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NetCamo: camouflaging network traffic for QoS-guaranteed mission critical applications

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6 Author(s)
Yong Guan ; Dept. of Comput. Sci., Texas A&M Univ., College Station, TX, USA ; Xinwen Fu ; Dong Xuan ; Shenoy, P.U.
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This paper presents the general approach, design, implementation, and evaluation of NetCamo, which is a system to prevent traffic analysis in systems with real-time requirements. Integrated support for both security and real-time is becoming necessary for computer networks that support mission critical applications. This study focuses on how to integrate both the prevention of traffic analysis and guarantees for worst-case delays in an internetwork. We propose and analyze techniques that efficiently camouflage network traffic and correctly plan and schedule the transmission of payload traffic so that both security and real-time requirements are met. The performance evaluation shows that our NetCamo system is effective and efficient. By using the error between target camouflaged traffic and the observed (camouflaged) traffic as metric to measure the quality of the camouflaging, we show that NetCamo achieves very high levels of camouflaging without compromising real-time requirements

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Systems, Man and Cybernetics, Part A: Systems and Humans, IEEE Transactions on  (Volume:31 ,  Issue: 4 )