An efficient key agreement protocol in cluster-based MANETs

Key agreement in mobile ad hoc networks (MANETs) is a fundamental security service which provides essential protect to secure communication via open and shared media. Since MANETs are often made up of resource-restricted mobile nodes, the process of key agreement must be efficient, lightweight and minimize communication and energy consumption. This paper focuses on key agreement protocol in MANETs which is based on the Elliptic Curve Diffie-Hellman (ECDH) key agreement protocol and can prevent or resist various attacks. Due to the trust relationship among clusterheads, communication cost has been reduced eminently.