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+
@@ -346,2695 +771,4786 @@
+
+(function (global) {
+ "use strict";
-
-
+ // Set this to always override native implementations, for testing
+ // the polyfill in browsers with partial/full ES2015 support.
+ var OVERRIDE_NATIVE_FOR_TESTING = false;
-
-
+
+
+
+
+
+
+
+// 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 name + ': ' + str;
+}
+
+
+function reduceToSingleString(output, base, braces) {
+ var numLinesEst = 0;
+ var length = output.reduce(function(prev, cur) {
+ numLinesEst++;
+ if (cur.indexOf('\n') >= 0) numLinesEst++;
+ return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1;
+ }, 0);
+
+ if (length > 60) {
+ return braces[0] +
+ (base === '' ? '' : base + '\n ') +
+ ' ' +
+ output.join(',\n ') +
+ ' ' +
+ braces[1];
+ }
+
+ return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
+}
+
+
+// NOTE: These type checking functions intentionally don't use `instanceof`
+// because it is fragile and can be easily faked with `Object.create()`.
+function isArray(ar) {
+ return Array.isArray(ar);
+}
+exports.isArray = isArray;
+
+function isBoolean(arg) {
+ return typeof arg === 'boolean';
+}
+exports.isBoolean = isBoolean;
+
+function isNull(arg) {
+ return arg === null;
+}
+exports.isNull = isNull;
+
+function isNullOrUndefined(arg) {
+ return arg == null;
+}
+exports.isNullOrUndefined = isNullOrUndefined;
+
+function isNumber(arg) {
+ return typeof arg === 'number';
+}
+exports.isNumber = isNumber;
+
+function isString(arg) {
+ return typeof arg === 'string';
+}
+exports.isString = isString;
+
+function isSymbol(arg) {
+ return typeof arg === 'symbol';
+}
+exports.isSymbol = isSymbol;
+
+function isUndefined(arg) {
+ return arg === void 0;
+}
+exports.isUndefined = isUndefined;
+
+function isRegExp(re) {
+ return isObject(re) && objectToString(re) === '[object RegExp]';
+}
+exports.isRegExp = isRegExp;
+
+function isObject(arg) {
+ return typeof arg === 'object' && arg !== null;
+}
+exports.isObject = isObject;
+
+function isDate(d) {
+ return isObject(d) && objectToString(d) === '[object Date]';
+}
+exports.isDate = isDate;
+
+function isError(e) {
+ return isObject(e) &&
+ (objectToString(e) === '[object Error]' || e instanceof Error);
+}
+exports.isError = isError;
+
+function isFunction(arg) {
+ return typeof arg === 'function';
+}
+exports.isFunction = isFunction;
+
+function isPrimitive(arg) {
+ return arg === null ||
+ typeof arg === 'boolean' ||
+ typeof arg === 'number' ||
+ typeof arg === 'string' ||
+ typeof arg === 'symbol' || // ES6 symbol
+ typeof arg === 'undefined';
+}
+exports.isPrimitive = isPrimitive;
+
+exports.isBuffer = require('./support/isBuffer');
+
+function objectToString(o) {
+ return Object.prototype.toString.call(o);
+}
+
+
+function pad(n) {
+ return n < 10 ? '0' + n.toString(10) : n.toString(10);
+}
+
+
+var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep',
+ 'Oct', 'Nov', 'Dec'];
+
+// 26 Feb 16:19:34
+function timestamp() {
+ var d = new Date();
+ var time = [pad(d.getHours()),
+ pad(d.getMinutes()),
+ pad(d.getSeconds())].join(':');
+ return [d.getDate(), months[d.getMonth()], time].join(' ');
+}
+
+
+// log is just a thin wrapper to console.log that prepends a timestamp
+exports.log = function() {
+ console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments));
+};
+
+
+/**
+ * Inherit the prototype methods from one constructor into another.
+ *
+ * The Function.prototype.inherits from lang.js rewritten as a standalone
+ * function (not on Function.prototype). NOTE: If this file is to be loaded
+ * during bootstrapping this function needs to be rewritten using some native
+ * functions as prototype setup using normal JavaScript does not work as
+ * expected during bootstrapping (see mirror.js in r114903).
+ *
+ * @param {function} ctor Constructor function which needs to inherit the
+ * prototype.
+ * @param {function} superCtor Constructor function to inherit prototype from.
+ */
+exports.inherits = require('inherits');
+
+exports._extend = function(origin, add) {
+ // Don't do anything if add isn't an object
+ if (!add || !isObject(add)) return origin;
+
+ var keys = Object.keys(add);
+ var i = keys.length;
+ while (i--) {
+ origin[keys[i]] = add[keys[i]];
+ }
+ return origin;
+};
+
+function hasOwnProperty(obj, prop) {
+ return Object.prototype.hasOwnProperty.call(obj, prop);
+}
+
+}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"./support/isBuffer":31,"_process":12,"inherits":30}],33:[function(require,module,exports){
+module.exports = {
+ base58: require('bs58'),
+ bitcoin: require('bitcoinjs-lib'),
+ ecurve: require('ecurve'),
+ BigInteger: require('bigi')
+}
+
+},{"bigi":37,"bitcoinjs-lib":50,"bs58":79,"ecurve":89}],34:[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 += ALPHABET[0]
+ // convert digits to a string
+ for (var q = digits.length - 1; q >= 0; --q) string += ALPHABET[digits[q]]
+
+ return string
+ }
+
+ function decodeUnsafe (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":98}],35:[function(require,module,exports){
+// (public) Constructor
+function BigInteger(a, b, c) {
+ if (!(this instanceof BigInteger))
+ return new BigInteger(a, b, c)
+
+ if (a != null) {
+ if ("number" == typeof a) this.fromNumber(a, b, c)
+ else if (b == null && "string" != typeof a) this.fromString(a, 256)
+ else this.fromString(a, b)
+ }
+}
+
+var proto = BigInteger.prototype
+
+// duck-typed isBigInteger
+proto.__bigi = require('../package.json').version
+BigInteger.isBigInteger = function (obj, check_ver) {
+ return obj && obj.__bigi && (!check_ver || obj.__bigi === proto.__bigi)
+}
+
+// Bits per digit
+var dbits
+
+// am: Compute w_j += (x*this_i), propagate carries,
+// c is initial carry, returns final carry.
+// c < 3*dvalue, x < 2*dvalue, this_i < dvalue
+// We need to select the fastest one that works in this environment.
+
+// am1: use a single mult and divide to get the high bits,
+// max digit bits should be 26 because
+// max internal value = 2*dvalue^2-2*dvalue (< 2^53)
+function am1(i, x, w, j, c, n) {
+ while (--n >= 0) {
+ var v = x * this[i++] + w[j] + c
+ c = Math.floor(v / 0x4000000)
+ w[j++] = v & 0x3ffffff
+ }
+ return c
+}
+// am2 avoids a big mult-and-extract completely.
+// Max digit bits should be <= 30 because we do bitwise ops
+// on values up to 2*hdvalue^2-hdvalue-1 (< 2^31)
+function am2(i, x, w, j, c, n) {
+ var xl = x & 0x7fff,
+ xh = x >> 15
+ while (--n >= 0) {
+ var l = this[i] & 0x7fff
+ var h = this[i++] >> 15
+ var m = xh * l + h * xl
+ l = xl * l + ((m & 0x7fff) << 15) + w[j] + (c & 0x3fffffff)
+ c = (l >>> 30) + (m >>> 15) + xh * h + (c >>> 30)
+ w[j++] = l & 0x3fffffff
+ }
+ return c
+}
+// Alternately, set max digit bits to 28 since some
+// browsers slow down when dealing with 32-bit numbers.
+function am3(i, x, w, j, c, n) {
+ var xl = x & 0x3fff,
+ xh = x >> 14
+ while (--n >= 0) {
+ var l = this[i] & 0x3fff
+ var h = this[i++] >> 14
+ var m = xh * l + h * xl
+ l = xl * l + ((m & 0x3fff) << 14) + w[j] + c
+ c = (l >> 28) + (m >> 14) + xh * h
+ w[j++] = l & 0xfffffff
+ }
+ return c
+}
+
+// wtf?
+BigInteger.prototype.am = am1
+dbits = 26
+
+BigInteger.prototype.DB = dbits
+BigInteger.prototype.DM = ((1 << dbits) - 1)
+var DV = BigInteger.prototype.DV = (1 << dbits)
+
+var BI_FP = 52
+BigInteger.prototype.FV = Math.pow(2, BI_FP)
+BigInteger.prototype.F1 = BI_FP - dbits
+BigInteger.prototype.F2 = 2 * dbits - BI_FP
+
+// Digit conversions
+var BI_RM = "0123456789abcdefghijklmnopqrstuvwxyz"
+var BI_RC = new Array()
+var rr, vv
+rr = "0".charCodeAt(0)
+for (vv = 0; vv <= 9; ++vv) BI_RC[rr++] = vv
+rr = "a".charCodeAt(0)
+for (vv = 10; vv < 36; ++vv) BI_RC[rr++] = vv
+rr = "A".charCodeAt(0)
+for (vv = 10; vv < 36; ++vv) BI_RC[rr++] = vv
+
+function int2char(n) {
+ return BI_RM.charAt(n)
+}
+
+function intAt(s, i) {
+ var c = BI_RC[s.charCodeAt(i)]
+ return (c == null) ? -1 : c
+}
+
+// (protected) copy this to r
+function bnpCopyTo(r) {
+ for (var i = this.t - 1; i >= 0; --i) r[i] = this[i]
+ r.t = this.t
+ r.s = this.s
+}
+
+// (protected) set from integer value x, -DV <= x < DV
+function bnpFromInt(x) {
+ this.t = 1
+ this.s = (x < 0) ? -1 : 0
+ if (x > 0) this[0] = x
+ else if (x < -1) this[0] = x + DV
+ else this.t = 0
+}
+
+// return bigint initialized to value
+function nbv(i) {
+ var r = new BigInteger()
+ r.fromInt(i)
+ return r
+}
+
+// (protected) set from string and radix
+function bnpFromString(s, b) {
+ var self = this
+
+ var k
+ if (b == 16) k = 4
+ else if (b == 8) k = 3
+ else if (b == 256) k = 8; // byte array
+ else if (b == 2) k = 1
+ else if (b == 32) k = 5
+ else if (b == 4) k = 2
+ else {
+ self.fromRadix(s, b)
+ return
+ }
+ self.t = 0
+ self.s = 0
+ var i = s.length,
+ mi = false,
+ sh = 0
+ while (--i >= 0) {
+ var x = (k == 8) ? s[i] & 0xff : intAt(s, i)
+ if (x < 0) {
+ if (s.charAt(i) == "-") mi = true
+ continue
+ }
+ mi = false
+ if (sh == 0)
+ self[self.t++] = x
+ else if (sh + k > self.DB) {
+ self[self.t - 1] |= (x & ((1 << (self.DB - sh)) - 1)) << sh
+ self[self.t++] = (x >> (self.DB - sh))
+ } else
+ self[self.t - 1] |= x << sh
+ sh += k
+ if (sh >= self.DB) sh -= self.DB
+ }
+ if (k == 8 && (s[0] & 0x80) != 0) {
+ self.s = -1
+ if (sh > 0) self[self.t - 1] |= ((1 << (self.DB - sh)) - 1) << sh
+ }
+ self.clamp()
+ if (mi) BigInteger.ZERO.subTo(self, self)
+}
+
+// (protected) clamp off excess high words
+function bnpClamp() {
+ var c = this.s & this.DM
+ while (this.t > 0 && this[this.t - 1] == c)--this.t
+}
+
+// (public) return string representation in given radix
+function bnToString(b) {
+ var self = this
+ if (self.s < 0) return "-" + self.negate()
+ .toString(b)
+ var k
+ if (b == 16) k = 4
+ else if (b == 8) k = 3
+ else if (b == 2) k = 1
+ else if (b == 32) k = 5
+ else if (b == 4) k = 2
+ else return self.toRadix(b)
+ var km = (1 << k) - 1,
+ d, m = false,
+ r = "",
+ i = self.t
+ var p = self.DB - (i * self.DB) % k
+ if (i-- > 0) {
+ if (p < self.DB && (d = self[i] >> p) > 0) {
+ m = true
+ r = int2char(d)
+ }
+ while (i >= 0) {
+ if (p < k) {
+ d = (self[i] & ((1 << p) - 1)) << (k - p)
+ d |= self[--i] >> (p += self.DB - k)
+ } else {
+ d = (self[i] >> (p -= k)) & km
+ if (p <= 0) {
+ p += self.DB
+ --i
+ }
+ }
+ if (d > 0) m = true
+ if (m) r += int2char(d)
+ }
+ }
+ return m ? r : "0"
+}
+
+// (public) -this
+function bnNegate() {
+ var r = new BigInteger()
+ BigInteger.ZERO.subTo(this, r)
+ return r
+}
+
+// (public) |this|
+function bnAbs() {
+ return (this.s < 0) ? this.negate() : this
+}
+
+// (public) return + if this > a, - if this < a, 0 if equal
+function bnCompareTo(a) {
+ var r = this.s - a.s
+ if (r != 0) return r
+ var i = this.t
+ r = i - a.t
+ if (r != 0) return (this.s < 0) ? -r : r
+ while (--i >= 0)
+ if ((r = this[i] - a[i]) != 0) return r
+ return 0
+}
+
+// returns bit length of the integer x
+function nbits(x) {
+ var r = 1,
+ t
+ if ((t = x >>> 16) != 0) {
+ x = t
+ r += 16
+ }
+ if ((t = x >> 8) != 0) {
+ x = t
+ r += 8
+ }
+ if ((t = x >> 4) != 0) {
+ x = t
+ r += 4
+ }
+ if ((t = x >> 2) != 0) {
+ x = t
+ r += 2
+ }
+ if ((t = x >> 1) != 0) {
+ x = t
+ r += 1
+ }
+ return r
+}
+
+// (public) return the number of bits in "this"
+function bnBitLength() {
+ if (this.t <= 0) return 0
+ return this.DB * (this.t - 1) + nbits(this[this.t - 1] ^ (this.s & this.DM))
+}
+
+// (public) return the number of bytes in "this"
+function bnByteLength() {
+ return this.bitLength() >> 3
+}
+
+// (protected) r = this << n*DB
+function bnpDLShiftTo(n, r) {
+ var i
+ for (i = this.t - 1; i >= 0; --i) r[i + n] = this[i]
+ for (i = n - 1; i >= 0; --i) r[i] = 0
+ r.t = this.t + n
+ r.s = this.s
+}
+
+// (protected) r = this >> n*DB
+function bnpDRShiftTo(n, r) {
+ for (var i = n; i < this.t; ++i) r[i - n] = this[i]
+ r.t = Math.max(this.t - n, 0)
+ r.s = this.s
+}
+
+// (protected) r = this << n
+function bnpLShiftTo(n, r) {
+ var self = this
+ var bs = n % self.DB
+ var cbs = self.DB - bs
+ var bm = (1 << cbs) - 1
+ var ds = Math.floor(n / self.DB),
+ c = (self.s << bs) & self.DM,
+ i
+ for (i = self.t - 1; i >= 0; --i) {
+ r[i + ds + 1] = (self[i] >> cbs) | c
+ c = (self[i] & bm) << bs
+ }
+ for (i = ds - 1; i >= 0; --i) r[i] = 0
+ r[ds] = c
+ r.t = self.t + ds + 1
+ r.s = self.s
+ r.clamp()
+}
+
+// (protected) r = this >> n
+function bnpRShiftTo(n, r) {
+ var self = this
+ r.s = self.s
+ var ds = Math.floor(n / self.DB)
+ if (ds >= self.t) {
+ r.t = 0
+ return
+ }
+ var bs = n % self.DB
+ var cbs = self.DB - bs
+ var bm = (1 << bs) - 1
+ r[0] = self[ds] >> bs
+ for (var i = ds + 1; i < self.t; ++i) {
+ r[i - ds - 1] |= (self[i] & bm) << cbs
+ r[i - ds] = self[i] >> bs
+ }
+ if (bs > 0) r[self.t - ds - 1] |= (self.s & bm) << cbs
+ r.t = self.t - ds
+ r.clamp()
+}
+
+// (protected) r = this - a
+function bnpSubTo(a, r) {
+ var self = this
+ var i = 0,
+ c = 0,
+ m = Math.min(a.t, self.t)
+ while (i < m) {
+ c += self[i] - a[i]
+ r[i++] = c & self.DM
+ c >>= self.DB
+ }
+ if (a.t < self.t) {
+ c -= a.s
+ while (i < self.t) {
+ c += self[i]
+ r[i++] = c & self.DM
+ c >>= self.DB
+ }
+ c += self.s
+ } else {
+ c += self.s
+ while (i < a.t) {
+ c -= a[i]
+ r[i++] = c & self.DM
+ c >>= self.DB
+ }
+ c -= a.s
+ }
+ r.s = (c < 0) ? -1 : 0
+ if (c < -1) r[i++] = self.DV + c
+ else if (c > 0) r[i++] = c
+ r.t = i
+ r.clamp()
+}
+
+// (protected) r = this * a, r != this,a (HAC 14.12)
+// "this" should be the larger one if appropriate.
+function bnpMultiplyTo(a, r) {
+ var x = this.abs(),
+ y = a.abs()
+ var i = x.t
+ r.t = i + y.t
+ while (--i >= 0) r[i] = 0
+ for (i = 0; i < y.t; ++i) r[i + x.t] = x.am(0, y[i], r, i, 0, x.t)
+ r.s = 0
+ r.clamp()
+ if (this.s != a.s) BigInteger.ZERO.subTo(r, r)
+}
+
+// (protected) r = this^2, r != this (HAC 14.16)
+function bnpSquareTo(r) {
+ var x = this.abs()
+ var i = r.t = 2 * x.t
+ while (--i >= 0) r[i] = 0
+ for (i = 0; i < x.t - 1; ++i) {
+ var c = x.am(i, x[i], r, 2 * i, 0, 1)
+ if ((r[i + x.t] += x.am(i + 1, 2 * x[i], r, 2 * i + 1, c, x.t - i - 1)) >= x.DV) {
+ r[i + x.t] -= x.DV
+ r[i + x.t + 1] = 1
+ }
+ }
+ if (r.t > 0) r[r.t - 1] += x.am(i, x[i], r, 2 * i, 0, 1)
+ r.s = 0
+ r.clamp()
+}
+
+// (protected) divide this by m, quotient and remainder to q, r (HAC 14.20)
+// r != q, this != m. q or r may be null.
+function bnpDivRemTo(m, q, r) {
+ var self = this
+ var pm = m.abs()
+ if (pm.t <= 0) return
+ var pt = self.abs()
+ if (pt.t < pm.t) {
+ if (q != null) q.fromInt(0)
+ if (r != null) self.copyTo(r)
+ return
+ }
+ if (r == null) r = new BigInteger()
+ var y = new BigInteger(),
+ ts = self.s,
+ ms = m.s
+ var nsh = self.DB - nbits(pm[pm.t - 1]); // normalize modulus
+ if (nsh > 0) {
+ pm.lShiftTo(nsh, y)
+ pt.lShiftTo(nsh, r)
+ } else {
+ pm.copyTo(y)
+ pt.copyTo(r)
+ }
+ var ys = y.t
+ var y0 = y[ys - 1]
+ if (y0 == 0) return
+ var yt = y0 * (1 << self.F1) + ((ys > 1) ? y[ys - 2] >> self.F2 : 0)
+ var d1 = self.FV / yt,
+ d2 = (1 << self.F1) / yt,
+ e = 1 << self.F2
+ var i = r.t,
+ j = i - ys,
+ t = (q == null) ? new BigInteger() : q
+ y.dlShiftTo(j, t)
+ if (r.compareTo(t) >= 0) {
+ r[r.t++] = 1
+ r.subTo(t, r)
+ }
+ BigInteger.ONE.dlShiftTo(ys, t)
+ t.subTo(y, y); // "negative" y so we can replace sub with am later
+ while (y.t < ys) y[y.t++] = 0
+ while (--j >= 0) {
+ // Estimate quotient digit
+ var qd = (r[--i] == y0) ? self.DM : Math.floor(r[i] * d1 + (r[i - 1] + e) * d2)
+ if ((r[i] += y.am(0, qd, r, j, 0, ys)) < qd) { // Try it out
+ y.dlShiftTo(j, t)
+ r.subTo(t, r)
+ while (r[i] < --qd) r.subTo(t, r)
+ }
+ }
+ if (q != null) {
+ r.drShiftTo(ys, q)
+ if (ts != ms) BigInteger.ZERO.subTo(q, q)
+ }
+ r.t = ys
+ r.clamp()
+ if (nsh > 0) r.rShiftTo(nsh, r); // Denormalize remainder
+ if (ts < 0) BigInteger.ZERO.subTo(r, r)
+}
+
+// (public) this mod a
+function bnMod(a) {
+ var r = new BigInteger()
+ this.abs()
+ .divRemTo(a, null, r)
+ if (this.s < 0 && r.compareTo(BigInteger.ZERO) > 0) a.subTo(r, r)
+ return r
+}
+
+// Modular reduction using "classic" algorithm
+function Classic(m) {
+ this.m = m
+}
+
+function cConvert(x) {
+ if (x.s < 0 || x.compareTo(this.m) >= 0) return x.mod(this.m)
+ else return x
+}
+
+function cRevert(x) {
+ return x
+}
+
+function cReduce(x) {
+ x.divRemTo(this.m, null, x)
+}
+
+function cMulTo(x, y, r) {
+ x.multiplyTo(y, r)
+ this.reduce(r)
+}
+
+function cSqrTo(x, r) {
+ x.squareTo(r)
+ this.reduce(r)
+}
+
+Classic.prototype.convert = cConvert
+Classic.prototype.revert = cRevert
+Classic.prototype.reduce = cReduce
+Classic.prototype.mulTo = cMulTo
+Classic.prototype.sqrTo = cSqrTo
+
+// (protected) return "-1/this % 2^DB"; useful for Mont. reduction
+// justification:
+// xy == 1 (mod m)
+// xy = 1+km
+// xy(2-xy) = (1+km)(1-km)
+// x[y(2-xy)] = 1-k^2m^2
+// x[y(2-xy)] == 1 (mod m^2)
+// if y is 1/x mod m, then y(2-xy) is 1/x mod m^2
+// should reduce x and y(2-xy) by m^2 at each step to keep size bounded.
+// JS multiply "overflows" differently from C/C++, so care is needed here.
