International Journal of Computer Applications
Authentication is a process that ensures a user's identity. User's identity can be verified by user name and password. The textual passwords are the most widely used passwords for authentication. There is a common trend among users to choose short length passwords which are easy to memorize. However, textual passwords are vulnerable to various attacks that include shoulder-surfing, brute force attack, hidden camera and spyware attacks. So to overcome the issues related to textual passwords, the authors propose an authentication scheme called textual graphical password authentication scheme resistant to shoulder surfing.