openwall / openwall/john

wpapsk-opencl fails self-test at cmp_all(7) on AMD gfx90c with latest driver when using 1.9.0-jumbo-1 on Windows 10 64-bit

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notes/external issues portability
Dominant language
C
Stars
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Forks
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PR merge metrics
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Description

First show "no opencl devices found" then tried this solution https://github.com/openwall/john/issues/4327, now show:

Device 1: gfx90c [AMD Radeon(TM) Graphics]
Using default input encoding: UTF-8
Loaded 1 password hash (wpapsk-opencl, WPA/WPA2/PMF/PMKID PSK [PBKDF2-SHA1 OpenCL])
Cost 1 (key version [0:PMKID 1:WPA 2:WPA2 3:802.11w]) is 2 for all loaded hashes
Self test failed (cmp_all(7))

I'm using the latest video driver available, is a bug?

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the wpapsk-opencl self-test failure at cmp_all(7) on the reported AMD gfx90c and Windows 10 setup, then compare the behavior with the workaround discussed in issue 4327. Done means the failure is explained and the self-test result is corrected or the compatibility limitation is documented.

Written by the indexing model from the issue text.

Assessment

Tech stack
c
Domain
backend
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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