+function bnpInvDigit() {
+ if (this.t < 1) return 0
+ var x = this[0]
+ if ((x & 1) == 0) return 0
+ var y = x & 3; // y == 1/x mod 2^2
+ y = (y * (2 - (x & 0xf) * y)) & 0xf; // y == 1/x mod 2^4
+ y = (y * (2 - (x & 0xff) * y)) & 0xff; // y == 1/x mod 2^8
+ y = (y * (2 - (((x & 0xffff) * y) & 0xffff))) & 0xffff; // y == 1/x mod 2^16
+ // last step - calculate inverse mod DV directly
+ // assumes 16 < DB <= 32 and assumes ability to handle 48-bit ints
+ y = (y * (2 - x * y % this.DV)) % this.DV; // y == 1/x mod 2^dbits
+ // we really want the negative inverse, and -DV < y < DV
+ return (y > 0) ? this.DV - y : -y
+}
+
+// Montgomery reduction
+function Montgomery(m) {
+ this.m = m
+ this.mp = m.invDigit()
+ this.mpl = this.mp & 0x7fff
+ this.mph = this.mp >> 15
+ this.um = (1 << (m.DB - 15)) - 1
+ this.mt2 = 2 * m.t
+}
+
+// xR mod m
+function montConvert(x) {
+ var r = new BigInteger()
+ x.abs()
+ .dlShiftTo(this.m.t, r)
+ r.divRemTo(this.m, null, r)
+ if (x.s < 0 && r.compareTo(BigInteger.ZERO) > 0) this.m.subTo(r, r)
+ return r
+}
+
+// x/R mod m
+function montRevert(x) {
+ var r = new BigInteger()
+ x.copyTo(r)
+ this.reduce(r)
+ return r
+}
+
+// x = x/R mod m (HAC 14.32)
+function montReduce(x) {
+ while (x.t <= this.mt2) // pad x so am has enough room later
+ x[x.t++] = 0
+ for (var i = 0; i < this.m.t; ++i) {
+ // faster way of calculating u0 = x[i]*mp mod DV
+ var j = x[i] & 0x7fff
+ var u0 = (j * this.mpl + (((j * this.mph + (x[i] >> 15) * this.mpl) & this.um) << 15)) & x.DM
+ // use am to combine the multiply-shift-add into one call
+ j = i + this.m.t
+ x[j] += this.m.am(0, u0, x, i, 0, this.m.t)
+ // propagate carry
+ while (x[j] >= x.DV) {
+ x[j] -= x.DV
+ x[++j]++
+ }
+ }
+ x.clamp()
+ x.drShiftTo(this.m.t, x)
+ if (x.compareTo(this.m) >= 0) x.subTo(this.m, x)
+}
+
+// r = "x^2/R mod m"; x != r
+function montSqrTo(x, r) {
+ x.squareTo(r)
+ this.reduce(r)
+}
+
+// r = "xy/R mod m"; x,y != r
+function montMulTo(x, y, r) {
+ x.multiplyTo(y, r)
+ this.reduce(r)
+}
+
+Montgomery.prototype.convert = montConvert
+Montgomery.prototype.revert = montRevert
+Montgomery.prototype.reduce = montReduce
+Montgomery.prototype.mulTo = montMulTo
+Montgomery.prototype.sqrTo = montSqrTo
+
+// (protected) true iff this is even
+function bnpIsEven() {
+ return ((this.t > 0) ? (this[0] & 1) : this.s) == 0
+}
+
+// (protected) this^e, e < 2^32, doing sqr and mul with "r" (HAC 14.79)
+function bnpExp(e, z) {
+ if (e > 0xffffffff || e < 1) return BigInteger.ONE
+ var r = new BigInteger(),
+ r2 = new BigInteger(),
+ g = z.convert(this),
+ i = nbits(e) - 1
+ g.copyTo(r)
+ while (--i >= 0) {
+ z.sqrTo(r, r2)
+ if ((e & (1 << i)) > 0) z.mulTo(r2, g, r)
+ else {
+ var t = r
+ r = r2
+ r2 = t
+ }
+ }
+ return z.revert(r)
+}
+
+// (public) this^e % m, 0 <= e < 2^32
+function bnModPowInt(e, m) {
+ var z
+ if (e < 256 || m.isEven()) z = new Classic(m)
+ else z = new Montgomery(m)
+ return this.exp(e, z)
+}
+
+// protected
+proto.copyTo = bnpCopyTo
+proto.fromInt = bnpFromInt
+proto.fromString = bnpFromString
+proto.clamp = bnpClamp
+proto.dlShiftTo = bnpDLShiftTo
+proto.drShiftTo = bnpDRShiftTo
+proto.lShiftTo = bnpLShiftTo
+proto.rShiftTo = bnpRShiftTo
+proto.subTo = bnpSubTo
+proto.multiplyTo = bnpMultiplyTo
+proto.squareTo = bnpSquareTo
+proto.divRemTo = bnpDivRemTo
+proto.invDigit = bnpInvDigit
+proto.isEven = bnpIsEven
+proto.exp = bnpExp
+
+// public
+proto.toString = bnToString
+proto.negate = bnNegate
+proto.abs = bnAbs
+proto.compareTo = bnCompareTo
+proto.bitLength = bnBitLength
+proto.byteLength = bnByteLength
+proto.mod = bnMod
+proto.modPowInt = bnModPowInt
+
+// (public)
+function bnClone() {
+ var r = new BigInteger()
+ this.copyTo(r)
+ return r
+}
+
+// (public) return value as integer
+function bnIntValue() {
+ if (this.s < 0) {
+ if (this.t == 1) return this[0] - this.DV
+ else if (this.t == 0) return -1
+ } else if (this.t == 1) return this[0]
+ else if (this.t == 0) return 0
+ // assumes 16 < DB < 32
+ return ((this[1] & ((1 << (32 - this.DB)) - 1)) << this.DB) | this[0]
+}
+
+// (public) return value as byte
+function bnByteValue() {
+ return (this.t == 0) ? this.s : (this[0] << 24) >> 24
+}
+
+// (public) return value as short (assumes DB>=16)
+function bnShortValue() {
+ return (this.t == 0) ? this.s : (this[0] << 16) >> 16
+}
+
+// (protected) return x s.t. r^x < DV
+function bnpChunkSize(r) {
+ return Math.floor(Math.LN2 * this.DB / Math.log(r))
+}
+
+// (public) 0 if this == 0, 1 if this > 0
+function bnSigNum() {
+ if (this.s < 0) return -1
+ else if (this.t <= 0 || (this.t == 1 && this[0] <= 0)) return 0
+ else return 1
+}
+
+// (protected) convert to radix string
+function bnpToRadix(b) {
+ if (b == null) b = 10
+ if (this.signum() == 0 || b < 2 || b > 36) return "0"
+ var cs = this.chunkSize(b)
+ var a = Math.pow(b, cs)
+ var d = nbv(a),
+ y = new BigInteger(),
+ z = new BigInteger(),
+ r = ""
+ this.divRemTo(d, y, z)
+ while (y.signum() > 0) {
+ r = (a + z.intValue())
+ .toString(b)
+ .substr(1) + r
+ y.divRemTo(d, y, z)
+ }
+ return z.intValue()
+ .toString(b) + r
+}
+
+// (protected) convert from radix string
+function bnpFromRadix(s, b) {
+ var self = this
+ self.fromInt(0)
+ if (b == null) b = 10
+ var cs = self.chunkSize(b)
+ var d = Math.pow(b, cs),
+ mi = false,
+ j = 0,
+ w = 0
+ for (var i = 0; i < s.length; ++i) {
+ var x = intAt(s, i)
+ if (x < 0) {
+ if (s.charAt(i) == "-" && self.signum() == 0) mi = true
+ continue
+ }
+ w = b * w + x
+ if (++j >= cs) {
+ self.dMultiply(d)
+ self.dAddOffset(w, 0)
+ j = 0
+ w = 0
+ }
+ }
+ if (j > 0) {
+ self.dMultiply(Math.pow(b, j))
+ self.dAddOffset(w, 0)
+ }
+ if (mi) BigInteger.ZERO.subTo(self, self)
+}
+
+// (protected) alternate constructor
+function bnpFromNumber(a, b, c) {
+ var self = this
+ if ("number" == typeof b) {
+ // new BigInteger(int,int,RNG)
+ if (a < 2) self.fromInt(1)
+ else {
+ self.fromNumber(a, c)
+ if (!self.testBit(a - 1)) // force MSB set
+ self.bitwiseTo(BigInteger.ONE.shiftLeft(a - 1), op_or, self)
+ if (self.isEven()) self.dAddOffset(1, 0); // force odd
+ while (!self.isProbablePrime(b)) {
+ self.dAddOffset(2, 0)
+ if (self.bitLength() > a) self.subTo(BigInteger.ONE.shiftLeft(a - 1), self)
+ }
+ }
+ } else {
+ // new BigInteger(int,RNG)
+ var x = new Array(),
+ t = a & 7
+ x.length = (a >> 3) + 1
+ b.nextBytes(x)
+ if (t > 0) x[0] &= ((1 << t) - 1)
+ else x[0] = 0
+ self.fromString(x, 256)
+ }
+}
+
+// (public) convert to bigendian byte array
+function bnToByteArray() {
+ var self = this
+ var i = self.t,
+ r = new Array()
+ r[0] = self.s
+ var p = self.DB - (i * self.DB) % 8,
+ d, k = 0
+ if (i-- > 0) {
+ if (p < self.DB && (d = self[i] >> p) != (self.s & self.DM) >> p)
+ r[k++] = d | (self.s << (self.DB - p))
+ while (i >= 0) {
+ if (p < 8) {
+ d = (self[i] & ((1 << p) - 1)) << (8 - p)
+ d |= self[--i] >> (p += self.DB - 8)
+ } else {
+ d = (self[i] >> (p -= 8)) & 0xff
+ if (p <= 0) {
+ p += self.DB
+ --i
+ }
+ }
+ if ((d & 0x80) != 0) d |= -256
+ if (k === 0 && (self.s & 0x80) != (d & 0x80))++k
+ if (k > 0 || d != self.s) r[k++] = d
+ }
+ }
+ return r
+}
+
+function bnEquals(a) {
+ return (this.compareTo(a) == 0)
+}
+
+function bnMin(a) {
+ return (this.compareTo(a) < 0) ? this : a
+}
+
+function bnMax(a) {
+ return (this.compareTo(a) > 0) ? this : a
+}
+
+// (protected) r = this op a (bitwise)
+function bnpBitwiseTo(a, op, r) {
+ var self = this
+ var i, f, m = Math.min(a.t, self.t)
+ for (i = 0; i < m; ++i) r[i] = op(self[i], a[i])
+ if (a.t < self.t) {
+ f = a.s & self.DM
+ for (i = m; i < self.t; ++i) r[i] = op(self[i], f)
+ r.t = self.t
+ } else {
+ f = self.s & self.DM
+ for (i = m; i < a.t; ++i) r[i] = op(f, a[i])
+ r.t = a.t
+ }
+ r.s = op(self.s, a.s)
+ r.clamp()
+}
+
+// (public) this & a
+function op_and(x, y) {
+ return x & y
+}
+
+function bnAnd(a) {
+ var r = new BigInteger()
+ this.bitwiseTo(a, op_and, r)
+ return r
+}
+
+// (public) this | a
+function op_or(x, y) {
+ return x | y
+}
+
+function bnOr(a) {
+ var r = new BigInteger()
+ this.bitwiseTo(a, op_or, r)
+ return r
+}
+
+// (public) this ^ a
+function op_xor(x, y) {
+ return x ^ y
+}
+
+function bnXor(a) {
+ var r = new BigInteger()
+ this.bitwiseTo(a, op_xor, r)
+ return r
+}
+
+// (public) this & ~a
+function op_andnot(x, y) {
+ return x & ~y
+}
+
+function bnAndNot(a) {
+ var r = new BigInteger()
+ this.bitwiseTo(a, op_andnot, r)
+ return r
+}
+
+// (public) ~this
+function bnNot() {
+ var r = new BigInteger()
+ for (var i = 0; i < this.t; ++i) r[i] = this.DM & ~this[i]
+ r.t = this.t
+ r.s = ~this.s
+ return r
+}
+
+// (public) this << n
+function bnShiftLeft(n) {
+ var r = new BigInteger()
+ if (n < 0) this.rShiftTo(-n, r)
+ else this.lShiftTo(n, r)
+ return r
+}
+
+// (public) this >> n
+function bnShiftRight(n) {
+ var r = new BigInteger()
+ if (n < 0) this.lShiftTo(-n, r)
+ else this.rShiftTo(n, r)
+ return r
+}
+
+// return index of lowest 1-bit in x, x < 2^31
+function lbit(x) {
+ if (x == 0) return -1
+ var r = 0
+ if ((x & 0xffff) == 0) {
+ x >>= 16
+ r += 16
+ }
+ if ((x & 0xff) == 0) {
+ x >>= 8
+ r += 8
+ }
+ if ((x & 0xf) == 0) {
+ x >>= 4
+ r += 4
+ }
+ if ((x & 3) == 0) {
+ x >>= 2
+ r += 2
+ }
+ if ((x & 1) == 0)++r
+ return r
+}
+
+// (public) returns index of lowest 1-bit (or -1 if none)
+function bnGetLowestSetBit() {
+ for (var i = 0; i < this.t; ++i)
+ if (this[i] != 0) return i * this.DB + lbit(this[i])
+ if (this.s < 0) return this.t * this.DB
+ return -1
+}
+
+// return number of 1 bits in x
+function cbit(x) {
+ var r = 0
+ while (x != 0) {
+ x &= x - 1
+ ++r
+ }
+ return r
+}
+
+// (public) return number of set bits
+function bnBitCount() {
+ var r = 0,
+ x = this.s & this.DM
+ for (var i = 0; i < this.t; ++i) r += cbit(this[i] ^ x)
+ return r
+}
+
+// (public) true iff nth bit is set
+function bnTestBit(n) {
+ var j = Math.floor(n / this.DB)
+ if (j >= this.t) return (this.s != 0)
+ return ((this[j] & (1 << (n % this.DB))) != 0)
+}
+
+// (protected) this op (1<
>= self.DB
+ }
+ if (a.t < self.t) {
+ c += a.s
+ while (i < self.t) {
+ c += self[i]
+ r[i++] = c & self.DM
+ c >>= self.DB
+ }
+ c += self.s
+ } else {
+ c += self.s
+ while (i < a.t) {
+ c += a[i]
+ r[i++] = c & self.DM
+ c >>= self.DB
+ }
+ c += a.s
+ }
+ r.s = (c < 0) ? -1 : 0
+ if (c > 0) r[i++] = c
+ else if (c < -1) r[i++] = self.DV + c
+ r.t = i
+ r.clamp()
+}
+
+// (public) this + a
+function bnAdd(a) {
+ var r = new BigInteger()
+ this.addTo(a, r)
+ return r
+}
+
+// (public) this - a
+function bnSubtract(a) {
+ var r = new BigInteger()
+ this.subTo(a, r)
+ return r
+}
+
+// (public) this * a
+function bnMultiply(a) {
+ var r = new BigInteger()
+ this.multiplyTo(a, r)
+ return r
+}
+
+// (public) this^2
+function bnSquare() {
+ var r = new BigInteger()
+ this.squareTo(r)
+ return r
+}
+
+// (public) this / a
+function bnDivide(a) {
+ var r = new BigInteger()
+ this.divRemTo(a, r, null)
+ return r
+}
+
+// (public) this % a
+function bnRemainder(a) {
+ var r = new BigInteger()
+ this.divRemTo(a, null, r)
+ return r
+}
+
+// (public) [this/a,this%a]
+function bnDivideAndRemainder(a) {
+ var q = new BigInteger(),
+ r = new BigInteger()
+ this.divRemTo(a, q, r)
+ return new Array(q, r)
+}
+
+// (protected) this *= n, this >= 0, 1 < n < DV
+function bnpDMultiply(n) {
+ this[this.t] = this.am(0, n - 1, this, 0, 0, this.t)
+ ++this.t
+ this.clamp()
+}
+
+// (protected) this += n << w words, this >= 0
+function bnpDAddOffset(n, w) {
+ if (n == 0) return
+ while (this.t <= w) this[this.t++] = 0
+ this[w] += n
+ while (this[w] >= this.DV) {
+ this[w] -= this.DV
+ if (++w >= this.t) this[this.t++] = 0
+ ++this[w]
+ }
+}
+
+// A "null" reducer
+function NullExp() {}
+
+function nNop(x) {
+ return x
+}
+
+function nMulTo(x, y, r) {
+ x.multiplyTo(y, r)
+}
+
+function nSqrTo(x, r) {
+ x.squareTo(r)
+}
+
+NullExp.prototype.convert = nNop
+NullExp.prototype.revert = nNop
+NullExp.prototype.mulTo = nMulTo
+NullExp.prototype.sqrTo = nSqrTo
+
+// (public) this^e
+function bnPow(e) {
+ return this.exp(e, new NullExp())
+}
+
+// (protected) r = lower n words of "this * a", a.t <= n
+// "this" should be the larger one if appropriate.
+function bnpMultiplyLowerTo(a, n, r) {
+ var i = Math.min(this.t + a.t, n)
+ r.s = 0; // assumes a,this >= 0
+ r.t = i
+ while (i > 0) r[--i] = 0
+ var j
+ for (j = r.t - this.t; i < j; ++i) r[i + this.t] = this.am(0, a[i], r, i, 0, this.t)
+ for (j = Math.min(a.t, n); i < j; ++i) this.am(0, a[i], r, i, 0, n - i)
+ r.clamp()
+}
+
+// (protected) r = "this * a" without lower n words, n > 0
+// "this" should be the larger one if appropriate.
+function bnpMultiplyUpperTo(a, n, r) {
+ --n
+ var i = r.t = this.t + a.t - n
+ r.s = 0; // assumes a,this >= 0
+ while (--i >= 0) r[i] = 0
+ for (i = Math.max(n - this.t, 0); i < a.t; ++i)
+ r[this.t + i - n] = this.am(n - i, a[i], r, 0, 0, this.t + i - n)
+ r.clamp()
+ r.drShiftTo(1, r)
+}
+
+// Barrett modular reduction
+function Barrett(m) {
+ // setup Barrett
+ this.r2 = new BigInteger()
+ this.q3 = new BigInteger()
+ BigInteger.ONE.dlShiftTo(2 * m.t, this.r2)
+ this.mu = this.r2.divide(m)
+ this.m = m
+}
+
+function barrettConvert(x) {
+ if (x.s < 0 || x.t > 2 * this.m.t) return x.mod(this.m)
+ else if (x.compareTo(this.m) < 0) return x
+ else {
+ var r = new BigInteger()
+ x.copyTo(r)
+ this.reduce(r)
+ return r
+ }
+}
+
+function barrettRevert(x) {
+ return x
+}
+
+// x = x mod m (HAC 14.42)
+function barrettReduce(x) {
+ var self = this
+ x.drShiftTo(self.m.t - 1, self.r2)
+ if (x.t > self.m.t + 1) {
+ x.t = self.m.t + 1
+ x.clamp()
+ }
+ self.mu.multiplyUpperTo(self.r2, self.m.t + 1, self.q3)
+ self.m.multiplyLowerTo(self.q3, self.m.t + 1, self.r2)
+ while (x.compareTo(self.r2) < 0) x.dAddOffset(1, self.m.t + 1)
+ x.subTo(self.r2, x)
+ while (x.compareTo(self.m) >= 0) x.subTo(self.m, x)
+}
+
+// r = x^2 mod m; x != r
+function barrettSqrTo(x, r) {
+ x.squareTo(r)
+ this.reduce(r)
+}
+
+// r = x*y mod m; x,y != r
+function barrettMulTo(x, y, r) {
+ x.multiplyTo(y, r)
+ this.reduce(r)
+}
+
+Barrett.prototype.convert = barrettConvert
+Barrett.prototype.revert = barrettRevert
+Barrett.prototype.reduce = barrettReduce
+Barrett.prototype.mulTo = barrettMulTo
+Barrett.prototype.sqrTo = barrettSqrTo
+
+// (public) this^e % m (HAC 14.85)
+function bnModPow(e, m) {
+ var i = e.bitLength(),
+ k, r = nbv(1),
+ z
+ if (i <= 0) return r
+ else if (i < 18) k = 1
+ else if (i < 48) k = 3
+ else if (i < 144) k = 4
+ else if (i < 768) k = 5
+ else k = 6
+ if (i < 8)
+ z = new Classic(m)
+ else if (m.isEven())
+ z = new Barrett(m)
+ else
+ z = new Montgomery(m)
+
+ // precomputation
+ var g = new Array(),
+ n = 3,
+ k1 = k - 1,
+ km = (1 << k) - 1
+ g[1] = z.convert(this)
+ if (k > 1) {
+ var g2 = new BigInteger()
+ z.sqrTo(g[1], g2)
+ while (n <= km) {
+ g[n] = new BigInteger()
+ z.mulTo(g2, g[n - 2], g[n])
+ n += 2
+ }
+ }
+
+ var j = e.t - 1,
+ w, is1 = true,
+ r2 = new BigInteger(),
+ t
+ i = nbits(e[j]) - 1
+ while (j >= 0) {
+ if (i >= k1) w = (e[j] >> (i - k1)) & km
+ else {
+ w = (e[j] & ((1 << (i + 1)) - 1)) << (k1 - i)
+ if (j > 0) w |= e[j - 1] >> (this.DB + i - k1)
+ }
+
+ n = k
+ while ((w & 1) == 0) {
+ w >>= 1
+ --n
+ }
+ if ((i -= n) < 0) {
+ i += this.DB
+ --j
+ }
+ if (is1) { // ret == 1, don't bother squaring or multiplying it
+ g[w].copyTo(r)
+ is1 = false
+ } else {
+ while (n > 1) {
+ z.sqrTo(r, r2)
+ z.sqrTo(r2, r)
+ n -= 2
+ }
+ if (n > 0) z.sqrTo(r, r2)
+ else {
+ t = r
+ r = r2
+ r2 = t
+ }
+ z.mulTo(r2, g[w], r)
+ }
+
+ while (j >= 0 && (e[j] & (1 << i)) == 0) {
+ z.sqrTo(r, r2)
+ t = r
+ r = r2
+ r2 = t
+ if (--i < 0) {
+ i = this.DB - 1
+ --j
+ }
+ }
+ }
+ return z.revert(r)
+}
+
+// (public) gcd(this,a) (HAC 14.54)
+function bnGCD(a) {
+ var x = (this.s < 0) ? this.negate() : this.clone()
+ var y = (a.s < 0) ? a.negate() : a.clone()
+ if (x.compareTo(y) < 0) {
+ var t = x
+ x = y
+ y = t
+ }
+ var i = x.getLowestSetBit(),
+ g = y.getLowestSetBit()
+ if (g < 0) return x
+ if (i < g) g = i
+ if (g > 0) {
+ x.rShiftTo(g, x)
+ y.rShiftTo(g, y)
+ }
+ while (x.signum() > 0) {
+ if ((i = x.getLowestSetBit()) > 0) x.rShiftTo(i, x)
+ if ((i = y.getLowestSetBit()) > 0) y.rShiftTo(i, y)
+ if (x.compareTo(y) >= 0) {
+ x.subTo(y, x)
+ x.rShiftTo(1, x)
+ } else {
+ y.subTo(x, y)
+ y.rShiftTo(1, y)
+ }
+ }
+ if (g > 0) y.lShiftTo(g, y)
+ return y
+}
+
+// (protected) this % n, n < 2^26
+function bnpModInt(n) {
+ if (n <= 0) return 0
+ var d = this.DV % n,
+ r = (this.s < 0) ? n - 1 : 0
+ if (this.t > 0)
+ if (d == 0) r = this[0] % n
+ else
+ for (var i = this.t - 1; i >= 0; --i) r = (d * r + this[i]) % n
+ return r
+}
+
+// (public) 1/this % m (HAC 14.61)
+function bnModInverse(m) {
+ var ac = m.isEven()
+ if (this.signum() === 0) throw new Error('division by zero')
+ if ((this.isEven() && ac) || m.signum() == 0) return BigInteger.ZERO
+ var u = m.clone(),
+ v = this.clone()
+ var a = nbv(1),
+ b = nbv(0),
+ c = nbv(0),
+ d = nbv(1)
+ while (u.signum() != 0) {
+ while (u.isEven()) {
+ u.rShiftTo(1, u)
+ if (ac) {
+ if (!a.isEven() || !b.isEven()) {
+ a.addTo(this, a)
+ b.subTo(m, b)
+ }
+ a.rShiftTo(1, a)
+ } else if (!b.isEven()) b.subTo(m, b)
+ b.rShiftTo(1, b)
+ }
+ while (v.isEven()) {
+ v.rShiftTo(1, v)
+ if (ac) {
+ if (!c.isEven() || !d.isEven()) {
+ c.addTo(this, c)
+ d.subTo(m, d)
+ }
+ c.rShiftTo(1, c)
+ } else if (!d.isEven()) d.subTo(m, d)
+ d.rShiftTo(1, d)
+ }
+ if (u.compareTo(v) >= 0) {
+ u.subTo(v, u)
+ if (ac) a.subTo(c, a)
+ b.subTo(d, b)
+ } else {
+ v.subTo(u, v)
+ if (ac) c.subTo(a, c)
+ d.subTo(b, d)
+ }
+ }
+ if (v.compareTo(BigInteger.ONE) != 0) return BigInteger.ZERO
+ while (d.compareTo(m) >= 0) d.subTo(m, d)
+ while (d.signum() < 0) d.addTo(m, d)
+ return d
+}
+
+var lowprimes = [
+ 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71,
+ 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151,
+ 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233,
+ 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313, 317,
+ 331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397, 401, 409, 419,
+ 421, 431, 433, 439, 443, 449, 457, 461, 463, 467, 479, 487, 491, 499, 503,
+ 509, 521, 523, 541, 547, 557, 563, 569, 571, 577, 587, 593, 599, 601, 607,
+ 613, 617, 619, 631, 641, 643, 647, 653, 659, 661, 673, 677, 683, 691, 701,
+ 709, 719, 727, 733, 739, 743, 751, 757, 761, 769, 773, 787, 797, 809, 811,
+ 821, 823, 827, 829, 839, 853, 857, 859, 863, 877, 881, 883, 887, 907, 911,
+ 919, 929, 937, 941, 947, 953, 967, 971, 977, 983, 991, 997
+]
+
+var lplim = (1 << 26) / lowprimes[lowprimes.length - 1]
+
+// (public) test primality with certainty >= 1-.5^t
+function bnIsProbablePrime(t) {
+ var i, x = this.abs()
+ if (x.t == 1 && x[0] <= lowprimes[lowprimes.length - 1]) {
+ for (i = 0; i < lowprimes.length; ++i)
+ if (x[0] == lowprimes[i]) return true
+ return false
+ }
+ if (x.isEven()) return false
+ i = 1
+ while (i < lowprimes.length) {
+ var m = lowprimes[i],
+ j = i + 1
+ while (j < lowprimes.length && m < lplim) m *= lowprimes[j++]
+ m = x.modInt(m)
+ while (i < j) if (m % lowprimes[i++] == 0) return false
+ }
+ return x.millerRabin(t)
+}
+
+// (protected) true if probably prime (HAC 4.24, Miller-Rabin)
+function bnpMillerRabin(t) {
+ var n1 = this.subtract(BigInteger.ONE)
+ var k = n1.getLowestSetBit()
+ if (k <= 0) return false
+ var r = n1.shiftRight(k)
+ t = (t + 1) >> 1
+ if (t > lowprimes.length) t = lowprimes.length
+ var a = new BigInteger(null)
+ var j, bases = []
+ for (var i = 0; i < t; ++i) {
+ for (;;) {
+ j = lowprimes[Math.floor(Math.random() * lowprimes.length)]
+ if (bases.indexOf(j) == -1) break
+ }
+ bases.push(j)
+ a.fromInt(j)
+ var y = a.modPow(r, this)
+ if (y.compareTo(BigInteger.ONE) != 0 && y.compareTo(n1) != 0) {
+ var j = 1
+ while (j++ < k && y.compareTo(n1) != 0) {
+ y = y.modPowInt(2, this)
+ if (y.compareTo(BigInteger.ONE) == 0) return false
+ }
+ if (y.compareTo(n1) != 0) return false
+ }
+ }
+ return true
+}
+
+// protected
+proto.chunkSize = bnpChunkSize
+proto.toRadix = bnpToRadix
+proto.fromRadix = bnpFromRadix
+proto.fromNumber = bnpFromNumber
+proto.bitwiseTo = bnpBitwiseTo
+proto.changeBit = bnpChangeBit
+proto.addTo = bnpAddTo
+proto.dMultiply = bnpDMultiply
+proto.dAddOffset = bnpDAddOffset
+proto.multiplyLowerTo = bnpMultiplyLowerTo
+proto.multiplyUpperTo = bnpMultiplyUpperTo
+proto.modInt = bnpModInt
+proto.millerRabin = bnpMillerRabin
+
+// public
+proto.clone = bnClone
+proto.intValue = bnIntValue
+proto.byteValue = bnByteValue
+proto.shortValue = bnShortValue
+proto.signum = bnSigNum
+proto.toByteArray = bnToByteArray
+proto.equals = bnEquals
+proto.min = bnMin
+proto.max = bnMax
+proto.and = bnAnd
+proto.or = bnOr
+proto.xor = bnXor
+proto.andNot = bnAndNot
+proto.not = bnNot
+proto.shiftLeft = bnShiftLeft
+proto.shiftRight = bnShiftRight
+proto.getLowestSetBit = bnGetLowestSetBit
+proto.bitCount = bnBitCount
+proto.testBit = bnTestBit
+proto.setBit = bnSetBit
+proto.clearBit = bnClearBit
+proto.flipBit = bnFlipBit
+proto.add = bnAdd
+proto.subtract = bnSubtract
+proto.multiply = bnMultiply
+proto.divide = bnDivide
+proto.remainder = bnRemainder
+proto.divideAndRemainder = bnDivideAndRemainder
+proto.modPow = bnModPow
+proto.modInverse = bnModInverse
+proto.pow = bnPow
+proto.gcd = bnGCD
+proto.isProbablePrime = bnIsProbablePrime
+
+// JSBN-specific extension
+proto.square = bnSquare
+
+// constants
+BigInteger.ZERO = nbv(0)
+BigInteger.ONE = nbv(1)
+BigInteger.valueOf = nbv
+
+module.exports = BigInteger
+
+},{"../package.json":38}],36:[function(require,module,exports){
+(function (Buffer){
+// FIXME: Kind of a weird way to throw exceptions, consider removing
+var assert = require('assert')
+var BigInteger = require('./bigi')
+
+/**
+ * Turns a byte array into a big integer.
