private key encryption program for you to hack at

Jack Mott thecrow at iconn.net
Sun Mar 24 06:49:01 PST 1996


Ok, I have been working on this for a while, and I wanted to let you 
guys have a go at it. I wrote a private key encryption program that I 
think should be hard to break, I will provide you with the EXE (MS DOS) 
file, some ciphertext, AND a big chunk of plaintext. The key is not 
ridiculously large, but it won't be anything obvious so don't bother 
brute forcing. 
	To encrypt, the program read in some system/time specific info, 
uses it to encrypt the file along with the key.  It then write the 
system/time specific info to the end of the file encrypted with the key. 
I THINK that the only weaknesses should be predicitability of the 
system/time info, or possibly finding patterns in the encrypted values. 
 I dont want to give out any source code yet, but it anyone wants some 
pieces of it just ask. crackme.zip file with paradox.exe, cipher.txt, 
and plain.txt

-- 
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    ||he    \_____/row

thecrow at iconn.net
"It can't rain all the time"

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