
980716

hi, this is scut speaking.

introduction to crackme.exe:

 points for easy cracking:

 - no anti debugging tricks
 - no packed/crypted executeable
 - no self modifying code.

 points against easy cracking:

 - sophisticated encryption used
 - uncrackable without real/valid serial
 - no modifyed conditional jump will crack the exe

now, if you are a hardcore cracker stop reading and try to crack it.
if you want to know a bit more, read on.

some things you should know:

 - there is never a serial computed for your name
 - you don't know if your serial is valid, 'til the program quits
 - keymaker IS possible, but ONLY with the help of a valid serial
 - computing a serial by hand is impossible if you don't know a valid one

i thought of this protection just for fun, but i think it would be quite
effective against crackers if the simple encryption would be replaced by
IDEA or blowfish encryption (or even DES will do it for the next years).
the protection is very strong if the cracker doesn't know a valid serial,
which is the case in 98% of all cracking-attempts. even if the cracker
knows one it isn't that easy to reverse the algorithm. good luck :)

                                                   scut, efnet (nick sacbuctd)

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so here are some serials to play with:

name....: scut / blizzard
serial..: PGN100-21-5246849665526

name....: hardcore-cracker
serial..: PGN100-21-8531744212462

name....: bruteforcewilltakelong :)
serial..: PGN100-21-2325423155326
