Abstract
The efficiency and security of secure group communication are dependent on the group key manager (GKM), which manages the group keys and membership. Although a GKM can employ any kind of group key management algorithm, we adopt the logical key hierarchy (LKH) in this paper for its efficiency and scalability. LKH is a tree-based group key management algorithm and it is more efficient when the key tree is balanced. However, only a few papers or documents have dealt with practical tree balancing techniques so far. In this paper, we propose LKHTreeManager, an LKH key tree management algorithm that is efficient for a large and highly dynamic secure group. The proposed technique efficiently manages the key tree by combining LKH and AVL (Adelson-Velskii and Landis) tree. We show that LKHTreeManager reduces the membership processing time, as well as the number of key messages.
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© 2006 Springer-Verlag Berlin Heidelberg
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Kwak, DW., Lee, S., Kim, J., Jung, E. (2006). An Efficient Key Tree Management Algorithm for LKH Group Key Management. In: Chong, I., Kawahara, K. (eds) Information Networking. Advances in Data Communications and Wireless Networks. ICOIN 2006. Lecture Notes in Computer Science, vol 3961. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11919568_70
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DOI: https://doi.org/10.1007/11919568_70
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-48563-6
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