GRAPHICAL PASSWORD AUTHENTICATION SYSTEM

GRAPHICAL PASSWORD AUTHENTICATION SYSTEM

Achuthram, S. Samrat, P. Nithish

Dr. G. PRASAD ACHARYA (Guide)

Sreenidhi Institute of Science and Technology

Hyderabad

ABSTRACT:

Computer security depends largely on passwords to authenticate human users from attackers. The most common computer authentication method is to use alphanumerical usernames and passwords. However, 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. In this paper, we conduct a comprehensive survey of the existing graphical password techniques and provide a possible theory of our own. 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. In this paper, we conduct a comprehensive survey of the existing graphical password techniques.