Date: Thu, 5 Sep 2013 07:35:32 +0530 From: Sayantan Datta <std2048@...il.com> To: john-dev@...ts.openwall.com Subject: Re: mask mode bug Hi magnum, On Wed, Sep 4, 2013 at 3:44 AM, magnum <john.magnum@...hmail.com> wrote: > OK, I see false first characters even not using 8-bit. And false negatives. > > OpenCL: > $ rm new.pot && GWS=4096 ../run/john ~/john/test/bigtest.rawmd5 > -form:raw-md5-opencl -pot:new.pot -mask=?a?a > Device 1: GeForce GT 650M > Local worksize (LWS) 64, global worksize (GWS) 2048 > Loaded 61747 password hashes with no different salts (Raw-MD5-opencl [MD5 > OpenCL (inefficient, development use only)]) > Using kernel md5_ccc... > Press 'q' or Ctrl-C to abort, almost any other key for status > CS (marlid36) > r1 (u ballzza) <-- wrong result!! > JE (Nitewing) > 3g 0:00:00:00 4.285g/s 1.428p/s 12892c/s 796095KC/s .. > Warning: passwords printed above might not be all those cracked > Use the "--show" option to display all of the cracked passwords reliably > Session completed > > CPU: > rm new.pot && ../run/john ~/john/test/bigtest.rawmd5 -form:raw-md5 > -pot:new.pot -mask=?a?a > Loaded 61747 password hashes with no different salts (Raw-MD5 [MD5 128/128 > AVX 12x]) > Press 'q' or Ctrl-C to abort, almost any other key for status > 21 (u ballzza) > CS (marlid36) > JE (Nitewing) > hi (horny weeiner) > lg (larjar82) > me (_Jok3R_) > yo (yo) > 7g 0:00:00:00 700.0g/s 902500p/s 902500c/s 55724MC/s ~~ > Warning: passwords printed above might not be all those cracked > Use the "--show" option to display all of the cracked passwords reliably > Session completed > I have tested and confirmed that some of the characters are wrong using mask=?a. I can see that the opencl mask mode doesn't crack some hashes in your test. But I can't reproduce this error. Can you post your test hashes or a recipe to produce them? Regards, Sayantan Content of type "text/html" skipped
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