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103 lines
4.2 KiB
103 lines
4.2 KiB
var assert = require('assert')
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var crypto = require('crypto')
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var BigInteger = require('bigi')
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var bs58 = require('bs58')
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var ecurve = require('ecurve')
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var secureRandom = require('secure-random')
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var ecparams = ecurve.getCurveByName('secp256k1')
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var HDKey = require('../')
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var fixtures = require('./fixtures/hdkey')
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function encode(buf) {
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var hash = crypto.createHash('sha256').update(buf).digest()
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var chksum = crypto.createHash('sha256').update(hash).digest().slice(0,4)
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return bs58.encode(Buffer.concat([buf, chksum]))
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}
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describe('hdkey', function() {
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describe('+ fromMasterSeed', function() {
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var f = fixtures.valid.forEach(function(f) {
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it('should properly derive the chain path: ' + f.path, function() {
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var hdkey = HDKey.fromMasterSeed(new Buffer(f.seed, 'hex'))
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var childkey = hdkey.derive(f.path)
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assert.equal(encode(childkey.privateExtendedKey), f.private)
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assert.equal(encode(childkey.publicExtendedKey), f.public)
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})
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})
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})
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describe('- privateKey', function() {
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it('should throw an error if incorrect key size', function() {
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var hdkey = new HDKey()
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assert.throws(function() {
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hdkey.privateKey = new Buffer([1,2,3,4])
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},/key must be 32/)
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})
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})
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describe('- publicKey', function() {
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it('should throw an error if incorrect key size', function() {
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assert.throws(function() {
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var hdkey = new HDKey()
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hdkey.publicKey = new Buffer([1,2,3,4])
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},/key must be 33 or 65/)
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})
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it('should not throw if key is 33 bytes (compressed)', function() {
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var priv = secureRandom.randomBuffer(32)
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var pub = ecparams.G.multiply(BigInteger.fromBuffer(priv)).getEncoded(true)
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assert.equal(pub.length, 33)
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var hdkey = new HDKey()
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hdkey.publicKey = pub
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})
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it('should not throw if key is 65 bytes (not compressed)', function() {
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var priv = secureRandom.randomBuffer(32)
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var pub = ecparams.G.multiply(BigInteger.fromBuffer(priv)).getEncoded(false)
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assert.equal(pub.length, 65)
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var hdkey = new HDKey()
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hdkey.publicKey = pub
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})
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})
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describe('+ fromExtendedKey()', function() {
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describe('> when private', function() {
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it('should parse it', function() {
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//m/0/2147483647'/1/2147483646'/2
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var key = "xprvA2nrNbFZABcdryreWet9Ea4LvTJcGsqrMzxHx98MMrotbir7yrKCEXw7nadnHM8Dq38EGfSh6dqA9QWTyefMLEcBYJUuekgW4BYPJcr9E7j"
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var keyBuffer = bs58.decode(key).slice(0, 78)
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var hdkey = HDKey.fromExtendedKey(keyBuffer)
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assert.equal(hdkey.versions.private, 0x0488ade4)
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assert.equal(hdkey.versions.public, 0x0488b21e)
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assert.equal(hdkey.depth, 5)
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assert.equal(hdkey.parentFingerprint, 0x31a507b8)
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assert.equal(hdkey.index, 2)
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assert.equal(hdkey.chainCode.toString('hex'), '9452b549be8cea3ecb7a84bec10dcfd94afe4d129ebfd3b3cb58eedf394ed271')
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assert.equal(hdkey.privateKey.toString('hex'), 'bb7d39bdb83ecf58f2fd82b6d918341cbef428661ef01ab97c28a4842125ac23')
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assert.equal(hdkey.publicKey.toString('hex'), '024d902e1a2fc7a8755ab5b694c575fce742c48d9ff192e63df5193e4c7afe1f9c')
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assert.equal(hdkey.identifier.toString('hex'), '26132fdbe7bf89cbc64cf8dafa3f9f88b8666220')
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})
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})
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describe('> when public', function() {
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it('should parse it', function() {
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//m/0/2147483647'/1/2147483646'/2
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var key = "xpub6FnCn6nSzZAw5Tw7cgR9bi15UV96gLZhjDstkXXxvCLsUXBGXPdSnLFbdpq8p9HmGsApME5hQTZ3emM2rnY5agb9rXpVGyy3bdW6EEgAtqt"
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var keyBuffer = bs58.decode(key).slice(0, 78)
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var hdkey = HDKey.fromExtendedKey(keyBuffer)
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assert.equal(hdkey.versions.private, 0x0488ade4)
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assert.equal(hdkey.versions.public, 0x0488b21e)
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assert.equal(hdkey.depth, 5)
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assert.equal(hdkey.parentFingerprint, 0x31a507b8)
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assert.equal(hdkey.index, 2)
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assert.equal(hdkey.chainCode.toString('hex'), '9452b549be8cea3ecb7a84bec10dcfd94afe4d129ebfd3b3cb58eedf394ed271')
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assert.equal(hdkey.privateKey, null)
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assert.equal(hdkey.publicKey.toString('hex'), '024d902e1a2fc7a8755ab5b694c575fce742c48d9ff192e63df5193e4c7afe1f9c')
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assert.equal(hdkey.identifier.toString('hex'), '26132fdbe7bf89cbc64cf8dafa3f9f88b8666220')
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})
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})
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})
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})
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