Study on optimal tree of BKR in secure multicast
Wei Zhang · Computer Engineering and Applications Journal · 2007
LKH is an important method adopted in group key management.It decreases the number of encryption messages in group management and the network communication overhead.BKR(Batch Key Retransmission) based on LKH further decreases all kinds of consumption,and makes the rekeying more efficient.By analyzing the applying characters of LKH in BKR and further studying the optimal tree structure put forward in current references,we have given the specific mathematical model of the optimal tree.The experimental result shows that the mathematical model presented in this paper is more efficient for practical secure multicast.