Analysis of Knowledge Based Authentication System Using Persuasive Cued Click Points

摘要

In general users tend to choose memorable passwords that are easy for attackers to guess, but strong system assigned passwords are hard for users to remember. In this paper focuses on the integrated evaluation of the Persuasive Cued Click Points graphical password system which including usability and security evaluation on three different level. An important goal of authentication systems is support users in selecting better passwords. Increasing security by expanding the value of effective password space. In the click-based graphical passwords, poorly chosen passwords lead to the emergence of hotspots (image portions where users are more likely to select click-points, allowing attackers to mount more successful dictionary attacks). This paper used persuasion to influence user choice is used in click-based graphical passwords for encouraging users to select more random, and hence more difficult to guess, click-points.