+ *
+ * This function will interpret a byte array as a big integer in big
+ * endian notation.
+ */
+BigInteger.fromByteArrayUnsigned = function(byteArray) {
+ // BigInteger expects a DER integer conformant byte array
+ if (byteArray[0] & 0x80) {
+ return new BigInteger([0].concat(byteArray))
+ }
+
+ return new BigInteger(byteArray)
+}
+
+/**
+ * Returns a byte array representation of the big integer.
+ *
+ * This returns the absolute of the contained value in big endian
+ * form. A value of zero results in an empty array.
+ */
+BigInteger.prototype.toByteArrayUnsigned = function() {
+ var byteArray = this.toByteArray()
+ return byteArray[0] === 0 ? byteArray.slice(1) : byteArray
+}
+
+BigInteger.fromDERInteger = function(byteArray) {
+ return new BigInteger(byteArray)
+}
+
+/*
+ * Converts BigInteger to a DER integer representation.
+ *
+ * The format for this value uses the most significant bit as a sign
+ * bit. If the most significant bit is already set and the integer is
+ * positive, a 0x00 is prepended.
+ *
+ * Examples:
+ *
+ * 0 => 0x00
+ * 1 => 0x01
+ * -1 => 0xff
+ * 127 => 0x7f
+ * -127 => 0x81
+ * 128 => 0x0080
+ * -128 => 0x80
+ * 255 => 0x00ff
+ * -255 => 0xff01
+ * 16300 => 0x3fac
+ * -16300 => 0xc054
+ * 62300 => 0x00f35c
+ * -62300 => 0xff0ca4
+*/
+BigInteger.prototype.toDERInteger = BigInteger.prototype.toByteArray
+
+BigInteger.fromBuffer = function(buffer) {
+ // BigInteger expects a DER integer conformant byte array
+ if (buffer[0] & 0x80) {
+ var byteArray = Array.prototype.slice.call(buffer)
+
+ return new BigInteger([0].concat(byteArray))
+ }
+
+ return new BigInteger(buffer)
+}
+
+BigInteger.fromHex = function(hex) {
+ if (hex === '') return BigInteger.ZERO
+
+ assert.equal(hex, hex.match(/^[A-Fa-f0-9]+/), 'Invalid hex string')
+ assert.equal(hex.length % 2, 0, 'Incomplete hex')
+ return new BigInteger(hex, 16)
+}
+
+BigInteger.prototype.toBuffer = function(size) {
+ var byteArray = this.toByteArrayUnsigned()
+ var zeros = []
+
+ var padding = size - byteArray.length
+ while (zeros.length < padding) zeros.push(0)
+
+ return new Buffer(zeros.concat(byteArray))
+}
+
+BigInteger.prototype.toHex = function(size) {
+ return this.toBuffer(size).toString('hex')
+}
+
+}).call(this,require("buffer").Buffer)
+},{"./bigi":35,"assert":1,"buffer":4}],37:[function(require,module,exports){
+var BigInteger = require('./bigi')
+
+//addons
+require('./convert')
+
+module.exports = BigInteger
+},{"./bigi":35,"./convert":36}],38:[function(require,module,exports){
+module.exports={
+ "_args": [
+ [
+ "bigi",
+ "/home/ian/git/bitcoin/bitcoinjs-lib-browser"
+ ]
+ ],
+ "_from": "bigi@latest",
+ "_id": "bigi@1.4.2",
+ "_inCache": true,
+ "_installable": true,
+ "_location": "/bigi",
+ "_nodeVersion": "6.1.0",
+ "_npmOperationalInternal": {
+ "host": "packages-12-west.internal.npmjs.com",
+ "tmp": "tmp/bigi-1.4.2.tgz_1469584192413_0.6801238611806184"
+ },
+ "_npmUser": {
+ "email": "jprichardson@gmail.com",
+ "name": "jprichardson"
+ },
+ "_npmVersion": "3.8.6",
+ "_phantomChildren": {},
+ "_requested": {
+ "name": "bigi",
+ "raw": "bigi",
+ "rawSpec": "",
+ "scope": null,
+ "spec": "latest",
+ "type": "tag"
+ },
+ "_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",
+ "bugs": {
+ "url": "https://github.com/cryptocoinjs/bigi/issues"
+ },
+ "dependencies": {},
+ "description": "Big integers.",
+ "devDependencies": {
+ "coveralls": "^2.11.2",
+ "istanbul": "^0.3.5",
+ "jshint": "^2.5.1",
+ "mocha": "^2.1.0",
+ "mochify": "^2.1.0"
+ },
+ "directories": {},
+ "dist": {
+ "shasum": "9c665a95f88b8b08fc05cfd731f561859d725825",
+ "tarball": "https://registry.npmjs.org/bigi/-/bigi-1.4.2.tgz"
+ },
+ "gitHead": "c25308081c896ff84702303722bf5ecd8b3f78e3",
+ "homepage": "https://github.com/cryptocoinjs/bigi#readme",
+ "keywords": [
+ "cryptography",
+ "math",
+ "bitcoin",
+ "arbitrary",
+ "precision",
+ "arithmetic",
+ "big",
+ "integer",
+ "int",
+ "number",
+ "biginteger",
+ "bigint",
+ "bignumber",
+ "decimal",
+ "float"
+ ],
+ "main": "./lib/index.js",
+ "maintainers": [
+ {
+ "email": "boydb@midnightdesign.ws",
+ "name": "midnightlightning"
+ },
+ {
+ "email": "sidazhang89@gmail.com",
+ "name": "sidazhang"
+ },
+ {
+ "email": "npm@shesek.info",
+ "name": "nadav"
+ },
+ {
+ "email": "jprichardson@gmail.com",
+ "name": "jprichardson"
+ }
+ ],
+ "name": "bigi",
+ "optionalDependencies": {},
+ "readme": "ERROR: No README data found!",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/cryptocoinjs/bigi.git"
+ },
+ "scripts": {
+ "browser-test": "mochify --wd -R spec",
+ "coverage": "istanbul cover ./node_modules/.bin/_mocha -- --reporter list test/*.js",
+ "coveralls": "npm run-script coverage && node ./node_modules/.bin/coveralls < coverage/lcov.info",
+ "jshint": "jshint --config jshint.json lib/*.js ; true",
+ "test": "_mocha -- test/*.js",
+ "unit": "mocha"
+ },
+ "testling": {
+ "browsers": [
+ "ie/9..latest",
+ "firefox/latest",
+ "chrome/latest",
+ "safari/6.0..latest",
+ "iphone/6.0..latest",
+ "android-browser/4.2..latest"
+ ],
+ "files": "test/*.js",
+ "harness": "mocha"
+ },
+ "version": "1.4.2"
+}
+
+},{}],39:[function(require,module,exports){
+// Reference https://github.com/bitcoin/bips/blob/master/bip-0066.mediawiki
+// Format: 0x30 [total-length] 0x02 [R-length] [R] 0x02 [S-length] [S]
+// NOTE: SIGHASH byte ignored AND restricted, truncate before use
+
+var Buffer = require('safe-buffer').Buffer
+
+function check (buffer) {
+ if (buffer.length < 8) return false
+ if (buffer.length > 72) return false
+ if (buffer[0] !== 0x30) return false
+ if (buffer[1] !== buffer.length - 2) return false
+ if (buffer[2] !== 0x02) return false
+
+ var lenR = buffer[3]
+ if (lenR === 0) return false
+ if (5 + lenR >= buffer.length) return false
+ if (buffer[4 + lenR] !== 0x02) return false
+
+ var lenS = buffer[5 + lenR]
+ if (lenS === 0) return false
+ if ((6 + lenR + lenS) !== buffer.length) return false
+
+ if (buffer[4] & 0x80) return false
+ if (lenR > 1 && (buffer[4] === 0x00) && !(buffer[5] & 0x80)) return false
+
+ if (buffer[lenR + 6] & 0x80) return false
+ if (lenS > 1 && (buffer[lenR + 6] === 0x00) && !(buffer[lenR + 7] & 0x80)) return false
+ return true
+}
+
+function decode (buffer) {
+ if (buffer.length < 8) throw new Error('DER sequence length is too short')
+ if (buffer.length > 72) throw new Error('DER sequence length is too long')
+ if (buffer[0] !== 0x30) throw new Error('Expected DER sequence')
+ if (buffer[1] !== buffer.length - 2) throw new Error('DER sequence length is invalid')
+ if (buffer[2] !== 0x02) throw new Error('Expected DER integer')
+
+ var lenR = buffer[3]
+ if (lenR === 0) throw new Error('R length is zero')
+ if (5 + lenR >= buffer.length) throw new Error('R length is too long')
+ if (buffer[4 + lenR] !== 0x02) throw new Error('Expected DER integer (2)')
+
+ var lenS = buffer[5 + lenR]
+ if (lenS === 0) throw new Error('S length is zero')
+ if ((6 + lenR + lenS) !== buffer.length) throw new Error('S length is invalid')
+
+ if (buffer[4] & 0x80) throw new Error('R value is negative')
+ if (lenR > 1 && (buffer[4] === 0x00) && !(buffer[5] & 0x80)) throw new Error('R value excessively padded')
+
+ if (buffer[lenR + 6] & 0x80) throw new Error('S value is negative')
+ if (lenS > 1 && (buffer[lenR + 6] === 0x00) && !(buffer[lenR + 7] & 0x80)) throw new Error('S value excessively padded')
+
+ // non-BIP66 - extract R, S values
+ return {
+ r: buffer.slice(4, 4 + lenR),
+ s: buffer.slice(6 + lenR)
+ }
+}
+
+/*
+ * Expects r and s to be positive DER integers.
+ *
+ * The DER format uses the most significant bit as a sign bit (& 0x80).
+ * If the significant bit is set AND the integer is positive, a 0x00 is prepended.
+ *
+ * Examples:
+ *
+ * 0 => 0x00
+ * 1 => 0x01
+ * -1 => 0xff
+ * 127 => 0x7f
+ * -127 => 0x81
+ * 128 => 0x0080
+ * -128 => 0x80
+ * 255 => 0x00ff
+ * -255 => 0xff01
+ * 16300 => 0x3fac
+ * -16300 => 0xc054
+ * 62300 => 0x00f35c
+ * -62300 => 0xff0ca4
+*/
+function encode (r, s) {
+ var lenR = r.length
+ var lenS = s.length
+ if (lenR === 0) throw new Error('R length is zero')
+ if (lenS === 0) throw new Error('S length is zero')
+ if (lenR > 33) throw new Error('R length is too long')
+ if (lenS > 33) throw new Error('S length is too long')
+ if (r[0] & 0x80) throw new Error('R value is negative')
+ if (s[0] & 0x80) throw new Error('S value is negative')
+ if (lenR > 1 && (r[0] === 0x00) && !(r[1] & 0x80)) throw new Error('R value excessively padded')
+ if (lenS > 1 && (s[0] === 0x00) && !(s[1] & 0x80)) throw new Error('S value excessively padded')
+
+ var signature = Buffer.allocUnsafe(6 + lenR + lenS)
+
+ // 0x30 [total-length] 0x02 [R-length] [R] 0x02 [S-length] [S]
+ signature[0] = 0x30
+ signature[1] = signature.length - 2
+ signature[2] = 0x02
+ signature[3] = r.length
+ r.copy(signature, 4)
+ signature[4 + lenR] = 0x02
+ signature[5 + lenR] = s.length
+ s.copy(signature, 6 + lenR)
+
+ return signature
+}
+
+module.exports = {
+ check: check,
+ decode: decode,
+ encode: encode
+}
+
+},{"safe-buffer":98}],40:[function(require,module,exports){
+module.exports={
+ "OP_FALSE": 0,
+ "OP_0": 0,
+ "OP_PUSHDATA1": 76,
+ "OP_PUSHDATA2": 77,
+ "OP_PUSHDATA4": 78,
+ "OP_1NEGATE": 79,
+ "OP_RESERVED": 80,
+ "OP_1": 81,
+ "OP_TRUE": 81,
+ "OP_2": 82,
+ "OP_3": 83,
+ "OP_4": 84,
+ "OP_5": 85,
+ "OP_6": 86,
+ "OP_7": 87,
+ "OP_8": 88,
+ "OP_9": 89,
+ "OP_10": 90,
+ "OP_11": 91,
+ "OP_12": 92,
+ "OP_13": 93,
+ "OP_14": 94,
+ "OP_15": 95,
+ "OP_16": 96,
+
+ "OP_NOP": 97,
+ "OP_VER": 98,
+ "OP_IF": 99,
+ "OP_NOTIF": 100,
+ "OP_VERIF": 101,
+ "OP_VERNOTIF": 102,
+ "OP_ELSE": 103,
+ "OP_ENDIF": 104,
+ "OP_VERIFY": 105,
+ "OP_RETURN": 106,
+
+ "OP_TOALTSTACK": 107,
+ "OP_FROMALTSTACK": 108,
+ "OP_2DROP": 109,
+ "OP_2DUP": 110,
+ "OP_3DUP": 111,
+ "OP_2OVER": 112,
+ "OP_2ROT": 113,
+ "OP_2SWAP": 114,
+ "OP_IFDUP": 115,
+ "OP_DEPTH": 116,
+ "OP_DROP": 117,
+ "OP_DUP": 118,
+ "OP_NIP": 119,
+ "OP_OVER": 120,
+ "OP_PICK": 121,
+ "OP_ROLL": 122,
+ "OP_ROT": 123,
+ "OP_SWAP": 124,
+ "OP_TUCK": 125,
+
+ "OP_CAT": 126,
+ "OP_SUBSTR": 127,
+ "OP_LEFT": 128,
+ "OP_RIGHT": 129,
+ "OP_SIZE": 130,
+
+ "OP_INVERT": 131,
+ "OP_AND": 132,
+ "OP_OR": 133,
+ "OP_XOR": 134,
+ "OP_EQUAL": 135,
+ "OP_EQUALVERIFY": 136,
+ "OP_RESERVED1": 137,
+ "OP_RESERVED2": 138,
+
+ "OP_1ADD": 139,
+ "OP_1SUB": 140,
+ "OP_2MUL": 141,
+ "OP_2DIV": 142,
+ "OP_NEGATE": 143,
+ "OP_ABS": 144,
+ "OP_NOT": 145,
+ "OP_0NOTEQUAL": 146,
+ "OP_ADD": 147,
+ "OP_SUB": 148,
+ "OP_MUL": 149,
+ "OP_DIV": 150,
+ "OP_MOD": 151,
+ "OP_LSHIFT": 152,
+ "OP_RSHIFT": 153,
+
+ "OP_BOOLAND": 154,
+ "OP_BOOLOR": 155,
+ "OP_NUMEQUAL": 156,
+ "OP_NUMEQUALVERIFY": 157,
+ "OP_NUMNOTEQUAL": 158,
+ "OP_LESSTHAN": 159,
+ "OP_GREATERTHAN": 160,
+ "OP_LESSTHANOREQUAL": 161,
+ "OP_GREATERTHANOREQUAL": 162,
+ "OP_MIN": 163,
+ "OP_MAX": 164,
+
+ "OP_WITHIN": 165,
+
+ "OP_RIPEMD160": 166,
+ "OP_SHA1": 167,
+ "OP_SHA256": 168,
+ "OP_HASH160": 169,
+ "OP_HASH256": 170,
+ "OP_CODESEPARATOR": 171,
+ "OP_CHECKSIG": 172,
+ "OP_CHECKSIGVERIFY": 173,
+ "OP_CHECKMULTISIG": 174,
+ "OP_CHECKMULTISIGVERIFY": 175,
+
+ "OP_NOP1": 176,
+ "OP_NOP2": 177,
+ "OP_CHECKLOCKTIMEVERIFY": 177,
+
+ "OP_NOP3": 178,
+ "OP_NOP4": 179,
+ "OP_NOP5": 180,
+ "OP_NOP6": 181,
+ "OP_NOP7": 182,
+ "OP_NOP8": 183,
+ "OP_NOP9": 184,
+ "OP_NOP10": 185,
+
+ "OP_PUBKEYHASH": 253,
+ "OP_PUBKEY": 254,
+ "OP_INVALIDOPCODE": 255
+}
+
+},{}],41:[function(require,module,exports){
+var OPS = require('./index.json')
+
+var map = {}
+for (var op in OPS) {
+ var code = OPS[op]
+ map[code] = op
+}
+
+module.exports = map
+
+},{"./index.json":40}],42:[function(require,module,exports){
+var Buffer = require('safe-buffer').Buffer
+var bs58check = require('bs58check')
+var bscript = require('./script')
+var networks = require('./networks')
+var typeforce = require('typeforce')
+var types = require('./types')
+
+function fromBase58Check (address) {
+ var payload = bs58check.decode(address)
+ if (payload.length < 21) throw new TypeError(address + ' is too short')
+ if (payload.length > 21) throw new TypeError(address + ' is too long')
+
+ var version = payload.readUInt8(0)
+ var hash = payload.slice(1)
+
+ return { hash: hash, version: version }
+}
+
+function toBase58Check (hash, version) {
+ typeforce(types.tuple(types.Hash160bit, types.UInt8), arguments)
+
+ var payload = Buffer.allocUnsafe(21)
+ payload.writeUInt8(version, 0)
+ hash.copy(payload, 1)
+
+ return bs58check.encode(payload)
+}
+
+function fromOutputScript (outputScript, network) {
+ network = network || networks.bitcoin
+
+ if (bscript.pubKeyHash.output.check(outputScript)) return toBase58Check(bscript.compile(outputScript).slice(3, 23), network.pubKeyHash)
+ if (bscript.scriptHash.output.check(outputScript)) return toBase58Check(bscript.compile(outputScript).slice(2, 22), network.scriptHash)
+
+ throw new Error(bscript.toASM(outputScript) + ' has no matching Address')
+}
+
+function toOutputScript (address, network) {
+ network = network || networks.bitcoin
+
+ var decode = fromBase58Check(address)
+ if (decode.version === network.pubKeyHash) return bscript.pubKeyHash.output.encode(decode.hash)
+ if (decode.version === network.scriptHash) return bscript.scriptHash.output.encode(decode.hash)
+
+ throw new Error(address + ' has no matching Script')
+}
+
+module.exports = {
+ fromBase58Check: fromBase58Check,
+ fromOutputScript: fromOutputScript,
+ toBase58Check: toBase58Check,
+ toOutputScript: toOutputScript
+}
+
+},{"./networks":51,"./script":52,"./types":78,"bs58check":80,"safe-buffer":98,"typeforce":109}],43:[function(require,module,exports){
+var Buffer = require('safe-buffer').Buffer
+var bcrypto = require('./crypto')
+var fastMerkleRoot = require('merkle-lib/fastRoot')
+var typeforce = require('typeforce')
+var types = require('./types')
+var varuint = require('varuint-bitcoin')
+
+var Transaction = require('./transaction')
+
+function Block () {
+ this.version = 1
+ this.prevHash = null
+ this.merkleRoot = null
+ this.timestamp = 0
+ this.bits = 0
+ this.nonce = 0
+}
+
+Block.fromBuffer = function (buffer) {
+ if (buffer.length < 80) throw new Error('Buffer too small (< 80 bytes)')
+
+ var offset = 0
+ function readSlice (n) {
+ offset += n
+ return buffer.slice(offset - n, offset)
+ }
+
+ function readUInt32 () {
+ var i = buffer.readUInt32LE(offset)
+ offset += 4
+ return i
+ }
+
+ function readInt32 () {
+ var i = buffer.readInt32LE(offset)
+ offset += 4
+ return i
+ }
+
+ var block = new Block()
+ block.version = readInt32()
+ block.prevHash = readSlice(32)
+ block.merkleRoot = readSlice(32)
+ block.timestamp = readUInt32()
+ block.bits = readUInt32()
+ block.nonce = readUInt32()
+
+ if (buffer.length === 80) return block
+
+ function readVarInt () {
+ var vi = varuint.decode(buffer, offset)
+ offset += varuint.decode.bytes
+ return vi
+ }
+
+ function readTransaction () {
+ var tx = Transaction.fromBuffer(buffer.slice(offset), true)
+ offset += tx.byteLength()
+ return tx
+ }
+
+ var nTransactions = readVarInt()
+ block.transactions = []
+
+ for (var i = 0; i < nTransactions; ++i) {
+ var tx = readTransaction()
+ block.transactions.push(tx)
+ }
+
+ return block
+}
+
+Block.prototype.byteLength = function (headersOnly) {
+ if (headersOnly || !this.transactions) return 80
+
+ return 80 + varuint.encodingLength(this.transactions.length) + this.transactions.reduce(function (a, x) {
+ return a + x.byteLength()
+ }, 0)
+}
+
+Block.fromHex = function (hex) {
+ return Block.fromBuffer(Buffer.from(hex, 'hex'))
+}
+
+Block.prototype.getHash = function () {
+ return bcrypto.hash256(this.toBuffer(true))
+}
+
+Block.prototype.getId = function () {
+ return this.getHash().reverse().toString('hex')
+}
+
+Block.prototype.getUTCDate = function () {
+ var date = new Date(0) // epoch
+ date.setUTCSeconds(this.timestamp)
+
+ return date
+}
+
+// TODO: buffer, offset compatibility
+Block.prototype.toBuffer = function (headersOnly) {
+ var buffer = Buffer.allocUnsafe(this.byteLength(headersOnly))
+
+ var offset = 0
+ function writeSlice (slice) {
+ slice.copy(buffer, offset)
+ offset += slice.length
+ }
+
+ function writeInt32 (i) {
+ buffer.writeInt32LE(i, offset)
+ offset += 4
+ }
+ function writeUInt32 (i) {
+ buffer.writeUInt32LE(i, offset)
+ offset += 4
+ }
+
+ writeInt32(this.version)
+ writeSlice(this.prevHash)
+ writeSlice(this.merkleRoot)
+ writeUInt32(this.timestamp)
+ writeUInt32(this.bits)
+ writeUInt32(this.nonce)
+
+ if (headersOnly || !this.transactions) return buffer
+
+ varuint.encode(this.transactions.length, buffer, offset)
+ offset += varuint.encode.bytes
+
+ this.transactions.forEach(function (tx) {
+ var txSize = tx.byteLength() // TODO: extract from toBuffer?
