On the Security of the Lee-Chang Group Signature Scheme and Its Derivatives

  • Marc Joye
  • Narn-Yih Lee
  • Tzonelih Hwang
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1729)

Abstract

W.-B. Lee and C.-C. Chang (1998) proposed a very efficient group signature scheme based on the discrete logarithm problem. This scheme was subsequently improved by Y.-M. Tseng and J.-K. Jan (1999) so that the resulting group signatures are unlinkable. In this paper, we show that any obvious attempt to make unlinkable the Lee-Chang signatures would likely fail. More importantly, we show that both the original Lee-Chang signature scheme and its improved version are universally forgeable.

Keywords

Digital signatures Group signatures Cryptanalysis 

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References

  1. 1.
    David Chaum and Eugène van Heijst. Group signatures. In Advances in Cryptology — EUROCRYPT’91, LNCS 547, pp. 257–265. Springer-Verlag, 1991.Google Scholar
  2. 2.
    Wei-Bin Lee and Chin-Chen Chang. Efficient group signature scheme based on the discrete logarithm. IEE Proc. Comput. Digit. Tech., 145(1):15–18, 1998.CrossRefGoogle Scholar
  3. 3.
    Anna Lysyanskaya and Zulfikar Ramzan. Group blind signatures: A scalable solution to electronic cash. In Financial Cryptography (FC’ 98), LNCS 1465, pp. 184–197. Springer-Verlag, 1998.CrossRefGoogle Scholar
  4. 4.
    Kaisa Nyberg and Rainer A. Rueppel. Message recovery for signature schemes based on the discrete logarithm problem. In Advances in Cryptology — EUROCRYPT’94, LNCS 950, pp. 182–193. Springer-Verlag, 1995.CrossRefGoogle Scholar
  5. 5.
    Yuh-Min Tseng and Jinn-Ke Jan. Improved group signature scheme based on dis-crete logarithm problem. Electronics Letters, 35(1):37–38, 1999.CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1999

Authors and Affiliations

  • Marc Joye
    • 1
  • Narn-Yih Lee
    • 2
  • Tzonelih Hwang
    • 3
  1. 1.Gemplus Card InternationalIssy-les-Moulineaux CedexFrance
  2. 2.Dept of Applied Foreign LanguageNan-Tai Institute of TechnologyTainanTaiwan
  3. 3.Institute of Information EngineeringNational Cheng-Kung UniversityTainanTaiwan, R.O.C.

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