A Provably Secure Refreshable Partially Anonymous Token and Its Applications

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Abstract

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

  • IEICE Trans. Fundamentals, A

    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

  • CRID
    1573387452395496064
  • NII Article ID
    110007502855
  • NII Book ID
    AA10826239
  • ISSN
    09168508
  • Text Lang
    en
  • Data Source
    • CiNii Articles

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