Paper 2005/131
Dynamic Group Key Agreement in Tree-Based Setting
Ratna Dutta and 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.
Metadata
- Available format(s)
-
PDF
PS
- Category
- Cryptographic protocols
- Publication info
- Published elsewhere. Accepted in ACISP 2005, to appear
- Keywords
- bilinear pairingmulti-signaturegroup key agreementdynamic operationsprovable security
- Contact author(s)
- ratna_r @ isical ac in
- History
- 2005-05-05: revised
- 2005-05-05: received
- See all versions
- Short URL
- https://ia.cr/2005/131
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2005/131,
author = {Ratna Dutta and Rana Barua},
title = {Dynamic Group Key Agreement in Tree-Based Setting},
howpublished = {Cryptology {ePrint} Archive, Paper 2005/131},
year = {2005},
url = {https://eprint.iacr.org/2005/131}
}
