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Date: Thu, 10 May 2012 12:14:44 +0530
From: SAYANTAN DATTA <std2048@...il.com>
To: john-dev@...ts.openwall.com
Subject: Re: Sayantan: Weekly Report #3

Hi Alexander,

Reduce BINARY_SIZE to 4, make other relevant adjustments.  Then you
> will in fact have false positives reaching cmp_exact(), and you'll need
> to have cmp_exact() implemented for real.  Move the "byte to hexstring"
> conversion from crypt_all() to cmp_exact(), because you only need to
> perform the conversion when you have a false positive, not all the time.
> Or you may perform the reverse conversion there, such as by simply
> calling binary() and using all of its returned 16 bytes, not just 4.
>

Did that. Now getting around 84k c/s without omp and upto 90k c/s with omp
using very large value of kpc.

pbkdf2_kernel.cl with the SHA1_part*() macros and SHA1() inline function
> does indeed look better.  Does it achieve the same performance as before?
>

Yes it does. Infact it performs better on GTX570.

Regards,
Sayantan.

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