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Message-ID: <20120116174034.GC20292@openwall.com>
Date: Mon, 16 Jan 2012 21:40:34 +0400
From: Solar Designer <solar@...nwall.com>
To: john-dev@...ts.openwall.com
Subject: Re: SHA-crypt
On Mon, Jan 16, 2012 at 04:48:46PM +0100, magnum wrote:
> Pushed to GitHub now, both sha-crypt256 and sha-crypt512. I didn't find
> much to optimise, it's spending over 95% in the OpenSSL functions. But
> OMP should scale well (I only tested two cores).
Thank you!
Here's what I am getting on 2xE5420:
Benchmarking: SHA-crypt-256 [OpenSSL 32/64]... (8xOMP) DONE
Many salts: 1756 c/s real, 219 c/s virtual
Only one salt: 1756 c/s real, 219 c/s virtual
Benchmarking: SHA-crypt-512 [OpenSSL 64/64]... (8xOMP) DONE
Many salts: 2112 c/s real, 262 c/s virtual
Only one salt: 2092 c/s real, 262 c/s virtual
I guess we should set BENCHMARK_LENGTH to -1 such that we only get one
"Raw" line. Key setup takes a negligible portion of time for slow
hashes like this.
BTW, I notice that you use #include "omp.h" in your new source files,
whereas the rest of JtR uses #include <omp.h> - I suggest that you use
the latter (only look for omp.h in system directories).
Alexander
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