Upload:
2:33 PM 04/05/2021
Description
You know the drill, get the good boy message.
no patching, just a valid serial number and/or keygen.
feel free to post your valid serials in the comments ;)
4epuxa on 11:38 AM 04/06/2021: 1112111
4epuxa on 12:01 PM 04/07/2021: Also n2717
r0B on 1:39 PM 04/07/2021: nice work 4epuxa, you're fast!
rDFDyYI on 2:56 PM 04/07/2021: good crackme, uploaded a solution, also get serial numbers abcdifg and abcdefc (based on abcdefg), there is explained calculations in solution
r0B on 2:31 PM 04/09/2021: thanks rDFDyYI for the very thorough write up!
I can say that you have completely understood the crackme/algorithm ;)
9heartache9 on 8:57 AM 04/12/2021: Here's a simple keygen I wrote. It copies the serial to your clipboard so you can paste. https://cdn.discordapp.com/attachments/687103642377125907/831090391574642688/Keygen_for_sansuu.zip
synthesize on 4:23 AM 04/13/2021: why does lResult & 1 have to be true and why does lResult have to be between 5 and 11? what does lResult hold?
Mick@ on 3:13 PM 04/15/2021: Even & Odd.;)
Some valid serials:1010101,)()()(),a0a0a0a,5454545 ...
You have to choose 7 chars.
For every couple: the first char have to have his LSB set only, the second not set.Use ascii to binary docs,and test: '1' AND '0'...
MrNatas on 2:55 PM 04/16/2021: Awesome crackme! It took me a few days on and off to figure out because I am a beginner but I learned a lot about bitwise operations. The key I came up with was c8e&4
pranav on 4:09 PM 05/29/2021: finally cracked this crackme. Pretty good algorithm you got there. The hardest part except the algorithm was to find the procedure(main).
puelo on 10:30 PM 06/30/2021: Very nice crackme. I've got very lucky as my first guess "wfwfwfw" directly got accepted as valid :D.
Here is one possible keygen: https://pastebin.com/Shu0cUrM
Raghu on 8:08 PM 10/28/2021: This Key Worked for me
gjgjgjg
ten-ten on 5:15 PM 11/30/2021: I gotten a0a0a0a too while trying to break the bitwise and
(v1 & 1) != 0. Overall a fun reversing key gen challenge.
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Solution by rDFDyYI:
there is no keygen in my solution, but there is a little explanation and 2 manually-calculated valid serial numbers
Solution by Aodrulez:
This was a fun challenge. Submitting keygen (in python) as solution.
Solution by pranav:
Not comprehensive as usual, as there are other solutions available.