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Date: Sun, 18 Nov 2012 10:36:25 +0100
From: magnum <john.magnum@...hmail.com>
To: john-users@...ts.openwall.com
Subject: Re: cracking passwords with a kerberos traffic dump / aes256-cts-hmac-sha1-96 (18) [MS]
On 18 Nov, 2012, at 9:00 , Dhiru Kholia <dhiru.kholia@...il.com> wrote:
> On Sun, Nov 18, 2012 at 6:59 AM, buawig <buawig@...il.com> wrote:
>>> 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).
>
> I don't think that it is necessary to modify krb-ng_fmt_plug.c to
> support M$ AD specifically as M$ AD follows RFC.
Does the RFC specify how to encode the password? Is the known plaintext string included in the RFC?
This is good news but it emphasizes the need for a pcap file showing authentication with a non-ascii password. The only thing I can imagine is that Micro$oft has finally gone clever (wait... can I really imagine that?) and started using UTF-8.
magnum
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