GRAPHICAL BASED PASSWORD USING KEYSTROKE DYNAMIC AUTHENTICATION SYSTEM FOR BANKING APPLICATION

Most of the existing authentication system has certain drawbacks for that reason graphical passwords are most preferable authentication system where users click on images to authenticate themselves. An important usability goal of an authentication system is to support users for selecting the better password. User creates memorable password which is easy to guess by an attacker and strong system assigned passwords are difficult to memorize. So researchers of modern days gone through different alternative methods and conclude that graphical passwords are most preferable authentication system. The proposed system combines the existing cued click point technique with the persuasive feature to influence user choice, encouraging user to select more random click point which is difficult to guess. We are making use of encryption for sending user id and password on server from the user’s mobile phone. Once the user is authenticated he will be shown with a graphical password screen. Using graphical based password technique user’s click on the images rather than typing alphanumeric passwords. User is shown with sequence of images with 4x4 blocks; user has to select N blocks from each image. We measure KDA (Keystroke Dynamic-based Authentication) for each images click. This project proposes a new graphical-based password KDA system for touch screen handheld mobile devices. The graphical password enlarges the password space size and promotes the KDA utility in touch screen handheld mobile devices. In addition, this paper explores a pressure feature, which is easy to use in touch screen handheld mobile devices, and applies it in the proposed system.