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 adversaries. The protocol has an in-built hierarchical structure that makes it desirable for certain applications.

• Type: Conference
• Year: 2005
• Where: ACISP
• Authors: Ratna Dutta, Rana Barua
• Keywords: ACISP 2005, Bilinear Pairing, Key Agreement Protocol, Provably Secure, Security Privacy