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Re: digest algorithm performance

From: Jim Meyering
Subject: Re: digest algorithm performance
Date: Wed, 15 Jun 2005 14:11:48 +0200 
address@hidden wrote:
> I haven't looked too deeply into this,
> so this is just a heads up.

Yep.  I mentioned that coreutils/TODO wrt md5sum:

  Look into improving the performance of md5sum.
  `openssl md5' is consistently about 30% faster than md5sum on an idle
  AMD 2000-XP system with plenty of RAM and a 261 MB input file.
  openssl's md5 implementation is in assembly, generated by a perl script.

I suspect their sha1 code is similar.
I'd welcome patches to improve the performance of either.
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