SPTrust: Reputation aggregation method based on similarity to reputation scores of power nodes in unstructured P2P networks

Sonoko Takeda, Hiroki Ushikubo, Hiroshi Shigeno

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Reputation aggregation methods are used in unstructured peer-to-peer (P2P) networks to evaluate the trustworthiness of participating peers and to combat malicious peer's behaviors. In reputation aggregation methods, each peer collects local scores by each transaction and calculates global scores by aggregating local scores. In each transaction, global scores enable peers to interact with reliable peers. GossipTrust is proposed as a reputation aggregation method for the unstructured P2P networks. This method refers to reputation scores of power nodes, and power nodes are the peers of the high-ranking global scores. Although, there are dishonest peers that forge reputation scores of their own against other peers but get high global scores by providing authentic files in the networks. GossipTrust does not consider the influence of forged reputation score when dishonest peers exist and are selected as power nodes. In this paper, we propose a reputation aggregation method called SPTrust. SPTrust is based on the similarity to reputation scores of power nodes. In SPTrust, each peer calculates the similarity value to reputation scores of power nodes. And it can detect that dishonest peers are selected as power nodes. By using SPTrust, we can effectively decrease the influence of forged reputation score from malicious peers and solve the problem in GossipTrust. In computer simulations, SPTrust has been shown to decrease the number of inauthentic files downloads compared with GossipTrust.

Original languageEnglish
Title of host publicationProceedings - 2013 8th International Conference on Broadband, Wireless Computing, Communication and Applications, BWCCA 2013
Pages265-272
Number of pages8
DOIs
Publication statusPublished - 2013 Dec 1
Event2013 IEEE 8th International Conference on Broadband, Wireless Computing, Communication and Applications, BWCCA 2013 - Campiegne, France
Duration: 2013 Oct 282013 Oct 30

Publication series

NameProceedings - 2013 8th International Conference on Broadband, Wireless Computing, Communication and Applications, BWCCA 2013

Other

Other2013 IEEE 8th International Conference on Broadband, Wireless Computing, Communication and Applications, BWCCA 2013
CountryFrance
CityCampiegne
Period13/10/2813/10/30

Keywords

  • Peer-to-peer
  • Reputation aggregation method
  • Security
  • Trust

ASJC Scopus subject areas

  • Computer Networks and Communications

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  • Cite this

    Takeda, S., Ushikubo, H., & Shigeno, H. (2013). SPTrust: Reputation aggregation method based on similarity to reputation scores of power nodes in unstructured P2P networks. In Proceedings - 2013 8th International Conference on Broadband, Wireless Computing, Communication and Applications, BWCCA 2013 (pp. 265-272). [6690897] (Proceedings - 2013 8th International Conference on Broadband, Wireless Computing, Communication and Applications, BWCCA 2013). https://doi.org/10.1109/BWCCA.2013.49