Title :
A scalable key distribution scheme for secure multicast
Author :
Li, Bao-Hong ; Hou, Yi-Bin ; Zhao, Yin-Liang
Author_Institution :
Dept. of Comput. Sci. & Technol., Xi´´an Jiaotong Univ., China
Abstract :
Logic key hierarchy is a leading scheme for key distribution in secure multicast. An improved logic key hierarchy scheme, based on one-way hash function, is proposed. Besides its simplicity, the improved scheme can reduce key server´s average cost by about 1/3. Moreover, a batch update algorithm for this improved scheme is also presented, and its performance is evaluated through experiments. Compared with batch update algorithm in logic key hierarchy scheme, it shows the algorithm presented in this paper can reduce key server cost by at least 1/3.
Keywords :
client-server systems; multicast communication; public key cryptography; security of data; batch update algorithm; key server cost reduction; logic key hierarchy scheme; multicast security; scalable key distribution scheme; Cities and towns; Computational efficiency; Computer science; Cost function; Cryptography; Logic; Multicast algorithms; Optimization; Scalability; Software engineering;
Conference_Titel :
Machine Learning and Cybernetics, 2004. Proceedings of 2004 International Conference on
Print_ISBN :
0-7803-8403-2
DOI :
10.1109/ICMLC.2004.1382230
