Title: Trustworthy acquaintances in Peer-to-Peer (P2P) overlay networks

Authors: Soichi Sawamura, Ailixier Aikebaier, Valbona Barolli, Makoto Takizawa

Addresses: Faculty of Science and Technology, Department of Computers and Information Science, Seikei University, 3-3-1 Kichijoji-kitamachi, Musashino-shi, Tokyo 180-8633, Japan. ' Faculty of Science and Technology, Department of Computers and Information Science, Seikei University, 3-3-1 Kichijoji-kitamachi, Musashino-shi, Tokyo 180-8633, Japan. ' Faculty of Science and Technology, Department of Computers and Information Science, Seikei University, 3-3-1 Kichijoji-kitamachi, Musashino-shi, Tokyo 180-8633, Japan. ' Faculty of Science and Technology, Department of Computers and Information Science, Seikei University, 3-3-1 Kichijoji-kitamachi, Musashino-shi, Tokyo 180-8633, Japan

Abstract: In fully distributed Peer-to-Peer (P2P) overlay networks, each peer has to obtain information on objects distributed through communicating with its acquaintance peers. An acquaintance might hold obsolete information owing to the propagation delay and faults of peers. Hence, a peer has to collect correct object information only from trustworthy acquaintances. The subjective trustworthiness of an acquaintance is obtained by directly interacting with the acquaintance. The objective trustworthiness of an acquaintance is obtained by collecting the subjective trustworthiness from other peers. If a peer is confident of its own subjective trustworthiness, the peer takes the subjective trustworthiness. Otherwise, the peer takes the objective one. We evaluate how the subjective trustworthiness changes in change of satisfiablity of an acquaintance.

Keywords: P2P overlay networks; subjective trustworthiness; satisfiability; trustworthy acquaintances; peer-to-peer; trust; obsolete information; object information; objective trustworthiness.

DOI: 10.1504/IJBIDM.2011.038273

International Journal of Business Intelligence and Data Mining, 2011 Vol.6 No.1, pp.42 - 54

Published online: 22 Apr 2015 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article