New Security Index for Digital Fingerprinting and Its Bounds

Shingo Orihara, Takaaki Mizuki, Takao Nishizeki

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


Fingerprinting is one of the digital watermarking techniques, and is becoming more important as a copyright protection technique. Fingerprinting must resist collusion attacks. As a security index, "c-secureness" has been proposed, but it has been known that there is indeed no c-secure code. In this paper, we introduce a new index to measure the resilience of fingerprinting for collusion attacks and obtain some upper bounds', and a lower bound on the index.

Original languageEnglish
Pages (from-to)1156-1163
Number of pages8
JournalIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Issue number5
Publication statusPublished - 2003 May


  • Collusion attack
  • Digital watermarking
  • Fingerprinting
  • Security index

ASJC Scopus subject areas

  • Signal Processing
  • Computer Graphics and Computer-Aided Design
  • Electrical and Electronic Engineering
  • Applied Mathematics


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