Poster: on quantitative information flow metrics
Proceedings of the 18th ACM conference on Computer and communications security
Calculating bounds on information leakage using two-bit patterns
Proceedings of the ACM SIGPLAN 6th Workshop on Programming Languages and Analysis for Security
Min-Entropy leakage of channels in cascade
FAST'11 Proceedings of the 8th international conference on Formal Aspects of Security and Trust
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Belief and vulnerability have been proposed recently to quantify information flow in security systems. Both concepts stand as alternatives to the traditional approaches founded on Shannon entropy and mutual information, which were shown to provide inadequate security guarantees. In this paper we unify the two concepts in one model so as to cope with (potentially inaccurate) attackers' extra knowledge. To this end we propose a new metric based on vulnerability that takes into account the adversary's beliefs.