Welcome to the resource topic for 2005/131
Title:
Dynamic Group Key Agreement in Tree-Based Setting
Authors: Ratna Dutta, Rana Barua
Abstract: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.
ePrint: https://eprint.iacr.org/2005/131
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