Quote:
Originally Posted by Sweetpea
Theoretically, you should be able to find the key, but I think you'd need the original and the encrypted file... The chances of that happening would be nil...
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Even in that circumstance, all you could do would be to try and encrypt the original file with every possible key until you got a match for the encrypted file. For a 16-digit credit card number, such a "brute force" approach would probably be impractical.