john-users - Re: hah what format ?

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Date: Thu, 30 Jul 2009 21:11:21 +0400
From: Solar Designer <solar@...nwall.com>
To: john-users@...ts.openwall.com
Subject: Re: hah what format ?

On Thu, Jul 30, 2009 at 05:01:36PM +0200, websiteaccess wrote:
>  Can you confirm the cypher about this hash :
>  
>  $1$6ujiFow0$gjGySuCT6BCfPRmD2QtgS.
> 
>  is it freeBSD hash ?  MD5(Unix) ?

Yes, it's a FreeBSD-style MD5-based crypt(3) hash.

>  I use JTr 1.7.3.1-all-2-mpi8, do you know what is the right syntax to 
> crack it ?

It's pretty much the same for any hash type supported by JtR:

$ echo 'x:$1$6ujiFow0$gjGySuCT6BCfPRmD2QtgS.' > pw
$ john pw
Loaded 1 password hash (FreeBSD MD5 [32/32])
pierre           (x)
guesses: 1  time: 0:00:00:00 100% (2)  c/s: 2390  trying: pierre

You do not need to specify the --format option for this one because it
is unambiguous to JtR as it is.  In general, you do not need to specify
this option with most hash types; there are only a few exceptions (such
as LM vs. NTLM vs. raw MD5).

Alexander

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