There's also GD::SecurityImage which requires that you have GD installed (obviously), we've used this in a couple of production apps for CAPTCHA purposes. The usability thing is a concern tho with this Text-in-image approach, would be interested in hearing how others attack an audio alternative

In reply to Re: howto: Perl CGI, image with random scewed text for account creations by deeknow
in thread howto: Perl CGI, image with random scewed text for account creations by exodist

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