An anonymity mechanism with reduced server-side cost in peer-to-peer networks
by Hao Peng; Dandan Zhao; Jianmin Han; Jianfeng Lu
International Journal of High Performance Computing and Networking (IJHPCN), Vol. 9, No. 5/6, 2016

Abstract: In peer-to-peer (P2P) networks, each peer's trustworthiness is evaluated according to its pseudonym's rating values given by other peers. One of the fundamental challenges in peer-to-peer networks is to protect peers' identity privacy on the communication path. In this paper, we present an anonymity mechanism to achieve all the peers' anonymity in peer-to-peer networks by changing pseudonyms with the help of a trusted third party (TTP) server. Compared with the existing reputation using pseudonyms (RuP) mechanism, our mechanism has reduced TTP server's cost by more than 50% in terms of numbers of RSA and AES decryption operations and message overhead. Simulation results show the effectiveness of our proposed anonymity mechanism to counter malicious peers.

Online publication date: Tue, 22-Nov-2016

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