✦ LIBER ✦

Dynamic asymmetric group key agreement for ad hoc networks

✍ Scribed by Xingwen Zhao; Fangguo Zhang; Haibo Tian

Publisher: Elsevier Science
Year: 2011
Tongue: English
Weight: 291 KB
Volume: 9
Category: Article
ISSN: 1570-8705
DOI: 10.1016/j.adhoc.2010.11.002

No coin nor oath required. For personal study only.

✦ Synopsis

A group key agreement protocol allows a set of users to establish a common symmetric key via open networks. Dynamic asymmetric group key agreement means that a dynamic set of users form a temporary group and negotiate to share a public encryption key, so that anyone can send message securely and efficiently to the temporary group. Users can join or leave the group efficiently without triggering a completely new key agreement protocol, which will greatly benefit the users in ad hoc networks. We describe a generic construction of dynamic asymmetric group key agreement by combining a conventional authenticated group key agreement, a public key encryption and a multi-signature. Then we give out an instance with constant rounds of interactions and constant transmission cost for each participant.

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