FORWARD-SECURE AUTHENTICATED-ENCRYPTION IN MULTI-RECEIVER SETTING

Kan Yasuda, Kazumaro Aoki, Eiichiro Fujisaki, Atsushi Fujioka

2006

Abstract

In this paper we study a generic construction of forward-secure authenticated-encryption in unidirectional, multi-receiver setting. By “multi-receiver setting” we mean the situation in which a single center transmits large data to a dynamically changing group of receivers. In such scenario a direct application of bidirectional, unicast methods would lead to multiple problems. In particular, we focus on the problem of vulnerability against a type of denial-of-service (DoS) attack. We show that this problem can be effectively resolved by a mechanism we call “MAC-then-MAC” structure. As the name suggests, this structure uses two independent MACs, but we illustrate how it can be realized without losing efficiency in transmission rate, storage size and computational overhead. Despite the fact that one of the MACs uses a constant key, our construction guarantees integrity in the sense of forward security. We provide a concrete security model showing that our construction achieves confidentiality and strong integrity (replay avoidance, in-order packet delivery, etc.) both in the sense of forward security.

Paper Citation

in Harvard Style

Yasuda K., Aoki K., Fujisaki E. and Fujioka A. (2006). FORWARD-SECURE AUTHENTICATED-ENCRYPTION IN MULTI-RECEIVER SETTING . In Proceedings of the International Conference on Security and Cryptography - Volume 1: SECRYPT, (ICETE 2006) ISBN 978-972-8865-63-4, pages 141-148. DOI: 10.5220/0002101501410148

in Bibtex Style

@conference{secrypt06,
author={Kan Yasuda and Kazumaro Aoki and Eiichiro Fujisaki and Atsushi Fujioka},
title={FORWARD-SECURE AUTHENTICATED-ENCRYPTION IN MULTI-RECEIVER SETTING},
booktitle={Proceedings of the International Conference on Security and Cryptography - Volume 1: SECRYPT, (ICETE 2006)},
year={2006},
pages={141-148},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002101501410148},
isbn={978-972-8865-63-4},
}

in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Security and Cryptography - Volume 1: SECRYPT, (ICETE 2006)
TI - FORWARD-SECURE AUTHENTICATED-ENCRYPTION IN MULTI-RECEIVER SETTING
SN - 978-972-8865-63-4
AU - Yasuda K.
AU - Aoki K.
AU - Fujisaki E.
AU - Fujioka A.
PY - 2006
SP - 141
EP - 148
DO - 10.5220/0002101501410148