From 07a02ec86b447d0c9a87ddaeafa87487da063fb4 Mon Sep 17 00:00:00 2001
From: Braydon Fuller <braydon@bitpay.com>
Date: Fri, 14 Aug 2015 10:54:16 -0400
Subject: [PATCH 1/3] Fix issue with crypto library browser ripemd160 support.

---
 lib/crypto/hash.js | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/lib/crypto/hash.js b/lib/crypto/hash.js
index 730a798..4a88cc7 100644
--- a/lib/crypto/hash.js
+++ b/lib/crypto/hash.js
@@ -1,6 +1,5 @@
 'use strict';
 
-var hashjs = require('hash.js');
 var sha512 = require('sha512');
 var crypto = require('crypto');
 var BufferUtil = require('../util/buffer');
@@ -29,19 +28,9 @@ Hash.sha256sha256 = function(buf) {
 
 Hash.ripemd160 = function(buf) {
   $.checkArgument(BufferUtil.isBuffer(buf));
-  return crypto.createHash('ripemd160').update(buf).digest();
+  return crypto.createHash('rmd160').update(buf).digest();
 };
 
-// Node.js crypto ripemd160 hashes are not supported in a browser
-// We'll replace with a (slower) version that does.
-if (process.browser) {
-  Hash.ripemd160 = function(buf) {
-    $.checkArgument(BufferUtil.isBuffer(buf));
-    var hash = (new hashjs.ripemd160()).update(buf).digest();
-    return new Buffer(hash);
-  };
-}
-
 Hash.sha256ripemd160 = function(buf) {
   $.checkArgument(BufferUtil.isBuffer(buf));
   return Hash.ripemd160(Hash.sha256(buf));

From 41a4e6e19f8bfd8387fddab2428230f1d39d06f7 Mon Sep 17 00:00:00 2001
From: Braydon Fuller <braydon@bitpay.com>
Date: Tue, 13 Oct 2015 19:53:08 -0400
Subject: [PATCH 2/3] Update for crypto-browserify.

---
 lib/crypto/hash.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/crypto/hash.js b/lib/crypto/hash.js
index 4a88cc7..2b098b7 100644
--- a/lib/crypto/hash.js
+++ b/lib/crypto/hash.js
@@ -28,7 +28,7 @@ Hash.sha256sha256 = function(buf) {
 
 Hash.ripemd160 = function(buf) {
   $.checkArgument(BufferUtil.isBuffer(buf));
-  return crypto.createHash('rmd160').update(buf).digest();
+  return crypto.createHash('ripemd160').update(buf).digest();
 };
 
 Hash.sha256ripemd160 = function(buf) {

From 59d2d5cf00f38ae03298a2460668d778dce27089 Mon Sep 17 00:00:00 2001
From: Braydon Fuller <braydon@bitpay.com>
Date: Tue, 13 Oct 2015 20:51:04 -0400
Subject: [PATCH 3/3] Hash.js dependency is only needed by elliptic.

---
 npm-shrinkwrap.json | 10 +++++-----
 package.json        |  1 -
 2 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/npm-shrinkwrap.json b/npm-shrinkwrap.json
index a94fb99..ed38afe 100644
--- a/npm-shrinkwrap.json
+++ b/npm-shrinkwrap.json
@@ -26,14 +26,14 @@
           "version": "1.0.5",
           "from": "brorand@^1.0.1",
           "resolved": "https://registry.npmjs.org/brorand/-/brorand-1.0.5.tgz"
+        },
+        "hash.js": {
+          "version": "1.0.3",
+          "from": "hash.js@=1.0.3",
+          "resolved": "https://registry.npmjs.org/hash.js/-/hash.js-1.0.3.tgz"
         }
       }
     },
-    "hash.js": {
-      "version": "1.0.2",
-      "from": "hash.js@^1.0.0",
-      "resolved": "https://registry.npmjs.org/hash.js/-/hash.js-1.0.2.tgz"
-    },
     "inherits": {
       "version": "2.0.1",
       "from": "inherits@=2.0.1",
diff --git a/package.json b/package.json
index 3203460..3dd0edd 100644
--- a/package.json
+++ b/package.json
@@ -84,7 +84,6 @@
     "bs58": "=2.0.0",
     "buffer-compare": "=1.0.0",
     "elliptic": "=3.0.3",
-    "hash.js": "=1.0.2",
     "inherits": "=2.0.1",
     "lodash": "=3.10.1",
     "sha512": "=0.0.1"