downloadbrowseSaduff's FPU KeygenMe #2

Download FPU_KeygenMe_#2.zip, 203 kb (password: crackmes.de)
Browse contents of FPU_KeygenMe_#2.zip

I present you my second FPU KeygenMe. You may be wondering where's the first one. Well, I decided not to publish it here, because I think it's not as interesting as this one.
The algo may look a bit long at first look, but it's not really. The real stuff is at the end.
There are no cryptos, hashes or anything like that, just pure math. :)

Rules:

- No Patching!
- A Keygen is the only solution.

Good luck and I hope you like it. :)

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: Borland Delphi

Published: 09. Oct, 2010
Downloads: 460

Rating

Votes: 4
Crackme is quite nice.

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Solutions

Solution by tamaroth, published 15. oct, 2010; download (231 kb), password: crackmes.de or browse.

tamaroth has rated this crackme as quite nice.

Solution by KKR_WE_RULE, published 15. oct, 2010; download (1329 kb), password: crackmes.de or browse.

KKR_WE_RULE has rated this crackme as awesome.

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Discussion and comments

r-Evolution
08. Oct 2010
Is this obsfucated???
Saduff
Author
08. Oct 2010
No, it's not. It's just written using API and not the Delphi IDE.
KKR_WE_RULE
08. Oct 2010
heh- its more clear than normal delphi code i suppose :D
Saduff
Author
08. Oct 2010
There is a small problem with the KeygenMe.
Due to the differences in regional settings,
some will have the decimal separator set as a comma.
The KeygenMe supports only dot as the decimal separator.
I'm working on fixing this at the moment.
Saduff
Author
09. Oct 2010
OK, it shouldn't matter what decimal separator is set in your OS settings now. :)
Xspider
09. Oct 2010
and what about these exception ^o)
KKR_WE_RULE
09. Oct 2010
Some exceptions occur if ya serial format is wrong :)
& if ya spend enough time on this , ya will understand, whats the right serial format & shy these exceptions are thrown :)

@saduff : can ya handle that exception ?
Worth giving a try :)
Xspider
10. Oct 2010
yes that's what i meant it's worth giving a try :)
Saduff
Author
10. Oct 2010
Exceptions only occur when your serial format is wrong.
I don't care to handle these exceptions. It's your job to find out why it crashes and make a keygen that produces good serials, so it doesn't crash. :)
Consider these unhandled exceptions as part of the challenge.
If you believe you've found another bug that is not triggered by wrong serial format, then PM me and I'll see what I can do.
KKR_WE_RULE
10. Oct 2010
Good Idea :D

Beat it XSP!D3R :)
tamaroth
Moderator
11. Oct 2010
name: tamaroth
serial: 1P545859-5P069423-N2P67136-N16P6414

kg and tut on it's way
Saduff
Author
11. Oct 2010
Well done, tamaroth. Waiting for the keygen.
Expecting keygen from others too.
tamaroth
Moderator
11. Oct 2010
Solution uploaded (with kg ofc), should be up as soon as mod review it. Was quite nice kgme, cheers!
KKR_WE_RULE
11. Oct 2010
Waiting to see the tut :)

Must be interesting :D
tamaroth
Moderator
13. Oct 2010
Meh, i did stupid mistake in a keygen and my tut was therefore rejected, fixed it now and reuploaded, should be fine now, but you'll have to wait few more days for the result ;p
KKR_WE_RULE
13. Oct 2010
I've submitted a soln aswell :)

Got no response till date :D

Waiting to see ya soln :D

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