Abstract

Abstract: Authentication based on passwords is used largely in applications forcomputer security and privacy. However, human actions such a choosing wrongpasswords and inputted passwords in not secure way are regarded as” the weakestconnection” in the authentication chain. Rather than arbitrary alphanumericcharacter, users tend to select a password either short or his name related foreasy memorization. With web site applications and mobile phone apps chargingup, peoples can get access these types of application anytime and anywhere withmultiple devices. This evolution brings good convenience but also improves theprobability of exposing passwords to shoulder surfing attacks. Attackers canobserve directly or use external recording devices to collect users’credentials. To come this problem, we proposed a novel authentication systemPass Matrix, based on graphical passwords to resist shoulder surfing attacks.Many authentications methods are presented, but users are familiar with textualpassword method. Textual password methods are vulnerable to shoulder surfingand key loggers. To come this problem many other authentication system liketoken based authentication, biometric bases authentication systems, graphicalpassword methods have been proposed. However biometric bases authenticationsystems are costly and graphical password systems are not that secure andefficient.

Keywords:GraphicalPasswords, Authentication, Shoulder Surfing Attack.