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Date: Sat, 9 Feb 2013 20:11:16 +0530
From: Dhiru Kholia <dhiru.kholia@...il.com>
To: john-users@...ts.openwall.com
Subject: Re: Support for PBKDF2 (SHA512)

On Sat, Feb 9, 2013 at 7:28 PM, magnum <john.magnum@...hmail.com> wrote:
> I'm implementing support for $ml$ format with '.' delimiter. From what I can google, a grub hash looks like this:
>
> grub.pbkdf2.sha512.10000.4483972AD2C52E1F590B3E2260795FDA9CA0B07B96FF492814CA9775F08C4B59CD1707F10B269E09B61B1E2D11729BCA8D62B7827B25B093EC58C4C1EAC23137.DF4FCB5DD91340D6D31E33423E4210AD47C7A4DF9FA16F401663BF288C20BF973530866178FE6D134256E4DBEFBD984B652332EED3ACAED834FEA7B73CAE851D
>
> So what format *do* we support? Why do we use a '$' delimiter? Can I drop that?

The current ml2john.py program produces hashes starting in
$pbkdf2-hmac-sha512$ and it uses '.' delimiter.

This change was done after multiple rounds of discussions with other developers.

IIRC in the past, we used to produce hashes starting with $ml$ with
'$' as the delimiter. I had no idea that an external tool had adopted
our "old-style" / development hash format.

magnum,

Please go ahead with the changes and thanks!

-- 
Dhiru

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