AES for GnuPG, on Mon Oct 2?

[Simpson, Sam]

Hitachi actually claim that their patent covers all entries other than
Rijndael (see for example the 2 Hitachi letters at:
http://csrc.nist.gov/encryption/aes/round2/pubcmnts.htm).

My opinion is that it's a 2 horse race between Serpent and Twofish (Rijndael
needs more rounds, RC6 & MARS are awful on some platforms).  IMHO, Twofish
is just too complicated to be analysed sufficiently, leaving the highly
tweakable and incredibly conservative Serpent.

I could be wrong though ;)



Regards,

Sam Simpson
http://www.scramdisk.clara.net/

> -----Original Message-----
> From: Michael H. Warfield [mailto:mhw@WittsEnd.com]
> Sent: 02 October 2000 14:39
> To: Simpson, Sam
> Cc: Mark Atwood; gnupg-devel@gnupg.org
> Subject: Re: AES for GnuPG, on Mon Oct 2?
> 
> 
> On Mon, Oct 02, 2000 at 12:49:45PM +0000, Marc Mutz wrote:
> > Mark Atwood wrote:
> 
> > <snip>
> > > What would be cool is if someone has
> > > written "AES modules" for all 4 of the finalists,
> > <snip>
> 
> > It's _five_ finalists (though I agree that MARS will 
> unlikely stand the
> > competition and is effectively out of the race). They are (with my
> > opinions added in parantheses)
> 
> > 1) MARS (too slow, too small security margin)
> > 2) RC6  (patented - ugh)
> > 3) Twofish (complicated)
> > 4) Rijndael (only with increased round count)
> > 5) Serpent (will make it :-)
> 
> 	Serpent apparently is subject to a claim by Hitachi 
> that it holds
> a patent over some aspect of it.  Rumor has it that it's out 
> of the race.
> That's based on a coderpunks posting which I have not been able to
> independently verify.
> 
> > Marc
> 
> > -- 
> > Marc Mutz <Marc@Mutz.com>        
http://marc.mutz.com/Encryption-HOWTO/
> University of Bielefeld, Dep. of Mathematics / Dep. of Physics

> PGP-keyID's:   0xd46ce9ab (RSA), 0x7ae55b9e (DSS/DH)

	Mike
-- 
 Michael H. Warfield    |  (770) 985-6132   |  mhw@WittsEnd.com
  (The Mad Wizard)      |  (678) 463-0932   |  http://www.wittsend.com/mhw/
  NIC whois:  MHW9      |  An optimist believes we live in the best of all
 PGP Key: 0xDF1DD471    |  possible worlds.  A pessimist is sure of it!
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