Persuasive Cued Click-Points: An Implementation of a Knowledge-based Authentication Mechanism

Abstract

Our paper presents an integrated evaluation of the Persuasive Cued Click-Points
graphical password scheme, including usability and security evaluations, and
implementation considerations. An important usability goal for knowledge-based
authentication systems is to support users in selecting passwords of higher security, in the
sense of being from an expanded effective security space. We use persuasion to influence
user choice in click-based graphical passwords, encouraging users to select more random,
and hence more difficult to guess, click-points