Inspired by an old Chinese game, Go, we have designed a new graphical password scheme, Pass-Go, in which a user selects intersections on a grid as a way to input a password. While...
When users input their passwords in a public place, they may be at risk of attackers stealing their password. An attacker can capture a password by direct observation or by record...
Susan Wiedenbeck, Jim Waters, Leonardo Sobrado, Je...
Usable security has unique usability challenges because the need for security often means that standard humancomputer-interaction approaches cannot be directly applied. An importa...
Sonia Chiasson, Alain Forget, Robert Biddle, Paul ...
Graphical password systems based on the recognition of photographs are candidates to alleviate current over-reliance on alphanumeric passwords and PINs. However, despite being bas...
The underlying issues relating to the usability and security of multiple passwords are largely unexplored. However, we know that people generally have difficulty remembering mult...
Sonia Chiasson, Alain Forget, Elizabeth Stobert, P...
Graphical passwords are an alternative to alphanumeric passwords in which users click on images to authenticate themselves rather than type alphanumeric strings. We have developed...
Susan Wiedenbeck, Jim Waters, Jean-Camille Birget,...
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 ...
We propose and examine the usability and security of Cued Click Points (CCP), a cued-recall graphical password technique. Users click on one point per image for a sequence of image...
Sonia Chiasson, Paul C. van Oorschot, Robert Biddl...
This paper presents a sketch-based password authentication system called Scribble-a-Secret as a graphical password scheme in which free-form drawings are used as a means to authen...
Mizuki Oka, Kazuhiko Kato, Yingqing Xu, Lin Liang,...
Text-based passwords alone are subject to dictionary attacks as users tend to choose weak passwords in favor of memorability, as well as phishing attacks. Many recognition-based gr...