Novel Multicast Key Management Scheme for PMIPv6-Based LTE Networks

Abstract

Multicast services grow up quickly and thus they urgently call for a secure mechanism to provide the confidentiality and privacy of communications. Recently, multicast issues in Proxy Mobile IPv6 (PMIPv6) networks have generated a great deal of interest among researchers, and several multicast schemes had been proposed. However, these schemes do not take security issues into account. In an attempt to fill that research gap, we propose a dual multicast key management scheme for secure group communications in PMIPv6-based Long Term Evolution (LTE) networks. This scheme satisfies the requirements for forward and backward secrecy. Moreover, the performance analysis demonstrates that the proposed scheme incurs low communication and storage costs. Finally, we provide guidelines for Internet service providers (ISPs) to select the suitable multicast key management architecture.