
+  "물건",
+  "물결",
+  "물고기",
+  "물론",
+  "물리학",
+  "물음",
+  "물질",
+  "물체",
+  "미국",
+  "미디어",
+  "미사일",
+  "미술",
+  "미역",
+  "미용실",
+  "미움",
+  "미인",
+  "미팅",
+  "미혼",
+  "민간",
+  "민족",
+  "민주",
+  "믿음",
+  "밀가루",
+  "밀리미터",
+  "밑바닥",
+  "바가지",
+  "바구니",
+  "바나나",
+  "바늘",
+  "바닥",
+  "바닷가",
+  "바람",
+  "바이러스",
+  "바탕",
+  "박물관",
+  "박사",
+  "박수",
+  "반대",
+  "반드시",
+  "반말",
+  "반발",
+  "반성",
+  "반응",
+  "반장",
+  "반죽",
+  "반지",
+  "반찬",
+  "받침",
+  "발가락",
+  "발걸음",
+  "발견",
+  "발달",
+  "발레",
+  "발목",
+  "발바닥",
+  "발생",
+  "발음",
+  "발자국",
+  "발전",
+  "발톱",
+  "발표",
+  "밤하늘",
+  "밥그릇",
+  "밥맛",
+  "밥상",
+  "밥솥",
+  "방금",
+  "방면",
+  "방문",
+  "방바닥",
+  "방법",
+  "방송",
+  "방식",
+  "방안",
+  "방울",
+  "방지",
+  "방학",
+  "방해",
+  "방향",
+  "배경",
+  "배꼽",
+  "배달",
+  "배드민턴",
+  "백두산",
+  "백색",
+  "백성",
+  "백인",
+  "백제",
+  "백화점",
+  "버릇",
+  "버섯",
+  "버튼",
+  "번개",
+  "번역",
+  "번지",
+  "번호",
+  "벌금",
+  "벌레",
+  "벌써",
+  "범위",
+  "범인",
+  "범죄",
+  "법률",
+  "법원",
+  "법적",
+  "법칙",
+  "베이징",
+  "벨트",
+  "변경",
+  "변동",
+  "변명",
+  "변신",
+  "변호사",
+  "변화",
+  "별도",
+  "별명",
+  "별일",
+  "병실",
+  "병아리",
+  "병원",
+  "보관",
+  "보너스",
+  "보라색",
+  "보람",
+  "보름",
+  "보상",
+  "보안",
+  "보자기",
+  "보장",
+  "보전",
+  "보존",
+  "보통",
+  "보편적",
+  "보험",
+  "복도",
+  "복사",
+  "복숭아",
+  "복습",
+  "볶음",
+  "본격적",
+  "본래",
+  "본부",
+  "본사",
+  "본성",
+  "본인",
+  "본질",
+  "볼펜",
+  "봉사",
+  "봉지",
+  "봉투",
+  "부근",
+  "부끄러움",
+  "부담",
+  "부동산",
+  "부문",
+  "부분",
+  "부산",
+  "부상",
+  "부엌",
+  "부인",
+  "부작용",
+  "부장",
+  "부정",
+  "부족",
+  "부지런히",
+  "부친",
+  "부탁",
+  "부품",
+  "부회장",
+  "북부",
+  "북한",
+  "분노",
+  "분량",
+  "분리",
+  "분명",
+  "분석",
+  "분야",
+  "분위기",
+  "분필",
+  "분홍색",
+  "불고기",
+  "불과",
+  "불교",
+  "불꽃",
+  "불만",
+  "불법",
+  "불빛",
+  "불안",
+  "불이익",
+  "불행",
+  "브랜드",
+  "비극",
+  "비난",
+  "비닐",
+  "비둘기",
+  "비디오",
+  "비로소",
+  "비만",
+  "비명",
+  "비밀",
+  "비바람",
+  "비빔밥",
+  "비상",
+  "비용",
+  "비율",
+  "비중",
+  "비타민",
+  "비판",
+  "빌딩",
+  "빗물",
+  "빗방울",
+  "빗줄기",
+  "빛깔",
+  "빨간색",
+  "빨래",
+  "빨리",
+  "사건",
+  "사계절",
+  "사나이",
+  "사냥",
+  "사람",
+  "사랑",
+  "사립",
+  "사모님",
+  "사물",
+  "사방",
+  "사상",
+  "사생활",
+  "사설",
+  "사슴",
+  "사실",
+  "사업",
+  "사용",
+  "사월",
+  "사장",
+  "사전",
+  "사진",
+  "사촌",
+  "사춘기",
+  "사탕",
+  "사투리",
+  "사흘",
+  "산길",
+  "산부인과",
+  "산업",
+  "산책",
+  "살림",
+  "살인",
+  "살짝",
+  "삼계탕",
+  "삼국",
+  "삼십",
+  "삼월",
+  "삼촌",
+  "상관",
+  "상금",
+  "상대",
+  "상류",
+  "상반기",
+  "상상",
+  "상식",
+  "상업",
+  "상인",
+  "상자",
+  "상점",
+  "상처",
+  "상추",
+  "상태",
+  "상표",
+  "상품",
+  "상황",
+  "새벽",
+  "색깔",
+  "색연필",
+  "생각",
+  "생명",
+  "생물",
+  "생방송",
+  "생산",
+  "생선",
+  "생신",
+  "생일",
+  "생활",
+  "서랍",
+  "서른",
+  "서명",
+  "서민",
+  "서비스",
+  "서양",
+  "서울",
+  "서적",
+  "서점",
+  "서쪽",
+  "서클",
+  "석사",
+  "석유",
+  "선거",
+  "선물",
+  "선배",
+  "선생",
+  "선수",
+  "선원",
+  "선장",
+  "선전",
+  "선택",
+  "선풍기",
+  "설거지",
+  "설날",
+  "설렁탕",
+  "설명",
+  "설문",
+  "설사",
+  "설악산",
+  "설치",
+  "설탕",
+  "섭씨",
+  "성공",
+  "성당",
+  "성명",
+  "성별",
+  "성인",
+  "성장",
+  "성적",
+  "성질",
+  "성함",
+  "세금",
+  "세미나",
+  "세상",
+  "세월",
+  "세종대왕",
+  "세탁",
+  "센터",
+  "센티미터",
+  "셋째",
+  "소규모",
+  "소극적",
+  "소금",
+  "소나기",
+  "소년",
+  "소득",
+  "소망",
+  "소문",
+  "소설",
+  "소속",
+  "소아과",
+  "소용",
+  "소원",
+  "소음",
+  "소중히",
+  "소지품",
+  "소질",
+  "소풍",
+  "소형",
+  "속담",
+  "속도",
+  "속옷",
+  "손가락",
+  "손길",
+  "손녀",
+  "손님",
+  "손등",
+  "손목",
+  "손뼉",
+  "손실",
+  "손질",
+  "손톱",
+  "손해",
+  "솔직히",
+  "솜씨",
+  "송아지",
+  "송이",
+  "송편",
+  "쇠고기",
+  "쇼핑",
+  "수건",
+  "수년",
+  "수단",
+  "수돗물",
+  "수동적",
+  "수면",
+  "수명",
+  "수박",
+  "수상",
+  "수석",
+  "수술",
+  "수시로",
+  "수업",
+  "수염",
+  "수영",
+  "수입",
+  "수준",
+  "수집",
+  "수출",
+  "수컷",
+  "수필",
+  "수학",
+  "수험생",
+  "수화기",
+  "숙녀",
+  "숙소",
+  "숙제",
+  "순간",
+  "순서",
+  "순수",
+  "순식간",
+  "순위",
+  "숟가락",
+  "술병",
+  "술집",
+  "숫자",
+  "스님",
+  "스물",
+  "스스로",
+  "스승",
+  "스웨터",
+  "스위치",
+  "스케이트",
+  "스튜디오",
+  "스트레스",
+  "스포츠",
+  "슬쩍",
+  "슬픔",
+  "습관",
+  "습기",
+  "승객",
+  "승리",
+  "승부",
+  "승용차",
+  "승진",
+  "시각",
+  "시간",
+  "시골",
+  "시금치",
+  "시나리오",
+  "시댁",
+  "시리즈",
+  "시멘트",
+  "시민",
+  "시부모",
+  "시선",
+  "시설",
+  "시스템",
+  "시아버지",
+  "시어머니",
+  "시월",
+  "시인",
+  "시일",
+  "시작",
+  "시장",
+  "시절",
+  "시점",
+  "시중",
+  "시즌",
+  "시집",
+  "시청",
+  "시합",
+  "시험",
+  "식구",
+  "식기",
+  "식당",
+  "식량",
+  "식료품",
+  "식물",
+  "식빵",
+  "식사",
+  "식생활",
+  "식초",
+  "식탁",
+  "식품",
+  "신고",
+  "신규",
+  "신념",
+  "신문",
+  "신발",
+  "신비",
+  "신사",
+  "신세",
+  "신용",
+  "신제품",
+  "신청",
+  "신체",
+  "신화",
+  "실감",
+  "실내",
+  "실력",
+  "실례",
+  "실망",
+  "실수",
+  "실습",
+  "실시",
+  "실장",
+  "실정",
+  "실질적",
+  "실천",
+  "실체",
+  "실컷",
+  "실태",
+  "실패",
+  "실험",
+  "실현",
+  "심리",
+  "심부름",
+  "심사",
+  "심장",
+  "심정",
+  "심판",
+  "쌍둥이",
+  "씨름",
+  "씨앗",
+  "아가씨",
+  "아나운서",
