adding image validation on website

[Vinay Singh]

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
https://accounts.craigslist.org/login/signup
you have to enter verification word.
Any idea how can we do that on jsp/jsf website ?

[Ulf Dittmer]

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]

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]

thanks guys. I did not knew the name of this service.