lcs Mixmaster Remailer writes:
> Second, quantum computers will already threaten much cryptography in
> use today. They would be able to factor numbers and find discrete logs,
> breaking the public key systems. For symmetric ciphers, they effectivelly
> halve the key length, which might even allow breaking 128 bit ciphers.
> (Which is why the new AES will support keys up to 256 bits.)
>
Can you explain the halfing effect on the key length? Or may be you
have some pointers to the literature on that?
Ciao,
Ulrich
--
Ulrich Kuehn ------------------ [EMAIL PROTECTED]
[EMAIL PROTECTED]
http://wwwmath.uni-muenster.de/~kuehn/