+  "아드님",
+  "아들",
+  "아쉬움",
+  "아스팔트",
+  "아시아",
+  "아울러",
+  "아저씨",
+  "아줌마",
+  "아직",
+  "아침",
+  "아파트",
+  "아프리카",
+  "아픔",
+  "아홉",
+  "아흔",
+  "악기",
+  "악몽",
+  "악수",
+  "안개",
+  "안경",
+  "안과",
+  "안내",
+  "안녕",
+  "안동",
+  "안방",
+  "안부",
+  "안주",
+  "알루미늄",
+  "알코올",
+  "암시",
+  "암컷",
+  "압력",
+  "앞날",
+  "앞문",
+  "애인",
+  "애정",
+  "액수",
+  "앨범",
+  "야간",
+  "야단",
+  "야옹",
+  "약간",
+  "약국",
+  "약속",
+  "약수",
+  "약점",
+  "약품",
+  "약혼녀",
+  "양념",
+  "양력",
+  "양말",
+  "양배추",
+  "양주",
+  "양파",
+  "어둠",
+  "어려움",
+  "어른",
+  "어젯밤",
+  "어쨌든",
+  "어쩌다가",
+  "어쩐지",
+  "언니",
+  "언덕",
+  "언론",
+  "언어",
+  "얼굴",
+  "얼른",
+  "얼음",
+  "얼핏",
+  "엄마",
+  "업무",
+  "업종",
+  "업체",
+  "엉덩이",
+  "엉망",
+  "엉터리",
+  "엊그제",
+  "에너지",
+  "에어컨",
+  "엔진",
+  "여건",
+  "여고생",
+  "여관",
+  "여군",
+  "여권",
+  "여대생",
+  "여덟",
+  "여동생",
+  "여든",
+  "여론",
+  "여름",
+  "여섯",
+  "여성",
+  "여왕",
+  "여인",
+  "여전히",
+  "여직원",
+  "여학생",
+  "여행",
+  "역사",
+  "역시",
+  "역할",
+  "연결",
+  "연구",
+  "연극",
+  "연기",
+  "연락",
+  "연설",
+  "연세",
+  "연속",
+  "연습",
+  "연애",
+  "연예인",
+  "연인",
+  "연장",
+  "연주",
+  "연출",
+  "연필",
+  "연합",
+  "연휴",
+  "열기",
+  "열매",
+  "열쇠",
+  "열심히",
+  "열정",
+  "열차",
+  "열흘",
+  "염려",
+  "엽서",
+  "영국",
+  "영남",
+  "영상",
+  "영양",
+  "영역",
+  "영웅",
+  "영원히",
+  "영하",
+  "영향",
+  "영혼",
+  "영화",
+  "옆구리",
+  "옆방",
+  "옆집",
+  "예감",
+  "예금",
+  "예방",
+  "예산",
+  "예상",
+  "예선",
+  "예술",
+  "예습",
+  "예식장",
+  "예약",
+  "예전",
+  "예절",
+  "예정",
+  "예컨대",
+  "옛날",
+  "오늘",
+  "오락",
+  "오랫동안",
+  "오렌지",
+  "오로지",
+  "오른발",
+  "오븐",
+  "오십",
+  "오염",
+  "오월",
+  "오전",
+  "오직",
+  "오징어",
+  "오페라",
+  "오피스텔",
+  "오히려",
+  "옥상",
+  "옥수수",
+  "온갖",
+  "온라인",
+  "온몸",
+  "온종일",
+  "온통",
+  "올가을",
+  "올림픽",
+  "올해",
+  "옷차림",
+  "와이셔츠",
+  "와인",
+  "완성",
+  "완전",
+  "왕비",
+  "왕자",
+  "왜냐하면",
+  "왠지",
+  "외갓집",
+  "외국",
+  "외로움",
+  "외삼촌",
+  "외출",
+  "외침",
+  "외할머니",
+  "왼발",
+  "왼손",
+  "왼쪽",
+  "요금",
+  "요일",
+  "요즘",
+  "요청",
+  "용기",
+  "용서",
+  "용어",
+  "우산",
+  "우선",
+  "우승",
+  "우연히",
+  "우정",
+  "우체국",
+  "우편",
+  "운동",
+  "운명",
+  "운반",
+  "운전",
+  "운행",
+  "울산",
+  "울음",
+  "움직임",
+  "웃어른",
+  "웃음",
+  "워낙",
+  "원고",
+  "원래",
+  "원서",
+  "원숭이",
+  "원인",
+  "원장",
+  "원피스",
+  "월급",
+  "월드컵",
+  "월세",
+  "월요일",
+  "웨이터",
+  "위반",
+  "위법",
+  "위성",
+  "위원",
+  "위험",
+  "위협",
+  "윗사람",
+  "유난히",
+  "유럽",
+  "유명",
+  "유물",
+  "유산",
+  "유적",
+  "유치원",
+  "유학",
+  "유행",
+  "유형",
+  "육군",
+  "육상",
+  "육십",
+  "육체",
+  "은행",
+  "음력",
+  "음료",
+  "음반",
+  "음성",
+  "음식",
+  "음악",
+  "음주",
+  "의견",
+  "의논",
+  "의문",
+  "의복",
+  "의식",
+  "의심",
+  "의외로",
+  "의욕",
+  "의원",
+  "의학",
+  "이것",
+  "이곳",
+  "이념",
+  "이놈",
+  "이달",
+  "이대로",
+  "이동",
+  "이렇게",
+  "이력서",
+  "이론적",
+  "이름",
+  "이민",
+  "이발소",
+  "이별",
+  "이불",
+  "이빨",
+  "이상",
+  "이성",
+  "이슬",
+  "이야기",
+  "이용",
+  "이웃",
+  "이월",
+  "이윽고",
+  "이익",
+  "이전",
+  "이중",
+  "이튿날",
+  "이틀",
+  "이혼",
+  "인간",
+  "인격",
+  "인공",
+  "인구",
+  "인근",
+  "인기",
+  "인도",
+  "인류",
+  "인물",
+  "인생",
+  "인쇄",
+  "인연",
+  "인원",
+  "인재",
+  "인종",
+  "인천",
+  "인체",
+  "인터넷",
+  "인하",
+  "인형",
+  "일곱",
+  "일기",
+  "일단",
+  "일대",
+  "일등",
+  "일반",
+  "일본",
+  "일부",
+  "일상",
+  "일생",
+  "일손",
+  "일요일",
+  "일월",
+  "일정",
+  "일종",
+  "일주일",
+  "일찍",
+  "일체",
+  "일치",
+  "일행",
+  "일회용",
+  "임금",
+  "임무",
+  "입대",
+  "입력",
+  "입맛",
+  "입사",
+  "입술",
+  "입시",
+  "입원",
+  "입장",
+  "입학",
+  "자가용",
+  "자격",
+  "자극",
+  "자동",
+  "자랑",
+  "자부심",
+  "자식",
+  "자신",
+  "자연",
+  "자원",
+  "자율",
+  "자전거",
+  "자정",
+  "자존심",
+  "자판",
+  "작가",
+  "작년",
+  "작성",
+  "작업",
+  "작용",
+  "작은딸",
+  "작품",
+  "잔디",
+  "잔뜩",
+  "잔치",
+  "잘못",
+  "잠깐",
+  "잠수함",
+  "잠시",
+  "잠옷",
+  "잠자리",
+  "잡지",
+  "장관",
+  "장군",
+  "장기간",
+  "장래",
+  "장례",
+  "장르",
+  "장마",
+  "장면",
+  "장모",
+  "장미",
+  "장비",
+  "장사",
+  "장소",
+  "장식",
+  "장애인",
+  "장인",
+  "장점",
+  "장차",
+  "장학금",
+  "재능",
+  "재빨리",
+  "재산",
+  "재생",
+  "재작년",
+  "재정",
+  "재채기",
+  "재판",
+  "재학",
+  "재활용",
+  "저것",
+  "저고리",
+  "저곳",
+  "저녁",
+  "저런",
+  "저렇게",
+  "저번",
+  "저울",
+  "저절로",
+  "저축",
+  "적극",
+  "적당히",
+  "적성",
+  "적용",
+  "적응",
+  "전개",
+  "전공",
+  "전기",
+  "전달",
+  "전라도",
+  "전망",
+  "전문",
+  "전반",
+  "전부",
+  "전세",
+  "전시",
+  "전용",
+  "전자",
+  "전쟁",
+  "전주",
+  "전철",
+  "전체",
+  "전통",
+  "전혀",
+  "전후",
+  "절대",
+  "절망",
+  "절반",
+  "절약",
+  "절차",
+  "점검",
+  "점수",
+  "점심",
+  "점원",
+  "점점",
+  "점차",
+  "접근",
+  "접시",
+  "접촉",
+  "젓가락",
+  "정거장",
+  "정도",
+  "정류장",
+  "정리",
+  "정말",
+  "정면",
+  "정문",
+  "정반대",
+  "정보",
+  "정부",
+  "정비",
+  "정상",
+  "정성",
+  "정오",
+  "정원",
+  "정장",
+  "정지",
+  "정치",
+  "정확히",
+  "제공",
+  "제과점",
+  "제대로",
+  "제목",
+  "제발",
+  "제법",
+  "제삿날",
+  "제안",
+  "제일",
+  "제작",
+  "제주도",
+  "제출",
+  "제품",
+  "제한",
+  "조각",
+  "조건",
+  "조금",
+  "조깅",
+  "조명",
+  "조미료",
+  "조상",
