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The Design and Analysis of Graphical Passwords

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.

Ian Jermyn, New York University

Alain Mayer, Bell Laboratories, Lucent Technologies

Fabian Monrose, New York University

Michael K. Reiter, Bell Laboratories, Lucent Technologies

Aviel Rubin, AT&T Labs – Research

BibTeX
@inproceedings {243158,
author = {Ian Jermyn and Alain Mayer and Fabian Monrose and Michael K. Reiter and Aviel Rubin},
title = {The Design and Analysis of Graphical Passwords},
booktitle = {8th USENIX Security Symposium (USENIX Security 99)},
year = {1999},
address = {Washington, D.C.},
url = {https://www.usenix.org/conference/8th-usenix-security-symposium/design-and-analysis-graphical-passwords},
publisher = {USENIX Association},
month = aug,
}
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Links

Paper: 
http://www.usenix.org/events/sec99/full_papers/jermyn/jermyn.pdf
Paper (HTML): 
http://www.usenix.org/events/sec99/full_papers/jermyn/jermyn_html/index.html
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