Reputation-based trust mechanism for P2P e-commerce systems

被引：42

作者：

Jiang, Shou-Xu ^{[1
]}

Li, Jian-Zhong ^{[1
]}

机构：

[1] School of Computer Science and Technology, Harbin Institute of Technology

来源：

Ruan Jian Xue Bao/Journal of Software | 2007年 / 18卷 / 10期

关键词：

Collusion; E-commerce; P2P system; Reputation; Trust mechanism;

D O I：

10.1360/jos182551

中图分类号：

学科分类号：

摘要：

The existence of malicious users could damage the correctness and availability of the peer-to-peer (P2P) e-commerce systems. Reputation-Based trust mechanisms can recognize these malicious peers by computing the trustworthiness of the peers. The validity of a reputation-based trust mechanism relies on some well-chosen trust factors, which directly influence the computation of trust value, the accuracy of the trust mechanism, and the resistibility of the trust mechanism to various attacks. However, there are some problems in the above three aspects of existing reputation-based trust mechanisms in P2P environments, such as the selection of trust factors. This paper presents a novel reputation-based trust mechanism for P2P e-commerce systems. In this mechanism, a peer has two kinds of reputations, namely local reputations and global reputations. The local reputation of a peer relative to another peer is calculated in terms of the reference peer's rating of the transaction between the two peers, whereas the global reputation is computed based on all peers' rating of the transaction between them. To compute the local and global reputations precisely and to obtain stronger resistibility to attacks as well, many comprehensive factors in computing trust value are introduced in the mechanism. To estimate the validity of the rating given by peers, a quality model and a computational method are also employed to evaluate the objectivity and the credibility of the rating, respectively. To compute the trust value of a peer, the concept of belief factor is introduced to integrate the local reputation with the global reputation. Furthermore, a method is put forward in this paper for determining belief factor. Finally, the effectiveness and resistibility of the proposed trust mechanism are analyzed theoretically and evaluated experimentally. The experimental results show that the proposed trust mechanism outperforms existing mechanisms, and can effectively be applied to the P2P e-commerce system.

引用

页码：2551 / 2563

页数：12

共 22 条

[11]

Aberer K., Despotovic Z., Managing trust in a peer-to-peer information system, Proc. of the 10th Int'l Conf. on Information and Knowledge Management (CIKM 2001), pp. 1-7, (2001)

[12]

Kamvar S.D., Schlosser M.T., EigenRep: Reputation management in P2P networks, Proc. of the 12th Int'l World Wide Web Conf. (WWW 2003), pp. 123-134, (2003)

[13]

Dou W., Wang H.M., Jia Y., Zou P., A recommendation-based peer-to-peer trust model, Journal of Software, 15, 4, pp. 571-583, (2004)

[14]

Despotovic Z., Aberer K., Maximum likelihood estimation of peers' performance in P2P networks, Proc. of the 2nd Workshop on the Economics of Peer-to-Peer Systems, pp. 1-9, (2004)

[15]

Song S.S., Hwang K., Zhou R.F., Kwok Y.K., Trusted P2P transactions with fuzzy reputation aggregation, IEEE Internet Computing, 9, 6, pp. 24-34, (2005)

[16]

Huberman B.A., Wu F., The dynamics of reputations, Journal of Statistical Mechanics: Theory and Experiment, 4, pp. 1-17, (2004)

[17]

Josang A., Ismail R., The beta reputation system, Proc. of the 15th Bled Electronic Commerce Conf., pp. 324-337, (2002)

[18]

Wilensky U., Netlogo, (1999)

[19]

Liang Z., Shi W., Enforcing cooperative resource sharing in untrusted peer-to-peer environment, ACM Journal of Mobile Networks and Applications (MONET) (Special Issue on Noncooperative Wireless Networking and Computing), 10, 6, pp. 971-983, (2005)

[20]

Wang Y., Vassileva J., Trust and reputation model in peer-to-peer networks, Proc. of the 3rd Int'l Conf. on Peer-to-Peer Computing (P2P 2003), pp. 150-157, (2003)

← 1 2 3 →