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Message-ID: <CANO7a6wS406O4pY25yxW_Vu88Ojrxro68nnudFGY_XGxQh1wAQ@mail.gmail.com>
Date: Mon, 8 Oct 2012 22:26:15 +0530
From: Dhiru Kholia <dhiru.kholia@...il.com>
To: john-dev@...ts.openwall.com
Subject: Keccak Patch
Hi,
I have used official optimized implementation as base. This code is just a PoC.
$ ../run/john -fo:keccak -t # FX-8120 with XOP, 1 core
Benchmarking: Keccak 512, E = 64 [32/64]... DONE
Raw: 2029K c/s real, 2029K c/s virtual
$ ../run/john -fo:keccak -t # FX-8120 with XOP, 8 cores
Benchmarking: Keccak 512, E = 64 [32/64]... (8xOMP) DONE
Raw: 6163K c/s real, 772362 c/s virtual
In comparison, hashcat does 3.28M on one core and 12.3M using 8 cores.
Lot of performance loss can be attributed to OpenMP.
Results without XOP aren't too bad.
$ ../run/john -fo:keccak -t # FX-8120 without XOP, 8 cores
Benchmarking: Keccak 512, E = 64 [32/64]... (8xOMP) DONE
Raw: 5036K c/s real, 631081 c/s virtual
How do I make sure that XOP instruction set is being used?
This patch compiled easily on one machine but on bull machine I had to
disable DES (family) formats.
--
Cheers,
Dhiru
Download attachment "0001-Keccak-PoC.patch.gz" of type "application/x-gzip" (20458 bytes)
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