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Message-ID: <4419a27d11105bb37a033ac790e7138c@smtp.hushmail.com> Date: Sun, 12 Feb 2017 18:33:20 +0100 From: magnum <john.magnum@...hmail.com> To: john-users@...ts.openwall.com Subject: Re: to Single or not to Single On 2017-02-12 09:32, Patrick Proniewski wrote: > Hi, > > Should I try and write a bug report about this on github? > > regards > patpro Please do, or we will forget. Jim has little time right now. magnum > On 05 févr. 2017, at 09:26, Patrick Proniewski wrote: > >> On 04 févr. 2017, at 21:33, Solar Designer wrote: >> >>> That said, I think it'd be even better to figure out and fix whatever >>> issue is causing the extremely poor performance, and then you won't have >>> to worry about those extra candidates being tested - in fact, you'd want >>> more of them to be tested. >> >> I do agree. >> I've made another test, that probably compares with the --test function. I've ran this: >> >> time ./john --single=None --nolog --verbosity=1 aa-postsingle --pot=dummy3.pot >> Using default input encoding: UTF-8 >> Loaded 1395762 password hashes with 1395762 different salts (dynamic_25 [sha1($s.$p) 128/128 AVX 4x1]) >> Press 'q' or Ctrl-C to abort, almost any other key for status >> 0g 0:00:00:03 50.00% (ETA: 21:44:44) 0g/s 0p/s 0c/s 0C/s >> 0g 0:00:00:04 50.00% (ETA: 21:44:46) 0g/s 407283p/s 407283c/s 407283C/s messershre >> 0g 0:00:00:04 DONE (2017-02-04 21:44) 0g/s 477983p/s 477983c/s 477983C/s rolltide1!..rrolltide1! >> Session completed >> >> >> real 0m13.070s >> user 0m10.627s >> sys 0m2.391s >> >> where "aa-postsingle" is a file containing only hashes remaining after the end of a --single=None run. To sum it up, it contains only hashes that wont be cracked by the given candidate. No super-fast, but really good compared to files with a mix of good and bad candidates. >> >> So it looks like it's really the mix of good and bad candidates that impact performance. >> >> patpro > >
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