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Re: A password strength checker

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Re: A password strength checker

Subject: Re: A password strength checker
From: Greg Guerin <email@hidden>
Date: Thu, 7 Jan 2010 14:59:17 -0700

Martin Hewitson wrote:

Is anybody aware of a reasonable algorithm or some code that can be used to test/check the strength of a password? I'd like to give a kind of score or a color (red,yellow,green). I've looked at cracklib, but that doesn't give a score, really.

Google keywords: password strength checker code

There seem to be plenty of these available in Javascript, which doesn't seem overly difficult to translate.

The gist of most code seems to be to score different character classes (alpha, num, punct, etc.), mixed case, and the overall length. There doesn't seem to be any standard for scoring, though.

  -- GG

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