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Date: Mon, 27 Jan 2014 01:42:50 +0100
From: magnum <john.magnum@...hmail.com>
To: john-dev@...ts.openwall.com
Subject: Re: Handling of hashes with different iteration counts

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.

Then again, we/you could implement it in a topic branch and hope it will 
merge without too much effort later.

magnum

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