A Little Bit of History / Knowledge Base

[Endermanch]

The original of this keygen was uploaded to PlanetWPA as part of MSKey 4-in-1 algorithm sources back in early 2000s and was made by z22. The original of the Confirmation ID generator seems to be uploaded by diamondggg on MDL.

Shoutout to the tinyapps.org maintainer; you're a champ and deserve better recognition. Journalistic integrity at its finest.

Original sources
PlanetWPA: https://antiwpa.planet-dl.org/index2.php (originally antiwpa11.tk)
AntiWPA Forum: https://board.deioncube.in/

Here are the original files, uploaded in 2011 (the idea is very likely not original, they might be based on the disassembly of the MSKey 4-in-1, which was created way back in 2003-2005, hence I'm making the "early 2000s" claim)
https://antiwpa.planet-dl.org/Other/tmp/xpkey-0.03.cpp.txt
https://antiwpa.planet-dl.org/Other/tmp/win2k3key.c.txt

In case you want to download any files from PlanetWPA and check for yourself
Username: planet-dl.org
Password: planet-dl.org

Around a month ago I rewrote this keygen to yield correct results consistently (e.g. the 0x62A32 constant for XP generation is completely wrong, must be 0x40000 - the low 18 bit check, I don't know where they got it from, there's no BN_sqrt_mod() check in the Server 2003 algorithm) and made a native Win32 UI for it.

You can check the code in my repository and fix yours accordingly.
https://github.com/Endermanch/XPKeygen

I also managed to get Windows 98 generation working by reversing the private key for its BINK.

By the way, I suggest conjoining forces, so we can make this research go much quicker and more effective.
Feel free to take any code from my repository to fix yours. We also have a central issue as a forum and there was a lot of knowledge shared.
Endermanch/XPKeygen#3

Cheers!