code: function(len) {
                      if(len === undefined) len=16;
  
                      var entropy = fs.randomBytes(len);
                      var result = 0;
  
                      for(var i=0; i<len; i++) {
                          result = result + Number(entropy[i])/Math.pow(256,(i+1));
                      }
                      return result
                  }
docs: This is the core function for generating entropy
  
  @param len number of bytes of entropy to create
  @returns {number} A pseduo random number between 0 and 1