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bitcoinjs-lib
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Merge justcoin/master

hk-custom-address
Kyle Drake 11 years ago
parent
6fb2c77690 a68b0910af
commit
fcf3fde089
50 changed files with 4561 additions and 5454 deletions
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  1. 6
      .travis.yml
  2. 53
      Jakefile.js
  3. 8
      README.md
  4. 3
      bitcoinjs-min.js
  5. 8
      build/bitcoinjs-exit-min.js
  6. 28
      build/bitcoinjs-min.js
  7. 0
      demo/split-key.html
  8. 18
      package.json
  9. 91
      src/address.js
  10. 170
      src/base58.js
  11. 175
      src/bitcoin.js
  12. 74
      src/convert.js
  13. 7
      src/crypto-js/crypto-min.js
  14. 226
      src/crypto-js/crypto.js
  15. 38
      src/crypto-js/hmac.js
  16. 375
      src/crypto-js/ripemd160.js
  17. 7
      src/crypto-js/sha256-min.js
  18. 257
      src/crypto-js/sha256.js
  19. 239
      src/crypto-js/sha512.js
  20. 718
      src/ecdsa.js
  21. 304
      src/eckey.js
  22. 235
      src/hdwallet.js
  23. 54
      src/index.js
  24. 208
      src/jsbn/ec.js
  25. 912
      src/jsbn/jsbn.js
  26. 656
      src/jsbn/jsbn2.js
  27. 8
      src/jsbn/prng4.js
  28. 19
      src/jsbn/rng.js
  29. 5
      src/jsbn/sec.js
  30. 95
      src/message.js
  31. 308
      src/opcode.js
  32. 661
      src/script.js
  33. 960
      src/transaction.js
  34. 4
      src/txdb.js
  35. 255
      src/util.js
  36. 430
      src/wallet.js
  37. 52
      test/address.js
  38. 22
      test/base58.js
  39. 28
      test/convert.js
  40. 23
      test/ec.js
  41. 43
      test/eckey.js
  42. 217
      test/hdwallet.js
  43. 36
      test/index.html
  44. 28
      test/jsbn.js
  45. 34
      test/message.js
  46. 68
      test/misc.js
  47. 1
      test/mocha.opts
  48. 112
      test/test.js
  49. 226
      vendor/qunit/qunit.css
  50. 1510
      vendor/qunit/qunit.js

6
.travis.yml
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@ -0,0 +1,6 @@
language: node_js
node_js:
- "0.11"
- "0.10"
- "0.8"
- "0.6"

53
Jakefile.js
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@ -1,53 +0,0 @@
var pkginfo = require('pkginfo')(module);
var minify = require('jake-uglify').minify;
var headerJS = "\
/**\n\
* BitcoinJS-lib v"+exports.version+"-default\n\
* Copyright (c) 2011 BitcoinJS Project\n\
* \n\
* This program is free software; you can redistribute it and/or modify\n\
* it under the terms of the MIT license.\n\
*/";
task({'default': [
'build/bitcoinjs-min.js',
'build/bitcoinjs-exit-min.js'
]});
desc('General-purpose build containing most features');
minify({'build/bitcoinjs-min.js': [
'src/crypto-js/crypto.js',
'src/crypto-js/sha256.js',
'src/crypto-js/ripemd160.js',
'src/jsbn/prng4.js',
'src/jsbn/rng.js',
'src/jsbn/jsbn.js',
'src/jsbn/jsbn2.js',
'src/jsbn/ec.js',
'src/jsbn/sec.js',
'src/events/eventemitter.js',
'src/bitcoin.js',
'src/util.js',
'src/base58.js',
'src/address.js',
'src/ecdsa.js',
'src/eckey.js',
'src/opcode.js',
'src/script.js',
'src/transaction.js',
'src/wallet.js',
'src/txdb.js'
]}, {
header: headerJS
});
desc('Exit node client implementation');
minify({'build/bitcoinjs-exit-min.js': [
'src/exit/client.js'
]}, {
header: headerJS
});

8
README.md
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@ -13,6 +13,14 @@ system in place.
Prototype software, use at your own peril.
# How to use
* Run `npm run-script compile` to compile to a browser-friendly minified
file. Once in the browser, the global Bitcoin object will contain everything
you need.
* To use in NodeJS, install this package as you would any other and
put in `var Bitcoin = require('bitcoinjs-lib')`.
# License
This library is free and open-source software released under the MIT

3
bitcoinjs-min.js
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File diff suppressed because one or more lines are too long

8
build/bitcoinjs-exit-min.js
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@ -1,8 +0,0 @@
/**
* BitcoinJS-lib v0.1.0-default
* Copyright (c) 2011 BitcoinJS Project
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the MIT license.
*/
(function(a,b,c,d,e){function f(a,b,c){this.setUri(a,b,c),this.unique=1,this.connected=!1,this.callbacks=[]}a.ExitNode=f,b.EventEmitter.augment(f),f.prototype.setUri=function(a,b,c){this.uri=(c?"https://":"http://")+a+":"+b},f.prototype.connect=function(a){this.wallet=a,delete c.sockets[this.uri],c.j=[],this.socket=c.connect(this.uri),this.socket.on("connect",d.proxy(this.handleConnect,this)),this.socket.on("error",function(){console.log("error, test")}),this.socket.on("message",d.proxy(this.handleMessage,this)),this.socket.on("disconnect",d.proxy(this.handleDisconnect,this))},f.prototype.disconnect=function(){this.socket&&(this.socket.disconnect(),this.socket=null,this.connected=!1),this.trigger("connectStatus",{status:"unknown"})},f.prototype.call=function(a,b,c){this.socket.send(d.toJSON({method:a,params:[b],id:this.unique})),c&&(this.callbacks[this.unique]=c),this.unique++},f.prototype.handleConnect=function(){var a=this;this.connected=!0},f.prototype.listen=function(a){self.call("pubkeysRegister",{keys:a.join(",")},function(a,b){if(a){console.error("Could not register public keys");return}self.call("pubkeysListen",{handle:b.handle},function(a,b){self.trigger("blockInit",{height:b.height}),self.trigger("txData",{confirmed:!0,txs:b.txs}),self.trigger("connectStatus",{status:"ok"})}),self.call("pubkeysUnconfirmed",{handle:b.handle},function(a,b){self.trigger("txData",{confirmed:!1,txs:b.txs})})})},f.prototype.handleMessage=function(a){"undefined"!=typeof a.result&&"function"==typeof this.callbacks[a.id]?this.callbacks[a.id](a.error,a.result):"undefined"!=typeof a.method&&this.trigger(a.method,a.params[0])},f.prototype.handleDisconnect=function(){},f.prototype.query=function(a,b,c,e){"function"==typeof c&&(e=c,c=!1),b=b||{},e="function"==typeof e?e:function(){};var f=this.uri+"/"+a;c&&(f+="?callback=?"),d.getJSON(f,b,e)}})("undefined"!=typeof Bitcoin?Bitcoin:module.exports,"undefined"!=typeof Bitcoin?Bitcoin:require("bitcoinjs-lib"),"undefined"!=typeof io?io:require("io"),jQuery,this)

28
build/bitcoinjs-min.js
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File diff suppressed because one or more lines are too long

0
demo/split-key.html
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18
package.json
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@ -2,6 +2,7 @@
"name": "bitcoinjs-lib",
"version": "0.1.3",
"description": "Client-side Bitcoin JavaScript library",
"main": "./src/index.js",
"keywords": [
"bitcoin",
@ -18,7 +19,20 @@
},
"devDependencies" : {
"pkginfo" : ">=0.2.1",
"jake-uglify" : ">=1.0.0"
"mocha": "1.8.1",
"istanbul": "0.1.30",
"uglify-js": "*",
"node-browserify": "https://github.com/substack/node-browserify/tarball/master"
},
"testling": {
"browsers": ["ie/9..latest", "firefox/15..latest", "chrome/22..latest"],
"harness" : "mocha-qunit",
"files": "test/*.js"
},
"scripts": {
"test": "istanbul test ./node_modules/.bin/_mocha -- --reporter list test/*.js",
"compile": "browserify src/index.js -s Bitcoin | uglifyjs > bitcoinjs-min.js"
}
}

91
src/address.js
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@ -1,10 +1,35 @@
Bitcoin.Address = function (bytes) {
if ("string" == typeof bytes) {
bytes = Bitcoin.Address.decodeString(bytes);
}
this.hash = bytes;
var base58 = require('./base58');
var Crypto = require('./crypto-js/crypto');
var conv = require('./convert');
var util = require('./util');
this.version = 0x00;
var address_types = {
prod: 0,
testnet: 111
};
var p2sh_types = {
prod: 5,
testnet: 196
};
var Address = function (bytes, version) {
if (arguments[0] instanceof Address) {
this.hash = arguments[0].hash;
this.version = arguments[0].version;
}
else if (typeof bytes === 'string') {
this.hash =
bytes.length <= 34 ? base58.checkDecode(bytes)
: bytes.length <= 40 ? conv.hexToBytes(bytes)
: util.error('Bad input');
this.version = version || this.hash.version || 0;
}
else {
this.hash = bytes;
this.version = version || 0;
}
};
/**
@ -12,46 +37,32 @@ Bitcoin.Address = function (bytes) {
*
* Returns the address as a base58-encoded string in the standardized format.
*/
Bitcoin.Address.prototype.toString = function () {
// Get a copy of the hash
var hash = this.hash.slice(0);
// Version
hash.unshift(this.version);
var checksum = Crypto.SHA256(Crypto.SHA256(hash, {asBytes: true}), {asBytes: true});
var bytes = hash.concat(checksum.slice(0,4));
Address.prototype.toString = function () {
return base58.checkEncode(this.hash.slice(0),this.version);
};
return Bitcoin.Base58.encode(bytes);
Address.prototype.getHash = function () {
return conv.bytesToHex(this.hash);
};
Bitcoin.Address.prototype.getHashBase64 = function () {
return Crypto.util.bytesToBase64(this.hash);
Address.getVersion = function(string) {
return base58.decode(string)[0];
}
Address.validate = function(string) {
try {
base58.checkDecode(string);
return true;
} catch (e) {
return false;
}
};
/**
* Parse a Bitcoin address contained in a string.
*/
Bitcoin.Address.decodeString = function (string) {
var bytes = Bitcoin.Base58.decode(string);
var hash = bytes.slice(0, 21);
var checksum = Crypto.SHA256(Crypto.SHA256(hash, {asBytes: true}), {asBytes: true});
if (checksum[0] != bytes[21] ||
checksum[1] != bytes[22] ||
checksum[2] != bytes[23] ||
checksum[3] != bytes[24]) {
throw "Checksum validation failed!";
}
var version = hash.shift();
if (version != 0) {
throw "Version "+version+" not supported!";
}
return hash;
Address.decodeString = function (string) {
return base58.checkDecode(string);
};
module.exports = Address;

170
src/base58.js
View File

@ -1,71 +1,119 @@
(function (Bitcoin) {
Bitcoin.Base58 = {
alphabet: "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz",
validRegex: /^[1-9A-HJ-NP-Za-km-z]+$/,
base: BigInteger.valueOf(58),
/**
* Convert a byte array to a base58-encoded string.
*
* Written by Mike Hearn for BitcoinJ.
* Copyright (c) 2011 Google Inc.
*
* Ported to JavaScript by Stefan Thomas.
*/
encode: function (input) {
var bi = BigInteger.fromByteArrayUnsigned(input);
var chars = [];
while (bi.compareTo(B58.base) >= 0) {
var mod = bi.mod(B58.base);
chars.unshift(B58.alphabet[mod.intValue()]);
bi = bi.subtract(mod).divide(B58.base);
}
chars.unshift(B58.alphabet[bi.intValue()]);
// Convert leading zeros too.
for (var i = 0; i < input.length; i++) {
// https://en.bitcoin.it/wiki/Base58Check_encoding
var BigInteger = require('./jsbn/jsbn');
var Crypto = require('./crypto-js/crypto');
var conv = require('./convert');
var alphabet = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";
var base = BigInteger.valueOf(58);
var positions = {};
for (var i=0 ; i < alphabet.length ; ++i) {
positions[alphabet[i]] = i;
}
// Convert a byte array to a base58-encoded string.
// Written by Mike Hearn for BitcoinJ.
// Copyright (c) 2011 Google Inc.
// Ported to JavaScript by Stefan Thomas.
module.exports.encode = function (input) {
var bi = BigInteger.fromByteArrayUnsigned(input);
var chars = [];
while (bi.compareTo(base) >= 0) {
var mod = bi.mod(base);
chars.push(alphabet[mod.intValue()]);
bi = bi.subtract(mod).divide(base);
}
chars.push(alphabet[bi.intValue()]);
// Convert leading zeros too.
for (var i = 0; i < input.length; i++) {
if (input[i] == 0x00) {
chars.unshift(B58.alphabet[0]);
chars.push(alphabet[0]);
} else break;
}
return chars.reverse().join('');
},
module.exports.encodeHex = function (input) {
return conv.bytesToHex(module.exports.encode(input));
}
// decode a base58 string into a byte array
// input should be a base58 encoded string
// @return Array
module.exports.decode = function (input) {
var base = BigInteger.valueOf(58);
var length = input.length;
var num = BigInteger.valueOf(0);
var leading_zero = 0;
var seen_other = false;
for (var i=0; i<length ; ++i) {
var chr = input[i];
var p = positions[chr];
// if we encounter an invalid character, decoding fails
if (p === undefined) {
throw new Error('invalid base58 string: ' + input);
}
return chars.join('');
},
/**
* Convert a base58-encoded string to a byte array.
*
* Written by Mike Hearn for BitcoinJ.
* Copyright (c) 2011 Google Inc.
*
* Ported to JavaScript by Stefan Thomas.
*/
decode: function (input) {
var bi = BigInteger.valueOf(0);
var leadingZerosNum = 0;
for (var i = input.length - 1; i >= 0; i--) {
var alphaIndex = B58.alphabet.indexOf(input[i]);
if (alphaIndex < 0) {
throw "Invalid character";
}
bi = bi.add(BigInteger.valueOf(alphaIndex)
.multiply(B58.base.pow(input.length - 1 -i)));
// This counts leading zero bytes
if (input[i] == "1") leadingZerosNum++;
else leadingZerosNum = 0;
num = num.multiply(base).add(BigInteger.valueOf(p));
if (chr == '1' && !seen_other) {
++leading_zero;
}
else {
seen_other = true;
}
var bytes = bi.toByteArrayUnsigned();
}
var bytes = num.toByteArrayUnsigned();
// Add leading zeros
while (leadingZerosNum-- > 0) bytes.unshift(0);
// remove leading zeros
while (leading_zero-- > 0) {
bytes.unshift(0);
}
return bytes;
return bytes;
}
module.exports.decodeHex = function (input) {
return module.exports.decode(conv.hexToBytes(input));
}
module.exports.checkEncode = function(input, vbyte) {
vbyte = vbyte || 0;
var front = [vbyte].concat(input);
var checksum = Crypto.SHA256(Crypto.SHA256(front, {asBytes: true}), {asBytes: true})
.slice(0,4);
return module.exports.encode(front.concat(checksum));
}
module.exports.checkEncodeHex = function (input, vbyte) {
return conv.bytesToHex(module.exports.encode(input));
}
module.exports.checkDecode = function(input) {
var bytes = module.exports.decode(input),
front = bytes.slice(0,bytes.length-4),
back = bytes.slice(bytes.length-4);
var checksum = Crypto.SHA256(Crypto.SHA256(front,{asBytes: true}), {asBytes: true})
.slice(0,4);
if (""+checksum != ""+back) {
throw new Error("Checksum failed");
}
};
var o = front.slice(1);
o.version = front[0];
return o;
}
module.exports.checkDecodeHex = function (input) {
return module.exports.checkDecode(conv.hexToBytes(input));
}
var B58 = Bitcoin.Base58;
})(
'undefined' != typeof Bitcoin ? Bitcoin : module.exports
);

175
src/bitcoin.js
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@ -1,175 +0,0 @@
(function (exports) {
var Bitcoin = exports;
if ('object' !== typeof module) {
Bitcoin.EventEmitter = EventEmitter;
}
})(
'object' === typeof module ? module.exports : (window.Bitcoin = {})
);
/*
function makeKeypair()
{
// Generate private key
var n = ecparams.getN();
var n1 = n.subtract(BigInteger.ONE);
var r = new BigInteger(n.bitLength(), rng);
var privateKey = r.mod(n1).add(BigInteger.ONE);
// Generate public key
var G = ecparams.getG();
var publicPoint = G.multiply(privateKey);
return {priv: privateKey, pubkey: publicPoint};
};
function serializeTransaction(tx)
{
var buffer = [];
buffer = buffer.concat(Crypto.util.wordsToBytes([parseInt(tx.version)]));
buffer = buffer.concat(numToVarInt(tx.ins.length));
for (var i = 0; i < tx.ins.length; i++) {
var txin = tx.ins[i];
buffer = buffer.concat(Crypto.util.base64ToBytes(txin.outpoint.hash));
buffer = buffer.concat(Crypto.util.wordsToBytes([parseInt(txin.index)]));
var scriptBytes = Crypto.util.base64ToBytes(txin.script);
buffer = buffer.concat(numToVarInt(scriptBytes.length));
buffer = buffer.concat(scriptBytes);
buffer = buffer.concat(Crypto.util.wordsToBytes([parseInt(txin.sequence)]));
}
buffer = buffer.concat(numToVarInt(tx.outs.length));
for (var i = 0; i < tx.outs.length; i++) {
var txout = tx.outs[i];
var valueHex = (new BigInteger(txout.value, 10)).toString(16);
while (valueHex.length < 16) valueHex = "0" + valueHex;
buffer = buffer.concat(Crypto.util.hexToBytes(valueHex));
var scriptBytes = Crypto.util.base64ToBytes(txout.script);
buffer = buffer.concat(numToVarInt(scriptBytes.length));
buffer = buffer.concat(scriptBytes);
}
buffer = buffer.concat(Crypto.util.wordsToBytes([parseInt(tx.lock_time)]));
return buffer;
};
var OP_CODESEPARATOR = 171;
var SIGHASH_ALL = 1;
var SIGHASH_NONE = 2;
var SIGHASH_SINGLE = 3;
var SIGHASH_ANYONECANPAY = 80;
function hashTransactionForSignature(scriptCode, tx, inIndex, hashType)
{
// TODO: We need to actually deep copy here
var txTmp = tx;
// In case concatenating two scripts ends up with two codeseparators,
// or an extra one at the end, this prevents all those possible incompatibilities.
scriptCode = scriptCode.filter(function (val) {
return val !== OP_CODESEPARATOR;
});
// Blank out other inputs' signatures
for (var i = 0; i < txTmp.ins.length; i++) {
txTmp.ins[i].script = Crypto.util.bytesToBase64([]);
}
txTmp.ins[inIndex].script = Crypto.util.bytesToBase64(scriptCode);
// Blank out some of the outputs
if ((hashType & 0x1f) == SIGHASH_NONE) {
txTmp.outs = [];
// Let the others update at will
for (var i = 0; i < txTmp.ins.length; i++)
if (i != inIndex)
txTmp.ins[i].sequence = 0;
} else if ((hashType & 0x1f) == SIGHASH_SINGLE) {
// TODO: Implement
}
// Blank out other inputs completely, not recommended for open transactions
if (hashType & SIGHASH_ANYONECANPAY) {
txTmp.ins = [txTmp.ins[inIndex]];
}
var buffer = serializeTransaction(txTmp);
buffer.concat(Crypto.util.wordsToBytes([parseInt(hashType)]));
console.log(buffer);
return Crypto.SHA256(Crypto.SHA256(buffer, {asBytes: true}), {asBytes: true});
};
function verifyTransactionSignature(tx) {
var hash = hashTransactionForSignature([], tx, 0, 0);
return Crypto.util.bytesToHex(hash);
};
function numToVarInt(i)
{
// TODO: THIS IS TOTALLY UNTESTED!
if (i < 0xfd) {
// unsigned char
return [i];
} else if (i <= 1<<16) {
// unsigned short (LE)
return [0xfd, i >>> 8, i & 255];
} else if (i <= 1<<32) {
// unsigned int (LE)
return [0xfe].concat(Crypto.util.wordsToBytes([i]));
} else {
// unsigned long long (LE)
return [0xff].concat(Crypto.util.wordsToBytes([i >>> 32, i]));
}
};
var testTx = {
"version":"1",
"lock_time":"0",
"block": {
"hash":"N/A",
"height":115806
},
"index":6,
"hash":"WUFzjKubG1kqfJWMb4qZdlhU2F3l5NGXN7AUg8Jwl14=",
"ins":[{
"outpoint":{
"hash":"nqcbMM1oRhfLdZga11q7x0CpUMujm+vtxHXO9V0gnwE=",
"index":0
},
"script":"RzBEAiB2XXkx1pca9SlfCmCGNUVf+h2sAFBttcxG1VnypIcvEgIgXrOp7LSdYBYp3nPsQAz8BOLD3K4pAlXfZImP1rkzk2EBQQRi7NcODzNfnVqLtG79Axp5UF6EhFIhCmzqKqssfKpfCIOmzCuXEeDFUFvFzeGLJx5N+wp2qRS1TqYezGD3yERk",
"sequence":4294967295
}],
"outs":[{
"value":"3000000000",
"script":"dqkUBLZwqhAPRVgZvwI8MN5gLHbU8NOIrA=="
},{
"value":"25937000000",
"script":"dqkUQ82gJ0O5vOBg6yK5/yorLLV5zLKIrA=="
}]
};
TODO: Make this stuff into test cases ;)
$(function () {
var key = new Bitcoin.ECKey(Crypto.util.hexToBytes("5c0b98e524ad188ddef35dc6abba13c34a351a05409e5d285403718b93336a4a"));
key = new Bitcoin.ECKey(Crypto.util.hexToBytes("180cb41c7c600be951b5d3d0a7334acc7506173875834f7a6c4c786a28fcbb19"));
//console.log(key.getBitcoinAddress().toString());
//var message = Crypto.util.hexToBytes("2aec28d323ee7b06a799d540d224b351161fe48967174ca5e43164e86137da11");
//message = [0];
//var out = key.sign(message);
//console.log("pubkey: "+Crypto.util.bytesToHex(key.getPub()));
//console.log("sig: "+Crypto.util.bytesToHex(out));
//console.log(key.verify(message, out));
//console.log(Bitcoin.ECDSA.verify(message, Crypto.util.hexToBytes("3046022100dffbc26774fc841bbe1c1362fd643609c6e42dcb274763476d87af2c0597e89e022100c59e3c13b96b316cae9fa0ab0260612c7a133a6fe2b3445b6bf80b3123bf274d"), Crypto.util.hexToBytes("0401de173aa944eacf7e44e5073baca93fb34fe4b7897a1c82c92dfdc8a1f75ef58cd1b06e8052096980cb6e1ad6d3df143c34b3d7394bae2782a4df570554c2fb")));
//console.log(Bitcoin.ECDSA.verify(Crypto.util.hexToBytes("230aba77ccde46bb17fcb0295a92c0cc42a6ea9f439aaadeb0094625f49e6ed8"), Crypto.util.hexToBytes("3046022100a3ee5408f0003d8ef00ff2e0537f54ba09771626ff70dca1f01296b05c510e85022100d4dc70a5bb50685b65833a97e536909a6951dd247a2fdbde6688c33ba6d6407501"),Crypto.util.hexToBytes("04a19c1f07c7a0868d86dbb37510305843cc730eb3bea8a99d92131f44950cecd923788419bfef2f635fad621d753f30d4b4b63b29da44b4f3d92db974537ad5a4")));
//console.log(Bitcoin.ECDSA.verify(Crypto.util.hexToBytes("c2c75bb77d7a5acddceb1d45ceef58e7451fd0d3abc9d4c16df7848eefafe00d"), Crypto.util.hexToBytes("3045022100ff9362dadcbf1f6ef954bc8eb27144bbb4f49abd32be1eb04c311151dcf4bcf802205112c2ca6a25aefb8be98bf460c5a9056c01253f31e118d80b81ec9604e3201a01"),Crypto.util.hexToBytes("04fe62ce7892ec209310c176ef7f06565865e286e8699e884603657efa9aa51086785099d544d4e04f1f7b4b065205c1783fade8daf4ba1e0d1962292e8eb722cd")));
});
//
*/

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src/convert.js
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// convert to/from various values
var base64map = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
String.prototype.lpad = function(padString, length) {
var str = this;
while (str.length < length) str = padString + str;
return str;
}
// Convert a byte array to a hex string
module.exports.bytesToHex = function(bytes) {
return bytes.map(function(x) { return x.toString(16).lpad('0',2) }).join('');
};
// Convert a hex string to a byte array
module.exports.hexToBytes = function(hex) {
return hex.match(/../g).map(function(x) { return parseInt(x,16) });
}
// Convert a byte array to a base-64 string
module.exports.bytesToBase64 = function(bytes) {
for(var base64 = [], i = 0; i < bytes.length; i += 3) {
var triplet = (bytes[i] << 16) | (bytes[i + 1] << 8) | bytes[i + 2];
for (var j = 0; j < 4; j++) {
if (i * 8 + j * 6 <= bytes.length * 8)
base64.push(base64map.charAt((triplet >>> 6 * (3 - j)) & 0x3F));
else base64.push("=");
}
}
return base64.join("");
}
// Convert a base-64 string to a byte array
module.exports.base64ToBytes = function(base64) {
// Remove non-base-64 characters
base64 = base64.replace(/[^A-Z0-9+\/]/ig, "");
for (var bytes = [], i = 0, imod4 = 0; i < base64.length; imod4 = ++i % 4) {
if (imod4 == 0) continue;
bytes.push(((base64map.indexOf(base64.charAt(i - 1)) & (Math.pow(2, -2 * imod4 + 8) - 1)) << (imod4 * 2)) |
(base64map.indexOf(base64.charAt(i)) >>> (6 - imod4 * 2)));
}
return bytes;
}
// Hex only (allowing bin would be potentially risky, as 01010101 = \x01 * 4 or 85)
module.exports.coerceToBytes = function(input) {
if (typeof input == "string") return module.exports.hexToBytes(input);
return input;
}
module.exports.binToBytes = function(bin) {
return bin.match(/......../g).map(function(x) { return parseInt(x,2) });
}
module.exports.bytesToBin = function(bytes) {
return bytes.map(function(x) { return x.toString(2).lpad('0',8) }).join('');
}
module.exports.bytesToString = function(bytes) {
return bytes.map(function(x){ return String.fromCharCode(x) }).join('');
}
module.exports.stringToBytes = function(string) {
return string.split('').map(function(x) { return x.charCodeAt(0) });
}
// utf8

7
src/crypto-js/crypto-min.js
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/*
* Crypto-JS v2.0.0
* http://code.google.com/p/crypto-js/
* Copyright (c) 2009, Jeff Mott. All rights reserved.
* http://code.google.com/p/crypto-js/wiki/License
*/
(function(){var c="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";var d=window.Crypto={};var a=d.util={rotl:function(h,g){return(h<<g)|(h>>>(32-g))},rotr:function(h,g){return(h<<(32-g))|(h>>>g)},endian:function(h){if(h.constructor==Number){return a.rotl(h,8)&16711935|a.rotl(h,24)&4278255360}for(var g=0;g<h.length;g++){h[g]=a.endian(h[g])}return h},randomBytes:function(h){for(var g=[];h>0;h--){g.push(Math.floor(Math.random()*256))}return g},bytesToWords:function(h){for(var k=[],j=0,g=0;j<h.length;j++,g+=8){k[g>>>5]|=h[j]<<(24-g%32)}return k},wordsToBytes:function(i){for(var h=[],g=0;g<i.length*32;g+=8){h.push((i[g>>>5]>>>(24-g%32))&255)}return h},bytesToHex:function(g){for(var j=[],h=0;h<g.length;h++){j.push((g[h]>>>4).toString(16));j.push((g[h]&15).toString(16))}return j.join("")},hexToBytes:function(h){for(var g=[],i=0;i<h.length;i+=2){g.push(parseInt(h.substr(i,2),16))}return g},bytesToBase64:function(h){if(typeof btoa=="function"){return btoa(e.bytesToString(h))}for(var g=[],l=0;l<h.length;l+=3){var m=(h[l]<<16)|(h[l+1]<<8)|h[l+2];for(var k=0;k<4;k++){if(l*8+k*6<=h.length*8){g.push(c.charAt((m>>>6*(3-k))&63))}else{g.push("=")}}}return g.join("")},base64ToBytes:function(h){if(typeof atob=="function"){return e.stringToBytes(atob(h))}h=h.replace(/[^A-Z0-9+\/]/ig,"");for(var g=[],j=0,k=0;j<h.length;k=++j%4){if(k==0){continue}g.push(((c.indexOf(h.charAt(j-1))&(Math.pow(2,-2*k+8)-1))<<(k*2))|(c.indexOf(h.charAt(j))>>>(6-k*2)))}return g}};d.mode={};var b=d.charenc={};var f=b.UTF8={stringToBytes:function(g){return e.stringToBytes(unescape(encodeURIComponent(g)))},bytesToString:function(g){return decodeURIComponent(escape(e.bytesToString(g)))}};var e=b.Binary={stringToBytes:function(j){for(var g=[],h=0;h<j.length;h++){g.push(j.charCodeAt(h))}return g},bytesToString:function(g){for(var j=[],h=0;h<g.length;h++){j.push(String.fromCharCode(g[h]))}return j.join("")}}})();

