[RC5] Cycles per key

Décio Luiz Gazzoni Filho decio at revistapcs.com.br
Mon Sep 30 08:41:11 EDT 2002


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On Monday 30 September 2002 07:03, Jeroen wrote:
> Hi
>
> Just curios, how many cycles does it cost to process one RC5-64 key?
> And how much for a RC5-72 key on the moment?
>
>
> Jeroen

It doesn't make much sense to speak about RC5-72 speed right now, since we 
only have a prototype core in C++, which is of course much slower than hand 
optimized assembly (there is only so much a compiler can do.) We were told by 
one of the assembly coders that RC5-72 can reach 90-99% RC5-64 speed once it 
is optimized.

If you want a cycles/key figure, hop over to www.distributed.net/speed, grab a 
benchmarked Mkeys/sec value and the corresponding clock speed, divide clock 
by benchmarked value and that's the clocks/key value corresponding to that 
processor.

Décio
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.0.6 (GNU/Linux)
Comment: For info see http://www.gnupg.org

iEYEARECAAYFAj2YKk4ACgkQZ4XkjV48x2eDwQCfbPSqCZhfhEWh4Q/mKimVxBGB
oXgAn3OC1CHP1cUbXtasakES1bgXhQ3I
=nNDR
-----END PGP SIGNATURE-----

--
To unsubscribe, send 'unsubscribe rc5' to majordomo at lists.distributed.net
rc5-digest subscribers replace rc5 with rc5-digest



More information about the rc5 mailing list