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Design of Anonymous Attribute Authentication Mechanism
Shinsaku KIYOMOTO
Kazuhide FUKUSHIMA
Toshiaki TANAKA
Publication
IEICE TRANSACTIONS on Communications Vol.E92-B No.4 pp.1112-1118
Publication Date: 2009/04/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Internet Technology and its Architecture for Ambient Information Systems)
Category:
Keyword:
anonymous authentication,
attribute authentication,
self-blindable certificate,
untraceability,
Full Text: PDF(365KB)
Summary:
Privacy remains an issue for IT services. Users are concerned that their history of service use may be traceable since each user is assigned a single identifier as a means of authentication. In this paper, we propose a perfectly anonymous attribute authentication scheme that is both unidentifiable and untraceable. Then, we present the evaluation results of a prototype system using a PC and mobile phone with the scheme. The proposed scheme employs a self-blindable certificate that a user can change randomly; thus the certificate is modified for each authentication, and the authentication scheme is unidentifiable and untraceable. Furthermore, our scheme can revoke self-blindable certificates without leaks of confidential private information and check the revocation status without online access.
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