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Date: Wed, 23 Jan 2013 23:55:54 +0100
From: Frank Dittrich <>
Subject: Re: External mode filter vs max length

On 01/23/2013 11:49 PM, Frank Dittrich wrote:
> On 01/23/2013 11:43 PM, magnum wrote:
>> So there is room for improvement here, but it is specific to the new options but External mode filters in general. We could do something like this:
>> 1. All places that currently check for min/max lengths should refrain from doing so if an external filter is used.
>> 2. The external mode (not the john.conf stuff, but external.c) should enforce the limits to the *final* candidate.
> 3. If the length is greater than maximum length for the format in
> question (because the external mode didn't care about any limits), the
> password must be truncated to the format's maximum length (because many
> formats rely on this).

I just realized that's exactly what you suggested.
Time to get some sleep.


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