downloadbrowseT.0.R.N.A.D.0.'s KeyGenMe #5

Download T.0.R.N.A.D.0.__s_KeygenMe_#5.zip, 32 kb (password: crackmes.de)
Browse contents of T.0.R.N.A.D.0.__s_KeygenMe_#5.zip

>>>> READ-ME FOR T.0.R.N.A.D.0.'s KeyGenMe #5
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PLATFORM :: WINDOWS
LANGUAGE :: .NET
DIFFICULTY :: 4 [ Needs Special Knowledge ]

The Rules:
==========---
(*) NO PATCHING
(*) NO BRUTE-FORCING

The Tasks:
==========---
1. Try to get Status as "VALID".
2. Find the algorithm for the computations involved.
3. Make keygen to VALID Key for ANY name. Please note that VALID KEYS EXIST FOR ALL NAMES.
4. Write a descent tutorial. ;)

Hint:
==========---
Think about MID(KEY,2,3). ;)
Here, KEY can be ANY VALID KEY.

~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~
printf("T.0.R.N.A.D.0. - born 2 %X\n",49374);
_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_

Difficulty: 4 - Needs special knowledge
Platform: Windows
Language: .NET

Published: 24. Apr, 2009
Downloads: 484

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Solutions

Solution by indomit, published 29. apr, 2009; download (7 kb), password: crackmes.de or browse.

indomit has rated this crackme as quite nice.

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Discussion and comments

T.0.R.N.A.D.0.
Author
25. Apr 2009
My first .NET KeyGen-Me :-)

Your keygen should generate multiple keys for each name, IF MULTIPLE KEYS EXIST ;-)
indomit
27. Apr 2009
nice-nice crackme :)
solution uploaded :)
T.0.R.N.A.D.0.
Author
27. Apr 2009
Glad to know that you liked it :)
T.0.R.N.A.D.0.
Author
29. Apr 2009
Oh! I just noticed that the hint i gave was useless :p

I had decided to check mid(key,2,3) but later dumped it probably.
T.0.R.N.A.D.0.
Author
29. Apr 2009
Thanx @ indomit for the solution.
papanyquiL
15. May 2009
Such a great keygenme :P
T.0.R.N.A.D.0.
Author
16. May 2009
Glad to know that you liked it.

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