International Association for Cryptologic Research

International Association
for Cryptologic Research

CryptoDB

Paper: Dynamic Group Key Agreement in Tree-Based Setting

Authors:
Ratna Dutta
Rana Barua
Download:
URL: http://eprint.iacr.org/2005/131
Search ePrint
Search Google
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.
BibTeX
@misc{eprint-2005-12467,
  title={Dynamic Group Key Agreement in Tree-Based Setting},
  booktitle={IACR Eprint archive},
  keywords={cryptographic protocols / bilinear pairing, multi-signature, group key agreement, dynamic operations, provable security},
  url={http://eprint.iacr.org/2005/131},
  note={Accepted in ACISP 2005, to appear ratna_r@isical.ac.in 12908 received 3 May 2005, last revised 5 May 2005},
  author={Ratna Dutta and Rana Barua},
  year=2005
}