Open AccessProceedings Article
The design and analysis of graphical passwords
TLDR
This work proposes and evaluates new graphical password schemes that exploit features of graphical input displays to achieve better security than text-based passwords and describes the prototype implementation of one of the schemes on a personal digital assistants (PDAs) namely the Palm PilotTM.Abstract:
In this paper we propose and evaluate new graphical password schemes that exploit features of graphical input displays to achieve better security than text-based passwords. Graphical input devices enable the user to decouple the position of inputs from the temporal order in which those inputs occur, and we show that this decoupling can be used to generate password schemes with substantially larger (memorable) password spaces. In order to evaluate the security of one of our schemes, we devise a novel way to capture a subset of the "memorable" passwords that, we believe, is itself a contribution. In this work we are primarily motivated by devices such as personal digital assistants (PDAs) that offer graphical input capabilities via a stylus, and we describe our prototype implementation of one of our password schemes on such a PDA, namely the Palm PilotTM.read more
Citations
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Proceedings ArticleDOI
A fuzzy vault scheme
Ari Juels,Madhu Sudan +1 more
TL;DR: In this article, the authors describe a fuzzy vault construction that allows Alice to place a secret value /spl kappa/ in a secure vault and lock it using an unordered set A of elements from some public universe U. If Bob tries to "unlock" the vault using B, he obtains the secret value if B is close to A, i.e., only if A and B overlap substantially.
Patent
Unlocking a device by performing gestures on an unlock image
TL;DR: In this article, a device with a touch-sensitive display may be unlocked via gestures performed on the touch sensitive display, if contact with the display corresponds to a predefined gesture for unlocking the device.
Proceedings ArticleDOI
The Quest to Replace Passwords: A Framework for Comparative Evaluation of Web Authentication Schemes
TL;DR: It is concluded that many academic proposals to replace text passwords for general-purpose user authentication on the web have failed to gain traction because researchers rarely consider a sufficiently wide range of real-world constraints.
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Déjà Vu: a user study using images for authentication
Rachna Dhamija,Adrian Perrig +1 more
TL;DR: Deja Vu is a recognition-based authentication system, which authenticates a user through her ability to recognize previously seen images, which is more reliable and easier to use than traditional recall-based schemes, which require the user to precisely recall passwords or PINs.
Journal ArticleDOI
PassPoints: design and longitudinal evaluation of a graphical password system
TL;DR: PassPoints is described, a new and more secure graphical password system, and an empirical study comparing the use of PassPoints to alphanumeric passwords is reported, which shows that the graphical password users created a valid password with fewer difficulties than the alphan numeric users.
References
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Journal Article
The magical number seven, plus or minus two: some limits on our capacity for processing information
TL;DR: The theory of information as discussed by the authors provides a yardstick for calibrating our stimulus materials and for measuring the performance of our subjects and provides a quantitative way of getting at some of these questions.
Book
The magical number seven plus or minus two: some limits on our capacity for processing information
TL;DR: The theory provides us with a yardstick for calibrating the authors' stimulus materials and for measuring the performance of their subjects, and the concepts and measures provided by the theory provide a quantitative way of getting at some of these questions.
Journal ArticleDOI
Recognition memory for words, sentences, and pictures
TL;DR: This article found that median Ss were able to recognize the old stimuli in 90, 88, or 98% of the test pairs, respectively, in a test set consisting of words, sentences, or pictures.