  _methodFor: function(message) {
    var channel = message.channel;

    if (channel === Channel.HANDSHAKE)   return 'handshake';
    if (channel === Channel.CONNECT)     return 'connect';
    if (channel === Channel.SUBSCRIBE)   return 'subscribe';
    if (channel === Channel.UNSUBSCRIBE) return 'unsubscribe';
    if (channel === Channel.DISCONNECT)  return 'disconnect';

    return null;
  },
When an actor claims to have a given identity, the software does not prove or insufficiently proves that the claim is correct.