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- W65315068 abstract "Abstract We present a hybrid group key management protocolthat incorporates both a centralized and a contributoryscheme for key management, and a tree-based EllipticCurve Diffie-Hellman technique for group key updates.It combines the advantage of the centralized approach’sefficiency and the contributory scheme’s fault tolerance.In addition, our rekeying algorithm updates the groupkey in the presence of any sequence of node failures, noderestorations, and membership changes. Furthermore, ourscheme incorporates a reliable and authenticated rekeyingmessage transport method. Performance analysis indi-cates that our protocol reduces computational costs andcommunication overhead as compared to other popularprotocols.Keywords: Authenticated multicast, group key manage-ment, periodic batch rekeying, reliability 1 Introduction There has been a growing demand in the past few yearsfor security in collaborative environments deployed foremergency services, as well as many applications in mili-tary, business, government and research organizations [5].Many of these applications involve secure group commu-nications. To protect group communication data againstpassive and active adversaries, providing confidentialitybecomes one of the top concerns. To satisfy this require-ment, a common and efficient solution is to deploy a sym-metric group key shared by all group application partici-pants. Whenever a member leaves or joins the group, orwhenever a node failure or restoration occurs, the groupkey should be updated to provide forward and backwardsecrecy. Therefore, a key management protocol that com-putes the symmetric group key and forwards the rekeyingmessages to all legitimate group members is central to thesecurity of the group application." @default.
- W65315068 created "2016-06-24" @default.
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- W65315068 date "2008-01-01" @default.
- W65315068 modified "2023-10-02" @default.
- W65315068 title "A Hybrid Group Key Management Protocol for Reliable and Authenticated Rekeying" @default.
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