+  "조선",
+  "조용히",
+  "조절",
+  "조정",
+  "조직",
+  "존댓말",
+  "존재",
+  "졸업",
+  "졸음",
+  "종교",
+  "종로",
+  "종류",
+  "종소리",
+  "종업원",
+  "종종",
+  "종합",
+  "좌석",
+  "죄인",
+  "주관적",
+  "주름",
+  "주말",
+  "주머니",
+  "주먹",
+  "주문",
+  "주민",
+  "주방",
+  "주변",
+  "주식",
+  "주인",
+  "주일",
+  "주장",
+  "주전자",
+  "주택",
+  "준비",
+  "줄거리",
+  "줄기",
+  "줄무늬",
+  "중간",
+  "중계방송",
+  "중국",
+  "중년",
+  "중단",
+  "중독",
+  "중반",
+  "중부",
+  "중세",
+  "중소기업",
+  "중순",
+  "중앙",
+  "중요",
+  "중학교",
+  "즉석",
+  "즉시",
+  "즐거움",
+  "증가",
+  "증거",
+  "증권",
+  "증상",
+  "증세",
+  "지각",
+  "지갑",
+  "지경",
+  "지극히",
+  "지금",
+  "지급",
+  "지능",
+  "지름길",
+  "지리산",
+  "지방",
+  "지붕",
+  "지식",
+  "지역",
+  "지우개",
+  "지원",
+  "지적",
+  "지점",
+  "지진",
+  "지출",
+  "직선",
+  "직업",
+  "직원",
+  "직장",
+  "진급",
+  "진동",
+  "진로",
+  "진료",
+  "진리",
+  "진짜",
+  "진찰",
+  "진출",
+  "진통",
+  "진행",
+  "질문",
+  "질병",
+  "질서",
+  "짐작",
+  "집단",
+  "집안",
+  "집중",
+  "짜증",
+  "찌꺼기",
+  "차남",
+  "차라리",
+  "차량",
+  "차림",
+  "차별",
+  "차선",
+  "차츰",
+  "착각",
+  "찬물",
+  "찬성",
+  "참가",
+  "참기름",
+  "참새",
+  "참석",
+  "참여",
+  "참외",
+  "참조",
+  "찻잔",
+  "창가",
+  "창고",
+  "창구",
+  "창문",
+  "창밖",
+  "창작",
+  "창조",
+  "채널",
+  "채점",
+  "책가방",
+  "책방",
+  "책상",
+  "책임",
+  "챔피언",
+  "처벌",
+  "처음",
+  "천국",
+  "천둥",
+  "천장",
+  "천재",
+  "천천히",
+  "철도",
+  "철저히",
+  "철학",
+  "첫날",
+  "첫째",
+  "청년",
+  "청바지",
+  "청소",
+  "청춘",
+  "체계",
+  "체력",
+  "체온",
+  "체육",
+  "체중",
+  "체험",
+  "초등학생",
+  "초반",
+  "초밥",
+  "초상화",
+  "초순",
+  "초여름",
+  "초원",
+  "초저녁",
+  "초점",
+  "초청",
+  "초콜릿",
+  "촛불",
+  "총각",
+  "총리",
+  "총장",
+  "촬영",
+  "최근",
+  "최상",
+  "최선",
+  "최신",
+  "최악",
+  "최종",
+  "추석",
+  "추억",
+  "추진",
+  "추천",
+  "추측",
+  "축구",
+  "축소",
+  "축제",
+  "축하",
+  "출근",
+  "출발",
+  "출산",
+  "출신",
+  "출연",
+  "출입",
+  "출장",
+  "출판",
+  "충격",
+  "충고",
+  "충돌",
+  "충분히",
+  "충청도",
+  "취업",
+  "취직",
+  "취향",
+  "치약",
+  "친구",
+  "친척",
+  "칠십",
+  "칠월",
+  "칠판",
+  "침대",
+  "침묵",
+  "침실",
+  "칫솔",
+  "칭찬",
+  "카메라",
+  "카운터",
+  "칼국수",
+  "캐릭터",
+  "캠퍼스",
+  "캠페인",
+  "커튼",
+  "컨디션",
+  "컬러",
+  "컴퓨터",
+  "코끼리",
+  "코미디",
+  "콘서트",
+  "콜라",
+  "콤플렉스",
+  "콩나물",
+  "쾌감",
+  "쿠데타",
+  "크림",
+  "큰길",
+  "큰딸",
+  "큰소리",
+  "큰아들",
+  "큰어머니",
+  "큰일",
+  "큰절",
+  "클래식",
+  "클럽",
+  "킬로",
+  "타입",
+  "타자기",
+  "탁구",
+  "탁자",
+  "탄생",
+  "태권도",
+  "태양",
+  "태풍",
+  "택시",
+  "탤런트",
+  "터널",
+  "터미널",
+  "테니스",
+  "테스트",
+  "테이블",
+  "텔레비전",
+  "토론",
+  "토마토",
+  "토요일",
+  "통계",
+  "통과",
+  "통로",
+  "통신",
+  "통역",
+  "통일",
+  "통장",
+  "통제",
+  "통증",
+  "통합",
+  "통화",
+  "퇴근",
+  "퇴원",
+  "퇴직금",
+  "튀김",
+  "트럭",
+  "특급",
+  "특별",
+  "특성",
+  "특수",
+  "특징",
+  "특히",
+  "튼튼히",
+  "티셔츠",
+  "파란색",
+  "파일",
+  "파출소",
+  "판결",
+  "판단",
+  "판매",
+  "판사",
+  "팔십",
+  "팔월",
+  "팝송",
+  "패션",
+  "팩스",
+  "팩시밀리",
+  "팬티",
+  "퍼센트",
+  "페인트",
+  "편견",
+  "편의",
+  "편지",
+  "편히",
+  "평가",
+  "평균",
+  "평생",
+  "평소",
+  "평양",
+  "평일",
+  "평화",
+  "포스터",
+  "포인트",
+  "포장",
+  "포함",
+  "표면",
+  "표정",
+  "표준",
+  "표현",
+  "품목",
+  "품질",
+  "풍경",
+  "풍속",
+  "풍습",
+  "프랑스",
+  "프린터",
+  "플라스틱",
+  "피곤",
+  "피망",
+  "피아노",
+  "필름",
+  "필수",
+  "필요",
+  "필자",
+  "필통",
+  "핑계",
+  "하느님",
+  "하늘",
+  "하드웨어",
+  "하룻밤",
+  "하반기",
+  "하숙집",
+  "하순",
+  "하여튼",
+  "하지만",
+  "하천",
+  "하품",
+  "하필",
+  "학과",
+  "학교",
+  "학급",
+  "학기",
+  "학년",
+  "학력",
+  "학번",
+  "학부모",
+  "학비",
+  "학생",
+  "학술",
+  "학습",
+  "학용품",
+  "학원",
+  "학위",
+  "학자",
+  "학점",
+  "한계",
+  "한글",
+  "한꺼번에",
+  "한낮",
+  "한눈",
+  "한동안",
+  "한때",
+  "한라산",
+  "한마디",
+  "한문",
+  "한번",
+  "한복",
+  "한식",
+  "한여름",
+  "한쪽",
+  "할머니",
+  "할아버지",
+  "할인",
+  "함께",
+  "함부로",
+  "합격",
+  "합리적",
+  "항공",
+  "항구",
+  "항상",
+  "항의",
+  "해결",
+  "해군",
+  "해답",
+  "해당",
+  "해물",
+  "해석",
+  "해설",
+  "해수욕장",
+  "해안",
+  "핵심",
+  "핸드백",
+  "햄버거",
+  "햇볕",
+  "햇살",
+  "행동",
+  "행복",
+  "행사",
+  "행운",
+  "행위",
+  "향기",
+  "향상",
+  "향수",
+  "허락",
+  "허용",
+  "헬기",
+  "현관",
+  "현금",
+  "현대",
+  "현상",
+  "현실",
+  "현장",
+  "현재",
+  "현지",
+  "혈액",
+  "협력",
+  "형부",
+  "형사",
+  "형수",
+  "형식",
+  "형제",
+  "형태",
+  "형편",
+  "혜택",
+  "호기심",
+  "호남",
+  "호랑이",
+  "호박",
+  "호텔",
+  "호흡",
+  "혹시",
+  "홀로",
+  "홈페이지",
+  "홍보",
+  "홍수",
+  "홍차",
+  "화면",
+  "화분",
+  "화살",
+  "화요일",
+  "화장",
+  "화학",
+  "확보",
+  "확인",
+  "확장",
+  "확정",
+  "환갑",
+  "환경",
+  "환영",
+  "환율",
+  "환자",
+  "활기",
+  "활동",
+  "활발히",
+  "활용",
+  "활짝",
+  "회견",
+  "회관",
+  "회복",
+  "회색",
+  "회원",
+  "회장",
+  "회전",
+  "횟수",
+  "횡단보도",
+  "효율적",
+  "후반",
+  "후춧가루",
+  "훈련",
+  "훨씬",
+  "휴식",
+  "휴일",
+  "흉내",
+  "흐름",
+  "흑백",
+  "흑인",
+  "흔적",
+  "흔히",
+  "흥미",
+  "흥분",
+  "희곡",
+  "희망",
+  "희생",
+  "흰색",
+  "힘껏"
+]
 </script>
         <script>/*
  * Copyright (c) 2013 Pavol Rusnak
@@ -100518,14 +104185,7 @@ var Mnemonic = function(language) {
     }
 
     self.normalizeString = function(str) {
-        if (typeof str.normalize == "function") {
-            return str.normalize("NFKD");
-        }
-        else {
-            // TODO decide how to handle this in the future.
-            // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/normalize
-            return str;
-        }
+        return str.normalize("NFKD");
     }
 
     function byteArrayToWordArray(data) {
@@ -102606,6 +106266,7 @@ window.Entropy = new (function() {
     var generationProcesses = [];
 
     var DOM = {};
+    DOM.privacyScreenToggle = $(".privacy-screen-toggle");
     DOM.network = $(".network");
     DOM.bip32Client = $("#bip32-client");
     DOM.phraseNetwork = $("#network-phrase");
@@ -102621,7 +106282,9 @@ window.Entropy = new (function() {
     DOM.entropyWordCount = DOM.entropyContainer.find(".word-count");
     DOM.entropyBinary = DOM.entropyContainer.find(".binary");
     DOM.entropyWordIndexes = DOM.entropyContainer.find(".word-indexes");
+    DOM.entropyChecksum = DOM.entropyContainer.find(".checksum");
     DOM.entropyMnemonicLength = DOM.entropyContainer.find(".mnemonic-length");
+    DOM.entropyWeakEntropyOverrideWarning = DOM.entropyContainer.find(".weak-entropy-override-warning");
     DOM.entropyFilterWarning = DOM.entropyContainer.find(".filter-warning");
     DOM.phrase = $(".phrase");
     DOM.passphrase = $(".passphrase");
@@ -102658,6 +106321,8 @@ window.Entropy = new (function() {
     DOM.bip49accountXprv = $("#bip49 .account-xprv");
     DOM.bip49accountXpub = $("#bip49 .account-xpub");
     DOM.bip49change = $("#bip49 .change");
+    DOM.bip84unavailable = $("#bip84 .unavailable");
+    DOM.bip84available = $("#bip84 .available");
     DOM.bip84path = $("#bip84-path");
     DOM.bip84purpose = $("#bip84 .purpose");
     DOM.bip84coin = $("#bip84 .coin");
@@ -102670,9 +106335,10 @@ window.Entropy = new (function() {
     DOM.bip141path = $("#bip141-path");
     DOM.bip141semantics = $(".bip141-semantics");
     DOM.generatedStrength = $(".generate-container .strength");
+    DOM.generatedStrengthWarning = $(".generate-container .warning");
     DOM.hardenedAddresses = $(".hardened-addresses");
-    DOM.useBitpayAddressesContainer = $(".use-bitpay-addresses-container");
-    DOM.useBitpayAddresses = $(".use-bitpay-addresses");
+    DOM.bitcoinCashAddressTypeContainer = $(".bch-addr-type-container");
+    DOM.bitcoinCashAddressType = $("[name=bch-addr-type]")
     DOM.useBip38 = $(".use-bip38");
     DOM.bip38Password = $(".bip38-password");
     DOM.addresses = $(".addresses");
@@ -102696,6 +106362,8 @@ window.Entropy = new (function() {
 
     function init() {
         // Events
+        DOM.privacyScreenToggle.on("change", privacyScreenToggled);
+        DOM.generatedStrength.on("change", generatedStrengthChanged);
         DOM.network.on("change", networkChanged);
         DOM.bip32Client.on("change", bip32ClientChanged);
         DOM.useEntropy.on("change", setEntropyVisibility);
@@ -102726,7 +106394,7 @@ window.Entropy = new (function() {
         DOM.privateKeyToggle.on("click", togglePrivateKeys);
         DOM.csvTab.on("click", updateCsv);
         DOM.languages.on("click", languageChanged);
-        DOM.useBitpayAddresses.on("change", useBitpayAddressesChange);
+        DOM.bitcoinCashAddressType.on("change", bitcoinCashAddressTypeChange);
         setQrEvents(DOM.showQrEls);
         disableForms();
         hidePending();
@@ -102737,21 +106405,25 @@ window.Entropy = new (function() {
 