226
src/crypto-js/crypto.js
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/*!
* Crypto-JS v2.0.0
* http://code.google.com/p/crypto-js/
* Copyright (c) 2009, Jeff Mott. All rights reserved.
* http://code.google.com/p/crypto-js/wiki/License
*/
(function(){
var base64map = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
// Global Crypto object
var Crypto = window.Crypto = {};
// Crypto utilities
var util = Crypto.util = {
// Bit-wise rotate left
rotl: function (n, b) {
return (n << b) | (n >>> (32 - b));
},
// Bit-wise rotate right
rotr: function (n, b) {
return (n << (32 - b)) | (n >>> b);
},
// Swap big-endian to little-endian and vice versa
endian: function (n) {
// If number given, swap endian
if (n.constructor == Number) {
return util.rotl(n, 8) & 0x00FF00FF |
util.rotl(n, 24) & 0xFF00FF00;
}
// Else, assume array and swap all items
for (var i = 0; i < n.length; i++)
n[i] = util.endian(n[i]);
return n;
},
// Generate an array of any length of random bytes
randomBytes: function (n) {
for (var bytes = []; n > 0; n--)
bytes.push(Math.floor(Math.random() * 256));
return bytes;
},
// Convert a byte array to big-endian 32-bit words
bytesToWords: function (bytes) {
for (var words = [], i = 0, b = 0; i < bytes.length; i++, b += 8)
words[b >>> 5] |= bytes[i] << (24 - b % 32);
return words;
},
// Convert big-endian 32-bit words to a byte array
wordsToBytes: function (words) {
for (var bytes = [], b = 0; b < words.length * 32; b += 8)
bytes.push((words[b >>> 5] >>> (24 - b % 32)) & 0xFF);
return bytes;
},
// Convert a byte array to a hex string
bytesToHex: function (bytes) {
for (var hex = [], i = 0; i < bytes.length; i++) {
hex.push((bytes[i] >>> 4).toString(16));
hex.push((bytes[i] & 0xF).toString(16));
}
return hex.join("");
},
// Convert a hex string to a byte array
hexToBytes: function (hex) {
for (var bytes = [], c = 0; c < hex.length; c += 2)
bytes.push(parseInt(hex.substr(c, 2), 16));
return bytes;
},
// Convert a byte array to a base-64 string
bytesToBase64: function (bytes) {
// Use browser-native function if it exists
if (typeof btoa == "function") return btoa(Binary.bytesToString(bytes));
for(var base64 = [], i = 0; i < bytes.length; i += 3) {
var triplet = (bytes[i] << 16) | (bytes[i + 1] << 8) | bytes[i + 2];
for (var j = 0; j < 4; j++) {
if (i * 8 + j * 6 <= bytes.length * 8)
base64.push(base64map.charAt((triplet >>> 6 * (3 - j)) & 0x3F));
else base64.push("=");
}
}
return base64.join("");
},
// Convert a base-64 string to a byte array
base64ToBytes: function (base64) {
// Use browser-native function if it exists
if (typeof atob == "function") return Binary.stringToBytes(atob(base64));
// Remove non-base-64 characters
base64 = base64.replace(/[^A-Z0-9+\/]/ig, "");
for (var bytes = [], i = 0, imod4 = 0; i < base64.length; imod4 = ++i % 4) {
if (imod4 == 0) continue;
bytes.push(((base64map.indexOf(base64.charAt(i - 1)) & (Math.pow(2, -2 * imod4 + 8) - 1)) << (imod4 * 2)) |
(base64map.indexOf(base64.charAt(i)) >>> (6 - imod4 * 2)));
}
return bytes;
}
};
// Crypto mode namespace
Crypto.mode = {};
// Crypto character encodings
var charenc = Crypto.charenc = {};
// UTF-8 encoding
var UTF8 = charenc.UTF8 = {
// Convert a string to a byte array
stringToBytes: function (str) {
return Binary.stringToBytes(unescape(encodeURIComponent(str)));
},
// Convert a byte array to a string
bytesToString: function (bytes) {
return decodeURIComponent(escape(Binary.bytesToString(bytes)));
}
};
// Binary encoding
var Binary = charenc.Binary = {
// Convert a string to a byte array
stringToBytes: function (str) {
for (var bytes = [], i = 0; i < str.length; i++)
bytes.push(str.charCodeAt(i));
return bytes;
},
// Convert a byte array to a string
bytesToString: function (bytes) {
for (var str = [], i = 0; i < bytes.length; i++)
str.push(String.fromCharCode(bytes[i]));
return str.join("");
}
};
})();
/*!
* Crypto-JS v2.0.0
* http://code.google.com/p/crypto-js/
* Copyright (c) 2009, Jeff Mott. All rights reserved.
* http://code.google.com/p/crypto-js/wiki/License
*/
// Global Crypto object
var Crypto = module.exports = {};
// Crypto utilities
var util = Crypto.util = {
// Generate an array of any length of random bytes
randomBytes: function (n) {
for (var bytes = []; n > 0; n--)
bytes.push(Math.floor(Math.random() * 256));
return bytes;
},
};
// Crypto mode namespace
Crypto.mode = {};
// Crypto character encodings
var charenc = Crypto.charenc = {};
// UTF-8 encoding
var UTF8 = charenc.UTF8 = {
// Convert a string to a byte array
stringToBytes: function (str) {
return Binary.stringToBytes(unescape(encodeURIComponent(str)));
},
// Convert a byte array to a string
bytesToString: function (bytes) {
return decodeURIComponent(escape(Binary.bytesToString(bytes)));
}
};
// Binary encoding
var Binary = charenc.Binary = {
// Convert a string to a byte array
stringToBytes: function (str) {
for (var bytes = [], i = 0; i < str.length; i++)
bytes.push(str.charCodeAt(i));
return bytes;
},
// Convert a byte array to a string
bytesToString: function (bytes) {
for (var str = [], i = 0; i < bytes.length; i++)
str.push(String.fromCharCode(bytes[i]));
return str.join("");
}
};
module.exports.SHA256 = require('./sha256');
module.exports.SHA512 = require('./sha512');
module.exports.RIPEMD160 = require('./ripemd160');
module.exports.HMAC = require('./hmac');

38
src/crypto-js/hmac.js
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/*!
* Crypto-JS v2.0.0
* http://code.google.com/p/crypto-js/
* Copyright (c) 2009, Jeff Mott. All rights reserved.
* http://code.google.com/p/crypto-js/wiki/License
*/
var conv = require('../convert'),
util = require('../util');
// Shortcuts
module.exports = function (hasher, message, key, options) {
// Convert to byte arrays
if (message.constructor == String) message = conv.stringToBytes(message);
if (key.constructor == String) key = conv.stringToBytes(key);
/* else, assume byte arrays already */
// Allow arbitrary length keys
if (key.length > hasher._blocksize)
key = hasher(key, { asBytes: true });
// XOR keys with pad constants
var okey = key.slice(0),
ikey = key.slice(0);
for (var i = 0; i < hasher._blocksize; i++) {
okey[i] ^= 0x5C;
ikey[i] ^= 0x36;
}
var hmacbytes = hasher(okey.concat(hasher(ikey.concat(message), { asBytes: true })), { asBytes: true });
return options && options.asBytes ? hmacbytes :
options && options.asString ? conv.bytesToString(hmacbytes) :
conv.bytesToHex(hmacbytes);
};

375
src/crypto-js/ripemd160.js
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/*!
* Crypto-JS v2.0.0
* http://code.google.com/p/crypto-js/
* Copyright (c) 2009, Jeff Mott. All rights reserved.
* http://code.google.com/p/crypto-js/wiki/License
*
* A JavaScript implementation of the RIPEMD-160 Algorithm
* Version 2.2 Copyright Jeremy Lin, Paul Johnston 2000 - 2009.
* Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
* Distributed under the BSD License
* See http://pajhome.org.uk/crypt/md5 for details.
* Also http://www.ocf.berkeley.edu/~jjlin/jsotp/
* Ported to Crypto-JS by Stefan Thomas.
/*
CryptoJS v3.1.2
code.google.com/p/crypto-js
(c) 2009-2013 by Jeff Mott. All rights reserved.
code.google.com/p/crypto-js/wiki/License
*/
/** @preserve
(c) 2012 by Cédric Mesnil. All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
- Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
var conv = require('../convert');
var UTF8 = require('./crypto').charenc.UTF8;
// Constants table
var zl = [
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8,
3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12,
1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2,
4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13];
var zr = [
5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12,
6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2,
15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13,
8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14,
12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11];
var sl = [
11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8,
7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12,
11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5,
11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12,
9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6 ];
var sr = [
8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6,
9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11,
9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5,
15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8,
8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11 ];
var hl = [ 0x00000000, 0x5A827999, 0x6ED9EBA1, 0x8F1BBCDC, 0xA953FD4E];
var hr = [ 0x50A28BE6, 0x5C4DD124, 0x6D703EF3, 0x7A6D76E9, 0x00000000];
var bytesToWords = function (bytes) {
var words = [];
for (var i = 0, b = 0; i < bytes.length; i++, b += 8) {
words[b >>> 5] |= bytes[i] << (24 - b % 32);
}
return words;
};
var wordsToBytes = function (words) {
var bytes = [];
for (var b = 0; b < words.length * 32; b += 8) {
bytes.push((words[b >>> 5] >>> (24 - b % 32)) & 0xFF);
}
return bytes;
};
var processBlock = function (H, M, offset) {
// Swap endian
for (var i = 0; i < 16; i++) {
var offset_i = offset + i;
var M_offset_i = M[offset_i];
// Swap
M[offset_i] = (
(((M_offset_i << 8) | (M_offset_i >>> 24)) & 0x00ff00ff) |
(((M_offset_i << 24) | (M_offset_i >>> 8)) & 0xff00ff00)
);
}
// Working variables
var al, bl, cl, dl, el;
var ar, br, cr, dr, er;
ar = al = H[0];
br = bl = H[1];
cr = cl = H[2];
dr = dl = H[3];
er = el = H[4];
// Computation
var t;
for (var i = 0; i < 80; i += 1) {
t = (al + M[offset+zl[i]])|0;
if (i<16){
t += f1(bl,cl,dl) + hl[0];
} else if (i<32) {
t += f2(bl,cl,dl) + hl[1];
} else if (i<48) {
t += f3(bl,cl,dl) + hl[2];
} else if (i<64) {
t += f4(bl,cl,dl) + hl[3];
} else {// if (i<80) {
t += f5(bl,cl,dl) + hl[4];
}
t = t|0;
t = rotl(t,sl[i]);
t = (t+el)|0;
al = el;
el = dl;
dl = rotl(cl, 10);
cl = bl;
bl = t;
t = (ar + M[offset+zr[i]])|0;
if (i<16){
t += f5(br,cr,dr) + hr[0];
} else if (i<32) {
t += f4(br,cr,dr) + hr[1];
} else if (i<48) {
t += f3(br,cr,dr) + hr[2];
} else if (i<64) {
t += f2(br,cr,dr) + hr[3];
} else {// if (i<80) {
t += f1(br,cr,dr) + hr[4];
}
t = t|0;
t = rotl(t,sr[i]) ;
t = (t+er)|0;
ar = er;
er = dr;
dr = rotl(cr, 10);
cr = br;
br = t;
}
// Intermediate hash value
t = (H[1] + cl + dr)|0;
H[1] = (H[2] + dl + er)|0;
H[2] = (H[3] + el + ar)|0;
H[3] = (H[4] + al + br)|0;
H[4] = (H[0] + bl + cr)|0;
H[0] = t;
};
function f1(x, y, z) {
return ((x) ^ (y) ^ (z));
}
function f2(x, y, z) {
return (((x)&(y)) | ((~x)&(z)));
}
function f3(x, y, z) {
return (((x) | (~(y))) ^ (z));
}
function f4(x, y, z) {
return (((x) & (z)) | ((y)&(~(z))));
}
function f5(x, y, z) {
return ((x) ^ ((y) |(~(z))));
}
function rotl(x,n) {
return (x<<n) | (x>>>(32-n));
}
/**
* RIPEMD160 hash algorithm.
*/
module.exports = function(message, options) {
if (message.constructor === String) {
message = UTF8.stringToBytes(message);
}
var H = [0x67452301, 0xEFCDAB89, 0x98BADCFE, 0x10325476, 0xC3D2E1F0];
var m = bytesToWords(message);
var nBitsLeft = message.length * 8;
var nBitsTotal = message.length * 8;
// Add padding
m[nBitsLeft >>> 5] |= 0x80 << (24 - nBitsLeft % 32);
m[(((nBitsLeft + 64) >>> 9) << 4) + 14] = (
(((nBitsTotal << 8) | (nBitsTotal >>> 24)) & 0x00ff00ff) |
(((nBitsTotal << 24) | (nBitsTotal >>> 8)) & 0xff00ff00)
);
for (var i=0 ; i<m.length; i += 16) {
processBlock(H, m, i);
}
// Swap endian
for (var i = 0; i < 5; i++) {
// Shortcut
var H_i = H[i];
// Swap
H[i] = (((H_i << 8) | (H_i >>> 24)) & 0x00ff00ff) |
(((H_i << 24) | (H_i >>> 8)) & 0xff00ff00);
}
(function () {
// Shortcuts
var C = Crypto,
util = C.util,
charenc = C.charenc,
UTF8 = charenc.UTF8,
Binary = charenc.Binary;
// Convert a byte array to little-endian 32-bit words
util.bytesToLWords = function (bytes) {
var output = Array(bytes.length >> 2);
for (var i = 0; i < output.length; i++)
output[i] = 0;
for (var i = 0; i < bytes.length * 8; i += 8)
output[i>>5] |= (bytes[i / 8] & 0xFF) << (i%32);
return output;
};
// Convert little-endian 32-bit words to a byte array
util.lWordsToBytes = function (words) {
var output = [];
for (var i = 0; i < words.length * 32; i += 8)
output.push((words[i>>5] >>> (i % 32)) & 0xff);
return output;
};
// Public API
var RIPEMD160 = C.RIPEMD160 = function (message, options) {
var digestbytes = util.lWordsToBytes(RIPEMD160._rmd160(message));
return options && options.asBytes ? digestbytes :
options && options.asString ? Binary.bytesToString(digestbytes) :
util.bytesToHex(digestbytes);
};
// The core
RIPEMD160._rmd160 = function (message)
{
// Convert to byte array
if (message.constructor == String) message = UTF8.stringToBytes(message);
var x = util.bytesToLWords(message),
len = message.length * 8;
/* append padding */
x[len >> 5] |= 0x80 << (len % 32);
x[(((len + 64) >>> 9) << 4) + 14] = len;
var h0 = 0x67452301;
var h1 = 0xefcdab89;
var h2 = 0x98badcfe;
var h3 = 0x10325476;
var h4 = 0xc3d2e1f0;
for (var i = 0; i < x.length; i += 16) {
var T;
var A1 = h0, B1 = h1, C1 = h2, D1 = h3, E1 = h4;
var A2 = h0, B2 = h1, C2 = h2, D2 = h3, E2 = h4;
for (var j = 0; j <= 79; ++j) {
T = safe_add(A1, rmd160_f(j, B1, C1, D1));
T = safe_add(T, x[i + rmd160_r1[j]]);
T = safe_add(T, rmd160_K1(j));
T = safe_add(bit_rol(T, rmd160_s1[j]), E1);
A1 = E1; E1 = D1; D1 = bit_rol(C1, 10); C1 = B1; B1 = T;
T = safe_add(A2, rmd160_f(79-j, B2, C2, D2));
T = safe_add(T, x[i + rmd160_r2[j]]);
T = safe_add(T, rmd160_K2(j));
T = safe_add(bit_rol(T, rmd160_s2[j]), E2);
A2 = E2; E2 = D2; D2 = bit_rol(C2, 10); C2 = B2; B2 = T;
}
T = safe_add(h1, safe_add(C1, D2));
h1 = safe_add(h2, safe_add(D1, E2));
h2 = safe_add(h3, safe_add(E1, A2));
h3 = safe_add(h4, safe_add(A1, B2));
h4 = safe_add(h0, safe_add(B1, C2));
h0 = T;
}
return [h0, h1, h2, h3, h4];
}
function rmd160_f(j, x, y, z)
{
return ( 0 <= j && j <= 15) ? (x ^ y ^ z) :
(16 <= j && j <= 31) ? (x & y) | (~x & z) :
(32 <= j && j <= 47) ? (x | ~y) ^ z :
(48 <= j && j <= 63) ? (x & z) | (y & ~z) :
(64 <= j && j <= 79) ? x ^ (y | ~z) :
"rmd160_f: j out of range";
}
function rmd160_K1(j)
{
return ( 0 <= j && j <= 15) ? 0x00000000 :
(16 <= j && j <= 31) ? 0x5a827999 :
(32 <= j && j <= 47) ? 0x6ed9eba1 :
(48 <= j && j <= 63) ? 0x8f1bbcdc :
(64 <= j && j <= 79) ? 0xa953fd4e :
"rmd160_K1: j out of range";
}
function rmd160_K2(j)
{
return ( 0 <= j && j <= 15) ? 0x50a28be6 :
(16 <= j && j <= 31) ? 0x5c4dd124 :
(32 <= j && j <= 47) ? 0x6d703ef3 :
(48 <= j && j <= 63) ? 0x7a6d76e9 :
(64 <= j && j <= 79) ? 0x00000000 :
"rmd160_K2: j out of range";
}
var rmd160_r1 = [
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8,
3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12,
1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2,
4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13
];
var rmd160_r2 = [
5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12,
6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2,
15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13,
8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14,
12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11
];
var rmd160_s1 = [
11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8,
7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12,
11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5,
11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12,
9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6
];
var rmd160_s2 = [
8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6,
9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11,
9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5,
15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8,
8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11
];
/*
* 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));
}
})();
var digestbytes = wordsToBytes(H);
return options && options.asBytes ? digestbytes :
options && options.asString ? Binary.bytesToString(digestbytes) :
conv.bytesToHex(digestbytes);
};

7
src/crypto-js/sha256-min.js
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@ -1,7 +0,0 @@
/*
* Crypto-JS v2.0.0
* http://code.google.com/p/crypto-js/
* Copyright (c) 2009, Jeff Mott. All rights reserved.
* http://code.google.com/p/crypto-js/wiki/License
*/
(function(){var g=Crypto,b=g.util,c=g.charenc,f=c.UTF8,e=c.Binary;var a=[1116352408,1899447441,3049323471,3921009573,961987163,1508970993,2453635748,2870763221,3624381080,310598401,607225278,1426881987,1925078388,2162078206,2614888103,3248222580,3835390401,4022224774,264347078,604807628,770255983,1249150122,1555081692,1996064986,2554220882,2821834349,2952996808,3210313671,3336571891,3584528711,113926993,338241895,666307205,773529912,1294757372,1396182291,1695183700,1986661051,2177026350,2456956037,2730485921,2820302411,3259730800,3345764771,3516065817,3600352804,4094571909,275423344,430227734,506948616,659060556,883997877,958139571,1322822218,1537002063,1747873779,1955562222,2024104815,2227730452,2361852424,2428436474,2756734187,3204031479,3329325298];var d=g.SHA256=function(j,h){var i=b.wordsToBytes(d._sha256(j));return h&&h.asBytes?i:h&&h.asString?e.bytesToString(i):b.bytesToHex(i)};d._sha256=function(q){if(q.constructor==String){q=f.stringToBytes(q)}var y=b.bytesToWords(q),z=q.length*8,r=[1779033703,3144134277,1013904242,2773480762,1359893119,2600822924,528734635,1541459225],s=[],K,J,I,G,F,E,D,C,B,A,p,o;y[z>>5]|=128<<(24-z%32);y[((z+64>>9)<<4)+15]=z;for(var B=0;B<y.length;B+=16){K=r[0];J=r[1];I=r[2];G=r[3];F=r[4];E=r[5];D=r[6];C=r[7];for(var A=0;A<64;A++){if(A<16){s[A]=y[A+B]}else{var n=s[A-15],u=s[A-2],M=((n<<25)|(n>>>7))^((n<<14)|(n>>>18))^(n>>>3),L=((u<<15)|(u>>>17))^((u<<13)|(u>>>19))^(u>>>10);s[A]=M+(s[A-7]>>>0)+L+(s[A-16]>>>0)}var t=F&E^~F&D,k=K&J^K&I^J&I,x=((K<<30)|(K>>>2))^((K<<19)|(K>>>13))^((K<<10)|(K>>>22)),v=((F<<26)|(F>>>6))^((F<<21)|(F>>>11))^((F<<7)|(F>>>25));p=(C>>>0)+v+t+(a[A])+(s[A]>>>0);o=x+k;C=D;D=E;E=F;F=G+p;G=I;I=J;J=K;K=p+o}r[0]+=K;r[1]+=J;r[2]+=I;r[3]+=G;r[4]+=F;r[5]+=E;r[6]+=D;r[7]+=C}return r};d._blocksize=16})();

257
src/crypto-js/sha256.js
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@ -1,133 +1,134 @@
/*!
* Crypto-JS v2.0.0
* http://code.google.com/p/crypto-js/
* Copyright (c) 2009, Jeff Mott. All rights reserved.
* http://code.google.com/p/crypto-js/wiki/License
*/
(function(){
// Shortcuts
var C = Crypto,
util = C.util,
charenc = C.charenc,
UTF8 = charenc.UTF8,
Binary = charenc.Binary;
// Constants
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 ];
// Public API
var SHA256 = C.SHA256 = function (message, options) {
var digestbytes = util.wordsToBytes(SHA256._sha256(message));
return options && options.asBytes ? digestbytes :
options && options.asString ? Binary.bytesToString(digestbytes) :
util.bytesToHex(digestbytes);
/*
CryptoJS v3.1.2
code.google.com/p/crypto-js
(c) 2009-2013 by Jeff Mott. All rights reserved.
code.google.com/p/crypto-js/wiki/License
*/
var conv = require('../convert'),
util = require('../util');
// Initialization round constants tables
var K = [];
// Compute constants
(function () {
function isPrime(n) {
var sqrtN = Math.sqrt(n);
for (var factor = 2; factor <= sqrtN; factor++) {
if (!(n % factor)) {
return false;
}
}
return true;
}
function getFractionalBits(n) {
return ((n - (n | 0)) * 0x100000000) | 0;
}
var n = 2;
var nPrime = 0;
while (nPrime < 64) {
if (isPrime(n)) {
K[nPrime] = getFractionalBits(Math.pow(n, 1 / 3));
nPrime++;
}
n++;
}
}());
// Reusable object
var W = [];
var processBlock = function (H, M, offset) {
// Working variables
var a = H[0];
var b = H[1];
var c = H[2];
var d = H[3];
var e = H[4];
var f = H[5];
var g = H[6];
var h = H[7];
// Computation
for (var i = 0; i < 64; i++) {
if (i < 16) {
W[i] = M[offset + i] | 0;
} else {
var gamma0x = W[i - 15];
var gamma0 = ((gamma0x << 25) | (gamma0x >>> 7)) ^
((gamma0x << 14) | (gamma0x >>> 18)) ^
(gamma0x >>> 3);
var gamma1x = W[i - 2];
var gamma1 = ((gamma1x << 15) | (gamma1x >>> 17)) ^
((gamma1x << 13) | (gamma1x >>> 19)) ^
(gamma1x >>> 10);
W[i] = gamma0 + W[i - 7] + gamma1 + W[i - 16];
}
var ch = (e & f) ^ (~e & g);
var maj = (a & b) ^ (a & c) ^ (b & c);
var sigma0 = ((a << 30) | (a >>> 2)) ^ ((a << 19) | (a >>> 13)) ^ ((a << 10) | (a >>> 22));
var sigma1 = ((e << 26) | (e >>> 6)) ^ ((e << 21) | (e >>> 11)) ^ ((e << 7) | (e >>> 25));
var t1 = h + sigma1 + ch + K[i] + W[i];
var t2 = sigma0 + maj;
h = g;
g = f;
f = e;
e = (d + t1) | 0;
d = c;
c = b;
b = a;
a = (t1 + t2) | 0;
}
// Intermediate hash value
H[0] = (H[0] + a) | 0;
H[1] = (H[1] + b) | 0;
H[2] = (H[2] + c) | 0;
H[3] = (H[3] + d) | 0;
H[4] = (H[4] + e) | 0;
H[5] = (H[5] + f) | 0;
H[6] = (H[6] + g) | 0;
H[7] = (H[7] + h) | 0;
};
// The core
SHA256._sha256 = function (message) {
// Convert to byte array
if (message.constructor == String) message = UTF8.stringToBytes(message);
/* else, assume byte array already */
var m = util.bytesToWords(message),
l = message.length * 8,
H = [ 0x6A09E667, 0xBB67AE85, 0x3C6EF372, 0xA54FF53A,
0x510E527F, 0x9B05688C, 0x1F83D9AB, 0x5BE0CD19 ],
w = [],
a, b, c, d, e, f, g, h, i, j,
t1, t2;
// Padding
m[l >> 5] |= 0x80 << (24 - l % 32);
m[((l + 64 >> 9) << 4) + 15] = l;
for (var i = 0; i < m.length; i += 16) {
a = H[0];
b = H[1];
c = H[2];
d = H[3];
e = H[4];
f = H[5];
g = H[6];
h = H[7];
for (var j = 0; j < 64; j++) {
if (j < 16) w[j] = m[j + i];
else {
var gamma0x = w[j - 15],
gamma1x = w[j - 2],
gamma0 = ((gamma0x << 25) | (gamma0x >>> 7)) ^
((gamma0x << 14) | (gamma0x >>> 18)) ^
(gamma0x >>> 3),
gamma1 = ((gamma1x << 15) | (gamma1x >>> 17)) ^
((gamma1x << 13) | (gamma1x >>> 19)) ^
(gamma1x >>> 10);
w[j] = gamma0 + (w[j - 7] >>> 0) +
gamma1 + (w[j - 16] >>> 0);
}
var ch = e & f ^ ~e & g,
maj = a & b ^ a & c ^ b & c,
sigma0 = ((a << 30) | (a >>> 2)) ^
((a << 19) | (a >>> 13)) ^
((a << 10) | (a >>> 22)),
sigma1 = ((e << 26) | (e >>> 6)) ^
((e << 21) | (e >>> 11)) ^
((e << 7) | (e >>> 25));
t1 = (h >>> 0) + sigma1 + ch + (K[j]) + (w[j] >>> 0);
t2 = sigma0 + maj;
h = g;
g = f;
f = e;
e = d + t1;
d = c;
c = b;
b = a;
a = t1 + t2;
}
H[0] += a;
H[1] += b;
H[2] += c;
H[3] += d;
H[4] += e;
H[5] += f;
H[6] += g;
H[7] += h;
}
return H;
/**
* SHA-256 hash algorithm.
*/
module.exports = function(message, options) {;
var H =[ 0x6A09E667, 0xBB67AE85, 0x3C6EF372, 0xA54FF53A,
0x510E527F, 0x9B05688C, 0x1F83D9AB, 0x5BE0CD19 ];
};
if (message.constructor === String) {
message = conv.stringToBytes(message);
}
// Package private blocksize
SHA256._blocksize = 16;
var m = util.bytesToWords(message);
var l = message.length * 8;
m[l >> 5] |= 0x80 << (24 - l % 32);
m[((l + 64 >> 9) << 4) + 15] = l;
for (var i=0 ; i<m.length; i += 16) {
processBlock(H, m, i);
}
var digestbytes = util.wordsToBytes(H);
return options && options.asBytes ? digestbytes :
options && options.asString ? Binary.bytesToString(digestbytes) :
conv.bytesToHex(digestbytes);
};
})();
module.exports._blocksize = 64

239
src/crypto-js/sha512.js
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var conv = require('../convert');
var util = require('../util');
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]
];
// Reusable objects
var W = [];
for (var i = 0; i < 80; i++) W.push([0,0])
/**
* SHA-512 hash algorithm.
*/
var processBlock = function (H, M, offset) {
// Shortcuts
var H0 = H[0];
var H1 = H[1];
var H2 = H[2];
var H3 = H[3];
var H4 = H[4];
var H5 = H[5];
var H6 = H[6];
var H7 = H[7];
var H0h = H0[0];
var H0l = H0[1];
var H1h = H1[0];
var H1l = H1[1];
var H2h = H2[0];
var H2l = H2[1];
var H3h = H3[0];
var H3l = H3[1];
var H4h = H4[0];
var H4l = H4[1];
var H5h = H5[0];
var H5l = H5[1];
var H6h = H6[0];
var H6l = H6[1];
var H7h = H7[0];
var H7l = H7[1];
// Working variables
var ah = H0h;
var al = H0l;
var bh = H1h;
var bl = H1l;
var ch = H2h;
var cl = H2l;
var dh = H3h;
var dl = H3l;
var eh = H4h;
var el = H4l;
var fh = H5h;
var fl = H5l;
var gh = H6h;
var gl = H6l;
var hh = H7h;
var hl = H7l;
// Rounds
for (var i = 0; i < 80; i++) {
// Shortcut
var Wi = W[i];
// Extend message
if (i < 16) {
var Wih = Wi[0] = M[offset + i * 2] | 0;
var Wil = Wi[1] = M[offset + i * 2 + 1] | 0;
} else {
// Gamma0
var gamma0x = W[i - 15];
var gamma0xh = gamma0x[0];
var gamma0xl = gamma0x[1];
var gamma0h = ((gamma0xh >>> 1) | (gamma0xl << 31)) ^ ((gamma0xh >>> 8) | (gamma0xl << 24)) ^ (gamma0xh >>> 7);
var gamma0l = ((gamma0xl >>> 1) | (gamma0xh << 31)) ^ ((gamma0xl >>> 8) | (gamma0xh << 24)) ^ ((gamma0xl >>> 7) | (gamma0xh << 25));
// Gamma1
var gamma1x = W[i - 2];
var gamma1xh = gamma1x[0];
var gamma1xl = gamma1x[1];
var gamma1h = ((gamma1xh >>> 19) | (gamma1xl << 13)) ^ ((gamma1xh << 3) | (gamma1xl >>> 29)) ^ (gamma1xh >>> 6);
var gamma1l = ((gamma1xl >>> 19) | (gamma1xh << 13)) ^ ((gamma1xl << 3) | (gamma1xh >>> 29)) ^ ((gamma1xl >>> 6) | (gamma1xh << 26));
// W[i] = gamma0 + W[i - 7] + gamma1 + W[i - 16]
var Wi7 = W[i - 7];
var Wi7h = Wi7[0];
var Wi7l = Wi7[1];
var Wi16 = W[i - 16];
var Wi16h = Wi16[0];
var Wi16l = Wi16[1];
var Wil = gamma0l + Wi7l;
var Wih = gamma0h + Wi7h + ((Wil >>> 0) < (gamma0l >>> 0) ? 1 : 0);
var Wil = Wil + gamma1l;
var Wih = Wih + gamma1h + ((Wil >>> 0) < (gamma1l >>> 0) ? 1 : 0);
var Wil = Wil + Wi16l;
var Wih = Wih + Wi16h + ((Wil >>> 0) < (Wi16l >>> 0) ? 1 : 0);
Wi[0] = Wih;
Wi[1] = Wil;
}
var chh = (eh & fh) ^ (~eh & gh);
var chl = (el & fl) ^ (~el & gl);
var majh = (ah & bh) ^ (ah & ch) ^ (bh & ch);
var majl = (al & bl) ^ (al & cl) ^ (bl & cl);
var sigma0h = ((ah >>> 28) | (al << 4)) ^ ((ah << 30) | (al >>> 2)) ^ ((ah << 25) | (al >>> 7));
var sigma0l = ((al >>> 28) | (ah << 4)) ^ ((al << 30) | (ah >>> 2)) ^ ((al << 25) | (ah >>> 7));
var sigma1h = ((eh >>> 14) | (el << 18)) ^ ((eh >>> 18) | (el << 14)) ^ ((eh << 23) | (el >>> 9));
var sigma1l = ((el >>> 14) | (eh << 18)) ^ ((el >>> 18) | (eh << 14)) ^ ((el << 23) | (eh >>> 9));
// t1 = h + sigma1 + ch + K[i] + W[i]
var Ki = K[i];
var Kih = Ki[0];
var Kil = Ki[1];
var t1l = hl + sigma1l;
var t1h = hh + sigma1h + ((t1l >>> 0) < (hl >>> 0) ? 1 : 0);
var t1l = t1l + chl;
var t1h = t1h + chh + ((t1l >>> 0) < (chl >>> 0) ? 1 : 0);
var t1l = t1l + Kil;
var t1h = t1h + Kih + ((t1l >>> 0) < (Kil >>> 0) ? 1 : 0);
var t1l = t1l + Wil;
var t1h = t1h + Wih + ((t1l >>> 0) < (Wil >>> 0) ? 1 : 0);
// t2 = sigma0 + maj
var t2l = sigma0l + majl;
var t2h = sigma0h + majh + ((t2l >>> 0) < (sigma0l >>> 0) ? 1 : 0);
// Update working variables
hh = gh;
hl = gl;
gh = fh;
gl = fl;
fh = eh;
fl = el;
el = (dl + t1l) | 0;
eh = (dh + t1h + ((el >>> 0) < (dl >>> 0) ? 1 : 0)) | 0;
dh = ch;
dl = cl;
ch = bh;
cl = bl;
bh = ah;
bl = al;
al = (t1l + t2l) | 0;
ah = (t1h + t2h + ((al >>> 0) < (t1l >>> 0) ? 1 : 0)) | 0;
}
// Intermediate hash value
H0l = H0[1] = (H0l + al);
H0[0] = (H0h + ah + ((H0l >>> 0) < (al >>> 0) ? 1 : 0));
H1l = H1[1] = (H1l + bl);
H1[0] = (H1h + bh + ((H1l >>> 0) < (bl >>> 0) ? 1 : 0));
H2l = H2[1] = (H2l + cl);
H2[0] = (H2h + ch + ((H2l >>> 0) < (cl >>> 0) ? 1 : 0));
H3l = H3[1] = (H3l + dl);
H3[0] = (H3h + dh + ((H3l >>> 0) < (dl >>> 0) ? 1 : 0));
H4l = H4[1] = (H4l + el);
H4[0] = (H4h + eh + ((H4l >>> 0) < (el >>> 0) ? 1 : 0));
H5l = H5[1] = (H5l + fl);
H5[0] = (H5h + fh + ((H5l >>> 0) < (fl >>> 0) ? 1 : 0));
H6l = H6[1] = (H6l + gl);
H6[0] = (H6h + gh + ((H6l >>> 0) < (gl >>> 0) ? 1 : 0));
H7l = H7[1] = (H7l + hl);
H7[0] = (H7h + hh + ((H7l >>> 0) < (hl >>> 0) ? 1 : 0));
return H
}
module.exports = function(message, options) {;
var H = [
[0x6a09e667, 0xf3bcc908], [0xbb67ae85, 0x84caa73b],
[0x3c6ef372, 0xfe94f82b], [0xa54ff53a, 0x5f1d36f1],
[0x510e527f, 0xade682d1], [0x9b05688c, 0x2b3e6c1f],
[0x1f83d9ab, 0xfb41bd6b], [0x5be0cd19, 0x137e2179]
];
if (message.constructor === String) {
message = conv.stringToBytes(message);
}
var m = util.bytesToWords(message);
var l = message.length * 8;
m[l >> 5] |= 0x80 << (24 - l % 32);
m[((l + 64 >> 10) << 5) + 31] = l;
for (var i=0 ; i<m.length; i += 32) {
processBlock(H, m, i);
}
var digestbytes = util.wordsToBytes(Array.prototype.concat.apply([],H))
return options && options.asBytes ? digestbytes :
options && options.asString ? Binary.bytesToString(digestbytes) :
conv.bytesToHex(digestbytes);
};
module.exports._blocksize = 128

