Trust Management in Ad Hoc Network for Secure DSR Routing

  • Subhrabrata Choudhury
  • Suman Deb Roy
  • Sneha Aman Singh


An ad hoc network is wireless, self-configuring network of mobile routers forming a dynamic topology. In such an environment, any malicious behavior by these routers (nodes) could greatly compromise secured routing. However, just detecting the malicious nodes is not enough to guarantee security. It should be ensured that, only trusted nodes take part in routing. In this paper, we propose a distributed dynamic trust evaluation scheme for securing DSR routing in mobile ad hoc and sensor networks. Each node periodically calculates trust for others based on its direct experience, recommendation and previous knowledge. Extensive simulation studies show that our scheme, unlike most of the previously proposed ones, efficiently adapt to fast changing trust scenario and the trust converges to values, revealed by long term behavior of the nodes. This scheme is resistant to ‘ collusion’ attack and is cautious not to punish nodes when packet is dropped due to ‘ node mobility’


ad hoc network trust management DSR secured routing collusion attack 


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Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  • Subhrabrata Choudhury
    • 1
  • Suman Deb Roy
    • 1
  • Sneha Aman Singh
    • 1
  1. 1.National Institute Of Technology, DurgapurDurgapurIndia

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