     // Event handlers
 
+    function generatedStrengthChanged() {
+        var strength = parseInt(DOM.generatedStrength.val());
+        if (strength < 12) {
+            DOM.generatedStrengthWarning.removeClass("hidden");
+        }
+        else {
+            DOM.generatedStrengthWarning.addClass("hidden");
+        }
+    }
+
     function networkChanged(e) {
         clearDerivedKeys();
         clearAddressesList();
         DOM.litecoinLtubContainer.addClass("hidden");
-        DOM.useBitpayAddressesContainer.addClass("hidden");
+        DOM.bitcoinCashAddressTypeContainer.addClass("hidden");
         var networkIndex = e.target.value;
         var network = networks[networkIndex];
         network.onSelect();
-        if (network.segwitAvailable) {
-            adjustNetworkForSegwit();
-            showSegwitAvailable();
-        }
-        else {
-            showSegwitUnavailable();
-        }
+        adjustNetworkForSegwit();
         if (seed != null) {
             phraseChanged();
         }
@@ -102941,8 +106613,11 @@ window.Entropy = new (function() {
         showPending();
         // Don't show segwit if it's selected but network doesn't support it
         if (segwitSelected() && !networkHasSegwit()) {
+            showSegwitUnavailable();
+            hidePending();
             return;
         }
+        showSegwitAvailable();
         // Get the derivation path
         var derivationPath = getDerivationPath();
         var errorText = findDerivationPathErrors(derivationPath);
@@ -102993,8 +106668,7 @@ window.Entropy = new (function() {
         }, 50);
     }
 
-    function useBitpayAddressesChange() {
-        setBitcoinCashNetworkValues();
+    function bitcoinCashAddressTypeChange() {
         phraseChanged();
     }
 
@@ -103018,6 +106692,17 @@ window.Entropy = new (function() {
         $("td.privkey span").toggleClass("invisible");
     }
 
+    function privacyScreenToggled() {
+        // private-data contains elements added to DOM at runtime
+        // so catch all by adding visual privacy class to the root of the DOM
+        if (DOM.privacyScreenToggle.prop("checked")) {
+            $("body").addClass("visual-privacy");
+        }
+        else {
+            $("body").removeClass("visual-privacy");
+        }
+    }
+
     // Private methods
 
     function generateRandomPhrase() {
@@ -103049,6 +106734,37 @@ window.Entropy = new (function() {
     }
 
     function calcBip32RootKeyFromBase58(rootKeyBase58) {
+        // try parsing with various segwit network params since this extended
+        // key may be from any one of them.
+        if (networkHasSegwit()) {
+            var n = network;
+            if ("baseNetwork" in n) {
+                n = bitcoinjs.bitcoin.networks[n.baseNetwork];
+            }
+            // try parsing using base network params
+            try {
+                bip32RootKey = bitcoinjs.bitcoin.HDNode.fromBase58(rootKeyBase58, n);
+                return;
+            }
+            catch (e) {}
+            // try parsing using p2wpkh params
+            if ("p2wpkh" in n) {
+                try {
+                    bip32RootKey = bitcoinjs.bitcoin.HDNode.fromBase58(rootKeyBase58, n.p2wpkh);
+                    return;
+                }
+                catch (e) {}
+            }
+            // try parsing using p2wpkh-in-p2sh network params
+            if ("p2wpkhInP2sh" in n) {
+                try {
+                    bip32RootKey = bitcoinjs.bitcoin.HDNode.fromBase58(rootKeyBase58, n.p2wpkhInP2sh);
+                    return;
+                }
+                catch (e) {}
+            }
+        }
+        // try the network params as currently specified
         bip32RootKey = bitcoinjs.bitcoin.HDNode.fromBase58(rootKeyBase58, network);
     }
 
@@ -103122,6 +106838,37 @@ window.Entropy = new (function() {
     }
 
     function validateRootKey(rootKeyBase58) {
+        // try various segwit network params since this extended key may be from
+        // any one of them.
+        if (networkHasSegwit()) {
+            var n = network;
+            if ("baseNetwork" in n) {
+                n = bitcoinjs.bitcoin.networks[n.baseNetwork];
+            }
+            // try parsing using base network params
+            try {
+                bitcoinjs.bitcoin.HDNode.fromBase58(rootKeyBase58, n);
+                return "";
+            }
+            catch (e) {}
+            // try parsing using p2wpkh params
+            if ("p2wpkh" in n) {
+                try {
+                    bitcoinjs.bitcoin.HDNode.fromBase58(rootKeyBase58, n.p2wpkh);
+                    return "";
+                }
+                catch (e) {}
+            }
+            // try parsing using p2wpkh-in-p2sh network params
+            if ("p2wpkhInP2sh" in n) {
+                try {
+                    bitcoinjs.bitcoin.HDNode.fromBase58(rootKeyBase58, n.p2wpkhInP2sh);
+                    return "";
+                }
+                catch (e) {}
+            }
+        }
+        // try the network params as currently specified
         try {
             bitcoinjs.bitcoin.HDNode.fromBase58(rootKeyBase58, network);
         }
@@ -103383,7 +107130,7 @@ window.Entropy = new (function() {
                 var keyPair = key.keyPair;
                 var useUncompressed = useBip38;
                 if (useUncompressed) {
-                    keyPair = new bitcoinjs.bitcoin.ECPair(keyPair.d, null, { compressed: false });
+                    keyPair = new bitcoinjs.bitcoin.ECPair(keyPair.d, null, { network: network, compressed: false });
                 }
                 // get address
                 var address = keyPair.getAddress().toString();
@@ -103391,7 +107138,7 @@ window.Entropy = new (function() {
                 var hasPrivkey = !key.isNeutered();
                 var privkey = "NA";
                 if (hasPrivkey) {
-                    privkey = keyPair.toWIF(network);
+                    privkey = keyPair.toWIF();
                     // BIP38 encode private key if required
                     if (useBip38) {
                         privkey = bitcoinjsBip38.encrypt(keyPair.d.toBuffer(), false, bip38password, function(p) {
@@ -103421,6 +107168,16 @@ window.Entropy = new (function() {
                     privkey = convertRipplePriv(privkey);
                     address = convertRippleAdrr(address);
                 }
+                // Bitcoin Cash address format may vary
+                if (networks[DOM.network.val()].name == "BCH - Bitcoin Cash") {
+                    var bchAddrType = DOM.bitcoinCashAddressType.filter(":checked").val();
+                    if (bchAddrType == "cashaddr") {
+                        address = bchaddr.toCashAddress(address);
+                    }
+                    else if (bchAddrType == "bitpay") {
+                        address = bchaddr.toBitpayAddress(address);
+                    }
+                }
                 // Segwit addresses are different
                 if (isSegwit) {
                     if (!segwitAvailable) {
@@ -103760,6 +107517,17 @@ window.Entropy = new (function() {
             mnemonicLength = parseInt(mnemonicLength);
             var numberOfBits = 32 * mnemonicLength / 3;
             bits = bits.substring(0, numberOfBits);
+            // show warning for weak entropy override
+            if (mnemonicLength / 3 * 32 > entropy.binaryStr.length) {
+                DOM.entropyWeakEntropyOverrideWarning.removeClass("hidden");
+            }
+            else {
+                DOM.entropyWeakEntropyOverrideWarning.addClass("hidden");
+            }
+        }
+        else {
+            // hide warning for weak entropy override
+            DOM.entropyWeakEntropyOverrideWarning.addClass("hidden");
         }
         // Discard trailing entropy
         var bitsToUse = Math.floor(bits.length / 32) * 32;
@@ -103778,6 +107546,8 @@ window.Entropy = new (function() {
         DOM.phrase.val(phrase);
         // Show the word indexes
         showWordIndexes();
+        // Show the checksum
+        showChecksum();
     }
 
