To overcome this problem, PassMatrix authentication system based on graphical passwords is used to resist shoulder surfing attacks. With a one -time valid login indicator and circulative horizontal and vertical bars

Pass-matrix authentication a solution to shoulder surfing attacks with the assistance of graphical password authentication system Abstract: In today's world of quick growing technologies, Security play's a prominent role in the protection of people's vital information from varied system attacks.

exposure of user's passwords to shoulder surfing.So, to prevent the shoulder surfing attacks on user's password the new system called PassMatrix, which are based on the graphical passwords which will resist the attacks of

for new accounts and giving passwords in an insecure way are regarded as the weakest link in the authentication chain. Thus, an authentication scheme have to be designed to overcome those vulnerabilities. Alternatives to textual-based passwords various graphical password schemes have been proposed.

novel authentication system PassMatrix, based on graphical passwords to resist shoulder surfing attacks is proposed. With a one-time valid login indicator and circulative horizontal and vertical bars covering the entire scope of pass-images, PassMatrix offers no hint for attackers to figure out