718
src/ecdsa.js
View File

@ -1,475 +1,305 @@
function integerToBytes(i, len) {
var bytes = i.toByteArrayUnsigned();
var sec = require('./jsbn/sec');
var util = require('./util');
var SecureRandom = require('./jsbn/rng');
var BigInteger = require('./jsbn/jsbn');
var conv = require('./convert')
var Crypto = require('./crypto-js/crypto.js')
if (len < bytes.length) {
bytes = bytes.slice(bytes.length-len);
} else while (len > bytes.length) {
bytes.unshift(0);
}
var ECPointFp = require('./jsbn/ec').ECPointFp;
return bytes;
};
var rng = new SecureRandom();
var ecparams = sec("secp256k1");
var P_OVER_FOUR = null;
ECFieldElementFp.prototype.getByteLength = function () {
return Math.floor((this.toBigInteger().bitLength() + 7) / 8);
};
function implShamirsTrick(P, k, Q, l)
{
var m = Math.max(k.bitLength(), l.bitLength());
var Z = P.add2D(Q);
var R = P.curve.getInfinity();
ECPointFp.prototype.getEncoded = function (compressed) {
var x = this.getX().toBigInteger();
var y = this.getY().toBigInteger();
for (var i = m - 1; i >= 0; --i) {
R = R.twice2D();
// Get value as a 32-byte Buffer
// Fixed length based on a patch by bitaddress.org and Casascius
var enc = integerToBytes(x, 32);
R.z = BigInteger.ONE;
if (compressed) {
if (y.isEven()) {
// Compressed even pubkey
// M = 02 || X
enc.unshift(0x02);
if (k.testBit(i)) {
if (l.testBit(i)) {
R = R.add2D(Z);
} else {
R = R.add2D(P);
}
} else {
// Compressed uneven pubkey
// M = 03 || X
enc.unshift(0x03);
if (l.testBit(i)) {
R = R.add2D(Q);
}
}
} else {
// Uncompressed pubkey
// M = 04 || X || Y
enc.unshift(0x04);
enc = enc.concat(integerToBytes(y, 32));
}
return enc;
};
ECPointFp.decodeFrom = function (curve, enc) {
var type = enc[0];
var dataLen = enc.length-1;
// Extract x and y as byte arrays
var xBa = enc.slice(1, 1 + dataLen/2);
var yBa = enc.slice(1 + dataLen/2, 1 + dataLen);
// Prepend zero byte to prevent interpretation as negative integer
xBa.unshift(0);
yBa.unshift(0);
// Convert to BigIntegers
var x = new BigInteger(xBa);
var y = new BigInteger(yBa);
// Return point
return new ECPointFp(curve, curve.fromBigInteger(x), curve.fromBigInteger(y));
return R;
};
ECPointFp.prototype.add2D = function (b) {
if(this.isInfinity()) return b;
if(b.isInfinity()) return this;
if (this.x.equals(b.x)) {
if (this.y.equals(b.y)) {
// this = b, i.e. this must be doubled
return this.twice();
function deterministicGenerateK(hash,key) {
var v = [];
var k = [];
for (var i = 0;i < 32;i++) v.push(1);
for (var i = 0;i < 32;i++) k.push(0);
k = Crypto.HMAC(Crypto.SHA256,v.concat([0]).concat(key).concat(hash),k,{ asBytes: true })
v = Crypto.HMAC(Crypto.SHA256,v,k,{ asBytes: true })
k = Crypto.HMAC(Crypto.SHA256,v.concat([1]).concat(key).concat(hash),k,{ asBytes: true })
v = Crypto.HMAC(Crypto.SHA256,v,k,{ asBytes: true })
v = Crypto.HMAC(Crypto.SHA256,v,k,{ asBytes: true })
return BigInteger.fromByteArrayUnsigned(v);
}
var ECDSA = {
getBigRandom: function (limit) {
return new BigInteger(limit.bitLength(), rng)
.mod(limit.subtract(BigInteger.ONE))
.add(BigInteger.ONE)
;
},
sign: function (hash, priv) {
var d = priv;
var n = ecparams.getN();
var e = BigInteger.fromByteArrayUnsigned(hash);
var k = deterministicGenerateK(hash,priv.toByteArrayUnsigned())
var G = ecparams.getG();
var Q = G.multiply(k);
var r = Q.getX().toBigInteger().mod(n);
var s = k.modInverse(n).multiply(e.add(d.multiply(r))).mod(n);
return ECDSA.serializeSig(r, s);
},
verify: function (hash, sig, pubkey) {
var r,s;
if (util.isArray(sig)) {
var obj = ECDSA.parseSig(sig);
r = obj.r;
s = obj.s;
} else if ("object" === typeof sig && sig.r && sig.s) {
r = sig.r;
s = sig.s;
} else {
throw new Error("Invalid value for signature");
}
// this = -b, i.e. the result is the point at infinity
return this.curve.getInfinity();
}
var x_x = b.x.subtract(this.x);
var y_y = b.y.subtract(this.y);
var gamma = y_y.divide(x_x);
var x3 = gamma.square().subtract(this.x).subtract(b.x);
var y3 = gamma.multiply(this.x.subtract(x3)).subtract(this.y);
return new ECPointFp(this.curve, x3, y3);
};
ECPointFp.prototype.twice2D = function () {
if (this.isInfinity()) return this;
if (this.y.toBigInteger().signum() == 0) {
// if y1 == 0, then (x1, y1) == (x1, -y1)
// and hence this = -this and thus 2(x1, y1) == infinity
return this.curve.getInfinity();
}
var TWO = this.curve.fromBigInteger(BigInteger.valueOf(2));
var THREE = this.curve.fromBigInteger(BigInteger.valueOf(3));
var gamma = this.x.square().multiply(THREE).add(this.curve.a).divide(this.y.multiply(TWO));
var x3 = gamma.square().subtract(this.x.multiply(TWO));
var y3 = gamma.multiply(this.x.subtract(x3)).subtract(this.y);
return new ECPointFp(this.curve, x3, y3);
};
ECPointFp.prototype.multiply2D = function (k) {
if(this.isInfinity()) return this;
if(k.signum() == 0) return this.curve.getInfinity();
var e = k;
var h = e.multiply(new BigInteger("3"));
var neg = this.negate();
var R = this;
var i;
for (i = h.bitLength() - 2; i > 0; --i) {
R = R.twice();
var hBit = h.testBit(i);
var eBit = e.testBit(i);
if (hBit != eBit) {
R = R.add2D(hBit ? this : neg);
var Q;
if (pubkey instanceof ECPointFp) {
Q = pubkey;
} else if (util.isArray(pubkey)) {
Q = ECPointFp.decodeFrom(ecparams.getCurve(), pubkey);
} else {
throw new Error("Invalid format for pubkey value, must be byte array or ECPointFp");
}
var e = BigInteger.fromByteArrayUnsigned(hash);
return ECDSA.verifyRaw(e, r, s, Q);
},
verifyRaw: function (e, r, s, Q) {
var n = ecparams.getN();
var G = ecparams.getG();
if (r.compareTo(BigInteger.ONE) < 0 ||
r.compareTo(n) >= 0)
return false;
if (s.compareTo(BigInteger.ONE) < 0 ||
s.compareTo(n) >= 0)
return false;
var c = s.modInverse(n);
var u1 = e.multiply(c).mod(n);
var u2 = r.multiply(c).mod(n);
// TODO(!!!): For some reason Shamir's trick isn't working with
// signed message verification!? Probably an implementation
// error!
//var point = implShamirsTrick(G, u1, Q, u2);
var point = G.multiply(u1).add(Q.multiply(u2));
var v = point.getX().toBigInteger().mod(n);
return v.equals(r);
},
/**
* Serialize a signature into DER format.
*
* Takes two BigIntegers representing r and s and returns a byte array.
*/
serializeSig: function (r, s) {
var rBa = r.toByteArraySigned();
var sBa = s.toByteArraySigned();
var sequence = [];
sequence.push(0x02); // INTEGER
sequence.push(rBa.length);
sequence = sequence.concat(rBa);
sequence.push(0x02); // INTEGER
sequence.push(sBa.length);
sequence = sequence.concat(sBa);
sequence.unshift(sequence.length);
sequence.unshift(0x30); // SEQUENCE
return sequence;
},
/**
* Parses a byte array containing a DER-encoded signature.
*
* This function will return an object of the form:
*
* {
* r: BigInteger,
* s: BigInteger
* }
*/
parseSig: function (sig) {
var cursor;
if (sig[0] != 0x30)
throw new Error("Signature not a valid DERSequence");
cursor = 2;
if (sig[cursor] != 0x02)
throw new Error("First element in signature must be a DERInteger");;
var rBa = sig.slice(cursor+2, cursor+2+sig[cursor+1]);
cursor += 2+sig[cursor+1];
if (sig[cursor] != 0x02)
throw new Error("Second element in signature must be a DERInteger");
var sBa = sig.slice(cursor+2, cursor+2+sig[cursor+1]);
cursor += 2+sig[cursor+1];
//if (cursor != sig.length)
// throw new Error("Extra bytes in signature");
var r = BigInteger.fromByteArrayUnsigned(rBa);
var s = BigInteger.fromByteArrayUnsigned(sBa);
return {r: r, s: s};
},
parseSigCompact: function (sig) {
if (sig.length !== 65) {
throw new Error("Signature has the wrong length");
}
}
return R;
};
ECPointFp.prototype.isOnCurve = function () {
var x = this.getX().toBigInteger();
var y = this.getY().toBigInteger();
var a = this.curve.getA().toBigInteger();
var b = this.curve.getB().toBigInteger();
var n = this.curve.getQ();
var lhs = y.multiply(y).mod(n);
var rhs = x.multiply(x).multiply(x)
.add(a.multiply(x)).add(b).mod(n);
return lhs.equals(rhs);
};
ECPointFp.prototype.toString = function () {
return '('+this.getX().toBigInteger().toString()+','+
this.getY().toBigInteger().toString()+')';
};
// Signature is prefixed with a type byte storing three bits of
// information.
var i = sig[0] - 27;
if (i < 0 || i > 7) {
throw new Error("Invalid signature type");
}
/**
* Validate an elliptic curve point.
*
* See SEC 1, section 3.2.2.1: Elliptic Curve Public Key Validation Primitive
*/
ECPointFp.prototype.validate = function () {
var n = this.curve.getQ();
// Check Q != O
if (this.isInfinity()) {
throw new Error("Point is at infinity.");
}
var n = ecparams.getN();
var r = BigInteger.fromByteArrayUnsigned(sig.slice(1, 33)).mod(n);
var s = BigInteger.fromByteArrayUnsigned(sig.slice(33, 65)).mod(n);
return {r: r, s: s, i: i};
},
/**
* Recover a public key from a signature.
*
* See SEC 1: Elliptic Curve Cryptography, section 4.1.6, "Public
* Key Recovery Operation".
*
* http://www.secg.org/download/aid-780/sec1-v2.pdf
*/
recoverPubKey: function (r, s, hash, i) {
// The recovery parameter i has two bits.
i = i & 3;
// The less significant bit specifies whether the y coordinate
// of the compressed point is even or not.
var isYEven = i & 1;
// The more significant bit specifies whether we should use the
// first or second candidate key.
var isSecondKey = i >> 1;
var n = ecparams.getN();
var G = ecparams.getG();
var curve = ecparams.getCurve();
var p = curve.getQ();
var a = curve.getA().toBigInteger();
var b = curve.getB().toBigInteger();
// We precalculate (p + 1) / 4 where p is if the field order
if (!P_OVER_FOUR) {
P_OVER_FOUR = p.add(BigInteger.ONE).divide(BigInteger.valueOf(4));
}
// Check coordinate bounds
var x = this.getX().toBigInteger();
var y = this.getY().toBigInteger();
if (x.compareTo(BigInteger.ONE) < 0 ||
x.compareTo(n.subtract(BigInteger.ONE)) > 0) {
throw new Error('x coordinate out of bounds');
}
if (y.compareTo(BigInteger.ONE) < 0 ||
y.compareTo(n.subtract(BigInteger.ONE)) > 0) {
throw new Error('y coordinate out of bounds');
}
// 1.1 Compute x
var x = isSecondKey ? r.add(n) : r;
// Check y^2 = x^3 + ax + b (mod n)
if (!this.isOnCurve()) {
throw new Error("Point is not on the curve.");
}
// 1.3 Convert x to point
var alpha = x.multiply(x).multiply(x).add(a.multiply(x)).add(b).mod(p);
var beta = alpha.modPow(P_OVER_FOUR, p);
// Check nQ = 0 (Q is a scalar multiple of G)
if (this.multiply(n).isInfinity()) {
// TODO: This check doesn't work - fix.
throw new Error("Point is not a scalar multiple of G.");
}
var xorOdd = beta.isEven() ? (i % 2) : ((i+1) % 2);
// If beta is even, but y isn't or vice versa, then convert it,
// otherwise we're done and y == beta.
var y = (beta.isEven() ? !isYEven : isYEven) ? beta : p.subtract(beta);
return true;
};
// 1.4 Check that nR is at infinity
var R = new ECPointFp(curve,
curve.fromBigInteger(x),
curve.fromBigInteger(y));
R.validate();
function dmp(v) {
if (!(v instanceof BigInteger)) v = v.toBigInteger();
return Crypto.util.bytesToHex(v.toByteArrayUnsigned());
};
// 1.5 Compute e from M
var e = BigInteger.fromByteArrayUnsigned(hash);
var eNeg = BigInteger.ZERO.subtract(e).mod(n);
Bitcoin.ECDSA = (function () {
var ecparams = getSECCurveByName("secp256k1");
var rng = new SecureRandom();
// 1.6 Compute Q = r^-1 (sR - eG)
var rInv = r.modInverse(n);
var Q = implShamirsTrick(R, s, G, eNeg).multiply(rInv);
var P_OVER_FOUR = null;
Q.validate();
if (!ECDSA.verifyRaw(e, r, s, Q)) {
throw new Error("Pubkey recovery unsuccessful");
}
function implShamirsTrick(P, k, Q, l)
// TODO (shtylman) this is stupid because this file and eckey
// have circular dependencies
var ECPubKey = require('./eckey').ECPubKey;
return ECPubKey(Q);
},
/**
* Calculate pubkey extraction parameter.
*
* When extracting a pubkey from a signature, we have to
* distinguish four different cases. Rather than putting this
* burden on the verifier, Bitcoin includes a 2-bit value with the
* signature.
*
* This function simply tries all four cases and returns the value
* that resulted in a successful pubkey recovery.
*/
calcPubkeyRecoveryParam: function (origPubkey, r, s, hash)
{
var m = Math.max(k.bitLength(), l.bitLength());
var Z = P.add2D(Q);
var R = P.curve.getInfinity();
for (var i = m - 1; i >= 0; --i) {
R = R.twice2D();
R.z = BigInteger.ONE;
if (k.testBit(i)) {
if (l.testBit(i)) {
R = R.add2D(Z);
} else {
R = R.add2D(P);
}
} else {
if (l.testBit(i)) {
R = R.add2D(Q);
}
var address = origPubkey.getBitcoinAddress().toString();
for (var i = 0; i < 4; i++) {
var pubkey = ECDSA.recoverPubKey(r, s, hash, i);
pubkey.compressed = origPubkey.compressed;
if (pubkey.getBitcoinAddress().toString() == address) {
return i;
}
}
return R;
};
var ECDSA = {
getBigRandom: function (limit) {
return new BigInteger(limit.bitLength(), rng)
.mod(limit.subtract(BigInteger.ONE))
.add(BigInteger.ONE)
;
},
sign: function (hash, priv) {
var d = priv;
var n = ecparams.getN();
var e = BigInteger.fromByteArrayUnsigned(hash);
do {
var k = ECDSA.getBigRandom(n);
var G = ecparams.getG();
var Q = G.multiply(k);
var r = Q.getX().toBigInteger().mod(n);
} while (r.compareTo(BigInteger.ZERO) <= 0);
var s = k.modInverse(n).multiply(e.add(d.multiply(r))).mod(n);
return ECDSA.serializeSig(r, s);
},
verify: function (hash, sig, pubkey) {
var r,s;
if (Bitcoin.Util.isArray(sig)) {
var obj = ECDSA.parseSig(sig);
r = obj.r;
s = obj.s;
} else if ("object" === typeof sig && sig.r && sig.s) {
r = sig.r;
s = sig.s;
} else {
throw "Invalid value for signature";
}
var Q;
if (pubkey instanceof ECPointFp) {
Q = pubkey;
} else if (Bitcoin.Util.isArray(pubkey)) {
Q = ECPointFp.decodeFrom(ecparams.getCurve(), pubkey);
} else {
throw "Invalid format for pubkey value, must be byte array or ECPointFp";
}
var e = BigInteger.fromByteArrayUnsigned(hash);
return ECDSA.verifyRaw(e, r, s, Q);
},
verifyRaw: function (e, r, s, Q) {
var n = ecparams.getN();
var G = ecparams.getG();
if (r.compareTo(BigInteger.ONE) < 0 ||
r.compareTo(n) >= 0)
return false;
if (s.compareTo(BigInteger.ONE) < 0 ||
s.compareTo(n) >= 0)
return false;
var c = s.modInverse(n);
var u1 = e.multiply(c).mod(n);
var u2 = r.multiply(c).mod(n);
// TODO(!!!): For some reason Shamir's trick isn't working with
// signed message verification!? Probably an implementation
// error!
//var point = implShamirsTrick(G, u1, Q, u2);
var point = G.multiply(u1).add(Q.multiply(u2));
var v = point.getX().toBigInteger().mod(n);
return v.equals(r);
},
/**
* Serialize a signature into DER format.
*
* Takes two BigIntegers representing r and s and returns a byte array.
*/
serializeSig: function (r, s) {
var rBa = r.toByteArraySigned();
var sBa = s.toByteArraySigned();
var sequence = [];
sequence.push(0x02); // INTEGER
sequence.push(rBa.length);
sequence = sequence.concat(rBa);
sequence.push(0x02); // INTEGER
sequence.push(sBa.length);
sequence = sequence.concat(sBa);
sequence.unshift(sequence.length);
sequence.unshift(0x30); // SEQUENCE
return sequence;
},
/**
* Parses a byte array containing a DER-encoded signature.
*
* This function will return an object of the form:
*
* {
* r: BigInteger,
* s: BigInteger
* }
*/
parseSig: function (sig) {
var cursor;
if (sig[0] != 0x30)
throw new Error("Signature not a valid DERSequence");
cursor = 2;
if (sig[cursor] != 0x02)
throw new Error("First element in signature must be a DERInteger");;
var rBa = sig.slice(cursor+2, cursor+2+sig[cursor+1]);
cursor += 2+sig[cursor+1];
if (sig[cursor] != 0x02)
throw new Error("Second element in signature must be a DERInteger");
var sBa = sig.slice(cursor+2, cursor+2+sig[cursor+1]);
cursor += 2+sig[cursor+1];
//if (cursor != sig.length)
// throw new Error("Extra bytes in signature");
var r = BigInteger.fromByteArrayUnsigned(rBa);
var s = BigInteger.fromByteArrayUnsigned(sBa);
return {r: r, s: s};
},
parseSigCompact: function (sig) {
if (sig.length !== 65) {
throw "Signature has the wrong length";
}
// Signature is prefixed with a type byte storing three bits of
// information.
var i = sig[0] - 27;
if (i < 0 || i > 7) {
throw "Invalid signature type";
}
var n = ecparams.getN();
var r = BigInteger.fromByteArrayUnsigned(sig.slice(1, 33)).mod(n);
var s = BigInteger.fromByteArrayUnsigned(sig.slice(33, 65)).mod(n);
return {r: r, s: s, i: i};
},
/**
* Recover a public key from a signature.
*
* See SEC 1: Elliptic Curve Cryptography, section 4.1.6, "Public
* Key Recovery Operation".
*
* http://www.secg.org/download/aid-780/sec1-v2.pdf
*/
recoverPubKey: function (r, s, hash, i) {
// The recovery parameter i has two bits.
i = i & 3;
// The less significant bit specifies whether the y coordinate
// of the compressed point is even or not.
var isYEven = i & 1;
// The more significant bit specifies whether we should use the
// first or second candidate key.
var isSecondKey = i >> 1;
var n = ecparams.getN();
var G = ecparams.getG();
var curve = ecparams.getCurve();
var p = curve.getQ();
var a = curve.getA().toBigInteger();
var b = curve.getB().toBigInteger();
// We precalculate (p + 1) / 4 where p is if the field order
if (!P_OVER_FOUR) {
P_OVER_FOUR = p.add(BigInteger.ONE).divide(BigInteger.valueOf(4));
}
// 1.1 Compute x
var x = isSecondKey ? r.add(n) : r;
// 1.3 Convert x to point
var alpha = x.multiply(x).multiply(x).add(a.multiply(x)).add(b).mod(p);
var beta = alpha.modPow(P_OVER_FOUR, p);
var xorOdd = beta.isEven() ? (i % 2) : ((i+1) % 2);
// If beta is even, but y isn't or vice versa, then convert it,
// otherwise we're done and y == beta.
var y = (beta.isEven() ? !isYEven : isYEven) ? beta : p.subtract(beta);
// 1.4 Check that nR is at infinity
var R = new ECPointFp(curve,
curve.fromBigInteger(x),
curve.fromBigInteger(y));
R.validate();
// 1.5 Compute e from M
var e = BigInteger.fromByteArrayUnsigned(hash);
var eNeg = BigInteger.ZERO.subtract(e).mod(n);
// 1.6 Compute Q = r^-1 (sR - eG)
var rInv = r.modInverse(n);
var Q = implShamirsTrick(R, s, G, eNeg).multiply(rInv);
Q.validate();
if (!ECDSA.verifyRaw(e, r, s, Q)) {
throw "Pubkey recovery unsuccessful";
}
throw new Error("Unable to find valid recovery factor");
}
};
var pubKey = new Bitcoin.ECKey();
pubKey.pub = Q;
return pubKey;
},
/**
* Calculate pubkey extraction parameter.
*
* When extracting a pubkey from a signature, we have to
* distinguish four different cases. Rather than putting this
* burden on the verifier, Bitcoin includes a 2-bit value with the
* signature.
*
* This function simply tries all four cases and returns the value
* that resulted in a successful pubkey recovery.
*/
calcPubkeyRecoveryParam: function (address, r, s, hash)
{
for (var i = 0; i < 4; i++) {
try {
var pubkey = Bitcoin.ECDSA.recoverPubKey(r, s, hash, i);
if (pubkey.getBitcoinAddress().toString() == address) {
return i;
}
} catch (e) {}
}
throw "Unable to find valid recovery factor";
}
};
module.exports = ECDSA;
return ECDSA;
})();

304
src/eckey.js
View File

@ -1,131 +1,179 @@
Bitcoin.ECKey = (function () {
var ECDSA = Bitcoin.ECDSA;
var ecparams = getSECCurveByName("secp256k1");
var rng = new SecureRandom();
var ECKey = function (input) {
var BigInteger = require('./jsbn/jsbn');
var sec = require('./jsbn/sec');
var base58 = require('./base58');
var Crypto = require('./crypto-js/crypto');
var util = require('./util');
var conv = require('./convert');
var Address = require('./address');
var ecdsa = require('./ecdsa');
var ECPointFp = require('./jsbn/ec').ECPointFp;
var ecparams = sec("secp256k1");
// input can be nothing, array of bytes, hex string, or base58 string
var ECKey = function (input,compressed) {
if (!(this instanceof ECKey)) { return new ECKey(input); }
if (!input) {
// Generate new key
var n = ecparams.getN();
this.priv = ECDSA.getBigRandom(n);
} else if (input instanceof BigInteger) {
// Input is a private key value
this.priv = input;
} else if (Bitcoin.Util.isArray(input)) {
// Prepend zero byte to prevent interpretation as negative integer
this.priv = BigInteger.fromByteArrayUnsigned(input);
} else if ("string" == typeof input) {
if (input.length == 51 && input[0] == '5') {
// Base58 encoded private key
this.priv = BigInteger.fromByteArrayUnsigned(ECKey.decodeString(input));
} else {
// Prepend zero byte to prevent interpretation as negative integer
this.priv = BigInteger.fromByteArrayUnsigned(Crypto.util.base64ToBytes(input));
}
}
this.compressed = !!ECKey.compressByDefault;
};
/**
* Whether public keys should be returned compressed by default.
*/
ECKey.compressByDefault = false;
/**
* Set whether the public key should be returned compressed or not.
*/
ECKey.prototype.setCompressed = function (v) {
this.compressed = !!v;
};
/**
* Return public key in DER encoding.
*/
ECKey.prototype.getPub = function () {
return this.getPubPoint().getEncoded(this.compressed);
};
/**
* Return public point as ECPoint object.
*/
ECKey.prototype.getPubPoint = function () {
if (!this.pub) this.pub = ecparams.getG().multiply(this.priv);
return this.pub;
};
/**
* Get the pubKeyHash for this key.
*
* This is calculated as RIPE160(SHA256([encoded pubkey])) and returned as
* a byte array.
*/
ECKey.prototype.getPubKeyHash = function () {
if (this.pubKeyHash) return this.pubKeyHash;
return this.pubKeyHash = Bitcoin.Util.sha256ripe160(this.getPub());
};
ECKey.prototype.getBitcoinAddress = function () {
var hash = this.getPubKeyHash();
var addr = new Bitcoin.Address(hash);
return addr;
};
ECKey.prototype.getExportedPrivateKey = function () {
var hash = this.priv.toByteArrayUnsigned();
while (hash.length < 32) hash.unshift(0);
hash.unshift(0x80);
var checksum = Crypto.SHA256(Crypto.SHA256(hash, {asBytes: true}), {asBytes: true});
var bytes = hash.concat(checksum.slice(0,4));
return Bitcoin.Base58.encode(bytes);
};
ECKey.prototype.setPub = function (pub) {
this.pub = ECPointFp.decodeFrom(ecparams.getCurve(), pub);
};
ECKey.prototype.toString = function (format) {
if (format === "base64") {
return Crypto.util.bytesToBase64(this.priv.toByteArrayUnsigned());
} else {
return Crypto.util.bytesToHex(this.priv.toByteArrayUnsigned());
}
};
ECKey.prototype.sign = function (hash) {
return ECDSA.sign(hash, this.priv);
};
ECKey.prototype.verify = function (hash, sig) {
return ECDSA.verify(hash, sig, this.getPub());
};
/**
* Parse an exported private key contained in a string.
*/
ECKey.decodeString = function (string) {
var bytes = Bitcoin.Base58.decode(string);
var hash = bytes.slice(0, 33);
var checksum = Crypto.SHA256(Crypto.SHA256(hash, {asBytes: true}), {asBytes: true});
if (checksum[0] != bytes[33] ||
checksum[1] != bytes[34] ||
checksum[2] != bytes[35] ||
checksum[3] != bytes[36]) {
throw "Checksum validation failed!";
// Generate new key
var n = ecparams.getN();
this.priv = ecdsa.getBigRandom(n);
this.compressed = compressed || false;
}
var version = hash.shift();
if (version != 0x80) {
throw "Version "+version+" not supported!";
else this.import(input,compressed)
};
ECKey.prototype.import = function (input,compressed) {
function has(li,v) { return li.indexOf(v) >= 0 }
function fromBin(x) { return BigInteger.fromByteArrayUnsigned(x) }
this.priv =
input instanceof ECKey ? input.priv
: input instanceof BigInteger ? input.mod(ecparams.getN())
: util.isArray(input) ? fromBin(input.slice(0,32))
: typeof input != "string" ? null
: input.length == 51 && input[0] == '5' ? fromBin(base58.checkDecode(input))
: input.length == 52 && has('LK',input[0]) ? fromBin(base58.checkDecode(input))
: has([64,65],input.length) ? fromBin(conv.hexToBytes(input.slice(0,64)))
: null
this.compressed =
compressed !== undefined ? compressed
: input instanceof ECKey ? input.compressed
: input instanceof BigInteger ? false
: util.isArray(input) ? false
: typeof input != "string" ? null
: input.length == 51 && input[0] == '5' ? false
: input.length == 52 && has('LK',input[0]) ? true
: input.length == 64 ? false
: input.length == 65 ? true
: null
};
ECKey.prototype.getPub = function(compressed) {
if (compressed === undefined) compressed = this.compressed
return ECPubKey(ecparams.getG().multiply(this.priv),compressed)
}
/**
* @deprecated Reserved keyword, factory pattern. Use toHex, toBytes, etc.
*/
ECKey.prototype['export'] = function(format) {
format || (format = 'hex')
return this['to' + format.substr(0, 1).toUpperCase() + format.substr(1)]()
};
ECKey.prototype.toBin = function() {
return conv.bytesToString(this.toBytes())
}
ECKey.prototype.toBase58 = function() {
return base58.checkEncode(this.toBytes(), 128)
}
ECKey.prototype.toWif = ECKey.prototype.toBase58
ECKey.prototype.toHex = function() {
return conv.bytesToHex(this.toBytes())
}
ECKey.prototype.toBytes = function() {
var bytes = this.priv.toByteArrayUnsigned();
if (this.compressed) bytes.push(1)
return bytes
}
ECKey.prototype.toString = ECKey.prototype.toBase58
ECKey.prototype.getBitcoinAddress = function(v) {
return this.getPub().getBitcoinAddress(v)
}
ECKey.prototype.add = function(key) {
return ECKey(this.priv.add(ECKey(key).priv),this.compressed)
}
ECKey.prototype.multiply = function(key) {
return ECKey(this.priv.multiply(ECKey(key).priv),this.compressed)
}
var ECPubKey = function(input,compressed) {
if (!(this instanceof ECPubKey)) { return new ECPubKey(input,compressed); }
if (!input) {
// Generate new key
var n = ecparams.getN();
this.pub = ecparams.getG().multiply(ecdsa.getBigRandom(n))
this.compressed = compressed || false;
}
return hash;
};
return ECKey;
})();
else this.import(input,compressed)
}
ECPubKey.prototype.import = function(input,compressed) {
var decode = function(x) { return ECPointFp.decodeFrom(ecparams.getCurve(), x) }
this.pub =
input instanceof ECPointFp ? input
: input instanceof ECKey ? ecparams.getG().multiply(input.priv)
: input instanceof ECPubKey ? input.pub
: typeof input == "string" ? decode(conv.hexToBytes(input))
: util.isArray(input) ? decode(input)
: ecparams.getG().multiply(ecdsa.getBigRandom(ecparams.getN()))
this.compressed =
arguments.length > 1 ? compressed
: input instanceof ECPointFp ? input.compressed
: input instanceof ECPubKey ? input.compressed
: (this.pub[0] < 4)
}
ECPubKey.prototype.add = function(key) {
return ECPubKey(this.pub.add(ECPubKey(key).pub),this.compressed)
}
ECPubKey.prototype.multiply = function(key) {
return ECPubKey(this.pub.multiply(ECKey(key).priv),this.compressed)
}
ECPubKey.prototype['export'] = function(format) {
format || (format = 'hex')
return this['to' + format.substr(0, 1).toUpperCase() + format.substr(1)]()
}
ECPubKey.prototype.toBytes = function(compressed) {
if (compressed === undefined) compressed = this.compressed
return this.pub.getEncoded(compressed)
}
ECPubKey.prototype.toHex = function() {
return conv.bytesToHex(this.toBytes())
}
ECPubKey.prototype.toBin = function() {
return conv.bytesToString(this.toBytes())
}
ECPubKey.prototype.toBase58 = function() {
return base58.checkEncode(this.toBytes(), 128)
}
ECPubKey.prototype.toWif = ECPubKey.prototype.toBase58
ECPubKey.prototype.toString = function() {
return this.getBitcoinAddress().toString()
}
ECPubKey.prototype.getBitcoinAddress = function(v) {
return new Address(util.sha256ripe160(this.toBytes()), v);
}
ECKey.prototype.sign = function (hash) {
return ecdsa.sign(hash, this.priv);
};
ECKey.prototype.verify = function (hash, sig) {
return ecdsa.verify(hash, sig, this.getPub()['export']('bytes'));
};
/**
* Parse an exported private key contained in a string.
*/
module.exports = { ECKey: ECKey, ECPubKey: ECPubKey };

