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Date: Tue, 23 Aug 2005 12:42:38 -0600
From: Stephen Cartwright <>
Subject: Re: JTR with bigcrypt/crypt16

The OS is: Tru64 51b

John version is 1.6

Here is a sample (password has been changed):


Thanks for your time!


On 8/23/05, Solar Designer <> wrote:
> Stephen,
> On Tue, Aug 23, 2005 at 11:42:56AM -0600, Stephen Cartwright wrote:
> > I tried to use JTR on a password file that uses bigcrypt to hash the
> > passwords. However the program does not seem to work with this type of
> > hash. Is there anyway to get JTR to work with bigcrypt?
> For the JtR-supported flavor of bigcrypt/crypt16, it should just work,
> splitting the hashes into their halves on load.  There's another (even
> weaker) flavor that JtR does not support (no demand).
> What OS did the password file come from?  To my knowledge, bigcrypt-alikes
> are used on at least some versions of HP-UX, SCO, OSF/1 (DU, Tru64),
> Ultrix.
> What version of JtR?
> Can you please post one line from your password file that JtR doesn't
> load?  (Obviously, change that password immediately.)
> Thanks,
> --
> Alexander Peslyak <solar at>
> GPG key ID: B35D3598  fp: 6429 0D7E F130 C13E C929  6447 73C3 A290 B35D 3598
> - bringing security into open computing environments
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