+ tx.toBuffer(buffer, offset)
+ offset += txSize
+ })
+
+ return buffer
+}
+
+Block.prototype.toHex = function (headersOnly) {
+ return this.toBuffer(headersOnly).toString('hex')
+}
+
+Block.calculateTarget = function (bits) {
+ var exponent = ((bits & 0xff000000) >> 24) - 3
+ var mantissa = bits & 0x007fffff
+ var target = Buffer.alloc(32, 0)
+ target.writeUInt32BE(mantissa, 28 - exponent)
+ return target
+}
+
+Block.calculateMerkleRoot = function (transactions) {
+ typeforce([{ getHash: types.Function }], transactions)
+ if (transactions.length === 0) throw TypeError('Cannot compute merkle root for zero transactions')
+
+ var hashes = transactions.map(function (transaction) {
+ return transaction.getHash()
+ })
+
+ return fastMerkleRoot(hashes, bcrypto.hash256)
+}
+
+Block.prototype.checkMerkleRoot = function () {
+ if (!this.transactions) return false
+
+ var actualMerkleRoot = Block.calculateMerkleRoot(this.transactions)
+ return this.merkleRoot.compare(actualMerkleRoot) === 0
+}
+
+Block.prototype.checkProofOfWork = function () {
+ var hash = this.getHash().reverse()
+ var target = Block.calculateTarget(this.bits)
+
+ return hash.compare(target) <= 0
+}
+
+module.exports = Block
+
+},{"./crypto":45,"./transaction":76,"./types":78,"merkle-lib/fastRoot":94,"safe-buffer":98,"typeforce":109,"varuint-bitcoin":111}],44:[function(require,module,exports){
+var pushdata = require('pushdata-bitcoin')
+var varuint = require('varuint-bitcoin')
+
+// https://github.com/feross/buffer/blob/master/index.js#L1127
+function verifuint (value, max) {
+ if (typeof value !== 'number') throw new Error('cannot write a non-number as a number')
+ if (value < 0) throw new Error('specified a negative value for writing an unsigned value')
+ if (value > max) throw new Error('RangeError: value out of range')
+ if (Math.floor(value) !== value) throw new Error('value has a fractional component')
+}
+
+function readUInt64LE (buffer, offset) {
+ var a = buffer.readUInt32LE(offset)
+ var b = buffer.readUInt32LE(offset + 4)
+ b *= 0x100000000
+
+ verifuint(b + a, 0x001fffffffffffff)
+
+ return b + a
+}
+
+function writeUInt64LE (buffer, value, offset) {
+ verifuint(value, 0x001fffffffffffff)
+
+ buffer.writeInt32LE(value & -1, offset)
+ buffer.writeUInt32LE(Math.floor(value / 0x100000000), offset + 4)
+ return offset + 8
+}
+
+// TODO: remove in 4.0.0?
+function readVarInt (buffer, offset) {
+ var result = varuint.decode(buffer, offset)
+
+ return {
+ number: result,
+ size: varuint.decode.bytes
+ }
+}
+
+// TODO: remove in 4.0.0?
+function writeVarInt (buffer, number, offset) {
+ varuint.encode(number, buffer, offset)
+ return varuint.encode.bytes
+}
+
+module.exports = {
+ pushDataSize: pushdata.encodingLength,
+ readPushDataInt: pushdata.decode,
+ readUInt64LE: readUInt64LE,
+ readVarInt: readVarInt,
+ varIntBuffer: varuint.encode,
+ varIntSize: varuint.encodingLength,
+ writePushDataInt: pushdata.encode,
+ writeUInt64LE: writeUInt64LE,
+ writeVarInt: writeVarInt
+}
+
+},{"pushdata-bitcoin":95,"varuint-bitcoin":111}],45:[function(require,module,exports){
+var createHash = require('create-hash')
+
+function ripemd160 (buffer) {
+ return createHash('rmd160').update(buffer).digest()
+}
+
+function sha1 (buffer) {
+ return createHash('sha1').update(buffer).digest()
+}
+
+function sha256 (buffer) {
+ return createHash('sha256').update(buffer).digest()
+}
+
+function hash160 (buffer) {
+ return ripemd160(sha256(buffer))
+}
+
+function hash256 (buffer) {
+ return sha256(sha256(buffer))
+}
+
+module.exports = {
+ hash160: hash160,
+ hash256: hash256,
+ ripemd160: ripemd160,
+ sha1: sha1,
+ sha256: sha256
+}
+
+},{"create-hash":82}],46:[function(require,module,exports){
+var Buffer = require('safe-buffer').Buffer
+var createHmac = require('create-hmac')
+var typeforce = require('typeforce')
+var types = require('./types')
+
+var BigInteger = require('bigi')
+var ECSignature = require('./ecsignature')
+
+var ZERO = Buffer.alloc(1, 0)
+var ONE = Buffer.alloc(1, 1)
+
+var ecurve = require('ecurve')
+var secp256k1 = ecurve.getCurveByName('secp256k1')
+
+// https://tools.ietf.org/html/rfc6979#section-3.2
+function deterministicGenerateK (hash, x, checkSig) {
+ typeforce(types.tuple(
+ types.Hash256bit,
+ types.Buffer256bit,
+ types.Function
+ ), arguments)
+
+ // Step A, ignored as hash already provided
+ // Step B
+ // Step C
+ var k = Buffer.alloc(32, 0)
+ var v = Buffer.alloc(32, 1)
+
+ // Step D
+ k = createHmac('sha256', k)
+ .update(v)
+ .update(ZERO)
+ .update(x)
+ .update(hash)
+ .digest()
+
+ // Step E
+ v = createHmac('sha256', k).update(v).digest()
+
+ // Step F
+ k = createHmac('sha256', k)
+ .update(v)
+ .update(ONE)
+ .update(x)
+ .update(hash)
+ .digest()
+
+ // Step G
+ v = createHmac('sha256', k).update(v).digest()
+
+ // Step H1/H2a, ignored as tlen === qlen (256 bit)
+ // Step H2b
+ v = createHmac('sha256', k).update(v).digest()
+
+ var T = BigInteger.fromBuffer(v)
+
+ // Step H3, repeat until T is within the interval [1, n - 1] and is suitable for ECDSA
+ while (T.signum() <= 0 || T.compareTo(secp256k1.n) >= 0 || !checkSig(T)) {
+ k = createHmac('sha256', k)
+ .update(v)
+ .update(ZERO)
+ .digest()
+
+ v = createHmac('sha256', k).update(v).digest()
+
+ // Step H1/H2a, again, ignored as tlen === qlen (256 bit)
+ // Step H2b again
+ v = createHmac('sha256', k).update(v).digest()
+ T = BigInteger.fromBuffer(v)
+ }
+
+ return T
+}
+
+var N_OVER_TWO = secp256k1.n.shiftRight(1)
+
+function sign (hash, d) {
+ typeforce(types.tuple(types.Hash256bit, types.BigInt), arguments)
+
+ var x = d.toBuffer(32)
+ var e = BigInteger.fromBuffer(hash)
+ var n = secp256k1.n
+ var G = secp256k1.G
+
+ var r, s
+ deterministicGenerateK(hash, x, function (k) {
+ var Q = G.multiply(k)
+
+ if (secp256k1.isInfinity(Q)) return false
+
+ r = Q.affineX.mod(n)
+ if (r.signum() === 0) return false
+
+ s = k.modInverse(n).multiply(e.add(d.multiply(r))).mod(n)
+ if (s.signum() === 0) return false
+
+ return true
+ })
+
+ // enforce low S values, see bip62: 'low s values in signatures'
+ if (s.compareTo(N_OVER_TWO) > 0) {
+ s = n.subtract(s)
+ }
+
+ return new ECSignature(r, s)
+}
+
+function verify (hash, signature, Q) {
+ typeforce(types.tuple(
+ types.Hash256bit,
+ types.ECSignature,
+ types.ECPoint
+ ), arguments)
+
+ var n = secp256k1.n
+ var G = secp256k1.G
+
+ var r = signature.r
+ var s = signature.s
+
+ // 1.4.1 Enforce r and s are both integers in the interval [1, n â 1]
+ if (r.signum() <= 0 || r.compareTo(n) >= 0) return false
+ if (s.signum() <= 0 || s.compareTo(n) >= 0) return false
+
+ // 1.4.2 H = Hash(M), already done by the user
+ // 1.4.3 e = H
+ var e = BigInteger.fromBuffer(hash)
+
+ // Compute s^-1
+ var sInv = s.modInverse(n)
+
+ // 1.4.4 Compute u1 = es^â1 mod n
+ // u2 = rs^â1 mod n
+ var u1 = e.multiply(sInv).mod(n)
+ var u2 = r.multiply(sInv).mod(n)
+
+ // 1.4.5 Compute R = (xR, yR)
+ // R = u1G + u2Q
+ var R = G.multiplyTwo(u1, Q, u2)
+
+ // 1.4.5 (cont.) Enforce R is not at infinity
+ if (secp256k1.isInfinity(R)) return false
+
+ // 1.4.6 Convert the field element R.x to an integer
+ var xR = R.affineX
+
+ // 1.4.7 Set v = xR mod n
+ var v = xR.mod(n)
+
+ // 1.4.8 If v = r, output "valid", and if v != r, output "invalid"
+ return v.equals(r)
+}
+
+module.exports = {
+ deterministicGenerateK: deterministicGenerateK,
+ sign: sign,
+ verify: verify,
+
+ // TODO: remove
+ __curve: secp256k1
+}
+
+},{"./ecsignature":48,"./types":78,"bigi":37,"create-hmac":85,"ecurve":89,"safe-buffer":98,"typeforce":109}],47:[function(require,module,exports){
+var baddress = require('./address')
+var bcrypto = require('./crypto')
+var ecdsa = require('./ecdsa')
+var randomBytes = require('randombytes')
+var typeforce = require('typeforce')
+var types = require('./types')
+var wif = require('wif')
+
+var NETWORKS = require('./networks')
+var BigInteger = require('bigi')
+
+var ecurve = require('ecurve')
+var secp256k1 = ecdsa.__curve
+
+function ECPair (d, Q, options) {
+ if (options) {
+ typeforce({
+ compressed: types.maybe(types.Boolean),
+ network: types.maybe(types.Network)
+ }, options)
+ }
+
+ options = options || {}
+
+ if (d) {
+ if (d.signum() <= 0) throw new Error('Private key must be greater than 0')
+ if (d.compareTo(secp256k1.n) >= 0) throw new Error('Private key must be less than the curve order')
+ if (Q) throw new TypeError('Unexpected publicKey parameter')
+
+ this.d = d
+ } else {
+ typeforce(types.ECPoint, Q)
+
+ this.__Q = Q
+ }
+
+ this.compressed = options.compressed === undefined ? true : options.compressed
+ this.network = options.network || NETWORKS.bitcoin
+}
+
+Object.defineProperty(ECPair.prototype, 'Q', {
+ get: function () {
+ if (!this.__Q && this.d) {
+ this.__Q = secp256k1.G.multiply(this.d)
+ }
+
+ return this.__Q
+ }
+})
+
+ECPair.fromPublicKeyBuffer = function (buffer, network) {
+ var Q = ecurve.Point.decodeFrom(secp256k1, buffer)
+
+ return new ECPair(null, Q, {
+ compressed: Q.compressed,
+ network: network
+ })
+}
+
+ECPair.fromWIF = function (string, network) {
+ var decoded = wif.decode(string)
+ var version = decoded.version
+
+ // list of networks?
+ if (types.Array(network)) {
+ network = network.filter(function (x) {
+ return version === x.wif
+ }).pop()
+
+ if (!network) throw new Error('Unknown network version')
+
+ // otherwise, assume a network object (or default to bitcoin)
+ } else {
+ network = network || NETWORKS.bitcoin
+
+ if (version !== network.wif) throw new Error('Invalid network version')
+ }
+
+ var d = BigInteger.fromBuffer(decoded.privateKey)
+
+ return new ECPair(d, null, {
+ compressed: decoded.compressed,
+ network: network
+ })
+}
+
+ECPair.makeRandom = function (options) {
+ options = options || {}
+
+ var rng = options.rng || randomBytes
+
+ var d
+ do {
+ var buffer = rng(32)
+ typeforce(types.Buffer256bit, buffer)
+
+ d = BigInteger.fromBuffer(buffer)
+ } while (d.signum() <= 0 || d.compareTo(secp256k1.n) >= 0)
+
+ return new ECPair(d, null, options)
+}
+
+ECPair.prototype.getAddress = function () {
+ return baddress.toBase58Check(bcrypto.hash160(this.getPublicKeyBuffer()), this.getNetwork().pubKeyHash)
+}
+
+ECPair.prototype.getNetwork = function () {
+ return this.network
+}
+
+ECPair.prototype.getPublicKeyBuffer = function () {
+ return this.Q.getEncoded(this.compressed)
+}
+
+ECPair.prototype.sign = function (hash) {
+ if (!this.d) throw new Error('Missing private key')
+
+ return ecdsa.sign(hash, this.d)
+}
+
+ECPair.prototype.toWIF = function () {
+ if (!this.d) throw new Error('Missing private key')
+
+ return wif.encode(this.network.wif, this.d.toBuffer(32), this.compressed)
+}
+
+ECPair.prototype.verify = function (hash, signature) {
+ return ecdsa.verify(hash, signature, this.Q)
+}
+
+module.exports = ECPair
+
+},{"./address":42,"./crypto":45,"./ecdsa":46,"./networks":51,"./types":78,"bigi":37,"ecurve":89,"randombytes":96,"typeforce":109,"wif":112}],48:[function(require,module,exports){
+(function (Buffer){
+var bip66 = require('bip66')
+var typeforce = require('typeforce')
+var types = require('./types')
+
+var BigInteger = require('bigi')
+
+function ECSignature (r, s) {
+ typeforce(types.tuple(types.BigInt, types.BigInt), arguments)
+
+ this.r = r
+ this.s = s
+}
+
+ECSignature.parseCompact = function (buffer) {
+ if (buffer.length !== 65) throw new Error('Invalid signature length')
+
+ var flagByte = buffer.readUInt8(0) - 27
+ if (flagByte !== (flagByte & 7)) throw new Error('Invalid signature parameter')
+
+ var compressed = !!(flagByte & 4)
+ var recoveryParam = flagByte & 3
+
+ var r = BigInteger.fromBuffer(buffer.slice(1, 33))
+ var s = BigInteger.fromBuffer(buffer.slice(33))
+
+ return {
+ compressed: compressed,
+ i: recoveryParam,
+ signature: new ECSignature(r, s)
+ }
+}
+
+ECSignature.fromDER = function (buffer) {
+ var decode = bip66.decode(buffer)
+ var r = BigInteger.fromDERInteger(decode.r)
+ var s = BigInteger.fromDERInteger(decode.s)
+
+ return new ECSignature(r, s)
+}
+
+// BIP62: 1 byte hashType flag (only 0x01, 0x02, 0x03, 0x81, 0x82 and 0x83 are allowed)
+ECSignature.parseScriptSignature = function (buffer) {
+ var hashType = buffer.readUInt8(buffer.length - 1)
+ var hashTypeMod = hashType & ~0x80
+
+ if (hashTypeMod <= 0x00 || hashTypeMod >= 0x04) throw new Error('Invalid hashType ' + hashType)
+
+ return {
+ signature: ECSignature.fromDER(buffer.slice(0, -1)),
+ hashType: hashType
+ }
+}
+
+ECSignature.prototype.toCompact = function (i, compressed) {
+ if (compressed) {
+ i += 4
+ }
+
+ i += 27
+
+ var buffer = Buffer.alloc(65)
+ buffer.writeUInt8(i, 0)
+ this.r.toBuffer(32).copy(buffer, 1)
+ this.s.toBuffer(32).copy(buffer, 33)
+
+ return buffer
+}
+
+ECSignature.prototype.toDER = function () {
+ var r = Buffer.from(this.r.toDERInteger())
+ var s = Buffer.from(this.s.toDERInteger())
+
+ return bip66.encode(r, s)
+}
+
+ECSignature.prototype.toScriptSignature = function (hashType) {
+ var hashTypeMod = hashType & ~0x80
+ if (hashTypeMod <= 0 || hashTypeMod >= 4) throw new Error('Invalid hashType ' + hashType)
+
+ var hashTypeBuffer = Buffer.alloc(1)
+ hashTypeBuffer.writeUInt8(hashType, 0)
+
+ return Buffer.concat([this.toDER(), hashTypeBuffer])
+}
+
+module.exports = ECSignature
+
+}).call(this,require("buffer").Buffer)
+},{"./types":78,"bigi":37,"bip66":39,"buffer":4,"typeforce":109}],49:[function(require,module,exports){
+var Buffer = require('safe-buffer').Buffer
+var base58check = require('bs58check')
+var bcrypto = require('./crypto')
+var createHmac = require('create-hmac')
+var typeforce = require('typeforce')
+var types = require('./types')
+var NETWORKS = require('./networks')
+
+var BigInteger = require('bigi')
+var ECPair = require('./ecpair')
+
+var ecurve = require('ecurve')
+var curve = ecurve.getCurveByName('secp256k1')
+
+function HDNode (keyPair, chainCode) {
+ typeforce(types.tuple('ECPair', types.Buffer256bit), arguments)
+
+ if (!keyPair.compressed) throw new TypeError('BIP32 only allows compressed keyPairs')
+
+ this.keyPair = keyPair
+ this.chainCode = chainCode
+ this.depth = 0
+ this.index = 0
+ this.parentFingerprint = 0x00000000
+}
+
+HDNode.HIGHEST_BIT = 0x80000000
+HDNode.LENGTH = 78
+HDNode.MASTER_SECRET = Buffer.from('Bitcoin seed', 'utf8')
+
+HDNode.fromSeedBuffer = function (seed, network) {
+ typeforce(types.tuple(types.Buffer, types.maybe(types.Network)), arguments)
+
+ if (seed.length < 16) throw new TypeError('Seed should be at least 128 bits')
+ if (seed.length > 64) throw new TypeError('Seed should be at most 512 bits')
+
+ var I = createHmac('sha512', HDNode.MASTER_SECRET).update(seed).digest()
+ var IL = I.slice(0, 32)
+ var IR = I.slice(32)
+
+ // In case IL is 0 or >= n, the master key is invalid
+ // This is handled by the ECPair constructor
+ var pIL = BigInteger.fromBuffer(IL)
+ var keyPair = new ECPair(pIL, null, {
+ network: network
+ })
+
+ return new HDNode(keyPair, IR)
+}
+
+HDNode.fromSeedHex = function (hex, network) {
+ return HDNode.fromSeedBuffer(Buffer.from(hex, 'hex'), network)
+}
+
+HDNode.fromBase58 = function (string, networks) {
+ var buffer = base58check.decode(string)
+ if (buffer.length !== 78) throw new Error('Invalid buffer length')
+
+ // 4 bytes: version bytes
+ var version = buffer.readUInt32BE(0)
+ var network
+
+ // list of networks?
+ if (Array.isArray(networks)) {
+ network = networks.filter(function (x) {
+ return version === x.bip32.private ||
+ version === x.bip32.public
+ }).pop()
+
+ if (!network) throw new Error('Unknown network version')
+
+ // otherwise, assume a network object (or default to bitcoin)
+ } else {
+ network = networks || NETWORKS.bitcoin
+ }
+
+ if (version !== network.bip32.private &&
+ version !== network.bip32.public) throw new Error('Invalid network version')
+
+ // 1 byte: depth: 0x00 for master nodes, 0x01 for level-1 descendants, ...
+ var depth = buffer[4]
+
+ // 4 bytes: the fingerprint of the parent's key (0x00000000 if master key)
+ var parentFingerprint = buffer.readUInt32BE(5)
+ if (depth === 0) {
+ if (parentFingerprint !== 0x00000000) throw new Error('Invalid parent fingerprint')
+ }
+
+ // 4 bytes: child number. This is the number i in xi = xpar/i, with xi the key being serialized.
+ // This is encoded in MSB order. (0x00000000 if master key)
+ var index = buffer.readUInt32BE(9)
+ if (depth === 0 && index !== 0) throw new Error('Invalid index')
+
+ // 32 bytes: the chain code
+ var chainCode = buffer.slice(13, 45)
+ var keyPair
+
+ // 33 bytes: private key data (0x00 + k)
+ if (version === network.bip32.private) {
+ if (buffer.readUInt8(45) !== 0x00) throw new Error('Invalid private key')
+
+ var d = BigInteger.fromBuffer(buffer.slice(46, 78))
+ keyPair = new ECPair(d, null, { network: network })
+
+ // 33 bytes: public key data (0x02 + X or 0x03 + X)
+ } else {
+ var Q = ecurve.Point.decodeFrom(curve, buffer.slice(45, 78))
+ // Q.compressed is assumed, if somehow this assumption is broken, `new HDNode` will throw
+
+ // Verify that the X coordinate in the public point corresponds to a point on the curve.
+ // If not, the extended public key is invalid.
