A Secure Routing Protocol Based on D-S Evidence Theory in Ad Hoc Networks

We present an anonymous and efficiently routing protocol AE-ARAN for MANET based on Dempster-Shafer(D-S) evidence theory. A trust evaluation model which is a system of trust valuation is given. It could discover malicious actions in networks dynamically and timely and isolate them efficiently, and resist attacks to some extent and improve the reliability, robustness and security of the over all network effectively. So it could provide a secure network environment for routing establishment. Meanwhile, the ARAN is modified and we present the anonymous identity of nodes by the way of the Hash routing, which stored in routing table. It can effectively ensure the anonymous of the networks and avoid launching a routing request repeatedly. Based on the Diffie-Hellman key agreement arithmetic, the protocol set up the key agreement at the time of routing. Theoritical analysis and simulation results show that the proposed scheme can detect and isolate malicious nodes efficiently and resist attacks. The protocol can achieve the anonymous and improve the efficiency and security of the all network.