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Abstract
The Design and Analysis of Graphical Passwords
Ian Jermyn
Alain Mayer, Fabian Monrose, Michael K. Reiter
Aviel D. Rubin
New York University
Bell Labs, Lucent Technologies
AT&T Labs--Research
jermyn@cs.nyu.edu
{alain,fabian,reiter}@research.bell-labs.com
rubin@research.att.com
Abstract
Introduction
Textual Passwords with Graphical Assistance
The Draw-a-Secret (DAS) Scheme
Password Selection and Input
Application of DAS: An Encryption Tool for a PDA
Security of the DAS Scheme
The Size of the Password Space
Modeling User Choice
Memorability based on simple shapes
Memorability based on short algorithms
Lack of Knowledge of the Distribution
Prior Work
Conclusions and Future Work
Acknowledgement
References
A Picture is Worth a Thousand Words
Example DAS Passwords
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