ABSTRACT

In this chapter, a novel authentication protocol is proposed, which satisfies both security and reliability requirements for group communications in ad hoc networks. The security features include identity anonymity and intracability, one-way session key/identity refreshment, and data privacy.

The reliability features include efficient denial-of-service (DoS) tolerance for forged refreshment messages and fault tolerance for lost messages recovery. The theoretical and the simulative results demonstrate that the proposed protocol is robust and efficient under severe DoS attack and poor wireless channel quality.