Doodling our way to better authentication
CHI '02 Extended Abstracts on Human Factors in Computing Systems
Hash visualization in user authentication
CHI '00 Extended Abstracts on Human Factors in Computing Systems
Usability and biometric verification at the ATM interface
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Passwords you'll never forget, but can't recall
CHI '04 Extended Abstracts on Human Factors in Computing Systems
On user choice in graphical password schemes
SSYM'04 Proceedings of the 13th conference on USENIX Security Symposium - Volume 13
Increasing security and usability of computer systems with graphical passwords
ACM-SE 45 Proceedings of the 45th annual southeast regional conference
Pictures at the ATM: exploring the usability of multiple graphical passwords
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Evaluation of eye-gaze interaction methods for security enhanced PIN-entry
OZCHI '07 Proceedings of the 19th Australasian conference on Computer-Human Interaction: Entertaining User Interfaces
On user involvement in production of images used in visual authentication
Journal of Visual Languages and Computing
Guidelines for designing graphical authentication mechanism interfaces
International Journal of Information and Computer Security
Effects of a Mnemonic Technique on Subsequent Recall of Assigned and Self-generated Passwords
Proceedings of the Symposium on Human Interface 2009 on ConferenceUniversal Access in Human-Computer Interaction. Part I: Held as Part of HCI International 2009
A closer look at recognition-based graphical passwords on mobile devices
Proceedings of the Sixth Symposium on Usable Privacy and Security
MARASIM: a novel jigsaw based authentication scheme using tagging
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Can users remember their pictorial passwords six years later
CHI '11 Extended Abstracts on Human Factors in Computing Systems
A security assessment of tiles: a new portfolio-based graphical authentication system
CHI '12 Extended Abstracts on Human Factors in Computing Systems
You only live twice or "the years we wasted caring about shoulder-surfing"
BCS-HCI '12 Proceedings of the 26th Annual BCS Interaction Specialist Group Conference on People and Computers
NAPTune: fine tuning graphical authentication
Proceedings of the 3rd International Conference on Human Computer Interaction
On automated image choice for secure and usable graphical passwords
Proceedings of the 28th Annual Computer Security Applications Conference
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Pictorial passwords, where the user recognizes "target" images among "distractors", appear to have potential for improving the usability of authentication systems. We conducted three exploratory studies on the use of personal photos for authentication over a three-month period. Participants provided 8-20 photos of personal significance to them but which they believed others would not recognize. They also chose four photos to remember from a set of stock photos. Recognition accuracy for the personal photos was significantly higher than the stock photos. We also manipulated the number of target and distractor photos as well as their similarity, and we tested how well others who know the users could guess their photos. Larger numbers of distractors and greater similarity to the targets made it harder for others to guess the correct photos, while having no impact on the user's own recognition accuracy.