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Publication Detail
A Game Theoretic Analysis of the Utility of Reputation Management
  • Publication Type:
    Report
  • Authors:
    Ahmed M, Hailes S
  • publication date:
    2008
  • Report number:
    RN/08/05
  • Series name:
    UCL Computer Science Research Notes
  • Keywords:
    reputation magement, time, game theory
Abstract
Reputation-management is gaining credibility as a technique that augments conventional cryptographic approaches to securing wireless sensor networks, since these tend to be heavyweight and rely on central control, both of which do not necessarily fit well with such an application domain. The proposed role of reputation management is to provide analysis of the behaviour of nodes/agents and to distribute this information so that nodes/agents judged to be acting against the interests of a community can be caught in time and their effects limited. In this paper, we question some of the assumptions made about the suitability of reputation-management as a decision making tool and highlight its limitations with regard to the incentives required to realise the benefits that are claimed for it. Moreover, we show that these benefits may not be realisable in reality without enforcing tight constraints on the behaviour of agents and on environmental features of systems.
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