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Date: Sun, 20 Nov 2005 11:35:49 +0100
From: Frederic Tronel <>
Subject: How to use kerberos 5 patch


I'm trying to use John the ripper with the Kerberos 5 TGT patch.
I have downloaded the patch john-1.6.37-krb5-1.diff.gz and the matching 
version of john the ripper (john-1.6.37.tar.gz). It compiles perfectly.
When I use the --test option it confirms that Kerberos TGT option has been 

$ /usr/local/bin/john --test
Benchmarking: Traditional DES [64/64 BS MMX]... DONE
Many salts:     616597 c/s real, 664333 c/s virtual
Only one salt:  610636 c/s real, 615561 c/s virtual

Benchmarking: BSDI DES (x725) [64/64 BS MMX]... DONE
Many salts:     21754 c/s real, 25288 c/s virtual
Only one salt:  20774 c/s real, 21776 c/s virtual

Benchmarking: FreeBSD MD5 [32/32]... DONE
Raw:    5106 c/s real, 5286 c/s virtual

Benchmarking: OpenBSD Blowfish (x32) [32/32]... DONE
Raw:    298 c/s real, 311 c/s virtual

Benchmarking: Kerberos AFS DES [48/64 4K MMX]... DONE
Short:  126109 c/s real, 133012 c/s virtual
Long:   443187 c/s real, 472481 c/s virtual

Benchmarking: NT LM DES [64/64 BS MMX]... DONE
Raw:    4724K c/s real, 5284K c/s virtual

Benchmarking: Kerberos v5 TGT [krb5 3DES (des3-cbc-sha1)]... DONE
Raw:    14145 c/s real, 16217 c/s virtual

I have taken an example ticket from the patch source code:

$ cat ticket

However it seems that I cannot make john works with it (or any other ticket):
$ /usr/local/bin/john ticket
No password hashes loaded
$ /usr/local/bin/john --format=KRB5 ticket
No password hashes loaded

I must be missing something. Any help would be appreciated.

Best regards,


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