		@@ -33,6 +33,5 @@ var rng = require('./rng')
		return ['sha1', 'sha256', 'sha512', 'md5', 'rmd160']

		}

		var p = require('./pbkdf2')(exports.createHmac)
		var p = require('./pbkdf2')(exports)
		exports.pbkdf2 = p.pbkdf2
		@@ -39,0 +38,0 @@ exports.pbkdf2Sync = p.pbkdf2Sync

package.json

		@@ -5,3 +5,3 @@ {
		"description": "partial implementation of crypto for the browser",
		"version": "3.2.0",
		"version": "3.2.1",
		"homepage": "https://github.com/dominictarr/crypto-browserify",
		@@ -19,2 +19,3 @@ "repository": {
		"dependencies": {
		"pbkdf2-compat": "2.0.0",
		"ripemd160": "0.2.0",
		@@ -21,0 +22,0 @@ "sha.js": "2.2.6"

pbkdf2.js

		@@ -1,82 +0,12 @@
		// JavaScript PBKDF2 Implementation
		// Based on http://git.io/qsv2zw
		// Licensed under LGPL v3
		// Copyright (c) 2013 jduncanator
		var pbkdf2Export = require('pbkdf2-compat').__pbkdf2Export

		var blocksize = 64
		var zeroBuffer = new Buffer(blocksize); zeroBuffer.fill(0)

		module.exports = function (createHmac, exports) {
		module.exports = function (crypto, exports) {
		exports = exports \|\| {}

		exports.pbkdf2 = function(password, salt, iterations, keylen, cb) {
		if('function' !== typeof cb)
		throw new Error('No callback provided to pbkdf2');
		setTimeout(function () {
		cb(null, exports.pbkdf2Sync(password, salt, iterations, keylen))
		})
		}
		var exported = pbkdf2Export(crypto)

		exports.pbkdf2Sync = function(key, salt, iterations, keylen) {
		if('number' !== typeof iterations)
		throw new TypeError('Iterations not a number')
		if(iterations < 0)
		throw new TypeError('Bad iterations')
		if('number' !== typeof keylen)
		throw new TypeError('Key length not a number')
		if(keylen < 0)
		throw new TypeError('Bad key length')
		exports.pbkdf2 = exported.pbkdf2
		exports.pbkdf2Sync = exported.pbkdf2Sync

		//stretch key to the correct length that hmac wants it,
		//otherwise this will happen every time hmac is called
		//twice per iteration.
		var key = !Buffer.isBuffer(key) ? new Buffer(key) : key

		if(key.length > blocksize) {
		key = createHash(alg).update(key).digest()
		} else if(key.length < blocksize) {
		key = Buffer.concat([key, zeroBuffer], blocksize)
		}

		var HMAC;
		var cplen, p = 0, i = 1, itmp = new Buffer(4), digtmp;
		var out = new Buffer(keylen);
		out.fill(0);
		while(keylen) {
		if(keylen > 20)
		cplen = 20;
		else
		cplen = keylen;

		/* We are unlikely to ever use more than 256 blocks (5120 bits!)
		* but just in case...
		*/
		itmp[0] = (i >> 24) & 0xff;
		itmp[1] = (i >> 16) & 0xff;
		itmp[2] = (i >> 8) & 0xff;
		itmp[3] = i & 0xff;

		HMAC = createHmac('sha1', key);
		HMAC.update(salt)
		HMAC.update(itmp);
		digtmp = HMAC.digest();
		digtmp.copy(out, p, 0, cplen);

		for(var j = 1; j < iterations; j++) {
		HMAC = createHmac('sha1', key);
		HMAC.update(digtmp);
		digtmp = HMAC.digest();
		for(var k = 0; k < cplen; k++) {
		out[k] ^= digtmp[k];
		}
		}
		keylen -= cplen;
		i++;
		p += cplen;
		}

		return out;
		}

		return exports
		}

crypto-browserify - npm Package Compare versions

Worsened metrics

Dependency changes