Openwall GNU/*/Linux - a small security-enhanced Linux distro for servers
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Sat, 14 Apr 2012 05:50:06 +0400
From: Solar Designer <solar@...nwall.com>
To: john-dev@...ts.openwall.com
Subject: Re: Reverse steps for single round sha(sha-1, sha256/384/512)

myrice -

On Thu, Apr 12, 2012 at 05:32:36PM +0800, myrice wrote:
> 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

Well done!  I am sorry I failed to comment on your previous posting re:
the 3 rounds reversal, but since you were on the right track you did not
really need my comments anyway, it seems. :-)

Thanks,

Alexander

Powered by blists - more mailing lists

Your e-mail address:

Powered by Openwall GNU/*/Linux - Powered by OpenVZ