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An Efficient Key Management Algorithm for Hierarchical Group Communication

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4 Author(s)
Hassan, H.R. ; Compiegne University of Technology, France ; Bouabdallah, A. ; Bettahar, H. ; Challal, Y.

Even though hierarchical group communication is a prominent communication model for a variety of applications, featured by hierarchical communication rules, it has not been sufficiently investigated in the security literature. In this paper, we introduce private hierarchical group communication and we determine its specific confidentiality requirements, and then we propose an efficient key management protocol satisfying those requirements. This work is done in the frame of a national french project whose consortium includes the international telecom company EADS, INRIA, CNRS and ENST-Paris. The project is called Safe- Cast and deals with group communication in PMR networks that are used mainly by security corps (police, fire fighters, soldiers, and so forth) in areas where it is difficult to have network infrastructures, such as war battles or following a natural disaster (earthquake, tsunami, tornado, or similar).

Published in:

Security and Privacy for Emerging Areas in Communications Networks, 2005. SecureComm 2005. First International Conference on

Date of Conference:

05-09 Sept. 2005