A Simple Text Based Graphical Password Scheme to Overcome Shoulder Surfing Attacks

Abstract: As conventional password schemes are harmful to shoulder surfing, most of the shoulder surfing resistant graphical password schemes have been proposed. But most of the users are more familiar with textual passwords rather than graphical passwords, however text-based graphical password schemes have been proposed. In existence there are no text-based shoulder surfing resistant graphical password schemes which are both secure and efficient enough. So, in this paper, we propose an enhanced text-based shoulder surfing resistant graphical password scheme by using pointers. The user can easily and efficiently login system in the proposed scheme. Later, we analyze the security and usability of the proposed scheme, and shows the resistance of the introduced scheme to accidental login and shoulder surfing.

Keywords: Shoulder Surfing Attacks, accidental login, usability, resistance, pointers.