From 30b5380ce3c20e6f778d96b3a248a8a4f9e363b0 Mon Sep 17 00:00:00 2001
From: Feross Aboukhadijeh <feross@feross.org>
Date: Wed, 2 Jul 2014 15:23:48 -0700
Subject: [PATCH] remove rusha dep

---
 index.js     | 10 ++++++----
 package.json |  4 ++--
 2 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/index.js b/index.js
index 9c2e6da..d66d7e4 100644
--- a/index.js
+++ b/index.js
@@ -1,14 +1,16 @@
-var BitField = require('bitfield')
 var bencode = require('bencode')
+var BitField = require('bitfield')
+var bufferEqual = require('buffer-equal')
+var crypto = require('crypto')
 var EventEmitter = require('events').EventEmitter
 var inherits = require('inherits')
-var Rusha = require('rusha-browserify') // Fast SHA1 (works in browser)
 
 var BITFIELD_GROW = 1000
 var PIECE_LENGTH = 16 * 1024
 
+// Return sha1 hash **as a buffer**
 function sha1 (buf) {
-  return (new Rusha()).digestFromBuffer(buf)
+  return crypto.createHash('sha1').update(buf).digest()
 }
 
 module.exports = function (metadata) {
@@ -124,7 +126,7 @@ module.exports = function (metadata) {
     } catch (err) {}
 
     // check hash
-    if (this._infoHash && this._infoHash.toString('hex') !== sha1(metadata)) {
+    if (this._infoHash && !bufferEqual(this._infoHash, sha1(metadata))) {
       return false
     }
 
diff --git a/package.json b/package.json
index bab05a8..4934a9e 100644
--- a/package.json
+++ b/package.json
@@ -13,8 +13,8 @@
   "dependencies": {
     "bencode": "^0.6.0",
     "bitfield": "^1.0.1",
-    "inherits": "^2.0.1",
-    "rusha-browserify": "^0.7.3"
+    "buffer-equal": "0.0.1",
+    "inherits": "^2.0.1"
   },
   "devDependencies": {
     "bittorrent-protocol": "^1.0.0",