文章基本信息

标题：Implementing CHC to Counter Shoulder Surfing Attack in Pass Point – Style Graphical Passwords
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作者：M. Joshuva ; T. Sudha Rani ; M. Samuel John 等
期刊名称：International Journal of Advanced Networking and Applications
电子版ISSN：0975-0290
出版年度：2010
卷号：2
期号：6
页码：906-910
出版社：Eswar Publications
摘要：Graphical passwords are an alternative to existing alphanumeric passwords. In Graphical passwords users click on images than type a long, complex password. Passpoints scheme is one of the Graphical user authentication techniques. In this method the password is represented by multiple clicks on a single image. One of the advantages with Passpoints scheme is that, a user can click on any place in the image as a click point. Graphical authentication suffers a major drawback of Shoulder-surfing. Shoulder-surfing refers to someone observing the user’s action as the user enters a password. Due to this, the user’s action can be monitored by the attacker or it can be captured using recording devices such as camera. Sobrado and Birget suggested Convex Hull Click (CHC) scheme to counter shoulder-surfing using PassIcons which is different from PassPoint scheme. In this paper, we described how CHC is implemented in Passpoint-sheme to counter Shoulder Surfing Attack.
关键词：Authentication; Convex Hull Click Scheme; Graphical Passwords; PassPoint System; Shoulder ;Surfing.