235
src/hdwallet.js
View File

@ -0,0 +1,235 @@
var convert = require('./convert.js')
, base58 = require('./base58.js')
, assert = require('assert')
, format = require('util').format
, util = require('./util.js')
, Crypto = require('./crypto-js/crypto.js')
, ECKey = require('./eckey.js').ECKey
, ECPubKey = require('./eckey.js').ECPubKey
, Address = require('./address.js')
var HDWallet = module.exports = function(seed, network) {
if (seed === undefined) return
var I = Crypto.HMAC(Crypto.SHA512, seed, 'Bitcoin seed', { asBytes: true })
this.chaincode = I.slice(32)
this.priv = new ECKey(I.slice(0, 32).concat([1]), true)
this.pub = this.priv.getPub()
this.network = network || 'Bitcoin'
this.index = 0
this.depth = 0
}
HDWallet.HIGHEST_BIT = 0x80000000
HDWallet.LENGTH = 78
HDWallet.VERSIONS = {
Bitcoin: [0x0488B21E, 0x0488ADE4],
BitcoinTest: [0x043587CF, 0x04358394]
}
function arrayEqual(a, b) {
return !(a < b || a > b)
}
HDWallet.getChecksum = function(buffer) {
assert.equal(buffer.length, HDWallet.LENGTH)
return Crypto.SHA256(Crypto.SHA256(buffer, { asBytes: true }), { asBytes: true }).slice(0, 4)
}
HDWallet.fromMasterHex = function(hex) {
var bytes = convert.hexToBytes(hex)
return new HDWallet(convert.bytesToString(bytes))
}
HDWallet.fromBase58 = function(input) {
var buffer = base58.decode(input)
if (buffer.length == HDWallet.LENGTH + 4) {
var expectedChecksum = buffer.slice(HDWallet.LENGTH, HDWallet.LENGTH + 4)
buffer = buffer.slice(0, HDWallet.LENGTH)
var actualChecksum = HDWallet.getChecksum(buffer)
if (!arrayEqual(expectedChecksum, actualChecksum)) {
throw new Error('Checksum mismatch')
}
}
return HDWallet.fromBytes(buffer)
}
HDWallet.fromHex = function(input) {
return HDWallet.fromBytes(convert.hexToBytes(input))
}
HDWallet.fromBytes = function(input) {
// This 78 byte structure can be encoded like other Bitcoin data in Base58. (+32 bits checksum)
if (input.length != HDWallet.LENGTH) {
throw new Error(format('Invalid input length, %s. Expected %s.', input.length, HDWallet.LENGTH))
}
var hd = new HDWallet()
// 4 byte: version bytes (mainnet: 0x0488B21E public, 0x0488ADE4 private;
// testnet: 0x043587CF public, 0x04358394 private)
var versionBytes = input.slice(0, 4)
, versionWord = util.bytesToWords(versionBytes)[0]
, type
Object.keys(HDWallet.VERSIONS).forEach(function(name) {
HDWallet.VERSIONS[name].forEach(function(word, i) {
if (versionWord != word) return
type = i ? 'private' : 'public'
hd.network = name
})
})
if (!hd.network) {
throw new Error(format('Could not find version %s', convert.bytesToHex(versionBytes)))
}
// 1 byte: depth: 0x00 for master nodes, 0x01 for level-1 descendants, ...
hd.depth = input[4]
// 4 bytes: the fingerprint of the parent's key (0x00000000 if master key)
hd.parentFingerprint = input.slice(5, 9)
assert((hd.depth === 0) == arrayEqual(hd.parentFingerprint, [0, 0, 0, 0]))
// 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)
hd.index = util.bytesToNum(input.slice(9, 13).reverse())
assert(hd.depth > 0 || hd.index === 0)
// 32 bytes: the chain code
hd.chaincode = input.slice(13, 45)
// 33 bytes: the public key or private key data (0x02 + X or 0x03 + X for
// public keys, 0x00 + k for private keys)
if (type == 'private') {
hd.priv = new ECKey(input.slice(46, 78).concat([1]), true)
hd.pub = hd.priv.getPub()
} else {
hd.pub = new ECPubKey(input.slice(45, 78), true)
}
return hd
}
HDWallet.prototype.getIdentifier = function() {
return util.sha256ripe160(this.pub.toBytes())
}
HDWallet.prototype.getFingerprint = function() {
return this.getIdentifier().slice(0, 4)
}
HDWallet.prototype.getBitcoinAddress = function() {
var test = this.network.match(/Test$/)
return new Address(util.sha256ripe160(this.pub.toBytes()), test ? 111 : 0)
}
HDWallet.prototype.toBytes = function(priv) {
var buffer = []
// Version
// 4 byte: version bytes (mainnet: 0x0488B21E public, 0x0488ADE4 private; testnet: 0x043587CF public,
// 0x04358394 private)
var vBytes = util.wordsToBytes([HDWallet.VERSIONS[this.network][priv ? 1 : 0]])
buffer = buffer.concat(vBytes)
assert.equal(buffer.length, 4)
// Depth
// 1 byte: depth: 0x00 for master nodes, 0x01 for level-1 descendants, ....
buffer.push(this.depth)
assert.equal(buffer.length, 4 + 1)
// 4 bytes: the fingerprint of the parent's key (0x00000000 if master key)
buffer = buffer.concat(this.depth ? this.parentFingerprint : [0, 0, 0, 0])
assert.equal(buffer.length, 4 + 1 + 4)
// 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)
buffer = buffer.concat(util.numToBytes(this.index, 4).reverse())
assert.equal(buffer.length, 4 + 1 + 4 + 4)
// 32 bytes: the chain code
buffer = buffer.concat(this.chaincode)
assert.equal(buffer.length, 4 + 1 + 4 + 4 + 32)
// 33 bytes: the public key or private key data
// (0x02 + X or 0x03 + X for public keys, 0x00 + k for private keys)
if (priv) {
assert(this.priv, 'Cannot serialize to private without private key')
buffer.push(0)
buffer = buffer.concat(this.priv.toBytes().slice(0, 32))
} else {
buffer = buffer.concat(this.pub.toBytes(true))
}
return buffer
}
HDWallet.prototype.toHex = function(priv) {
var bytes = this.toBytes(priv)
return convert.bytesToHex(bytes)
}
HDWallet.prototype.toBase58 = function(priv) {
var buffer = this.toBytes(priv)
, checksum = HDWallet.getChecksum(buffer)
buffer = buffer.concat(checksum)
return base58.encode(buffer)
}
HDWallet.prototype.derive = function(i) {
var I
, iBytes = util.numToBytes(i, 4).reverse()
, cPar = this.chaincode
, usePriv = i >= HDWallet.HIGHEST_BIT
if (usePriv) {
assert(this.priv, 'Private derive on public key')
// If 1, private derivation is used:
// let I = HMAC-SHA512(Key = cpar, Data = 0x00 || kpar || i) [Note:]
var kPar = this.priv.toBytes().slice(0, 32)
I = Crypto.HMAC(Crypto.SHA512, [0].concat(kPar, iBytes), cPar, { asBytes: true })
} else {
// If 0, public derivation is used:
// let I = HMAC-SHA512(Key = cpar, Data = χ(kpar*G) || i)
var KPar = this.pub.toBytes(true)
I = Crypto.HMAC(Crypto.SHA512, KPar.concat(iBytes), cPar, { asBytes: true })
}
// Split I = IL || IR into two 32-byte sequences, IL and IR.
var IL = I.slice(0, 32)
, IR = I.slice(32)
var hd = new HDWallet()
hd.network = this.network
if (this.priv) {
// ki = IL + kpar (mod n).
hd.priv = this.priv.add(new ECKey(IL.concat([1])))
hd.priv.compressed = true
hd.pub = hd.priv.getPub()
} else {
// Ki = (IL + kpar)*G = IL*G + Kpar
hd.pub = this.pub.add(new ECKey(IL.concat([1])).getPub())
}
// ci = IR.
hd.chaincode = IR
hd.parentFingerprint = this.getFingerprint()
hd.depth = this.depth + 1
hd.index = i
hd.pub.compressed = true
return hd
}
HDWallet.prototype.derivePrivate = function(index) {
return this.derive(index + HDWallet.HIGHEST_BIT)
}
HDWallet.prototype.toString = HDWallet.prototype.toBase58

54
src/index.js
View File

@ -0,0 +1,54 @@
// Bit-wise rotate left
var rotl = function (n, b) {
return (n << b) | (n >>> (32 - b));
};
// Bit-wise rotate right
var rotr = function (n, b) {
return (n << (32 - b)) | (n >>> b);
};
// Swap big-endian to little-endian and vice versa
var endian = function (n) {
// If number given, swap endian
if (n.constructor == Number) {
return rotl(n, 8) & 0x00FF00FF | rotl(n, 24) & 0xFF00FF00;
}
// Else, assume array and swap all items
for (var i = 0; i < n.length; i++) {
n[i] = endian(n[i]);
}
return n;
}
var Key = require('./eckey');
module.exports = {
Address: require('./address'),
Key: Key.ECKey,
ECKey: Key.ECKey,
ECPubKey: Key.ECPubKey,
Message: require('./message'),
BigInteger: require('./jsbn/jsbn'),
Crypto: require('./crypto-js/crypto'),
Script: require('./script'),
Opcode: require('./opcode'),
Transaction: require('./transaction').Transaction,
Util: require('./util'),
TransactionIn: require('./transaction').TransactionIn,
TransactionOut: require('./transaction').TransactionOut,
ECPointFp: require('./jsbn/ec').ECPointFp,
Wallet: require('./wallet'),
ecdsa: require('./ecdsa'),
HDWallet: require('./hdwallet.js'),
// base58 encoding/decoding to bytes
base58: require('./base58'),
// conversions
convert: require('./convert'),
endian: endian
}

208
src/jsbn/ec.js
View File

@ -2,7 +2,8 @@
// Ported loosely from BouncyCastle's Java EC code
// Only Fp curves implemented for now
// Requires jsbn.js and jsbn2.js
var BigInteger = require('./jsbn'),
sec = require('./sec');
// ----------------
// ECFieldElementFp
@ -314,3 +315,208 @@ ECCurveFp.prototype.equals = curveFpEquals;
ECCurveFp.prototype.getInfinity = curveFpGetInfinity;
ECCurveFp.prototype.fromBigInteger = curveFpFromBigInteger;
ECCurveFp.prototype.decodePointHex = curveFpDecodePointHex;
// prepends 0 if bytes < len
// cuts off start if bytes > len
function integerToBytes(i, len) {
var bytes = i.toByteArrayUnsigned();
if (len < bytes.length) {
bytes = bytes.slice(bytes.length-len);
} else while (len > bytes.length) {
bytes.unshift(0);
}
return bytes;
};
ECFieldElementFp.prototype.getByteLength = function () {
return Math.floor((this.toBigInteger().bitLength() + 7) / 8);
};
ECPointFp.prototype.getEncoded = function (compressed) {
var x = this.getX().toBigInteger();
var y = this.getY().toBigInteger();
// Get value as a 32-byte Buffer
// Fixed length based on a patch by bitaddress.org and Casascius
var enc = integerToBytes(x, 32);
if (compressed) {
if (y.isEven()) {
// Compressed even pubkey
// M = 02 || X
enc.unshift(0x02);
} else {
// Compressed uneven pubkey
// M = 03 || X
enc.unshift(0x03);
}
} else {
// Uncompressed pubkey
// M = 04 || X || Y
enc.unshift(0x04);
enc = enc.concat(integerToBytes(y, 32));
}
return enc;
};
ECPointFp.decodeFrom = function (ecparams, enc) {
var type = enc[0];
var dataLen = enc.length-1;
// Extract x and y as byte arrays
if (type == 4) {
var xBa = enc.slice(1, 1 + dataLen/2),
yBa = enc.slice(1 + dataLen/2, 1 + dataLen),
x = BigInteger.fromByteArrayUnsigned(xBa),
y = BigInteger.fromByteArrayUnsigned(yBa);
}
else {
var xBa = enc.slice(1),
x = BigInteger.fromByteArrayUnsigned(xBa),
p = ecparams.getQ(),
xCubedPlus7 = x.multiply(x).multiply(x).add(new BigInteger('7')).mod(p),
pPlus1Over4 = p.add(new BigInteger('1'))
.divide(new BigInteger('4')),
y = xCubedPlus7.modPow(pPlus1Over4,p);
if (y.mod(new BigInteger('2')).toString() != ''+(type % 2)) {
y = p.subtract(y)
}
}
// Prepend zero byte to prevent interpretation as negative integer
// Convert to BigIntegers
// Return point
return new ECPointFp(ecparams,
ecparams.fromBigInteger(x),
ecparams.fromBigInteger(y));
};
ECPointFp.prototype.add2D = function (b) {
if(this.isInfinity()) return b;
if(b.isInfinity()) return this;
if (this.x.equals(b.x)) {
if (this.y.equals(b.y)) {
// this = b, i.e. this must be doubled
return this.twice();
}
// this = -b, i.e. the result is the point at infinity
return this.curve.getInfinity();
}
var x_x = b.x.subtract(this.x);
var y_y = b.y.subtract(this.y);
var gamma = y_y.divide(x_x);
var x3 = gamma.square().subtract(this.x).subtract(b.x);
var y3 = gamma.multiply(this.x.subtract(x3)).subtract(this.y);
return new ECPointFp(this.curve, x3, y3);
};
ECPointFp.prototype.twice2D = function () {
if (this.isInfinity()) return this;
if (this.y.toBigInteger().signum() == 0) {
// if y1 == 0, then (x1, y1) == (x1, -y1)
// and hence this = -this and thus 2(x1, y1) == infinity
return this.curve.getInfinity();
}
var TWO = this.curve.fromBigInteger(BigInteger.valueOf(2));
var THREE = this.curve.fromBigInteger(BigInteger.valueOf(3));
var gamma = this.x.square().multiply(THREE).add(this.curve.a).divide(this.y.multiply(TWO));
var x3 = gamma.square().subtract(this.x.multiply(TWO));
var y3 = gamma.multiply(this.x.subtract(x3)).subtract(this.y);
return new ECPointFp(this.curve, x3, y3);
};
ECPointFp.prototype.multiply2D = function (k) {
if(this.isInfinity()) return this;
if(k.signum() == 0) return this.curve.getInfinity();
var e = k;
var h = e.multiply(new BigInteger("3"));
var neg = this.negate();
var R = this;
var i;
for (i = h.bitLength() - 2; i > 0; --i) {
R = R.twice();
var hBit = h.testBit(i);
var eBit = e.testBit(i);
if (hBit != eBit) {
R = R.add2D(hBit ? this : neg);
}
}
return R;
};
ECPointFp.prototype.isOnCurve = function () {
var x = this.getX().toBigInteger();
var y = this.getY().toBigInteger();
var a = this.curve.getA().toBigInteger();
var b = this.curve.getB().toBigInteger();
var n = this.curve.getQ();
var lhs = y.multiply(y).mod(n);
var rhs = x.multiply(x).multiply(x)
.add(a.multiply(x)).add(b).mod(n);
return lhs.equals(rhs);
};
ECPointFp.prototype.toString = function () {
return '('+this.getX().toBigInteger().toString()+','+
this.getY().toBigInteger().toString()+')';
};
/**
* Validate an elliptic curve point.
*
* See SEC 1, section 3.2.2.1: Elliptic Curve Public Key Validation Primitive
*/
ECPointFp.prototype.validate = function () {
var n = this.curve.getQ();
// Check Q != O
if (this.isInfinity()) {
throw new Error("Point is at infinity.");
}
// Check coordinate bounds
var x = this.getX().toBigInteger();
var y = this.getY().toBigInteger();
if (x.compareTo(BigInteger.ONE) < 0 ||
x.compareTo(n.subtract(BigInteger.ONE)) > 0) {
throw new Error('x coordinate out of bounds');
}
if (y.compareTo(BigInteger.ONE) < 0 ||
y.compareTo(n.subtract(BigInteger.ONE)) > 0) {
throw new Error('y coordinate out of bounds');
}
// Check y^2 = x^3 + ax + b (mod n)
if (!this.isOnCurve()) {
throw new Error("Point is not on the curve.");
}
// Check nQ = 0 (Q is a scalar multiple of G)
if (this.multiply(n).isInfinity()) {
// TODO: This check doesn't work - fix.
throw new Error("Point is not a scalar multiple of G.");
}
return true;
};
module.exports = ECCurveFp;
module.exports.ECPointFp = ECPointFp;

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// Copyright (c) 2005-2009 Tom Wu
// All Rights Reserved.
// See "LICENSE" for details.
// Extended JavaScript BN functions, required for RSA private ops.
// Version 1.1: new BigInteger("0", 10) returns "proper" zero
// Version 1.2: square() API, isProbablePrime fix
// (public)
function bnClone() { var r = nbi(); 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 = nbi(), z = nbi(), 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) {
this.fromInt(0);
if(b == null) b = 10;
var cs = this.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) == "-" && this.signum() == 0) mi = true;
continue;
}
w = b*w+x;
if(++j >= cs) {
this.dMultiply(d);
this.dAddOffset(w,0);
j = 0;
w = 0;
}
}
if(j > 0) {
this.dMultiply(Math.pow(b,j));
this.dAddOffset(w,0);
}
if(mi) BigInteger.ZERO.subTo(this,this);
}
// (protected) alternate constructor
function bnpFromNumber(a,b,c) {
if("number" == typeof b) {
// new BigInteger(int,int,RNG)
if(a < 2) this.fromInt(1);
else {
this.fromNumber(a,c);
if(!this.testBit(a-1)) // force MSB set
this.bitwiseTo(BigInteger.ONE.shiftLeft(a-1),op_or,this);
if(this.isEven()) this.dAddOffset(1,0); // force odd
while(!this.isProbablePrime(b)) {
this.dAddOffset(2,0);
if(this.bitLength() > a) this.subTo(BigInteger.ONE.shiftLeft(a-1),this);
}
}
}
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;
this.fromString(x,256);
}
}
// (public) convert to bigendian byte array
function bnToByteArray() {
var i = this.t, r = new Array();
r[0] = this.s;
var p = this.DB-(i*this.DB)%8, d, k = 0;
if(i-- > 0) {
if(p < this.DB && (d = this[i]>>p) != (this.s&this.DM)>>p)
r[k++] = d|(this.s<<(this.DB-p));
while(i >= 0) {
if(p < 8) {
d = (this[i]&((1<<p)-1))<<(8-p);
d |= this[--i]>>(p+=this.DB-8);
}
else {
d = (this[i]>>(p-=8))&0xff;
if(p <= 0) { p += this.DB; --i; }
}
if((d&0x80) != 0) d |= -256;
if(k == 0 && (this.s&0x80) != (d&0x80)) ++k;
if(k > 0 || d != this.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 i, f, m = Math.min(a.t,this.t);
for(i = 0; i < m; ++i) r[i] = op(this[i],a[i]);
if(a.t < this.t) {
f = a.s&this.DM;
for(i = m; i < this.t; ++i) r[i] = op(this[i],f);
r.t = this.t;
}
else {
f = this.s&this.DM;
for(i = m; i < a.t; ++i) r[i] = op(f,a[i]);
r.t = a.t;
}
r.s = op(this.s,a.s);
r.clamp();
}
// (public) this & a
function op_and(x,y) { return x&y; }
function bnAnd(a) { var r = nbi(); this.bitwiseTo(a,op_and,r); return r; }
// (public) this | a
function op_or(x,y) { return x|y; }
function bnOr(a) { var r = nbi(); this.bitwiseTo(a,op_or,r); return r; }
// (public) this ^ a
function op_xor(x,y) { return x^y; }
function bnXor(a) { var r = nbi(); this.bitwiseTo(a,op_xor,r); return r; }
// (public) this & ~a
function op_andnot(x,y) { return x&~y; }
function bnAndNot(a) { var r = nbi(); this.bitwiseTo(a,op_andnot,r); return r; }
// (public) ~this
function bnNot() {
var r = nbi();
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 = nbi();
if(n < 0) this.rShiftTo(-n,r); else this.lShiftTo(n,r);
return r;
}
// (public) this >> n
function bnShiftRight(n) {
var r = nbi();
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<<n)
function bnpChangeBit(n,op) {
var r = BigInteger.ONE.shiftLeft(n);
this.bitwiseTo(r,op,r);
return r;
}
// (public) this | (1<<n)
function bnSetBit(n) { return this.changeBit(n,op_or); }
// (public) this & ~(1<<n)
function bnClearBit(n) { return this.changeBit(n,op_andnot); }
// (public) this ^ (1<<n)
function bnFlipBit(n) { return this.changeBit(n,op_xor); }
// (protected) r = this + a
function bnpAddTo(a,r) {
var i = 0, c = 0, m = Math.min(a.t,this.t);
while(i < m) {
c += this[i]+a[i];
r[i++] = c&this.DM;
c >>= this.DB;
}
if(a.t < this.t) {
c += a.s;
while(i < this.t) {
c += this[i];
r[i++] = c&this.DM;
c >>= this.DB;
}
c += this.s;
}
else {
c += this.s;
while(i < a.t) {
c += a[i];
r[i++] = c&this.DM;
c >>= this.DB;
}
c += a.s;
}
r.s = (c<0)?-1:0;
if(c > 0) r[i++] = c;
else if(c < -1) r[i++] = this.DV+c;
r.t = i;
r.clamp();
}
// (public) this + a
function bnAdd(a) { var r = nbi(); this.addTo(a,r); return r; }
// (public) this - a
function bnSubtract(a) { var r = nbi(); this.subTo(a,r); return r; }
// (public) this * a
function bnMultiply(a) { var r = nbi(); this.multiplyTo(a,r); return r; }
// (public) this^2
function bnSquare() { var r = nbi(); this.squareTo(r); return r; }
// (public) this / a
function bnDivide(a) { var r = nbi(); this.divRemTo(a,r,null); return r; }
// (public) this % a
function bnRemainder(a) { var r = nbi(); this.divRemTo(a,null,r); return r; }
// (public) [this/a,this%a]
function bnDivideAndRemainder(a) {
var q = nbi(), r = nbi();
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 = nbi();
this.q3 = nbi();
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 = nbi(); x.copyTo(r); this.reduce(r); return r; }
}
function barrettRevert(x) { return x; }
// x = x mod m (HAC 14.42)
function barrettReduce(x) {
x.drShiftTo(this.m.t-1,this.r2);
if(x.t > this.m.t+1) { x.t = this.m.t+1; x.clamp(); }
this.mu.multiplyUpperTo(this.r2,this.m.t+1,this.q3);
this.m.multiplyLowerTo(this.q3,this.m.t+1,this.r2);
while(x.compareTo(this.r2) < 0) x.dAddOffset(1,this.m.t+1);
x.subTo(this.r2,x);
while(x.compareTo(this.m) >= 0) x.subTo(this.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 = nbi();
z.sqrTo(g[1],g2);
while(n <= km) {
g[n] = nbi();
z.mulTo(g2,g[n-2],g[n]);
n += 2;
}
}
var j = e.t-1, w, is1 = true, r2 = nbi(), 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.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;
if(d.compareTo(m) >= 0) return d.subtract(m);
if(d.signum() < 0) d.addTo(m,d); else return d;
if(d.signum() < 0) return d.add(m); else 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 = nbi();
for(var i = 0; i < t; ++i) {
//Pick bases at random, instead of starting at 2
a.fromInt(lowprimes[Math.floor(Math.random()*lowprimes.length)]);
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
BigInteger.prototype.chunkSize = bnpChunkSize;
BigInteger.prototype.toRadix = bnpToRadix;
BigInteger.prototype.fromRadix = bnpFromRadix;
BigInteger.prototype.fromNumber = bnpFromNumber;
BigInteger.prototype.bitwiseTo = bnpBitwiseTo;
BigInteger.prototype.changeBit = bnpChangeBit;
BigInteger.prototype.addTo = bnpAddTo;
BigInteger.prototype.dMultiply = bnpDMultiply;
BigInteger.prototype.dAddOffset = bnpDAddOffset;
BigInteger.prototype.multiplyLowerTo = bnpMultiplyLowerTo;
BigInteger.prototype.multiplyUpperTo = bnpMultiplyUpperTo;
BigInteger.prototype.modInt = bnpModInt;
BigInteger.prototype.millerRabin = bnpMillerRabin;
// public
BigInteger.prototype.clone = bnClone;
BigInteger.prototype.intValue = bnIntValue;
BigInteger.prototype.byteValue = bnByteValue;
BigInteger.prototype.shortValue = bnShortValue;
BigInteger.prototype.signum = bnSigNum;
BigInteger.prototype.toByteArray = bnToByteArray;
BigInteger.prototype.equals = bnEquals;
BigInteger.prototype.min = bnMin;
BigInteger.prototype.max = bnMax;
BigInteger.prototype.and = bnAnd;
BigInteger.prototype.or = bnOr;
BigInteger.prototype.xor = bnXor;
BigInteger.prototype.andNot = bnAndNot;
BigInteger.prototype.not = bnNot;
BigInteger.prototype.shiftLeft = bnShiftLeft;
BigInteger.prototype.shiftRight = bnShiftRight;
BigInteger.prototype.getLowestSetBit = bnGetLowestSetBit;
BigInteger.prototype.bitCount = bnBitCount;
BigInteger.prototype.testBit = bnTestBit;
BigInteger.prototype.setBit = bnSetBit;
BigInteger.prototype.clearBit = bnClearBit;
BigInteger.prototype.flipBit = bnFlipBit;
BigInteger.prototype.add = bnAdd;
BigInteger.prototype.subtract = bnSubtract;
BigInteger.prototype.multiply = bnMultiply;
BigInteger.prototype.divide = bnDivide;
BigInteger.prototype.remainder = bnRemainder;
BigInteger.prototype.divideAndRemainder = bnDivideAndRemainder;
BigInteger.prototype.modPow = bnModPow;
BigInteger.prototype.modInverse = bnModInverse;
BigInteger.prototype.pow = bnPow;
BigInteger.prototype.gcd = bnGCD;
BigInteger.prototype.isProbablePrime = bnIsProbablePrime;
// JSBN-specific extension
BigInteger.prototype.square = bnSquare;
// BigInteger interfaces not implemented in jsbn:
// BigInteger(int signum, byte[] magnitude)
// double doubleValue()
// float floatValue()
// int hashCode()
// long longValue()
// static BigInteger valueOf(long val)

8
src/jsbn/prng4.js
View File

@ -35,11 +35,5 @@ function ARC4next() {
Arcfour.prototype.init = ARC4init;
Arcfour.prototype.next = ARC4next;
// Plug in your RNG constructor here
function prng_newstate() {
return new Arcfour();
}
module.exports = Arcfour;
// Pool size must be a multiple of 4 and greater than 32.
// An array of bytes the size of the pool will be passed to init()
var rng_psize = 256;