+ curve.validate(Q)
+
+ keyPair = new ECPair(null, Q, { network: network })
+ }
+
+ var hd = new HDNode(keyPair, chainCode)
+ hd.depth = depth
+ hd.index = index
+ hd.parentFingerprint = parentFingerprint
+
+ return hd
+}
+
+HDNode.prototype.getAddress = function () {
+ return this.keyPair.getAddress()
+}
+
+HDNode.prototype.getIdentifier = function () {
+ return bcrypto.hash160(this.keyPair.getPublicKeyBuffer())
+}
+
+HDNode.prototype.getFingerprint = function () {
+ return this.getIdentifier().slice(0, 4)
+}
+
+HDNode.prototype.getNetwork = function () {
+ return this.keyPair.getNetwork()
+}
+
+HDNode.prototype.getPublicKeyBuffer = function () {
+ return this.keyPair.getPublicKeyBuffer()
+}
+
+HDNode.prototype.neutered = function () {
+ var neuteredKeyPair = new ECPair(null, this.keyPair.Q, {
+ network: this.keyPair.network
+ })
+
+ var neutered = new HDNode(neuteredKeyPair, this.chainCode)
+ neutered.depth = this.depth
+ neutered.index = this.index
+ neutered.parentFingerprint = this.parentFingerprint
+
+ return neutered
+}
+
+HDNode.prototype.sign = function (hash) {
+ return this.keyPair.sign(hash)
+}
+
+HDNode.prototype.verify = function (hash, signature) {
+ return this.keyPair.verify(hash, signature)
+}
+
+HDNode.prototype.toBase58 = function (__isPrivate) {
+ if (__isPrivate !== undefined) throw new TypeError('Unsupported argument in 2.0.0')
+
+ // Version
+ var network = this.keyPair.network
+ var version = (!this.isNeutered()) ? network.bip32.private : network.bip32.public
+ var buffer = Buffer.allocUnsafe(78)
+
+ // 4 bytes: version bytes
+ buffer.writeUInt32BE(version, 0)
+
+ // 1 byte: depth: 0x00 for master nodes, 0x01 for level-1 descendants, ....
+ buffer.writeUInt8(this.depth, 4)
+
+ // 4 bytes: the fingerprint of the parent's key (0x00000000 if master key)
+ buffer.writeUInt32BE(this.parentFingerprint, 5)
+
+ // 4 bytes: child number. This is the number i in xi = xpar/i, with xi the key being serialized.
+ // This is encoded in big endian. (0x00000000 if master key)
+ buffer.writeUInt32BE(this.index, 9)
+
+ // 32 bytes: the chain code
+ this.chainCode.copy(buffer, 13)
+
+ // 33 bytes: the public key or private key data
+ if (!this.isNeutered()) {
+ // 0x00 + k for private keys
+ buffer.writeUInt8(0, 45)
+ this.keyPair.d.toBuffer(32).copy(buffer, 46)
+
+ // 33 bytes: the public key
+ } else {
+ // X9.62 encoding for public keys
+ this.keyPair.getPublicKeyBuffer().copy(buffer, 45)
+ }
+
+ return base58check.encode(buffer)
+}
+
+// https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#child-key-derivation-ckd-functions
+HDNode.prototype.derive = function (index) {
+ typeforce(types.UInt32, index)
+
+ var isHardened = index >= HDNode.HIGHEST_BIT
+ var data = Buffer.allocUnsafe(37)
+
+ // Hardened child
+ if (isHardened) {
+ if (this.isNeutered()) throw new TypeError('Could not derive hardened child key')
+
+ // data = 0x00 || ser256(kpar) || ser32(index)
+ data[0] = 0x00
+ this.keyPair.d.toBuffer(32).copy(data, 1)
+ data.writeUInt32BE(index, 33)
+
+ // Normal child
+ } else {
+ // data = serP(point(kpar)) || ser32(index)
+ // = serP(Kpar) || ser32(index)
+ this.keyPair.getPublicKeyBuffer().copy(data, 0)
+ data.writeUInt32BE(index, 33)
+ }
+
+ var I = createHmac('sha512', this.chainCode).update(data).digest()
+ var IL = I.slice(0, 32)
+ var IR = I.slice(32)
+
+ var pIL = BigInteger.fromBuffer(IL)
+
+ // In case parse256(IL) >= n, proceed with the next value for i
+ if (pIL.compareTo(curve.n) >= 0) {
+ return this.derive(index + 1)
+ }
+
+ // Private parent key -> private child key
+ var derivedKeyPair
+ if (!this.isNeutered()) {
+ // ki = parse256(IL) + kpar (mod n)
+ var ki = pIL.add(this.keyPair.d).mod(curve.n)
+
+ // In case ki == 0, proceed with the next value for i
+ if (ki.signum() === 0) {
+ return this.derive(index + 1)
+ }
+
+ derivedKeyPair = new ECPair(ki, null, {
+ network: this.keyPair.network
+ })
+
+ // Public parent key -> public child key
+ } else {
+ // Ki = point(parse256(IL)) + Kpar
+ // = G*IL + Kpar
+ var Ki = curve.G.multiply(pIL).add(this.keyPair.Q)
+
+ // In case Ki is the point at infinity, proceed with the next value for i
+ if (curve.isInfinity(Ki)) {
+ return this.derive(index + 1)
+ }
+
+ derivedKeyPair = new ECPair(null, Ki, {
+ network: this.keyPair.network
+ })
+ }
+
+ var hd = new HDNode(derivedKeyPair, IR)
+ hd.depth = this.depth + 1
+ hd.index = index
+ hd.parentFingerprint = this.getFingerprint().readUInt32BE(0)
+
+ return hd
+}
+
+HDNode.prototype.deriveHardened = function (index) {
+ typeforce(types.UInt31, index)
+
+ // Only derives hardened private keys by default
+ return this.derive(index + HDNode.HIGHEST_BIT)
+}
+
+// Private === not neutered
+// Public === neutered
+HDNode.prototype.isNeutered = function () {
+ return !(this.keyPair.d)
+}
+
+HDNode.prototype.derivePath = function (path) {
+ typeforce(types.BIP32Path, path)
+
+ var splitPath = path.split('/')
+ if (splitPath[0] === 'm') {
+ if (this.parentFingerprint) {
+ throw new Error('Not a master node')
+ }
+
+ splitPath = splitPath.slice(1)
+ }
+
+ return splitPath.reduce(function (prevHd, indexStr) {
+ var index
+ if (indexStr.slice(-1) === "'") {
+ index = parseInt(indexStr.slice(0, -1), 10)
+ return prevHd.deriveHardened(index)
+ } else {
+ index = parseInt(indexStr, 10)
+ return prevHd.derive(index)
+ }
+ }, this)
+}
+
+module.exports = HDNode
+
+},{"./crypto":45,"./ecpair":47,"./networks":51,"./types":78,"bigi":37,"bs58check":80,"create-hmac":85,"ecurve":89,"safe-buffer":98,"typeforce":109}],50:[function(require,module,exports){
+module.exports = {
+ Block: require('./block'),
+ ECPair: require('./ecpair'),
+ ECSignature: require('./ecsignature'),
+ HDNode: require('./hdnode'),
+ Transaction: require('./transaction'),
+ TransactionBuilder: require('./transaction_builder'),
+
+ address: require('./address'),
+ bufferutils: require('./bufferutils'), // TODO: remove in 4.0.0
+ crypto: require('./crypto'),
+ networks: require('./networks'),
+ opcodes: require('bitcoin-ops'),
+ script: require('./script')
+}
+
+},{"./address":42,"./block":43,"./bufferutils":44,"./crypto":45,"./ecpair":47,"./ecsignature":48,"./hdnode":49,"./networks":51,"./script":52,"./transaction":76,"./transaction_builder":77,"bitcoin-ops":40}],51:[function(require,module,exports){
+// https://en.bitcoin.it/wiki/List_of_address_prefixes
+// Dogecoin BIP32 is a proposed standard: https://bitcointalk.org/index.php?topic=409731
+
+module.exports = {
+ bitcoin: {
+ messagePrefix: '\x18Bitcoin Signed Message:\n',
+ bip32: {
+ public: 0x0488b21e,
+ private: 0x0488ade4
+ },
+ pubKeyHash: 0x00,
+ scriptHash: 0x05,
+ wif: 0x80
+ },
+ testnet: {
+ messagePrefix: '\x18Bitcoin Signed Message:\n',
+ bip32: {
+ public: 0x043587cf,
+ private: 0x04358394
+ },
+ pubKeyHash: 0x6f,
+ scriptHash: 0xc4,
+ wif: 0xef
+ },
+ litecoin: {
+ messagePrefix: '\x19Litecoin Signed Message:\n',
+ bip32: {
+ public: 0x019da462,
+ private: 0x019d9cfe
+ },
+ pubKeyHash: 0x30,
+ scriptHash: 0x32,
+ wif: 0xb0
+ }
+}
+
+},{}],52:[function(require,module,exports){
+var Buffer = require('safe-buffer').Buffer
+var bip66 = require('bip66')
+var pushdata = require('pushdata-bitcoin')
+var typeforce = require('typeforce')
+var types = require('./types')
+var scriptNumber = require('./script_number')
+
+var OPS = require('bitcoin-ops')
+var REVERSE_OPS = require('bitcoin-ops/map')
+var OP_INT_BASE = OPS.OP_RESERVED // OP_1 - 1
+
+function isOPInt (value) {
+ return types.Number(value) &&
+ ((value === OPS.OP_0) ||
+ (value >= OPS.OP_1 && value <= OPS.OP_16) ||
+ (value === OPS.OP_1NEGATE))
+}
+
+function isPushOnlyChunk (value) {
+ return types.Buffer(value) || isOPInt(value)
+}
+
+function isPushOnly (value) {
+ return types.Array(value) && value.every(isPushOnlyChunk)
+}
+
+function compile (chunks) {
+ // TODO: remove me
+ if (Buffer.isBuffer(chunks)) return chunks
+
+ typeforce(types.Array, chunks)
+
+ var bufferSize = chunks.reduce(function (accum, chunk) {
+ // data chunk
+ if (Buffer.isBuffer(chunk)) {
+ // adhere to BIP62.3, minimal push policy
+ if (chunk.length === 1 && (chunk[0] === 0x81 || (chunk[0] >= 1 && chunk[0] <= 16))) {
+ return accum + 1
+ }
+
+ return accum + pushdata.encodingLength(chunk.length) + chunk.length
+ }
+
+ // opcode
+ return accum + 1
+ }, 0.0)
+
+ var buffer = Buffer.allocUnsafe(bufferSize)
+ var offset = 0
+
+ chunks.forEach(function (chunk) {
+ // data chunk
+ if (Buffer.isBuffer(chunk)) {
+ // adhere to BIP62.3, minimal push policy
+ if (chunk.length === 1 && chunk[0] >= 1 && chunk[0] <= 16) {
+ var opcode = OP_INT_BASE + chunk[0]
+ buffer.writeUInt8(opcode, offset)
+ offset += 1
+ return
+ }
+
+ if (chunk.length === 1 && chunk[0] === 0x81) {
+ buffer.writeUInt8(OPS.OP_1NEGATE, offset)
+ offset += 1
+ return
+ }
+
+ offset += pushdata.encode(buffer, chunk.length, offset)
+
+ chunk.copy(buffer, offset)
+ offset += chunk.length
+
+ // opcode
+ } else {
+ buffer.writeUInt8(chunk, offset)
+ offset += 1
+ }
+ })
+
+ if (offset !== buffer.length) throw new Error('Could not decode chunks')
+ return buffer
+}
+
+function decompile (buffer) {
+ // TODO: remove me
+ if (types.Array(buffer)) return buffer
+
+ typeforce(types.Buffer, buffer)
+
+ var chunks = []
+ var i = 0
+
+ while (i < buffer.length) {
+ var opcode = buffer[i]
+
+ // data chunk
+ if ((opcode > OPS.OP_0) && (opcode <= OPS.OP_PUSHDATA4)) {
+ var d = pushdata.decode(buffer, i)
+
+ // did reading a pushDataInt fail? empty script
+ if (d === null) return []
+ i += d.size
+
+ // attempt to read too much data? empty script
+ if (i + d.number > buffer.length) return []
+
+ var data = buffer.slice(i, i + d.number)
+ i += d.number
+
+ chunks.push(data)
+
+ // opcode
+ } else {
+ chunks.push(opcode)
+
+ i += 1
+ }
+ }
+
+ return chunks
+}
+
+function toASM (chunks) {
+ if (Buffer.isBuffer(chunks)) {
+ chunks = decompile(chunks)
+ }
+
+ return chunks.map(function (chunk) {
+ // data?
+ if (Buffer.isBuffer(chunk)) return chunk.toString('hex')
+
+ // opcode!
+ return REVERSE_OPS[chunk]
+ }).join(' ')
+}
+
+function fromASM (asm) {
+ typeforce(types.String, asm)
+
+ return compile(asm.split(' ').map(function (chunkStr) {
+ // opcode?
+ if (OPS[chunkStr] !== undefined) return OPS[chunkStr]
+ typeforce(types.Hex, chunkStr)
+
+ // data!
+ return Buffer.from(chunkStr, 'hex')
+ }))
+}
+
+function toStack (chunks) {
+ chunks = decompile(chunks)
+ typeforce(isPushOnly, chunks)
+
+ return chunks.map(function (op) {
+ if (Buffer.isBuffer(op)) return op
+ if (op === OPS.OP_0) return Buffer.allocUnsafe(0)
+
+ return scriptNumber.encode(op - OP_INT_BASE)
+ })
+}
+
+function isCanonicalPubKey (buffer) {
+ if (!Buffer.isBuffer(buffer)) return false
+ if (buffer.length < 33) return false
+
+ switch (buffer[0]) {
+ case 0x02:
+ case 0x03:
+ return buffer.length === 33
+ case 0x04:
+ return buffer.length === 65
+ }
+
+ return false
+}
+
+function isDefinedHashType (hashType) {
+ var hashTypeMod = hashType & ~0x80
+
+// return hashTypeMod > SIGHASH_ALL && hashTypeMod < SIGHASH_SINGLE
+ return hashTypeMod > 0x00 && hashTypeMod < 0x04
+}
+
+function isCanonicalSignature (buffer) {
+ if (!Buffer.isBuffer(buffer)) return false
+ if (!isDefinedHashType(buffer[buffer.length - 1])) return false
+
+ return bip66.check(buffer.slice(0, -1))
+}
+
+module.exports = {
+ compile: compile,
+ decompile: decompile,
+ fromASM: fromASM,
+ toASM: toASM,
+ toStack: toStack,
+
+ number: require('./script_number'),
+
+ isCanonicalPubKey: isCanonicalPubKey,
+ isCanonicalSignature: isCanonicalSignature,
+ isPushOnly: isPushOnly,
+ isDefinedHashType: isDefinedHashType
+}
+
+var templates = require('./templates')
+for (var key in templates) {
+ module.exports[key] = templates[key]
+}
+
+},{"./script_number":53,"./templates":54,"./types":78,"bip66":39,"bitcoin-ops":40,"bitcoin-ops/map":41,"pushdata-bitcoin":95,"safe-buffer":98,"typeforce":109}],53:[function(require,module,exports){
+var Buffer = require('safe-buffer').Buffer
+
+function decode (buffer, maxLength, minimal) {
+ maxLength = maxLength || 4
+ minimal = minimal === undefined ? true : minimal
+
+ var length = buffer.length
+ if (length === 0) return 0
+ if (length > maxLength) throw new TypeError('Script number overflow')
+ if (minimal) {
+ if ((buffer[length - 1] & 0x7f) === 0) {
+ if (length <= 1 || (buffer[length - 2] & 0x80) === 0) throw new Error('Non-minimally encoded script number')
+ }
+ }
+
+ // 40-bit
+ if (length === 5) {
+ var a = buffer.readUInt32LE(0)
+ var b = buffer.readUInt8(4)
+
+ if (b & 0x80) return -(((b & ~0x80) * 0x100000000) + a)
+ return (b * 0x100000000) + a
+ }
+
+ var result = 0
+
+ // 32-bit / 24-bit / 16-bit / 8-bit
+ for (var i = 0; i < length; ++i) {
+ result |= buffer[i] << (8 * i)
+ }
+
+ if (buffer[length - 1] & 0x80) return -(result & ~(0x80 << (8 * (length - 1))))
+ return result
+}
+
+function scriptNumSize (i) {
+ return i > 0x7fffffff ? 5
+ : i > 0x7fffff ? 4
+ : i > 0x7fff ? 3
+ : i > 0x7f ? 2
+ : i > 0x00 ? 1
+ : 0
+}
+
+function encode (number) {
+ var value = Math.abs(number)
+ var size = scriptNumSize(value)
+ var buffer = Buffer.allocUnsafe(size)
+ var negative = number < 0
+
+ for (var i = 0; i < size; ++i) {
+ buffer.writeUInt8(value & 0xff, i)
+ value >>= 8
+ }
+
+ if (buffer[size - 1] & 0x80) {
+ buffer.writeUInt8(negative ? 0x80 : 0x00, size - 1)
+ } else if (negative) {
+ buffer[size - 1] |= 0x80
+ }
+
+ return buffer
+}
+
+module.exports = {
+ decode: decode,
+ encode: encode
+}
+
+},{"safe-buffer":98}],54:[function(require,module,exports){
+var decompile = require('../script').decompile
+var multisig = require('./multisig')
+var nullData = require('./nulldata')
+var pubKey = require('./pubkey')
+var pubKeyHash = require('./pubkeyhash')
+var scriptHash = require('./scripthash')
+var witnessPubKeyHash = require('./witnesspubkeyhash')
+var witnessScriptHash = require('./witnessscripthash')
+var witnessCommitment = require('./witnesscommitment')
+
+var types = {
+ MULTISIG: 'multisig',
+ NONSTANDARD: 'nonstandard',
+ NULLDATA: 'nulldata',
+ P2PK: 'pubkey',
+ P2PKH: 'pubkeyhash',
+ P2SH: 'scripthash',
+ P2WPKH: 'witnesspubkeyhash',
+ P2WSH: 'witnessscripthash',
+ WITNESS_COMMITMENT: 'witnesscommitment'
+}
+
+function classifyOutput (script) {
+ if (witnessPubKeyHash.output.check(script)) return types.P2WPKH
+ if (witnessScriptHash.output.check(script)) return types.P2WSH
+ if (pubKeyHash.output.check(script)) return types.P2PKH
+ if (scriptHash.output.check(script)) return types.P2SH
+
+ // XXX: optimization, below functions .decompile before use
+ var chunks = decompile(script)
+ if (multisig.output.check(chunks)) return types.MULTISIG
+ if (pubKey.output.check(chunks)) return types.P2PK
+ if (witnessCommitment.output.check(chunks)) return types.WITNESS_COMMITMENT
+ if (nullData.output.check(chunks)) return types.NULLDATA
+
+ return types.NONSTANDARD
+}
+
+function classifyInput (script, allowIncomplete) {
+ // XXX: optimization, below functions .decompile before use
+ var chunks = decompile(script)
+
+ if (pubKeyHash.input.check(chunks)) return types.P2PKH
+ if (scriptHash.input.check(chunks, allowIncomplete)) return types.P2SH
+ if (multisig.input.check(chunks, allowIncomplete)) return types.MULTISIG
+ if (pubKey.input.check(chunks)) return types.P2PK
+
+ return types.NONSTANDARD
+}
+
+function classifyWitness (script, allowIncomplete) {
+ // XXX: optimization, below functions .decompile before use
+ var chunks = decompile(script)
+
+ if (witnessPubKeyHash.input.check(chunks)) return types.P2WPKH
+ if (witnessScriptHash.input.check(chunks, allowIncomplete)) return types.P2WSH
+
+ return types.NONSTANDARD
+}
+
+module.exports = {
+ classifyInput: classifyInput,
+ classifyOutput: classifyOutput,
+ classifyWitness: classifyWitness,
+ multisig: multisig,
+ nullData: nullData,
+ pubKey: pubKey,
+ pubKeyHash: pubKeyHash,
+ scriptHash: scriptHash,
+ witnessPubKeyHash: witnessPubKeyHash,
+ witnessScriptHash: witnessScriptHash,
+ witnessCommitment: witnessCommitment,
+ types: types
+}
+
+},{"../script":52,"./multisig":55,"./nulldata":58,"./pubkey":59,"./pubkeyhash":62,"./scripthash":65,"./witnesscommitment":68,"./witnesspubkeyhash":70,"./witnessscripthash":73}],55:[function(require,module,exports){
+module.exports = {
+ input: require('./input'),
+ output: require('./output')
+}
+
+},{"./input":56,"./output":57}],56:[function(require,module,exports){
+// OP_0 [signatures ...]
