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Peer-to-Peer VoIP (Voice over IP) networks, exemplified by Skype, are becoming increasingly popular due to their significant cost advantage and richer call forwarding features than traditional public switched telephone networks. One of the most important features of a VoIP network is privacy (for VoIP clients). Unfortunately, most peer-to-peer VoIP networks neither provide personalization nor guarantee a quantifiable privacy level. In this project a novel flow analysis attacks to demonstrate the vulnerabilities of peer-to-peer VoIP networks and a method to overcome these attacks have been proposed.
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