Tree-based group key agreement

Dynamic Group Key Agreement in Tree-Based Setting

We present a provably secure tree based authenticated group key agreement protocol in dynamic scenario. Bilinear pairing and multi-signature are at the heart of our protocol. We prove that our protocol is provably secure in the standard security model of Bresson et al. An appropriate modification of Katz-Yung approach to tree based setting is adopted while proving its security against active ad...

Ternary Tree Based Group Key Agreement for Cognitive Radio MANETs

This paper presents an efficient contributory group key agreement protocol for secure communication between the lightweight small devices in cognitive radio mobile ad hoc networks. A Ternary tree based Group ECDH.2 (TGECDH.2) protocol that uses a batch rekeying algorithm during membership change is proposed in this paper. This ternary tree is a balanced key tree in which appropriate insertion p...

An Efficient Tree-Based Group Key Agreement Using Bilinear Map

Secure and reliable group communication is an increasingly active research area by growing popularity in group-oriented and collaborative application. One of the important challenges is to design secure and efficient group key management. While centralized management is often appropriate for key distribution in large multicast-style groups, many collaborative group settings require distributed ...

Provably Secure Authenticated Tree Based Group Key Agreement

Efficient Group Key Agreement on Tree-based Braid Groups

The security issues in ad hoc network are increasingly important. In this paper, we propose a distributed key management what approach by using braid groups and key tree. Without any assumption of prefixed trust relationship between nodes, the proposed method works in a self-organizing way to provide the key management services. The using of the proposed tree-based braid groups has following ad...