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Date: Fri, 15 Jan 2010 00:17:35 -0500
From: Charles Weir <>
Subject: Re: JtR 1.7.4 and jumbo patch update

Sorry it took me so long to get back to you on this. I've been
traveling over the holidays and this is the first chance I've had to
re-run the tests on the same computer. I applied the
john-1.7.4-jumbo-5.diff patch to the base 1.7.4 install, (I used the
jumbo patch since I'm updating the install documentation), and reran
the tests using the same wordlist/ruleset that I used previously. Here
are the results:

Ryoki:run cweir$ ./john
-wordlist=../../../custom/dictionaries/english-lower -rules -stdout >
words: 35020483  time: 0:00:00:07 0.32% (ETA: Thu Jan 14 22:59:32
2010)  w/s: 5002K  current: sanoen66
words: 1510530674  time: 0:00:05:14 13.85% (ETA: Thu Jan 14 23:00:52
2010)  w/s: 4810K  current: addicks1991
words: 3070769321  time: 0:00:10:45 28.16% (ETA: Thu Jan 14 23:01:15
2010)  w/s: 4760K  current: snmptest5499
words: 6288846245  time: 0:00:22:29 57.69% (ETA: Thu Jan 14 23:02:03
2010)  w/s: 4661K  current: Trehaeven1308
words: 10285556295  time: 0:00:38:14 95.28% (ETA: Thu Jan 14 23:03:12
2010)  w/s: 4483K  current: n0ilivap43
words: 10495949352  time: 0:00:39:31 100.00% (ETA: Thu Jan 14 23:02:37
2010)  w/s: 4426K  current: 9zzzzzzzthi$

Analysis: It appears that the bug has been fixed. In addition, it ran
significantly faster this time, (shaving a full 10 minutes off the
running time). While I wasn't running any additional programs during
any of the tests, I don't know if this was due to my computer, the
changes made in the update, or applying the jumbo patch vs. the base
install. Regardless, it's now almost twice as fast as version
when comparing guess generation speed.

Matt Weir

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