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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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