+
+var Buffer = require('safe-buffer').Buffer
+var bscript = require('../../script')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
+
+function partialSignature (value) {
+ return value === OPS.OP_0 || bscript.isCanonicalSignature(value)
+}
+
+function check (script, allowIncomplete) {
+ var chunks = bscript.decompile(script)
+ if (chunks.length < 2) return false
+ if (chunks[0] !== OPS.OP_0) return false
+
+ if (allowIncomplete) {
+ return chunks.slice(1).every(partialSignature)
+ }
+
+ return chunks.slice(1).every(bscript.isCanonicalSignature)
+}
+check.toJSON = function () { return 'multisig input' }
+
+var EMPTY_BUFFER = Buffer.allocUnsafe(0)
+
+function encodeStack (signatures, scriptPubKey) {
+ typeforce([partialSignature], signatures)
+
+ if (scriptPubKey) {
+ var scriptData = bscript.multisig.output.decode(scriptPubKey)
+
+ if (signatures.length < scriptData.m) {
+ throw new TypeError('Not enough signatures provided')
+ }
+
+ if (signatures.length > scriptData.pubKeys.length) {
+ throw new TypeError('Too many signatures provided')
+ }
+ }
+
+ return [].concat(EMPTY_BUFFER, signatures)
+}
+
+function encode (signatures, scriptPubKey) {
+ return bscript.compile(encodeStack(signatures, scriptPubKey))
+}
+
+function decodeStack (stack, allowIncomplete) {
+ typeforce(check, stack, allowIncomplete)
+ return stack.slice(1)
+}
+
+function decode (buffer, allowIncomplete) {
+ var stack = bscript.decompile(buffer)
+ return decodeStack(stack, allowIncomplete)
+}
+
+module.exports = {
+ check: check,
+ decode: decode,
+ decodeStack: decodeStack,
+ encode: encode,
+ encodeStack: encodeStack
+}
+
+},{"../../script":52,"bitcoin-ops":40,"safe-buffer":98,"typeforce":109}],57:[function(require,module,exports){
+// m [pubKeys ...] n OP_CHECKMULTISIG
+
+var bscript = require('../../script')
+var types = require('../../types')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
+var OP_INT_BASE = OPS.OP_RESERVED // OP_1 - 1
+
+function check (script, allowIncomplete) {
+ var chunks = bscript.decompile(script)
+
+ if (chunks.length < 4) return false
+ if (chunks[chunks.length - 1] !== OPS.OP_CHECKMULTISIG) return false
+ if (!types.Number(chunks[0])) return false
+ if (!types.Number(chunks[chunks.length - 2])) return false
+ var m = chunks[0] - OP_INT_BASE
+ var n = chunks[chunks.length - 2] - OP_INT_BASE
+
+ if (m <= 0) return false
+ if (n > 16) return false
+ if (m > n) return false
+ if (n !== chunks.length - 3) return false
+ if (allowIncomplete) return true
+
+ var keys = chunks.slice(1, -2)
+ return keys.every(bscript.isCanonicalPubKey)
+}
+check.toJSON = function () { return 'multi-sig output' }
+
+function encode (m, pubKeys) {
+ typeforce({
+ m: types.Number,
+ pubKeys: [bscript.isCanonicalPubKey]
+ }, {
+ m: m,
+ pubKeys: pubKeys
+ })
+
+ var n = pubKeys.length
+ if (n < m) throw new TypeError('Not enough pubKeys provided')
+
+ return bscript.compile([].concat(
+ OP_INT_BASE + m,
+ pubKeys,
+ OP_INT_BASE + n,
+ OPS.OP_CHECKMULTISIG
+ ))
+}
+
+function decode (buffer, allowIncomplete) {
+ var chunks = bscript.decompile(buffer)
+ typeforce(check, chunks, allowIncomplete)
+
+ return {
+ m: chunks[0] - OP_INT_BASE,
+ pubKeys: chunks.slice(1, -2)
+ }
+}
+
+module.exports = {
+ check: check,
+ decode: decode,
+ encode: encode
+}
+
+},{"../../script":52,"../../types":78,"bitcoin-ops":40,"typeforce":109}],58:[function(require,module,exports){
+// OP_RETURN {data}
+
+var bscript = require('../script')
+var types = require('../types')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
+
+function check (script) {
+ var buffer = bscript.compile(script)
+
+ return buffer.length > 1 &&
+ buffer[0] === OPS.OP_RETURN
+}
+check.toJSON = function () { return 'null data output' }
+
+function encode (data) {
+ typeforce(types.Buffer, data)
+
+ return bscript.compile([OPS.OP_RETURN, data])
+}
+
+function decode (buffer) {
+ typeforce(check, buffer)
+
+ return buffer.slice(2)
+}
+
+module.exports = {
+ output: {
+ check: check,
+ decode: decode,
+ encode: encode
+ }
+}
+
+},{"../script":52,"../types":78,"bitcoin-ops":40,"typeforce":109}],59:[function(require,module,exports){
+arguments[4][55][0].apply(exports,arguments)
+},{"./input":60,"./output":61,"dup":55}],60:[function(require,module,exports){
+// {signature}
+
+var bscript = require('../../script')
+var types = require('../../types')
+var typeforce = require('typeforce')
+
+function check (script) {
+ var chunks = bscript.decompile(script)
+
+ return chunks.length === 1 &&
+ bscript.isCanonicalSignature(chunks[0])
+}
+check.toJSON = function () { return 'pubKey input' }
+
+function encodeStack (signature) {
+ typeforce(types.Buffer, signature)
+ return [signature]
+}
+
+function encode (signature) {
+ return bscript.compile(encodeStack(signature))
+}
+
+function decodeStack (stack) {
+ typeforce(check, stack)
+ return stack[0]
+}
+
+function decode (buffer) {
+ var stack = bscript.decompile(buffer)
+ return decodeStack(stack)
+}
+
+module.exports = {
+ check: check,
+ decode: decode,
+ decodeStack: decodeStack,
+ encode: encode,
+ encodeStack: encodeStack
+}
+
+},{"../../script":52,"../../types":78,"typeforce":109}],61:[function(require,module,exports){
+// {pubKey} OP_CHECKSIG
+
+var bscript = require('../../script')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
+
+function check (script) {
+ var chunks = bscript.decompile(script)
+
+ return chunks.length === 2 &&
+ bscript.isCanonicalPubKey(chunks[0]) &&
+ chunks[1] === OPS.OP_CHECKSIG
+}
+check.toJSON = function () { return 'pubKey output' }
+
+function encode (pubKey) {
+ typeforce(bscript.isCanonicalPubKey, pubKey)
+
+ return bscript.compile([pubKey, OPS.OP_CHECKSIG])
+}
+
+function decode (buffer) {
+ var chunks = bscript.decompile(buffer)
+ typeforce(check, chunks)
+
+ return chunks[0]
+}
+
+module.exports = {
+ check: check,
+ decode: decode,
+ encode: encode
+}
+
+},{"../../script":52,"bitcoin-ops":40,"typeforce":109}],62:[function(require,module,exports){
+arguments[4][55][0].apply(exports,arguments)
+},{"./input":63,"./output":64,"dup":55}],63:[function(require,module,exports){
+// {signature} {pubKey}
+
+var bscript = require('../../script')
+var types = require('../../types')
+var typeforce = require('typeforce')
+
+function check (script) {
+ var chunks = bscript.decompile(script)
+
+ return chunks.length === 2 &&
+ bscript.isCanonicalSignature(chunks[0]) &&
+ bscript.isCanonicalPubKey(chunks[1])
+}
+check.toJSON = function () { return 'pubKeyHash input' }
+
+function encodeStack (signature, pubKey) {
+ typeforce({
+ signature: types.Buffer, pubKey: types.Buffer
+ }, {
+ signature: signature, pubKey: pubKey
+ })
+
+ return [signature, pubKey]
+}
+
+function encode (signature, pubKey) {
+ return bscript.compile(encodeStack(signature, pubKey))
+}
+
+function decodeStack (stack) {
+ typeforce(check, stack)
+
+ return {
+ signature: stack[0],
+ pubKey: stack[1]
+ }
+}
+
+function decode (buffer) {
+ var stack = bscript.decompile(buffer)
+ return decodeStack(stack)
+}
+
+module.exports = {
+ check: check,
+ decode: decode,
+ decodeStack: decodeStack,
+ encode: encode,
+ encodeStack: encodeStack
+}
+
+},{"../../script":52,"../../types":78,"typeforce":109}],64:[function(require,module,exports){
+// OP_DUP OP_HASH160 {pubKeyHash} OP_EQUALVERIFY OP_CHECKSIG
+
+var bscript = require('../../script')
+var types = require('../../types')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
+
+function check (script) {
+ var buffer = bscript.compile(script)
+
+ return buffer.length === 25 &&
+ buffer[0] === OPS.OP_DUP &&
+ buffer[1] === OPS.OP_HASH160 &&
+ buffer[2] === 0x14 &&
+ buffer[23] === OPS.OP_EQUALVERIFY &&
+ buffer[24] === OPS.OP_CHECKSIG
+}
+check.toJSON = function () { return 'pubKeyHash output' }
+
+function encode (pubKeyHash) {
+ typeforce(types.Hash160bit, pubKeyHash)
+
+ return bscript.compile([
+ OPS.OP_DUP,
+ OPS.OP_HASH160,
+ pubKeyHash,
+ OPS.OP_EQUALVERIFY,
+ OPS.OP_CHECKSIG
+ ])
+}
+
+function decode (buffer) {
+ typeforce(check, buffer)
+
+ return buffer.slice(3, 23)
+}
+
+module.exports = {
+ check: check,
+ decode: decode,
+ encode: encode
+}
+
+},{"../../script":52,"../../types":78,"bitcoin-ops":40,"typeforce":109}],65:[function(require,module,exports){
+arguments[4][55][0].apply(exports,arguments)
+},{"./input":66,"./output":67,"dup":55}],66:[function(require,module,exports){
+// {serialized scriptPubKey script}
+
+var Buffer = require('safe-buffer').Buffer
+var bscript = require('../../script')
+var typeforce = require('typeforce')
+
+function check (script, allowIncomplete) {
+ var chunks = bscript.decompile(script)
+ if (chunks.length < 1) return false
+
+ var lastChunk = chunks[chunks.length - 1]
+ if (!Buffer.isBuffer(lastChunk)) return false
+
+ var scriptSigChunks = bscript.decompile(bscript.compile(chunks.slice(0, -1)))
+ var redeemScriptChunks = bscript.decompile(lastChunk)
+
+ // is redeemScript a valid script?
+ if (redeemScriptChunks.length === 0) return false
+
+ // is redeemScriptSig push only?
+ if (!bscript.isPushOnly(scriptSigChunks)) return false
+
+ var inputType = bscript.classifyInput(scriptSigChunks, allowIncomplete)
+ var outputType = bscript.classifyOutput(redeemScriptChunks)
+ if (chunks.length === 1) {
+ return outputType === bscript.types.P2WSH || outputType === bscript.types.P2WPKH
+ }
+ return inputType === outputType
+}
+check.toJSON = function () { return 'scriptHash input' }
+
+function encodeStack (redeemScriptStack, redeemScript) {
+ var serializedScriptPubKey = bscript.compile(redeemScript)
+
+ return [].concat(redeemScriptStack, serializedScriptPubKey)
+}
+
+function encode (redeemScriptSig, redeemScript) {
+ var redeemScriptStack = bscript.decompile(redeemScriptSig)
+
+ return bscript.compile(encodeStack(redeemScriptStack, redeemScript))
+}
+
+function decodeStack (stack) {
+ typeforce(check, stack)
+
+ return {
+ redeemScriptStack: stack.slice(0, -1),
+ redeemScript: stack[stack.length - 1]
+ }
+}
+
+function decode (buffer) {
+ var stack = bscript.decompile(buffer)
+ var result = decodeStack(stack)
+ result.redeemScriptSig = bscript.compile(result.redeemScriptStack)
+ delete result.redeemScriptStack
+ return result
+}
+
+module.exports = {
+ check: check,
+ decode: decode,
+ decodeStack: decodeStack,
+ encode: encode,
+ encodeStack: encodeStack
+}
+
+},{"../../script":52,"safe-buffer":98,"typeforce":109}],67:[function(require,module,exports){
+// OP_HASH160 {scriptHash} OP_EQUAL
+
+var bscript = require('../../script')
+var types = require('../../types')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
+
+function check (script) {
+ var buffer = bscript.compile(script)
+
+ return buffer.length === 23 &&
+ buffer[0] === OPS.OP_HASH160 &&
+ buffer[1] === 0x14 &&
+ buffer[22] === OPS.OP_EQUAL
+}
+check.toJSON = function () { return 'scriptHash output' }
+
+function encode (scriptHash) {
+ typeforce(types.Hash160bit, scriptHash)
+
+ return bscript.compile([OPS.OP_HASH160, scriptHash, OPS.OP_EQUAL])
+}
+
+function decode (buffer) {
+ typeforce(check, buffer)
+
+ return buffer.slice(2, 22)
+}
+
+module.exports = {
+ check: check,
+ decode: decode,
+ encode: encode
+}
+
+},{"../../script":52,"../../types":78,"bitcoin-ops":40,"typeforce":109}],68:[function(require,module,exports){
+module.exports = {
+ output: require('./output')
+}
+
+},{"./output":69}],69:[function(require,module,exports){
+// OP_RETURN {aa21a9ed} {commitment}
+
+var Buffer = require('safe-buffer').Buffer
+var bscript = require('../../script')
+var types = require('../../types')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
+
+var HEADER = Buffer.from('aa21a9ed', 'hex')
+
+function check (script) {
+ var buffer = bscript.compile(script)
+
+ return buffer.length > 37 &&
+ buffer[0] === OPS.OP_RETURN &&
+ buffer[1] === 0x24 &&
+ buffer.slice(2, 6).equals(HEADER)
+}
+
+check.toJSON = function () { return 'Witness commitment output' }
+
+function encode (commitment) {
+ typeforce(types.Hash256bit, commitment)
+
+ var buffer = Buffer.allocUnsafe(36)
+ HEADER.copy(buffer, 0)
+ commitment.copy(buffer, 4)
+
+ return bscript.compile([OPS.OP_RETURN, buffer])
+}
+
+function decode (buffer) {
+ typeforce(check, buffer)
+
+ return bscript.decompile(buffer)[1].slice(4, 36)
+}
+
+module.exports = {
+ check: check,
+ decode: decode,
+ encode: encode
+}
+
+},{"../../script":52,"../../types":78,"bitcoin-ops":40,"safe-buffer":98,"typeforce":109}],70:[function(require,module,exports){
+arguments[4][55][0].apply(exports,arguments)
+},{"./input":71,"./output":72,"dup":55}],71:[function(require,module,exports){
+// {signature} {pubKey}
+
+var pkh = require('../pubkeyhash/input')
+
+module.exports = {
+ check: pkh.check,
+ decodeStack: pkh.decodeStack,
+ encodeStack: pkh.encodeStack
+}
+
+},{"../pubkeyhash/input":63}],72:[function(require,module,exports){
+// OP_0 {pubKeyHash}
+
+var bscript = require('../../script')
+var types = require('../../types')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
+
+function check (script) {
+ var buffer = bscript.compile(script)
+
+ return buffer.length === 22 &&
+ buffer[0] === OPS.OP_0 &&
+ buffer[1] === 0x14
+}
+check.toJSON = function () { return 'Witness pubKeyHash output' }
+
+function encode (pubKeyHash) {
+ typeforce(types.Hash160bit, pubKeyHash)
+
+ return bscript.compile([OPS.OP_0, pubKeyHash])
+}
+
+function decode (buffer) {
+ typeforce(check, buffer)
+
+ return buffer.slice(2)
+}
+
+module.exports = {
+ check: check,
+ decode: decode,
+ encode: encode
+}
+
+},{"../../script":52,"../../types":78,"bitcoin-ops":40,"typeforce":109}],73:[function(require,module,exports){
+arguments[4][55][0].apply(exports,arguments)
+},{"./input":74,"./output":75,"dup":55}],74:[function(require,module,exports){
+// {signature} {pubKey}
+
+var p2sh = require('../scripthash/input')
+
+module.exports = {
+ check: p2sh.check,
+ decodeStack: p2sh.decodeStack,
+ encodeStack: p2sh.encodeStack
+}
+
+},{"../scripthash/input":66}],75:[function(require,module,exports){
+// OP_0 {scriptHash}
+
+var bscript = require('../../script')
+var types = require('../../types')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
+
+function check (script) {
+ var buffer = bscript.compile(script)
+
+ return buffer.length === 34 &&
+ buffer[0] === OPS.OP_0 &&
+ buffer[1] === 0x20
+}
+check.toJSON = function () { return 'Witness scriptHash output' }
+
+function encode (scriptHash) {
+ typeforce(types.Hash256bit, scriptHash)
+
+ return bscript.compile([OPS.OP_0, scriptHash])
+}
+
+function decode (buffer) {
+ typeforce(check, buffer)
+
+ return buffer.slice(2)
+}
+
+module.exports = {
+ check: check,
+ decode: decode,
+ encode: encode
+}
+
+},{"../../script":52,"../../types":78,"bitcoin-ops":40,"typeforce":109}],76:[function(require,module,exports){
+var Buffer = require('safe-buffer').Buffer
+var bcrypto = require('./crypto')
+var bscript = require('./script')
+var bufferutils = require('./bufferutils')
+var opcodes = require('bitcoin-ops')
+var typeforce = require('typeforce')
+var types = require('./types')
+var varuint = require('varuint-bitcoin')
+
+function varSliceSize (someScript) {
+ var length = someScript.length
+
+ return varuint.encodingLength(length) + length
+}
+
+function vectorSize (someVector) {
+ var length = someVector.length
+
+ return varuint.encodingLength(length) + someVector.reduce(function (sum, witness) {
+ return sum + varSliceSize(witness)
+ }, 0)
+}
+
+function Transaction () {
+ this.version = 1
+ this.locktime = 0
+ this.ins = []
+ this.outs = []
+}
+
+Transaction.DEFAULT_SEQUENCE = 0xffffffff
+Transaction.SIGHASH_ALL = 0x01
+Transaction.SIGHASH_NONE = 0x02
+Transaction.SIGHASH_SINGLE = 0x03
+Transaction.SIGHASH_ANYONECANPAY = 0x80
+Transaction.ADVANCED_TRANSACTION_MARKER = 0x00
+Transaction.ADVANCED_TRANSACTION_FLAG = 0x01
+
+var EMPTY_SCRIPT = Buffer.allocUnsafe(0)
+var EMPTY_WITNESS = []
+var ZERO = Buffer.from('0000000000000000000000000000000000000000000000000000000000000000', 'hex')
+var ONE = Buffer.from('0000000000000000000000000000000000000000000000000000000000000001', 'hex')
+var VALUE_UINT64_MAX = Buffer.from('ffffffffffffffff', 'hex')
+var BLANK_OUTPUT = {
+ script: EMPTY_SCRIPT,
+ valueBuffer: VALUE_UINT64_MAX
+}
+
+Transaction.fromBuffer = function (buffer, __noStrict) {
+ var offset = 0
+ function readSlice (n) {
+ offset += n
+ return buffer.slice(offset - n, offset)
+ }
+
+ function readUInt32 () {
+ var i = buffer.readUInt32LE(offset)
+ offset += 4
+ return i
+ }
+
+ function readInt32 () {
+ var i = buffer.readInt32LE(offset)
+ offset += 4
+ return i
+ }
+
+ function readUInt64 () {
+ var i = bufferutils.readUInt64LE(buffer, offset)
+ offset += 8
+ return i
+ }
+
+ function readVarInt () {
+ var vi = varuint.decode(buffer, offset)
+ offset += varuint.decode.bytes
+ return vi
+ }
+
+ function readVarSlice () {
+ return readSlice(readVarInt())
+ }
+
+ function readVector () {
+ var count = readVarInt()
+ var vector = []
+ for (var i = 0; i < count; i++) vector.push(readVarSlice())
+ return vector
+ }
+
+ var tx = new Transaction()
+ tx.version = readInt32()
+
+ var marker = buffer.readUInt8(offset)
+ var flag = buffer.readUInt8(offset + 1)
+
+ var hasWitnesses = false
+ if (marker === Transaction.ADVANCED_TRANSACTION_MARKER &&
+ flag === Transaction.ADVANCED_TRANSACTION_FLAG) {
+ offset += 2
+ hasWitnesses = true
+ }
+
+ var vinLen = readVarInt()
+ for (var i = 0; i < vinLen; ++i) {
+ tx.ins.push({
+ hash: readSlice(32),
+ index: readUInt32(),
+ script: readVarSlice(),
+ sequence: readUInt32(),
+ witness: EMPTY_WITNESS
+ })
+ }
+
+ var voutLen = readVarInt()
+ for (i = 0; i < voutLen; ++i) {
+ tx.outs.push({
+ value: readUInt64(),
+ script: readVarSlice()
+ })
+ }
+
+ if (hasWitnesses) {
+ for (i = 0; i < vinLen; ++i) {
+ tx.ins[i].witness = readVector()
+ }
+
+ // was this pointless?
+ if (!tx.hasWitnesses()) throw new Error('Transaction has superfluous witness data')
+ }
+
+ tx.locktime = readUInt32()
+
+ if (__noStrict) return tx
+ if (offset !== buffer.length) throw new Error('Transaction has unexpected data')
+
+ return tx
+}
+
+Transaction.fromHex = function (hex) {
+ return Transaction.fromBuffer(Buffer.from(hex, 'hex'))
+}
+
+Transaction.isCoinbaseHash = function (buffer) {
+ typeforce(types.Hash256bit, buffer)
+ for (var i = 0; i < 32; ++i) {
+ if (buffer[i] !== 0) return false
+ }
+ return true
+}
+
+Transaction.prototype.isCoinbase = function () {
+ return this.ins.length === 1 && Transaction.isCoinbaseHash(this.ins[0].hash)
+}
+
+Transaction.prototype.addInput = function (hash, index, sequence, scriptSig) {
+ typeforce(types.tuple(
+ types.Hash256bit,
+ types.UInt32,
+ types.maybe(types.UInt32),
+ types.maybe(types.Buffer)
+ ), arguments)
+
+ if (types.Null(sequence)) {
+ sequence = Transaction.DEFAULT_SEQUENCE
+ }
+
+ // Add the input and return the input's index
+ return (this.ins.push({
+ hash: hash,
+ index: index,
+ script: scriptSig || EMPTY_SCRIPT,
+ sequence: sequence,
+ witness: EMPTY_WITNESS
+ }) - 1)
+}
+
+Transaction.prototype.addOutput = function (scriptPubKey, value) {
+ typeforce(types.tuple(types.Buffer, types.Satoshi), arguments)
+
+ // Add the output and return the output's index
+ return (this.outs.push({
+ script: scriptPubKey,
+ value: value
+ }) - 1)
+}
+
+Transaction.prototype.hasWitnesses = function () {
+ return this.ins.some(function (x) {
+ return x.witness.length !== 0
+ })
+}
+
+Transaction.prototype.weight = function () {
+ var base = this.__byteLength(false)
+ var total = this.__byteLength(true)
+ return base * 3 + total
+}
+
+Transaction.prototype.virtualSize = function () {
+ return Math.ceil(this.weight() / 4)
+}
+
+Transaction.prototype.byteLength = function () {
+ return this.__byteLength(true)
+}
+
+Transaction.prototype.__byteLength = function (__allowWitness) {
+ var hasWitnesses = __allowWitness && this.hasWitnesses()
+
+ return (
+ (hasWitnesses ? 10 : 8) +
+ varuint.encodingLength(this.ins.length) +
+ varuint.encodingLength(this.outs.length) +
+ this.ins.reduce(function (sum, input) { return sum + 40 + varSliceSize(input.script) }, 0) +
+ this.outs.reduce(function (sum, output) { return sum + 8 + varSliceSize(output.script) }, 0) +
+ (hasWitnesses ? this.ins.reduce(function (sum, input) { return sum + vectorSize(input.witness) }, 0) : 0)
+ )
+}
+
+Transaction.prototype.clone = function () {
+ var newTx = new Transaction()
+ newTx.version = this.version
+ newTx.locktime = this.locktime
+
+ newTx.ins = this.ins.map(function (txIn) {
+ return {
+ hash: txIn.hash,
+ index: txIn.index,
+ script: txIn.script,
+ sequence: txIn.sequence,
+ witness: txIn.witness
+ }
+ })
+
+ newTx.outs = this.outs.map(function (txOut) {
+ return {
+ script: txOut.script,
+ value: txOut.value
+ }
+ })
+
+ return newTx
+}
+
+/**
+ * Hash transaction for signing a specific input.
+ *
+ * Bitcoin uses a different hash for each signed transaction input.
+ * This method copies the transaction, makes the necessary changes based on the
+ * hashType, and then hashes the result.
+ * This hash can then be used to sign the provided transaction input.
+ */
+Transaction.prototype.hashForSignature = function (inIndex, prevOutScript, hashType) {
+ typeforce(types.tuple(types.UInt32, types.Buffer, /* types.UInt8 */ types.Number), arguments)
+
+ // https://github.com/bitcoin/bitcoin/blob/master/src/test/sighash_tests.cpp#L29
+ if (inIndex >= this.ins.length) return ONE
+
+ // ignore OP_CODESEPARATOR
+ var ourScript = bscript.compile(bscript.decompile(prevOutScript).filter(function (x) {
+ return x !== opcodes.OP_CODESEPARATOR
+ }))
+
+ var txTmp = this.clone()
+
+ // SIGHASH_NONE: ignore all outputs? (wildcard payee)
+ if ((hashType & 0x1f) === Transaction.SIGHASH_NONE) {
+ txTmp.outs = []
+
+ // ignore sequence numbers (except at inIndex)
+ txTmp.ins.forEach(function (input, i) {
+ if (i === inIndex) return
+
+ input.sequence = 0
+ })
+
+ // SIGHASH_SINGLE: ignore all outputs, except at the same index?
+ } else if ((hashType & 0x1f) === Transaction.SIGHASH_SINGLE) {
+ // https://github.com/bitcoin/bitcoin/blob/master/src/test/sighash_tests.cpp#L60
+ if (inIndex >= this.outs.length) return ONE
+
+ // truncate outputs after
+ txTmp.outs.length = inIndex + 1
+
+ // "blank" outputs before
+ for (var i = 0; i < inIndex; i++) {
+ txTmp.outs[i] = BLANK_OUTPUT
+ }
+
+ // ignore sequence numbers (except at inIndex)
+ txTmp.ins.forEach(function (input, y) {
+ if (y === inIndex) return
+
+ input.sequence = 0
+ })
+ }
+
+ // SIGHASH_ANYONECANPAY: ignore inputs entirely?
