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Date: Sun, 18 Nov 2012 02:29:38 +0100
From: buawig <buawig@...il.com>
To: john-users@...ts.openwall.com
Subject: Re: cracking passwords with a kerberos traffic dump
 / aes256-cts-hmac-sha1-96 (18) [MS]

> As in standard Kerberos? It would surprise me a whole lot if
> Microsoft do not use the Unicode version of the password, or (even
> more likely) the 16 byte NT hash as input just like in mskrb5, as
> opposed to the plain string you use now.

Ok, this makes it clear why I was not be able to crack it. So the
outcome will be a MS specific john format (mskrb5-18).

According to a few sources MS uses the NT hash:

"Careful examination of the Windows specific implementation of Kerberos
indicates that the so called “long term secret key” is in fact the NT
hash for the account"

http://media.blackhat.com/bh-us-12/Briefings/Duckwall/BH_US_12_Duckwall_Campbell_Still_Passing_WP.pdf

http://msdn.microsoft.com/en-us/library/cc233855.aspx

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