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The following archive was created by hippie-mail 7.98617-22 on Sat Apr 10 1999 - 01:18:27
Dutra de Lacerda (dulac@ip.pt)
Tue, 16 Feb 1999 15:01:46 +0000
At 16:21 15-02-1999 -0800, you wrote:
>
> From a cryptography and overall professional point of view, does the Pentium
> III Processor od the AMD K7 Processor more suitable for application?
Its very unlikely for 3 major reasons:
From the crypto point of view differences for any CPU above the 586
(Pentium class) are small. In performance terms,the superiority of the 586+
above the 486 is its comfortable L1 cache size. But there even the 486 was
already very good as long as all the code could reside in the L1 cache.
From the overall performance point of view K7 samples are showing it as
far superior than the Pentium II... and the Pentium III seem not to have made
such a quantum leap.
From the generational point of view Pentium III is a just a slightly
more efficient 686 while the K7 really gets the architectural enhancements, and
performance, that make it a true new generation CPU, a 786.
Further Note: We cannot choose such beasts just to get crypto done. Even a 486
would do that. The question is: What are your needs?!? From this point here you
then choose the algorithm... not necessarily the CPU since all new ciphers are
really fast and any 686 is fast enough even for the slowest cipher. YOU DON'T
NEED A "CRAY" computer to have security, you need a safe algorithm and a secure
implementation. The application the becomes your concern after choosing the
algorithm.
Examples of safe and lightening fast algorithms: TwoFish, RijnDael, RC6.
Is your implementation safe?!? This is your major concern, not the CPU.
Cheers,
Dutra de Lacerda
- - -
Antonio Manuel Melo de Carvalho Dutra de Lacerda
Morada : Rua Rodrigues Cabrilho, 5 - 5 Esq.
1400 Lisboa, PORTUGAL
Telefone : +351-(1)-3013579
FAX & BBS : +351-(1)-3021098
The following archive was created by hippie-mail 7.98617-22 on Sat Apr 10 1999 - 01:18:27