An adaptive computational trust model for mobile ad hoc networks

ABSTRACT

While the notion of reputation is proposed to enhance an entity's trustworthiness and improve the security of a network, the problems of trust and reputation themselves, such as fair evaluation, peer assistance, efficient computation, become an important challenge in such systems. This paper addresses the issues of adaptive trust calculation and efficient reputation evaluation in wireless and mobile networks via a distributed approach. We first present the trust relationship between two mutual trustworthy nodes and then an adaptive computational trust prototype is formulated to effectively prevent malicious nodes from entering the trusted community. Through the analysis of our model's security properties, our system is proved to show how it is able to offer security protections to a dynamic but agile environment and at the same time prevent improper behavior within a community.

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INDEX TERMS

Primary Classification:
  C. Computer Systems Organization
  C.2 COMPUTER-COMMUNICATION NETWORKS
      C.2.0 General

Additional Classification:
  C. Computer Systems Organization
  C.2 COMPUTER-COMMUNICATION NETWORKS
      C.2.3 Network Operations

General Terms:
Security

Keywords:
mobile ad hoc networks, network management, trust-based computational model, wireless and mobile security