Captcha Project based on JAVA

Captcha project based on JAVA  project report A CAPTCHA (an acronym for “completely automated public Turing test to tell computers and humans apart”, trademarked by Carnegie Mellon University) or a CAPTCHA (Mathematical) is a type of challenge-response test used in computing to determine whether or not the user is human. The term was coined in 2000 by Luis von Ahn, Manuel Blum, Nicholas J. Hopper of Carnegie Mellon University, and John Langford of IBM. Click here to get complete JAVA projects lists.

A common type of best report requires that the user type the letters of a distorted image, sometimes with the addition of an obscured sequence of letters or digits that appears on the screen. Because the test is administered by a computer, in contrast to the standard Turing test that is administered by a human, a CAPTCHA is sometimes described as a reverse Turing test. This term, however, is ambiguous because it could also mean a Turing test in which the participants are both attempting to prove they are the computer.

Conclusion

Conclusion of Captcha project based on JAVA project report are associated with its usefulness and deciphering ability of HUMAN and BOTS. In present scenario of web world millions of website is using this protocol to minimizes the exploitation of resources.

CAPTCHA is now in frequent use in the comment areas of message boards and personal weblogs. Many bloggers claim that CAPTCHA challenges are successful in eradicating comment spam, but below a certain threshold of popularity, any other method of comment spam control should be reasonably successful — and more accessible to users with disabilities. Sites with attractive resources and millions of users will always have a need for access control systems that limit widespread abuse. At that level, it is reasonable to employ many concurrent approaches, including audio and visual CAPTCHA, to do so.

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