Covert channel detection using Information Theory

Details Covert channel detection using Information Theory Covert channel detection using Information Theory

2011-02-28

arxiv.org/abs/1102.5586v1

EPTCS 51, 2011, pp. 34-51

Computer Science

Cryptography and Security

In Proceedings SecCo 2010, arXiv:1102.5161

Scientific paper

10.4204/EPTCS.51.3

This paper presents an information theory based detection framework for covert channels. We first show that the usual notion of interference does not characterize the notion of deliberate information flow of covert channels. We then show that even an enhanced notion of "iterated multivalued interference" can not capture flows with capacity lower than one bit of information per channel use. We then characterize and compute the capacity of covert channels that use control flows for a class of systems.

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