Secure Routing in MANET using EAASR

Mobile ad hoc networks is a system of wireless mobile nodes that can be freely and energetically self- organized temporary network topologies without the need of a centralized administration. Mobile ad hoc networks (MANETs) are endangered to security threats because of the innate characteristics of such networks. It is very much difficult to provide trusted and secure communications in adversarial environments. The adversaries outside a network may conclude the information about the communicating nodes or traffic flows by passive traffic observation, even if the communications are encrypted. The intermediate nodes that are nodes inside the network cannot be always trusted, since a valid node may be seized by rivals and becomes malicious. Due to this anonymous communications are important for MANETs in adversarial environments, in which the nodes identifications and routes are replaced by random numbers or pseudonyms. Anonymity is defined as the state of being unknown within a set of subjects. The MANETs in adversarial environments, in this the public and group key are initially established in the mobile nodes. There is no online security available when the network is established. A key-encrypted onion is used so that the discovered route is recorded. Group signature is used to validate the requested packet per hop. AASR experiences more problems of packet delay. AASR can be enhanced by reducing the packet delay for which unified trust management scheme is added to provide security.