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Date: Fri, 18 May 2012 19:37:26 +0200
From: pierzi <>
Subject: Re: Performance Considerations of stdin

Hello Brad

I've been using jtr in stdin mode with maskprocessor from hashcat tools,
which seems to be one the fastest word generator...
to be honest i didn't saw any performance difference between stdin and
incremental mode.

Best regards

2012/5/18 Brad Tilley <>

> Hello John Users,
> What, if any, performance considerations are there when passing word
> candidates to JTR via stdin? I plan on doing some tests to see first-hand,
> but before doing so I wanted to ask here in case others have had some
> experience with this.
> Basically, I'm wondering if a word generation program that passed words
> into JTR via stdin would perform better than when JTR is doing both word
> mangling and hash generation, hash testing, etc all by itself.
> ehco -n word | john --sdtin
> Has anyone had experience performance testing something such as this?
> Thanks for any advice,
> Brad

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