Date: Wed, 23 Feb 2011 12:59:05 +0100 From: Samuele Giovanni Tonon <samu@...uxasylum.net> To: john-users@...ts.openwall.com Subject: Re: rawsha1 e NSLDAPS jumbo 12 opencl patch On 02/23/11 01:22, Solar Designer wrote: > Samuele, > > On Tue, Feb 22, 2011 at 09:55:52PM +0100, Samuele Giovanni Tonon wrote: >> attached here a patch for jumbo12 to add rawsha1 and NSLDAPS formats >> cracking with opencl. > > That's very nice, but I am puzzled why you don't focus on slower hashes > first, where the efficiency will be much greater? well i tried nsldaps since i've already had sha1 cl code and i was curious about seeing what happens on a salted hash instead of raw. > >> With a salted hash opencl was able to go 2x time faster than original: > > I suspect that Simon's SSE2 intrinsics patch will outperform your OpenCL > implementation... Perhaps try it for a "fair" comparison? That's > john-1.7.6-jumbo-12-intrinsics-2 on the wiki: > sure! I applied that patch as well as the one simon sent this morning to a jumbo12 vanilla and compiled with "make linux-x86-64" (don't have icc and make linux-x86-64-clang gave me some errors). i don't know if intrinsic only works with either icc/clang i suspect so since i got this: ./john -rules --format=salted-sha -w=/public/crack/00_varie password Loaded 7554 password hashes with 7554 different salts (Salted SHA [SHA-1]) guesses: 0 time: 0:00:10:15 6.28% (ETA: Wed Feb 23 14:54:59 2011) c/s: 5575K trying: panspermias - pansylikes ./john -i:all --format=salted-sha /tmp/password Loaded 7553 password hashes with 7553 different salts (Salted SHA [SHA-1]) guesses: 0 time: 0:00:10:11 c/s: 5573K trying: dake00 - dake23 maybe i'm doing wrong . Regards Samuele
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