DocumentCode :
2234471
Title :
An Effective Risk Avoidance Scheme for the EigenTrust Reputation Management System
Author :
Nishikawa, Takuya ; Fujita, Satoshi
Author_Institution :
Dept. of Inf. Eng., Hiroshima Univ., Hiroshima, Japan
fYear :
2010
fDate :
17-19 Nov. 2010
Firstpage :
36
Lastpage :
43
Abstract :
Peer-to-Peer (P2P) systems have attracted considerable attention in recent years, as a key technology to realize scalable, dependable network services. However, because of its high anonymity, P2P systems involve several flaws such as the weakness against malicious attacks by anonymous peers. In this paper, we propose a method to evaluate the trustfulness of each peer by explicitly taking into account the reliability of mutual evaluations. The proposed method is an improvement of the EigenTrust algorithm proposed by Kamvar et al. which calculates a global trust vector consistent with the observed local trust vectors under the weighted sum in a linear space. The performance of the proposed method is evaluated by simulation. The result of simulations indicates that the proposed method identifies a large subset of reliable peers with sufficiently small number of message transmissions compared with previous schemes including the original EigenTrust.
Keywords :
computer network management; computer network reliability; computer network security; data communication; peer-to-peer computing; P2P systems; effective risk avoidance scheme; eigen trust reputation management system; global trust vector consistent; malicious attacks; message transmissions; peer to peer systems; reliability; P2P; Reliability; Reputation;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Networking and Computing (ICNC), 2010 First International Conference on
Conference_Location :
Higashi-Hiroshima
Print_ISBN :
978-1-4244-8918-3
Electronic_ISBN :
978-0-7695-4277-5
Type :
conf
DOI :
10.1109/IC-NC.2010.28
Filename :
5695211
Link To Document :
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