Efficient and Scalable Group Key Management in Wireless Networks

Abstract

Multicast is an efficient paradigm to support group communications, as it reduces the traffic by simultaneously delivering a single stream of information to multiple receivers on a large scale. Along with widespread deployment of wireless networks and fast improving capabilities of mobile devices, it is reasonable to believe that the integration of wireless and multicast will result in enormous benefits. Before users can enjoy the flexibility and efficiency of wireless multicast, security must be achieved. The core issue of wireless multicast security is access control, which means that only authorized users can participate in the group communications.