Graphical Password as an OTP

Abstract

The most common computer authentication method is to use alphanumerical usernames and passwords. This method has been shown to have significant drawbacks. For example, users tend to pick passwords that can be easily guessed. On the other hand, if a password is hard to guess, then it is often hard to remember. To address this problem, some researchers have developed authentication methods that use pictures as passwords known as graphical password. This paper provides additional layer of security to normal textual password by using graphical password for authenticating the user. As graphical passwords are vulnerable to shoulder surfing attack hence one-time generated password is sent to users mobile. Using the instant messaging service available in internet, user will obtain the One Time Password (OTP).The OTP will be the information of the items present in the image to be clicked by the user. The users will authenticate themselves by clicking on various items in the image based on the information sent to them. Additionally, it provides accessibility to visually impaired people.

Graphical Password Authentication, An Two- Step Authentication

“…The OTP is sent to the user's mobile number from the database. [5] The authors proposed four systems that mainly focuses on graphical password. The textual-based password system is a popular authentication system since ancient times.…”

“…In this system, the user usually draws their password either on the grid or on a blank canvas. [6] The authors proposed a scheme that mainly focuses on shoulder surfing. In this system, they proposed a new click-based color password scheme called Color Click Points (CCP).…”