Communications of the ACM
Communications of the ACM
Password security: a case history
Communications of the ACM
Usability and biometric verification at the ATM interface
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
UNIX Password Security - Ten Years Later
CRYPTO '89 Proceedings of the 9th Annual International Cryptology Conference on Advances in Cryptology
CHI '03 Extended Abstracts 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
PassPoints: design and longitudinal evaluation of a graphical password system
International Journal of Human-Computer Studies - Special isssue: HCI research in privacy and security is critical now
Déjà Vu: a user study using images for authentication
SSYM'00 Proceedings of the 9th conference on USENIX Security Symposium - Volume 9
On user choice in graphical password schemes
SSYM'04 Proceedings of the 13th conference on USENIX Security Symposium - Volume 13
VIP: a visual approach to user authentication
Proceedings of the Working Conference on Advanced Visual Interfaces
Password management strategies for online accounts
SOUPS '06 Proceedings of the second symposium on Usable privacy and security
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
A second look at the usability of click-based graphical passwords
Proceedings of the 3rd symposium on Usable privacy and security
Do background images improve "draw a secret" graphical passwords?
Proceedings of the 14th ACM conference on Computer and communications security
Human-seeded attacks and exploiting hot-spots in graphical passwords
SS'07 Proceedings of 16th USENIX Security Symposium on USENIX Security Symposium
Order and entropy in picture passwords
GI '08 Proceedings of graphics interface 2008
Exploring the feasibility of video mail for illiterate users
AVI '08 Proceedings of the working conference on Advanced visual interfaces
Centered discretization with application to graphical passwords (full paper)
UPSEC'08 Proceedings of the 1st Conference on Usability, Psychology, and Security
Use Your Illusion: secure authentication usable anywhere
Proceedings of the 4th symposium on Usable privacy and security
Action-based user authentication
International Journal of Electronic Security and Digital Forensics
Collective information practice: emploring privacy and security as social and cultural phenomena
Human-Computer Interaction
Influencing users towards better passwords: persuasive cued click-points
BCS-HCI '08 Proceedings of the 22nd British HCI Group Annual Conference on People and Computers: Culture, Creativity, Interaction - Volume 1
Multiple password interference in text passwords and click-based graphical passwords
Proceedings of the 16th ACM conference on Computer and communications security
The Impact of Image Choices on the Usability and Security of Click Based Graphical Passwords
ISVC '09 Proceedings of the 5th International Symposium on Advances in Visual Computing: Part II
Digital rights management using a master control device
ASIAN'07 Proceedings of the 12th Asian computing science conference on Advances in computer science: computer and network security
The effect of baroque music on the PassPoints graphical password
Proceedings of the ACM International Conference on Image and Video Retrieval
A security class project in graphical passwords
Journal of Computing Sciences in Colleges
Purely automated attacks on passpoints-style graphical passwords
IEEE Transactions on Information Forensics and Security
Exploring usability effects of increasing security in click-based graphical passwords
Proceedings of the 26th Annual Computer Security Applications Conference
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
On designing usable and secure recognition-based graphical authentication mechanisms
Interacting with Computers
CMS'10 Proceedings of the 11th IFIP TC 6/TC 11 international conference on Communications and Multimedia Security
Can background baroque music help to improve the memorability of graphical passwords?
ICIAR'10 Proceedings of the 7th international conference on Image Analysis and Recognition - Volume Part II
Designing textual password systems for children
Proceedings of the 11th International Conference on Interaction Design and Children
Graphical passwords: Learning from the first twelve years
ACM Computing Surveys (CSUR)
Goldilocks and the two mobile devices: going beyond all-or-nothing access to a device's applications
Proceedings of the Eighth Symposium on Usable Privacy and Security
An enhanced drawing reproduction graphical password strategy
Journal of Computer Science and Technology - Special issue on Natural Language Processing
Graphical password authentication using cued click points
ESORICS'07 Proceedings of the 12th European conference on Research in Computer Security
Evaluating the effect of tolerance on click-draw based graphical password scheme
ICICS'12 Proceedings of the 14th international conference on Information and Communications Security
A study of user password strategy for multiple accounts
Proceedings of the third ACM conference on Data and application security and privacy
Picassopass: a password scheme using a dynamically layered combination of graphical elements
CHI '13 Extended Abstracts on Human Factors in Computing Systems
Time evolving graphical password for securing mobile devices
Proceedings of the 8th ACM SIGSAC symposium on Information, computer and communications security
Security implications of password discretization for click-based graphical passwords
Proceedings of the 22nd international conference on World Wide Web
Quantifying the security of graphical passwords: the case of android unlock patterns
Proceedings of the 2013 ACM SIGSAC conference on Computer & communications security
On the security of picture gesture authentication
SEC'13 Proceedings of the 22nd USENIX conference on Security
International Journal of Security and Networks
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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 one such system, called PassPoints, and evaluated it with human users. The results of the evaluation were promising with respect to rmemorability of the graphical password. In this study we expand our human factors testing by studying two issues: the effect of tolerance, or margin of error, in clicking on the password points and the effect of the image used in the password system. In our tolerance study, results show that accurate memory for the password is strongly reduced when using a small tolerance (10 x 10 pixels) around the user's password points. This may occur because users fail to encode the password points in memory in the precise manner that is necessary to remember the password over a lapse of time. In our image study we compared user performance on four everyday images. The results indicate that there were few significant differences in performance of the images. This preliminary result suggests that many images may support memorability in graphical password systems.