     function clearEntropyFeedback() {
@@ -103808,13 +107578,14 @@ window.Entropy = new (function() {
         var entropyTypeStr = getEntropyTypeStr(entropy);
         var wordCount = Math.floor(numberOfBits / 32) * 3;
         var bitsPerEvent = entropy.bitsPerEvent.toFixed(2);
+        var spacedBinaryStr = addSpacesEveryElevenBits(entropy.binaryStr);
         DOM.entropyFiltered.html(entropy.cleanHtml);
         DOM.entropyType.text(entropyTypeStr);
         DOM.entropyCrackTime.text(timeToCrack);
         DOM.entropyEventCount.text(entropy.base.ints.length);
         DOM.entropyBits.text(numberOfBits);
         DOM.entropyWordCount.text(wordCount);
-        DOM.entropyBinary.text(entropy.binaryStr);
+        DOM.entropyBinary.text(spacedBinaryStr);
         DOM.entropyBitsPerEvent.text(bitsPerEvent);
         // detect and warn of filtering
         var rawNoSpaces = DOM.entropy.val().replace(/\s/g, "");
@@ -103937,7 +107708,20 @@ window.Entropy = new (function() {
     }
 
     function networkHasSegwit() {
-        return networks[DOM.network.val()].segwitAvailable;
+        var n = network;
+        if ("baseNetwork" in network) {
+            n = bitcoinjs.bitcoin.networks[network.baseNetwork];
+        }
+        // check if only p2wpkh params are required
+        if (p2wpkhSelected()) {
+            return "p2wpkh" in n;
+        }
+        // check if only p2wpkh-in-p2sh params are required
+        else if (p2wpkhInP2shSelected()) {
+            return "p2wpkhInP2sh" in n;
+        }
+        // require both if it's unclear which params are required
+        return "p2wpkh" in n && "p2wpkhInP2sh" in n;
     }
 
     function bip49TabSelected() {
@@ -103961,6 +107745,8 @@ window.Entropy = new (function() {
     function showSegwitAvailable() {
         DOM.bip49unavailable.addClass("hidden");
         DOM.bip49available.removeClass("hidden");
+        DOM.bip84unavailable.addClass("hidden");
+        DOM.bip84available.removeClass("hidden");
         DOM.bip141unavailable.addClass("hidden");
         DOM.bip141available.removeClass("hidden");
     }
@@ -103968,23 +107754,12 @@ window.Entropy = new (function() {
     function showSegwitUnavailable() {
         DOM.bip49available.addClass("hidden");
         DOM.bip49unavailable.removeClass("hidden");
+        DOM.bip84available.addClass("hidden");
+        DOM.bip84unavailable.removeClass("hidden");
         DOM.bip141available.addClass("hidden");
         DOM.bip141unavailable.removeClass("hidden");
     }
 
-    function useBitpayAddresses() {
-        return !(DOM.useBitpayAddresses.prop("checked"));
-    }
-
-    function setBitcoinCashNetworkValues() {
-        if (useBitpayAddresses()) {
-            network = bitcoinjs.bitcoin.networks.bitcoin;
-        }
-        else {
-            network = bitcoinjs.bitcoin.networks.bitcoinCashBitbpay;
-        }
-    }
-
     function adjustNetworkForSegwit() {
         // If segwit is selected the xpub/xprv prefixes need to be adjusted
         // to avoid accidentally importing BIP49 xpub to BIP44 watch only
@@ -104039,6 +107814,35 @@ window.Entropy = new (function() {
         DOM.entropyWordIndexes.text(wordIndexesStr);
     }
 
+    function showChecksum() {
+        var phrase = DOM.phrase.val();
+        var words = phraseToWordArray(phrase);
+        var checksumBitlength = words.length / 3;
+        var checksum = "";
+        var binaryStr = "";
+        var language = getLanguage();
+        for (var i=words.length-1; i>=0; i--) {
+            var word = words[i];
+            var wordIndex = WORDLISTS[language].indexOf(word);
+            var wordBinary = wordIndex.toString(2);
+            while (wordBinary.length < 11) {
+                wordBinary = "0" + wordBinary;
+            }
+            var binaryStr = wordBinary + binaryStr;
+            if (binaryStr.length >= checksumBitlength) {
+                var start = binaryStr.length - checksumBitlength;
+                var end = binaryStr.length;
+                checksum = binaryStr.substring(start, end);
+                // add spaces so the last group is 11 bits, not the first
+                checksum = checksum.split("").reverse().join("")
+                checksum = addSpacesEveryElevenBits(checksum);
+                checksum = checksum.split("").reverse().join("")
+                break;
+            }
+        }
+        DOM.entropyChecksum.text(checksum);
+    }
+
     function updateCsv() {
         var tableCsv = "path,address,public key,private key\n";
         var rows = DOM.addresses.find("tr");
@@ -104059,27 +107863,97 @@ window.Entropy = new (function() {
         DOM.csv.val(tableCsv);
     }
 
