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ANSS '04 Proceedings of the 37th annual symposium on Simulation
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ICUCT'06 Proceedings of the 1st international conference on Ubiquitous convergence technology
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IPDPS'06 Proceedings of the 20th international conference on Parallel and distributed processing
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IH'04 Proceedings of the 6th international conference on Information Hiding
On flow correlation attacks and countermeasures in mix networks
PET'04 Proceedings of the 4th international conference on Privacy Enhancing Technologies
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Proceedings of the 2nd ACM workshop on Hot topics on wireless network security and privacy
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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