[_j_]'s MARs
| Download mars.kgnme.j.zip, 100 kb (password: crackmes.de) Browse contents of mars.kgnme.j.zip Create a working keygen :)
Difficulty: 4 - Needs special knowledge | RatingWaiting for at least 3 votes View profile of [_j_] » |
Solutions
Solution by cyclops, published 23. nov, 2007; download (60 kb), password: crackmes.de or browse.
cyclops has rated this crackme as quite nice.
Discussion and comments
| [_j_] Author 27. Mar 2007 | m@rio_crk of mbe has spotted a bug: "I found that you only need to input "3" in second line and the first number in 3rd line of userkey.txt to make it registered." Disregard this bug, it's not a valid solution. Otherwise, any takers? |
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| [_j_] Author 09. Sep 2007 | Anyone ever gonna take a shot at this one? |
| HMX0101 10. Sep 2007 | Mate, don't know if this a bug... You only check, if keyfile_line3 = (keyfile_line1 ^ const_ % SHA512(HDD-SN) [hash must be prime, so it will add 1 until it becomes a prime])... so keygenning only consist in ripping/imitate routine... That's which you want? |
| [_j_] Author 22. Oct 2007 | Yeah, not sure that'll work, if you get it right though then by all means submit it |
| cyclops Moderator 29. Oct 2007 | Is it solvable? It has runtime 512bit (prime-1) factorisation used for runtime solving(3^x%prime, x=255 bits). I know 2 other ways to solve (cheating, but no patching :P and other than mario's). |
| [_j_] Author 07. Dec 2007 | Woh, didn't notice cyclops had posted a solution until now. Nice work buddy! |
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