On the security of a novel and efficient unlinkable secret handshakes scheme

  • Authors:
  • Renwang Su

  • Affiliations:
  • Department of Information and Computing Science, College of Statistics and Mathematics, Zhejiang Gongshang University, Hangzhou, Zhejiang, P.R. China

  • Venue:
  • IEEE Communications Letters
  • Year:
  • 2009

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Abstract

Quite recently [IEEE Commu. Letters, Vol. 13, No. 5, 2009], Huang and Cao proposed a novel and efficient unlinkable secret handshakes scheme claiming to provide unlinkability and better performance than previously reported ones. In this paper, we will point out their scheme has a serious security loophole due to an inherent design flaw. Thus, we hope that by identifying the design flaw, similar mistakes can be avoided in future unlinkable secret handshakes designs.