Date: Fri, 14 Jun 2019 11:12:57 +0200 From: magnum <john.magnum@...hmail.com> To: john-users@...ts.openwall.com Subject: Re: Unable to use OpenCL on arm64v8/debian stretch On 2019-06-14 06:46, billwhittaker@...e-mail.net wrote: > ../run/john --test --format=wpapsk-opencl > Device 1@...i: Mali-T860 > Benchmarking: wpapsk-opencl, WPA/WPA2/PMF/PMKID PSK [PBKDF2-SHA1 OpenCL]... 0: OpenCL CL_INVALID_PROGRAM_EXECUTABLE (-45) error in opencl_wpapsk_fmt_plug.c:270 - Error creating kernel Line 270 points at the run-time GPU build of WPA2/802.11w final kernel. Before this error, your system successfully built six other WPA kernels, so again it looks like there's no general problem with your installation but likely some runtime/driver bug that surfaces with this particular 7th kernel (which is a straight-forward kernel just involving SHA-256 and AES-CMAC). On a side note, what's the speed of the CPU format given just "--test --format=wpapsk" instead? Judging from the speed you got from sha1crypt-opencl, I doubt your GPU will be of much help cracking WPA (and BTW what's the speed of CPU sha1crypt?). magnum
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