Authors: Wang, Jian
Mihaljević, Miodrag J. 
Harn, Lein
Imai, Hideki
Affiliations: Mathematical Institute of the Serbian Academy of Sciences and Arts 
Title: A hierarchical key management approach for secure multicast
Journal: Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume: 3894 LNCS
First page: 422
Last page: 434
Issue Date: 1-Jan-2006
Rank: M23
ISBN: 978-3-540-32765-3
ISSN: 0302-9743
DOI: 10.1007/11682127_30
Abstract: 
The problem of secure multicasting in a large and highly dynamical group of users is addressed, and a novel hierarchical key management framework is proposed, based on an appropriate combination of the updatable and static logical key hierarchies. It fits to the underlying architecture of an IP-based network, and reduces the synchronization problem which is a main issue regarding the necessary key update upon membership changes. The proposed solution employs a hybrid two-layer approach with the updatable key hierarchy in the upper layer and the static one in the bottom layer. It provides scalability, flexibility, efficiency and security. Although any static and updatable logical hierarchies can be employed, certain architectural issues of the proposed framework are considered. The security and performance of the proposed approaches are discussed and compared with the previously reported schemes, and advantages of the proposed approach are pointed out.
Keywords: Computer architecture | Formal logic | Hierarchical systems | Network protocols | Security of data | Synchronization | User interfaces
Publisher: Springer Link

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