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Date: Fri, 2 Aug 2013 10:25:26 +0530
From: Sayantan Datta <std2048@...il.com>
To: john-dev@...ts.openwall.com
Subject: Re: mask mode issues

On Mon, Jul 29, 2013 at 12:23 AM, Solar Designer <solar@...nwall.com> wrote:

> Lukas, Sayantan -
>
> On Sun, Jul 28, 2013 at 03:47:09AM +0200, Lukas Odzioba wrote:
> > 2013/7/27 Solar Designer <solar@...nwall.com>:
> > > On Sat, Jul 27, 2013 at 11:58:53AM +0200, Lukas Odzioba wrote:
> > >> ukasz@...l:$ ./john -mask='?a?a?a' crackme -format=raw-md5-opencl
> > >
> > > What's wrong with this mask?  Why did you call it "invalid"?
> >
> > I thought that '?' can be combined with l,u,d only.
> > It would be nice to have some doc draft before cmiyc.
> > As far as I know john's mode is not fully compatibile with hashcat's.
> > Correct me if I am wrong.
>
> I guess that you're right - ?a is not implemented in Sayantan's tree
> yet.  However, our masks, unlike InsidePro's and hashcat's, also support
> regexp-like syntax that we use in the rule preprocessor.  So e.g.
> "[aeiou]" as part of a mask should work.  Lukas - you may include
> something like this in your testing of Sayantan's code.
>
> Alexander
>

I have added a documentation regarding mask mode in my repo:

https://github.com/Sayantan2048/JohnTheRipper/blob/bleeding-jumbo/doc/MASK-MODE

Please read the restrictions. I'll be updating the doc as I add anything
new.

Regards,
Sayantan

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