Date: Mon, 24 Jun 2013 01:26:04 +0530 From: Sayantan Datta <std2048@...il.com> To: john-dev@...ts.openwall.com Subject: Re: Sayantan's weekly report #2 On Monday 24 June 2013 01:14 AM, Sayantan Datta wrote: > On Monday 24 June 2013 01:06 AM, Solar Designer wrote: >> Also, I think we should include an optimization in some/all kernels, >> where a consecutive range of ASCII codes (and beyond, for 8-bit chars) >> would be specified. Thus, there would be two ways to pass a charset >> spec for a char position into the kernel: either list of chars (need one >> byte per char), or range of chars (two bytes to specify the entire >> range). > Yes indeed. This would no longer require looking into local memory. We > can increase 32 chars per range to 48 - 64 chars. Would that be > sufficient ? > > one example: > > sayantan@...n:~/JohnTheRipper/run$ ./john > --mask='[1234567m]?l?l?l[123a4567]?l[12345o67][1234567o]' > -format=descrypt-opencl testsingle > Device 0: Tahiti (AMD Radeon HD 7900 Series) > Loaded 1 password hash (descrypt-opencl, traditional crypt(3) [DES > OpenCL]) > Press 'q' or Ctrl-C to abort, almost any other key for status > missadoo (u16-DES) > 1g 0:00:00:11 0.08583g/s 16876p/s 540039c/s 540039C/s 1iss1doo..MAXLENGT > Use the "--show" option to display all of the cracked passwords reliably > Session completed > > In this case range 0,4,6,7 is computed on GPU. Also the reported c/s > is 4096/32 = 128x slower. > > Regards, > Sayantan > My git repo: https://github.com/Sayantan2048/JohnTheRipper.git Regards, Sayantan
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