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Merge pull request #20 from weilu/packdirect

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Use browserify packages directly
This commit is contained in:
Wei Lu 2015-04-08 10:32:17 +08:00
commit 0152f89ea5
3 changed files with 29 additions and 17 deletions
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14
index.js
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@ -1,12 +1,16 @@
var assert = require('assert') var assert = require('assert')
var crypto = require('crypto') var createHash = require('create-hash')
var pbkdf2 = require('pbkdf2-compat').pbkdf2Sync var pbkdf2 = require('pbkdf2').pbkdf2Sync
var randomBytes = require('randombytes')
var unorm = require('unorm') var unorm = require('unorm')
var DEFAULT_WORDLIST = require('./wordlists/en.json') var DEFAULT_WORDLIST = require('./wordlists/en.json')
function mnemonicToSeed(mnemonic, password) { function mnemonicToSeed(mnemonic, password) {
return pbkdf2(mnemonic, salt(password), 2048, 64, 'sha512') var mnemonicBuffer = new Buffer(mnemonic, 'utf8')
var saltBuffer = new Buffer(salt(password), 'utf8')
return pbkdf2(mnemonicBuffer, saltBuffer, 2048, 64, 'sha512')
} }
function mnemonicToSeedHex(mnemonic, password) { function mnemonicToSeedHex(mnemonic, password) {
@ -69,7 +73,7 @@ function entropyToMnemonic(entropy, wordlist) {
function generateMnemonic(strength, rng, wordlist) { function generateMnemonic(strength, rng, wordlist) {
strength = strength || 128 strength = strength || 128
rng = rng || crypto.randomBytes rng = rng || randomBytes
var hex = rng(strength / 8).toString('hex') var hex = rng(strength / 8).toString('hex')
return entropyToMnemonic(hex, wordlist) return entropyToMnemonic(hex, wordlist)
@ -86,7 +90,7 @@ function validateMnemonic(mnemonic, wordlist) {
} }
function checksumBits(entropyBuffer) { function checksumBits(entropyBuffer) {
var hash = crypto.createHash('sha256').update(entropyBuffer).digest() var hash = createHash('sha256').update(entropyBuffer).digest()
// Calculated constants from BIP39 // Calculated constants from BIP39
var ENT = entropyBuffer.length * 8 var ENT = entropyBuffer.length * 8

10
package.json
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@ -21,12 +21,14 @@
}, },
"license": "ISC", "license": "ISC",
"dependencies": { "dependencies": {
"pbkdf2-compat": "^2.0.1", "create-hash": "^1.1.0",
"pbkdf2": "^3.0.0",
"randombytes": "^2.0.1",
"unorm": "^1.3.3" "unorm": "^1.3.3"
}, },
"devDependencies": { "devDependencies": {
"browserify": "^8.0.3", "browserify": "^9.0.0",
"mocha": "^2.1.0", "mocha": "^2.2.0",
"sinon": "^1.12.2" "mock-require": "^1.0.5"
} }
} }

22
test/index.js
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@ -1,7 +1,11 @@
var assert = require('assert') var assert = require('assert')
var crypto = require('crypto') var mock = require('mock-require')
mock('randombytes', function(size) {
return new Buffer('qwertyuiopasdfghjklzxcvbnm[];,./'.slice(0, size))
})
var BIP39 = require('../index.js') var BIP39 = require('../index.js')
var sinon = require('sinon')
var wordlists = { var wordlists = {
english: require('../wordlists/en.json'), english: require('../wordlists/en.json'),
@ -51,13 +55,11 @@ describe('BIP39', function() {
describe('generateMnemonic', function() { describe('generateMnemonic', function() {
vectors.english.forEach(function(v, i) { vectors.english.forEach(function(v, i) {
it('works for tests vector ' + i, sinon.test(function() { it('works for tests vector ' + i, function() {
this.mock(crypto).expects('randomBytes') function rng() { return new Buffer(v[0], 'hex') }
.exactly(1)
.onCall(0).returns(new Buffer(v[0], 'hex'))
assert.equal(BIP39.generateMnemonic(), v[1]) assert.equal(BIP39.generateMnemonic(undefined, rng), v[1])
})) })
}) })
it('can vary generated entropy bit length', function() { it('can vary generated entropy bit length', function() {
@ -67,6 +69,10 @@ describe('BIP39', function() {
assert.equal(words.length, 9) assert.equal(words.length, 9)
}) })
it('defaults to randombytes for the RNG', function() {
assert.equal(BIP39.generateMnemonic(32), 'imitate robot frequent')
})
it('allows a custom RNG to be used', function() { it('allows a custom RNG to be used', function() {
var rng = function(size) { var rng = function(size) {
var buffer = new Buffer(size) var buffer = new Buffer(size)