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Date: Wed, 27 Feb 2013 20:21:14 +0100
From: Jan Starke <>
Subject: Re: Brute-forcing with regular expressions

Hi Alexander,

you're right, sorry for that. I will reannounce this tool as you suggested.

Regards, Jan

2013/2/26 Solar Designer <>:
> Hi Jan,
> On Tue, Feb 26, 2013 at 09:41:22PM +0100, Jan Starke wrote:
>> I'm currently working on a library to create values (e.g. passwords)
>> based on regular expressions. One could use this tool together with
>> john like this:
>> $ rexgen -i 'password[0-9]{2,4}' | john -pipe ....
>> You are also able to use this tool via a lua interface (possibly not
>> interesting for john) or directly throw it's c/c++ programming
>> interface.
>>  I'm looking forward to people who are going to use this tool/library,
>> try and test it and, hopefully, provide feedback regarding bugs or
>> improvement ideas to me.
>> The projects website is currently
> This is very nice, but why are you posting this to john-dev rather than
> john-users?  I think this belongs to john-users, as we're not discussing
> any source code snippets, etc. here, but rather you have an end-user
> usable tool (right?) and you're asking for feedback on that.  (Yes, you
> also have a library.)
> I suggest that you post the same message to john-users, and encourage
> further discussion there rather than here.  This will reach more people.
> Thanks,
> Alexander

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