PARTIAL-REVOCATION BASED TRUST MANAGEMENT IN AD HOC NETWORKS

Open Access
Author:
Patankar, Harshal D
Graduate Program:
Computer Science
Degree:
Master of Science
Document Type:
Master Thesis
Date of Defense:
November 16, 2011
Committee Members:
  • Chitaranjan Das, Thesis Advisor
  • Sencun Zhu, Thesis Advisor
Keywords:
  • IDS
  • Trusted Authority
  • TA
  • Trust Management
  • Ad Hoc Networks
  • Partial Revocation
  • Mutual Revocation
  • Intrusion Detection System
Abstract:
Although it has been well understood that trust is a fuzzy value, traditional trust revocation has always been a binary operation. When studying how to revoke trust, we consider the fuzziness of trust and take two approaches. First, based on a node's fuzzy trust value, its network privileges are modulated under a model of partial revocation. Second, we explore the idea of mutual trust revocation and propose partial mutual trust revocation in the context of ad hoc networks. We design the trust updation policies as well as bonus functions for partial mutual revocation. Through both analysis and simulations, we evaluate the effectiveness of partial revocation under different attack strategies and report its performance in terms of revocation immediacy, revocation accuracy and abuse resistance.