Identity-based Key Agreement for Secure Multicast
Futai Zhang · Jisuanji gongcheng · 2007
Efficient key management is a difficult task in secure multicast.This paper proposes a new identity-based key agreement scheme for multicast groups based on the works of Wang et al.The procedures of secret communications between subgroups and updating of group keys with the dynamic change of group members are analyzed.The analysis shows that the scheme satisfies the security requirements of key agreement and is efficient in computation and communication.