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Message-ID: <566449.26906.qm@web76004.mail.sg1.yahoo.com>
Date: Mon, 21 Jun 2010 10:20:36 +0800 (SGT)
From: kristian <x_astroboyz@...oo.co.id>
To: john-users@...ts.openwall.com
Subject: john the ripper for Kerberos Ticket

I want to ask about using John The Ripper for cracking Kerberos V5 
ticket.
I have searched in Google and John The Ripper mailing list, 
but there is no answer for my question. I install John in freebsd 
operating system and get the ticket sniffed by Wireshark


this is an example of HEX stream of Kerberos ticket I sniffed :
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


I have added username separated by semicolon and save it in a file, 
like this :
atom:$krb5$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:


The file is known as Kerberos V5 TGT password hash, but can not 
crack the password.

I really appreciate any helps and answers.

Kristian W Adi Nugroho
Informatics Engineering of Institut Teknologi Telkom
(+6285222041990)



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