+ if (hashType & Transaction.SIGHASH_ANYONECANPAY) {
+ txTmp.ins = [txTmp.ins[inIndex]]
+ txTmp.ins[0].script = ourScript
+
+ // SIGHASH_ALL: only ignore input scripts
+ } else {
+ // "blank" others input scripts
+ txTmp.ins.forEach(function (input) { input.script = EMPTY_SCRIPT })
+ txTmp.ins[inIndex].script = ourScript
+ }
+
+ // serialize and hash
+ var buffer = Buffer.allocUnsafe(txTmp.__byteLength(false) + 4)
+ buffer.writeInt32LE(hashType, buffer.length - 4)
+ txTmp.__toBuffer(buffer, 0, false)
+
+ return bcrypto.hash256(buffer)
+}
+
+Transaction.prototype.hashForWitnessV0 = function (inIndex, prevOutScript, value, hashType) {
+ typeforce(types.tuple(types.UInt32, types.Buffer, types.Satoshi, types.UInt32), arguments)
+
+ var tbuffer, toffset
+ function writeSlice (slice) { toffset += slice.copy(tbuffer, toffset) }
+ function writeUInt32 (i) { toffset = tbuffer.writeUInt32LE(i, toffset) }
+ function writeUInt64 (i) { toffset = bufferutils.writeUInt64LE(tbuffer, i, toffset) }
+ function writeVarInt (i) {
+ varuint.encode(i, tbuffer, toffset)
+ toffset += varuint.encode.bytes
+ }
+ function writeVarSlice (slice) { writeVarInt(slice.length); writeSlice(slice) }
+
+ var hashOutputs = ZERO
+ var hashPrevouts = ZERO
+ var hashSequence = ZERO
+
+ if (!(hashType & Transaction.SIGHASH_ANYONECANPAY)) {
+ tbuffer = Buffer.allocUnsafe(36 * this.ins.length)
+ toffset = 0
+
+ this.ins.forEach(function (txIn) {
+ writeSlice(txIn.hash)
+ writeUInt32(txIn.index)
+ })
+
+ hashPrevouts = bcrypto.hash256(tbuffer)
+ }
+
+ if (!(hashType & Transaction.SIGHASH_ANYONECANPAY) &&
+ (hashType & 0x1f) !== Transaction.SIGHASH_SINGLE &&
+ (hashType & 0x1f) !== Transaction.SIGHASH_NONE) {
+ tbuffer = Buffer.allocUnsafe(4 * this.ins.length)
+ toffset = 0
+
+ this.ins.forEach(function (txIn) {
+ writeUInt32(txIn.sequence)
+ })
+
+ hashSequence = bcrypto.hash256(tbuffer)
+ }
+
+ if ((hashType & 0x1f) !== Transaction.SIGHASH_SINGLE &&
+ (hashType & 0x1f) !== Transaction.SIGHASH_NONE) {
+ var txOutsSize = this.outs.reduce(function (sum, output) {
+ return sum + 8 + varSliceSize(output.script)
+ }, 0)
+
+ tbuffer = Buffer.allocUnsafe(txOutsSize)
+ toffset = 0
+
+ this.outs.forEach(function (out) {
+ writeUInt64(out.value)
+ writeVarSlice(out.script)
+ })
+
+ hashOutputs = bcrypto.hash256(tbuffer)
+ } else if ((hashType & 0x1f) === Transaction.SIGHASH_SINGLE && inIndex < this.outs.length) {
+ var output = this.outs[inIndex]
+
+ tbuffer = Buffer.allocUnsafe(8 + varSliceSize(output.script))
+ toffset = 0
+ writeUInt64(output.value)
+ writeVarSlice(output.script)
+
+ hashOutputs = bcrypto.hash256(tbuffer)
+ }
+
+ tbuffer = Buffer.allocUnsafe(156 + varSliceSize(prevOutScript))
+ toffset = 0
+
+ var input = this.ins[inIndex]
+ writeUInt32(this.version)
+ writeSlice(hashPrevouts)
+ writeSlice(hashSequence)
+ writeSlice(input.hash)
+ writeUInt32(input.index)
+ writeVarSlice(prevOutScript)
+ writeUInt64(value)
+ writeUInt32(input.sequence)
+ writeSlice(hashOutputs)
+ writeUInt32(this.locktime)
+ writeUInt32(hashType)
+ return bcrypto.hash256(tbuffer)
+}
+
+Transaction.prototype.getHash = function () {
+ return bcrypto.hash256(this.__toBuffer(undefined, undefined, false))
+}
+
+Transaction.prototype.getId = function () {
+ // transaction hash's are displayed in reverse order
+ return this.getHash().reverse().toString('hex')
+}
+
+Transaction.prototype.toBuffer = function (buffer, initialOffset) {
+ return this.__toBuffer(buffer, initialOffset, true)
+}
+
+Transaction.prototype.__toBuffer = function (buffer, initialOffset, __allowWitness) {
+ if (!buffer) buffer = Buffer.allocUnsafe(this.__byteLength(__allowWitness))
+
+ var offset = initialOffset || 0
+ function writeSlice (slice) { offset += slice.copy(buffer, offset) }
+ function writeUInt8 (i) { offset = buffer.writeUInt8(i, offset) }
+ function writeUInt32 (i) { offset = buffer.writeUInt32LE(i, offset) }
+ function writeInt32 (i) { offset = buffer.writeInt32LE(i, offset) }
+ function writeUInt64 (i) { offset = bufferutils.writeUInt64LE(buffer, i, offset) }
+ function writeVarInt (i) {
+ varuint.encode(i, buffer, offset)
+ offset += varuint.encode.bytes
+ }
+ function writeVarSlice (slice) { writeVarInt(slice.length); writeSlice(slice) }
+ function writeVector (vector) { writeVarInt(vector.length); vector.forEach(writeVarSlice) }
+
+ writeInt32(this.version)
+
+ var hasWitnesses = __allowWitness && this.hasWitnesses()
+
+ if (hasWitnesses) {
+ writeUInt8(Transaction.ADVANCED_TRANSACTION_MARKER)
+ writeUInt8(Transaction.ADVANCED_TRANSACTION_FLAG)
+ }
+
+ writeVarInt(this.ins.length)
+
+ this.ins.forEach(function (txIn) {
+ writeSlice(txIn.hash)
+ writeUInt32(txIn.index)
+ writeVarSlice(txIn.script)
+ writeUInt32(txIn.sequence)
+ })
+
+ writeVarInt(this.outs.length)
+ this.outs.forEach(function (txOut) {
+ if (!txOut.valueBuffer) {
+ writeUInt64(txOut.value)
+ } else {
+ writeSlice(txOut.valueBuffer)
+ }
+
+ writeVarSlice(txOut.script)
+ })
+
+ if (hasWitnesses) {
+ this.ins.forEach(function (input) {
+ writeVector(input.witness)
+ })
+ }
+
+ writeUInt32(this.locktime)
+
+ // avoid slicing unless necessary
+ if (initialOffset !== undefined) return buffer.slice(initialOffset, offset)
+ return buffer
+}
+
+Transaction.prototype.toHex = function () {
+ return this.toBuffer().toString('hex')
+}
+
+Transaction.prototype.setInputScript = function (index, scriptSig) {
+ typeforce(types.tuple(types.Number, types.Buffer), arguments)
+
+ this.ins[index].script = scriptSig
+}
+
+Transaction.prototype.setWitness = function (index, witness) {
+ typeforce(types.tuple(types.Number, [types.Buffer]), arguments)
+
+ this.ins[index].witness = witness
+}
+
+module.exports = Transaction
+
+},{"./bufferutils":44,"./crypto":45,"./script":52,"./types":78,"bitcoin-ops":40,"safe-buffer":98,"typeforce":109,"varuint-bitcoin":111}],77:[function(require,module,exports){
+var Buffer = require('safe-buffer').Buffer
+var baddress = require('./address')
+var bcrypto = require('./crypto')
+var bscript = require('./script')
+var networks = require('./networks')
+var ops = require('bitcoin-ops')
+var typeforce = require('typeforce')
+var types = require('./types')
+var scriptTypes = bscript.types
+var SIGNABLE = [bscript.types.P2PKH, bscript.types.P2PK, bscript.types.MULTISIG]
+var P2SH = SIGNABLE.concat([bscript.types.P2WPKH, bscript.types.P2WSH])
+
+var ECPair = require('./ecpair')
+var ECSignature = require('./ecsignature')
+var Transaction = require('./transaction')
+
+function extractChunks (type, chunks, script) {
+ var pubKeys = []
+ var signatures = []
+ switch (type) {
+ case scriptTypes.P2PKH:
+ // if (redeemScript) throw new Error('Nonstandard... P2SH(P2PKH)')
+ pubKeys = chunks.slice(1)
+ signatures = chunks.slice(0, 1)
+ break
+
+ case scriptTypes.P2PK:
+ pubKeys[0] = script ? bscript.pubKey.output.decode(script) : undefined
+ signatures = chunks.slice(0, 1)
+ break
+
+ case scriptTypes.MULTISIG:
+ if (script) {
+ var multisig = bscript.multisig.output.decode(script)
+ pubKeys = multisig.pubKeys
+ }
+
+ signatures = chunks.slice(1).map(function (chunk) {
+ return chunk.length === 0 ? undefined : chunk
+ })
+ break
+ }
+
+ return {
+ pubKeys: pubKeys,
+ signatures: signatures
+ }
+}
+function expandInput (scriptSig, witnessStack) {
+ if (scriptSig.length === 0 && witnessStack.length === 0) return {}
+
+ var prevOutScript
+ var prevOutType
+ var scriptType
+ var script
+ var redeemScript
+ var witnessScript
+ var witnessScriptType
+ var redeemScriptType
+ var witness = false
+ var p2wsh = false
+ var p2sh = false
+ var witnessProgram
+ var chunks
+
+ var scriptSigChunks = bscript.decompile(scriptSig)
+ var sigType = bscript.classifyInput(scriptSigChunks, true)
+ if (sigType === scriptTypes.P2SH) {
+ p2sh = true
+ redeemScript = scriptSigChunks[scriptSigChunks.length - 1]
+ redeemScriptType = bscript.classifyOutput(redeemScript)
+ prevOutScript = bscript.scriptHash.output.encode(bcrypto.hash160(redeemScript))
+ prevOutType = scriptTypes.P2SH
+ script = redeemScript
+ }
+
+ var classifyWitness = bscript.classifyWitness(witnessStack)
+ if (classifyWitness === scriptTypes.P2WSH) {
+ witnessScript = witnessStack[witnessStack.length - 1]
+ witnessScriptType = bscript.classifyOutput(witnessScript)
+ p2wsh = true
+ if (scriptSig.length === 0) {
+ prevOutScript = bscript.witnessScriptHash.output.encode(bcrypto.sha256(witnessScript))
+ prevOutType = scriptTypes.P2WSH
+ if (typeof redeemScript !== 'undefined') {
+ throw new Error('Redeem script given when unnecessary')
+ }
+ // bare witness
+ } else {
+ if (!redeemScript) {
+ throw new Error('No redeemScript provided for P2WSH, but scriptSig non-empty')
+ }
+ witnessProgram = bscript.witnessScriptHash.output.encode(bcrypto.sha256(witnessScript))
+ if (!redeemScript.equals(witnessProgram)) {
+ throw new Error('Redeem script didn\'t match witnessScript')
+ }
+ }
+
+ if (SIGNABLE.indexOf(bscript.classifyOutput(witnessScript)) === -1) {
+ throw new Error('unsupported witness script')
+ }
+ script = witnessScript
+ scriptType = witnessScriptType
+ chunks = witnessStack.slice(0, -1)
+ } else if (classifyWitness === scriptTypes.P2WPKH) {
+ var key = witnessStack[witnessStack.length - 1]
+ var keyHash = bcrypto.hash160(key)
+ if (scriptSig.length === 0) {
+ prevOutScript = bscript.witnessPubKeyHash.output.encode(keyHash)
+ prevOutType = scriptTypes.P2WPKH
+ if (typeof redeemScript !== 'undefined') {
+ throw new Error('Redeem script given when unnecessary')
+ }
+ } else {
+ if (!redeemScript) {
+ throw new Error('No redeemScript provided for P2WPKH, but scriptSig wasn\'t empty')
+ }
+ witnessProgram = bscript.witnessPubKeyHash.output.encode(keyHash)
+ if (!redeemScript.equals(witnessProgram)) {
+ throw new Error('Redeem script did not have the right witness program')
+ }
+ }
+
+ scriptType = scriptTypes.P2PKH
+ chunks = witnessStack
+ } else if (redeemScript) {
+ if (P2SH.indexOf(redeemScriptType) === -1) {
+ throw new Error('Bad redeemscript!')
+ }
+
+ script = redeemScript
+ scriptType = redeemScriptType
+ chunks = scriptSigChunks.slice(0, -1)
+ } else {
+ prevOutType = scriptType = bscript.classifyInput(scriptSig)
+ chunks = scriptSigChunks
+ }
+
+ var expanded = extractChunks(scriptType, chunks, script)
+
+ var result = {
+ pubKeys: expanded.pubKeys,
+ signatures: expanded.signatures,
+ prevOutScript: prevOutScript,
+ prevOutType: prevOutType,
+ signType: scriptType,
+ signScript: script,
+ witness: Boolean(witness)
+ }
+
+ if (p2sh) {
+ result.redeemScript = redeemScript
+ result.redeemScriptType = redeemScriptType
+ }
+
+ if (p2wsh) {
+ result.witnessScript = witnessScript
+ result.witnessScriptType = witnessScriptType
+ }
+
+ return result
+}
+
+// could be done in expandInput, but requires the original Transaction for hashForSignature
+function fixMultisigOrder (input, transaction, vin) {
+ if (input.redeemScriptType !== scriptTypes.MULTISIG || !input.redeemScript) return
+ if (input.pubKeys.length === input.signatures.length) return
+
+ var unmatched = input.signatures.concat()
+
+ input.signatures = input.pubKeys.map(function (pubKey) {
+ var keyPair = ECPair.fromPublicKeyBuffer(pubKey)
+ var match
+
+ // check for a signature
+ unmatched.some(function (signature, i) {
+ // skip if undefined || OP_0
+ if (!signature) return false
+
+ // TODO: avoid O(n) hashForSignature
+ var parsed = ECSignature.parseScriptSignature(signature)
+ var hash = transaction.hashForSignature(vin, input.redeemScript, parsed.hashType)
+
+ // skip if signature does not match pubKey
+ if (!keyPair.verify(hash, parsed.signature)) return false
+
+ // remove matched signature from unmatched
+ unmatched[i] = undefined
+ match = signature
+
+ return true
+ })
+
+ return match
+ })
+}
+
+function expandOutput (script, scriptType, ourPubKey) {
+ typeforce(types.Buffer, script)
+
+ var scriptChunks = bscript.decompile(script)
+ if (!scriptType) {
+ scriptType = bscript.classifyOutput(script)
+ }
+
+ var pubKeys = []
+
+ switch (scriptType) {
+ // does our hash160(pubKey) match the output scripts?
+ case scriptTypes.P2PKH:
+ if (!ourPubKey) break
+
+ var pkh1 = scriptChunks[2]
+ var pkh2 = bcrypto.hash160(ourPubKey)
+ if (pkh1.equals(pkh2)) pubKeys = [ourPubKey]
+ break
+
+ // does our hash160(pubKey) match the output scripts?
+ case scriptTypes.P2WPKH:
+ if (!ourPubKey) break
+
+ var wpkh1 = scriptChunks[1]
+ var wpkh2 = bcrypto.hash160(ourPubKey)
+ if (wpkh1.equals(wpkh2)) pubKeys = [ourPubKey]
+ break
+
+ case scriptTypes.P2PK:
+ pubKeys = scriptChunks.slice(0, 1)
+ break
+
+ case scriptTypes.MULTISIG:
+ pubKeys = scriptChunks.slice(1, -2)
+ break
+
+ default: return { scriptType: scriptType }
+ }
+
+ return {
+ pubKeys: pubKeys,
+ scriptType: scriptType,
+ signatures: pubKeys.map(function () { return undefined })
+ }
+}
+
+function checkP2shInput (input, redeemScriptHash) {
+ if (input.prevOutType) {
+ if (input.prevOutType !== scriptTypes.P2SH) throw new Error('PrevOutScript must be P2SH')
+
+ var prevOutScriptScriptHash = bscript.decompile(input.prevOutScript)[1]
+ if (!prevOutScriptScriptHash.equals(redeemScriptHash)) throw new Error('Inconsistent hash160(RedeemScript)')
+ }
+}
+
+function checkP2WSHInput (input, witnessScriptHash) {
+ if (input.prevOutType) {
+ if (input.prevOutType !== scriptTypes.P2WSH) throw new Error('PrevOutScript must be P2WSH')
+
+ var scriptHash = bscript.decompile(input.prevOutScript)[1]
+ if (!scriptHash.equals(witnessScriptHash)) throw new Error('Inconsistent sha25(WitnessScript)')
+ }
+}
+
+function prepareInput (input, kpPubKey, redeemScript, witnessValue, witnessScript) {
+ var expanded
+ var prevOutType
+ var prevOutScript
+
+ var p2sh = false
+ var p2shType
+ var redeemScriptHash
+
+ var witness = false
+ var p2wsh = false
+ var witnessType
+ var witnessScriptHash
+
+ var signType
+ var signScript
+
+ if (redeemScript && witnessScript) {
+ redeemScriptHash = bcrypto.hash160(redeemScript)
+ witnessScriptHash = bcrypto.sha256(witnessScript)
+ checkP2shInput(input, redeemScriptHash)
+
+ if (!redeemScript.equals(bscript.witnessScriptHash.output.encode(witnessScriptHash))) throw new Error('Witness script inconsistent with redeem script')
+
+ expanded = expandOutput(witnessScript, undefined, kpPubKey)
+ if (!expanded.pubKeys) throw new Error('WitnessScript not supported "' + bscript.toASM(redeemScript) + '"')
+ prevOutType = bscript.types.P2SH
+ prevOutScript = bscript.scriptHash.output.encode(redeemScriptHash)
+ p2sh = witness = p2wsh = true
+ p2shType = bscript.types.P2WSH
+ signType = witnessType = expanded.scriptType
+ signScript = witnessScript
+ } else if (redeemScript) {
+ redeemScriptHash = bcrypto.hash160(redeemScript)
+ checkP2shInput(input, redeemScriptHash)
+
+ expanded = expandOutput(redeemScript, undefined, kpPubKey)
+ if (!expanded.pubKeys) throw new Error('RedeemScript not supported "' + bscript.toASM(redeemScript) + '"')
+
+ prevOutType = bscript.types.P2SH
+ prevOutScript = bscript.scriptHash.output.encode(redeemScriptHash)
+ p2sh = true
+ signType = p2shType = expanded.scriptType
+ signScript = redeemScript
+ witness = signType === bscript.types.P2WPKH
+ } else if (witnessScript) {
+ witnessScriptHash = bcrypto.sha256(witnessScript)
+ checkP2WSHInput(input, witnessScriptHash)
+
+ expanded = expandOutput(witnessScript, undefined, kpPubKey)
+ if (!expanded.pubKeys) throw new Error('WitnessScript not supported "' + bscript.toASM(redeemScript) + '"')
+
+ prevOutType = bscript.types.P2WSH
+ prevOutScript = bscript.witnessScriptHash.output.encode(witnessScriptHash)
+ witness = p2wsh = true
+ signType = witnessType = expanded.scriptType
+ signScript = witnessScript
+ } else if (input.prevOutType) {
+ // embedded scripts are not possible without a redeemScript
+ if (input.prevOutType === scriptTypes.P2SH ||
+ input.prevOutType === scriptTypes.P2WSH) {
+ throw new Error('PrevOutScript is ' + input.prevOutType + ', requires redeemScript')
+ }
+
+ prevOutType = input.prevOutType
+ prevOutScript = input.prevOutScript
+ expanded = expandOutput(input.prevOutScript, input.prevOutType, kpPubKey)
+ if (!expanded.pubKeys) return
+
+ witness = (input.prevOutType === scriptTypes.P2WPKH)
+ signType = prevOutType
+ signScript = prevOutScript
+ } else {
+ prevOutScript = bscript.pubKeyHash.output.encode(bcrypto.hash160(kpPubKey))
+ expanded = expandOutput(prevOutScript, scriptTypes.P2PKH, kpPubKey)
+ prevOutType = scriptTypes.P2PKH
+ witness = false
+ signType = prevOutType
+ signScript = prevOutScript
+ }
+
+ if (witness && !types.Satoshi(witnessValue)) {
+ throw new Error('Input was witness but not given witness value')
+ }
+
+ if (signType === scriptTypes.P2WPKH) {
+ signScript = bscript.pubKeyHash.output.encode(bscript.witnessPubKeyHash.output.decode(signScript))
+ }
+
+ if (p2sh) {
+ input.redeemScript = redeemScript
+ input.redeemScriptType = p2shType
+ }
+
+ if (p2wsh) {
+ input.witnessScript = witnessScript
+ input.witnessScriptType = witnessType
+ }
+
+ input.pubKeys = expanded.pubKeys
+ input.signatures = expanded.signatures
+ input.signScript = signScript
+ input.signType = signType
+ input.prevOutScript = prevOutScript
+ input.prevOutType = prevOutType
+ input.witness = witness
+}
+
+function buildStack (type, signatures, pubKeys, allowIncomplete) {
+ if (type === scriptTypes.P2PKH) {
+ if (signatures.length === 1 && Buffer.isBuffer(signatures[0]) && pubKeys.length === 1) return bscript.pubKeyHash.input.encodeStack(signatures[0], pubKeys[0])
+ } else if (type === scriptTypes.P2PK) {
+ if (signatures.length === 1 && Buffer.isBuffer(signatures[0])) return bscript.pubKey.input.encodeStack(signatures[0])
+ } else if (type === scriptTypes.MULTISIG) {
+ if (signatures.length > 0) {
+ signatures = signatures.map(function (signature) {
+ return signature || ops.OP_0
+ })
+ if (!allowIncomplete) {
+ // remove blank signatures
+ signatures = signatures.filter(function (x) { return x !== ops.OP_0 })
+ }
+
+ return bscript.multisig.input.encodeStack(signatures /* see if it's necessary first */)
+ }
+ } else {
+ throw new Error('Not yet supported')
+ }
+
+ if (!allowIncomplete) throw new Error('Not enough signatures provided')
+
+ return []
+}
+
+function buildInput (input, allowIncomplete) {
+ var scriptType = input.prevOutType
+ var sig = []
+ var witness = []
+ if (SIGNABLE.indexOf(scriptType) !== -1) {
+ sig = buildStack(scriptType, input.signatures, input.pubKeys, allowIncomplete)
+ }
+
+ var p2sh = false
+ if (scriptType === bscript.types.P2SH) {
+ // We can remove this error later when we have a guarantee prepareInput
+ // rejects unsignable scripts - it MUST be signable at this point.
+ if (P2SH.indexOf(input.redeemScriptType) === -1) {
+ throw new Error('Impossible to sign this type')
+ }
+ p2sh = true
+ if (SIGNABLE.indexOf(input.redeemScriptType) !== -1) {
+ sig = buildStack(input.redeemScriptType, input.signatures, input.pubKeys, allowIncomplete)
+ }
+ // If it wasn't SIGNABLE, it's witness, defer to that
+ scriptType = input.redeemScriptType
+ }
+
+ if (scriptType === bscript.types.P2WPKH) {
+ // P2WPKH is a special case of P2PKH
+ witness = buildStack(bscript.types.P2PKH, input.signatures, input.pubKeys, allowIncomplete)
+ } else if (scriptType === bscript.types.P2WSH) {
+ // We can remove this check later
+ if (SIGNABLE.indexOf(input.witnessScriptType) !== -1) {
+ witness = buildStack(input.witnessScriptType, input.signatures, input.pubKeys, allowIncomplete)
+ witness.push(input.witnessScript)
+ } else {
+ // We can remove this error later when we have a guarantee prepareInput
+ // rejects unsignble scripts - it MUST be signable at this point.
+ throw new Error()
+ }
+
+ scriptType = input.witnessScriptType
+ }
+
+ // append redeemScript if necessary
+ if (p2sh) {
+ sig.push(input.redeemScript)
+ }
+
+ return {
+ type: scriptType,
+ script: bscript.compile(sig),
+ witness: witness
+ }
+}
+
+function TransactionBuilder (network, maximumFeeRate) {
+ this.prevTxMap = {}
+ 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.inputs = []
+ this.tx = new Transaction()
+}
+
+TransactionBuilder.prototype.setLockTime = function (locktime) {
+ typeforce(types.UInt32, locktime)
+
+ // if any signatures exist, throw
+ if (this.inputs.some(function (input) {
+ if (!input.signatures) return false
+
+ return input.signatures.some(function (s) { return s })
+ })) {
+ throw new Error('No, this would invalidate signatures')
+ }
+
+ this.tx.locktime = locktime
+}
+
+TransactionBuilder.prototype.setVersion = function (version) {
+ typeforce(types.UInt32, version)
+
+ // XXX: this might eventually become more complex depending on what the versions represent
+ this.tx.version = version
+}
+
+TransactionBuilder.fromTransaction = function (transaction, network) {
+ var txb = new TransactionBuilder(network)
+
+ // Copy transaction fields
+ txb.setVersion(transaction.version)
+ txb.setLockTime(transaction.locktime)
+
+ // Copy outputs (done first to avoid signature invalidation)
+ transaction.outs.forEach(function (txOut) {
+ txb.addOutput(txOut.script, txOut.value)
+ })
+
+ // Copy inputs
+ transaction.ins.forEach(function (txIn) {
+ txb.__addInputUnsafe(txIn.hash, txIn.index, {
+ sequence: txIn.sequence,
+ script: txIn.script,
+ witness: txIn.witness
+ })
+ })
+
+ // fix some things not possible through the public API
+ txb.inputs.forEach(function (input, i) {
+ fixMultisigOrder(input, transaction, i)
+ })
+
+ return txb
+}
+
+TransactionBuilder.prototype.addInput = function (txHash, vout, sequence, prevOutScript) {
+ if (!this.__canModifyInputs()) {
+ throw new Error('No, this would invalidate signatures')
+ }
+
+ var value
+
+ // is it a hex string?
