SHUFFLED INPUT GRAPHICAL PASSWORD AUTHENTICATION SCHEMES BUILT ON CAPTCHA TECHNOLOGY
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Abstract
When we consider the online service or desktop application there is major issue of security breaching. Old password schemes has some drawbacks like hacking of password, shoulder-surfing attack as far as password is concern, online password guessing attack, relay attack. Hence there must be system that provides good solution for such password cracking attacks. There are many solutions for it and various password schemes available that achieves this. The main drawback of these schemes is that users have to deal with complicated and tedious steps as far as registration and login of user is concern as its logic contains some intense AI processes. These complicated AI processes are exhaustive for common user of the system. In this paper we proposed authentication scheme which consist of graphical password based captcha challenge image. It consists of both a captcha and a graphical password schemes. We extend the use of captcha as human present recognition as well as graphical password hence it provides all benefits of captcha and make system more powerful from security point of view
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