19
src/jsbn/rng.js
View File

@ -1,4 +1,16 @@
// Random number generator - requires a PRNG backend, e.g. prng4.js
// prng4.js - uses Arcfour as a PRNG
var Arcfour = require('./prng4');
// Plug in your RNG constructor here
function prng_newstate() {
return new Arcfour();
}
// Pool size must be a multiple of 4 and greater than 32.
// An array of bytes the size of the pool will be passed to init()
var rng_psize = 256;
// For best results, put code like
// <body onClick='rng_seed_time();' onKeyPress='rng_seed_time();'>
@ -27,12 +39,15 @@ if(rng_pool == null) {
rng_pool = new Array();
rng_pptr = 0;
var t;
// TODO(shtylman) use browser crypto if available
/*
if(navigator.appName == "Netscape" && navigator.appVersion < "5" && window.crypto) {
// Extract entropy (256 bits) from NS4 RNG if available
var z = window.crypto.random(32);
for(t = 0; t < z.length; ++t)
rng_pool[rng_pptr++] = z.charCodeAt(t) & 255;
}
}
*/
while(rng_pptr < rng_psize) { // extract some randomness from Math.random()
t = Math.floor(65536 * Math.random());
rng_pool[rng_pptr++] = t >>> 8;
@ -66,3 +81,5 @@ function rng_get_bytes(ba) {
function SecureRandom() {}
SecureRandom.prototype.nextBytes = rng_get_bytes;
module.exports = SecureRandom;

5
src/jsbn/sec.js
View File

@ -2,6 +2,9 @@
// Requires ec.js, jsbn.js, and jsbn2.js
var ECCurveFp = require('./ec');
var BigInteger = require('./jsbn');
// ----------------
// X9ECParameters
@ -171,3 +174,5 @@ function getSECCurveByName(name) {
if(name == "secp256r1") return secp256r1();
return null;
}
module.exports = getSECCurveByName;

95
src/message.js
View File

@ -1,69 +1,68 @@
/**
* Implements Bitcoin's feature for signing arbitrary messages.
*/
Bitcoin.Message = (function () {
var Message = {};
/// Implements Bitcoin's feature for signing arbitrary messages.
Message.magicPrefix = "Bitcoin Signed Message:\n";
var Crypto = require('./crypto-js/crypto');
var ecdsa = require('./ecdsa');
var conv = require('./convert');
var util = require('./util');
Message.makeMagicMessage = function (message) {
var magicBytes = Crypto.charenc.UTF8.stringToBytes(Message.magicPrefix);
var messageBytes = Crypto.charenc.UTF8.stringToBytes(message);
var Message = {};
var buffer = [];
buffer = buffer.concat(Bitcoin.Util.numToVarInt(magicBytes.length));
buffer = buffer.concat(magicBytes);
buffer = buffer.concat(Bitcoin.Util.numToVarInt(messageBytes.length));
buffer = buffer.concat(messageBytes);
Message.magicPrefix = "Bitcoin Signed Message:\n";
return buffer;
};
Message.makeMagicMessage = function (message) {
var magicBytes = conv.stringToBytes(Message.magicPrefix);
var messageBytes = conv.stringToBytes(message);
Message.getHash = function (message) {
var buffer = Message.makeMagicMessage(message);
return Crypto.SHA256(Crypto.SHA256(buffer, {asBytes: true}), {asBytes: true});
};
var buffer = [];
buffer = buffer.concat(util.numToVarInt(magicBytes.length));
buffer = buffer.concat(magicBytes);
buffer = buffer.concat(util.numToVarInt(messageBytes.length));
buffer = buffer.concat(messageBytes);
Message.signMessage = function (key, message, compressed) {
var hash = Message.getHash(message);
return buffer;
};
var sig = key.sign(hash);
Message.getHash = function (message) {
var buffer = Message.makeMagicMessage(message);
return Crypto.SHA256(Crypto.SHA256(buffer, {asBytes: true}), {asBytes: true});
};
var obj = Bitcoin.ECDSA.parseSig(sig);
Message.signMessage = function (key, message, compressed) {
var hash = Message.getHash(message);
var address = key.getBitcoinAddress().toString();
var i = Bitcoin.ECDSA.calcPubkeyRecoveryParam(address, obj.r, obj.s, hash);
var sig = key.sign(hash);
i += 27;
if (compressed) i += 4;
var obj = ecdsa.parseSig(sig);
var rBa = obj.r.toByteArrayUnsigned();
var sBa = obj.s.toByteArrayUnsigned();
var i = ecdsa.calcPubkeyRecoveryParam(key, obj.r, obj.s, hash);
// Pad to 32 bytes per value
while (rBa.length < 32) rBa.unshift(0);
while (sBa.length < 32) sBa.unshift(0);
i += 27;
if (compressed) i += 4;
sig = [i].concat(rBa).concat(sBa);
var rBa = obj.r.toByteArrayUnsigned();
var sBa = obj.s.toByteArrayUnsigned();
return Crypto.util.bytesToBase64(sig);
};
// Pad to 32 bytes per value
while (rBa.length < 32) rBa.unshift(0);
while (sBa.length < 32) sBa.unshift(0);
Message.verifyMessage = function (address, sig, message) {
sig = Crypto.util.base64ToBytes(sig);
sig = Bitcoin.ECDSA.parseSigCompact(sig);
sig = [i].concat(rBa).concat(sBa);
var hash = Message.getHash(message);
return conv.bytesToHex(sig);
};
var isCompressed = !!(sig.i & 4);
var pubKey = Bitcoin.ECDSA.recoverPubKey(sig.r, sig.s, hash, sig.i);
Message.verifyMessage = function (address, sig, message) {
sig = conv.hexToBytes(sig);
sig = ecdsa.parseSigCompact(sig);
pubKey.setCompressed(isCompressed);
var hash = Message.getHash(message);
var expectedAddress = pubKey.getBitcoinAddress().toString();
var isCompressed = !!(sig.i & 4);
var pubKey = ecdsa.recoverPubKey(sig.r, sig.s, hash, sig.i);
return (address === expectedAddress);
};
var expectedAddress = pubKey.getBitcoinAddress().toString();
return Message;
})();
return (address === expectedAddress);
};
module.exports = Message;

308
src/opcode.js
View File

@ -1,154 +1,154 @@
(function () {
var Opcode = Bitcoin.Opcode = function (num) {
this.code = num;
};
Opcode.prototype.toString = function () {
return Opcode.reverseMap[this.code];
};
Opcode.map = {
// push value
OP_0 : 0,
OP_FALSE : 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,
// control
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,
// stack ops
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,
// splice ops
OP_CAT : 126,
OP_SUBSTR : 127,
OP_LEFT : 128,
OP_RIGHT : 129,
OP_SIZE : 130,
// bit logic
OP_INVERT : 131,
OP_AND : 132,
OP_OR : 133,
OP_XOR : 134,
OP_EQUAL : 135,
OP_EQUALVERIFY : 136,
OP_RESERVED1 : 137,
OP_RESERVED2 : 138,
// numeric
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,
// crypto
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,
// expansion
OP_NOP1 : 176,
OP_NOP2 : 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,
// template matching params
OP_PUBKEYHASH : 253,
OP_PUBKEY : 254,
OP_INVALIDOPCODE : 255
};
Opcode.reverseMap = [];
for (var i in Opcode.map) {
Opcode.reverseMap[Opcode.map[i]] = i;
}
})();
var Opcode = function (num) {
this.code = num;
};
Opcode.prototype.toString = function () {
return Opcode.reverseMap[this.code];
};
Opcode.map = {
// push value
OP_0 : 0,
OP_FALSE : 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,
// control
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,
// stack ops
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,
// splice ops
OP_CAT : 126,
OP_SUBSTR : 127,
OP_LEFT : 128,
OP_RIGHT : 129,
OP_SIZE : 130,
// bit logic
OP_INVERT : 131,
OP_AND : 132,
OP_OR : 133,
OP_XOR : 134,
OP_EQUAL : 135,
OP_EQUALVERIFY : 136,
OP_RESERVED1 : 137,
OP_RESERVED2 : 138,
// numeric
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,
// crypto
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,
// expansion
OP_NOP1 : 176,
OP_NOP2 : 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,
// template matching params
OP_PUBKEYHASH : 253,
OP_PUBKEY : 254,
OP_INVALIDOPCODE : 255
};
Opcode.reverseMap = [];
for (var i in Opcode.map) {
Opcode.reverseMap[Opcode.map[i]] = i;
}
module.exports = Opcode;

661
src/script.js
View File

@ -1,347 +1,382 @@
(function () {
var Opcode = Bitcoin.Opcode;
var Opcode = require('./opcode');
var util = require('./util');
var conv = require('./convert');
var Address = require('./address');
// Make opcodes available as pseudo-constants
for (var i in Opcode.map) {
eval("var " + i + " = " + Opcode.map[i] + ";");
var Script = function (data) {
if (!data) {
this.buffer = [];
} else if ("string" == typeof data) {
this.buffer = conv.hexToBytes(data);
} else if (util.isArray(data)) {
this.buffer = data;
} else if (data instanceof Script) {
this.buffer = data.buffer;
} else {
throw new Error("Invalid script");
}
var Script = Bitcoin.Script = function (data) {
if (!data) {
this.buffer = [];
} else if ("string" == typeof data) {
this.buffer = Crypto.util.base64ToBytes(data);
} else if (Bitcoin.Util.isArray(data)) {
this.buffer = data;
} else if (data instanceof Script) {
this.buffer = data.buffer;
this.parse();
};
Script.fromPubKey = function(str) {
var script = new Script();
var s = str.split(" ");
for (var i in s) {
if (Opcode.map.hasOwnProperty(s[i])){
script.writeOp(Opcode.map[s[i]]);
} else {
throw new Error("Invalid script");
script.writeBytes(conv.hexToBytes(s[i]));
}
}
return script;
};
this.parse();
};
Script.fromScriptSig = function(str) {
var script = new Script();
var s = str.split(" ");
for (var i in s) {
if (Opcode.map.hasOwnProperty(s[i])){
script.writeOp(Opcode.map[s[i]]);
} else {
script.writeBytes(conv.hexToBytes(s[i]));
}
}
return script;
};
/**
* Update the parsed script representation.
*
* Each Script object stores the script in two formats. First as a raw byte
* array and second as an array of "chunks", such as opcodes and pieces of
* data.
*
* This method updates the chunks cache. Normally this is called by the
* constructor and you don't need to worry about it. However, if you change
* the script buffer manually, you should update the chunks using this method.
*/
Script.prototype.parse = function () {
var self = this;
/**
* Update the parsed script representation.
*
* Each Script object stores the script in two formats. First as a raw byte
* array and second as an array of "chunks", such as opcodes and pieces of
* data.
*
* This method updates the chunks cache. Normally this is called by the
* constructor and you don't need to worry about it. However, if you change
* the script buffer manually, you should update the chunks using this method.
*/
Script.prototype.parse = function () {
var self = this;
this.chunks = [];
this.chunks = [];
// Cursor
var i = 0;
// Cursor
var i = 0;
// Read n bytes and store result as a chunk
function readChunk(n) {
self.chunks.push(self.buffer.slice(i, i + n));
i += n;
};
// Read n bytes and store result as a chunk
function readChunk(n) {
self.chunks.push(self.buffer.slice(i, i + n));
i += n;
};
while (i < this.buffer.length) {
var opcode = this.buffer[i++];
if (opcode >= 0xF0) {
// Two byte opcode
opcode = (opcode << 8) | this.buffer[i++];
}
while (i < this.buffer.length) {
var opcode = this.buffer[i++];
if (opcode >= 0xF0) {
// Two byte opcode
opcode = (opcode << 8) | this.buffer[i++];
}
var len;
if (opcode > 0 && opcode < OP_PUSHDATA1) {
// Read some bytes of data, opcode value is the length of data
readChunk(opcode);
} else if (opcode == OP_PUSHDATA1) {
len = this.buffer[i++];
readChunk(len);
} else if (opcode == OP_PUSHDATA2) {
len = (this.buffer[i++] << 8) | this.buffer[i++];
readChunk(len);
} else if (opcode == OP_PUSHDATA4) {
len = (this.buffer[i++] << 24) |
(this.buffer[i++] << 16) |
(this.buffer[i++] << 8) |
this.buffer[i++];
readChunk(len);
} else {
this.chunks.push(opcode);
}
var len;
if (opcode > 0 && opcode < Opcode.map.OP_PUSHDATA1) {
// Read some bytes of data, opcode value is the length of data
readChunk(opcode);
} else if (opcode == Opcode.map.OP_PUSHDATA1) {
len = this.buffer[i++];
readChunk(len);
} else if (opcode == Opcode.map.OP_PUSHDATA2) {
len = (this.buffer[i++] << 8) | this.buffer[i++];
readChunk(len);
} else if (opcode == Opcode.map.OP_PUSHDATA4) {
len = (this.buffer[i++] << 24) |
(this.buffer[i++] << 16) |
(this.buffer[i++] << 8) |
this.buffer[i++];
readChunk(len);
} else {
this.chunks.push(opcode);
}
};
}
};
/**
* Compare the script to known templates of scriptPubKey.
*
* This method will compare the script to a small number of standard script
* templates and return a string naming the detected type.
*
* Currently supported are:
* Address:
* Paying to a Bitcoin address which is the hash of a pubkey.
* OP_DUP OP_HASH160 [pubKeyHash] OP_EQUALVERIFY OP_CHECKSIG
*
* Pubkey:
* Paying to a public key directly.
* [pubKey] OP_CHECKSIG
*
* Strange:
* Any other script (no template matched).
*/
Script.prototype.getOutType = function () {
/**
* Compare the script to known templates of scriptPubKey.
*
* This method will compare the script to a small number of standard script
* templates and return a string naming the detected type.
*
* Currently supported are:
* Address:
* Paying to a Bitcoin address which is the hash of a pubkey.
* OP_DUP OP_HASH160 [pubKeyHash] OP_EQUALVERIFY OP_CHECKSIG
*
* Pubkey:
* Paying to a public key directly.
* [pubKey] OP_CHECKSIG
*
* Strange:
* Any other script (no template matched).
*/
Script.prototype.getOutType = function () {
if (this.chunks[this.chunks.length-1] == Opcode.map.OP_EQUAL &&
this.chunks[0] == Opcode.map.OP_HASH160 &&
this.chunks.length == 3) {
// Transfer to M-OF-N
return 'P2SH';
}
else if (this.chunks.length == 5 &&
this.chunks[0] == Opcode.map.OP_DUP &&
this.chunks[1] == Opcode.map.OP_HASH160 &&
this.chunks[3] == Opcode.map.OP_EQUALVERIFY &&
this.chunks[4] == Opcode.map.OP_CHECKSIG) {
// Transfer to Bitcoin address
return 'Pubkey';
}
else {
return 'Strange';
}
}
if (this.chunks[this.chunks.length-1] == OP_CHECKMULTISIG && this.chunks[this.chunks.length-2] <= 3) {
// Transfer to M-OF-N
return 'Multisig';
} else if (this.chunks.length == 5 &&
this.chunks[0] == OP_DUP &&
this.chunks[1] == OP_HASH160 &&
this.chunks[3] == OP_EQUALVERIFY &&
this.chunks[4] == OP_CHECKSIG) {
// Transfer to Bitcoin address
return 'Address';
} else if (this.chunks.length == 2 &&
this.chunks[1] == OP_CHECKSIG) {
// Transfer to IP address
/**
* Returns the address corresponding to this output in hash160 form.
* Assumes strange scripts are P2SH
*/
Script.prototype.toScriptHash = function () {
var outType = this.getOutType();
return outType == 'Pubkey' ? this.chunks[2]
: outType == 'P2SH' ? util.sha256ripe160(this.buffer)
: util.sha256ripe160(this.buffer)
};
Script.prototype.toAddress = function() {
var outType = this.getOutType();
return outType == 'Pubkey' ? new Address(this.chunks[2])
: outType == 'P2SH' ? new Address(this.chunks[1],5)
: new Address(this.chunks[1],5)
}
/**
* Compare the script to known templates of scriptSig.
*
* This method will compare the script to a small number of standard script
* templates and return a string naming the detected type.
*
* WARNING: Use this method with caution. It merely represents a heuristic
* based on common transaction formats. A non-standard transaction could
* very easily match one of these templates by accident.
*
* Currently supported are:
* Address:
* Paying to a Bitcoin address which is the hash of a pubkey.
* [sig] [pubKey]
*
* Pubkey:
* Paying to a public key directly.
* [sig]
*
* Multisig:
* Paying to M-of-N public keys.
*
* Strange:
* Any other script (no template matched).
*/
Script.prototype.getInType = function ()
{
if (this.chunks.length == 1 &&
util.isArray(this.chunks[0])) {
// Direct IP to IP transactions only have the signature in their scriptSig.
// TODO: We could also check that the length of the data is correct.
return 'Pubkey';
} else if (this.chunks.length == 2 &&
util.isArray(this.chunks[0]) &&
util.isArray(this.chunks[1])) {
return 'Address';
} else if (this.chunks[0] == Opcode.map.OP_0 &&
this.chunks.slice(1).reduce(function(t,chunk,i) {
return t && util.isArray(chunk)
&& (chunk[0] == 48 || i == this.chunks.length - 1);
},true)) {
return 'Multisig';
} else {
return 'Strange';
}
}
}
};
/**
* Returns the affected address hash for this output.
*
* For standard transactions, this will return the hash of the pubKey that
* can spend this output.
*
* In the future, for payToScriptHash outputs, this will return the
* scriptHash. Note that non-standard and standard payToScriptHash transactions
* look the same
*
* This method is useful for indexing transactions.
*/
Script.prototype.simpleOutHash = function ()
{
switch (this.getOutType()) {
case 'Address':
return this.chunks[2];
case 'Pubkey':
return Bitcoin.Util.sha256ripe160(this.chunks[0]);
default:
throw new Error("Encountered non-standard scriptPubKey");
}
};
/**
* Returns the affected public key for this input.
*
* This currently only works with payToPubKeyHash transactions. It will also
* work in the future for standard payToScriptHash transactions that use a
* single public key.
*
* However for multi-key and other complex transactions, this will only return
* one of the keys or raise an error. Therefore, it is recommended for indexing
* purposes to use Script#simpleInHash or Script#simpleOutHash instead.
*
* @deprecated
*/
Script.prototype.simpleInPubKey = function ()
{
switch (this.getInType()) {
case 'Address':
return this.chunks[1];
case 'Pubkey':
// TODO: Theoretically, we could recover the pubkey from the sig here.
// See https://bitcointalk.org/?topic=6430.0
throw new Error("Script does not contain pubkey.");
default:
throw new Error("Encountered non-standard scriptSig");
}
};
/**
* Old name for Script#simpleOutHash.
*
* @deprecated
*/
Script.prototype.simpleOutPubKeyHash = Script.prototype.simpleOutHash;
/**
* Returns the affected address hash for this input.
*
* For standard transactions, this will return the hash of the pubKey that
* can spend this output.
*
* In the future, for standard payToScriptHash inputs, this will return the
* scriptHash.
*
* Note: This function provided for convenience. If you have the corresponding
* scriptPubKey available, you are urged to use Script#simpleOutHash instead
* as it is more reliable for non-standard payToScriptHash transactions.
*
* This method is useful for indexing transactions.
*/
Script.prototype.simpleInHash = function ()
{
return util.sha256ripe160(this.simpleInPubKey());
};
/**
* Compare the script to known templates of scriptSig.
*
* This method will compare the script to a small number of standard script
* templates and return a string naming the detected type.
*
* WARNING: Use this method with caution. It merely represents a heuristic
* based on common transaction formats. A non-standard transaction could
* very easily match one of these templates by accident.
*
* Currently supported are:
* Address:
* Paying to a Bitcoin address which is the hash of a pubkey.
* [sig] [pubKey]
*
* Pubkey:
* Paying to a public key directly.
* [sig]
*
* Strange:
* Any other script (no template matched).
*/
Script.prototype.getInType = function ()
{
if (this.chunks.length == 1 &&
Bitcoin.Util.isArray(this.chunks[0])) {
// Direct IP to IP transactions only have the signature in their scriptSig.
// TODO: We could also check that the length of the data is correct.
return 'Pubkey';
} else if (this.chunks.length == 2 &&
Bitcoin.Util.isArray(this.chunks[0]) &&
Bitcoin.Util.isArray(this.chunks[1])) {
return 'Address';
} else {
return 'Strange';
}
};
/**
* Old name for Script#simpleInHash.
*
* @deprecated
*/
Script.prototype.simpleInPubKeyHash = Script.prototype.simpleInHash;
/**
* Returns the affected public key for this input.
*
* This currently only works with payToPubKeyHash transactions. It will also
* work in the future for standard payToScriptHash transactions that use a
* single public key.
*
* However for multi-key and other complex transactions, this will only return
* one of the keys or raise an error. Therefore, it is recommended for indexing
* purposes to use Script#simpleInHash or Script#simpleOutHash instead.
*
* @deprecated
*/
Script.prototype.simpleInPubKey = function ()
{
switch (this.getInType()) {
case 'Address':
return this.chunks[1];
case 'Pubkey':
// TODO: Theoretically, we could recover the pubkey from the sig here.
// See https://bitcointalk.org/?topic=6430.0
throw new Error("Script does not contain pubkey.");
default:
throw new Error("Encountered non-standard scriptSig");
}
};
/**
* Add an op code to the script.
*/
Script.prototype.writeOp = function (opcode)
{
this.buffer.push(opcode);
this.chunks.push(opcode);
};
/**
* Returns the affected address hash for this input.
*
* For standard transactions, this will return the hash of the pubKey that
* can spend this output.
*
* In the future, for standard payToScriptHash inputs, this will return the
* scriptHash.
*
* Note: This function provided for convenience. If you have the corresponding
* scriptPubKey available, you are urged to use Script#simpleOutHash instead
* as it is more reliable for non-standard payToScriptHash transactions.
*
* This method is useful for indexing transactions.
*/
Script.prototype.simpleInHash = function ()
{
return Bitcoin.Util.sha256ripe160(this.simpleInPubKey());
};
/**
* Add a data chunk to the script.
*/
Script.prototype.writeBytes = function (data)
{
if (data.length < Opcode.map.OP_PUSHDATA1) {
this.buffer.push(data.length);
} else if (data.length <= 0xff) {
this.buffer.push(Opcode.map.OP_PUSHDATA1);
this.buffer.push(data.length);
} else if (data.length <= 0xffff) {
this.buffer.push(Opcode.map.OP_PUSHDATA2);
this.buffer.push(data.length & 0xff);
this.buffer.push((data.length >>> 8) & 0xff);
} else {
this.buffer.push(Opcode.map.OP_PUSHDATA4);
this.buffer.push(data.length & 0xff);
this.buffer.push((data.length >>> 8) & 0xff);
this.buffer.push((data.length >>> 16) & 0xff);
this.buffer.push((data.length >>> 24) & 0xff);
}
this.buffer = this.buffer.concat(data);
this.chunks.push(data);
};
/**
* Old name for Script#simpleInHash.
*
* @deprecated
*/
Script.prototype.simpleInPubKeyHash = Script.prototype.simpleInHash;
/**
* Create an output for an address
*/
Script.createOutputScript = function (address)
{
var script = new Script();
address = new Address(address);
// Standard pay-to-pubkey-hash
if (!address.version) {
script.writeOp(Opcode.map.OP_DUP);
script.writeOp(Opcode.map.OP_HASH160);
script.writeBytes(address.hash);
script.writeOp(Opcode.map.OP_EQUALVERIFY);
script.writeOp(Opcode.map.OP_CHECKSIG);
}
// Standard pay-to-script-hash
else {
script.writeOp(Opcode.map.OP_HASH160);
script.writeBytes(address.hash);
script.writeOp(Opcode.map.OP_EQUAL);
}
return script;
};
/**
* Add an op code to the script.
*/
Script.prototype.writeOp = function (opcode)
{
this.buffer.push(opcode);
this.chunks.push(opcode);
};
/**
* Extract pubkeys from a multisig script
*/
/**
* Add a data chunk to the script.
*/
Script.prototype.writeBytes = function (data)
{
if (data.length < OP_PUSHDATA1) {
this.buffer.push(data.length);
} else if (data.length <= 0xff) {
this.buffer.push(OP_PUSHDATA1);
this.buffer.push(data.length);
} else if (data.length <= 0xffff) {
this.buffer.push(OP_PUSHDATA2);
this.buffer.push(data.length & 0xff);
this.buffer.push((data.length >>> 8) & 0xff);
} else {
this.buffer.push(OP_PUSHDATA4);
this.buffer.push(data.length & 0xff);
this.buffer.push((data.length >>> 8) & 0xff);
this.buffer.push((data.length >>> 16) & 0xff);
this.buffer.push((data.length >>> 24) & 0xff);
}
this.buffer = this.buffer.concat(data);
this.chunks.push(data);
};
Script.prototype.extractPubkeys = function() {
return this.chunks.filter(function(chunk) {
return (chunk[0] == 4 && chunk.length == 65
|| chunk[0] < 4 && chunk.length == 33)
});
}
/**
* Create a standard payToPubKeyHash output.
*/
Script.createOutputScript = function (address)
{
var script = new Script();
script.writeOp(OP_DUP);
script.writeOp(OP_HASH160);
script.writeBytes(address.hash);
script.writeOp(OP_EQUALVERIFY);
script.writeOp(OP_CHECKSIG);
return script;
};
/**
* Create an m-of-n output script
*/
Script.createMultiSigOutputScript = function (m, pubkeys)
{
var script = new Script();
pubkeys = pubkeys.sort();
script.writeOp(Opcode.map.OP_1 + m - 1);
/**
* Extract bitcoin addresses from an output script
*/
Script.prototype.extractAddresses = function (addresses)
{
switch (this.getOutType()) {
case 'Address':
addresses.push(new Address(this.chunks[2]));
return 1;
case 'Pubkey':
addresses.push(new Address(Util.sha256ripe160(this.chunks[0])));
return 1;
case 'Multisig':
for (var i = 1; i < this.chunks.length-2; ++i) {
addresses.push(new Address(Util.sha256ripe160(this.chunks[i])));
}
return this.chunks[0] - OP_1 + 1;
default:
throw new Error("Encountered non-standard scriptPubKey");
}
};
for (var i = 0; i < pubkeys.length; ++i) {
script.writeBytes(pubkeys[i]);
}
script.writeOp(Opcode.map.OP_1 + pubkeys.length - 1);
/**
* Create an m-of-n output script
*/
Script.createMultiSigOutputScript = function (m, pubkeys)
{
var script = new Bitcoin.Script();
script.writeOp(OP_1 + m - 1);
for (var i = 0; i < pubkeys.length; ++i) {
script.writeBytes(pubkeys[i]);
}
script.writeOp(OP_1 + pubkeys.length - 1);
script.writeOp(Opcode.map.OP_CHECKMULTISIG);
script.writeOp(OP_CHECKMULTISIG);
return script;
};
return script;
};
/**
* Create a standard payToPubKeyHash input.
*/
Script.createInputScript = function (signature, pubKey)
{
var script = new Script();
script.writeBytes(signature);
script.writeBytes(pubKey);
return script;
};
/**
* Create a standard payToPubKeyHash input.
*/
Script.createInputScript = function (signature, pubKey)
{
var script = new Script();
script.writeBytes(signature);
script.writeBytes(pubKey);
return script;
};
/**
* Create a multisig input
*/
Script.createMultiSigInputScript = function(signatures, script)
{
script = new Script(script);
var k = script.chunks[0][0];
if (signatures.length < k) return false; //Not enough sigs
var inScript = new Script();
inScript.writeOp(Opcode.map.OP_0);
signatures.map(function(sig) { inScript.writeBytes(sig) });
inScript.writeBytes(script.buffer);
return inScript;
}
Script.prototype.clone = function ()
{
return new Script(this.buffer);
};
})();
Script.prototype.clone = function ()
{
return new Script(this.buffer);
};
module.exports = Script;

