Recently, I was in a situation where Facebook asked me to enter some CAPTCHA code. I usually don’t have problems with it, but when I got asked to enter some characters that I don’t even have on my keyboard, I was stunned. How am I supposed to do that?
Thanks to the spam bots all over the world, today’s CAPTCHA codes are so much complicated that you can hardly read them. We, as a society, will soon need some new methods to identify as a human and not a programmed bot.
MotionCAPTCHA might be a great candidate for replacing the standard textual confirmations. The idea behind it is brilliant; you get a shape which you have to redraw. Shapes are simple, a triangle or a skewed line, basic doodles you would do on a piece of paper. The realisation is definitely great, because it doesn’t require from you to be pixel-perfect, you can make big mistakes, but as long as your mouse (or trackpad) movement looks like a shape in the picture – you’ll pass.

Draw a shape!
As Joss Crowcroft, the author of the project describes it, MotionCAPTCHA is a simple jQuery plugin based on HTML5 Canvas Harmony procedural drawing tool.
At the moment, MotionCAPTCHA is just a proof-of-concept, but the next releases will get some major enhancements and the ability to use it as a serious CAPTCHA alternative.
Take a look at this video demonstrating how MotionCAPTCHA works and try it out for yourself!
Also, read the story behind CAPTCHArt.


















why dosen't require captcha
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Likegsdfsadfasdasdf
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LikeAs a canvas web-app developer myself, this is a great implementation of html5!
Thanks for the post,
Matt
http://www.jingle-generator.com
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LikeThis is easy, yes. Even for computers! So, if it is easy for computers, how can this be called a brilliant CAPTCHA? Is not a CAPTCHA at all if it is easy for a computer to reproduce.
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LikeThis is really interesting - particularly for touch devices (trackpads, iOS, etc) but I would like to see how you might cater for people with mobility issues. My experience shows that the older generation embrace tablets with enthusiasm, but trip up on these things. They'd need to see why it's required, what to do, and how to skip/do something else if they are incapable of completing the task.
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LikeDominic Winsor Good point. Besides the main problem that this is easy for computers, so is not a captcha at all, one important thing to be considered on captchas is what to do with disabled/blind people. Usually a fallback option is needed. But if there is a fallback, it needs to be at least so secure as the main captcha. And that usually is not true.
Capthas are not sollution, they are a problem. They punish legitimate users to deal with a problem that non legitimate users may cause. We should just get rid of them all.
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