A Research on Authentication Scheme for Session Passwords with Colour Pairs and Grid Compared with OTP

To provide the security mainly authentication and authorisation is given to the system. For that purpose mostly textual passwords are being used. Now a day’s graphical password are also available. The password schemes those are being used by now Days are mostly textual password and the graphical password (pattern matching), textual passwords are vulnerable to eves dropping, dictionary attacks, social engineering and shoulder surfing. Graphical passwords are introduced as alternative techniques to textual passwords. But Most of the graphical schemes are vulnerable to shoulder surfing. This paper shows the study of the available authentication schemes for session password.