Hierarchical Key Agreement Scheme Adapted to P2P Group Communication
Furong Yang · Journal of Chinese Computer Systems · 2007
According to the characteristics of secure group communication key agreement in P2P. This paper presented a hierarchical key agreement scheme H-IBD based on the analysis of traditional scheme BD and improved scheme IBD. Compared with BD scheme,IBD scheme cuts down the overhead of calculation and communication during re-key process, however it still requires all users join in all of the re-key process. By using a 'like tree' hierarchy, H-IBD scheme further reduces the above overhead. Depth analysis shows that H-IBD scheme is rather appropriate for Secure Group Communication Key agreement in P2P.