Browserify RIPEMD160

package.json

@@ -36,7 +36,7 @@
     "url": "https://github.com/bitcoinjs/bitcoinjs-lib.git"
   },
   "devDependencies": {
-    "browserify": "~4.1.5",
+    "browserify": "4.1.11",
     "coveralls": "~2.10.0",
     "helloblock-js": "^0.2.1",
     "istanbul": "0.1.30",
@@ -68,9 +68,13 @@
     "test": "npm run-script unit",
     "unit": "./node_modules/.bin/istanbul test ./node_modules/.bin/_mocha -- --reporter list `find test -maxdepth 1 -not -type d`"
   },
+  "browser": {
+    "crypto": "crypto-browserify"
+  },
   "dependencies": {
     "bigi": "1.1.0",
     "crypto-js": "3.1.2-3",
+    "crypto-browserify": "2.1.8",
     "ecurve": "0.10.0",
     "secure-random": "0.2.1"
   }

src/crypto.js

@@ -5,18 +5,17 @@ var crypto = require('crypto')
 var convert = require('./convert')
 
 function hash160(buffer) {
-  var step1 = sha256(buffer)
-
-  var step2a = convert.bufferToWordArray(step1)
-  var step2b = CryptoJS.RIPEMD160(step2a)
-
-  return convert.wordArrayToBuffer(step2b)
+  return ripemd160(sha256(buffer))
 }
 
 function hash256(buffer) {
   return sha256(sha256(buffer))
 }
 
+function ripemd160(buffer) {
+  return crypto.createHash('rmd160').update(buffer).digest()
+}
+
 function sha1(buffer) {
   return crypto.createHash('sha1').update(buffer).digest()
 }
@@ -43,6 +42,7 @@ function HmacSHA512(data, secret) {
 }
 
 module.exports = {
+  ripemd160: ripemd160,
   sha1: sha1,
   sha256: sha256,
   hash160: hash160,

test/crypto.js

@@ -8,10 +8,9 @@ describe('Crypto', function() {
     it('matches the test vectors', function() {
       fixtures.before.hex.forEach(function(hex, i) {
         var data = new Buffer(hex, 'hex')
-        var actual = crypto.hash160(data)
-        var expected = fixtures.after.hash160[i]
+        var actual = crypto.hash160(data).toString('hex')
 
-        assert.equal(actual.toString('hex'), expected)
+        assert.equal(actual, fixtures.after.hash160[i])
       })
     })
   })
@@ -20,10 +19,20 @@ describe('Crypto', function() {
     it('matches the test vectors', function() {
       fixtures.before.hex.forEach(function(hex, i) {
         var data = new Buffer(hex, 'hex')
-        var actual = crypto.hash256(data)
-        var expected = fixtures.after.hash256[i]
+        var actual = crypto.hash256(data).toString('hex')
 
-        assert.equal(actual.toString('hex'), expected)
+        assert.equal(actual, fixtures.after.hash256[i])
+      })
+    })
+  })
+
+  describe('RIPEMD160', function() {
+    it('matches the test vectors', function() {
+      fixtures.before.hex.forEach(function(hex, i) {
+        var data = new Buffer(hex, 'hex')
+        var actual = crypto.ripemd160(data).toString('hex')
+
+        assert.equal(actual, fixtures.after.ripemd160[i])
       })
     })
   })
@@ -32,10 +41,9 @@ describe('Crypto', function() {
     it('matches the test vectors', function() {
       fixtures.before.hex.forEach(function(hex, i) {
         var data = new Buffer(hex, 'hex')
-        var actual = crypto.sha1(data)
-        var expected = fixtures.after.sha1[i]
+        var actual = crypto.sha1(data).toString('hex')
 
-        assert.equal(actual.toString('hex'), expected)
+        assert.equal(actual, fixtures.after.sha1[i])
       })
     })
   })
@@ -44,10 +52,9 @@ describe('Crypto', function() {
     it('matches the test vectors', function() {
       fixtures.before.hex.forEach(function(hex, i) {
         var data = new Buffer(hex, 'hex')
-        var actual = crypto.sha256(data)
-        var expected = fixtures.after.sha256[i]
+        var actual = crypto.sha256(data).toString('hex')
 
-        assert.equal(actual.toString('hex'), expected)
+        assert.equal(actual, fixtures.after.sha256[i])
       })
     })
   })
@@ -57,11 +64,9 @@ describe('Crypto', function() {
       fixtures.before.hex.forEach(function(hex, i) {
         var data = new Buffer(hex, 'hex')
         var secret = new Buffer(fixtures.before.secret)
+        var actual = crypto.HmacSHA256(data, secret).toString('hex')
 
-        var actual = crypto.HmacSHA256(data, secret)
-        var expected = fixtures.after.hmacsha256[i]
-
-        assert.equal(actual.toString('hex'), expected)
+        assert.equal(actual, fixtures.after.hmacsha256[i])
       })
     })
   })
@@ -71,11 +76,9 @@ describe('Crypto', function() {
       fixtures.before.hex.forEach(function(hex, i) {
         var data = new Buffer(hex, 'hex')
         var secret = new Buffer(fixtures.before.secret)
+        var actual = crypto.HmacSHA512(data, secret).toString('hex')
 
-        var actual = crypto.HmacSHA512(data, secret)
-        var expected = fixtures.after.hmacsha512[i]
-
-        assert.equal(actual.toString('hex'), expected)
+        assert.equal(actual, fixtures.after.hmacsha512[i])
       })
     })
   })

test/fixtures/crypto.json

@@ -8,7 +8,6 @@
       "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"
     ]
   },
-
   "after": {
     "hash160": [
       "cdb00698f02afd929ffabea308340fa99ac2afa8",
@@ -22,6 +21,12 @@
       "752adad0a7b9ceca853768aebb6965eca126a62965f698a0c1bc43d83db632ad",
       "033588797115feb3545052670cac2a46584ab3cb460de63756ee0275e66b5799"
     ],
+    "ripemd160": [
+      "8d1a05d1bc08870968eb8a81ad4393fd3aac6633",
+      "5825701b4b9767fd35063b286dca3582853e0630",
+      "cb760221600ed34337ca3ab70016b5f58c838120",
+      "cad8593dcdef12ee334c97bab9787f07b3f3a1a5"
+    ],
     "sha1": [
       "cb473678976f425d6ec1339838f11011007ad27d",
       "c0357a32ed1f6a03be92dd094476f7f1a2e214ec",
@@ -47,4 +52,4 @@
       "7dee95aa3c462d3eb7ecb61536cb215e471d1fa73d8643a967905946e26c536588c5058abd5a049a22b987db95a7fb420f3bff12359dc53d03d7ce7df714e029"
     ]
   }
-}
+}