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crypto: HMACSHA512 into crypto and add tests

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This commit is contained in:
Daniel Cousens 2014-05-10 09:55:55 +10:00
parent f70ccc9215
commit 276a339d60
4 changed files with 42 additions and 17 deletions

17
src/crypto.js
View file

@ -1,4 +1,5 @@
// Crypto, crypto, where art thou crypto
var assert = require('assert')
var CryptoJS = require('crypto-js')
var crypto = require('crypto')
var convert = require('./convert')
@ -32,9 +33,23 @@ function sha256(buffer) {
return crypto.createHash('sha256').update(buffer).digest()
}
// FIXME: Name not consistent with others
function HmacSHA512(data, secret) {
assert(Buffer.isBuffer(data), 'Expected Buffer for data, got ' + data)
assert(Buffer.isBuffer(secret), 'Expected Buffer for secret, got ' + secret)
var dataWords = convert.bytesToWordArray(data)
var secretWords = convert.bytesToWordArray(secret)
var hash = CryptoJS.HmacSHA512(dataWords, secretWords)
return new Buffer(convert.wordArrayToBytes(hash))
}
module.exports = {
sha1: sha1,
sha256: sha256,
hash160: hash160,
hash256: hash256
hash256: hash256,
HmacSHA512: HmacSHA512
}

17
src/hdwallet.js
View file

@ -4,7 +4,6 @@ var convert = require('./convert')
var Address = require('./address')
var BigInteger = require('bigi')
var CJS = require('crypto-js')
var crypto = require('./crypto')
var ECKey = require('./eckey').ECKey
var ECPubKey = require('./eckey').ECPubKey
@ -13,18 +12,6 @@ var networks = require('./networks')
var sec = require('./sec')
var ecparams = sec("secp256k1")
function HmacSHA512(data, secret) {
assert(Buffer.isBuffer(data))
assert(Buffer.isBuffer(secret))
var dataWords = convert.bytesToWordArray(data)
var secretWords = convert.bytesToWordArray(secret)
var hash = CJS.HmacSHA512(dataWords, secretWords)
return new Buffer(convert.wordArrayToBytes(hash))
}
function HDWallet(seed, networkString) {
if (seed == undefined) return; // FIXME: Boo, should be stricter
@ -34,7 +21,7 @@ function HDWallet(seed, networkString) {
throw new Error("Unknown network: " + this.network)
}
var I = HmacSHA512(seed, HDWallet.MASTER_SECRET)
var I = crypto.HmacSHA512(seed, HDWallet.MASTER_SECRET)
var IL = I.slice(0, 32)
var IR = I.slice(32)
@ -217,7 +204,7 @@ HDWallet.prototype.derive = function(index) {
])
}
var I = HmacSHA512(data, this.chaincode)
var I = crypto.HmacSHA512(data, this.chaincode)
var IL = I.slice(0, 32)
var IR = I.slice(32)