EXPLORING THE DIFFERENT TYPES OF IMAGE BASED CAPTCHA METHODSJournal: International Journal of Computer Science and Mobile Computing - IJCSMC (Vol.3, No. 8)
Publication Date: 2014-08-30
Authors : S.THANGAVELU; T. PURUSOTHAMAN;
Page : 331-338
Keywords : Captcha; bots; text; image; security; spam;
CAPTCHA is an acronym that stands for ―Completely Automated Public Turing test to tell Computers and Humans Apart‖. The primary purpose of Captcha is to differentiate the remote user in the cyber network is whether human or bot program. It is a challenge response system that acts as a security mechanism for web forms and web applications from being spammed by computer bots. Captcha is also used in all type of online interactions. The Captcha authentication process improves the security of websites and web applications by preventing the unauthorized entry of bots that generate automated content and also prevents the unauthorised entry of hackers to perform malicious activities into the websites.
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