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Message-ID: <CAD=7XjPHVM1FBT=9cZr8zu-DuLBBjY4Bm8fB+uzDAOQej2c8Fg@mail.gmail.com> Date: Sat, 13 Feb 2016 15:34:29 -0500 From: Frank Wang <frankw@....edu> To: john-users@...ts.openwall.com Subject: Re: Doing raw SHA512 hashes Sorry about that. opencl_office2013_fmt_plug.c has a bunch of functions but no "main" function as far as I can see. What file calls the functions in opencl_office2013_fmt_plug.c to do the cracking? I'm mainly wondering this because I want to make sure that I'm using the kernel in the right way to get the optimizations that John the Ripper has done. Frank On Sat, Feb 13, 2016 at 2:59 PM, magnum <john.magnum@...hmail.com> wrote: > On 2016-02-13 17:45, Frank Wang wrote: > >> Awesome, thanks magnum! I know the opencl_*.c files call the kernels you >> mentioned, but what files actually run the functions in the opencl_*.c >> files? >> > > I don't understand what you mean. The opencl_*.h are headers #include'd by > the kernels. The format calls the kernel. One such format is > opencl_office2013_fmt_plug.c. > > magnun > > > My goal is write an implementation of just raw SHA256/SHA512 hashes using >> openCL. >> >> Frank >> >> On Thu, Feb 4, 2016 at 1:54 AM, magnum <john.magnum@...hmail.com> wrote: >> >> On 2016-02-03 21:39, magnum wrote: >>> >>> On 2016-02-02 23:49, Frank Wang wrote: >>>> >>>> I am trying to run about 10 million raw SHA 512 hashes in my program and >>>>> offloading it to a GPU will make it substantially faster. It seems like >>>>> John the Ripper has this functionality, but it seems to be intertwined >>>>> with >>>>> the password cracking capabilities. Are there any SHA 512 OpenCL >>>>> implementations that are easy to separate and integrate into my >>>>> program? >>>>> Possibly that already exist in John the Ripper? >>>>> >>>>> >>>> I would think so. Our current GitHub code contains (among other >>>> implementations) generic SHA512 macros in src/opencl_sha512.h which is >>>> >>>> >>> Sorry, that should be opencl_sha2.h. The other file is an other >>> implementation that I'm not well acquainted with. >>> >>> magnum >>> >>> >>> >> >
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