bitcoinjs-lib/test/hdnode.js

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/* global describe, it, beforeEach */
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/* eslint-disable no-new */
var assert = require('assert')
var networks = require('../src/networks')
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var sinon = require('sinon')
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var BigInteger = require('bigi')
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var ECPair = require('../src/ecpair')
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var HDNode = require('../src/hdnode')
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var fixtures = require('./fixtures/hdnode.json')
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describe('HDNode', function () {
describe('Constructor', function () {
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var keyPair, chainCode
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beforeEach(function () {
var d = BigInteger.ONE
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keyPair = new ECPair(d, null)
chainCode = new Buffer(32)
chainCode.fill(1)
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})
it('stores the keyPair/chainCode directly', function () {
var hd = new HDNode(keyPair, chainCode)
assert.strictEqual(hd.keyPair, keyPair)
assert.strictEqual(hd.chainCode, chainCode)
})
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it('has a default depth/index of 0', function () {
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var hd = new HDNode(keyPair, chainCode)
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assert.strictEqual(hd.depth, 0)
assert.strictEqual(hd.index, 0)
})
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it('throws on uncompressed keyPair', function () {
keyPair.compressed = false
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assert.throws(function () {
new HDNode(keyPair, chainCode)
}, /BIP32 only allows compressed keyPairs/)
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})
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it('throws when an invalid length chain code is given', function () {
assert.throws(function () {
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new HDNode(keyPair, chainCode.slice(0, 20))
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}, /Expected chainCode length of 32, got 20/)
})
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it('throws when an unknown network is given', function () {
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keyPair.network = {}
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assert.throws(function () {
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new HDNode(keyPair, chainCode)
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}, /Unknown BIP32 constants for network/)
})
})
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describe('fromSeed*', function () {
fixtures.valid.forEach(function (f) {
it('calculates privKey and chainCode for ' + f.master.fingerprint, function () {
var network = networks[f.network]
var hd = HDNode.fromSeedHex(f.master.seed, network)
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assert.strictEqual(hd.keyPair.toWIF(), f.master.wif)
assert.strictEqual(hd.chainCode.toString('hex'), f.master.chainCode)
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})
})
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it('throws on low entropy seed', function () {
assert.throws(function () {
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HDNode.fromSeedHex('ffffffffff')
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}, /Seed should be at least 128 bits/)
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})
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it('throws on too high entropy seed', function () {
assert.throws(function () {
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HDNode.fromSeedHex('ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff')
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}, /Seed should be at most 512 bits/)
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})
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})
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describe('toBase58', function () {
fixtures.valid.forEach(function (f) {
it('exports ' + f.master.base58 + ' (public) correctly', function () {
var network = networks[f.network]
var hd = HDNode.fromSeedHex(f.master.seed, network).neutered()
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assert.strictEqual(hd.toBase58(), f.master.base58)
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})
})
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fixtures.valid.forEach(function (f) {
it('exports ' + f.master.base58Priv + ' (private) correctly', function () {
var network = networks[f.network]
var hd = HDNode.fromSeedHex(f.master.seed, network)
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assert.strictEqual(hd.toBase58(), f.master.base58Priv)
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})
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})
})
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describe('fromBase58', function () {
fixtures.valid.forEach(function (f) {
it('imports ' + f.master.base58 + ' (public) correctly', function () {
var network = networks[f.network]
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var hd = HDNode.fromBase58(f.master.base58)
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assert.strictEqual(hd.toBase58(), f.master.base58)
assert.strictEqual(hd.keyPair.network, network)
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})
})
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fixtures.valid.forEach(function (f) {
it('imports ' + f.master.base58Priv + ' (private) correctly', function () {
var network = networks[f.network]
var hd = HDNode.fromBase58(f.master.base58Priv, network)
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assert.strictEqual(hd.toBase58(), f.master.base58Priv)
assert.strictEqual(hd.keyPair.network, network)
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})
})
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fixtures.invalid.fromBase58.forEach(function (f) {
