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Date: Wed, 12 Oct 2011 21:24:52 +0200
From: magnum <john.magnum@...hmail.com>
To: john-users@...ts.openwall.com
Subject: Re: how to print our the number of guesses john the
ripper makes to crack a password
On 2011-10-11 19:23, SH wrote:
> Is there anyway I can print out the number of guesses john the ripper makes?
> what I really need is a curve on the number of guesses that has been made
> vs. the number of cracked passwords from time to time.
> I am using version 1.7.5-jumbo-2.
I just implemented this and posted to the wiki at
http://openwall.info/wiki/john/patches (patch 0027). You may like the
0012 patch too. Both are somewhat experimental - I'm not sure they will
stay as they are in next Jumbo.
Sample output:
$ rm -f deleteme && ./john -pot:deleteme -inc:alnum
~/src/john/john/test/NT_tst.in -fo:nt -crack-status
Loaded 1500 password hashes with no different salts (NT MD4 [128/128 X2
SSE2-16])
1 (u8-NT)
guesses: 1/2352000 time: 0:00:00:00 0.00% c/s: 26133K trying: 0101535
- 0103682
start1 (u54-NT)
guesses: 2/9835008 time: 0:00:00:00 0.00% c/s: 75653K trying: marier
- mang96
test (u10-NT)
guesses: 3/26133248 time: 0:00:00:00 0.00% c/s: 145184K trying: tech
- ting
summer (u37-NT)
guesses: 4/36863744 time: 0:00:00:00 0.00% c/s: 194019K trying:
summit - sumpoo
johnny (u39-NT)
guesses: 5/91389952 time: 0:00:00:00 0.00% c/s: 365559K trying:
john75 - joha99
12345 (u28-NT)
Note 1: Applying only patches 0012 and 0027 to a 1.7.8-jumbo-7 tarball
should work fine, ignore the warnings when patching.
Note 2: The figure is not words tried, but word/hash combinations tried.
So in the output above, it actually made the first correct guess
somewhere around 2352000/1500 = candidate number 1568. This can be a bit
confusing.
magnum
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