*BSD News Article 69047


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From: j@uriah.heep.sax.de (J Wunsch)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: Crack problem with MD5 passwd file?
Date: 21 May 1996 07:07:01 GMT
Organization: Private BSD site, Dresden
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Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch)
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chris@vader.org (Chris Dabrowski) wrote:

>  Crack v4.1f: The Password Cracker, (c) Alec D.E. Muffett, 1992
>  Version of crypt() being used internally is not compatible with
>  standard.  This could be due to byte ordering problems - see the
>  comments in Sources/conf.h If there is another reason for this,
>  edit the source to remove this assertion.  Terminating...

> Is the problem due to the international version using MD5 encryption whilst
> the US one uses DES?

The default encryption of FreeBSD is MD5-based (and thus believed to
be even stronger than DES).  Of course, that's not compatible with the
rest of the world, but this doesn't hurt as long as you're not going
to share encrypted passwords e.g. via NIS.

DES versions are available to the world, and inside US, from different
locations.

If your crack is only intended for the local system (where you're
using MD5 passwords), it should be run with the MD5 algorithm, of
course.  Maybe you need to remove the above check, since crack is
apparently confused then.

-- 
cheers, J"org

joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)