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Systematic Generation of Tardos's Fingerprint Codes

Minoru KURIBAYASHI, Masakatu MORII

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Summary :

Digital fingerprinting is used to trace back illegal users, where unique ID known as digital fingerprints is embedded into a content before distribution. On the generation of such fingerprints, one of the important properties is collusion-resistance. Binary codes for fingerprinting with a code length of theoretically minimum order were proposed by Tardos, and the related works mainly focused on the reduction of the code length were presented. In this paper, we present a concrete and systematic construction of the Tardos's fingerprinting code using a chaotic map. Using a statistical model for correlation scores, the actual number of true-positive and false-positive detection is measured. The collusion-resistance of the generated fingerprinting codes is evaluated by a computer simulation.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E93-A No.2 pp.508-515
Publication Date
2010/02/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.E93.A.508
Type of Manuscript
PAPER
Category
Cryptography and Information Security

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