crack-break's crack-break's crackme#2(unpacked)
| Download crack-breaks_CRACKME_#2_(unpacked).zip, 3 kb (password: crackmes.de) Browse contents of crack-breaks_CRACKME_#2_(unpacked).zip hmmmm... easy... very... easy...
Difficulty: 2 - Needs a little brain (or luck) | RatingVotes: 5 View profile of crack-break » |
Solutions
Solution by mik26vn, published 18. jan, 2008; download (9 kb), password: crackmes.de or browse.
mik26vn has rated this crackme as quite nice.
Solution by cosmos, published 18. jan, 2008; download (8 kb), password: crackmes.de or browse.
cosmos has rated this crackme as nothing special.
Solution by profdracula, published 18. jan, 2008; download (7 kb), password: crackmes.de or browse.
profdracula has not rated this crackme yet.
Solution by Computer_Angel, published 18. jan, 2008; download (9 kb), password: crackmes.de or browse.
Computer_Angel has rated this crackme as nothing special.
Discussion and comments
| halsten 17. Jan 2008 | Again, easy. Level 2 is too much for this one in my own opinion. |
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| halsten 17. Jan 2008 | Too easy and still defeated. crack-break, write a more harder one again. :P |
| br0ken 18. Jan 2008 | Small and easy algo :P |
| Computer_Angel 18. Jan 2008 | For relax at the weekend. Nice !!! |
| crack-break Author 18. Jan 2008 | yep budy i havent learnt the trick of encryption ... the day i learn.... i will post difficult ones |
| crack-break Author 18. Jan 2008 | there i did something wrong while coding..... hope next time without flaws |
| profdracula 18. Jan 2008 | Good for newbees. Code and logic is jaggy at some places. I am uploading solution, but main motive of solution is to show and learn from pitfalls of coding. P.S. Hi crack-break! Hey dost, thoda mehnat ki jarurat hai :) |
| cosmos 18. Jan 2008 | Is it really possible to keygen this crackme. It uses memory locations in serial calculation. I've coded one now but i'm not sure how it will work in other machines with different memory locations. |
| fromTurkey 18. Jan 2008 | hi everybody i want to ask you some questions how can we write a keygen. ı crack some codes here ( for newbees :) ) but ı dont know how to realize and determine keygens. i know the meanıng of the keygen that is creating serials but how does it works...:) thanks for all.. |
| DigitalAcid 18. Jan 2008 | Does a Selfgen count too ? :) @ fromTurkey: A keygen is a program that uses the same algorithm as the crackme. This can be done by "ripping" the code from the crackme or by writing your own program with that same algorithm. Obviously, if you choose for the last option, you need to understand the algorithm completely. |
| DigitalAcid 18. Jan 2008 | Oops, the selfgen was for another crackme, sorry =). |
| crack-break Author 18. Jan 2008 | @ profdracula... kya batu dost maine khabhi programming nai sikha... mai MSc biotechnology kar raha hooo... mai khud se MASM seekh raha hooo |
| fromTurkey 18. Jan 2008 | thanks for your answer digitalacid. |
| Computer_Angel 18. Jan 2008 | DigitalAcid@: if you ripping the code there is a chance that you don't need to know the algorithm if the keygen, just copy and paste. I think selfgen just like sniffing. |
| mik26vn 18. Jan 2008 | hello all, i will be very thankful if someone can give me a hint about ESI ? This crackme is very nice also ;) |
| DigitalAcid 19. Jan 2008 | @Computer_Angel: Yeah, i know, but no need to reinvent the wheel imo =). As long as you understand and/or explain how the algorithm works. I don't think it can be selfgenned anyway because the API i wanted to use isn't there... PS: was there or will there be a packed version ? Because it says "unpacked". |
| crack-break Author 19. Jan 2008 | well buddy... see... ESI is one of the 8 regis that are used by the proceessor that will be used for calculation thats required at that moment or very soon.... other data thats used very later are stored on stack..... another thing about ripping is that sometime the coder code things by usinfg pointers like [ebp+2c]... i doubt if ripping will help here..... moreover sometimes use of register use is so much confused by goood coders.... its really hard to rip.... its better to understand the algo and use your own registers... |
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