Re: high speed quantum cryptography

From: Eugen Leitl (eugen@leitl.org)
Date: Thu Nov 14 2002 - 05:57:16 MST


On Thu, 14 Nov 2002, Ross A. Finlayson wrote:

> I think most forms of published encryption are cracked.

The word cracked is meaningless in this context. Are you claiming that all
published cryptosystems can be broken requiring less effort than
brute-force, and that somebody somewhere has practical methods to do so?

That's a pretty strong claim. Can you back it up?

Btw, one time pads surely qualify as encryption, and they're provably
uncrackable. But I presume you're just saying Rijndael, 3DES, Twofish, and
all and sundry other methods have practical cryptoattacks against them.

That's not very likely, to say the least.



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