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Topic: New Registration CAPTCHA In Place (Read 89 times)
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Porter
[Wumpa]
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New Registration CAPTCHA In Place
« on: July 15, 2006, 07:24:42 PM »
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With the help of one of my college professors, I've implemented a CAPTCHA on the Forum Registration page to try to stop the recent rash of bot-registrations and forum spamming. This CAPTCHA takes advantage of certain "hard" Computer Science problems, and should prove to be enough to stop the bots for now. The really unique part of this CAPTCHA however, is that it doesn't rely on images like most systems do (which are of course impossible for visually impaired users to use).
Of course, assuming an enterprising spammer reverse engineers the algorithm used (it wouldn't be THAT hard), the system is easily extensible to add new "questions." This should at least hold us over until I can get the forum software upgraded to SMF. 
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| « Last Edit: July 15, 2006, 07:25:34 PM by Porter » |
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[Wumpa] Porter
--Silent, professional, lethal... sometimes.
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Re:New Registration CAPTCHA In Place
« Reply #1 on: July 16, 2006, 04:31:11 AM »
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I think you're overestimating the basic maths skills of the average punter
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Porter
[Wumpa]
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Re:New Registration CAPTCHA In Place
« Reply #2 on: July 16, 2006, 09:35:31 AM »
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Math is something computers are good at: interpreting natural language is where they have the problem. A computer can understand "462" WAAAY more easily than "four hundred and sixty two."
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[Wumpa] Porter
--Silent, professional, lethal... sometimes.
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Grounded
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Re:New Registration CAPTCHA In Place
« Reply #3 on: July 17, 2006, 10:35:25 AM »
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I know - I was referring to the peons behind the keyboard
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