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Date: Thu, 12 Apr 2012 17:32:36 +0800
From: myrice <qqlddg@...il.com>
To: john-dev@...ts.openwall.com
Subject: Re: Reverse steps for single round sha(sha-1, sha256/384/512)
Hi, Solar, Samuele, all
I just test it with reducing the 80 iterations to 77 in sha512, here is the
result(GTX580, BLOCKS 32, THREADS 512, ITERATION(MAX_KEYS_PER_CRYPT /
KEYS_PER_CRYPT): 128)
Before:
Many salts: 71827K c/s real, 71116K c/s virtual
Only one salt: 27787K c/s real, 27787K c/s virtual
After:
Benchmarking: Mac OS X 10.7+ salted SHA-512 [CUDA]... DONE
Many salts: 74186K c/s real, 74186K c/s virtual
Only one salt: 27787K c/s real, 27512K c/s virtual
~3.3％ improvement
Need more iteration reduction.
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