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Message-ID: <BLU0-SMTP18135D0AE37A2F9FDA3A865FDA20@phx.gbl>
Date: Mon, 27 Jan 2014 14:53:05 +0100
From: Frank Dittrich <frank_dittrich@...mail.com>
To: john-dev@...ts.openwall.com
Subject: Re: Handling of hashes with different iteration counts
On 01/27/2014 01:42 AM, magnum wrote:
> On 2014-01-26 23:32, Frank Dittrich wrote:
>> If an input file contains several hashes of the same hash algorithm, but
>> with different iteration counts, it would be good if john would report
>> this and allow an easy to select hashes which require CPU time to be
>> attacked separately.
>
> Agreed.
>
>> To improve the current situation, I think the format interface needs to
>> be extended.
>> Each format should define a new function:
>> unsigned int iteration_count(char * ciphertext)
> ...
>> What do you think? Too much effort for a limited use?
>
> I think it makes sense. But if we decide to do this, it'll just be a
> GitHub issue until we release J8 and J1. I will not maintain yet another
> branch for months.
OK, I created a topic branch in my local repository and am working on a
patch.
Let's see how complicated or invasive it will be.
Frank
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