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Date: Thu, 27 Jun 2013 22:45:56 +0200
From: Jan Starke <>
Subject: Regular Expression mode for JtR


I'm currently fiddling around with some kind of a "regular expression mode"
for JtR. But as I am new to JtR development I am not sure of the correct
way of implementing such a new mode.

The mode depends on the rexgen library, which is available on

Attached you find my first attempt, which seems to be working. The cool
features such as resume or fork are not implemented yet, but I will do this
as far as I'm on the correct way. Could you please spend some minutes to
have a look at my code and highlight mistakes of mine.

Unfortunately, I had to change some JtR code to make it compilable with a
c++ compiler (formats.h), because I knew no other way of solving the issue
("private" is a c++ keyword). Maybe you find some other drawbacks in my
code and hopefully better alternatives :-)

Kind regards, Jan

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