H. Ragab Hassen

Key management for content access control in a hierarchy

Yacine Challal, Abdelmadjid Bouabdallah, Hatem Bettahar, 2007, Comput. Networks.

An efficient key management scheme for content access control for linear hierarchies

Yacine Challal, Abdelmadjid Bouabdallah, Hatem Bettahar, 2012, Comput. Networks.

A New and Efficient Key Management Scheme for Content Access Control within Tree Hierarchies

Abdelmadjid Bouabdallah, Hatem Bettahar, H. Ragab Hassen, 2007, 21st International Conference on Advanced Information Networking and Applications Workshops (AINAW'07).

An Efficient Key Management Algorithm for Hierarchical Group Communication

Yacine Challal, Abdelmadjid Bouabdallah, Hatem Bettahar, 2005, First International Conference on Security and Privacy for Emerging Areas in Communications Networks (SECURECOMM'05).