downloadbrowseNelix's Nelix CrackMe #1

Download Nelix_CrackMe_1.zip, 7 kb (password: crackmes.de)
Browse contents of Nelix_CrackMe_1.zip

OK, here comes my fist crackme:

Rules:
- Get the "Congratulation! Good job!" message
- Write a keygen and/or a crack
- If you write a crack: Write the crack in a .net languange!
- Keygens prefered!

I hope you have fun with this crackme.

Cheers!
Nelix

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: .NET

Published: 29. Dec, 2010
Downloads: 539

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Solutions

Solution by Cubinator, published 09. sep, 2014; download (310 kb), password: crackmes.de or browse.

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Discussion and comments

ukrandruha
19. Jan 2011		private string getPassword(string name)
{
byte[] arrbyt3 = new byte[16];
byte[] arrbyt1 = new byte[] {
15, 58, 143, 50, 67, 61, 164, 53, 35,
244, 178, 60, 88, 93, 77, 23};

string psw = "";
MD5 md5Hasher = MD5.Create();
byte[] data = md5Hasher.ComputeHash(Encoding.Default.GetBytes(name));
for (int i1 = 0; i1 < data.Length; i1++)
{
arrbyt3[i1] = (byte)(data[i1] ^ arrbyt1[i1]);
psw = psw + arrbyt3[i1].ToString("x2");
}

return psw;
}
Zephy
19. Jan 2011		Very interesting.
I tried it, but dont win :-)
I dont know how write out context of array into string in ilcode.
That was problem :-(
I'm enjoying to next IL crme :-)))
Nelix
Author
23. Feb 2011		OK, solution is here, waiting for a Tut...
Cubinator
09. Aug 2014		I've uploaded a tut, but it is being reviewed by moderators and I don't know how long this normally last.

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