Sciweavers

TCS
2008
13 years 11 months ago
New constructions for provably-secure time-bound hierarchical key assignment schemes
A time-bound hierarchical key assignment scheme is a method to assign time-dependent encryption keys to a set of classes in a partially ordered hierarchy, in such a way that each ...
Alfredo De Santis, Anna Lisa Ferrara, Barbara Masu...
DBSEC
2010
137views Database» more  DBSEC 2010»
14 years 13 days ago
Constructing Key Assignment Schemes from Chain Partitions
Abstract. In considering a problem in access control for scalable multimedia formats, we have developed new methods for constructing a key assignment scheme. Our first contribution...
Jason Crampton, Rosli Daud, Keith M. Martin