Title: PATROL: a comprehensive reputation-based trust model

Authors: Ayman Tajeddine, Ayman Kayssi, Ali Chehab, Hassan Artail

Addresses: Electrical and Computer Engineering Department, American University of Beirut, Beirut 1107 2020, Lebanon. ' Electrical and Computer Engineering Department, American University of Beirut, Beirut 1107 2020, Lebanon. ' Electrical and Computer Engineering Department, American University of Beirut, Beirut 1107 2020, Lebanon. ' Electrical and Computer Engineering Department, American University of Beirut, Beirut 1107 2020, Lebanon

Abstract: In this paper, we present PATROL, a general and comprehensive reputation-based trust model for distributed computing. The proposed model is an enhancement over our previous model, TRUMMAR, and aims at achieving a truly unique model that incorporates most concepts that are essential to determining trust-based decisions. Among the concepts upon which the trust model is based are reputation values, direct experiences, trust in the credibility of a host to give recommendations, decay of information with time based on a dynamic decay factor, first impressions, similarity, popularity, activity, cooperation between hosts, in addition to a hierarchy of host systems. The simulations performed on this model confirm its correctness and its adaptability to different environments and situations.

Keywords: trust models; reputation; distributed computing; network security; simulation; trustworthiness.

DOI: 10.1504/IJITST.2007.014837

International Journal of Internet Technology and Secured Transactions, 2007 Vol.1 No.1/2, pp.108 - 131

Published online: 10 Aug 2007 *

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