PTrust

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

Takashi Yajima, Asaki Matsumoto, Hiroshi Shigeno

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

7 Citations (Scopus)

Abstract

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.

Original languageEnglish
Title of host publicationProceedings of 2011 1st International Symposium on Access Spaces, ISAS 2011
Pages180-185
Number of pages6
DOIs
Publication statusPublished - 2011
Event2011 1st International Symposium on Access Spaces, ISAS 2011 - Yokohama, Japan
Duration: 2011 Jun 172011 Jun 19

Other

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

Fingerprint

Peer to peer networks
Agglomeration
Computer simulation

Keywords

  • Peer-to-peer
  • reputation aggregation method
  • security
  • trust

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Cite this

Yajima, T., Matsumoto, A., & Shigeno, H. (2011). PTrust: Provisional Value based trust for reputation aggregation in peer-to-peer networks. In Proceedings of 2011 1st International Symposium on Access Spaces, ISAS 2011 (pp. 180-185). [5960944] https://doi.org/10.1109/ISAS.2011.5960944

PTrust : Provisional Value based trust for reputation aggregation in peer-to-peer networks. / Yajima, Takashi; Matsumoto, Asaki; Shigeno, Hiroshi.

Proceedings of 2011 1st International Symposium on Access Spaces, ISAS 2011. 2011. p. 180-185 5960944.

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

Yajima, T, Matsumoto, A & Shigeno, H 2011, PTrust: Provisional Value based trust for reputation aggregation in peer-to-peer networks. in Proceedings of 2011 1st International Symposium on Access Spaces, ISAS 2011., 5960944, pp. 180-185, 2011 1st International Symposium on Access Spaces, ISAS 2011, Yokohama, Japan, 11/6/17. https://doi.org/10.1109/ISAS.2011.5960944
Yajima T, Matsumoto A, Shigeno H. PTrust: Provisional Value based trust for reputation aggregation in peer-to-peer networks. In Proceedings of 2011 1st International Symposium on Access Spaces, ISAS 2011. 2011. p. 180-185. 5960944 https://doi.org/10.1109/ISAS.2011.5960944
Yajima, Takashi ; Matsumoto, Asaki ; Shigeno, Hiroshi. / PTrust : Provisional Value based trust for reputation aggregation in peer-to-peer networks. Proceedings of 2011 1st International Symposium on Access Spaces, ISAS 2011. 2011. pp. 180-185
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