AN EFFICIENT GROUP KEY AGREEMENT PROTOCOL FOR HETEROGENEOUS ENVIRONMENT

Mounita Saha, Dipanwita Roy Chowdhury

2009

Abstract

Secure group communication in heterogeneous environment is gaining popularity due to the advent of wireless and ubiquitous computing. Although a number of protocols for group key agreement have been proposed, most of them are not applicable in heterogeneous environment where a number of computationally limited nodes coexist with one or more computationally efficient nodes. Among the few existing protocols, where some fail to satisfy the key agreement properties, some are unable to handle the agreement for dynamic group. In this work, we propose a constant round group key agreement protocol for heterogeneous environment using polynomial interpolation. The protocol ensures both communication and computation efficiency by shifting the major computation load on powerful users, achieves true contributory key agreement property and dynamic handling of user join and leave. The security of the protocol has been analyzed under formal model. Finally we have extended the protocol to hierarchy, offering more scalability without affecting the security and efficiency. The comparison result shows considerable improvement in protocol efficiency compared to the existing ones.

Paper Citation

in Harvard Style

Saha M. and Roy Chowdhury D. (2009). AN EFFICIENT GROUP KEY AGREEMENT PROTOCOL FOR HETEROGENEOUS ENVIRONMENT . In Proceedings of the International Conference on Security and Cryptography - Volume 1: SECRYPT, (ICETE 2009) ISBN 978-989-674-005-4, pages 182-189. DOI: 10.5220/0002226101820189

in Bibtex Style

@conference{secrypt09,
author={Mounita Saha and Dipanwita Roy Chowdhury},
title={AN EFFICIENT GROUP KEY AGREEMENT PROTOCOL FOR HETEROGENEOUS ENVIRONMENT},
booktitle={Proceedings of the International Conference on Security and Cryptography - Volume 1: SECRYPT, (ICETE 2009)},
year={2009},
pages={182-189},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002226101820189},
isbn={978-989-674-005-4},
}

in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Security and Cryptography - Volume 1: SECRYPT, (ICETE 2009)
TI - AN EFFICIENT GROUP KEY AGREEMENT PROTOCOL FOR HETEROGENEOUS ENVIRONMENT
SN - 978-989-674-005-4
AU - Saha M.
AU - Roy Chowdhury D.
PY - 2009
SP - 182
EP - 189
DO - 10.5220/0002226101820189