code: function EncinitPacket(publicKey, cipher) {
    if (!(this instanceof EncinitPacket))
      return new EncinitPacket(publicKey, cipher);
  
    Packet.call(this);
  
    this.publicKey = publicKey || encoding.ZERO_KEY;
    this.cipher = cipher || 0;
  }
docs: Represents a `encinit` packet.
  @constructor
  @param {Buffer|null} publicKey
  @param {Number|null} cipher
  @property {Buffer} publicKey
  @property {Number} cipher