From 97f25f29f5857df5367fee49bafd73a0eddb90e4 Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Sat, 16 Jul 2016 14:32:06 -0700
Subject: [PATCH] use supersha.

---
 lib/bcoin/utils.js | 63 ++++++++++++++++++----------------------------
 package.json       |  7 +++---
 2 files changed, 29 insertions(+), 41 deletions(-)

diff --git a/lib/bcoin/utils.js b/lib/bcoin/utils.js
index 3e0a0146..0f2f3f7b 100644
--- a/lib/bcoin/utils.js
+++ b/lib/bcoin/utils.js
@@ -241,92 +241,79 @@ utils.isBase58 = function isBase58(obj) {
 /**
  * Hash with chosen algorithm.
  * @param {String} alg
- * @param {Buffer|String} data
- * @param {String?} enc - Any buffer-supported encoding.
+ * @param {Buffer} data
  * @returns {Buffer}
  */
 
-utils.hash = function _hash(alg, data, enc) {
+utils.hash = function _hash(alg, data) {
   if (!crypto)
-    return new Buffer(hash[alg]().update(data, enc).digest());
+    return new Buffer(hash[alg]().update(data).digest());
 
-  return crypto.createHash(alg).update(data, enc).digest();
+  return crypto.createHash(alg).update(data).digest();
 };
 
 /**
  * Hash with ripemd160.
- * @param {Buffer|String} data
- * @param {String?} enc - Any buffer-supported encoding.
+ * @param {Buffer} data
  * @returns {Buffer}
  */
 
-utils.ripemd160 = function ripemd160(data, enc) {
-  return utils.hash('ripemd160', data, enc);
+utils.ripemd160 = function ripemd160(data) {
+  return utils.hash('ripemd160', data);
 };
 
 /**
  * Hash with sha1.
- * @param {Buffer|String} data
- * @param {String?} enc - Any buffer-supported encoding.
+ * @param {Buffer} data
  * @returns {Buffer}
  */
 
-utils.sha1 = function sha1(data, enc) {
-  return utils.hash('sha1', data, enc);
+utils.sha1 = function sha1(data) {
+  return utils.hash('sha1', data);
 };
 
 /**
  * Hash with sha256.
- * @param {Buffer|String} data
- * @param {String?} enc - Any buffer-supported encoding.
+ * @param {Buffer} data
  * @returns {Buffer}
  */
 
-utils.sha256 = function sha256(data, enc) {
-  if (supersha) {
-    if (typeof data === 'string')
-      data = new Buffer(data, enc);
+utils.sha256 = function sha256(data) {
+  if (supersha)
     return supersha.sha256(data);
-  }
-  return utils.hash('sha256', data, enc);
+  return utils.hash('sha256', data);
 };
 
 /**
  * Hash with sha256 and ripemd160 (OP_HASH160).
- * @param {Buffer|String} data
- * @param {String?} enc - Any buffer-supported encoding.
+ * @param {Buffer} data
  * @returns {Buffer}
  */
 
-utils.hash160 = function hash160(data, enc) {
-  return utils.ripemd160(utils.sha256(data, enc));
+utils.hash160 = function hash160(data) {
+  return utils.ripemd160(utils.sha256(data));
 };
 
 /**
  * Hash with sha256 twice (OP_HASH256).
- * @param {Buffer|String} data
- * @param {String?} enc - Any buffer-supported encoding.
+ * @param {Buffer} data
  * @returns {Buffer}
  */
 
-utils.hash256 = function hash256(data, enc) {
-  if (supersha) {
-    if (typeof data === 'string')
-      data = new Buffer(data, enc);
-    return supersha.dsha256(data);
-  }
-  return utils.sha256(utils.sha256(data, enc));
+utils.hash256 = function hash256(data) {
+  if (supersha)
+    return supersha.hash256(data);
+  return utils.sha256(utils.sha256(data));
 };
 
 /**
  * Create a sha256 checksum (common in bitcoin).
- * @param {Buffer|String} data
- * @param {String?} enc - Any buffer-supported encoding.
+ * @param {Buffer} data
  * @returns {Buffer}
  */
 
-utils.checksum = function checksum(data, enc) {
-  return utils.hash256(data, enc).slice(0, 4);
+utils.checksum = function checksum(data) {
+  return utils.hash256(data).slice(0, 4);
 };
 
 /**
diff --git a/package.json b/package.json
index d4a9746e..490c818e 100644
--- a/package.json
+++ b/package.json
@@ -24,9 +24,9 @@
   ],
   "license": "MIT",
   "bugs": {
-    "url": "https://github.com/indutny/bcoin/issues"
+    "url": "https://github.com/bcoin-org/bcoin/issues"
   },
-  "homepage": "https://github.com/indutny/bcoin",
+  "homepage": "https://github.com/bcoin-org/bcoin",
   "engines": {
     "node": ">= 0.10.0"
   },
@@ -38,7 +38,8 @@
     "leveldown": "git://github.com/chjj/leveldown.git#staging",
     "secp256k1": "3.1.0",
     "socket.io": "1.4.8",
-    "socket.io-client": "1.4.8"
+    "socket.io-client": "1.4.8",
+    "supersha": "0.0.1"
   },
   "devDependencies": {
     "browserify": "13.0.1",