International Journal of Scientific Research Engineering &Technology (IJSRET)
There are numbers of methods used for authentication purpose; textual password is most common one. But these passwords are susceptible to the various attacks like glossary attack, shoulder surfing, eves dropping. Later graphical password scheme introduced but the graphical passwords have their own disadvantages like they require more time to authenticate and the usability issues. Thus the authors introduced a session password scheme in which the passwords are used only once for each session and when session is completed the password is no longer in use.