diff --git a/src/hdwallet.js b/src/hdwallet.js
new file mode 100644
index 0000000..00a02c0
--- /dev/null
+++ b/src/hdwallet.js
@@ -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
diff --git a/test/hdwallet.js b/test/hdwallet.js
new file mode 100644
index 0000000..974c06e
--- /dev/null
+++ b/test/hdwallet.js
@@ -0,0 +1,217 @@
+/* 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')
+        })
+    })
+})