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Cryptanalysis of the enhanced ElGamal's signature scheme

  • Chi-Sung Laih
  • Wen-Chung Kuo
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1029)

Abstract

Recently, He and Kiesler proposed a new signature scheme whose security is based on both factorization and discrete logarithms to enhance the security of ElGamal's scheme. In this paper, we show that He-Kiesler signature scheme is insecure under the Known-Signature attack.

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References

  1. 1.
    J. He and T. Kiesler ” Enhancing The Security of ElGamal's Signature Scheme”, IEE Proc.-Comput.Digit.Tech., Vol. 141, No.4, pp. 249–252, July 1994.Google Scholar
  2. 2.
    L. Harn ” Comment Enhancing The Security of ElGamal's Signature Scheme”, to be appeared IEE Proc.-Comput.Digit.Tech..Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1996

Authors and Affiliations

  • Chi-Sung Laih
    • 1
  • Wen-Chung Kuo
    • 1
  1. 1.Department of Electrical EngineeringNational Cheng Kung UniversityTainanTaiwan,Republic of China

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