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Re: Proven Primes

daemon@ATHENA.MIT.EDU (tom st denis)
Tue Mar 11 11:35:40 2003

X-Original-To: cryptography@wasabisystems.com
X-Original-To: cryptography@wasabisystems.com
Date: Tue, 11 Mar 2003 08:28:32 -0800 (PST)
From: tom st denis <tomstdenis@yahoo.com>
To: Cryptography <cryptography@wasabisystems.com>
In-Reply-To: <15981.56221.302956.977240@fireball.acr.fi>


--- Tero Kivinen <kivinen@iki.fi> wrote:
> SOPHIE GERMAIN PRIME SEARCH
> FIXED 64 bits.
> INDEX 0: 
> PRIME (bits 512), index = 131, 0.989151 seconds: 
>
0xffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a439dffffffffffffffff

What is the benefit of having leading/trailing bits fixed?  As far as I
know it doesn't make any form of index calculus attack any harder to
apply.

Tom

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