Efficient and secure trust based Ad Hoc routing in MANET

A mobile ad-hoc network (MANET)[1] is a self-configuring infrastructure less network of mobile devices connected by wireless. Each device in a MANET is free to move independently in any direction, and will therefore change its links to other devices frequently. The use of wireless ad hoc networks also introduces additional security challenges that have to be dealt with. Efficient Trust based Ad Hoc Routing (ETAR) is an algorithm to provide secure routing in ad hoc mobile networks. We propose this scheme that has been drawn from a network of friends in real life scenarios. The algorithm works by sending challenges and sharing friend Lists to provide a list of trusted nodes to the source node through which data transmission finally takes place. The nodes in the friend list are rated on the basis of the amount of data transmission they accomplish and their friendship with other nodes in the network. The account of friendship of a node with other nodes in the network is obtained through the Share Your Friends process which is a periodic event in the network. As a result of this scheme of operation, the network is able to effectively [2]isolate the malicious nodes which are left with no role to play in the ad hoc network.