Linear Code Implies Public-Key Traitor Tracing

  • Kaoru Kurosawa
  • Takuya Yoshida
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2274)


In this paper, we first show that three public-key (k, n)- traceability schemes can be derived from an [n, u, d]-linear code C such that d ≥ 2k+1. The previous schemes are obtained as special cases. This observation gives a more freedom and a new insight to this field. For example, we show that Boneh-Franklin scheme is equivalent to a slight modification of the corrected Kurosawa-Desmedt scheme. This means that BF scheme is redundant or overdesigned because the modified KD scheme is much simpler. It is also shown that the corrected KD scheme is the best among them.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2002

Authors and Affiliations

  • Kaoru Kurosawa
    • 1
  • Takuya Yoshida
    • 2
  1. 1.Department of Computer and Information SciencesIbaraki UniversityJapan
  2. 2.Department of Communications and Integrated SystemsTokyo Institute of TechnologyJapan

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