Re: RC5 slower than DES ?

Alex Alten (Andrade@netcom.com)
Tue, 17 Feb 1998 22:51:07 -0800

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Eric,

These numbers are indeed impressive, especially for DES.
Were these with a Pentium Pro 200 Mhz using a 256, 512
or 1024 KB cache? What was the size of your clear text
input in RAM?

- Alex

At 08:14 AM 2/12/98 +1000, Eric Young wrote:
>
>
>As for RC5 the cipher, it screams.
...
>ppro-200, linux gcc+asm
...
>RC5_32/12/16 raw ecb bytes per sec = 15399932.80 ( 0.519uS)
...
> DES raw ecb bytes per sec = 4692650.40 ( 1.705uS)

--
Alex Alten
Andrade@Netcom.Com
P.O. Box 11406
Pleasanton, CA  94588  USA
(510) 417-0159

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