Statistical covert channels through PROXY server

Authors:
Alexei Galatenko;Alexander Grusho;Alexander Kniazev;Elena Timonina
Affiliations:
Moscow State University, GSP-2, Leninskie Gory, Moscow, Russian Federation;Russian State University for Humanity, Moscow, Russian Federation;Lebedev Institute of Precise Mechanics and, Computer Technology, Russian Academy of Sciences, Moscow, Russian Federation;Russian State University for Humanity, Moscow, Russian Federation
Venue:
MMM-ACNS'05 Proceedings of the Third international conference on Mathematical Methods, Models, and Architectures for Computer Network Security
Year:
2005

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Abstract

The paper is devoted to creating a covert channel through a PROXY server. The channel is based upon data permutation in server buffer using the sequence of packets coming from the router connected to the PROXY server. The resulting data flow allows to create a statistical covert channel that transfers information by manipulating expectation and dispersion of the number of increasing pairs in the sequence of network addresses.