downloadbrowseEastern Dragon's Keygen Me #2

Download, 31 kb (password:
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Special knowledge is needed for this one. Without it you are lost.

I have provided you with hints that might help when you're stuck.

Difficulty: 4 - Needs special knowledge
Platform: Windows
Language: C/C++

Published: 12. Dec, 2005
Downloads: 4735


Votes: 7
Crackme is quite nice.

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Solution by gome, published 17. dec, 2005; download (86 kb), password: or browse.

gome has rated this crackme as quite nice.

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Discussion and comments

13. Dec 2005
for the serial calculation,
look at offset 00401064 ;)
Eastern Dragon
13. Dec 2005
I have to disappoint you, there is no serial calculation in this keygenme. Only a serial check. It is not possible to sniff a key or make a keygenerator by ripping code.
13. Dec 2005
excuse me, for the inconvenient :)
15. Dec 2005
nice crackme! :)
18. Dec 2005
Very nice crackme, Eastern Dragon. I never saw such stuff in a crackme. I'll code a keygen very soon.
18. Dec 2005
Keygen ready, the code was not really time consuming :)
The algorithm is fully reversed, contrary to the solution posted by gome (nice solution though).
Only on my webpage ( ), as I was too lazy to write a tutorial as usual :( I promise I'll do it soon, this keygenme is worth a few pages!
Eastern Dragon
19. Dec 2005
your solution works, but it is not beautiful. the keygenme was designed to be solvable without brute force, albeit probably not without reading Hint 3 (see About dialog). anyway, thanks for the time you took to reverse this thing and write the bruter and the tutorial.

thanks for your kind words. i really look up to you as a keygenner, you are one of the true masters of this art. your page with your crypto-keygens is an invaluable resource. greatly looking forward to your tutorial.

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