+    function addSpacesEveryElevenBits(binaryStr) {
+        return binaryStr.match(/.{1,11}/g).join(" ");
+    }
+
     var networks = [
+        {
+            name: "AC - Asiacoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.asiacoin;
+                setHdCoin(51);
+            },
+        },
+        {
+            name: "ACC - Adcoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.adcoin;
+                setHdCoin(161);
+            },
+        },
+        {
+            name: "AUR - Auroracoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.auroracoin;
+                setHdCoin(85);
+            },
+        },
         {
             name: "AXE - Axe",
-            segwitAvailable: false,
             onSelect: function() {
                 network = bitcoinjs.bitcoin.networks.axe;
-                setHdCoin(0);
+                setHdCoin(4242);
+            },
+        },
+        {
+            name: "BCA - Bitcoin Atom",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.atom;
+                setHdCoin(185);
             },
         },
         {
             name: "BCH - Bitcoin Cash",
-            segwitAvailable: false,
             onSelect: function() {
-                DOM.useBitpayAddressesContainer.removeClass("hidden");
-                setBitcoinCashNetworkValues();
+                DOM.bitcoinCashAddressTypeContainer.removeClass("hidden");
                 setHdCoin(145);
             },
         },
+        {
+            name: "BEET - Beetlecoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.beetlecoin;
+                setHdCoin(800);
+            },
+        },
+        {
+            name: "BELA - Belacoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.belacoin;
+                setHdCoin(73);
+            },
+        },
+        {
+            name: "BLK - BlackCoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.blackcoin;
+                setHdCoin(10);
+            },
+        },
+        {
+            name: "BRIT - Britcoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.britcoin;
+                setHdCoin(70);
+            },
+        },
+        {
+            name: "BSD - Bitsend",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.bitsend;
+                setHdCoin(91);
+            },
+        },
+        {
+            name: "BTA - Bata",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.bata;
+                setHdCoin(89);
+            },
+        },
         {
             name: "BTC - Bitcoin",
-            segwitAvailable: true,
             onSelect: function() {
                 network = bitcoinjs.bitcoin.networks.bitcoin;
                 setHdCoin(0);
@@ -104087,31 +107961,83 @@ window.Entropy = new (function() {
         },
         {
             name: "BTC - Bitcoin Testnet",
-            segwitAvailable: true,
             onSelect: function() {
                 network = bitcoinjs.bitcoin.networks.testnet;
                 setHdCoin(1);
             },
         },
+        {
+            name: "BTCP - Bitcoin Private",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.bitcoinprivate;
+                setHdCoin(183);
+            },
+        },
+        {
+            name: "BTCZ - Bitcoinz",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.bitcoinz;
+                setHdCoin(177);
+            },
+        },
         {
             name: "BTG - Bitcoin Gold",
-            segwitAvailable: true,
             onSelect: function() {
                 network = bitcoinjs.bitcoin.networks.bgold;
-                setHdCoin(0);
+                setHdCoin(156);
+            },
+        },
+        {
+            name: "BTX - Bitcore",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.bitcore;
+                setHdCoin(160);
+            },
+        },
+        {
+            name: "CCN - Cannacoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.cannacoin;
+                setHdCoin(19);
+            },
+        },
+        {
+            name: "CDN - Canadaecoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.canadaecoin;
+                setHdCoin(34);
             },
         },
         {
             name: "CLAM - Clams",
-            segwitAvailable: false,
             onSelect: function() {
                 network = bitcoinjs.bitcoin.networks.clam;
                 setHdCoin(23);
             },
         },
+        {
+            name: "CLUB - Clubcoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.clubcoin;
+                setHdCoin(79);
+            },
+        },
+        {
+            name: "CMP - Compcoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.compcoin;
+                setHdCoin(71);
+            },
+        },
+        {
+            name: "CRAVE - Crave",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.crave;
+                setHdCoin(186);
+            },
+        },
         {
             name: "CRW - Crown",
-            segwitAvailable: false,
             onSelect: function() {
                 network = bitcoinjs.bitcoin.networks.crown;
                 setHdCoin(72);
@@ -104119,7 +108045,6 @@ window.Entropy = new (function() {
         },
         {
             name: "DASH - Dash",
-            segwitAvailable: false,
             onSelect: function() {
                 network = bitcoinjs.bitcoin.networks.dash;
                 setHdCoin(5);
@@ -104127,47 +108052,188 @@ window.Entropy = new (function() {
         },
         {
             name: "DASH - Dash Testnet",
-            segwitAvailable: false,
             onSelect: function() {
                 network = bitcoinjs.bitcoin.networks.dashtn;
                 setHdCoin(1);
             },
         },
+        {
+            name: "DFC - Defcoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.defcoin;
+                setHdCoin(1337);
+            },
+        },
+        {
+            name: "DGB - Digibyte",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.digibyte;
+                setHdCoin(20);
+            },
+        },
+        {
+            name: "DGC - Digitalcoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.digitalcoin;
+                setHdCoin(18);
+            },
+        },
+        {
+            name: "DMD - Diamond",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.diamond;
+                setHdCoin(152);
+            },
+        },
+        {
+            name: "DNR - Denarius",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.denarius;
+                setHdCoin(116);
+            },
+        },
         {
             name: "DOGE - Dogecoin",
-            segwitAvailable: false,
             onSelect: function() {
                 network = bitcoinjs.bitcoin.networks.dogecoin;
                 setHdCoin(3);
             },
         },
+        {
+            name: "ECN - Ecoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.ecoin;
+                setHdCoin(115);
+            },
+        },
+        {
+            name: "EDRC - Edrcoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.edrcoin;
+                setHdCoin(56);
+            },
+        },
+        {
+            name: "EFL - Egulden",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.egulden;
+                setHdCoin(78);
+            },
+        },
+        {
+            name: "EMC2 - Einsteinium",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.einsteinium;
+                setHdCoin(41);
+            },
+        },
+        {
+            name: "ERC - Europecoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.europecoin;
+                setHdCoin(151);
+            },
+        },
         {
             name: "ETH - Ethereum",
-            segwitAvailable: false,
             onSelect: function() {
                 network = bitcoinjs.bitcoin.networks.bitcoin;
                 setHdCoin(60);
             },
         },
+        {
+            name: "EXCL - Exclusivecoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.exclusivecoin;
+                setHdCoin(190);
+            },
+        },
         {
             name: "FJC - Fujicoin",
-            segwitAvailable: false,
             onSelect: function() {
                 network = bitcoinjs.bitcoin.networks.fujicoin;
                 setHdCoin(75);
             },
         },
+        {
+            name: "FLASH - Flashcoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.flashcoin;
+                setHdCoin(120);
+            },
+        },
+        {
+            name: "FRST - Firstcoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.firstcoin;
+                setHdCoin(167);
+            },
+        },
+        {
+            name: "FTC - Feathercoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.feathercoin;
+                setHdCoin(8);
+            },
+        },
         {
             name: "GAME - GameCredits",
-            segwitAvailable: false,
             onSelect: function() {
                 network = bitcoinjs.bitcoin.networks.game;
                 setHdCoin(101);
             },
         },
+        {
+            name: "GBX - Gobyte",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.gobyte;
+                setHdCoin(176);
+            },
+        },
+        {
+            name: "GCR - GCRCoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.gcr;
+                setHdCoin(79);
+            },
+        },
+        {
+            name: "GRC - Gridcoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.gridcoin;
+                setHdCoin(84);
+            },
+        },
+        {
+            name: "HNC - Helleniccoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.helleniccoin;
+                setHdCoin(168);
+            },
+        },
+        {
+            name: "INSN - Insane",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.insane;
+                setHdCoin(68);
+            },
+        },
+        {
+            name: "IOP - Iop",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.iop;
+                setHdCoin(66);
+            },
+        },
+        {
+            name: "IXC - Ixcoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.ixcoin;
+                setHdCoin(86);
+            },
+        },
         {
             name: "JBS - Jumbucks",
-            segwitAvailable: false,
             onSelect: function() {
                 network = bitcoinjs.bitcoin.networks.jumbucks;
                 setHdCoin(26);
@@ -104181,50 +108247,178 @@ window.Entropy = new (function() {
                 setHdCoin(141);
             },
         },
+        {
+            name: "KOBO - Kobocoin",
+            bip49available: false,
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.kobocoin;
+                setHdCoin(196);
+            },
+        },
+        {
+            name: "LBC - Library Credits",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.lbry;
+                setHdCoin(140);
+            },
+        },
+        {
+            name: "LCC - Litecoincash",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.litecoincash;
+                setHdCoin(192);
+            },
+        },
+        {
+            name: "LDCN - Landcoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.landcoin;
+                setHdCoin(63);
+            },
+        },
+        {
+            name: "LINX - Linx",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.linx;
+                setHdCoin(114);
+            },
+        },
         {
             name: "LTC - Litecoin",
-            segwitAvailable: true,
