T.0.R.N.A.D.0.'s KeyGenMe #2

>>>> READ-ME FOR T.0.R.N.A.D.0.'s KeyGenMe #1
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PLATFORM :: WINDOWS

LANGUAGE :: C / C++ [ No protection ]

DIFFICULTY :: 3 [ Getting Harder ]

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SUBMITTED BY :: T.0.R.N.A.D.0.

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The Rules:
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(*) NO PATCHING

(*) NO BRUTE-FORCING



The Tasks:
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1. Find the algorithm.


2. Make keygen to generate RefID and Key.


3. Write a tutorial. ;)



Hints:
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1. The serial can consists of the entire array of visible chracters, but
only 4 different characters would also be enough.

2. THE 4 different characters are ( 2 * Alphabets ) + ( 2 * Numbers )

3. ANY set of 4 different [ even though they too may be ( 2 * Alphabets )
+ ( 2 * Numbers ) ] characters won't work.
There exists ONLY 1 such set.

4. Most important HINT : Idea of this is inspired by bRaInF**k.



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

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Difficulty: 3 - Getting harder
Platform: Windows
Language: C/C++

Published: 23. Mar, 2009
Downloads: 392