SRP6 authentication, S client side

[Basszukneki]

Greetings!

I'm trying to log into a 3.35a MANGOS server without WoW client by using the SRP6 protocol.
I wrote a simple "server" which allowes me to log on it (nothing more) with the WoW client, SRP6 protocol (SRP: Design Specifications) worked fine there. I could use those given formulas.
But as soon i am pretending to be a client, i have problems calculating S. I try to use the S = (B - kg^x) ^ (a + ux) formula but it's simply giving different key than the S = (Av^u) ^ b on server side. Is it normal? If so, how should i calculate that?
I used several days understanding MANGOS and WOW protocol, and now i am completely stucked.

I'm sorry if it's a stupid question.
Also apologize for my bad english.

[kliment]

Yeah i have exactly the same problem .......... i am trying to connect the wow server for mounts now ...... but wow is probably using some different srp6 .... so if anybody knows how srp6 wow protocol works i would be very grateful if he explains it bit by bit ..... Thank you ! .........P.S Please excuse me for the bad English .......

[xkyve]

Yeah i have exactly the same problem .......... i am trying to connect the wow server for mounts now ...... but wow is probably using some different srp6 .... so if anybody knows how srp6 wow protocol works i would be very grateful if he explains it bit by bit ..... Thank you ! .........P.S Please excuse me for the bad English .......

When I had to deal with SRP6 I found the python example on the wikipedia page very informative:
Secure Remote Password protocol - Wikipedia, the free encyclopedia

If you want implementation details, then go to a custom made C++ wow client, called mangosclient a.k.a pseuwow:
http://www.mangosclient.org/