PTrust: Provisional Value based trust for reputation aggregation in peer-to-peer networks

Takashi Yajima, Asaki Matsumoto, Hiroshi Shigeno

研究成果: Conference contribution

7 被引用数 (Scopus)

抄録

Reputation aggregation methods are used in unstructured peer-to-peer(P2P) networks to evaluate the trust-worthiness 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. Using the global scores, individual peer can interact with reliable peers. GossipTrust is proposed as a reputation aggregation method for the unstructured P2P networks, and it can avoid transacting with peers with simple malicious behavior. Although, there are tactical malicious peers, which provide not only inauthentic files but also authentic files in each file request in the networks. GossipTrust has a problem that these peers are able to provide inauthentic files effectively. In this paper, we propose a reputation aggregation method called "Trust Based on Provisional Value(PTrust)." PTrust enables peers to send occasional messages to lower the global scores of malicious peers as soon as they receive inauthentic files. By using PTrust, we can effectively combat tactical malicious peers and solve the problem in GossipTrust. In computer simulations, PTrust has been shown to decrease the number of inauthentic file downloads compared with GossipTrust.

本文言語English
ホスト出版物のタイトルProceedings of 2011 1st International Symposium on Access Spaces, ISAS 2011
ページ180-185
ページ数6
DOI
出版ステータスPublished - 2011
イベント2011 1st International Symposium on Access Spaces, ISAS 2011 - Yokohama, Japan
継続期間: 2011 6 172011 6 19

出版物シリーズ

名前Proceedings of 2011 1st International Symposium on Access Spaces, ISAS 2011

Other

Other2011 1st International Symposium on Access Spaces, ISAS 2011
国/地域Japan
CityYokohama
Period11/6/1711/6/19

ASJC Scopus subject areas

  • コンピュータ ネットワークおよび通信
  • 電子工学および電気工学

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