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Secured New Generation CAPTCHA to Prevent BOTS and SPAMS
Abstract
Today the Internet is now becoming a part of our everyone lives. Many services, including Emails, Search engine, and web board on Internet, are provided with free of charge and unintentionally turns them into vulnerability services. Many software robots or, in short term, bots are developed with purpose to use such services illegally and automatically. Thus, web sites employ human authentication mechanism called Completely Automated Public Turing test to tell Computers and Human Apart (CAPTCHA) to counter this attack. Nowadays sending spam’s has turned to be a major problem in the Internet. So the spam’s are also born on the mobile phones as the form of SMS (Short Message Service) spam’s and Email Spam. In this paper a new method is proposed for filtering SMS spam’s using CAPTCHA systems. In our existing method 3D CAPTCHA are used. In our proposed method first, the picture of an object is sent as an SMS picture message, second the CAPTCHA characters are rotated in anti-clockwise and clockwise directions with fuzzy words.
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References
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