[127113] in cryptography@c2.net mail archive
Re: Why doesn't Sun release the crypto module of the OpenSPARC?
daemon@ATHENA.MIT.EDU (Jack Lloyd)
Mon Jun 30 12:20:27 2008
Date: Sun, 29 Jun 2008 15:41:44 -0400
From: Jack Lloyd <lloyd@randombit.net>
To: Cryptography <cryptography@metzdowd.com>
Mail-Followup-To: Cryptography <cryptography@metzdowd.com>
In-Reply-To: <1DF5B79C-7261-4811-988D-183C35D92B38@zooko.com>
On Fri, Jun 27, 2008 at 12:19:04PM -0700, zooko wrote:
> and probably other commodity products). Likewise newfangled ciphers like
> Salsa20 and EnRUPT will be considered by me to be faster than AES (because
> they are faster in software) rather than slower (because AES might be built
> into the commodity hardware).
The calculus on AES may change in the nearish future: Intel is adding
AES instructions in upcoming processors, and AMD is adding another set
of instructions in SSE5 to assist AES implementations. AMD claims a 5x
speedup for AES using SSE5 versus plain x86-64 instructions [2], I
have not yet seen performance estimates for the Intel instructions.
-Jack
[1]: http://softwarecommunity.intel.com/articles/eng/3788.htm
[2]: http://www.ddj.com/hpc-high-performance-computing/201803067
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