+ if (typeof txHash === 'string') {
+ // transaction hashs's are displayed in reverse order, un-reverse it
+ txHash = Buffer.from(txHash, 'hex').reverse()
+
+ // is it a Transaction object?
+ } else if (txHash instanceof Transaction) {
+ var txOut = txHash.outs[vout]
+ prevOutScript = txOut.script
+ value = txOut.value
+
+ txHash = txHash.getHash()
+ }
+
+ return this.__addInputUnsafe(txHash, vout, {
+ sequence: sequence,
+ prevOutScript: prevOutScript,
+ value: value
+ })
+}
+
+TransactionBuilder.prototype.__addInputUnsafe = function (txHash, vout, options) {
+ if (Transaction.isCoinbaseHash(txHash)) {
+ throw new Error('coinbase inputs not supported')
+ }
+
+ var prevTxOut = txHash.toString('hex') + ':' + vout
+ if (this.prevTxMap[prevTxOut] !== undefined) throw new Error('Duplicate TxOut: ' + prevTxOut)
+
+ var input = {}
+
+ // derive what we can from the scriptSig
+ if (options.script !== undefined) {
+ input = expandInput(options.script, options.witness || [])
+ }
+
+ // if an input value was given, retain it
+ if (options.value !== undefined) {
+ input.value = options.value
+ }
+
+ // derive what we can from the previous transactions output script
+ if (!input.prevOutScript && options.prevOutScript) {
+ var prevOutType
+
+ if (!input.pubKeys && !input.signatures) {
+ var expanded = expandOutput(options.prevOutScript)
+
+ if (expanded.pubKeys) {
+ input.pubKeys = expanded.pubKeys
+ input.signatures = expanded.signatures
+ }
+
+ prevOutType = expanded.scriptType
+ }
+
+ input.prevOutScript = options.prevOutScript
+ input.prevOutType = prevOutType || bscript.classifyOutput(options.prevOutScript)
+ }
+
+ var vin = this.tx.addInput(txHash, vout, options.sequence, options.scriptSig)
+ this.inputs[vin] = input
+ this.prevTxMap[prevTxOut] = vin
+
+ return vin
+}
+
+TransactionBuilder.prototype.addOutput = function (scriptPubKey, value) {
+ if (!this.__canModifyOutputs()) {
+ throw new Error('No, this would invalidate signatures')
+ }
+
+ // Attempt to get a script if it's a base58 address string
+ if (typeof scriptPubKey === 'string') {
+ scriptPubKey = baddress.toOutputScript(scriptPubKey, this.network)
+ }
+
+ return this.tx.addOutput(scriptPubKey, value)
+}
+
+TransactionBuilder.prototype.build = function () {
+ return this.__build(false)
+}
+TransactionBuilder.prototype.buildIncomplete = function () {
+ return this.__build(true)
+}
+
+TransactionBuilder.prototype.__build = function (allowIncomplete) {
+ if (!allowIncomplete) {
+ if (!this.tx.ins.length) throw new Error('Transaction has no inputs')
+ if (!this.tx.outs.length) throw new Error('Transaction has no outputs')
+ }
+
+ var tx = this.tx.clone()
+ // Create script signatures from inputs
+ this.inputs.forEach(function (input, i) {
+ var scriptType = input.witnessScriptType || input.redeemScriptType || input.prevOutType
+ if (!scriptType && !allowIncomplete) throw new Error('Transaction is not complete')
+ var result = buildInput(input, allowIncomplete)
+
+ // skip if no result
+ if (!allowIncomplete) {
+ if (SIGNABLE.indexOf(result.type) === -1 && result.type !== bscript.types.P2WPKH) {
+ throw new Error(result.type + ' not supported')
+ }
+ }
+
+ tx.setInputScript(i, result.script)
+ tx.setWitness(i, result.witness)
+ })
+
+ if (!allowIncomplete) {
+ // do not rely on this, its merely a last resort
+ if (this.__overMaximumFees(tx.byteLength())) {
+ throw new Error('Transaction has absurd fees')
+ }
+ }
+
+ return tx
+}
+
+function canSign (input) {
+ return input.prevOutScript !== undefined &&
+ input.signScript !== undefined &&
+ input.pubKeys !== undefined &&
+ input.signatures !== undefined &&
+ input.signatures.length === input.pubKeys.length &&
+ input.pubKeys.length > 0 &&
+ input.witness !== undefined
+}
+
+TransactionBuilder.prototype.sign = function (vin, keyPair, redeemScript, hashType, witnessValue, witnessScript) {
+ if (keyPair.network !== this.network) throw new Error('Inconsistent network')
+ if (!this.inputs[vin]) throw new Error('No input at index: ' + vin)
+ hashType = hashType || Transaction.SIGHASH_ALL
+
+ var input = this.inputs[vin]
+
+ // if redeemScript was previously provided, enforce consistency
+ if (input.redeemScript !== undefined &&
+ redeemScript &&
+ !input.redeemScript.equals(redeemScript)) {
+ throw new Error('Inconsistent redeemScript')
+ }
+
+ var kpPubKey = keyPair.getPublicKeyBuffer()
+ if (!canSign(input)) {
+ prepareInput(input, kpPubKey, redeemScript, witnessValue, witnessScript)
+ if (!canSign(input)) throw Error(input.prevOutType + ' not supported')
+ }
+
+ // ready to sign
+ var signatureHash
+ if (input.witness) {
+ signatureHash = this.tx.hashForWitnessV0(vin, input.signScript, witnessValue, hashType)
+ } else {
+ signatureHash = this.tx.hashForSignature(vin, input.signScript, hashType)
+ }
+ // enforce in order signing of public keys
+ var signed = input.pubKeys.some(function (pubKey, i) {
+ if (!kpPubKey.equals(pubKey)) return false
+ if (input.signatures[i]) throw new Error('Signature already exists')
+
+ input.signatures[i] = keyPair.sign(signatureHash).toScriptSignature(hashType)
+ return true
+ })
+
+ if (!signed) throw new Error('Key pair cannot sign for this input')
+}
+
+function signatureHashType (buffer) {
+ return buffer.readUInt8(buffer.length - 1)
+}
+
+TransactionBuilder.prototype.__canModifyInputs = function () {
+ return this.inputs.every(function (input) {
+ // any signatures?
+ if (input.signatures === undefined) return true
+
+ return input.signatures.every(function (signature) {
+ if (!signature) return true
+ var hashType = signatureHashType(signature)
+
+ // if SIGHASH_ANYONECANPAY is set, signatures would not
+ // be invalidated by more inputs
+ return hashType & Transaction.SIGHASH_ANYONECANPAY
+ })
+ })
+}
+
+TransactionBuilder.prototype.__canModifyOutputs = function () {
+ var nInputs = this.tx.ins.length
+ var nOutputs = this.tx.outs.length
+
+ return this.inputs.every(function (input) {
+ if (input.signatures === undefined) return true
+
+ return input.signatures.every(function (signature) {
+ if (!signature) return true
+ var hashType = signatureHashType(signature)
+
+ var hashTypeMod = hashType & 0x1f
+ if (hashTypeMod === Transaction.SIGHASH_NONE) return true
+ if (hashTypeMod === Transaction.SIGHASH_SINGLE) {
+ // if SIGHASH_SINGLE is set, and nInputs > nOutputs
+ // some signatures would be invalidated by the addition
+ // of more outputs
+ return nInputs <= nOutputs
+ }
+ })
+ })
+}
+
+TransactionBuilder.prototype.__overMaximumFees = function (bytes) {
+ // not all inputs will have .value defined
+ var incoming = this.inputs.reduce(function (a, x) { return a + (x.value >>> 0) }, 0)
+
+ // but all outputs do, and if we have any input value
+ // we can immediately determine if the outputs are too small
+ var outgoing = this.tx.outs.reduce(function (a, x) { return a + x.value }, 0)
+ var fee = incoming - outgoing
+ var feeRate = fee / bytes
+
+ return feeRate > this.maximumFeeRate
+}
+
+module.exports = TransactionBuilder
+
+},{"./address":42,"./crypto":45,"./ecpair":47,"./ecsignature":48,"./networks":51,"./script":52,"./transaction":76,"./types":78,"bitcoin-ops":40,"safe-buffer":98,"typeforce":109}],78:[function(require,module,exports){
+var typeforce = require('typeforce')
+
+var UINT31_MAX = Math.pow(2, 31) - 1
+function UInt31 (value) {
+ return typeforce.UInt32(value) && value <= UINT31_MAX
+}
+
+function BIP32Path (value) {
+ return typeforce.String(value) && value.match(/^(m\/)?(\d+'?\/)*\d+'?$/)
+}
+BIP32Path.toJSON = function () { return 'BIP32 derivation path' }
+
+var SATOSHI_MAX = 21 * 1e14
+function Satoshi (value) {
+ return typeforce.UInt53(value) && value <= SATOSHI_MAX
+}
+
+// external dependent types
+var BigInt = typeforce.quacksLike('BigInteger')
+var ECPoint = typeforce.quacksLike('Point')
+
+// exposed, external API
+var ECSignature = typeforce.compile({ r: BigInt, s: BigInt })
+var Network = typeforce.compile({
+ messagePrefix: typeforce.oneOf(typeforce.Buffer, typeforce.String),
+ bip32: {
+ public: typeforce.UInt32,
+ private: typeforce.UInt32
+ },
+ pubKeyHash: typeforce.UInt8,
+ scriptHash: typeforce.UInt8,
+ wif: typeforce.UInt8
+})
+
+// extend typeforce types with ours
+var types = {
+ BigInt: BigInt,
+ BIP32Path: BIP32Path,
+ Buffer256bit: typeforce.BufferN(32),
+ ECPoint: ECPoint,
+ ECSignature: ECSignature,
+ Hash160bit: typeforce.BufferN(20),
+ Hash256bit: typeforce.BufferN(32),
+ Network: Network,
+ Satoshi: Satoshi,
+ UInt31: UInt31
+}
+
+for (var typeName in typeforce) {
+ types[typeName] = typeforce[typeName]
+}
+
+module.exports = types
+
+},{"typeforce":109}],79:[function(require,module,exports){
+var basex = require('base-x')
+var ALPHABET = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'
+
+module.exports = basex(ALPHABET)
+
+},{"base-x":34}],80:[function(require,module,exports){
+(function (Buffer){
+'use strict'
+
+var base58 = require('bs58')
+var createHash = require('create-hash')
+
+// SHA256(SHA256(buffer))
+function sha256x2 (buffer) {
+ var tmp = createHash('sha256').update(buffer).digest()
+ return createHash('sha256').update(tmp).digest()
+}
+
+// Encode a buffer as a base58-check encoded string
+function encode (payload) {
+ var checksum = sha256x2(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 = sha256x2(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)
+ if (!payload) throw new Error('Invalid checksum')
+ return payload
+}
+
+module.exports = {
+ encode: encode,
+ decode: decode,
+ decodeUnsafe: decodeUnsafe
+}
+
+}).call(this,require("buffer").Buffer)
+},{"bs58":79,"buffer":4,"create-hash":82}],81:[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
+ }
+
+ if (this._encoding !== enc) throw new Error('can\'t switch encodings')
+
+ var out = this._decoder.write(value)
+ if (fin) {
+ out += this._decoder.end()
+ }
+
+ return out
+}
+
+module.exports = CipherBase
+
+},{"inherits":93,"safe-buffer":98,"stream":27,"string_decoder":28}],82:[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 = []
+}
+
+inherits(HashNoConstructor, Base)
+
+HashNoConstructor.prototype._update = function (data) {
+ this.buffers.push(data)
+}
+
+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":84,"buffer":4,"cipher-base":81,"inherits":93,"ripemd160":97,"sha.js":100}],83:[function(require,module,exports){
+(function (Buffer){
+'use strict'
+var intSize = 4
+var zeroBuffer = new Buffer(intSize)
+zeroBuffer.fill(0)
+
+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)
+ }
+
+ 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":4}],84:[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.
+ */
+
+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)
+
+ 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, b, c, d]
+}
+
+/*
+ * 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)
+}
+
+function md5_ff (a, b, c, d, x, s, t) {
+ return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t)
+}
+
+function md5_gg (a, b, c, d, x, s, t) {
+ return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t)
+}
+
+function md5_hh (a, b, c, d, x, s, t) {
+ return md5_cmn(b ^ c ^ d, a, b, x, s, t)
+}
+
+function md5_ii (a, b, c, d, x, s, t) {
+ return md5_cmn(c ^ (b | (~d)), a, b, x, s, t)
+}
+
+/*
+ * 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)
+}
+
+/*
+ * Bitwise rotate a 32-bit number to the left.
+ */
+function bit_rol (num, cnt) {
+ return (num << cnt) | (num >>> (32 - cnt))
+}
+
+module.exports = function md5 (buf) {
+ return makeHash(buf, core_md5)
+}
+
+},{"./make-hash":83}],85:[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')
+
+var sha = require('sha.js')
+
+var ZEROS = Buffer.alloc(128)
+
+function Hmac (alg, key) {
+ Base.call(this, 'digest')
+ if (typeof key === 'string') {
+ key = Buffer.from(key)
+ }
+
+ var blocksize = (alg === 'sha512' || alg === 'sha384') ? 128 : 64
+
+ 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)
+ }
+
+ 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
+ }
+ this._hash = alg === 'rmd160' ? new RIPEMD160() : sha(alg)
+ this._hash.update(ipad)
+}
+
+inherits(Hmac, Base)
+
+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)
+}
+
+},{"./legacy":86,"cipher-base":81,"create-hash/md5":84,"inherits":93,"ripemd160":97,"safe-buffer":98,"sha.js":100}],86:[function(require,module,exports){
+'use strict'
+var inherits = require('inherits')
+var Buffer = require('safe-buffer').Buffer
+
+var Base = require('cipher-base')
+
+var ZEROS = Buffer.alloc(128)
+var blocksize = 64
+
+function Hmac (alg, key) {
+ Base.call(this, 'digest')
+ if (typeof key === 'string') {
+ key = Buffer.from(key)
+ }
+
+ this._alg = alg
+ this._key = key
+
+ if (key.length > blocksize) {
+ key = alg(key)
+ } else if (key.length < blocksize) {
+ key = Buffer.concat([key, ZEROS], blocksize)
+ }
+
+ 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
+ }
+
+ this._hash = [ipad]
+}
+
+inherits(Hmac, Base)
+
+Hmac.prototype._update = function (data) {
+ this._hash.push(data)
+}
+
+Hmac.prototype._final = function () {
+ var h = this._alg(Buffer.concat(this._hash))
+ return this._alg(Buffer.concat([this._opad, h]))
+}
+module.exports = Hmac
+
+},{"cipher-base":81,"inherits":93,"safe-buffer":98}],87:[function(require,module,exports){
+var assert = require('assert')
+var BigInteger = require('bigi')
+
+var Point = require('./point')
+
+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
+
+ this.infinity = new Point(this, null, null, BigInteger.ZERO)
+
+ // result caching
+ this.pOverFour = p.add(BigInteger.ONE).shiftRight(2)
+
+ // determine size of p in bytes
+ this.pLength = Math.floor((this.p.bitLength() + 7) / 8)
+}
+
+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
+
+ var y = beta
+ if (beta.isEven() ^ !isOdd) {
+ y = this.p.subtract(y) // -y % p
+ }
+
+ return Point.fromAffine(this, x, y)
+}
+
+Curve.prototype.isInfinity = function (Q) {
+ if (Q === this.infinity) return true
+
+ return Q.z.signum() === 0 && Q.y.signum() !== 0
+}
+
+Curve.prototype.isOnCurve = function (Q) {
+ if (this.isInfinity(Q)) return true
+
+ var x = Q.affineX
+ var y = Q.affineY
+ var a = this.a
+ var b = this.b
+ var p = this.p
+
+ // 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
+
+ // 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)
+}
+
+/**
+ * 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')
+
+ // 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')
+
+ return true
+}
+
+module.exports = Curve
+
+},{"./point":91,"assert":1,"bigi":37}],88:[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"
+ }
+}
+
+},{}],89:[function(require,module,exports){
+var Point = require('./point')
+var Curve = require('./curve')
+
+var getCurveByName = require('./names')
+
+module.exports = {
+ Curve: Curve,
+ Point: Point,
+ getCurveByName: getCurveByName
+}
+
+},{"./curve":87,"./names":90,"./point":91}],90:[function(require,module,exports){
+var BigInteger = require('bigi')
+
+var curves = require('./curves.json')
+var Curve = require('./curve')
+
+function getCurveByName (name) {
+ var curve = curves[name]
+ if (!curve) return null
+
+ 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)
+
+ return new Curve(p, a, b, Gx, Gy, n, h)
+}
+
+module.exports = getCurveByName
+
+},{"./curve":87,"./curves.json":88,"bigi":37}],91:[function(require,module,exports){
+(function (Buffer){
+var assert = require('assert')
+var BigInteger = require('bigi')
+
+var THREE = BigInteger.valueOf(3)
+
+function Point (curve, x, y, z) {
+ assert.notStrictEqual(z, undefined, 'Missing Z coordinate')
+
+ this.curve = curve
+ this.x = x
+ this.y = y
+ this.z = z
+ this._zInv = null
+
+ this.compressed = true
+}
+
+Object.defineProperty(Point.prototype, 'zInv', {
+ get: function () {
+ if (this._zInv === null) {
+ this._zInv = this.z.modInverse(this.curve.p)
+ }
+
+ return this._zInv
+ }
+})
+
+Object.defineProperty(Point.prototype, 'affineX', {
+ get: function () {
+ return this.x.multiply(this.zInv).mod(this.curve.p)
+ }
+})
+
+Object.defineProperty(Point.prototype, 'affineY', {
+ get: function () {
+ return this.y.multiply(this.zInv).mod(this.curve.p)
+ }
+})
+
+Point.fromAffine = function (curve, x, y) {
+ return new Point(curve, x, y, BigInteger.ONE)
+}
+
+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)
+
+ // u = Y2 * Z1 - Y1 * Z2
+ var u = other.y.multiply(this.z).subtract(this.y.multiply(other.z)).mod(this.curve.p)
+
+ if (u.signum() !== 0) return false
+
+ // v = X2 * Z1 - X1 * Z2
+ var v = other.x.multiply(this.z).subtract(this.x.multiply(other.z)).mod(this.curve.p)
+
+ return v.signum() === 0
+}
+
+Point.prototype.negate = function () {
+ var y = this.curve.p.subtract(this.y)
+
+ return new Point(this.curve, this.x, y, this.z)
+}
+
+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
+ }
+
+ return this.curve.infinity // this = -b, so infinity
+ }
+
+ 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 Point(this.curve, x3, y3, z3)
+}
+
+Point.prototype.twice = function () {
+ if (this.curve.isInfinity(this)) return this
+ if (this.y.signum() === 0) return this.curve.infinity
+
+ var x1 = this.x
+ var y1 = this.y
+
+ var y1z1 = y1.multiply(this.z).mod(this.curve.p)
+ var y1sqz1 = y1z1.multiply(y1).mod(this.curve.p)
+ var a = this.curve.a
+
+ // 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)
+ }
+ }
+
+ 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
+ }
+
+ return R
+}
+
+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'
+
+ var x = this.affineX
+ var y = this.affineY
+ var byteLength = this.curve.pLength
+ var buffer
+
+ // 0x02/0x03 | X
+ if (compressed) {
+ buffer = new Buffer(1 + byteLength)
+ buffer.writeUInt8(y.isEven() ? 0x02 : 0x03, 0)
+
+ // 0x04 | X | Y
+ } else {
+ buffer = new Buffer(1 + byteLength + byteLength)
+ buffer.writeUInt8(0x04, 0)
+
+ y.toBuffer(byteLength).copy(buffer, 1 + byteLength)
+ }
+
+ x.toBuffer(byteLength).copy(buffer, 1)
+
+ 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
+
+}).call(this,require("buffer").Buffer)
+},{"assert":1,"bigi":37,"buffer":4}],92:[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":4,"inherits":93,"stream":27}],93:[function(require,module,exports){
+arguments[4][8][0].apply(exports,arguments)
+},{"dup":8}],94:[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":4}],95:[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":40}],96:[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":12,"safe-buffer":98}],97:[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":4,"hash-base":92,"inherits":93}],98:[function(require,module,exports){
+arguments[4][26][0].apply(exports,arguments)
+},{"buffer":4,"dup":26}],99:[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":4}],100:[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":101,"./sha1":102,"./sha224":103,"./sha256":104,"./sha384":105,"./sha512":106}],101:[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":99,"buffer":4,"inherits":93}],102:[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":99,"buffer":4,"inherits":93}],103:[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":99,"./sha256":104,"buffer":4,"inherits":93}],104:[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":99,"buffer":4,"inherits":93}],105:[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":99,"./sha512":106,"buffer":4,"inherits":93}],106:[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":99,"buffer":4,"inherits":93}],107:[function(require,module,exports){
+var inherits = require('inherits')
+var native = require('./native')
+
+function TfTypeError (type, value, valueTypeName) {
+ this.__error = Error.call(this)
+ this.__type = type
+ this.__value = value
+ this.__valueTypeName = valueTypeName
+
+ var message
+ Object.defineProperty(this, 'message', {
+ enumerable: true,
+ get: function () {
+ if (message) return message
+
+ valueTypeName = valueTypeName || getValueTypeName(value)
+ message = tfErrorString(type, value, valueTypeName)
+
+ return message
+ }
+ })
+}
+
+function TfPropertyTypeError (type, property, label, value, error, valueTypeName) {
+ this.__error = error || Error.call(this)
+ this.__label = label
+ this.__property = property
+ this.__type = type
+ this.__value = value
+ this.__valueTypeName = valueTypeName
+
+ var message
+ Object.defineProperty(this, 'message', {
+ enumerable: true,
+ get: function () {
+ if (message) return message
+ if (type) {
+ valueTypeName = valueTypeName || getValueTypeName(value)
+ message = tfPropertyErrorString(type, label, property, value, valueTypeName)
+ } else {
+ message = 'Unexpected property "' + property + '"'
+ }
+
+ return message
+ }
+ })
+}
+
+// inherit from Error, assign stack
+[TfTypeError, TfPropertyTypeError].forEach(function (tfErrorType) {
+ inherits(tfErrorType, Error)
+ Object.defineProperty(tfErrorType, 'stack', {
+ get: function () { return this.__error.stack }
+ })
+})
+
+function tfCustomError (expected, actual) {
+ return new TfTypeError(expected, {}, actual)
+}
+
+function tfSubError (e, property, label) {
+ // sub child?
+ if (e instanceof TfPropertyTypeError) {
+ property = property + '.' + e.__property
+ label = e.__label
+
+ return new TfPropertyTypeError(
+ e.__type, property, label, e.__value, e.__error, e.__valueTypeName
+ )
+ }
+
+ // child?
+ if (e instanceof TfTypeError) {
+ return new TfPropertyTypeError(
+ e.__type, property, label, e.__value, e.__error, e.__valueTypeName
+ )
+ }
+
+ return e
+}
+
+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 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)
+}
+
+module.exports = {
+ TfTypeError: TfTypeError,
+ TfPropertyTypeError: TfPropertyTypeError,
+ tfCustomError: tfCustomError,
+ tfSubError: tfSubError,
+ tfJSON: tfJSON,
+ getValueTypeName: getValueTypeName
+}
+
+},{"./native":110,"inherits":93}],108:[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 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,
+ 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":9,"./errors":107,"./native":110}],109:[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
+
+ 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, strict)) return false
+ if (NATIVE.Nil(value, strict)) 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) {
+ return types.every(function (type, i) {
+ try {
+ return typeforce(type, values[i], strict)
+ } catch (e) {
+ throw tfSubError(e, i)
+ }
+ }) && (!strict || values.length === arguments.length)
+ }
+ _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(compile(type.slice(1)))
+
+ return NATIVE[type] || TYPES.quacksLike(type)
+ } else if (type && NATIVE.Object(type)) {
+ if (NATIVE.Array(type)) return TYPES.arrayOf(compile(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":107,"./extra":108,"./native":110}],110:[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
+
+},{}],111:[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":4}],112:[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":80,"buffer":4}]},{},[33])(33)
+});
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
-
+
+
+