Unconditionally Secure Authenticated Encryption with Shorter Keys

Basel Alomair; Radha Poovendran

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Paper

Unconditionally Secure Authenticated Encryption with Shorter Keys

In Proceedings of the 7th International Workshop on Security in Information Systems - Volume 1: WOSIS, 3-15, 2009 , Milan, Italy

Authors: Basel Alomair and Radha Poovendran

Affiliation: University of Washington, United States

ISBN: 978-989-8111-91-3

Abstract: Confidentiality and integrity are two main objectives of security systems and the literature of cryptography is rich with proposed techniques to achieve them. To satisfy the requirements of a wide range of applications, a variety of techniques with different properties and performances have appeared in the literature. In this work, we address the problem of confidentiality and integrity in communications over public channels. We propose an unconditionally secure authenticated encryption that requires shorter key material than current state of the art. By combining properties of the integer field Zp with the fact that the message to be authenticated is unknown to adversaries (encrypted), message integrity is achieved using a single modular multiplication. Against an adversary equipped with a single antenna, the adversary’s probability of modifying a valid message in a way undetected by the intended receiver can be made an absolute zero. After the description of the basic scheme and i ts detailed security analysis are completed, we describe an extension to the main scheme that can substantially reduce the required amount of key material. (More)

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Paper citation in several formats:

Alomair, B. and Poovendran, R. (2009). Unconditionally Secure Authenticated Encryption with Shorter Keys. In Proceedings of the 7th International Workshop on Security in Information Systems - Volume 1: WOSIS, (ICEIS 2009) ISBN 978-989-8111-91-3, pages 3-15. DOI: 10.5220/0002169600030015

@conference{wosis09,
author={Basel Alomair. and Radha Poovendran.},
title={Unconditionally Secure Authenticated Encryption with Shorter Keys},
booktitle={Proceedings of the 7th International Workshop on Security in Information Systems - Volume 1: WOSIS, (ICEIS 2009)},
year={2009},
pages={3-15},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002169600030015},
isbn={978-989-8111-91-3},
}

TY - CONF

JO - Proceedings of the 7th International Workshop on Security in Information Systems - Volume 1: WOSIS, (ICEIS 2009)
TI - Unconditionally Secure Authenticated Encryption with Shorter Keys
SN - 978-989-8111-91-3
AU - Alomair, B.
AU - Poovendran, R.
PY - 2009
SP - 3
EP - 15
DO - 10.5220/0002169600030015