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dc.contributor.advisorDinolt, George W.
dc.contributor.advisorMichael, James Bret
dc.contributor.authorDye, Derek J.
dc.date.accessioned2012-03-14T17:46:32Z
dc.date.available2012-03-14T17:46:32Z
dc.date.issued2011-03
dc.identifier.urihttp://hdl.handle.net/10945/5724
dc.description.abstractThis thesis explores the detectability and robustness of packet length covert channels. We discovered that packet length covert channels, where a rogue user modulates the length of a Transport Control Protocol packet, can be detected while monitoring traffic of a large network. The bandwidth of these channels can be successfully estimated as well as the channels themselves detected using statistical inference. In addition, we observed that there is an inverse relationship between the volitionality in networks with respect to packet lengths and the detectability of these channels, and between packet length and channel bandwidth. For a large network like a college department, the bandwidth of a covert channel could be in the tens of megabytes over the course of a day.en_US
dc.description.urihttp://archive.org/details/bandwidthnddetec109455724
dc.format.extentxiv, 63 p. : ill. (chiefly col.) ;en_US
dc.publisherMonterey, California. Naval Postgraduate Schoolen_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.en_US
dc.subject.lcshComputer scienceen_US
dc.subject.lcshComputer networksen_US
dc.subject.lcshComputer securityen_US
dc.titleBandwidth and detection of packet length covert channelsen_US
dc.typeThesisen_US
dc.contributor.corporateNaval Postgraduate School (U.S.)
dc.contributor.departmentComputer Science
dc.identifier.oclc720416382
etd.thesisdegree.nameM.S.en_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.disciplineComputer Scienceen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US
etd.verifiednoen_US
dc.description.distributionstatementApproved for public release; distribution is unlimited.


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