Authentication Schemes for Session Passwords using Color and Images
M SREELATHA1, M SHASHI2, M ANIRUDH1,MD SULTAN AHAMER1, V MANOJ KUMAR1
1Department of Computer Science and Engineering, R.V.R. & J.C. College of Engineering, Guntur, A.P.
2Department of Computer Science and System Engineering, Andhra University College of Engineering, Visakhapatnam, A.P
Abstract:
Textual passwords are the most common method used for authentication. But textual passwords are vulnerable to eves dropping, dictionary attacks, social engineering and shoulder surfing. Graphical passwords are introduced as alternative techniques to textual passwords. Most of the graphical schemes are vulnerable to shoulder surfing. To address this problem, text can be combined with images or colors to generate session passwords for authentication. Session passwords can be used only once and every time a new password is generated. In this paper, two techniques are proposed to generate session passwords using text and colors which are resistant to shoulder surfing. These methods are suitable for Personal Digital Assistants.
Index Terms:
Authentication, session passwords, shoulder surfing
Original Source Link : http://airccse.org/journal/nsa/0511ijnsa08.pdf
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