Effective assignment of fingerprints on CDMA-based fingerprinting scheme

Hiroshi Kato, Minoru Kuribayashi, Masakatu Morii

研究成果

抄録

Digital fingerprinting is to embed information into multimedia contents in order to trace illegal users who distribute pirated copies. One of the serious problems in a fingerprinting system is collusion attack such that several users combine individual copies to remove/modify the embedded fingerprints. As a technique for resisting collusion attacks, Kuribayashi et. al have proposed hierarchical spread spectrum fingerprinting scheme based on the CDMA technique. In this paper, we focus on the number of IDs assigned to each layer, and adjust the assignment for each layer. By optimizing the number of IDs from the theoretical viewpoint, we can effectively decrease the number of elements to be examined, which result in the decrease of the number of false-positive detection without degrading collusion resistance.

本文言語English
ホスト出版物のタイトル2008 International Symposium on Information Theory and its Applications, ISITA2008
DOI
出版ステータスPublished - 2008
外部発表はい
イベント2008 International Symposium on Information Theory and its Applications, ISITA2008 - Auckland
継続期間: 12月 7 200812月 10 2008

出版物シリーズ

名前2008 International Symposium on Information Theory and its Applications, ISITA2008

Other

Other2008 International Symposium on Information Theory and its Applications, ISITA2008
国/地域New Zealand
CityAuckland
Period12/7/0812/10/08

ASJC Scopus subject areas

  • コンピュータサイエンス一般

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