[43135] in Cypherpunks
Re: Photuris Primality verification needed
daemon@ATHENA.MIT.EDU (Phil Karn)
Wed Nov 8 22:46:53 1995
Date: Wed, 8 Nov 1995 19:37:23 -0800 (PST)
From: Phil Karn <karn@qualcomm.com>
To: bal@martigny.ai.mit.edu
Cc: cypherpunks@toad.com, ipsec-dev@eit.COM
In-Reply-To: <199511081704.JAA07274@qualcomm.com> (bal@martigny.ai.mit.edu)
>I don't know. Maybe the right thing to do is require conforming
>implementations to support a large modulus but include recommended
>smaller moduli. Then Alice can always force Bob to use the large
>modulus but, if both agree, they can use something smaller from the
>standard or even their own home-grown modulus.
Thanks. That's pretty much what we are doing -- requiring a particular
1024-bit modulus but recommending several others as options. There's a
2048 bit optional modulus and may even be a 4096-bit option if I can
find one in reasonable time. There was going to be a 512-bit optional
modulus but the group has reacted so strongly to it that I'm willing to
withdraw it.
Phil
