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[Author] Yoshitaka MORIMURA(1hit)

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  • Fingerprinting Codes for Internet-Based Live Pay-TV System Using Balanced Incomplete Block Designs

    Shuhui HOU  Tetsutaro UEHARA  Takashi SATOH  Yoshitaka MORIMURA  Michihiko MINOH  

     
    PAPER-Contents Protection

      Vol:
    E92-D No:5
      Page(s):
    876-887

    In recent years, with the rapid growth of the Internet as well as the increasing demand for broadband services, live pay-television broadcasting via the Internet has become a promising business. To get this implemented, it is necessary to protect distributed contents from illegal copying and redistributing after they are accessed. Fingerprinting system is a useful tool for it. This paper shows that the anti-collusion code has advantages over other existing fingerprinting codes in terms of efficiency and effectivity for live pay-television broadcasting. Next, this paper presents how to achieve efficient and effective anti-collusion codes based on unital and affine plane, which are two known examples of balanced incomplete block design (BIBD). Meanwhile, performance evaluations of anti-collusion codes generated from unital and affine plane are conducted. Their practical explicit constructions are given last.