An Efficient Authentication Protocol for Security in Mobile Ad Hoc Networks

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Mobile Ad hoc NETworks (MANETs) is a collection of mobile nodes that communicate by forming a network dynamically that lacks fixed infrastructure and centralized control. Secure routing is of at most importance in such networks because of dynamically changing topologies, absence of centralized monitoring points and lack of clear lines of defense. This paper discusses a fool proof key exchange mechanism and a network model to protect the network containing malicious nodes. The reputation of a node increases as long as the node transfers the message properly and decreases otherwise. Moreover, it has minimum computation and communication overhead which makes it viable.