From 5c203fab6ac25fc76e2b805b7709d9b06ccdd995 Mon Sep 17 00:00:00 2001
From: Ian Coleman <ian@iancoleman.io>
Date: Mon, 16 Dec 2019 13:08:28 +1100
Subject: Add P2WSH and P2WSH-P2SH for bitcoin and testnet

Address generation still to come.
---
 src/index.html              |  2 ++
 src/js/index.js             | 56 +++++++++++++++++++++++++++++++++++++++++++++
 src/js/segwit-parameters.js | 56 +++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 114 insertions(+)

(limited to 'src')

diff --git a/src/index.html b/src/index.html
index 36e238f..61fe022 100644
--- a/src/index.html
+++ b/src/index.html
@@ -509,6 +509,8 @@
                                             <select class="form-control bip141-semantics">
                                                 <option value="p2wpkh">P2WPKH</option>
                                                 <option value="p2wpkh-p2sh" selected>P2WPKH nested in P2SH</option>
+                                                <option value="p2wsh">P2WSH</option>
+                                                <option value="p2wsh-p2sh">P2WSH nested in P2SH</option>
                                             </select>
                                         </div>
                                     </div>
diff --git a/src/js/index.js b/src/js/index.js
index 0b34ade..db47412 100644
--- a/src/js/index.js
+++ b/src/js/index.js
@@ -539,6 +539,22 @@
                 }
                 catch (e) {}
             }
+            // try parsing using p2wsh network params
+            if ("p2wsh" in n) {
+                try {
+                    bip32RootKey = bitcoinjs.bitcoin.HDNode.fromBase58(rootKeyBase58, n.p2wsh);
+                    return;
+                }
+                catch (e) {}
+            }
+            // try parsing using p2wsh-in-p2sh network params
+            if ("p2wshInP2sh" in n) {
+                try {
+                    bip32RootKey = bitcoinjs.bitcoin.HDNode.fromBase58(rootKeyBase58, n.p2wshInP2sh);
+                    return;
+                }
+                catch (e) {}
+            }
         }
         // try the network params as currently specified
         bip32RootKey = bitcoinjs.bitcoin.HDNode.fromBase58(rootKeyBase58, network);
@@ -681,6 +697,22 @@
                 }
                 catch (e) {}
             }
+            // try parsing using p2wsh network params
+            if ("p2wsh" in n) {
+                try {
+                    bitcoinjs.bitcoin.HDNode.fromBase58(rootKeyBase58, n.p2wsh);
+                    return "";
+                }
+                catch (e) {}
+            }
+            // try parsing using p2wsh-in-p2sh network params
+            if ("p2wshInP2sh" in n) {
+                try {
+                    bitcoinjs.bitcoin.HDNode.fromBase58(rootKeyBase58, n.p2wshInP2sh);
+                    return "";
+                }
+                catch (e) {}
+            }
         }
         // try the network params as currently specified
         try {
@@ -968,6 +1000,14 @@
             (bip141TabSelected() && DOM.bip141semantics.val() == "p2wpkh-p2sh");
     }
 
+    function p2wshSelected() {
+        return bip141TabSelected() && DOM.bip141semantics.val() == "p2wsh";
+    }
+
+    function p2wshInP2shSelected() {
+        return (bip141TabSelected() && DOM.bip141semantics.val() == "p2wsh-p2sh");
+    }
+
     function TableRow(index, isLast) {
 
         var self = this;
@@ -979,6 +1019,8 @@
         var segwitAvailable = networkHasSegwit();
         var isP2wpkh = p2wpkhSelected();
         var isP2wpkhInP2sh = p2wpkhInP2shSelected();
+        var isP2wsh = p2wshSelected();
+        var isP2wshInP2sh = p2wshInP2shSelected();
 
         function init() {
             calculateValues();
@@ -1109,6 +1151,14 @@
                         var scriptpubkey = bitcoinjs.bitcoin.script.scriptHash.output.encode(addressbytes);
                         address = bitcoinjs.bitcoin.address.fromOutputScript(scriptpubkey, network)
                     }
+                    else if (isP2wsh) {
+                        // TODO
+                        address = "";
+                    }
+                    else if (isP2wshInP2sh) {
+                        // TODO
+                        address = "";
+                    }
                 }
 
                 if ((networks[DOM.network.val()].name == "CRW - Crown")) {
@@ -1794,6 +1844,12 @@
         else if (p2wpkhInP2shSelected() && "p2wpkhInP2sh" in network) {
             network = network.p2wpkhInP2sh;
         }
+        else if (p2wshSelected() && "p2wsh" in network) {
+            network = network.p2wsh;
+        }
+        else if (p2wshInP2shSelected() && "p2wshInP2sh" in network) {
+            network = network.p2wshInP2sh;
+        }
     }
 
     function lastIndexInTable() {
diff --git a/src/js/segwit-parameters.js b/src/js/segwit-parameters.js
index de4d634..83d49da 100644
--- a/src/js/segwit-parameters.js
+++ b/src/js/segwit-parameters.js
@@ -56,6 +56,62 @@ bitcoinjs.bitcoin.networks.testnet.p2wpkhInP2sh = {
     wif: 0xef
 };
 
+// p2wsh
+
+bitcoinjs.bitcoin.networks.bitcoin.p2wsh = {
+    baseNetwork: "bitcoin",
+    messagePrefix: '\x18Bitcoin Signed Message:\n',
+    bech32: 'bc',
+    bip32: {
+        public: 0x02aa7ed3,
+        private: 0x02aa7a99
+    },
+    pubKeyHash: 0x00,
+    scriptHash: 0x05,
+    wif: 0x80
+};
+
+bitcoinjs.bitcoin.networks.testnet.p2wsh = {
+    baseNetwork: "testnet",
+    messagePrefix: '\x18Bitcoin Signed Message:\n',
+    bech32: 'tb',
+    bip32: {
+        public: 0x02575483,
+        private: 0x02575048
+    },
+    pubKeyHash: 0x6f,
+    scriptHash: 0xc4,
+    wif: 0xef
+};
+
+// p2wsh in p2sh
+
+bitcoinjs.bitcoin.networks.bitcoin.p2wshInP2sh = {
+    baseNetwork: "bitcoin",
+    messagePrefix: '\x18Bitcoin Signed Message:\n',
+    bech32: 'bc',
+    bip32: {
+        public: 0x0295b43f,
+        private: 0x0295b005
+    },
+    pubKeyHash: 0x00,
+    scriptHash: 0x05,
+    wif: 0x80
+};
+
+bitcoinjs.bitcoin.networks.testnet.p2wshInP2sh = {
+    baseNetwork: "testnet",
+    messagePrefix: '\x18Bitcoin Signed Message:\n',
+    bech32: 'tb',
+    bip32: {
+        public: 0x024289ef,
+        private: 0x024285b5
+    },
+    pubKeyHash: 0x6f,
+    scriptHash: 0xc4,
+    wif: 0xef
+};
+
 bitcoinjs.bitcoin.networks.litecoin.p2wpkh = {
     baseNetwork: "litecoin",
     messagePrefix: '\x19Litecoin Signed Message:\n',
-- 
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