计算机工程与应用2012，Vol.48Issue(10)：89-94,6.DOI:10.3778/j.issn.1002-8331.2012.10.019
扩展变换对量化指纹抗合谋攻击性能的影响
Spread transform' s effect on anti-collusion performance of quantization based digital fingerprinting
摘要
Abstract
This paper investigates the effect of Spread Transform (ST) on averaging collusion resistance of quantization based digital fingerprinting schemes and compares the performance of quantization based digital fingerprinting schemes with and without ST through theoretical and experimental study of a quantization based orthogonal fingerprinting scheme. Study shows that an ST gain factor defined as the ratio of a spreading parameter to a direction parameter exerts important influence on anti-collusion performance of ST quantization based fingerprinting schemes. In situations with different strength of noise, anti-collusion performance responds differently to the variation of ST gain factor. ST gain factor equaling 1 renders the performance of ST quantization based fingerprinting the same as its non-ST counterpart.关键词
数字指纹/数字水印/量化/合谋攻击/扩展变换Key words
digital fingerprinting/ digital watermarking/ quantization/ collusion attack/ Spread Transform (ST)分类
信息技术与安全科学引用本文复制引用
郑旭平,张爱新,李生红..扩展变换对量化指纹抗合谋攻击性能的影响[J].计算机工程与应用,2012,48(10):89-94,6.基金项目
国家重点基础研究发展规划项目(No.2010CB731403,No.2010CB731406) （No.2010CB731403,No.2010CB731406）
国家自然科学基金(No.61071081,No.61071152) （No.61071081,No.61071152）
信息网络安全公安部重点实验室(公安部第三研究所)开放课题(No.c09607). （公安部第三研究所）
