HMX0101's Newbie Challenge #2
| Download NC2.zip, 203 kb (password: crackmes.de) Browse contents of NC2.zip Newbie Challenge #2 by HMX0101
Difficulty: 2 - Needs a little brain (or luck) | RatingWaiting for at least 3 votes View profile of HMX0101 » |
Solutions
Solution by user2k, published 05. oct, 2008; download (6 kb), password: crackmes.de or browse.
user2k has rated this crackme as nothing special.
Discussion and comments
| w00b 23. Aug 2008 | I dont know how to get around the first check of 'HasUTF8BOM' .. I read about byte order marks but I still don't quite see what it's looking for |
|---|---|
| w00b 23. Aug 2008 | Nevermind I got passed it :) that took some work! |
| Zaphod 26. Aug 2008 | I found a key that works, but what exactly does a "keygen" mean in this case? There can be almost any number of correct keys, so what is a keygen? Is it a program that shows a lot of keys, or should it in principle show ALL the keys? |
| HMX0101 Author 26. Aug 2008 | If you've found a key that means, which u know there's only 0xFFFFFFFF serials :)... a keygen in this case will show all the possible serials :) |
| w00b 26. Aug 2008 | that's a lot of serials.. i must be missing something O_O that algo looks awfully big |
| Zaphod 27. Aug 2008 | HMX0101: It seems to me there must be a lot more than 0xFFFFFFFF serials. Now I won't reveal too much here, but out of the required number of digits in a key some of them can be anything. And it's all those almost identical keys I'm talking about. Why code a keygen that shows all these keys? The relevant keys are those that depend on four of the digits. The reason I'm bringing this up is that anything we can learn something from is relevant, but if it is just work and more work of the same kind, it is less appealing. It would seem to me that a solution that explains the relevant things should be considered good, but the demand for keygens would often stop people from writing solutions. It's just too much work. |
| HMX0101 Author 27. Aug 2008 | Yea.. i'm concient of that :P If u know how it works, its not hard! Maybe for the last challenge, i should lower the level muuuch... :o |
| user2k 05. Oct 2008 | Nice keygenme. Just uploaded keygen (linux binary+source code[gcc]). Sorry for no solution, just small readme with remarks from work) |
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.