Visual Basic Help

Naffa · 17 Nov 2006 at 10:11

Hi, I was wondering how I would go about decrypting a file using a const key.

I'm trying to decrypt an encrypted file I've been given by a friend. He's using a const key but I have no idea what it is..

Any help?

Cheers,
Naffa

toString · 17 Nov 2006 at 10:19

So the key could be anything? Good luck

Naffa · 17 Nov 2006 at 10:21

Between 1 and 255.

happytechie · 17 Nov 2006 at 10:56

do you know how he's encrypted the file? if there are only 254 possible choices for the key and you know the algorithm just run the decryption with sequential keys untill you decrypt it, if you don't knwo how he's encrypted it you're up a creek without a paddle.

If you're up that creek you have two options,
A: get your friend to tell you
B: Go to university and do a computer forensics course

I'd sugest option A

Paul

Dj_Jestar · 17 Nov 2006 at 11:49

or c) assume your friend only knows of the xor operator, then run a loop with it.

happytechie · 17 Nov 2006 at 11:56

option D, subject your friend to torture and abuse untill he FTPs the unencrypted file to you.