Improved collusion-secure codes for digital fingerprinting based on finite geometries

被引:0
|
作者
Yagi, Hideki [1 ]
Matsushima, Toshiyasu [2 ]
Hirasawa, Shigeichi [2 ]
机构
[1] Waseda Univ, Media Network Ctr, Tokyo 1698050, Japan
[2] Waseda Univ, Sch Sci & Engn, Tokyo 1698555, Japan
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中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Digital fingerprinting, a copyright protection technique for digital contents, is considered. Digital fingerprinting should deter collusion attacks, where several fingerprinted copies of the same content are mixed to disturb their fingerprints. In this paper, we consider the averaging attack, which has effect for multimedia fingerprinting. We propose new collusion-secure fingerprinting codes based on finite geometries (FGs) which increase the rate of conventional collusion-secure codes, while they guarantee to identify the same number of colluders. Due to the new FG-based fingerprinting codes, the system can deal with a larger number of users to distribute a digital content.
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页码:522 / +
页数:2
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