Hsing-Chung Chen, Shiuh-Jeng Wang, Jyh-Horng Wen, Chung-Wei Chen. Flexible Key Assignment for a Time-Token Constraint in a Hierarchy. In 2008 International Conference on Multimedia and Ubiquitous Engineering (MUE 2008), 24-26 April 2008, Busan, Korea. pages 521-526, IEEE Computer Society, 2008. [doi]
Abstract is missing.