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Date: Mon, 12 Mar 2012 13:10:32 +0100
From: pierzi <>
Subject: Re: qustion about custom charset

Thanks for info Rich

Avoiding hash generation/cracking procedure should save me some time;)
I should mention that i'll use this charset for random generated passwords
(so basicly it's something like -i:all without "special" signs)
So i'm not sure about "real word" section...

2012/3/12 Rich Rumble <>

> On Mon, Mar 12, 2012 at 4:15 AM, pierzi <> wrote:
> > Hello
> >
> > I'd like to create custom charset for jtr with upper/lower alha + digits
> and
> > i'm expiriencing some problems with this procedure.
> > Whait i've done is:
> > 1) deleted current pot file
> > 2) generated wordlist with 3 signs and all comibnation for
> lower-upper-alpha
> > 3) generated des hashes for this wordlist
> > 4) cracked entire wordlist withj john (all entrys in fresh pot)
> > 5) runed john -make-charest=charset.chr
> You don't actually need to crack any password to make a new
> charset. All JtR needs is the "colon plain_text" of the pot
> file, the hash portion doesn't matter when generating a charset.
> So if you generate the wordlist and prepend a colon to each
> word, jtr will use that wordlist to create the trigrams from.
> I am not sure how many words you should use to be more
> effective, probably as many as possible as. The closer they
> are to real world passwords the better.
> This is all you need in your "pot" file.
> :g8sc0tt!
> :pass1234!@#$
> :k33pg01ng
> :j0hnpOt.
> ...etc
> -rich

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