960
src/transaction.js
View File

@ -1,445 +1,587 @@
(function () {
var Script = Bitcoin.Script;
var Transaction = Bitcoin.Transaction = function (doc) {
var BigInteger = require('./jsbn/jsbn');
var Script = require('./script');
var util = require('./util');
var conv = require('./convert');
var Crypto = require('./crypto-js/crypto');
var Wallet = require('./wallet');
var ECKey = require('./eckey').ECKey;
var ECDSA = require('./ecdsa');
var Address = require('./address');
var Transaction = function (doc) {
this.version = 1;
this.lock_time = 0;
this.ins = [];
this.outs = [];
this.timestamp = null;
this.block = null;
if (doc) {
if (doc.hash) this.hash = doc.hash;
if (doc.version) this.version = doc.version;
if (doc.lock_time) this.lock_time = doc.lock_time;
if (doc.ins && doc.ins.length) {
for (var i = 0; i < doc.ins.length; i++) {
this.addInput(new TransactionIn(doc.ins[i]));
if (typeof doc == "string" || util.isArray(doc)) {
doc = Transaction.deserialize(doc)
}
}
if (doc.outs && doc.outs.length) {
for (var i = 0; i < doc.outs.length; i++) {
this.addOutput(new TransactionOut(doc.outs[i]));
if (doc.hash) this.hash = doc.hash;
if (doc.version) this.version = doc.version;
if (doc.lock_time) this.lock_time = doc.lock_time;
if (doc.ins && doc.ins.length) {
for (var i = 0; i < doc.ins.length; i++) {
this.addInput(new TransactionIn(doc.ins[i]));
}
}
}
if (doc.timestamp) this.timestamp = doc.timestamp;
if (doc.block) this.block = doc.block;
}
};
/**
* Turn transaction data into Transaction objects.
*
* Takes an array of plain JavaScript objects containing transaction data and
* returns an array of Transaction objects.
*/
Transaction.objectify = function (txs) {
var objs = [];
for (var i = 0; i < txs.length; i++) {
objs.push(new Transaction(txs[i]));
if (doc.outs && doc.outs.length) {
for (var i = 0; i < doc.outs.length; i++) {
this.addOutput(new TransactionOut(doc.outs[i]));
}
}
if (doc.timestamp) this.timestamp = doc.timestamp;
if (doc.block) this.block = doc.block;
}
return objs;
};
/**
* Create a new txin.
*
* Can be called with an existing TransactionIn object to add it to the
* transaction. Or it can be called with a Transaction object and an integer
* output index, in which case a new TransactionIn object pointing to the
* referenced output will be created.
*
* Note that this method does not sign the created input.
*/
Transaction.prototype.addInput = function (tx, outIndex) {
};
/**
* Turn transaction data into Transaction objects.
*
* Takes an array of plain JavaScript objects containing transaction data and
* returns an array of Transaction objects.
*/
Transaction.objectify = function (txs) {
var objs = [];
for (var i = 0; i < txs.length; i++) {
objs.push(new Transaction(txs[i]));
}
return objs;
};
/**
* Create a new txin.
*
* Can be called with any of:
*
* - An existing TransactionOut object
* - A transaction and an index
* - A transaction hash and an index
* - A single string argument of the form txhash:index
*
* Note that this method does not sign the created input.
*/
Transaction.prototype.addInput = function (tx, outIndex) {
if (arguments[0] instanceof TransactionIn) {
this.ins.push(arguments[0]);
} else {
this.ins.push(new TransactionIn({
outpoint: {
hash: tx.hash,
index: outIndex
},
script: new Bitcoin.Script(),
sequence: 4294967295
}));
this.ins.push(arguments[0]);
}
else if (arguments[0].length > 65) {
var args = arguments[0].split(':');
return this.addInput(args[0], args[1]);
}
else {
this.ins.push(new TransactionIn({
outpoint: {
hash: tx.hash || tx,
index: outIndex
},
script: new Script(),
sequence: 4294967295
}));
}
};
/**
* Create a new txout.
*
* Can be called with an existing TransactionOut object to add it to the
* transaction. Or it can be called with an Address object and a BigInteger
* for the amount, in which case a new TransactionOut object with those
* values will be created.
*/
Transaction.prototype.addOutput = function (address, value) {
};
/**
* Create a new txout.
*
* Can be called with:
*
* i) An existing TransactionOut object
* ii) An address object or an address and a value
* iii) An address:value string
*
*/
Transaction.prototype.addOutput = function (address, value) {
if (arguments[0] instanceof TransactionOut) {
this.outs.push(arguments[0]);
} else {
if (value instanceof BigInteger) {
value = value.toByteArrayUnsigned().reverse();
while (value.length < 8) value.push(0);
} else if (Bitcoin.Util.isArray(value)) {
// Nothing to do
}
this.outs.push(new TransactionOut({
this.outs.push(arguments[0]);
return;
}
if (arguments[0].indexOf(':') >= 0) {
var args = arguments[0].split(':');
address = args[0];
value = parseInt(args[1]);
}
this.outs.push(new TransactionOut({
value: value,
script: Script.createOutputScript(address)
}));
}
};
/**
* Serialize this transaction.
*
* Returns the transaction as a byte array in the standard Bitcoin binary
* format. This method is byte-perfect, i.e. the resulting byte array can
* be hashed to get the transaction's standard Bitcoin hash.
*/
Transaction.prototype.serialize = function ()
{
}));
};
/**
* Serialize this transaction.
*
* Returns the transaction as a byte array in the standard Bitcoin binary
* format. This method is byte-perfect, i.e. the resulting byte array can
* be hashed to get the transaction's standard Bitcoin hash.
*/
Transaction.prototype.serialize = function () {
var buffer = [];
buffer = buffer.concat(Crypto.util.wordsToBytes([parseInt(this.version)]).reverse());
buffer = buffer.concat(Bitcoin.Util.numToVarInt(this.ins.length));
buffer = buffer.concat(util.numToBytes(parseInt(this.version),4));
buffer = buffer.concat(util.numToVarInt(this.ins.length));
for (var i = 0; i < this.ins.length; i++) {
var txin = this.ins[i];
buffer = buffer.concat(Crypto.util.base64ToBytes(txin.outpoint.hash));
buffer = buffer.concat(Crypto.util.wordsToBytes([parseInt(txin.outpoint.index)]).reverse());
var scriptBytes = txin.script.buffer;
buffer = buffer.concat(Bitcoin.Util.numToVarInt(scriptBytes.length));
buffer = buffer.concat(scriptBytes);
buffer = buffer.concat(Crypto.util.wordsToBytes([parseInt(txin.sequence)]).reverse());
}
buffer = buffer.concat(Bitcoin.Util.numToVarInt(this.outs.length));
for (var i = 0; i < this.outs.length; i++) {
var txout = this.outs[i];
buffer = buffer.concat(txout.value);
var scriptBytes = txout.script.buffer;
buffer = buffer.concat(Bitcoin.Util.numToVarInt(scriptBytes.length));
buffer = buffer.concat(scriptBytes);
}
buffer = buffer.concat(Crypto.util.wordsToBytes([parseInt(this.lock_time)]).reverse());
return buffer;
};
var OP_CODESEPARATOR = 171;
var SIGHASH_ALL = 1;
var SIGHASH_NONE = 2;
var SIGHASH_SINGLE = 3;
var SIGHASH_ANYONECANPAY = 80;
/**
* 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, serializes and finally hashes the result. This hash can then be
* used to sign the transaction input in question.
*/
Transaction.prototype.hashTransactionForSignature =
function (connectedScript, inIndex, hashType)
{
var txTmp = this.clone();
// In case concatenating two scripts ends up with two codeseparators,
// or an extra one at the end, this prevents all those possible
// incompatibilities.
/*scriptCode = scriptCode.filter(function (val) {
return val !== OP_CODESEPARATOR;
});*/
// Blank out other inputs' signatures
for (var i = 0; i < txTmp.ins.length; i++) {
txTmp.ins[i].script = new Script();
}
txTmp.ins[inIndex].script = connectedScript;
// Blank out some of the outputs
if ((hashType & 0x1f) == SIGHASH_NONE) {
txTmp.outs = [];
// Let the others update at will
for (var i = 0; i < txTmp.ins.length; i++)
if (i != inIndex)
txTmp.ins[i].sequence = 0;
} else if ((hashType & 0x1f) == SIGHASH_SINGLE) {
// TODO: Implement
}
// Blank out other inputs completely, not recommended for open transactions
if (hashType & SIGHASH_ANYONECANPAY) {
txTmp.ins = [txTmp.ins[inIndex]];
}
var buffer = txTmp.serialize();
buffer = buffer.concat(Crypto.util.wordsToBytes([parseInt(hashType)]).reverse());
var hash1 = Crypto.SHA256(buffer, {asBytes: true});
var txin = this.ins[i];
return Crypto.SHA256(hash1, {asBytes: true});
};
// Why do blockchain.info, blockexplorer.com, sx and just about everybody
// else use little-endian hashes? No idea...
buffer = buffer.concat(conv.hexToBytes(txin.outpoint.hash).reverse());
/**
* Calculate and return the transaction's hash.
*/
Transaction.prototype.getHash = function ()
{
var buffer = this.serialize();
return Crypto.SHA256(Crypto.SHA256(buffer, {asBytes: true}), {asBytes: true});
};
/**
* Create a copy of this transaction object.
*/
Transaction.prototype.clone = function ()
{
var newTx = new Transaction();
newTx.version = this.version;
newTx.lock_time = this.lock_time;
for (var i = 0; i < this.ins.length; i++) {
var txin = this.ins[i].clone();
newTx.addInput(txin);
buffer = buffer.concat(util.numToBytes(parseInt(txin.outpoint.index),4));
var scriptBytes = txin.script.buffer;
buffer = buffer.concat(util.numToVarInt(scriptBytes.length));
buffer = buffer.concat(scriptBytes);
buffer = buffer.concat(util.numToBytes(parseInt(txin.sequence),4));
}
buffer = buffer.concat(util.numToVarInt(this.outs.length));
for (var i = 0; i < this.outs.length; i++) {
var txout = this.outs[i].clone();
newTx.addOutput(txout);
}
return newTx;
};
/**
* Analyze how this transaction affects a wallet.
*
* Returns an object with properties 'impact', 'type' and 'addr'.
*
* 'impact' is an object, see Transaction#calcImpact.
*
* 'type' can be one of the following:
*
* recv:
* This is an incoming transaction, the wallet received money.
* 'addr' contains the first address in the wallet that receives money
* from this transaction.
*
* self:
* This is an internal transaction, money was sent within the wallet.
* 'addr' is undefined.
*
* sent:
* This is an outgoing transaction, money was sent out from the wallet.
* 'addr' contains the first external address, i.e. the recipient.
*
* other:
* This method was unable to detect what the transaction does. Either it
*/
Transaction.prototype.analyze = function (wallet) {
if (!(wallet instanceof Bitcoin.Wallet)) return null;
var allFromMe = true,
allToMe = true,
firstRecvHash = null,
firstMeRecvHash = null,
firstSendHash = null;
for (var i = this.outs.length-1; i >= 0; i--) {
var txout = this.outs[i];
var hash = txout.script.simpleOutPubKeyHash();
if (!wallet.hasHash(hash)) {
allToMe = false;
} else {
firstMeRecvHash = hash;
}
firstRecvHash = hash;
}
for (var i = this.ins.length-1; i >= 0; i--) {
var txin = this.ins[i];
firstSendHash = txin.script.simpleInPubKeyHash();
if (!wallet.hasHash(firstSendHash)) {
allFromMe = false;
break;
}
var txout = this.outs[i];
buffer = buffer.concat(util.numToBytes(txout.value,8));
var scriptBytes = txout.script.buffer;
buffer = buffer.concat(util.numToVarInt(scriptBytes.length));
buffer = buffer.concat(scriptBytes);
}
buffer = buffer.concat(util.numToBytes(parseInt(this.lock_time),4));
var impact = this.calcImpact(wallet);
var analysis = {};
analysis.impact = impact;
if (impact.sign > 0 && impact.value.compareTo(BigInteger.ZERO) > 0) {
analysis.type = 'recv';
analysis.addr = new Bitcoin.Address(firstMeRecvHash);
} else if (allFromMe && allToMe) {
analysis.type = 'self';
} else if (allFromMe) {
analysis.type = 'sent';
// TODO: Right now, firstRecvHash is the first output, which - if the
// transaction was not generated by this library could be the
// change address.
analysis.addr = new Bitcoin.Address(firstRecvHash);
} else {
analysis.type = "other";
return buffer;
};
Transaction.prototype.serializeHex = function() {
return conv.bytesToHex(this.serialize());
}
var OP_CODESEPARATOR = 171;
var SIGHASH_ALL = 1;
var SIGHASH_NONE = 2;
var SIGHASH_SINGLE = 3;
var SIGHASH_ANYONECANPAY = 80;
/**
* 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, serializes and finally hashes the result. This hash can then be
* used to sign the transaction input in question.
*/
Transaction.prototype.hashTransactionForSignature =
function (connectedScript, inIndex, hashType)
{
var txTmp = this.clone();
// In case concatenating two scripts ends up with two codeseparators,
// or an extra one at the end, this prevents all those possible
// incompatibilities.
/*scriptCode = scriptCode.filter(function (val) {
return val !== OP_CODESEPARATOR;
});*/
// Blank out other inputs' signatures
for (var i = 0; i < txTmp.ins.length; i++) {
txTmp.ins[i].script = new Script();
}
txTmp.ins[inIndex].script = connectedScript;
// Blank out some of the outputs
if ((hashType & 0x1f) == SIGHASH_NONE) {
txTmp.outs = [];
// Let the others update at will
for (var i = 0; i < txTmp.ins.length; i++)
if (i != inIndex)
txTmp.ins[i].sequence = 0;
} else if ((hashType & 0x1f) == SIGHASH_SINGLE) {
// TODO: Implement
}
// Blank out other inputs completely, not recommended for open transactions
if (hashType & SIGHASH_ANYONECANPAY) {
txTmp.ins = [txTmp.ins[inIndex]];
}
var buffer = txTmp.serialize();
buffer = buffer.concat(util.numToBytes(parseInt(hashType),4));
var hash1 = Crypto.SHA256(buffer, {asBytes: true});
return Crypto.SHA256(hash1, {asBytes: true});
};
/**
* Calculate and return the transaction's hash.
* Reverses hash since blockchain.info, blockexplorer.com and others
* use little-endian hashes for some stupid reason
*/
Transaction.prototype.getHash = function ()
{
var buffer = this.serialize();
return Crypto.SHA256(Crypto.SHA256(buffer, {asBytes: true}), {asBytes: true}).reverse();
};
/**
* Create a copy of this transaction object.
*/
Transaction.prototype.clone = function ()
{
var newTx = new Transaction();
newTx.version = this.version;
newTx.lock_time = this.lock_time;
for (var i = 0; i < this.ins.length; i++) {
var txin = this.ins[i].clone();
newTx.addInput(txin);
}
for (var i = 0; i < this.outs.length; i++) {
var txout = this.outs[i].clone();
newTx.addOutput(txout);
}
return newTx;
};
/**
* Analyze how this transaction affects a wallet.
*
* Returns an object with properties 'impact', 'type' and 'addr'.
*
* 'impact' is an object, see Transaction#calcImpact.
*
* 'type' can be one of the following:
*
* recv:
* This is an incoming transaction, the wallet received money.
* 'addr' contains the first address in the wallet that receives money
* from this transaction.
*
* self:
* This is an internal transaction, money was sent within the wallet.
* 'addr' is undefined.
*
* sent:
* This is an outgoing transaction, money was sent out from the wallet.
* 'addr' contains the first external address, i.e. the recipient.
*
* other:
* This method was unable to detect what the transaction does. Either it
*/
Transaction.prototype.analyze = function (wallet) {
if (!(wallet instanceof Wallet)) return null;
var allFromMe = true,
allToMe = true,
firstRecvHash = null,
firstMeRecvHash = null,
firstSendHash = null;
for (var i = this.outs.length-1; i >= 0; i--) {
var txout = this.outs[i];
var hash = txout.script.simpleOutPubKeyHash();
if (!wallet.hasHash(hash)) {
allToMe = false;
} else {
firstMeRecvHash = hash;
}
return analysis;
};
/**
* Get a human-readable version of the data returned by Transaction#analyze.
*
* This is merely a convenience function. Clients should consider implementing
* this themselves based on their UI, I18N, etc.
*/
Transaction.prototype.getDescription = function (wallet) {
var analysis = this.analyze(wallet);
if (!analysis) return "";
switch (analysis.type) {
case 'recv':
return "Received with "+analysis.addr;
firstRecvHash = hash;
}
for (var i = this.ins.length-1; i >= 0; i--) {
var txin = this.ins[i];
firstSendHash = txin.script.simpleInPubKeyHash();
if (!wallet.hasHash(firstSendHash)) {
allFromMe = false;
break;
case 'sent':
return "Payment to "+analysis.addr;
break;
case 'self':
return "Payment to yourself";
break;
case 'other':
default:
return "";
}
};
/**
* Get the total amount of a transaction's outputs.
*/
Transaction.prototype.getTotalOutValue = function () {
var totalValue = BigInteger.ZERO;
for (var j = 0; j < this.outs.length; j++) {
var txout = this.outs[j];
totalValue = totalValue.add(Bitcoin.Util.valueToBigInt(txout.value));
}
var impact = this.calcImpact(wallet);
var analysis = {};
analysis.impact = impact;
if (impact.sign > 0 && impact.value > 0) {
analysis.type = 'recv';
analysis.addr = new Address(firstMeRecvHash);
} else if (allFromMe && allToMe) {
analysis.type = 'self';
} else if (allFromMe) {
analysis.type = 'sent';
// TODO: Right now, firstRecvHash is the first output, which - if the
// transaction was not generated by this library could be the
// change address.
analysis.addr = new Address(firstRecvHash);
} else {
analysis.type = "other";
}
return analysis;
};
/**
* Get a human-readable version of the data returned by Transaction#analyze.
*
* This is merely a convenience function. Clients should consider implementing
* this themselves based on their UI, I18N, etc.
*/
Transaction.prototype.getDescription = function (wallet) {
var analysis = this.analyze(wallet);
if (!analysis) return "";
switch (analysis.type) {
case 'recv':
return "Received with "+analysis.addr;
break;
case 'sent':
return "Payment to "+analysis.addr;
break;
case 'self':
return "Payment to yourself";
break;
case 'other':
default:
return "";
}
};
/**
* Get the total amount of a transaction's outputs.
*/
Transaction.prototype.getTotalOutValue = function () {
return this.outs.reduce(function(t,o) { return t + o.value },0);
};
/**
* Old name for Transaction#getTotalOutValue.
*
* @deprecated
*/
Transaction.prototype.getTotalValue = Transaction.prototype.getTotalOutValue;
/**
* Calculates the impact a transaction has on this wallet.
*
* Based on the its public keys, the wallet will calculate the
* credit or debit of this transaction.
*
* It will return an object with two properties:
* - sign: 1 or -1 depending on sign of the calculated impact.
* - value: amount of calculated impact
*
* @returns Object Impact on wallet
*/
Transaction.prototype.calcImpact = function (wallet) {
if (!(wallet instanceof Wallet)) return 0;
// Calculate credit to us from all outputs
var valueOut = this.outs.filter(function(o) {
return wallet.hasHash(conv.bytesToHex(o.script.simpleOutPubKeyHash()));
})
.reduce(function(t,o) { return t+o.value },0);
var valueIn = this.ins.filter(function(i) {
return wallet.hasHash(conv.bytesToHex(i.script.simpleInPubKeyHash()))
&& wallet.txIndex[i.outpoint.hash];
})
.reduce(function(t,i) {
return t + wallet.txIndex[i.outpoint.hash].outs[i.outpoint.index].value
},0);
if (valueOut > valueIn) {
return {
sign: 1,
value: valueOut - valueIn
};
} else {
return {
sign: -1,
value: valueIn - valueOut
};
}
};
/**
* Converts a serialized transaction into a transaction object
*/
Transaction.deserialize = function(buffer) {
if (typeof buffer == "string") {
buffer = conv.hexToBytes(buffer)
}
return totalValue;
};
/**
* Old name for Transaction#getTotalOutValue.
*
* @deprecated
*/
Transaction.prototype.getTotalValue = Transaction.prototype.getTotalOutValue;
/**
* Calculates the impact a transaction has on this wallet.
*
* Based on the its public keys, the wallet will calculate the
* credit or debit of this transaction.
*
* It will return an object with two properties:
* - sign: 1 or -1 depending on sign of the calculated impact.
* - value: amount of calculated impact
*
* @returns Object Impact on wallet
*/
Transaction.prototype.calcImpact = function (wallet) {
if (!(wallet instanceof Bitcoin.Wallet)) return BigInteger.ZERO;
// Calculate credit to us from all outputs
var valueOut = BigInteger.ZERO;
for (var j = 0; j < this.outs.length; j++) {
var txout = this.outs[j];
var hash = Crypto.util.bytesToBase64(txout.script.simpleOutPubKeyHash());
if (wallet.hasHash(hash)) {
valueOut = valueOut.add(Bitcoin.Util.valueToBigInt(txout.value));
}
var pos = 0;
var readAsInt = function(bytes) {
if (bytes == 0) return 0;
pos++;
return buffer[pos-1] + readAsInt(bytes-1) * 256;
}
// Calculate debit to us from all ins
var valueIn = BigInteger.ZERO;
for (var j = 0; j < this.ins.length; j++) {
var txin = this.ins[j];
var hash = Crypto.util.bytesToBase64(txin.script.simpleInPubKeyHash());
if (wallet.hasHash(hash)) {
var fromTx = wallet.txIndex[txin.outpoint.hash];
if (fromTx) {
valueIn = valueIn.add(Bitcoin.Util.valueToBigInt(fromTx.outs[txin.outpoint.index].value));
var readVarInt = function() {
pos++;
if (buffer[pos-1] < 253) {
return buffer[pos-1];
}
}
return readAsInt(buffer[pos-1] - 251);
}
if (valueOut.compareTo(valueIn) >= 0) {
return {
sign: 1,
value: valueOut.subtract(valueIn)
};
} else {
return {
sign: -1,
value: valueIn.subtract(valueOut)
};
var readBytes = function(bytes) {
pos += bytes;
return buffer.slice(pos - bytes, pos);
}
};
var TransactionIn = Bitcoin.TransactionIn = function (data)
{
this.outpoint = data.outpoint;
if (data.script instanceof Script) {
this.script = data.script;
} else {
this.script = new Script(data.script);
var readVarString = function() {
var size = readVarInt();
return readBytes(size);
}
var obj = {
ins: [],
outs: []
}
obj.version = readAsInt(4);
var ins = readVarInt();
for (var i = 0; i < ins; i++) {
obj.ins.push({
outpoint: {
hash: conv.bytesToHex(readBytes(32).reverse()),
index: readAsInt(4)
},
script: new Script(readVarString()),
sequence: readAsInt(4)
});
}
this.sequence = data.sequence;
};
TransactionIn.prototype.clone = function ()
{
var newTxin = new TransactionIn({
outpoint: {
hash: this.outpoint.hash,
index: this.outpoint.index
},
script: this.script.clone(),
sequence: this.sequence
var outs = readVarInt();
for (var i = 0; i < outs; i++) {
obj.outs.push({
value: util.bytesToNum(readBytes(8)),
script: new Script(readVarString())
});
}
obj.locktime = readAsInt(4);
return new Transaction(obj);
}
/**
* Signs a standard output at some index with the given key
*/
Transaction.prototype.sign = function(index, key, type) {
type = type || SIGHASH_ALL;
key = new ECKey(key);
var pub = key.getPub().export('bytes'),
hash160 = util.sha256ripe160(pub),
script = Script.createOutputScript(new Address(hash160)),
hash = this.hashTransactionForSignature( script, index, type),
sig = key.sign(hash).concat([type]);
this.ins[index].script = Script.createInputScript(sig,pub);
}
// Takes outputs of the form [{ output: 'txhash:index', address: 'address' },...]
Transaction.prototype.signWithKeys = function(keys, outputs, type) {
type = type || SIGHASH_ALL;
var addrdata = keys.map(function(key) {
key = new ECKey(key);
return {
key: key,
address: key.getBitcoinAddress().toString()
}
});
return newTxin;
};
var TransactionOut = Bitcoin.TransactionOut = function (data)
{
if (data.script instanceof Script) {
this.script = data.script;
} else {
this.script = new Script(data.script);
var hmap = {};
for (var o in outputs) {
hmap[outputs[o].output] = outputs[o];
}
if (Bitcoin.Util.isArray(data.value)) {
this.value = data.value;
} else if ("string" == typeof data.value) {
var valueHex = (new BigInteger(data.value, 10)).toString(16);
while (valueHex.length < 16) valueHex = "0" + valueHex;
this.value = Crypto.util.hexToBytes(valueHex);
for (var i = 0; i < this.ins.length; i++) {
var outpoint = this.ins[i].outpoint.hash+':'+this.ins[i].outpoint.index,
histItem = hmap[outpoint];
if (!histItem) continue;
var thisInputAddrdata = addrdata.filter(function(a) {
return a.address == histItem.address;
});
if (thisInputAddrdata.length == 0) continue;
this.sign(i,thisInputAddrdata[0].key);
}
};
TransactionOut.prototype.clone = function ()
{
var newTxout = new TransactionOut({
script: this.script.clone(),
value: this.value.slice(0)
}
/**
* Signs a P2SH output at some index with the given key
*/
Transaction.prototype.p2shsign = function(index, script, key, type) {
script = new Script(script);
key = new ECKey(key);
type = type || SIGHASH_ALL;
var hash = this.hashTransactionForSignature(script, index, type),
sig = key.sign(hash).concat([type]);
return sig;
}
Transaction.prototype.multisign = Transaction.prototype.p2shsign;
Transaction.prototype.applyMultisigs = function(index, script, sigs, type) {
this.ins[index].script = Script.createMultiSigInputScript(sigs, script);
}
Transaction.prototype.validateSig = function(index, script, sig, pub) {
script = new Script(script);
var hash = this.hashTransactionForSignature(script,index,1);
return ECDSA.verify(hash, conv.coerceToBytes(sig),
conv.coerceToBytes(pub));
}
var TransactionIn = function (data) {
if (typeof data == "string")
this.outpoint = { hash: data.split(':')[0], index: data.split(':')[1] }
else if (data.outpoint)
this.outpoint = data.outpoint
else
this.outpoint = { hash: data.hash, index: data.index }
if (data.scriptSig)
this.script = Script.fromScriptSig(data.scriptSig)
else
this.script = new Script(data.script)
this.sequence = data.sequence || 4294967295;
};
TransactionIn.prototype.clone = function () {
return new TransactionIn({
outpoint: {
hash: this.outpoint.hash,
index: this.outpoint.index
},
script: this.script.clone(),
sequence: this.sequence
});
return newTxout;
};
})();
};
var TransactionOut = function (data) {
this.script =
data.script instanceof Script ? data.script.clone()
: util.isArray(data.script) ? new Script(data.script)
: typeof data.script == "string" ? new Script(conv.hexToBytes(data.script))
: data.scriptPubKey ? Script.fromScriptSig(data.scriptPubKey)
: data.address ? Script.createOutputScript(data.address)
: new Script();
if (this.script.buffer.length > 0) this.address = this.script.toAddress();
this.value =
util.isArray(data.value) ? util.bytesToNum(data.value)
: "string" == typeof data.value ? parseInt(data.value)
: data.value instanceof BigInteger ? parseInt(data.value.toString())
: data.value;
};
TransactionOut.prototype.clone = function ()
{
var newTxout = new TransactionOut({
script: this.script.clone(),
value: this.value
});
return newTxout;
};
module.exports.Transaction = Transaction;
module.exports.TransactionIn = TransactionIn;
module.exports.TransactionOut = TransactionOut;

4
src/txdb.js
View File

@ -1,3 +1,5 @@
var Transaction = require('./transaction');
var TransactionDatabase = function () {
this.txs = [];
this.txIndex = {};
@ -16,7 +18,7 @@ TransactionDatabase.prototype.addTransactionNoUpdate = function (tx) {
return;
}
this.txs.push(new Bitcoin.Transaction(tx));
this.txs.push(new Transaction(tx));
this.txIndex[tx.hash] = tx;
};

255
src/util.js
View File

@ -1,228 +1,69 @@
// BigInteger monkey patching
BigInteger.valueOf = nbv;
var Crypto = require('./crypto-js/crypto');
/**
* 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.
* Cross-browser compatibility version of Array.isArray.
*/
BigInteger.prototype.toByteArrayUnsigned = function () {
var ba = this.abs().toByteArray();
if (ba.length) {
if (ba[0] == 0) {
ba = ba.slice(1);
}
return ba.map(function (v) {
return (v < 0) ? v + 256 : v;
});
} else {
// Empty array, nothing to do
return ba;
}
};
exports.isArray = Array.isArray || function(o) {
return Object.prototype.toString.call(o) === '[object Array]';
}
/**
* Turns a byte array into a big integer.
*
* This function will interpret a byte array as a big integer in big
* endian notation and ignore leading zeros.
* Create a byte array representing a number with the given length
*/
BigInteger.fromByteArrayUnsigned = function (ba) {
if (!ba.length) {
return ba.valueOf(0);
} else if (ba[0] & 0x80) {
// Prepend a zero so the BigInteger class doesn't mistake this
// for a negative integer.
return new BigInteger([0].concat(ba));
} else {
return new BigInteger(ba);
}
};
exports.numToBytes = function(num, bytes) {
if (bytes === undefined) bytes = 8;
if (bytes === 0) return [];
return [num % 256].concat(module.exports.numToBytes(Math.floor(num / 256), bytes - 1));
}
/**
* Converts big integer to signed byte representation.
*
* The format for this value uses a the most significant bit as a sign
* bit. If the most significant bit is already occupied by the
* absolute value, an extra byte is prepended and the sign bit is set
* there.
*
* Examples:
*
* 0 => 0x00
* 1 => 0x01
* -1 => 0x81
* 127 => 0x7f
* -127 => 0xff
* 128 => 0x0080
* -128 => 0x8080
* 255 => 0x00ff
* -255 => 0x80ff
* 16300 => 0x3fac
* -16300 => 0xbfac
* 62300 => 0x00f35c
* -62300 => 0x80f35c
* Convert a byte array to the number that it represents
*/
BigInteger.prototype.toByteArraySigned = function () {
var val = this.abs().toByteArrayUnsigned();
var neg = this.compareTo(BigInteger.ZERO) < 0;
if (neg) {
if (val[0] & 0x80) {
val.unshift(0x80);
} else {
val[0] |= 0x80;
}
} else {
if (val[0] & 0x80) {
val.unshift(0x00);
}
}
return val;
};
exports.bytesToNum = function(bytes) {
if (bytes.length === 0) return 0;
return bytes[0] + 256 * module.exports.bytesToNum(bytes.slice(1));
}
/**
* Parse a signed big integer byte representation.
* Turn an integer into a "var_int".
*
* "var_int" is a variable length integer used by Bitcoin's binary format.
*
* For details on the format please see BigInteger.toByteArraySigned.
* Returns a byte array.
*/
BigInteger.fromByteArraySigned = function (ba) {
// Check for negative value
if (ba[0] & 0x80) {
// Remove sign bit
ba[0] &= 0x7f;
return BigInteger.fromByteArrayUnsigned(ba).negate();
} else {
return BigInteger.fromByteArrayUnsigned(ba);
}
};
// Console ignore
var names = ["log", "debug", "info", "warn", "error", "assert", "dir",
"dirxml", "group", "groupEnd", "time", "timeEnd", "count",
"trace", "profile", "profileEnd"];
if ("undefined" == typeof window.console) window.console = {};
for (var i = 0; i < names.length; ++i)
if ("undefined" == typeof window.console[names[i]])
window.console[names[i]] = function() {};
// Bitcoin utility functions
Bitcoin.Util = {
/**
* Cross-browser compatibility version of Array.isArray.
*/
isArray: Array.isArray || function(o)
{
return Object.prototype.toString.call(o) === '[object Array]';
},
exports.numToVarInt = function(num) {
if (num < 253) return [num];
if (num < 65536) return [253].concat(exports.numToBytes(num, 2));
if (num < 4294967296) return [254].concat(exports.numToBytes(num, 4));
return [253].concat(exports.numToBytes(num, 8));
}
/**
* Create an array of a certain length filled with a specific value.
*/
makeFilledArray: function (len, val)
{
var array = [];
var i = 0;
while (i < len) {
array[i++] = val;
exports.bytesToWords = function (bytes) {
var words = [];
for (var i = 0, b = 0; i < bytes.length; i++, b += 8) {
words[b >>> 5] |= bytes[i] << (24 - b % 32);
}
return array;
},
return words;
}
/**
* Turn an integer into a "var_int".
*
* "var_int" is a variable length integer used by Bitcoin's binary format.
*
* Returns a byte array.
*/
numToVarInt: function (i)
{
if (i < 0xfd) {
// unsigned char
return [i];
} else if (i <= 1<<16) {
// unsigned short (LE)
return [0xfd, i >>> 8, i & 255];
} else if (i <= 1<<32) {
// unsigned int (LE)
return [0xfe].concat(Crypto.util.wordsToBytes([i]));
} else {
// unsigned long long (LE)
return [0xff].concat(Crypto.util.wordsToBytes([i >>> 32, i]));
exports.wordsToBytes = function (words) {
var bytes = [];
for (var b = 0; b < words.length * 32; b += 8) {
bytes.push((words[b >>> 5] >>> (24 - b % 32)) & 0xFF);
}
},
/**
* Parse a Bitcoin value byte array, returning a BigInteger.
*/
valueToBigInt: function (valueBuffer)
{
if (valueBuffer instanceof BigInteger) return valueBuffer;
return bytes;
},
// Prepend zero byte to prevent interpretation as negative integer
return BigInteger.fromByteArrayUnsigned(valueBuffer);
},
/**
* Format a Bitcoin value as a string.
*
* Takes a BigInteger or byte-array and returns that amount of Bitcoins in a
* nice standard formatting.
*
* Examples:
* 12.3555
* 0.1234
* 900.99998888
* 34.00
*/
formatValue: function (valueBuffer) {
var value = this.valueToBigInt(valueBuffer).toString();
var integerPart = value.length > 8 ? value.substr(0, value.length-8) : '0';
var decimalPart = value.length > 8 ? value.substr(value.length-8) : value;
while (decimalPart.length < 8) decimalPart = "0"+decimalPart;
decimalPart = decimalPart.replace(/0*$/, '');
while (decimalPart.length < 2) decimalPart += "0";
return integerPart+"."+decimalPart;
},
/**
* Parse a floating point string as a Bitcoin value.
*
* Keep in mind that parsing user input is messy. You should always display
* the parsed value back to the user to make sure we understood his input
* correctly.
*/
parseValue: function (valueString) {
// TODO: Detect other number formats (e.g. comma as decimal separator)
var valueComp = valueString.split('.');
var integralPart = valueComp[0];
var fractionalPart = valueComp[1] || "0";
while (fractionalPart.length < 8) fractionalPart += "0";
fractionalPart = fractionalPart.replace(/^0+/g, '');
var value = BigInteger.valueOf(parseInt(integralPart));
value = value.multiply(BigInteger.valueOf(100000000));
value = value.add(BigInteger.valueOf(parseInt(fractionalPart)));
return value;
},
/**
* Calculate RIPEMD160(SHA256(data)).
*
* Takes an arbitrary byte array as inputs and returns the hash as a byte
* array.
*/
sha256ripe160: function (data) {
/**
* Calculate RIPEMD160(SHA256(data)).
*
* Takes an arbitrary byte array as inputs and returns the hash as a byte
* array.
*/
exports.sha256ripe160 = function (data) {
return Crypto.RIPEMD160(Crypto.SHA256(data, {asBytes: true}), {asBytes: true});
}
};
}
for (var i in Crypto.util) {
if (Crypto.util.hasOwnProperty(i)) {
Bitcoin.Util[i] = Crypto.util[i];
}
exports.error = function(msg) {
throw new Error(msg);
}

