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- W1549202317 abstract "Several protocols have been proposed to deal with the group key management problem. The most promising are those based on hierarchical binary trees. A hierarchical binary tree of keys reduces the size of the rekey messages, reducing also the storage and processing requirements. In this paper, we describe a new efficient hierarchical binary tree (EHBT) protocol. Using EHBT, a group manager can use keys already in the tree to derive new keys. Using previously known keys saves information to be transmitted to members when a membership change occurs and newkeys have to be created or updated. EHBT can achieve (I.log2 n) message size (I is the size of a key index)for join operations and (K.log2 n) message size (K is the size of a key)for leave operations. We also show that the EHBT protocol does not increase the storage and processing requirements when compared to other HBT schemes." @default.
- W1549202317 created "2016-06-24" @default.
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- W1549202317 date "2001-01-01" @default.
- W1549202317 modified "2023-09-23" @default.
- W1549202317 title "EHBT: An Efficient Protocol for Group Key Management" @default.
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- W1549202317 doi "https://doi.org/10.1007/3-540-45546-9_12" @default.
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