Remarks on fingerprint-based remote user authentication scheme using smart cards

  • Authors:
  • Chin-Chen Chang;Iuon-Chang Lin

  • Affiliations:
  • National Chung Cheng University, Chaiyi, Taiwan, R.O.C.;National Kaohsiung University of Applied Sciences, Kaohsiung, Taiwan, R.O.C.

  • Venue:
  • ACM SIGOPS Operating Systems Review
  • Year:
  • 2004

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Abstract

In 2002, Lee, Ryu, and Yoo proposed a fingerprint-based remote user authentication scheme using smart cards. The scheme makes it possible for authenticating the legitimacy of each login user without any password table. In addition, the authors claimed that the scheme can withstand message replay attack and impersonation. In this paper, we shall point out a security flaw in this scheme, that is, n legitimate users can conspire to forge 2n-n-1 valid IDs and PWs for successfully passing the system authentication. Furthermore, we also show that the authentication equation is incorrect. Thus, the scheme is unworkable.