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Date: Wed, 22 Nov 2006 09:06:20 +0300
From: Solar Designer <>
Subject: Re: Mac OS X 10.4 Hashes..

On Mon, Nov 20, 2006 at 02:37:10PM -0500, Nate Peck wrote:
> Can John handle salted SHA1 hashes, like the ones in OSX?

Yes, but only if you apply a patch to add this support.  Apparently,
this one works for salted SHA-1 hashes as used on OS X:

Please don't forget to let all of us know how it's worked for you!

> If so, how would one specify the right type?

The above patch uses "salt-sha1" to refer to this hash type, but you
shouldn't have to specify that explicitly.  If your input file is of the
right format, the hash type should be autodetected.

> And is this possible with the MPI patches to John?

You should be able to apply both the above patch and an MPI patch at the
same time, possibly with minor tweaks.  I do not recommend the use of
the MPI patches, though.

Alexander Peslyak <solar at>
GPG key ID: 5B341F15  fp: B3FB 63F4 D7A3 BCCC 6F6E  FC55 A2FC 027C 5B34 1F15 - bringing security into open computing environments

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