A secure identity-based threshold signature scheme from Tate pairings

  • Authors:
  • Hong Zhou;Xi Li;Jie Yang

  • Affiliations:
  • Huazhong University of Sci. and Tech., China;Huazhong University Sci. and Tech., China;Huazhong University of Sci. and Tech., China

  • Venue:
  • ICAIT '08 Proceedings of the 2008 International Conference on Advanced Infocomm Technology
  • Year:
  • 2008

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Abstract

Identity-based systems have the property that a user's public key can be easily calculated from his identity by a publicly available function. The bilinear pairings, especially Tate pairings, have high performance in cryptography. With the foundation of above two properties, we have proposed a new ID-Based (t,n) threshold signature scheme from Tate pairings. The scheme is proved secure that it can resist attacks including plaintext attack, recovery equation attack, conspiracy attack and impersonation attack. Furthermore, performance analysis shows that the proposed scheme is simple, efficient so that it will be suitable for an environment of finite bandwidth and low capability equipment.