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Message-ID: <d20627bfde2b366efab420185d0701a1@smtp.hushmail.com>
Date: Sun, 6 Jan 2013 01:49:22 +0100
From: magnum <john.magnum@...hmail.com>
To: john-users@...ts.openwall.com
Subject: Re: Reject words based on length without modifying rules/wordlists
On 6 Jan, 2013, at 0:07 , Rich Rumble <richrumble@...il.com> wrote:
> Say I have -w=rockyou.txt and I don't want to edit all of the "Jumbo"
> rules to reject words if less than 8. Would it be best to create a
> filter() that possibly rejects words that are 7 or less characters? Or
> should I create a new wordlist that only contains passwords of a
> certain length or more? I also realize that a rule may be appending or
> prefixing characters to words so I may want to decrease to 6 or more,
> but for now I'm generalizing at 8 in wordlist mode. I'd rather not
> edit every rule, and I'd rather not have all of these copies of my
> wordlists broken down by lengths. I'm sure I could use
> awk/sed/perl/etc... to stdin/pipe as well, but most windows users
> don't have those at the ready. I'm curious about an efficient solution
> to knowing you won't encounter passwords of less than X length. I
> didn't find much in the archives about it, so please let me know if
> I've missed something previously addressing such a question. I looked
> at "[List.External:Filter_LanMan]" but it's the opposite I want as far
> as the length part goes... and the filter_policy modes I didn't see
> length as an item they were checking for, but I have no idea what I'm
> doing so they very well could check for a certain length :)
I recently added a --min-length=N option to Jumbo unstable, that will skip (as opposed to truncate) words less than N characters. For wordlist with rules, this will happen after rules are applied. Is this what you're asking for?
magnum
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