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The following archive was created by hippie-mail 7.98617-22 on Fri Aug 21 1998 - 17:15:57 ADT
Eric Young (eay@cryptsoft.com)
Thu, 12 Mar 1998 17:10:13 +1000 (EST)
On Wed, 11 Mar 1998, Bill Frantz wrote:
> Thanks Eric for your performance tables. It is nice getting real-world
> measurement instead of theoretical guesses. Can you easily come up with
> the storage costs for the internal optimized state for your cyphers?
The numbers that follow are for 32 bit CPUs.
DES uses 128 bytes, there is a static 2k table used to do the key expansion.
3DES, 384 bytes.
IDEA uses 216 bytes, but can use 108 at reduced performance on some boxes.
RC4 uses 1032, but can use 258 at about a %20 performance cost (on most boxes).
RC2 uses 256, but can use 128 at reduced performance.
RC5-32-12 uses 104 bytes
CAST5 uses 128 bytes
Blowfish uses 4168 bytes.
eric
The following archive was created by hippie-mail 7.98617-22 on Fri Aug 21 1998 - 17:15:57 ADT