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Message-ID: <20150824021610.GA20810@openwall.com>
Date: Mon, 24 Aug 2015 05:16:10 +0300
From: Solar Designer <solar@...nwall.com>
To: john-dev@...ts.openwall.com
Subject: Re: testing every index (Re: more robustness)
Kai,
On Mon, Aug 24, 2015 at 09:37:36AM +0800, Kai Zhao wrote:
> Sorry. I found a bug with --test-full, and I have fixed it. Now, change
> the order of test vectors of AFS could not help.
Great! I was actually going to suggest that you enhance your tests like
that, but you already did. :-)
> It will fail because "" and "XXXXXXXX" generate the same xor.
They do, as I had described in another message.
> Should we add FMT_NOT_EXACT for AFS ?
No. I think that in practice someone cracking such hashes will want
processing to stop upon finding the first valid guess. Besides, this is
a rather obscure case that will not as commonly occur during password
cracking against non-empty cell names (and in practice they should be
non-empty).
I think you need to whitelist this special case in your tests, for this
specific format and plaintexts.
Thanks,
Alexander
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