downloadbrowsenait's CrackMe#3

Download CrackMe3.zip, 200 kb (password: crackmes.de)
Browse contents of CrackMe3.zip

Actually this is a KeygenMe, oh well... As you can guess your task is writing a keygen.

A further restriction to it is that you are NOT allowed to use any brute force method to calculate the key.

Oh, before I forget, your solution needn't be able to generate all possible correct keys. As far as I can tell that won't be
possible without a brute force approach.

If you would like to patch, find the one byte patch.

Have fun.

PS.:
I hope this is something which makes up a bit for those disappointed with CrackMe#5

Difficulty: 3 - Getting harder
Platform: Windows 2000/XP only
Language: C/C++

Published: 10. Sep, 2006
Downloads: 403

Rating

Waiting for at least 3 votes
(we have only 1).

Rate this crackme:

Send a message to nait »

View profile of nait »

Solutions

There are no solutions to this crackme yet. Have you solved it? Please write a tutorial and submit it here!

Submit your solution »

Discussion and comments

badmojo
11. Sep 2006		Solved it. :) Interesting one.
The clue wasnt much use, maybe I missed something there, hehe.
nait
Author
12. Sep 2006		Which part did you solve? The one byte patch or the keygen?
I admit that the hint isn't of any use for the patch or anything regarding the code. It's referring to the key algorithm.
badmojo
13. Sep 2006		I just crafted a key, didnt make a keygen though... Sorry! :)

You may leave your comment, thoughts and discuss this crackme with other reversers here.
Acting childish will not be tolerated.
HTML and such will be left as-is, so don't try.