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adding image validation on website

Vinay Singh
Ranch Hand

Joined: Dec 15, 2004
Posts: 174
Now days when you register on any site, they ask you to enter the character that appear in a image.for eg if you register your self on craiglist
you have to enter verification word.
Any idea how can we do that on jsp/jsf website ?

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Ulf Dittmer

Joined: Mar 22, 2005
Posts: 42958
That's called a "captcha"; googling for "java captcha" should point you in the right direction. There's at least one called "jcaptcha".
Tarun Yadav
Ranch Hand

Joined: Sep 20, 2007
Posts: 134
As I'd mentioned once before, on another thread asking about CAPTCHAs, you could take a look at the web based service from Carnegie Mellon, called reCAPTCHA. It's a project aimed at digitizing books while providing the CAPTCHA feature.
Vinay Singh
Ranch Hand

Joined: Dec 15, 2004
Posts: 174
thanks guys. I did not knew the name of this service.
I agree. Here's the link: http://aspose.com/file-tools
subject: adding image validation on website
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