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Message-ID: <op.x3vsccnbzz6j51@1pqhgq1.dtn.com>
Date: Mon, 24 Aug 2015 11:34:50 -0500
From: JimF <jfoug@....net>
To: john-dev@...ts.openwall.com
Subject: Re: New single mode rules
On Mon, 24 Aug 2015 10:27:24 -0500, Frank Dittrich
<frank.dittrich@...lbox.org> wrote:
> On 08/24/2015 04:55 PM, JimF wrote:
>> # this is a good rule on larger sites where a user ID may already be
>> used,
>> # so a user simply appends numbers to create his loginID, but then uses
>> the
>> # login name he wanted as basis for password. Just strip off digits and
>> treat
>> # the base-word to some manipulation. These rules found from the Asley
>> # Madison leak. Only adds about 30 tests and only to user names that
>> have
>> # digits contained within them, and cracks quite a few.
>> /?d @?d
>
> Good rule when users are allowed to pick their own user name, but their
> favorite name has already been used by someone else.
> But I would require a min length that has to remain after removing the
> digits.
Frank, thanks for the suggestions. How about this ruleset. Note I also
added : also, which if there is mixed case, it also uses the exact base in
the mangling.
/?d @?d >4
/?d @?d >4 M [lc] Q
@?D Q >4
/?d M @?d >3 <* [:lc] $[0-9] Q
/?d M @?d >2 <- [:lc] Q Az"12"
/?d M @?d >1 [:lc] Q Az"123" <+
/?d @?d >2 M [:lc] Q d <+
(?a )?d /?d 'p Xpz0
)?a (?d /?a 'p Xpz0
I would like to get updates in, before committing to git again. Your
suggestions about length were great, as are the 3 new rules.
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