it('throws on ' + f.string, function () {
assert.throws(function () {
var network = networks[f.network]
HDNode.fromBase58(f.string, network)
}, new RegExp(f.exception))
})
})
})
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describe('getIdentifier', function () {
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var f = fixtures.valid[0]
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it('returns the identifier for ' + f.master.fingerprint, function () {
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var hd = HDNode.fromBase58(f.master.base58)
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assert.strictEqual(hd.getIdentifier().toString('hex'), f.master.identifier)
})
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})
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describe('getFingerprint', function () {
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var f = fixtures.valid[0]
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it('returns the fingerprint for ' + f.master.fingerprint, function () {
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var hd = HDNode.fromBase58(f.master.base58)
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assert.strictEqual(hd.getFingerprint().toString('hex'), f.master.fingerprint)
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})
})
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describe('getAddress', function () {
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var hd
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beforeEach(function () {
var f = fixtures.valid[0]
hd = HDNode.fromBase58(f.master.base58)
})
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it('wraps ECPair.getAddress', sinon.test(function () {
this.mock(hd.keyPair).expects('getAddress')
.once().returns('foobar')
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assert.strictEqual(hd.getAddress(), 'foobar')
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}))
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})
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describe('neutered', function () {
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var f = fixtures.valid[0]
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it('strips all private information', function () {
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var hd = HDNode.fromBase58(f.master.base58)
var hdn = hd.neutered()
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assert.strictEqual(hdn.keyPair.d, undefined)
assert.strictEqual(hdn.keyPair.Q, hd.keyPair.Q)
assert.strictEqual(hdn.chainCode, hd.chainCode)
assert.strictEqual(hdn.depth, hd.depth)
assert.strictEqual(hdn.index, hd.index)
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})
})
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describe('derive', function () {
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function verifyVector (hd, v, depth) {
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assert.strictEqual(hd.keyPair.toWIF(), v.wif)
assert.strictEqual(hd.keyPair.getPublicKeyBuffer().toString('hex'), v.pubKey)
assert.strictEqual(hd.chainCode.toString('hex'), v.chainCode)
assert.strictEqual(hd.depth, depth || 0)
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if (v.hardened) {
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assert.strictEqual(hd.index, v.m + HDNode.HIGHEST_BIT)
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} else {
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assert.strictEqual(hd.index, v.m)
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}
}
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fixtures.valid.forEach(function (f) {
var network = networks[f.network]
var hd = HDNode.fromSeedHex(f.master.seed, network)
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// FIXME: test data is only testing Private -> private for now
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f.children.forEach(function (c, i) {
it(c.description + ' from ' + f.master.fingerprint, function () {
if (c.hardened) {
hd = hd.deriveHardened(c.m)
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} else {
hd = hd.derive(c.m)
}
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verifyVector(hd, c, i + 1)
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})
})
})
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it('works for Private -> public (neutered)', function () {
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var f = fixtures.valid[1]
var c = f.children[0]
var master = HDNode.fromBase58(f.master.base58Priv)
var child = master.derive(c.m).neutered()
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assert.strictEqual(child.toBase58(), c.base58)
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})
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it('works for Private -> public (neutered, hardened)', function () {
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var f = fixtures.valid[0]
var c = f.children[0]
var master = HDNode.fromBase58(f.master.base58Priv)
var child = master.deriveHardened(c.m).neutered()
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assert.strictEqual(child.toBase58(), c.base58)
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})
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it('works for Public -> public', function () {
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var f = fixtures.valid[1]
var c = f.children[0]
var master = HDNode.fromBase58(f.master.base58)
var child = master.derive(c.m)
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assert.strictEqual(child.toBase58(), c.base58)
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})
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it('throws on Public -> public (hardened)', function () {
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var f = fixtures.valid[0]
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var c = f.children[0]
var master = HDNode.fromBase58(f.master.base58)
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assert.throws(function () {
master.deriveHardened(c.m)
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}, /Could not derive hardened child key/)
})
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})
})