430
src/wallet.js
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@ -1,308 +1,182 @@
Bitcoin.Wallet = (function () {
var Script = Bitcoin.Script,
TransactionIn = Bitcoin.TransactionIn,
TransactionOut = Bitcoin.TransactionOut;
var Script = require('./script');
var ECKey = require('./eckey').ECKey;
var conv = require('./convert');
var util = require('./util');
var Wallet = function () {
// Keychain
//
// The keychain is stored as a var in this closure to make accidental
// serialization less likely.
//
// Any functions accessing this value therefore have to be defined in
// the closure of this constructor.
var keys = [];
// Public hashes of our keys
this.addressHashes = [];
// Transaction data
this.txIndex = {};
this.unspentOuts = [];
// Other fields
this.addressPointer = 0;
/**
* Add a key to the keychain.
*
* The corresponding public key can be provided as a second parameter. This
* adds it to the cache in the ECKey object and avoid the need to
* expensively calculate it later.
*/
this.addKey = function (key, pub) {
if (!(key instanceof Bitcoin.ECKey)) {
key = new Bitcoin.ECKey(key);
}
keys.push(key);
if (pub) {
if ("string" === typeof pub) {
pub = Crypto.util.base64ToBytes(pub);
}
key.setPub(pub);
}
this.addressHashes.push(key.getBitcoinAddress().getHashBase64());
};
/**
* Add multiple keys at once.
*/
this.addKeys = function (keys, pubs) {
if ("string" === typeof keys) {
keys = keys.split(',');
}
if ("string" === typeof pubs) {
pubs = pubs.split(',');
}
var i;
if (Array.isArray(pubs) && keys.length == pubs.length) {
for (i = 0; i < keys.length; i++) {
this.addKey(keys[i], pubs[i]);
}
} else {
for (i = 0; i < keys.length; i++) {
this.addKey(keys[i]);
}
}
};
var BigInteger = require('./jsbn/jsbn');
/**
* Get the key chain.
*
* Returns an array of base64-encoded private values.
*/
this.getKeys = function () {
var serializedWallet = [];
var Transaction = require('./transaction').Transaction;
var TransactionIn = require('./transaction').TransactionIn;
var TransactionOut = require('./transaction').TransactionOut;
var HDWallet = require('./hdwallet.js')
for (var i = 0; i < keys.length; i++) {
serializedWallet.push(keys[i].toString('base64'));
}
var SecureRandom = require('./jsbn/rng');
var rng = new SecureRandom();
return serializedWallet;
};
var Wallet = function (seed) {
/**
* Get the public keys.
*
* Returns an array of base64-encoded public keys.
*/
this.getPubKeys = function () {
var pubs = [];
for (var i = 0; i < keys.length; i++) {
pubs.push(Crypto.util.bytesToBase64(keys[i].getPub()));
}
return pubs;
};
/**
* Delete all keys.
*/
this.clear = function () {
keys = [];
};
/**
* Return the number of keys in this wallet.
*/
this.getLength = function () {
return keys.length;
};
/**
* Get the addresses for this wallet.
*
* Returns an array of Address objects.
*/
this.getAllAddresses = function () {
var addresses = [];
for (var i = 0; i < keys.length; i++) {
addresses.push(keys[i].getBitcoinAddress());
}
return addresses;
};
this.getCurAddress = function () {
if (keys[this.addressPointer]) {
return keys[this.addressPointer].getBitcoinAddress();
} else {
return null;
}
};
// Stored in a closure to make accidental serialization less likely
var keys = [];
var masterkey = null;
var me = this;
/**
* Go to the next address.
*
* If there are no more new addresses available, one will be generated
* automatically.
*/
this.getNextAddress = function () {
this.addressPointer++;
if (!keys[this.addressPointer]) {
this.generateAddress();
}
return keys[this.addressPointer].getBitcoinAddress();
};
// Addresses
this.addresses = [];
/**
* Sign a hash with a key.
*
* This method expects the pubKeyHash as the first parameter and the hash
* to be signed as the second parameter.
*/
this.signWithKey = function (pubKeyHash, hash) {
pubKeyHash = Crypto.util.bytesToBase64(pubKeyHash);
for (var i = 0; i < this.addressHashes.length; i++) {
if (this.addressHashes[i] == pubKeyHash) {
return keys[i].sign(hash);
}
}
throw new Error("Missing key for signature");
};
// Transaction output data
this.outputs = {};
/**
* Retrieve the corresponding pubKey for a pubKeyHash.
*
* This function only works if the pubKey in question is part of this
* wallet.
*/
this.getPubKeyFromHash = function (pubKeyHash) {
pubKeyHash = Crypto.util.bytesToBase64(pubKeyHash);
for (var i = 0; i < this.addressHashes.length; i++) {
if (this.addressHashes[i] == pubKeyHash) {
return keys[i].getPub();
// Make a new master key
this.newMasterKey = function(seed) {
if (!seed) {
var seedBytes = new Array(32);
rng.nextBytes(seedBytes);
seed = conv.bytesToString(seedBytes)
}
}
throw new Error("Hash unknown");
};
};
Wallet.prototype.generateAddress = function () {
this.addKey(new Bitcoin.ECKey());
};
/**
* Add a transaction to the wallet's processed transaction.
*
* This will add a transaction to the wallet, updating its balance and
* available unspent outputs.
*/
Wallet.prototype.process = function (tx) {
if (this.txIndex[tx.hash]) return;
masterkey = new HDWallet(seed);
keys = []
}
this.newMasterKey(seed)
var j;
var k;
var hash;
// Gather outputs
for (j = 0; j < tx.outs.length; j++) {
var txout = new TransactionOut(tx.outs[j]);
hash = Crypto.util.bytesToBase64(txout.script.simpleOutPubKeyHash());
for (k = 0; k < this.addressHashes.length; k++) {
if (this.addressHashes[k] === hash) {
this.unspentOuts.push({tx: tx, index: j, out: txout});
break;
}
}
// Add a new address
this.generateAddress = function() {
keys.push(masterkey.ckd(keys.length).key)
this.addresses.push(keys[keys.length-1].getBitcoinAddress().toString())
return this.addresses[this.addresses.length - 1]
}
// Remove spent outputs
for (j = 0; j < tx.ins.length; j++) {
var txin = new TransactionIn(tx.ins[j]);
var pubkey = txin.script.simpleInPubKey();
hash = Crypto.util.bytesToBase64(Bitcoin.Util.sha256ripe160(pubkey));
for (k = 0; k < this.addressHashes.length; k++) {
if (this.addressHashes[k] === hash) {
for (var l = 0; l < this.unspentOuts.length; l++) {
if (txin.outpoint.hash == this.unspentOuts[l].tx.hash &&
txin.outpoint.index == this.unspentOuts[l].index) {
this.unspentOuts.splice(l, 1);
// Processes a transaction object
// If "verified" is true, then we trust the transaction as "final"
this.processTx = function(tx, verified) {
var txhash = conv.bytesToHex(tx.getHash())
for (var i = 0; i < tx.outs.length; i++) {
if (this.addresses.indexOf(tx.outs[i].address.toString()) >= 0) {
me.outputs[txhash+':'+i] = {
output: txhash+':'+i,
value: tx.outs[i].value,
address: tx.outs[i].address.toString(),
timestamp: new Date().getTime() / 1000,
pending: true
}
}
}
for (var i = 0; i < tx.ins.length; i++) {
var op = tx.ins[i].outpoint
var o = me.outputs[op.hash+':'+op.index]
if (o) {
o.spend = txhash+':'+i
o.spendpending = true
o.timestamp = new Date().getTime() / 1000
}
}
break;
}
}
}
// Index transaction
this.txIndex[tx.hash] = tx;
};
Wallet.prototype.getBalance = function () {
var balance = BigInteger.valueOf(0);
for (var i = 0; i < this.unspentOuts.length; i++) {
var txout = this.unspentOuts[i].out;
balance = balance.add(Bitcoin.Util.valueToBigInt(txout.value));
// Processes an output from an external source of the form
// { output: txhash:index, value: integer, address: address }
// Excellent compatibility with SX and pybitcointools
this.processOutput = function(o) {
if (!this.outputs[o.output] || this.outputs[o.output].pending)
this.outputs[o.output] = o;
}
return balance;
};
Wallet.prototype.createSend = function (address, sendValue, feeValue) {
var selectedOuts = [];
var txValue = sendValue.add(feeValue);
var availableValue = BigInteger.ZERO;
var i;
for (i = 0; i < this.unspentOuts.length; i++) {
selectedOuts.push(this.unspentOuts[i]);
availableValue = availableValue.add(Bitcoin.Util.valueToBigInt(this.unspentOuts[i].out.value));
if (availableValue.compareTo(txValue) >= 0) break;
this.processExistingOutputs = function() {
var t = new Date().getTime() / 1000
for (var o in this.outputs) {
if (o.pending && t > o.timestamp + 1200)
delete this.outputs[o]
if (o.spendpending && t > o.timestamp + 1200) {
o.spendpending = false
o.spend = false
delete o.timestamp
}
}
}
if (availableValue.compareTo(txValue) < 0) {
throw new Error('Insufficient funds.');
var peoInterval = setInterval(this.processExistingOutputs, 10000)
this.getUtxoToPay = function(value) {
var h = []
for (var out in this.outputs) h.push(this.outputs[out])
var utxo = h.filter(function(x) { return !x.spend });
var valuecompare = function(a,b) { return a.value > b.value; }
var high = utxo.filter(function(o) { return o.value >= value; })
.sort(valuecompare);
if (high.length > 0) return [high[0]];
utxo.sort(valuecompare);
var totalval = 0;
for (var i = 0; i < utxo.length; i++) {
totalval += utxo[i].value;
if (totalval >= value) return utxo.slice(0,i+1);
}
throw ("Not enough money to send funds including transaction fee. Have: "
+ (totalval / 100000000) + ", needed: " + (value / 100000000));
}
var changeValue = availableValue.subtract(txValue);
var sendTx = new Bitcoin.Transaction();
for (i = 0; i < selectedOuts.length; i++) {
sendTx.addInput(selectedOuts[i].tx, selectedOuts[i].index);
this.mkSend = function(to, value, fee) {
var utxo = this.getUtxoToPay(value + fee)
var sum = utxo.reduce(function(t,o) { return t + o.value },0),
remainder = sum - value - fee
if (value < 5430) throw new Error("Amount below dust threshold!")
var unspentOuts = 0;
for (var o in this.outputs) {
if (!this.outputs[o].spend) unspentOuts += 1
if (unspentOuts >= 5) return
}
var change = this.addresses[this.addresses.length - 1]
var toOut = { address: to, value: value },
changeOut = { address: change, value: remainder }
halfChangeOut = { address: change, value: Math.floor(remainder/2) };
var outs =
remainder < 5430 ? [toOut]
: remainder < 10860 ? [toOut, changeOut]
: unspentOuts == 5 ? [toOut, changeOut]
: [toOut, halfChangeOut, halfChangeOut]
var tx = new Bitcoin.Transaction({
ins: utxo.map(function(x) { return x.output }),
outs: outs
})
this.sign(tx)
return tx
}
sendTx.addOutput(address, sendValue);
if (changeValue.compareTo(BigInteger.ZERO) > 0) {
sendTx.addOutput(this.getNextAddress(), changeValue);
this.mkSendToOutputs = function(outputs, changeIndex, fee) {
var value = outputs.reduce(function(t,o) { return t + o.value },0),
utxo = this.getUtxoToPay(value + fee),
sum = utxo.reduce(function(t,p) { return t + o.value },0);
utxo[changeIndex].value += sum - value - fee;
var tx = new Bitcoin.Transaction({
ins: utxo.map(function(x) { return x.output }),
outs: outputs
})
this.sign(tx)
return tx
}
var hashType = 1; // SIGHASH_ALL
for (i = 0; i < sendTx.ins.length; i++) {
var hash = sendTx.hashTransactionForSignature(selectedOuts[i].out.script, i, hashType);
var pubKeyHash = selectedOuts[i].out.script.simpleOutPubKeyHash();
var signature = this.signWithKey(pubKeyHash, hash);
// Append hash type
signature.push(parseInt(hashType, 10));
sendTx.ins[i].script = Script.createInputScript(signature, this.getPubKeyFromHash(pubKeyHash));
this.sign = function(tx) {
tx.ins.map(function(inp,i) {
var inp = inp.outpoint.hash+':'+inp.outpoint.index;
if (me.outputs[inp]) {
var address = me.outputs[inp].address,
ind = me.addresses.indexOf(address);
if (ind >= 0) {
var key = keys[ind]
tx.sign(ind,key)
}
}
})
return tx;
}
return sendTx;
};
Wallet.prototype.clearTransactions = function () {
this.txIndex = {};
this.unspentOuts = [];
};
/**
* Check to see if a pubKeyHash belongs to this wallet.
*/
Wallet.prototype.hasHash = function (hash) {
if (Bitcoin.Util.isArray(hash)) hash = Crypto.util.bytesToBase64(hash);
this.getMasterKey = function() { return masterkey }
// TODO: Just create an object with base64 hashes as keys for faster lookup
for (var k = 0; k < this.addressHashes.length; k++) {
if (this.addressHashes[k] === hash) return true;
this.getPrivateKey = function(index) {
if (typeof index == "string")
return keys.filter(function(i,k){ return addresses[i] == index })[0]
else
return keys[index]
}
return false;
};
return Wallet;
})();
this.getPrivateKeys = function() { return keys }
};
module.exports = Wallet;

52
test/address.js
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/* global describe, it */
var assert = require('assert');
var Address = require('../src/address.js');
describe('Address', function() {
describe('toString', function() {
it('defaults to base58', function() {
var addr = '18fN1QTGWmHWCA9r2dyDH6FbMEyc7XHmQQ';
assert.equal((new Address(addr)).toString(), addr);
})
})
describe('validate', function() {
it('validates known good addresses', function() {
function validate(addr) {
assert.ok(Address.validate(addr));
}
validate('1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa');
// validate('1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa', 'prod');
validate('mzBc4XEFSdzCDcTxAgf6EZXgsZWpztRhef');
// validate('mzBc4XEFSdzCDcTxAgf6EZXgsZWpztRhef', 'testnet');
validate('12KYrjTdVGjFMtaxERSk3gphreJ5US8aUP');
validate('12QeMLzSrB8XH8FvEzPMVoRxVAzTr5XM2y');
validate('1oNLrsHnBcR6dpaBpwz3LSwutbUNkNSjs');
validate('1SQHtwR5oJRKLfiWQ2APsAd9miUc4k2ez');
validate('116CGDLddrZhMrTwhCVJXtXQpxygTT1kHd');
// p2sh addresses
validate('3NJZLcZEEYBpxYEUGewU4knsQRn1WM5Fkt');
// validate('3NJZLcZEEYBpxYEUGewU4knsQRn1WM5Fkt', 'prod');
validate('2MxKEf2su6FGAUfCEAHreGFQvEYrfYNHvL7');
// validate('2MxKEf2su6FGAUfCEAHreGFQvEYrfYNHvL7', 'testnet');
})
it('does not validate illegal examples', function() {
function invalid(addr) {
assert.ok(!Address.validate(addr));
}
invalid('');
invalid('mzBc4XEFSdzCDcTxAgf6EZXgsZWpztRhe');
// invalid('1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa', 'testnet');
// invalid('mzBc4XEFSdzCDcTxAgf6EZXgsZWpztRhef', 'prod');
// invalid base58 string
invalid('%%@');
})
})
})

22
test/base58.js
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/* global describe, it */
var assert = require('assert');
var base58 = require('../').base58;
var conv = require('../').convert;
describe('base58', function() {
describe('decode', function() {
it('validates known examples', function() {
var enc = '5HueCGU8rMjxEXxiPuD5BDku4MkFqeZyd4dZ1jvhTVqvbTLvyTJ';
var hex = '800c28fca386c7a227600b2fe50b7cae11ec86d3bf1fbe471be89827e19d72aa1d507a5b8d';
assert.deepEqual(base58.decode(enc), conv.hexToBytes(hex));
})
})
describe('encode', function() {
it('handles known examples', function() {
var enc = '5HueCGU8rMjxEXxiPuD5BDku4MkFqeZyd4dZ1jvhTVqvbTLvyTJ';
var hex = '800c28fca386c7a227600b2fe50b7cae11ec86d3bf1fbe471be89827e19d72aa1d507a5b8d';
assert.equal(base58.encode(conv.hexToBytes(hex)), enc);
})
})
})

28
test/convert.js
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/* global describe, it */
var assert = require('assert');
var convert = require('../src/convert.js');
describe('convert', function() {
describe('bytesToHex', function() {
it('handles example 1', function() {
assert.equal(convert.bytesToHex([0, 1, 2, 255]), '000102ff');
})
})
describe('hexToBytes', function() {
it('handles example 1', function() {
assert.deepEqual(convert.hexToBytes('000102ff'), [0, 1, 2, 255]);
})
})
it('converts from bytes to hex and back', function() {
var bytes = [];
for (var i=0 ; i<256 ; ++i) {
bytes.push(i);
}
var hex = convert.bytesToHex(bytes);
assert.equal(hex.length, 512);
assert.deepEqual(convert.hexToBytes(hex), bytes);
})
})

23
test/ec.js
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/* global describe, it */
var assert = require('assert');
var sec = require('../src/jsbn/sec');
var ecdsa = require('../').ecdsa;
var ecparams = sec('secp256k1');
describe('ecdsa', function() {
it('handles point ultiplication', function() {
var G = ecparams.getG();
var n = ecparams.getN();
assert.ok(G.multiply(n).isInfinity(), "Gn is infinite");
var k = ecdsa.getBigRandom(n);
var P = G.multiply(k);
assert.ok(!P.isInfinity(), "kG is not infinite");
assert.ok(P.isOnCurve(), "kG on curve");
assert.ok(P.multiply(n).isInfinity(), "kGn is infinite");
assert.ok(P.validate(), "kG validates as a public key");
})
})

43
test/eckey.js
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/* global describe, it */
var assert = require('assert');
var ECKey = require('../src/eckey.js').ECKey;
var convert = require('../src/convert.js');
var bytesToHex = convert.bytesToHex;
var hexToBytes = convert.hexToBytes;
describe('ECKey', function() {
describe('constructor (base58 private)', function() {
it('parses case 1', function() {
var priv = '18e14a7b6a307f426a94f8114701e7c8e774e7f9a47e2c2035db29a206321725';
var pub = '0450863ad64a87ae8a2fe83c1af1a8403cb53f53e486d8511dad8a04887e5b235' +
'22cd470243453a299fa9e77237716103abc11a1df38855ed6f2ee187e9c582ba6';
var key = new ECKey(hexToBytes(priv));
assert.equal(bytesToHex(key.getPub()['export']('bytes')), pub);
assert.equal(key.compressed, false);
})
it('parses case 2', function() {
var priv = '5HwoXVkHoRM8sL2KmNRS217n1g8mPPBomrY7yehCuXC1115WWsh';
var pub = '044f355bdcb7cc0af728ef3cceb9615d90684bb5b2ca5f859ab0' +
'f0b704075871aa385b6b1b8ead809ca67454d9683fcf2ba03456d6fe2c4abe2b07f0fbdbb2f1c1';
var addr = '1MsHWS1BnwMc3tLE8G35UXsS58fKipzB7a';
var key = new ECKey(priv);
assert.equal(key.compressed, false);
assert.equal(bytesToHex(key.getPub()['export']('bytes')), pub);
assert.equal(key.getBitcoinAddress().toString(), addr);
})
it('parses case 3', function() {
var priv = 'KwntMbt59tTsj8xqpqYqRRWufyjGunvhSyeMo3NTYpFYzZbXJ5Hp';
var pub = '034f355bdcb7cc0af728ef3cceb9615d90684bb5b2ca5f859ab0f0b704075871aa'
var addr = '1Q1pE5vPGEEMqRcVRMbtBK842Y6Pzo6nK9';
var key = new ECKey(priv);
assert.equal(key.compressed, true);
assert.equal(bytesToHex(key.getPub()['export']('bytes')), pub);
assert.equal(key.getBitcoinAddress().toString(), addr);
})
})
})

