randbytes/lib/timerandom.js

Get a buffer of random bytes from /dev/urandom file, time or another source

// Generated by CoffeeScript 1.4.0
(function() {
  var TimeBasedRandomGenerator, instance;

  instance = null;

  TimeBasedRandomGenerator = (function() {

    function TimeBasedRandomGenerator() {}

    TimeBasedRandomGenerator.getInstance = function() {
      if (!instance) {
        instance = new TimeBasedRandomGenerator();
      }
      return instance;
    };

    TimeBasedRandomGenerator.prototype.getRandomBytes = function(bytes, callback) {
      var byte, i, random, t, _i;
      t = (new Date).getTime();
      random = '';
      for (i = _i = 1; _i <= bytes; i = _i += 1) {
        byte = t * Math.floor((Math.random() * 1024) + 1) % 255;
        random += String.fromCharCode(byte);
      }
      return callback(new Buffer(random, 'binary'));
    };

    return TimeBasedRandomGenerator;

  })();

  module.exports = TimeBasedRandomGenerator;

}).call(this);