ietf-openpgp
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Re: ArcFour for OpenPGP [Re: Camellia for OpenPGP]

2007-04-25 01:46:49

Hello,

On Mon, Apr 23, 2007 at 05:45:21PM -0400, David Shaw wrote:

I really appreciate if I could read a paper(s) about analysis of this
technique.

http://eprint.iacr.org/2002/067 actually argues for 512 bytes.

Please note the following paper [1] by Andreas Klein, which is submitted
to Designs, Codes and Cryptography. AFAIK his attack is possible, even if
the first bytes of the keystream are discarded.

[1] http://cage.ugent.be/~klein/RC4/RC4-en.ps

Best regards,
-- 
Heiko Stamer <stamer(_at_)theory(_dot_)informatik(_dot_)uni-kassel(_dot_)de>, 
Fon: +49 561 804-6635