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1998
Springer

Compact and Flexible Resolution of CBT Multicast Key-Distribution

10 years 4 months ago
Compact and Flexible Resolution of CBT Multicast Key-Distribution
In an open network such as the Internet, multicast security services typically start with group session-key distribution. Considering scalability for group communication among widely-distributed members, we can find a currently-leading approach based on a CBT (Core-Based Tree) routing protocol, where Group Key Distribution Centers (GKDCs) are dynamically constructed during group-member joining process. In search of practical use of it, this paper first analyzes the CBT protocol in terms of its efficiency as well as security management. Then the paper proposes several improvements on the protocol with an aim to solve the problem identified. In particular, (1) an overuse of encryption and signatures is avoided and (2) a hybrid trust model is introduced by a simple mechanism for controling the GKDC distribution. A comprehensive comparison among the costs of several implementations is also carried out.
Kanta Matsuura, Yuliang Zheng, Hideki Imai
Added 06 Aug 2010
Updated 06 Aug 2010
Type Conference
Year 1998
Where WWCA
Authors Kanta Matsuura, Yuliang Zheng, Hideki Imai
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