Date: Thu, 02 Feb 2012 12:03:22 +0100 From: Samuele Giovanni Tonon <samu@...uxasylum.net> To: john-dev@...ts.openwall.com Subject: Re: strange behaviour of c/s on raw-md5 and raw-md5-opencl On 02/02/12 01:39, magnum wrote: > On 02/02/2012 01:16 AM, Solar Designer wrote: >> On Wed, Feb 01, 2012 at 03:43:09PM +0100, Samuele Giovanni Tonon wrote: >>> same password file, same incremental mode on CPU it last for 7:13 at >>> at 192911M c/s , on GPU it last for 5:12 at 48408 M c/s ? should'nt >>> the c/s be higher ? >> >> This sounds like the integer overflow issue that I fixed in the CVS tree >> a while ago. It's triggered when you use a format that buffers a lot of >> passwords (thousands) and at the same time you load a lot of hashes for >> a certain salt (or total if saltless). > > Samuele, the "bleeding-jumbo" branch on github includes these changes. thanks, i've tested it on bleeding jumbo the new raw-md5-opencl and raw-sha1-opencl, now i get ./john -fo:raw-sha1-opencl -i:alpha7 /tmp/pass [..] Loaded 10000 password hashes with no different salts (Raw SHA-1 OpenCL [raw-sha1-opencl]) guesses: 0 time: 0:00:05:03 DONE (Thu Feb 2 11:52:42 2012) c/s: 275679M trying: qqhjueq - qqjxjxq ./john -fo:raw-md5-opencl -i:alpha7 /tmp/pass [..] Loaded 10000 password hashes with no different salts (Raw MD5 [raw-md5-opencl]) guesses: 0 time: 0:00:05:42 DONE (Thu Feb 2 11:59:52 2012) c/s: 244242M trying: qqhjueq - qqjxjxq finally getting some good numbers Cheers Samuele
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