@Override
protected void encode(ChannelHandlerContext ctx, MessageBuilder msg, ByteBuf out)
throws Exception {
// Generate a new encryption key using ISAAC, encode the message and
// write it to the client.
ByteBuf internal = msg.buffer();
int value = internal.getByte(0) + encryptor.getKey();
internal.setByte(0, value);
out.writeBytes(internal);
}
