tm.registerMessageHandler(this, 0, 255);
PacketServiceRequest sr = new PacketServiceRequest("ssh-userauth");
tm.sendMessage(sr.getPayload());
PacketUserauthRequestNone urn = new PacketUserauthRequestNone("ssh-connection", user);
tm.sendMessage(urn.getPayload());
byte[] msg = getNextMessage();
new PacketServiceAccept(msg, 0, msg.length);
msg = getNextMessage();