lib: move rand to brorand repo

lib/elliptic.js

@@ -2,7 +2,7 @@ var elliptic = exports;
 
 elliptic.version = require('../package.json').version;
 elliptic.utils = require('./elliptic/utils');
-elliptic.rand = require('./elliptic/rand');
+elliptic.rand = require('brorand');
 elliptic.hmacDRBG = require('./elliptic/hmac-drbg');
 elliptic.curve = require('./elliptic/curve');
 elliptic.curves = require('./elliptic/curves');

lib/elliptic/rand.js

@@ -1,49 +0,0 @@
-var assert = require('assert');
-var elliptic = require('../elliptic');
-
-var r;
-
-module.exports = function rand(len) {
-  if (!r)
-    r = new Rand();
-
-  return r.generate(len);
-};
-
-function Rand() {
-}
-
-Rand.prototype.generate = function generate(len) {
-  return this._rand(len);
-};
-
-if (typeof window === 'object') {
-  if (window.crypto && window.crypto.getRandomValues) {
-    // Modern browsers
-    Rand.prototype._rand = function _rand(n) {
-      var arr = new Uint8Array(n);
-      window.crypto.getRandomValues(arr);
-      return arr;
-    };
-  } else if (window.msCrypto && window.msCrypto.getRandomValues) {
-    // IE
-    Rand.prototype._rand = function _rand(n) {
-      var arr = new Uint8Array(n);
-      window.msCrypto.getRandomValues(arr);
-      return arr;
-    };
-  } else {
-    // Old junk
-    Rand.prototype._rand = function() {
-      throw new Error('Not implemented yet');
-    };
-  }
-} else {
-  // Node.js
-  var crypto;
-  Rand.prototype._rand = function _rand(n) {
-    if (!crypto)
-      crypto = require('cry' + 'pto');
-    return crypto.randomBytes(n);
-  };
-}

package.json

@@ -29,6 +29,7 @@
   },
   "dependencies": {
     "bn.js": "^0.15.0",
+    "brorand": "^1.0.1",
     "hash.js": "^0.2.0",
     "inherits": "^2.0.1"
   }