A Secure Dominating set based routing and key management scheme in Mobile Ad hoc Network

In Mobile Ad hoc Network (MANET) nodes communicate with each other using shared wireless medium. Due to their distributed nature and dynamic topology, MANET is less secured than wired network. To enhance the security of MANET, it is important to establish routing path based on the trustworthiness of each node in the network. Most existing routing protocols in MANET mainly focus at finding efficient routing path. To deal with the effect of malicious node, trustworthiness of node can be taken into consideration in routing decision making. A routing protocol based on distributed dominating set based clustering algorithm is presented in this paper. The dominator set is formed based on the trust ability of the node and probability of future contact of the node in the network. This paper present a adaptive neuro fuzzy logic controller to evaluate the trust level of each node and a composite key management technique used for effective key management within cluster. Simulation results show that proposed routing protocol provides efficient routing path that bypass malicious nodes in the network. Key-Words: Mobile Ad hoc network, dominating set, fuzzy controller, trust valuation, key management, secure routing.