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Message-ID: <20120519170752.6YHK0.960935.imail@eastrmwml301>
Date: Sat, 19 May 2012 17:07:52 -0400
From: <jfoug@....net>
To: john-dev@...ts.openwall.com
Subject: Additions to JtR rules, arbitrary characters
I have had need for a while to insert arbitrary characters into JtR rules. I have made a couple of changes in rpp.c, which will now allow this. The changes were surprising easy. This will be usable for all character and string functions:
Ax"str", $c ^c and all character class functions. Also it will work in preprocessing [] rules where a character(s) is expected.
The syntax is \xhh hh is 2 hex bytes (both are required). I needed this to be able to insert some 'hard' to do characters, such as \r \n tab and back-space, (along with others). However, it works properly for ANY characterr. \x31 is handled exactly the same as a 1.
This new syntax will allow for some 8 bit data in rules, without having to actually put high bit characters into john.conf file.
Jim.
Patch against magnum-jumbo attached.
Download attachment "JtR-Arbitrary-Bytes-in-rules-01.diff" of type "application/octet-stream" (2933 bytes)
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