In this article we will learn how to make CAPTCHA codes in JSP with a simple example.
In this article we will learn how to make CAPTCHA codes in JSP with a simple example.What a CAPTCHA isThe acronym CAPTCHA stands for "Completely Automated Public Turing test to tell Computers and Humans Apart". Since the dawn of the internet, people have tried to abuse or hack websites for both sport and profit. As the abuse became profitable, the scale of abuse grew using automated software (sometimes referred to as robots or bots). To prevent bots from overrunning sites with spam, fraudulent registrations, fake entries and other notorious things, publishers responded by testing users to see if they were human or not.In other words it is a type of challenge-response test used in computing to determine whether or not the user is human.A CAPTCHA looks like:
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Pro WPF: Windows Presentation Foundation in .NET 3.0