code: function Server(transport, keyFilePath, crtFilePath) {
  	X224.call(this, transport);
  	this.keyFilePath = keyFilePath;
  	this.crtFilePath = crtFilePath;
  	var self = this;
  	this.transport.once('data', function (s) {
  		self.recvConnectionRequest(s);
  	});
  }
docs: Server x224 automata