提出了一种改进的非对称水印算法。
This paper displays an improved asymmetric watermarking algorithm.
所有权证明者采用基于扩频的对称水印技术，在宿主信号中嵌入水印；
The ownership prover insert the watermark into the host signal using symmetric watermark technology based on spread spectrum.
理论分析和仿真结果表明，该非对称水印系统能够提供可靠的非对称检测，系统鲁棒性高。
The theory analysis and simulation results demonstrate that the asymmetric watermarking system can provide reliable asymmetric detections, and it has high robustness .
分析了几种典型的对称数字水印算法，并且对对称水印加密算法和非对称水印加密算法的特点进行比较分析。
This paper is devoted to some typical asymmetric watermarks and some basic characteristics of asymmetric watermark and symmetric watermark.
文章分析了非对称水印的基本特征，并对一些非对称方案，包括非对称水印算法和非对称水印协议进行了讨论。
This paper discusses some basic characters of asymmetric watermark, and review some asymmetric watermarking algorithms and asymmetric watermarking protocols.
而许多实际的应用都要求非对称的数字水印方案，即水印嵌入时使用私人密钥，水印检测时只需要一个公开密钥。
However, in many applications it needs an asymmetric scheme, where a private key is used for watermark embedding, and a public key is used for watermark detection.
提出了一种基于混沌动力系统同步原理的非对称数字水印构造方法。
A method of making an asymmetric digital watermarking based on chaotic synchronization theory is proposed in this paper.
在传统扩频水印技术的基础上，我们讨论了一种基于相位偏移的非对称数字水印方案。
Based on traditional spread-spectrum watermarking, we discuss an asymmetric watermarking scheme using random-phase-shift.
近年来提出了不少数字水印方案，但是它们中大部分都是对称的，即用于水印嵌入和水印检测的密钥是相同的。
Several different schemes have been proposed in the last few years, but most of them are symmetric, i. e. , the key used for watermark embedding is just the same used for watermark detection.
近年来提出了不少数字水印方案，但是它们中大部分都是对称的，即用于水印嵌入和水印检测的密钥是相同的。
Several different schemes have been proposed in the last few years, but most of them are symmetric, i. e. , the key used for watermark embedding is just the same used for watermark detection.
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