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Date: Mon, 7 Oct 2019 11:18:21 -0400
From: Matt Weir <>
Subject: Re: Prince help. Any way to remove repeats?

There is no way to limit repeats of the same word in PRINCE. For your
particular use-case you'll probably need to either code up a custom
EXTERNAL mode for JtR or write a script to perform the guess generation and
pipe it into JtR using the -stdin option. The advantage of writing the
logic in External mode is that it'll be easier to do things like get status
outputs of a running session. Also it would make it easier for other people
to make use of this functionality as well if you want to contribute it back
to the community.

Documentation about EXTERNAL mode is here:

 If you find another program that will generate guesses the way you want
though, you can pipe it into JtR using the following command:


Cheers, and good luck!

On Mon, Oct 7, 2019 at 10:22 AM Sebastian Hudson <>

> Hi, I’m new to all this so any help or a point in the right direction
> would be great!
> I’m just wondering if there’s a way to stop Prince from trying repeats of
> words in my wordlist?
> For example only trying:
> CatDogCow
> CatCowDog
> DogCatCow
> DogCowCat
> CowCatDog
> CowDogCat
> and ignoring:
> CatCatCat
> CatCatDog
> CatDogCat
> CatDogDog
> etc…
> Is there something I need to add or could I change something in john.conf?
> Thanks heaps
> /Seb

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