Follow @Openwall on Twitter for new release announcements and other news
[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Date: Wed, 8 Jan 2020 16:21:58 -0300
From: Ricardo CYRYLZ MIESZKO <>
Subject: Re: AMD and MacOS OpenCL issues

I can send you the hash file, but first I'll recompile JtR to increment the
max len.

On Tue, Jan 7, 2020 at 10:28 AM Claudio André <>

> Hi
> We can easily find errors in the Apple OpenCL runtime and in AMD drivers.
> If you intend to actually crack using any of these, make sure that all
> target formats are NOT problematic on these "platforms".
> Driver errors are difficult to troubleshoot. And we need volunteers working
> on it. We are aware of several bugs.
> Besides, OpenCL and CPU formats are TWO DIFFERENT formats:
> - the implementation details and limits are NOT the same.
>   - the maximum length, the supported algorithms, and so on, differ.
> Something that is crackable using a CPU format may be not crackable using
> the OpenCL format.
> And, please:
> - provide (in private) the problematic file. The hash created by a *2john
> tool, at least.
> ----------
> BTW: and that's my opinion, we desperately need hardware to test JtR. I
> recently discovered that it may be more complicated to use AMD hardware
> nowadays (
> Devs need help.
> Claudio

Powered by blists - more mailing lists

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.