[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: MD5 vs. SHA-1, Selection Criteria
Uri Blumenthal wrote:
>
> touch@isi.edu says:
> > 2. On A Sun SPARC 20/71 in SunOS 4.1.3, I have measured:
> >
> > stand-alone MD5 60 Mbps +/- 3 Mbps
> > stand-alone SHA 30 Mbps +/- 2 Mbps
>
> I have similar data (factor of 2) on Pentium under Linux-1.2.13.
> --
> Regards,
> Uri uri@watson.ibm.com
> -=-=-=-=-=-=-
> <Disclaimer>
Someone else reported to me via private email that the difference in
speed is basically a 5:4 ratio, due to the 80 rounds per 512-bit input
block in SHA-1 vs. 64 rounds for MD5. I wonder why the empirical
evidence doesn't seem to match.
99% of our work here at Cylink has been with SHA-1, so I can't offer
performance times for SHA-1 and MD5 code of similar caliber. However, I
will see if I can get a number for our production SHA-1 code on a Sun
SPARC 20/71.
Regards,
-John
jkennedy@cylink.com
References: