A Dynamic Attribute-Based Group Signature Scheme and Its Application in an Anonymous Survey for the Collection of Attribute Statistics

DOI
  • Emura Keita
    School of Information Science, Japan Advanced Institute of Science and Technology
  • Miyaji Atsuko
    School of Information Science, Japan Advanced Institute of Science and Technology
  • Omote Kazumasa
    School of Information Science, Japan Advanced Institute of Science and Technology

抄録

Recently, cryptographic schemes based on the user's attributes have been proposed. An Attribute-Based Group Signature (ABGS) scheme is a kind of group signature scheme, where a user with a set of attributes can prove anonymously whether she has these attributes or not. An access tree is applied to express the relationships among some attributes. However, previous schemes did not provide a way to change an access tree. In this paper, we propose a dynamic ABGS scheme that can change an access tree. Our ABGS is efficient in that re-issuing of the attribute certificate previously issued for each user is not necessary. The number of calculations in a pairing does not depend on the number of attributes in both signing and verifying. Finally, we discuss how our ABGS can be applied to an anonymous survey for collection of attribute statistics.

収録刊行物

詳細情報 詳細情報について

  • CRID
    1390001205264168448
  • NII論文ID
    130000140307
  • DOI
    10.11185/imt.4.1060
  • ISSN
    18810896
  • 本文言語コード
    en
  • データソース種別
    • JaLC
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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