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Tincat / Sacred Lobby Server
https://zenhax.com/viewtopic.php?f=18&t=11094
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Author:  Alby87 [ Mon Mar 25, 2019 7:05 pm ]
Post subject:  Tincat / Sacred Lobby Server

Hi!

Recently I found my old copy of Sacred, and I tried to go online with it. Obviously, the game is really old, and now the master server (called Lobby server) is closed. Searching more info, I found that Luigi made some searches about the protocol and the tincat2.dll file.

I tried to decompile the files and tap via wireshark, but I'm at a stale point. I recently discovered the Tincat_Scramble paper, tried on some packets but still is binary, I cannot decode it.

Have you some documentation on TinCat protocol? Having a full lobby server would be a dream, but at least making a direct-ip utility that fakes a lobby would at least be fantastic :)

Thank you!
Alberto

Author:  aluigi [ Tue Mar 26, 2019 2:40 pm ]
Post subject:  Re: Tincat / Sacred Lobby Server

Unfortunately the only part of the protocol I checked (and have documented) is the header:
Code:
"\xef\xfb\xba\xda"
"\xee\xff\xff\xef"
"\xcc\xff\xff\xef"
"\x03\x00\x00\x00"
"\x00\x00\x00\x00"
"\x00\x00\x00\x00"  // SIZE

"\x00\x00\x00\x00"  // CRC
                    // DATA

DATA contains a sort of header which is just like the main header:
"\xEF\xFB\xBA\xDA"
"\xEE\xFF\xFF\xEF"
...

Author:  Alby87 [ Tue Mar 26, 2019 5:30 pm ]
Post subject:  Re: Tincat / Sacred Lobby Server

aluigi wrote:
Unfortunately the only part of the protocol I checked (and have documented) is the header:


Oh well, there goes one of my last hopes :roll: reversing Tincat2.dll seems a lot of work (and one need to be really good in reverse engineering), original developer cannot disclose documentation because of legal reason... tough luck :|

Thank you Luigi ;)

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