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Date: Tue, 28 May 2013 16:32:49 -0400
From: Matt Weir <cweir@...edu>
To: "john-users@...ts.openwall.com" <john-users@...ts.openwall.com>
Subject: Re: How to limit the number of guesses?
Rafael,
Sorry I misunderstood you earlier. Unfortunately I don't think it's
possible to use JtR's default "Single Crack" mode where it switches between
single ruleset and incremental mode automatically, (plus uses username and
GECOS info), along with the --stdout option. If you manually want to do it
though, you can get a rough simulation by running the single ruleset in
wordlist mode and then incremental mode using the --stdout option. Aka:
./john -stdout -wordlist=username_gecos.dic -rules=single | awk '{i++;if
(i>1000000) { exit 4; } print}' | ./john -session=real -stdin
-format=raw-md5 test_passwords.dmp
*figure out how many guesses were made for the new limit...
./john -stdout -incremental=ALL | awk '{i++;if (i>NEW_LIMIT) { exit 4; }
print}' | ./john -session=real -stdin -format=raw-md5 test_passwords.dmp
That being said, it's almost certainly easier just to go with Magnum's
option.
Matt
On Tue, May 28, 2013 at 3:59 PM, Frank Dittrich
<frank_dittrich@...mail.com>wrote:
> On 05/28/2013 08:22 PM, magnum wrote:
> > On 28 May, 2013, at 20:05 , Rafael Veras <rafaveguim@...il.com> wrote:
> >> In one of my experiments I'm comparing a custom cracker with john
> running
> >> in the "default order of cracking modes".
> >>
> >> However, AutoStatus (externals, in general) seems to work only on
> wordlist
> >> mode.
> >
> > There are external modes and external filters. External filters (like
> AutoStatus or Solar's suggested Status50G) can be used with any cracking
> mode. What did you try that did not work?
>
> The first mode in a default run is single mode.
> How does AutoStatus count the number of candidates if this number
> 1. depends on user name and other information that is used to generate
> candidates
> 2. is not the same for every hash (due to reason #1)
>
> Frank
>
>
>
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