downloadbrowseLesco's KeygenMe #2

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This time you'll have to solve a little math problem. I didn't use any protectors and anti-debug stuff, since the focus of the crackme is the algorithm. The goal is to write a working keygen+explanation of the crackme.
There's only one rule: Don't patch!

Difficulty: 5 - Professional problem to solve
Platform: Windows
Language: C/C++

Published: 11. Aug, 2006
Downloads: 619


Votes: 4
Crackme is quite nice.

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Solution by baderj, published 19. feb, 2015; download (74 kb), password: or browse.

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Discussion and comments

12. Aug 2006
Nice crackme.Here is my serial
20. Aug 2006
Nice Crackme.

Here is my Keygen. ;)

DeepBlue aka +++ATH0
21. Aug 2006
Glad to see someone is working on this crackme but posting the final result (a valid combination or a keygen) doesn't help the community. Please, try to write a nice tutorial too...
21. Aug 2006
an interesting keygenme, it's the 5th program I every looked at using a debugger. But a really interesting one. I got lost at figuring out the layout of the key.
DeepBlues keygen sources give the answers to most questions I had, but still would like to see some tutorial, hope you can make one for us!
21. Aug 2006
I already started writing a tutorial, but as a result of being very detailed at some locations in the keygenMe, it could take a while.

Lesco has also made some remarks and pointed out an error in my keygen, which i hope i can solve. (thx lesco)

Pls be patient. :)

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