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test/hdwallet.js
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/* global describe, it */
var HDWallet = require('../src/hdwallet.js')
, assert = require('assert')
, convert = require('../src/convert.js')
var b2h = convert.bytesToHex
describe('HDWallet', function() {
describe('toBase58', function() {
it('reproduces input', function() {
var input = 'xpub6D4BDPcP2GT577Vvch3R8wDkScZWzQzMMUm3PWbmWvVJrZwQY4VUNgqFJPMM3No2dFDFGTsxxpG5uJh7n7epu4trkrX7x7DogT5Uv6fcLW5'
, output = HDWallet.fromBase58(input).toBase58(false)
assert.equal(output, input)
input = 'xprvA2JDeKCSNNZky6uBCviVfJSKyQ1mDYahRjijr5idH2WwLsEd4Hsb2Tyh8RfQMuPh7f7RtyzTtdrbdqqsunu5Mm3wDvUAKRHSC34sJ7in334'
output = HDWallet.fromBase58(input).toBase58(true)
assert.equal(output, input)
})
it('fails with priv=true when theres no private key', function() {
var hd = HDWallet.fromBase58('xpub6DF8uhdarytz3FWdA8TvFSvvAh8dP3283MY7p2V4SeE2wyWmG5mg5EwVvmdMVCQcoNJxGoWaU9DCWh89LojfZ537wTfunKau47EL2dhHKon')
try {
hd.toBase58(true)
} catch(e) {
assert(e.message.match(/private key/i))
return
}
assert.fail()
})
})
describe('ctor', function() {
it('creates from seed', function() {
var seed = 'crazy horse battery staple'
, hd = new HDWallet(seed)
assert(hd.priv)
assert(hd.pub)
})
})
describe('Test vectors', function() {
it('Test vector 1', function() {
var hd = HDWallet.fromMasterHex('000102030405060708090a0b0c0d0e0f')
// m
assert.equal(b2h(hd.getIdentifier()), '3442193e1bb70916e914552172cd4e2dbc9df811')
assert.equal(b2h(hd.getFingerprint()), '3442193e')
assert.equal(hd.getBitcoinAddress().toString(), '15mKKb2eos1hWa6tisdPwwDC1a5J1y9nma')
assert.equal(hd.priv.toHex(), 'e8f32e723decf4051aefac8e2c93c9c5b214313817cdb01a1494b917c8436b3501')
assert.equal(hd.priv.toWif(), 'L52XzL2cMkHxqxBXRyEpnPQZGUs3uKiL3R11XbAdHigRzDozKZeW')
assert.equal(hd.pub.toHex(), '0339a36013301597daef41fbe593a02cc513d0b55527ec2df1050e2e8ff49c85c2')
assert.equal(b2h(hd.chaincode), '873dff81c02f525623fd1fe5167eac3a55a049de3d314bb42ee227ffed37d508')
assert.equal(hd.toHex(false), '0488b21e000000000000000000873dff81c02f525623fd1fe5167eac3a55a049de3d314bb42ee227ffed37d5080339a36013301597daef41fbe593a02cc513d0b55527ec2df1050e2e8ff49c85c2')
assert.equal(hd.toHex(true), '0488ade4000000000000000000873dff81c02f525623fd1fe5167eac3a55a049de3d314bb42ee227ffed37d50800e8f32e723decf4051aefac8e2c93c9c5b214313817cdb01a1494b917c8436b35')
assert.equal(hd.toBase58(false), 'xpub661MyMwAqRbcFtXgS5sYJABqqG9YLmC4Q1Rdap9gSE8NqtwybGhePY2gZ29ESFjqJoCu1Rupje8YtGqsefD265TMg7usUDFdp6W1EGMcet8')
assert.equal(hd.toBase58(true), 'xprv9s21ZrQH143K3QTDL4LXw2F7HEK3wJUD2nW2nRk4stbPy6cq3jPPqjiChkVvvNKmPGJxWUtg6LnF5kejMRNNU3TGtRBeJgk33yuGBxrMPHi')
// m/0'
hd = hd.derivePrivate(0)
assert.equal(b2h(hd.getIdentifier()), '5c1bd648ed23aa5fd50ba52b2457c11e9e80a6a7')
assert.equal(b2h(hd.getFingerprint()), '5c1bd648')
assert.equal(hd.getBitcoinAddress().toString(), '19Q2WoS5hSS6T8GjhK8KZLMgmWaq4neXrh')
assert.equal(hd.priv.toHex().slice(0, 64), 'edb2e14f9ee77d26dd93b4ecede8d16ed408ce149b6cd80b0715a2d911a0afea')
assert.equal(hd.priv.toWif(), 'L5BmPijJjrKbiUfG4zbiFKNqkvuJ8usooJmzuD7Z8dkRoTThYnAT')
assert.equal(hd.pub.toHex(), '035a784662a4a20a65bf6aab9ae98a6c068a81c52e4b032c0fb5400c706cfccc56')
assert.equal(b2h(hd.chaincode), '47fdacbd0f1097043b78c63c20c34ef4ed9a111d980047ad16282c7ae6236141')
assert.equal(hd.toHex(false), '0488b21e013442193e8000000047fdacbd0f1097043b78c63c20c34ef4ed9a111d980047ad16282c7ae6236141035a784662a4a20a65bf6aab9ae98a6c068a81c52e4b032c0fb5400c706cfccc56')
assert.equal(hd.toHex(true), '0488ade4013442193e8000000047fdacbd0f1097043b78c63c20c34ef4ed9a111d980047ad16282c7ae623614100edb2e14f9ee77d26dd93b4ecede8d16ed408ce149b6cd80b0715a2d911a0afea')
assert.equal(hd.toBase58(false), 'xpub68Gmy5EdvgibQVfPdqkBBCHxA5htiqg55crXYuXoQRKfDBFA1WEjWgP6LHhwBZeNK1VTsfTFUHCdrfp1bgwQ9xv5ski8PX9rL2dZXvgGDnw')
assert.equal(hd.toBase58(true), 'xprv9uHRZZhk6KAJC1avXpDAp4MDc3sQKNxDiPvvkX8Br5ngLNv1TxvUxt4cV1rGL5hj6KCesnDYUhd7oWgT11eZG7XnxHrnYeSvkzY7d2bhkJ7')
// m/0'/1
hd = hd.derive(1)
assert.equal(b2h(hd.getIdentifier()), 'bef5a2f9a56a94aab12459f72ad9cf8cf19c7bbe')
assert.equal(b2h(hd.getFingerprint()), 'bef5a2f9')
assert.equal(hd.getBitcoinAddress().toString(), '1JQheacLPdM5ySCkrZkV66G2ApAXe1mqLj')
assert.equal(hd.priv.toHex().slice(0, 64), '3c6cb8d0f6a264c91ea8b5030fadaa8e538b020f0a387421a12de9319dc93368')
assert.equal(hd.priv.toWif(), 'KyFAjQ5rgrKvhXvNMtFB5PCSKUYD1yyPEe3xr3T34TZSUHycXtMM')
assert.equal(hd.pub.toHex(), '03501e454bf00751f24b1b489aa925215d66af2234e3891c3b21a52bedb3cd711c')
assert.equal(b2h(hd.chaincode), '2a7857631386ba23dacac34180dd1983734e444fdbf774041578e9b6adb37c19')
assert.equal(hd.toHex(false), '0488b21e025c1bd648000000012a7857631386ba23dacac34180dd1983734e444fdbf774041578e9b6adb37c1903501e454bf00751f24b1b489aa925215d66af2234e3891c3b21a52bedb3cd711c')
assert.equal(hd.toHex(true), '0488ade4025c1bd648000000012a7857631386ba23dacac34180dd1983734e444fdbf774041578e9b6adb37c19003c6cb8d0f6a264c91ea8b5030fadaa8e538b020f0a387421a12de9319dc93368')
assert.equal(hd.toBase58(false), 'xpub6ASuArnXKPbfEwhqN6e3mwBcDTgzisQN1wXN9BJcM47sSikHjJf3UFHKkNAWbWMiGj7Wf5uMash7SyYq527Hqck2AxYysAA7xmALppuCkwQ')
assert.equal(hd.toBase58(true), 'xprv9wTYmMFdV23N2TdNG573QoEsfRrWKQgWeibmLntzniatZvR9BmLnvSxqu53Kw1UmYPxLgboyZQaXwTCg8MSY3H2EU4pWcQDnRnrVA1xe8fs')
// m/0'/1/2'
hd = hd.derivePrivate(2)
assert.equal(b2h(hd.getIdentifier()), 'ee7ab90cde56a8c0e2bb086ac49748b8db9dce72')
assert.equal(b2h(hd.getFingerprint()), 'ee7ab90c')
assert.equal(hd.getBitcoinAddress().toString(), '1NjxqbA9aZWnh17q1UW3rB4EPu79wDXj7x')
assert.equal(hd.priv.toHex().slice(0, 64), 'cbce0d719ecf7431d88e6a89fa1483e02e35092af60c042b1df2ff59fa424dca')
assert.equal(hd.priv.toWif(), 'L43t3od1Gh7Lj55Bzjj1xDAgJDcL7YFo2nEcNaMGiyRZS1CidBVU')
assert.equal(hd.pub.toHex(), '0357bfe1e341d01c69fe5654309956cbea516822fba8a601743a012a7896ee8dc2')
assert.equal(b2h(hd.chaincode), '04466b9cc8e161e966409ca52986c584f07e9dc81f735db683c3ff6ec7b1503f')
assert.equal(hd.toHex(false), '0488b21e03bef5a2f98000000204466b9cc8e161e966409ca52986c584f07e9dc81f735db683c3ff6ec7b1503f0357bfe1e341d01c69fe5654309956cbea516822fba8a601743a012a7896ee8dc2')
assert.equal(hd.toHex(true), '0488ade403bef5a2f98000000204466b9cc8e161e966409ca52986c584f07e9dc81f735db683c3ff6ec7b1503f00cbce0d719ecf7431d88e6a89fa1483e02e35092af60c042b1df2ff59fa424dca')
assert.equal(hd.toBase58(false), 'xpub6D4BDPcP2GT577Vvch3R8wDkScZWzQzMMUm3PWbmWvVJrZwQY4VUNgqFJPMM3No2dFDFGTsxxpG5uJh7n7epu4trkrX7x7DogT5Uv6fcLW5')
assert.equal(hd.toBase58(true), 'xprv9z4pot5VBttmtdRTWfWQmoH1taj2axGVzFqSb8C9xaxKymcFzXBDptWmT7FwuEzG3ryjH4ktypQSAewRiNMjANTtpgP4mLTj34bhnZX7UiM')
// m/0'/1/2'/2
hd = hd.derive(2)
assert.equal(b2h(hd.getIdentifier()), 'd880d7d893848509a62d8fb74e32148dac68412f')
assert.equal(b2h(hd.getFingerprint()), 'd880d7d8')
assert.equal(hd.getBitcoinAddress().toString(), '1LjmJcdPnDHhNTUgrWyhLGnRDKxQjoxAgt')
assert.equal(hd.priv.toHex().slice(0, 64), '0f479245fb19a38a1954c5c7c0ebab2f9bdfd96a17563ef28a6a4b1a2a764ef4')
assert.equal(hd.priv.toWif(), 'KwjQsVuMjbCP2Zmr3VaFaStav7NvevwjvvkqrWd5Qmh1XVnCteBR')
assert.equal(hd.pub.toHex(), '02e8445082a72f29b75ca48748a914df60622a609cacfce8ed0e35804560741d29')
assert.equal(b2h(hd.chaincode), 'cfb71883f01676f587d023cc53a35bc7f88f724b1f8c2892ac1275ac822a3edd')
assert.equal(hd.toHex(false), '0488b21e04ee7ab90c00000002cfb71883f01676f587d023cc53a35bc7f88f724b1f8c2892ac1275ac822a3edd02e8445082a72f29b75ca48748a914df60622a609cacfce8ed0e35804560741d29')
assert.equal(hd.toHex(true), '0488ade404ee7ab90c00000002cfb71883f01676f587d023cc53a35bc7f88f724b1f8c2892ac1275ac822a3edd000f479245fb19a38a1954c5c7c0ebab2f9bdfd96a17563ef28a6a4b1a2a764ef4')
assert.equal(hd.toBase58(false), 'xpub6FHa3pjLCk84BayeJxFW2SP4XRrFd1JYnxeLeU8EqN3vDfZmbqBqaGJAyiLjTAwm6ZLRQUMv1ZACTj37sR62cfN7fe5JnJ7dh8zL4fiyLHV')
assert.equal(hd.toBase58(true), 'xprvA2JDeKCSNNZky6uBCviVfJSKyQ1mDYahRjijr5idH2WwLsEd4Hsb2Tyh8RfQMuPh7f7RtyzTtdrbdqqsunu5Mm3wDvUAKRHSC34sJ7in334')
// m/0'/1/2'/2/1000000000
hd = hd.derive(1000000000)
assert.equal(b2h(hd.getIdentifier()), 'd69aa102255fed74378278c7812701ea641fdf32')
assert.equal(b2h(hd.getFingerprint()), 'd69aa102')
assert.equal(hd.getBitcoinAddress().toString(), '1LZiqrop2HGR4qrH1ULZPyBpU6AUP49Uam')
assert.equal(hd.priv.toHex().slice(0, 64), '471b76e389e528d6de6d816857e012c5455051cad6660850e58372a6c3e6e7c8')
assert.equal(hd.priv.toWif(), 'Kybw8izYevo5xMh1TK7aUr7jHFCxXS1zv8p3oqFz3o2zFbhRXHYs')
assert.equal(hd.pub.toHex(), '022a471424da5e657499d1ff51cb43c47481a03b1e77f951fe64cec9f5a48f7011')
assert.equal(b2h(hd.chaincode), 'c783e67b921d2beb8f6b389cc646d7263b4145701dadd2161548a8b078e65e9e')
assert.equal(hd.toHex(false), '0488b21e05d880d7d83b9aca00c783e67b921d2beb8f6b389cc646d7263b4145701dadd2161548a8b078e65e9e022a471424da5e657499d1ff51cb43c47481a03b1e77f951fe64cec9f5a48f7011')
assert.equal(hd.toHex(true), '0488ade405d880d7d83b9aca00c783e67b921d2beb8f6b389cc646d7263b4145701dadd2161548a8b078e65e9e00471b76e389e528d6de6d816857e012c5455051cad6660850e58372a6c3e6e7c8')
assert.equal(hd.toBase58(false), 'xpub6H1LXWLaKsWFhvm6RVpEL9P4KfRZSW7abD2ttkWP3SSQvnyA8FSVqNTEcYFgJS2UaFcxupHiYkro49S8yGasTvXEYBVPamhGW6cFJodrTHy')
assert.equal(hd.toBase58(true), 'xprvA41z7zogVVwxVSgdKUHDy1SKmdb533PjDz7J6N6mV6uS3ze1ai8FHa8kmHScGpWmj4WggLyQjgPie1rFSruoUihUZREPSL39UNdE3BBDu76')
})
it('Test vector 2', function() {
var hd = HDWallet.fromMasterHex('fffcf9f6f3f0edeae7e4e1dedbd8d5d2cfccc9c6c3c0bdbab7b4b1aeaba8a5a29f9c999693908d8a8784817e7b7875726f6c696663605d5a5754514e4b484542')
// m
assert.equal(b2h(hd.getIdentifier()), 'bd16bee53961a47d6ad888e29545434a89bdfe95')
assert.equal(b2h(hd.getFingerprint()), 'bd16bee5')
assert.equal(hd.getBitcoinAddress().toString(), '1JEoxevbLLG8cVqeoGKQiAwoWbNYSUyYjg')
assert.equal(hd.priv.toHex().slice(0, 64), '4b03d6fc340455b363f51020ad3ecca4f0850280cf436c70c727923f6db46c3e')
assert.equal(hd.priv.toWif(), 'KyjXhyHF9wTphBkfpxjL8hkDXDUSbE3tKANT94kXSyh6vn6nKaoy')
assert.equal(hd.pub.toHex(), '03cbcaa9c98c877a26977d00825c956a238e8dddfbd322cce4f74b0b5bd6ace4a7')
assert.equal(b2h(hd.chaincode), '60499f801b896d83179a4374aeb7822aaeaceaa0db1f85ee3e904c4defbd9689')
assert.equal(hd.toHex(false), '0488b21e00000000000000000060499f801b896d83179a4374aeb7822aaeaceaa0db1f85ee3e904c4defbd968903cbcaa9c98c877a26977d00825c956a238e8dddfbd322cce4f74b0b5bd6ace4a7')
assert.equal(hd.toHex(true), '0488ade400000000000000000060499f801b896d83179a4374aeb7822aaeaceaa0db1f85ee3e904c4defbd9689004b03d6fc340455b363f51020ad3ecca4f0850280cf436c70c727923f6db46c3e')
assert.equal(hd.toBase58(false), 'xpub661MyMwAqRbcFW31YEwpkMuc5THy2PSt5bDMsktWQcFF8syAmRUapSCGu8ED9W6oDMSgv6Zz8idoc4a6mr8BDzTJY47LJhkJ8UB7WEGuduB')
assert.equal(hd.toBase58(true), 'xprv9s21ZrQH143K31xYSDQpPDxsXRTUcvj2iNHm5NUtrGiGG5e2DtALGdso3pGz6ssrdK4PFmM8NSpSBHNqPqm55Qn3LqFtT2emdEXVYsCzC2U')
// m/0
hd = hd.derive(0)
assert.equal(b2h(hd.getIdentifier()), '5a61ff8eb7aaca3010db97ebda76121610b78096')
assert.equal(b2h(hd.getFingerprint()), '5a61ff8e')
assert.equal(hd.getBitcoinAddress().toString(), '19EuDJdgfRkwCmRzbzVBHZWQG9QNWhftbZ')
assert.equal(hd.priv.toHex().slice(0, 64), 'abe74a98f6c7eabee0428f53798f0ab8aa1bd37873999041703c742f15ac7e1e')
assert.equal(hd.priv.toWif(), 'L2ysLrR6KMSAtx7uPqmYpoTeiRzydXBattRXjXz5GDFPrdfPzKbj')
assert.equal(hd.pub.toHex(), '02fc9e5af0ac8d9b3cecfe2a888e2117ba3d089d8585886c9c826b6b22a98d12ea')
assert.equal(b2h(hd.chaincode), 'f0909affaa7ee7abe5dd4e100598d4dc53cd709d5a5c2cac40e7412f232f7c9c')
assert.equal(hd.toHex(false), '0488b21e01bd16bee500000000f0909affaa7ee7abe5dd4e100598d4dc53cd709d5a5c2cac40e7412f232f7c9c02fc9e5af0ac8d9b3cecfe2a888e2117ba3d089d8585886c9c826b6b22a98d12ea')
assert.equal(hd.toHex(true), '0488ade401bd16bee500000000f0909affaa7ee7abe5dd4e100598d4dc53cd709d5a5c2cac40e7412f232f7c9c00abe74a98f6c7eabee0428f53798f0ab8aa1bd37873999041703c742f15ac7e1e')
assert.equal(hd.toBase58(false), 'xpub69H7F5d8KSRgmmdJg2KhpAK8SR3DjMwAdkxj3ZuxV27CprR9LgpeyGmXUbC6wb7ERfvrnKZjXoUmmDznezpbZb7ap6r1D3tgFxHmwMkQTPH')
assert.equal(hd.toBase58(true), 'xprv9vHkqa6EV4sPZHYqZznhT2NPtPCjKuDKGY38FBWLvgaDx45zo9WQRUT3dKYnjwih2yJD9mkrocEZXo1ex8G81dwSM1fwqWpWkeS3v86pgKt')
// m/0/2147483647'
hd = hd.derivePrivate(2147483647)
assert.equal(b2h(hd.getIdentifier()), 'd8ab493736da02f11ed682f88339e720fb0379d1')
assert.equal(b2h(hd.getFingerprint()), 'd8ab4937')
assert.equal(hd.getBitcoinAddress().toString(), '1Lke9bXGhn5VPrBuXgN12uGUphrttUErmk')
assert.equal(hd.priv.toHex().slice(0, 64), '877c779ad9687164e9c2f4f0f4ff0340814392330693ce95a58fe18fd52e6e93')
assert.equal(hd.priv.toWif(), 'L1m5VpbXmMp57P3knskwhoMTLdhAAaXiHvnGLMribbfwzVRpz2Sr')
assert.equal(hd.pub.toHex(), '03c01e7425647bdefa82b12d9bad5e3e6865bee0502694b94ca58b666abc0a5c3b')
assert.equal(b2h(hd.chaincode), 'be17a268474a6bb9c61e1d720cf6215e2a88c5406c4aee7b38547f585c9a37d9')
assert.equal(hd.toHex(false), '0488b21e025a61ff8effffffffbe17a268474a6bb9c61e1d720cf6215e2a88c5406c4aee7b38547f585c9a37d903c01e7425647bdefa82b12d9bad5e3e6865bee0502694b94ca58b666abc0a5c3b')
assert.equal(hd.toHex(true), '0488ade4025a61ff8effffffffbe17a268474a6bb9c61e1d720cf6215e2a88c5406c4aee7b38547f585c9a37d900877c779ad9687164e9c2f4f0f4ff0340814392330693ce95a58fe18fd52e6e93')
assert.equal(hd.toBase58(false), 'xpub6ASAVgeehLbnwdqV6UKMHVzgqAG8Gr6riv3Fxxpj8ksbH9ebxaEyBLZ85ySDhKiLDBrQSARLq1uNRts8RuJiHjaDMBU4Zn9h8LZNnBC5y4a')
assert.equal(hd.toBase58(true), 'xprv9wSp6B7kry3Vj9m1zSnLvN3xH8RdsPP1Mh7fAaR7aRLcQMKTR2vidYEeEg2mUCTAwCd6vnxVrcjfy2kRgVsFawNzmjuHc2YmYRmagcEPdU9')
// m/0/2147483647'/1
hd = hd.derive(1)
assert.equal(b2h(hd.getIdentifier()), '78412e3a2296a40de124307b6485bd19833e2e34')
assert.equal(b2h(hd.getFingerprint()), '78412e3a')
assert.equal(hd.getBitcoinAddress().toString(), '1BxrAr2pHpeBheusmd6fHDP2tSLAUa3qsW')
assert.equal(hd.priv.toHex().slice(0, 64), '704addf544a06e5ee4bea37098463c23613da32020d604506da8c0518e1da4b7')
assert.equal(hd.priv.toWif(), 'KzyzXnznxSv249b4KuNkBwowaN3akiNeEHy5FWoPCJpStZbEKXN2')
assert.equal(hd.pub.toHex(), '03a7d1d856deb74c508e05031f9895dab54626251b3806e16b4bd12e781a7df5b9')
assert.equal(b2h(hd.chaincode), 'f366f48f1ea9f2d1d3fe958c95ca84ea18e4c4ddb9366c336c927eb246fb38cb')
assert.equal(hd.toHex(false), '0488b21e03d8ab493700000001f366f48f1ea9f2d1d3fe958c95ca84ea18e4c4ddb9366c336c927eb246fb38cb03a7d1d856deb74c508e05031f9895dab54626251b3806e16b4bd12e781a7df5b9')
assert.equal(hd.toHex(true), '0488ade403d8ab493700000001f366f48f1ea9f2d1d3fe958c95ca84ea18e4c4ddb9366c336c927eb246fb38cb00704addf544a06e5ee4bea37098463c23613da32020d604506da8c0518e1da4b7')
assert.equal(hd.toBase58(false), 'xpub6DF8uhdarytz3FWdA8TvFSvvAh8dP3283MY7p2V4SeE2wyWmG5mg5EwVvmdMVCQcoNJxGoWaU9DCWh89LojfZ537wTfunKau47EL2dhHKon')
assert.equal(hd.toBase58(true), 'xprv9zFnWC6h2cLgpmSA46vutJzBcfJ8yaJGg8cX1e5StJh45BBciYTRXSd25UEPVuesF9yog62tGAQtHjXajPPdbRCHuWS6T8XA2ECKADdw4Ef')
// m/0/2147483647'/1/2147483646'
hd = hd.derivePrivate(2147483646)
assert.equal(b2h(hd.getIdentifier()), '31a507b815593dfc51ffc7245ae7e5aee304246e')
assert.equal(b2h(hd.getFingerprint()), '31a507b8')
assert.equal(hd.getBitcoinAddress().toString(), '15XVotxCAV7sRx1PSCkQNsGw3W9jT9A94R')
assert.equal(hd.priv.toHex().slice(0, 64), 'f1c7c871a54a804afe328b4c83a1c33b8e5ff48f5087273f04efa83b247d6a2d')
assert.equal(hd.priv.toWif(), 'L5KhaMvPYRW1ZoFmRjUtxxPypQ94m6BcDrPhqArhggdaTbbAFJEF')
assert.equal(hd.pub.toHex(), '02d2b36900396c9282fa14628566582f206a5dd0bcc8d5e892611806cafb0301f0')
assert.equal(b2h(hd.chaincode), '637807030d55d01f9a0cb3a7839515d796bd07706386a6eddf06cc29a65a0e29')
assert.equal(hd.toHex(false), '0488b21e0478412e3afffffffe637807030d55d01f9a0cb3a7839515d796bd07706386a6eddf06cc29a65a0e2902d2b36900396c9282fa14628566582f206a5dd0bcc8d5e892611806cafb0301f0')
assert.equal(hd.toHex(true), '0488ade40478412e3afffffffe637807030d55d01f9a0cb3a7839515d796bd07706386a6eddf06cc29a65a0e2900f1c7c871a54a804afe328b4c83a1c33b8e5ff48f5087273f04efa83b247d6a2d')
assert.equal(hd.toBase58(false), 'xpub6ERApfZwUNrhLCkDtcHTcxd75RbzS1ed54G1LkBUHQVHQKqhMkhgbmJbZRkrgZw4koxb5JaHWkY4ALHY2grBGRjaDMzQLcgJvLJuZZvRcEL')
assert.equal(hd.toBase58(true), 'xprvA1RpRA33e1JQ7ifknakTFpgNXPmW2YvmhqLQYMmrj4xJXXWYpDPS3xz7iAxn8L39njGVyuoseXzU6rcxFLJ8HFsTjSyQbLYnMpCqE2VbFWc')
// Chain m/0/2147483647'/1/2147483646'/2
hd = hd.derive(2)
assert.equal(b2h(hd.getIdentifier()), '26132fdbe7bf89cbc64cf8dafa3f9f88b8666220')
assert.equal(b2h(hd.getFingerprint()), '26132fdb')
assert.equal(hd.getBitcoinAddress().toString(), '14UKfRV9ZPUp6ZC9PLhqbRtxdihW9em3xt')
assert.equal(hd.priv.toHex().slice(0, 64), 'bb7d39bdb83ecf58f2fd82b6d918341cbef428661ef01ab97c28a4842125ac23')
assert.equal(hd.priv.toWif(), 'L3WAYNAZPxx1fr7KCz7GN9nD5qMBnNiqEJNJMU1z9MMaannAt4aK')
assert.equal(hd.pub.toHex(), '024d902e1a2fc7a8755ab5b694c575fce742c48d9ff192e63df5193e4c7afe1f9c')
assert.equal(b2h(hd.chaincode), '9452b549be8cea3ecb7a84bec10dcfd94afe4d129ebfd3b3cb58eedf394ed271')
assert.equal(hd.toHex(false), '0488b21e0531a507b8000000029452b549be8cea3ecb7a84bec10dcfd94afe4d129ebfd3b3cb58eedf394ed271024d902e1a2fc7a8755ab5b694c575fce742c48d9ff192e63df5193e4c7afe1f9c')
assert.equal(hd.toHex(true), '0488ade40531a507b8000000029452b549be8cea3ecb7a84bec10dcfd94afe4d129ebfd3b3cb58eedf394ed27100bb7d39bdb83ecf58f2fd82b6d918341cbef428661ef01ab97c28a4842125ac23')
assert.equal(hd.toBase58(false), 'xpub6FnCn6nSzZAw5Tw7cgR9bi15UV96gLZhjDstkXXxvCLsUXBGXPdSnLFbdpq8p9HmGsApME5hQTZ3emM2rnY5agb9rXpVGyy3bdW6EEgAtqt')
assert.equal(hd.toBase58(true), 'xprvA2nrNbFZABcdryreWet9Ea4LvTJcGsqrMzxHx98MMrotbir7yrKCEXw7nadnHM8Dq38EGfSh6dqA9QWTyefMLEcBYJUuekgW4BYPJcr9E7j')
})
})
})

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test/index.html
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@ -1,36 +0,0 @@
<!DOCTYPE html>
<html>
<head>
<title>BitcoinJS-lib Test Suite</title>
<link rel="stylesheet" href="../vendor/qunit/qunit.css" type="text/css" media="screen">
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js"></script>
<script type="text/javascript" src="../vendor/qunit/qunit.js"></script>
<script type="text/javascript" src="../src/crypto-js/crypto.js"></script>
<script type="text/javascript" src="../src/crypto-js/sha256.js"></script>
<script type="text/javascript" src="../src/jsbn/prng4.js"></script>
<script type="text/javascript" src="../src/jsbn/rng.js"></script>
<script type="text/javascript" src="../src/jsbn/jsbn.js"></script>
<script type="text/javascript" src="../src/jsbn/jsbn2.js"></script>
<script type="text/javascript" src="../src/jsbn/ec.js"></script>
<script type="text/javascript" src="../src/jsbn/sec.js"></script>
<script type="text/javascript" src="../src/events/eventemitter.js"></script>
<script type="text/javascript" src="../src/bitcoin.js"></script>
<script type="text/javascript" src="../src/util.js"></script>
<script type="text/javascript" src="../src/base58.js"></script>
<script type="text/javascript" src="../src/address.js"></script>
<script type="text/javascript" src="../src/ecdsa.js"></script>
<script type="text/javascript" src="../src/eckey.js"></script>
<script type="text/javascript" src="../src/paillier.js"></script>
<script type="text/javascript" src="test.js"></script>
</head>
<body>
<h1 id="qunit-header">BitcoinJS-lib Test Suite</h1>
<h2 id="qunit-banner"></h2>
<div id="qunit-testrunner-toolbar"></div>
<h2 id="qunit-userAgent"></h2>
<ol id="qunit-tests"></ol>
<div id="qunit-fixture"></div>
</body>
</html>

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test/jsbn.js
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/* global describe, it */
var assert = require('assert');
var BigInteger = require('../src/jsbn/jsbn.js')
var bytesToHex = require('../src/convert.js').bytesToHex;
describe('BigInteger', function() {
describe('toByteArraySigned', function() {
it('handles examples', function() {
function hex(num) {
var bytes = BigInteger.valueOf(num).toByteArraySigned();
var h = bytesToHex(bytes);
return '0x' + h;
}
assert.equal(hex( 0), '0x');
assert.equal(hex( 1), '0x01');
assert.equal(hex(-1), '0x81');
assert.equal(hex( 127), '0x7f');
assert.equal(hex(-127), '0xff');
assert.equal(hex( 255), '0x00ff');
assert.equal(hex(-255), '0x80ff');
assert.equal(hex( 16300), '0x3fac');
assert.equal(hex(-16300), '0xbfac');
assert.equal(hex( 62300), '0x00f35c');
assert.equal(hex(-62300), '0x80f35c');
})
})
})

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test/message.js
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/* global describe, it */
var assert = require('assert');
var Message = require('../src/message.js');
var ECKey = require('../src/eckey.js').ECKey;
var hexToBytes = require('../src/convert.js').hexToBytes;
var priv = '18e14a7b6a307f426a94f8114701e7c8e774e7f9a47e2c2035db29a206321725';
var addr = '16UwLL9Risc3QfPqBUvKofHmBQ7wMtjvM';
var msg = 'foobar';
describe('Message', function() {
describe('verify', function() {
it('passes case 1', function() {
var key = new ECKey(hexToBytes(priv));
assert.equal(key.getBitcoinAddress().toString(), addr);
var sig = Message.signMessage(key, msg);
assert.ok(Message.verifyMessage(addr, sig, msg));
// wrong message
assert.ok(!Message.verifyMessage(addr, sig, 'not foobar'));
// wrong address
assert.ok(!Message.verifyMessage('1MsHWS1BnwMc3tLE8G35UXsS58fKipzB7a', sig, msg));
})
it('passes case 2', function() {
var priv = '5HwoXVkHoRM8sL2KmNRS217n1g8mPPBomrY7yehCuXC1115WWsh';
var key = new ECKey(hexToBytes(priv));
var sig = Message.signMessage(key, msg);
assert.ok(!Message.verifyMessage(addr, sig, msg));
})
})
})

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test/misc.js
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/* global it */
var assert = require('assert');
var bitcoinjs = require('../');
var sec = require('../src/jsbn/sec');
var BigInteger = require('../src/jsbn/jsbn.js');
var Crypto = require('../src/crypto-js/crypto.js');
var SecureRandom = require('../src/jsbn/rng');
var rng = new SecureRandom();
var ecparams = sec('secp256k1');
var ECPointFp = bitcoinjs.ECPointFp;
it('Keys & Key Management', function () {
var p1 = bitcoinjs.Key().getPub()['export']('bytes');
assert.equal(p1.length, 65);
var p1_q = ECPointFp.decodeFrom(ecparams.getCurve(), p1);
assert.ok(p1_q);
assert.ok(p1_q.validate());
var p2 = bitcoinjs.convert.hexToBytes(
'0486f356006a38b847bedec1bf47013776925d939d5a35a97a4d1263e550c7f1a' +
'b5aba44ab74d22892097a0e851addf07ba97e33416df5affaceeb35d5607cd23c');
var p2_q = ECPointFp.decodeFrom(ecparams.getCurve(), p2);
assert.ok(p2_q);
assert.ok(p2_q.validate());
});
it('Signing and Verifying', function () {
var s1 = bitcoinjs.Key();
var sig_a = s1.sign(BigInteger.ZERO);
assert.ok(sig_a, 'Sign null');
assert.ok(s1.verify(BigInteger.ZERO, sig_a));
var message = new BigInteger(1024, rng).toByteArrayUnsigned();
var hash = Crypto.SHA256(message, {
asBytes: true
});
var sig_b = s1.sign(hash);
assert.ok(sig_b, 'Sign random string');
assert.ok(s1.verify(hash, sig_b));
var message2 = bitcoinjs.convert.hexToBytes(
'12dce2c169986b3346827ffb2305cf393984627f5f9722a1b1368e933c8d' +
'd296653fbe5d7ac031c4962ad0eb1c4298c3b91d244e1116b4a76a130c13' +
'1e7aec7fa70184a71a2e66797052831511b93c6e8d72ae58a1980eaacb66' +
'8a33f50d7cefb96a5dab897b5efcb99cbafb0d777cb83fc9b2115b69c0fa' +
'3d82507b932b84e4');
var hash2 = Crypto.SHA256(message2, {
asBytes: true
});
var sig_c = bitcoinjs.convert.hexToBytes(
'3044022038d9b8dd5c9fbf330565c1f51d72a59ba869aeb2c2001be959d3' +
'79e861ec71960220a73945f32cf90d03127d2c3410d16cee120fa1a4b4c3' +
'f273ab082801a95506c4');
var s2 = bitcoinjs.convert.hexToBytes(
'045a1594316e433fb91f35ef4874610d22177c3f1a1060f6c1e70a609d51' +
'b20be5795cd2a5eae0d6b872ba42db95e9afaeea3fbb89e98099575b6828' +
'609a978528');
assert.ok(bitcoinjs.ecdsa.verify(hash2, sig_c, s2), 'Verify constant signature');
});

1
test/mocha.opts
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--ui qunit

112
test/test.js
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//
// Testing elliptic curve math
// -----------------------------------------------------------------------------
module("ec");
var ecparams = getSECCurveByName("secp256k1");
var rng = new SecureRandom();
test("Classes", function () {
expect(3);
ok(ECPointFp, "ECPointFp");
ok(ECFieldElementFp, "ECFieldElementFp");
ok(ECCurveFp, "ECCurveFp");
});
test("Point multiplication", function () {
expect(5);
var G = ecparams.getG();
var n = ecparams.getN();
ok(G.multiply(n).isInfinity(), "Gn is infinite");
var k = Bitcoin.ECDSA.getBigRandom(n);
var P = G.multiply(k);
ok(!P.isInfinity(), "kG is not infinite");
ok(P.isOnCurve(), "kG on curve");
ok(P.multiply(n).isInfinity(), "kGn is infinite");
ok(P.validate(), "kG validates as a public key");
});
//
// Testing ECDSA
// -----------------------------------------------------------------------------
module("ecdsa");
test("Classes", function () {
expect(2);
ok(Bitcoin.ECDSA, "Bitcoin.ECDSA");
ok(Bitcoin.ECKey, "Bitcoin.ECKey");
});
test("Keys & Key Management", function () {
expect(5);
var s1 = new Bitcoin.ECKey();
var p1 = s1.getPub();
equals(p1.length, 65, "Public key is correct length");
var p1_q = ECPointFp.decodeFrom(ecparams.getCurve(), p1);
ok(p1_q, "Decode point from generated bytestring");
ok(p1_q.validate(), "Is a valid public point");
var p2 = Crypto.util.hexToBytes(
"0486f356006a38b847bedec1bf47013776925d939d5a35a97a4d1263e550c7f1a" +
"b5aba44ab74d22892097a0e851addf07ba97e33416df5affaceeb35d5607cd23c"
);
var p2_q = ECPointFp.decodeFrom(ecparams.getCurve(), p2);
ok(p2_q, "Decode point from constant");
ok(p2_q.validate(), "Is a valid public point");
});
test("Signing and Verifying", function () {
expect(7);
var s1 = new Bitcoin.ECKey();
var sig_a = s1.sign(BigInteger.ZERO);
ok(sig_a, "Sign null");
equals(sig_a.length, 70, "Signature is correct length");
ok(s1.verify(BigInteger.ZERO, sig_a));
var message = new BigInteger(1024, rng).toByteArrayUnsigned();
var hash = Crypto.SHA256(message, {asBytes: true});
var sig_b = s1.sign(hash);
ok(sig_b, "Sign random string");
equals(sig_b.length, 70, "Signature is correct length");
ok(s1.verify(hash, sig_b));
var message2 = Crypto.util.hexToBytes(
"12dce2c169986b3346827ffb2305cf393984627f5f9722a1b1368e933c8d" +
"d296653fbe5d7ac031c4962ad0eb1c4298c3b91d244e1116b4a76a130c13" +
"1e7aec7fa70184a71a2e66797052831511b93c6e8d72ae58a1980eaacb66" +
"8a33f50d7cefb96a5dab897b5efcb99cbafb0d777cb83fc9b2115b69c0fa" +
"3d82507b932b84e4"
);
var hash2 = Crypto.SHA256(message2, {asBytes: true});
var sig_c = Crypto.util.hexToBytes(
"3044022038d9b8dd5c9fbf330565c1f51d72a59ba869aeb2c2001be959d3" +
"79e861ec71960220a73945f32cf90d03127d2c3410d16cee120fa1a4b4c3" +
"f273ab082801a95506c4"
);
var s2 = Crypto.util.hexToBytes(
"045a1594316e433fb91f35ef4874610d22177c3f1a1060f6c1e70a609d51" +
"b20be5795cd2a5eae0d6b872ba42db95e9afaeea3fbb89e98099575b6828" +
"609a978528"
);
ok(Bitcoin.ECDSA.verify(hash2, sig_c, s2), "Verify constant signature");
});
//
// Testing Paillier
// -----------------------------------------------------------------------------
module("paillier");
test("Classes", function () {
expect(3);
ok(Bitcoin.Paillier, "Bitcoin.Paillier");
ok(Bitcoin.Paillier.PublicKey, "Bitcoin.Paillier.PublicKey");
ok(Bitcoin.Paillier.PrivateKey, "Bitcoin.Paillier.PrivateKey");
});

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/**
* QUnit - A JavaScript Unit Testing Framework
*
* http://docs.jquery.com/QUnit
*
* Copyright (c) 2011 John Resig, Jörn Zaefferer
* Dual licensed under the MIT (MIT-LICENSE.txt)
* or GPL (GPL-LICENSE.txt) licenses.
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