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Dynamic tree-based authenticated group key exchange protocol
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DOI：10.1007/s11432-010-4021-x.png)
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Authenticated group key exchange protocols allow a group of users over a public network to establish a shared secret key for the subsequent cryptographic goals. In this paper, we extend BD-II scheme into a dynamic setting, and propose a tree-based authenticated key exchange protocol which is more suitable for dynamic groups in such as ad hoc networks. Our protocol is proven secure in random-oracle model. Additionally, we analyze the costs of our protocols in both communication and computation terms, and compare its performance with three well-known protocols.
Keyword:
tree-based
group key exchange
dynamic
provable security
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