Re: AES encryption

From: Alan (a__l__a__n_at_hotmail.com)
Date: 04/02/04 

Date: 2 Apr 2004 11:30:12 -0800

ethernalbw@yahoo-dot-com.no-spam.invalid (pkj46rsf) wrote in message news:<406c0d06$1@127.0.0.1>...
> Is this a weakness some people could use to more easily broke the
> ciphered data ?

If your attacker knows the pattern, he can try a brute-force attack on
the message itself, if he has a way to test his guesses. That may
require less work than attacking the key or the cipher blocksize.
This is a problem with encrypting messages smaller than a block, and
smaller than the key....or encrypting messages containing known
patterns such that the number of possible messages is small.

Alan

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