[43110] in Cypherpunks
Photuris 512bit Prime Challenge? (Re: Photuris Primality verification needed)
daemon@ATHENA.MIT.EDU (Richard Johnson)
Wed Nov 8 16:43:02 1995
Date: Wed, 8 Nov 1995 13:02:26 -0600
To: cypherpunks@toad.com
From: Richard.Johnson@Colorado.EDU (Richard Johnson)
-----BEGIN PGP SIGNED MESSAGE-----
Hilarie Orman <ho@cs.arizona.edu> wrote:
>> Well, since we already require 56-bit DES in ESP in the interests of
>> promoting basic interoperability, wouldn't a 512-bit prime be
>> similarly sufficient?
>
>If you are willing to accept that in all likelihood, one year from
>now, some group will announce that can "crack" all key exchanges that
>using the published modulus, then sure, call it sufficient.
Sounds like someone just threw down a gauntlet.
Is it even possible to do the precomputations in a distributed manner in
less than a year or two? Or maybe starting a few years down the road?
It would be nice to give Photuris a chance to get established before the
least common denoninator shared modulus gets taken out, if we even can
take it out.
Richard
-----BEGIN PGP SIGNATURE-----
Version: 2.6.2
iQCVAwUBMKDVvfobez3wRbTBAQHpkgP9Fg+MGMz8U6Bisv45PZohoZxWbiEYuxJK
tg8oHD8TZRQsuqCwveWFRTnmPGiGKs2cBs5ZKXkFNU6ot7lZLO8d/1BSSjo0yX2Q
0FSXDSaBjUKIFcjHHGYBWrZZ+gjc/bdab94EqQvmFSUmAp73/mnKZgcyUPGL3Cmt
MW3jZhlVMdw=
=bfsQ
-----END PGP SIGNATURE-----
