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On-line Detection of Encrypted Traffic Generated by Mesh-Based Peer-to-Peer Live Streaming Applications: The Case of GoalBit

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4 Author(s)
Esteves, A.F. ; Dept. of Comput. Sci., Univ. of Beira Interior, Covilha, Portugal ; Inacio, P.R.M. ; Pereira, M. ; Freire, M.M.

The number and popularity of applications developed over the Peer-to-Peer (P2P) network paradigm has been growing over the last decade, some of which are dedicated to streaming multimedia content. To deceive traffic shaping mechanisms or improve the security of the communications, these applications generate encrypted traffic or resort to several obfuscation techniques, making it difficult to manage this kind of traffic at the network level. In this work, we propose a method that explores transmission vulnerabilities of the encrypted traffic allowing its detection. Hence, an experimental test bed was created to capture a diversity of traffic, which includes flows of a widely used P2P media streaming application called Goal Bit. The collected traces of traffic were then analysed, and a set of rules was created for the SNORT network intrusion detection system, which allows the successful detection of the encrypted traffic generated by Goal Bit. The accuracy of this system was then validated experimentally.

Published in:

Network Computing and Applications (NCA), 2011 10th IEEE International Symposium on

Date of Conference:

25-27 Aug. 2011