             onSelect: function() {
                 network = bitcoinjs.bitcoin.networks.litecoin;
                 setHdCoin(2);
                 DOM.litecoinLtubContainer.removeClass("hidden");
             },
         },
+        {
+            name: "LYNX - Lynx",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.lynx;
+                setHdCoin(191);
+            },
+        },
         {
             name: "MAZA - Maza",
-            segwitAvailable: false,
             onSelect: function() {
                 network = bitcoinjs.bitcoin.networks.maza;
                 setHdCoin(13);
             },
         },
+        {
+            name: "MNX - Minexcoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.minexcoin;
+                setHdCoin(182);
+            },
+        },
         {
             name: "MONA - Monacoin",
-            segwitAvailable: true,
             onSelect: function() {
                 network = bitcoinjs.bitcoin.networks.monacoin,
                 setHdCoin(22);
             },
         },
+        {
+            name: "NAV - Navcoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.navcoin;
+                setHdCoin(130);
+            },
+        },
+        {
+            name: "NEBL - Neblio",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.neblio;
+                setHdCoin(146);
+            },
+        },
+        {
+            name: "NEOS - Neoscoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.neoscoin;
+                setHdCoin(25);
+            },
+        },
+        {
+            name: "NLG - Gulden",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.gulden;
+                setHdCoin(87);
+            },
+        },
         {
             name: "NMC - Namecoin",
-            segwitAvailable: false,
             onSelect: function() {
                 network = bitcoinjs.bitcoin.networks.namecoin;
                 setHdCoin(7);
             },
         },
+        {
+            name: "NRG - Energi",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.energi;
+                setHdCoin(204);
+            },
+        },
+        {
+            name: "NRO - Neurocoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.neurocoin;
+                setHdCoin(110);
+            },
+        },
+        {
+            name: "NSR - Nushares",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.nushares;
+                setHdCoin(11);
+            },
+        },
+        {
+            name: "NYC - Newyorkc",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.newyorkc;
+                setHdCoin(179);
+            },
+        },
+        {
+            name: "NVC - Novacoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.novacoin;
+                setHdCoin(50);
+            },
+        },
+        {
+            name: "OK - Okcash",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.okcash;
+                setHdCoin(69);
+            },
+        },
+        {
+            name: "OMNI - Omnicore",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.omnicore;
+                setHdCoin(200);
+            },
+        },
         {
             name: "ONX - Onixcoin",
-            segwitAvailable: false,
             onSelect: function() {
                 network = bitcoinjs.bitcoin.networks.onixcoin;
                 setHdCoin(174);
             },
         },
+        {
+            name: "PINK - Pinkcoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.pinkcoin;
+                setHdCoin(117);
+            },
+        },
         {
             name: "PIVX - PIVX",
-            segwitAvailable: false,
             onSelect: function() {
                 network = bitcoinjs.bitcoin.networks.pivx;
                 setHdCoin(119);
@@ -104232,23 +108426,69 @@ window.Entropy = new (function() {
         },
         {
             name: "PIVX - PIVX Testnet",
-            segwitAvailable: false,
             onSelect: function() {
                 network = bitcoinjs.bitcoin.networks.pivxtestnet;
                 setHdCoin(1);
             },
         },
+        {
+            name: "POSW - POSWcoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.poswcoin;
+                setHdCoin(47);
+            },
+        },
+        {
+            name: "POT - Potcoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.potcoin;
+                setHdCoin(81);
+            },
+        },
         {
             name: "PPC - Peercoin",
-            segwitAvailable: false,
             onSelect: function() {
                 network = bitcoinjs.bitcoin.networks.peercoin;
                 setHdCoin(6);
             },
         },
+        {
+            name: "PSB - Pesobit",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.pesobit;
+                setHdCoin(62);
+            },
+        },
+        {
+            name: "PUT - Putincoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.putincoin;
+                setHdCoin(122);
+            },
+        },
+        {
+            name: "RBY - Rubycoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.rubycoin;
+                setHdCoin(16);
+            },
+        },
+        {
+            name: "RDD - Reddcoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.reddcoin;
+                setHdCoin(4);
+            },
+        },
+        {
+            name: "RVR - RevolutionVR",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.revolutionvr;
+                setHdCoin(129);
+            },
+        },
         {
             name: "SDC - ShadowCash",
-            segwitAvailable: false,
             onSelect: function() {
                 network = bitcoinjs.bitcoin.networks.shadow;
                 setHdCoin(35);
@@ -104256,7 +108496,6 @@ window.Entropy = new (function() {
         },
         {
             name: "SDC - ShadowCash Testnet",
-            segwitAvailable: false,
             onSelect: function() {
                 network = bitcoinjs.bitcoin.networks.shadowtn;
                 setHdCoin(1);
@@ -104264,7 +108503,6 @@ window.Entropy = new (function() {
         },
         {
             name: "SLM - Slimcoin",
-            segwitAvailable: false,
             onSelect: function() {
                 network = bitcoinjs.bitcoin.networks.slimcoin;
                 setHdCoin(63);
@@ -104272,23 +108510,83 @@ window.Entropy = new (function() {
         },
         {
             name: "SLM - Slimcoin Testnet",
-            segwitAvailable: false,
             onSelect: function() {
                 network = bitcoinjs.bitcoin.networks.slimcointn;
                 setHdCoin(111);
             },
         },
+        {
+            name: "SLR - Solarcoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.solarcoin;
+                setHdCoin(58);
+            },
+        },
+        {
+            name: "SMLY - Smileycoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.smileycoin;
+                setHdCoin(59);
+            },
+        },
+        {
+            name: "STRAT - Stratis",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.stratis;
+                setHdCoin(105);
+            },
+        },
+        {
+            name: "SYS - Syscoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.syscoin;
+                setHdCoin(57);
+            },
+        },
+        {
+            name: "THC - Hempcoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.hempcoin;
+                setHdCoin(113);
+            },
+        },
+        {
+            name: "TOA - Toa",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.toa;
+                setHdCoin(159);
+            },
+        },
+        {
+            name: "USC - Ultimatesecurecash",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.ultimatesecurecash;
+                setHdCoin(112);
+            },
+        },
         {
             name: "USNBT - NuBits",
-            segwitAvailable: false,
             onSelect: function() {
                 network = bitcoinjs.bitcoin.networks.nubits;
                 setHdCoin(12);
             },
         },
+        {
+            name: "UNO - Unobtanium",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.unobtanium;
+                setHdCoin(92);
+            },
+        },
+        {
+            name: "VASH - Vpncoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.vpncoin;
+                setHdCoin(33);
+            },
+        },
         {
             name: "VIA - Viacoin",
-            segwitAvailable: false,
             onSelect: function() {
                 network = bitcoinjs.bitcoin.networks.viacoin;
                 setHdCoin(14);
@@ -104296,15 +108594,41 @@ window.Entropy = new (function() {
         },
         {
             name: "VIA - Viacoin Testnet",
-            segwitAvailable: false,
             onSelect: function() {
                 network = bitcoinjs.bitcoin.networks.viacointestnet;
                 setHdCoin(1);
             },
         },
+        {
+            name: "VIVO - Vivo",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.vivo;
+                setHdCoin(166);
+            },
+        },
+        {
+            name: "VTC - Vertcoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.vertcoin;
+                setHdCoin(28);
+            },
+        },
+        {
+            name: "WC - Wincoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.wincoin;
+                setHdCoin(181);
+            },
+        },
+        {
+            name: "XBC - Bitcoinplus",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.bitcoinplus;
+                setHdCoin(65);
+            },
+        },
         {
             name: "XMY - Myriadcoin",
-            segwitAvailable: false,
             onSelect: function() {
                 network = bitcoinjs.bitcoin.networks.myriadcoin;
                 setHdCoin(90);
@@ -104312,12 +108636,67 @@ window.Entropy = new (function() {
         },
         {
             name: "XRP - Ripple",
-            segwitAvailable: false,
             onSelect: function() {
                 network = bitcoinjs.bitcoin.networks.bitcoin;
                 setHdCoin(144);
             },
-        }
+        },
+        {
+            name: "XVC - Vcash",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.vcash;
+                setHdCoin(127);
+            },
+        },
+        {
+            name: "XVG - Verge",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.verge;
+                setHdCoin(77);
+            },
+        },
+        {
+            name: "XWC - Whitecoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.whitecoin;
+                setHdCoin(155);
+            },
+        },
+        {
+            name: "XZC - Zcoin",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.zcoin;
+                setHdCoin(136);
+            },
+        },
+        {
+            name: "ZCL - Zclassic",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.zclassic;
+                setHdCoin(147);
+            },
+        },
+        {
+            name: "ZEC - Zcash",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.zcash;
+                setHdCoin(133);
+            },
+        },
+        {
+            name: "XUEZ - Xuez",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.xuez;
+                setHdCoin(225);
+            },
+        },
+        {
+            name: "ZEN - Zencash",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.zencash;
+                setHdCoin(121);
+            },
+        },
     ]
 
     var clients = [