A Provably Secure Refreshable Partially Anonymous Token and Its Applications(<Special Section>Discrete Mathematics and Its Applications)

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概要

• 論文の詳細を見る

• 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.

• 社団法人電子情報通信学会の論文
• 2006-05-01

著者

• IMAI Hideki

  Institute of Industrial Science, The University of Tokyo

• Otsuka Akira

  Research Center For Information Security Aist

• Martin Keith

  Royal Holloway University Of London

• Imai Hideki

  Institute Of Industrial Science The University Of Tokyo

• FURUKAWA Jun

  Institute of Industrial Science, University of Tokyo

• SHIGETOMI Rie

  Institute of Industrial Science, University of Tokyo

• Shigetomi Rie

  Institute Of Industrial Science University Of Tokyo

• Furukawa Jun

  Institute Of Industrial Science University Of Tokyo:nec Corporation

• Imai Hideki

  Institute Of Industrial Science Interfaculty Initiative For Information Studies University Of Tokyo

• Otsuka Akira

  Research Center For Information Security (rcis) National Institute Of Advanced Industrial Science An

• MARTIN Keith

  Royal Holloway, University of London

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