Efficient key distribution protocol for secure multicast communication

Abstract

Multicast is weaker at fabrication, denial of service, reply, repudiation, and monitoring traffic attacks than unicast or broadcast communication. In this paper, we propose the key distribution protocol which enables the secure multicast communication by getting only the group key, Key Encryption Key (KEK), and Traffic Encryption Key (TEK) using the Core Based Tree (CBT) which is able to design a more efficient security system among many multicast routing protocols. We verify the safety of proposed protocol using the Petri Net model and compare the proposed protocol with the previous method. © Springer-Verlag 2004.