Routing Mechanism for Mobile Ad Hoc Networks with Improved Security Features

Without a fixed topology collection of mobile nodes forming an instant network is called MANET. The nodes are randomly and unpredictably mobile can move out or join in the network freely. In the communication field the importance of MANET are very high because of the self-organizing ability of the networks. These networks are very attractive in military applications because of rapid deployment and reconfiguration capabilities. In tactical communications with unfavorableenvironments, security sensitive operations are essential. MANET is an open environment and it is susceptible to many security attacks due to dynamic topology and lack of centralized monitoring authority. Secure routing protocols conceal the identities about the route, source and destination to provide security and privacy from the attacks. Both active and passive attackers can affect the performance of the routing protocols. Limited resource is an inherent problem in MANETs, in which each node operates under an energy constraint situation. The scalability and energy efficiency of existing secure routing protocols are poor while considering the delays and overhead introduced by the cryptographic methods, and also the cost of implementation is a major drawback.

For providing high degree of security against both passive and active attacks for the routingpath and nodes in the network with low cost and high efficiency, this paperintroduced an algorithm. This algorithm can select a secure and non-traceable route for the data transmission and performs some security methods for the source and destination node anonymities.