A three round authenticated group key agreement protocol for ad hoc networks
Pervasive and Mobile Computing
Security of predefined groups in manets
Proceedings of the 3rd ACM workshop on QoS and security for wireless and mobile networks
ECGK: An efficient clustering scheme for group key management in MANETs
Computer Communications
ISCIS'06 Proceedings of the 21st international conference on Computer and Information Sciences
Verifiable agreement: limits of non-repudiation in mobile peer-to-peer ad hoc networks
ESAS'06 Proceedings of the Third European conference on Security and Privacy in Ad-Hoc and Sensor Networks
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A Group Key Agreement (GKA) protocol is a mechanism to establish a cryptographic key for a group of participants, based on each oneýs contribution, over a public network. The key, thus derived, can be used to establish a secure channel between the participants. When the group composition changes (or otherwise), one can employ supplementary GKA protocols to derive a new key. Thus, they are well-suited to the key establishment needs of dynamic peer-to-peer networks as in ad hoc networks. While many of the proposed GKA protocols are too expensive to be employed by the constrained devices often present in ad hoc networks, others lack a formal security analysis. In this paper, we present a simple, secure and efficient GKA protocol well suited to dynamic ad hoc networks. We also present results of our implementation of the protocol in a prototype application.