doi: 10.4304/jsw.9.5.1062-1070
Trust Management in Peer-to-Peer Networks
- 1 School of Information, Beijing Wuzi University, Beijing, China
- 2 Department of Computer Engineering, Beijing Information Technology College, Beijing, China
Abstract
In recent years, various applications of Peer-to-Peer (P2P) computing have been widely used because of its unique advantages, which have played an important role in commerce, communications and other fields. The P2P system is essentially a distributed system, without central servers. Each peer is both client and server, who have the same status. However, some features of P2P networks, such as autonomy, dynamic, and heterogeneity lead to an important problem, namely unreliable quality of service. Unreliable quality of service is usually presented as providing false or unreliable service, impacting customer satisfaction. The establishment of trust models which evaluates capabilities of peers can measure the service capacity of a peer, and identify malicious behavior, thereby reducing the risk of interaction and being an effective technique to ensure the overall availability of P2P networks. A trust model named METrust in P2P networks based on the recommendation is proposed. In METrust, a peer selects recommendation peers whose evaluation criteria are similar, and evaluation criteria of peers are determined through the AHP method (Analytic Hierarchy Process). Each peer in the network has a unique credibility of recommendation, and two trust parameters for updating the credibility of recommendation are introduced, namely updating range and updating strength. METrust proposes algorithms to compute the trust of peers. Simulations show that, the trust model METrust can identify malicious peers, and improve the quality of service in P2P networks effectively.
Keywords
- Peer-to-Peer;
- trust;
- recommendation;
- eva
How to Cite
Zhen Yu, Jie Zhu, Guicheng Shen, and Haiyan Liu, "Trust Management in Peer-to-Peer Networks," Journal of Software, vol. 9, no. 5, pp. 1062-1070, 2014. https://doi.org/ 10.4304/jsw.9.5.1062-1070
Copyright & License
Copyright © 2014 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).