An Efficient Time-Bound Hierarchical Key Management Scheme for Secure Broadcasting.

Elisa Bertino Ning Shang Samuel S. Wagstaff Jr. An Efficient Time-Bound Hierarchical Key Management Scheme for Secure Broadcasting. 65-70 2008 5 IEEE Trans. Dependable Sec. Comput. 2 http://doi.ieeecomputersociety.org/10.1109/TDSC.2007.70241 db/journals/tdsc/tdsc5.html#BertinoSW08