文章基本信息

标题：Covert channel detection using Information Theory
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作者：Loïc Hélouët ; Aline Roumy
期刊名称：Electronic Proceedings in Theoretical Computer Science
电子版ISSN：2075-2180
出版年度：2010
卷号：51
页码：34-51
DOI：10.4204/EPTCS.51.3
出版社：Open Publishing Association
摘要：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.