[Nyuszy]

how can i send data to the game server, for example the mac address? i know that i need a client-side program, but i don't know how can that program send something to the server...

[Exolent[jNr]]

An easy way would be to make the program set the mac address in the player's setinfo string, then have the server retrieve the player's setinfo string.

[Nyuszy]

but he can change it...

[Exolent[jNr]]

You would only need to do it when player connects.

[Nyuszy]

is there any other method?

[Nyuszy]

bump

[wrecked_]

Originally Posted by Nyuszy is there any other method?

Why do you need another method?

The one provided gets the job done simply. It is an instantaneous thing.

• Client-side program sets the setinfo string with your data
• Plugin retrieves the setinfo string
• Set the string back to what it was before the client-side program changed it

This would all happen in the blink of an eye. The client wouldn't be able to change it anywhere in between the steps above.

[ARES[ro]]

It may verry well be one of the only methods along side with changing the name string or the password string.

I say this because the client-server protocol is a real asshole, it takes some tickets from actual steam servers and then encrypts it using some weird asymetric encryption method called RSA

[SnoW]

Originally Posted by ARES[ro] I say this because the client-server protocol is a real asshole, it takes some tickets from actual steam servers and then encrypts it using some weird asymetric encryption method called RSA

What is exactly weird with RSA? It is probably one of the most simple cryptography algorithms.

Originally Posted by wrecked_ The client wouldn't be able to change it anywhere in between the steps above.

No one would try to change it with hands, better to modify the client side program.

[ARES[ro]]

Originally Posted by SnoW What is exactly weird with RSA? It is probably one of the most simple cryptography algorithms.

It means you cant edit the outgoing packets with your program, you need to edit the memory. (its weird because it uses ticketing system changing all the time with steam servers)