A Provably Secure Refreshable Partially Anonymous Token and Its Applications
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- SHIGETOMI Rie
- Institute of Industrial Science, University of Tokyo
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- OTSUKA Akira
- Research Center for Information Security, AIST
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- FURUKAWA Jun
- Institute of Industrial Science, University of Tokyo
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- MARTIN Keith
- Royal Holloway, University of London
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- IMAI Hideki
- Institute of Industrial Science, University of Tokyo
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Description
The first refreshable anonymous token scheme proposed in [1] enables one to provide services in such a way that each of its users is allowed to enjoy only a fixed number of services at the same time. In this paper, we show that the scheme in [1] is insecure and propose a provably secure refreshable partial anonymous token scheme which is a generalization of the previous scheme. The new scheme has an additional ability to control the anonymity level of users. We also propose a formal model and security requirements of the new scheme.
Journal
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- IEICE Trans. Fundamentals, A
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IEICE Trans. Fundamentals, A 89 (5), 1396-1406, 2006-05-01
The Institute of Electronics, Information and Communication Engineers
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Details 詳細情報について
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- CRID
- 1573387452395496064
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- NII Article ID
- 110007502855
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- NII Book ID
- AA10826239
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- ISSN
- 09168508
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- Text Lang
- en
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- Data Source
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- CiNii Articles
