Secure performance analysis of digital watermarking algorithms of spread spectrum

doi:10.3778/j.issn.1002-8331.2010.07.028

Computer Engineering and Applications ›› 2010, Vol. 46 ›› Issue (7): 93-95.DOI: 10.3778/j.issn.1002-8331.2010.07.028

• 网络、通信、安全 • Previous Articles Next Articles

Secure performance analysis of digital watermarking algorithms of spread spectrum

ZHANG Zheng-bao，YANG Su-min，QU Chuan-bing

Department of Computer Engineering，Ordnance Engineering College，Shijiazhuang 050003，China

Received:2008-09-09 Revised:2008-11-20 Online:2010-03-01 Published:2010-03-01
Contact: ZHANG Zheng-bao

扩频数字水印算法的安全性分析

张政保，杨素敏，璩传兵

军械工程学院计算机工程系，石家庄 050003

通讯作者: 张政保

Abstract

Abstract: The security performance of digital watermarking algorithms is studied by the parameter estimation theory，namely Cramer-Rao theorem，and the security extent under different attacks is derived.The simulation results of ISS（Improved Spread Spectrum） algorithm is given out to corroborate the analysis.

Key words: spread spectrum, digital watermarking, security, Cramer-Rao theorem, Fisher’ measure

摘要： 利用参数估计的相关理论对扩频水印算法的安全性进行了分析。从理论上推定了扩频算法在不同攻击下所能达到的安全值，利用ISS（Improved Spread Spectrum）扩频水印算法进行了仿真实验，对理论推导的结果进行了进一步验证，为以后开发鲁棒性和安全性更高的水印算法提供了依据。

关键词: 扩频通信, 数字水印, 安全性, Cramer-Rao定理, Fisher信息矩阵

CLC Number:

TP309

TN918

ZHANG Zheng-bao，YANG Su-min，QU Chuan-bing. Secure performance analysis of digital watermarking algorithms of spread spectrum[J]. Computer Engineering and Applications, 2010, 46(7): 93-95.

张政保，杨素敏，璩传兵. 扩频数字水印算法的安全性分析[J]. 计算机工程与应用, 2010, 46(7): 93-95.

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Secure performance analysis of digital watermarking algorithms of spread spectrum

扩频数字水印算法的安全性分析

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