S-MAODV: A trust key computing based secure Multicast Ad-hoc On Demand Vector routing protocol

The mobile ad hoc network(MANET) brings great challenges in security due to its high dynamics, link vulnerability, and complete decentralization. As an important routing protocol used in ad-hoc network, Multicast Ad-hoc On Demand Distance Vector (MAODV) protocol is not sufficient for security requirements and vulnerable to attacks induced by the hostile environment. In this paper we discuss the impact of attacks on MAODV protocol. Based on these analyses, we propose a novel secure routing protocol S-MAODV which is based on MAODV. S-MAODV takes full advantage of trusted computing technology, combined with the Secure Node Authentication and security indictor bit-set mechanism. S-MAODV is an anonymous protocol without requirement of Trusted Third Party(TTP). Moreover, we come up with an efficient secure multicast framework to overcome the potential attacks either routing discovery or maintenance phase. In the simulations, the results show that S-MAODV is still efficient in discovering secure routes compared with MAODV protocol.