TCS
2008
13 years 11 months ago
2008
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 ...
DBSEC
2010
14 years 28 days ago
2010
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...