metin2 packet func

Hello guys!
I'm trying to make a prog for sending packets.
First thing i thought to do was find a crypt function.
I have found interesting routine:
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But i can't figure what parameters ECX and EAX are for.

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EDI seems to be a packet size.

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ECX seems to be a pointer to a const value, it doesn't change when i send different packets.

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EDX is pointer to RAW data of my packet(i've typed in chat "hello elite pvpers")

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and this one gives me a headache, firstly i thought it's a pointer to crypted data, but what for? dunno what it can be, maybe a key to crypt? no idea..
If some1 knows please help me:P

Best regards,
Lordzio.

Nice to see that there are not only leechers in the Metin2-Section. :p

1. parameter is a pointer to the encrypted data.
2. parameter is, as you have already found out, a pointer to the unencrypted data.
3. parameter is the length of the packet.
4. parameter is a pointer to the encryption key. Every time you log-in the client generates a new one encrypts all packets with it.

Furthermore the function's return value (stored in EAX) contains the length of the encrypted data.

Quote:

Originally Posted by Disconnect Nice to see that there are not only leechers in the Metin2-Section. :p 1. parameter is a pointer to the encrypted data. 2. parameter is, as you have already found out, a pointer to the unencrypted data. 3. parameter is the length of the packet. 4. parameter is a pointer to the encryption key. Every time you log-in the client generates a new one encrypts all packets with it. Furthermore the function's return value (stored in EAX) contains the length of the encrypted data.

thx mate, that reply was really fast :) now i'll try to implement it in c++.

No Problem. ;)
If you have further questions feel free to message me. But add me to your buddy list first cos I've blocked other PMs.

kann mir das jmd auf deutsch erklären xD bitte der bekommt auch thx wenn es kein google tranlator deutsch ist

Wie ist er in Client rein gekommen wie amcht man das?

Quote:

Originally Posted by Necroface Wie ist er in Client rein gekommen wie amcht man das?

I'm using polish client ( sorry if i understood u wrong, i know only Polish and English(badly) languages )

Hello! have you succeded in creating that packet prog?

Look at the date :o 2Years #reported because of pushing old threads.