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Date: Fri, 08 May 2015 23:19:55 +0200
From: magnum <john.magnum@...hmail.com>
To: john-users@...ts.openwall.com
Subject: Re: Advise on best approach (truecrypt pw based on pdf
 file)

On 2015-05-08 19:47, Demian Smith wrote:
> I've recently lost my truecrypt PW and am thinking to approach the
> recovery with JtR but am unsure about the best approach to do so. So
> hopefully I could get a couple of pointers into the correct direction of
> setting it up.
>
> I know a couple of facts, which hopefully make it feasible in the first
> place:
> - I have created the password from a random page of a random book¹
> - First letter MUST be capital
> - No numbers or diacritics,
> - Likely only I as second capital letter
> - No digits
> - Probably 5 -12 chars (I imagine it to be around 8, but that's guessing)

Are you saying the password is made up from initial letters of a 
sentence? As in "To be or not to be, that's the question" -> "Tbontbttq".

> At the moment I have tried creating a fake pot file from ¹ and creating
> a chr of it and then building a incremental rule:
(...)
> (¹ I have tried
> cat INFILE | sed -re 's/[?!.:]/\n/g' | sed -re
> 's/([A-Za-z])[A-Za-z]+[^A-Za-z]*/\1/g' > outfile

Did you look at outfile and see if your sed magic does everything you 
thought? You should probably just adjust it a little.

magnum


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