added browser support for bitauth

.gitignore

@@ -1 +1,3 @@
 node_modules
+dist/bitauth.browser.js
+dist/bitauth.browser.min.js

dist/README.md

@@ -0,0 +1,11 @@
+# BitAuth Browser Bundle
+
+To build a browser compatible version of BitAuth, run the following command from
+the project's root directory:
+
+```
+npm run make-dist
+```
+
+This will output `bitauth.browser.js` to this directory. The script introduces a
+global variable at `window.bitauth`.

index.js

@@ -0,0 +1,9 @@
+// get base functionality
+var bitauth = require('./lib/bitauth');
+
+// add node-specific encrypt/decrypt
+bitauth.encrypt = require('./lib/encrypt');
+bitauth.decrypt = require('./lib/decrypt');
+
+
+module.exports = bitauth;

lib/bitauth.js

@@ -1,26 +1,25 @@
-var base58 = require('base58-native');
 var crypto   = require('crypto');
 var bitcore  = require('bitcore');
 var Key      = bitcore.Key;
 var SIN      = bitcore.SIN;
 var SINKey   = bitcore.SINKey
-var coinUtil = bitcore.util;
+var util     = bitcore.util;
 
-var BitAuth = function() {};
+var BitAuth  = {};
 
 BitAuth.generateSin = function() {
   var sk = new SINKey();
   sk.generate();
-  var obj = sk.storeObj();
-
-  return obj;
+  return sk.storeObj();
 };
 
 BitAuth.getPublicKeyFromPrivateKey = function(privkey) {
   try {
     var key = new Key();
+
     key.private = new Buffer(privkey, 'hex');
     key.regenerateSync();
+
     return key.public.toString('hex');
   } catch (err) {
     console.log(err);
@@ -29,13 +28,13 @@ BitAuth.getPublicKeyFromPrivateKey = function(privkey) {
 };
 
 BitAuth.getSinFromPublicKey = function(pubkey) {
-  var pubkeyHash = coinUtil.sha256ripe160(new Buffer(pubkey, 'hex'));
+  var pubkeyHash = util.sha256ripe160(new Buffer(pubkey, 'hex'));
   var sin = new SIN(SIN.SIN_EPHEM, pubkeyHash);
   return sin.toString();
 }
 
 BitAuth.sign = function(data, privkey) {
-  var hash = coinUtil.sha256(data);
+  var hash = util.sha256(data);
 
   try {
     var key = new Key();
@@ -49,7 +48,7 @@ BitAuth.sign = function(data, privkey) {
 };
 
 BitAuth.verifySignature = function(data, pubkey, signature, callback) {
-  var hash = coinUtil.sha256(data);
+  var hash = util.sha256(data);
 
   try {
     var key = new Key();
@@ -60,24 +59,4 @@ BitAuth.verifySignature = function(data, pubkey, signature, callback) {
   }
 };
 
-BitAuth.encrypt = function(password, str) {
-  var aes256 = crypto.createCipher('aes-256-cbc', password);
-  var a = aes256.update(str, 'utf8');
-  var b = aes256.final();
-  var buf = new Buffer(a.length + b.length);
-  a.copy(buf, 0);
-  b.copy(buf, a.length);
-  return base58.encode(buf);
-};
-
-BitAuth.decrypt = function(password, str) {
-  var aes256 = crypto.createDecipher('aes-256-cbc', password);
-  var a = aes256.update(base58.decode(str));
-  var b = aes256.final();
-  var buf = new Buffer(a.length + b.length);
-  a.copy(buf, 0);
-  b.copy(buf, a.length);
-  return buf.toString('utf8');
-};
-
 module.exports = BitAuth;

lib/decrypt.js

@@ -0,0 +1,14 @@
+var base58 = require('base58-native');
+var crypto = require('crypto');
+
+module.exports = function decrypt(password, str) {
+  var aes256 = crypto.createDecipher('aes-256-cbc', password);
+  var a      = aes256.update(base58.decode(str));
+  var b      = aes256.final();
+  var buf    = new Buffer(a.length + b.length);
+
+  a.copy(buf, 0);
+  b.copy(buf, a.length);
+
+  return buf.toString('utf8');
+};

lib/encrypt.js

@@ -0,0 +1,14 @@
+var base58 = require('base58-native');
+var crypto = require('crypto');
+
+module.exports = function encrypt(password, str) {
+  var aes256 = crypto.createCipher('aes-256-cbc', password);
+  var a      = aes256.update(str, 'utf8');
+  var b      = aes256.final();
+  var buf    = new Buffer(a.length + b.length);
+
+  a.copy(buf, 0);
+  b.copy(buf, a.length);
+  
+  return base58.encode(buf);
+};

package.json

@@ -5,12 +5,27 @@
     "name": "Patrick Nagurny",
     "email": "patrick@bitpay.com"
   },
-  "version": "0.1.0",
+  "contributors": [
+    {
+      "name": "Gordon Hall",
+      "email": "gordon@bitpay.com"
+    }
+  ],
+  "scripts": {
+    "make-dist": "sh scripts/make-dist.sh",
+    "postinstall": "npm run make-dist"
+  },
+  "main": "index.js",
+  "version": "0.1.1",
   "dependencies": {
     "bitcore": ">= 0.1.9",
     "request": "^2.36.0",
     "express": "^4.3.1",
     "base58-native": "^0.1.4",
     "body-parser": "^1.2.0"
+  },
+  "devDependencies": {
+    "uglify-js": "~2.4.14",
+    "browserify": "~4.1.11"
   }
 }

scripts/make-dist.sh

@@ -0,0 +1,11 @@
+cd node_modules/bitcore
+echo "Building browser bundle for bitcore..."
+node browser/build -s lib/Key,lib/SINKey,lib/SIN,util/util
+echo "Building browser bundle for bitauth..."
+cd ../../
+node_modules/.bin/browserify lib/bitauth.js -s bitauth -x buffertools -i bitcore -o dist/bitauth.browser.js
+echo "Compiling bitcore and bitauth..."
+node_modules/.bin/uglifyjs node_modules/bitcore/browser/bundle.js dist/bitauth.browser.js -b -o dist/bitauth.browser.js
+echo "Minifying bundle..."
+node_modules/.bin/uglifyjs dist/bitauth.browser.js -o dist/bitauth.browser.min.js
+echo "Done!"