A GRAPHICAL PASSWORD BASED AUTHENTICATION BASED SYSTEM FOR MOBILE DEVICES?

Authentication is one the most important security primitive. Password authentication is most widely used authentication mechanism. Password provides security mechanism for authentication and protection services against unwanted access to resource. To address these authentication problems, a new alternative authentication method have been proposed using picture as passwords. Graphical passwords have been designed to try to make passwords more memorable and easier for people to use and there, more secure. Using a graphical password, user click on images rather than type alphanumeric characters. In this paper, we have purposed a new hybrid graphical password based system, which is a combination of recognition and recall based techniques that offers many advantages over the existing systems and may be more convenient for the user. Our scheme is resistant to shoulder surfing attacks on graphical passwords. This scheme is proposed for mobile devices which are more handy and convenient to use than traditional desktop computer systems.