An anonymity mechanism with reduced server-side cost in peer-to-peer networks. (2016)

• Record Type: Journal Article
• Authors: Peng, Hao; Zhao, Dandan; Han, Jianmin; Lu, Jianfeng
• Is Part Of: International journal of high performance computing and networking. Volume 9:Number 5/6(2016)
• Page Start: 409
• Page End: 416
• Publication Date: 2016
• Subjects: peer-to-peer -- P2P networks -- trustworthiness -- anonymity -- trust -- server-side cost -- peer identity -- privacy preservation -- privacy protection -- trusted third party -- TTP servers -- pseudonyms -- simulation -- malicious peers; High performance computing -- Periodicals; Computer networks -- Periodicals; High performance computing; Periodicals; 004.05
• Languages: English
• ISSNs: 1740-0562

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.