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TISSEC
2008
106views more  TISSEC 2008»
13 years 11 months ago
On predictive models and user-drawn graphical passwords
In commonplace text-based password schemes, users typically choose passwords that are easy to recall, exhibit patterns, and are thus vulnerable to brute-force dictionary attacks. ...
Paul C. van Oorschot, Julie Thorpe
CCS
2007
ACM
14 years 5 months ago
Do background images improve "draw a secret" graphical passwords?
Draw a secret (DAS) is a representative graphical password scheme. Rigorous theoretical analysis suggests that DAS supports an overall password space larger than that of the ubiqu...
Paul Dunphy, Jeff Yan
ICC
2008
IEEE
134views Communications» more  ICC 2008»
14 years 6 months ago
Secret Little Functions and Codebook for Protecting Users from Password Theft
—In this paper, we discuss how to prevent users’ passwords from being stolen by adversaries. We propose differentiated security mechanisms in which a user has the freedom to ch...
Yang Xiao, Chung-Chih Li, Ming Lei, Susan V. Vrbsk...