[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

RE: MAC speeds



D. J. Bernstein writes:
>My MAC takes 4.4 cycles per byte on the original Pentium.

Does it include the HMAC function? What is the sensitivity per data size?

thx

Uri Elzur
uri.elzur@intel.com


-----Original Message-----
From: D. J. Bernstein [mailto:djb@cr.yp.to]
Sent: Saturday, March 11, 2000 10:11 PM
To: ipsec@lists.tislabs.com
Subject: Re: MAC speeds


Helger Lipmaa writes:
> For comparison, Bosselaers' SHA-1 implementation (on Pentium, not on
> Pentium II) takes 13.1 cycles per byte.

My MAC takes 4.4 cycles per byte on the original Pentium.

(This comparison is slightly unfair, because my MAC provides 128 bits of
security, while SHA-1-based MACs can hope for 160 bits of security.)

---Dan






Follow-Ups: