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Author: Kazuki Yoneyama

Affiliation: The University of Electro-Communications, Japan

Keyword(s): Anonymity, anonymous message authentication, universal composability, ring signature, group-certification authority.

Related Ontology Subjects/Areas/Topics: Cryptographic Techniques and Key Management ; Information and Systems Security ; Public Key Crypto Applications

Abstract: Recently, various casual communication tools which are run by a certain group (e.g., social network service, blog and Wiki) are popularized. In such services, a member may want to inform some information to other group members without exposing his identity. For this perpose, message authentication schemes which guarantee anonymity of senders seem to be suitable. In this paper, we introduce a new anonymous message authentication scheme using ring signature with a special certification authority, called group-certification authority. Our scheme does not need any group manager to preserve the anonymity of the group member by the property of ring signature. Therefore, our scheme is suitable to casual services where a strict operation is not required by a system manager. Furthermore, we evaluate the security of our scheme in the universal composability framework.

CC BY-NC-ND 4.0

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Paper citation in several formats:
Yoneyama, K. (2008). ANONYMOUS MESSAGE AUTHENTICATION - Universally Composable Definition and Construction. In Proceedings of the International Conference on Security and Cryptography (ICETE 2008) - SECRYPT; ISBN 978-989-8111-59-3; ISSN 2184-3236, SciTePress, pages 351-354. DOI: 10.5220/0001916503510354

@conference{secrypt08,
author={Kazuki Yoneyama.},
title={ANONYMOUS MESSAGE AUTHENTICATION - Universally Composable Definition and Construction},
booktitle={Proceedings of the International Conference on Security and Cryptography (ICETE 2008) - SECRYPT},
year={2008},
pages={351-354},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001916503510354},
isbn={978-989-8111-59-3},
issn={2184-3236},
}

TY - CONF

JO - Proceedings of the International Conference on Security and Cryptography (ICETE 2008) - SECRYPT
TI - ANONYMOUS MESSAGE AUTHENTICATION - Universally Composable Definition and Construction
SN - 978-989-8111-59-3
IS - 2184-3236
AU - Yoneyama, K.
PY - 2008
SP - 351
EP - 354
DO - 10.5220/0001916503510354
PB - SciTePress