A working javascript implementation CLRAuth for API

gistfile1.txt

GameClient.prototype.buildToken = function (body) { 

  var dt = Math.round(new Date().getTime() * .001) 
  var line = this.identity + "." + dt
  var data = line

  if (body) {
    data = line + "." + body.trim()
  }

  var salt = Math.floor( Math.random() * 10000000000 )
  salt = this.padString(salt.toString(), 10, '.');
  var key = salt + this.secret
  var hash = crypto.createHmac('sha256', key).update(data).digest()
  var hexhash = crypto.createHmac('sha256', key).update(data).digest('hex')
  log.debug("HASH", hexhash)

  var saltBuf = new Buffer(salt.toString(),'ascii')
  var hashBuf = new Buffer(hash)
  var signature = Buffer.concat([saltBuf, hashBuf]);

  var token = "CLRAUTH " + this.identity + " " + URLSafeBase64.encode(signature) + " " + URLSafeBase64.encode(new Buffer(line))

  return token
}