| 基于离散对数的水印检测协议 |
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| 引用本文： | 刘永亮,高文,黄铁军,姚鸿勋.基于离散对数的水印检测协议[J].计算机辅助设计与图形学学报,2006,18(9):1322-1326. |
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| 作者姓名： | 刘永亮 高文 黄铁军 姚鸿勋 |
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| 作者单位： | 1. 哈尔滨工业大学计算机科学与工程系,哈尔滨,150001
2. 中国科学院计算技术研究所数字媒体中心,北京,100080 |
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| 基金项目： | 国家自然科学基金;国家高技术研究发展计划(863计划) |
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| 摘 要： | 提出基于离散对数的水印检测协议，以解决通常的水印检测方案泄漏敏感信息（如水印和嵌入位置）的问题．在协议中，水印被隐藏在模指数中．标准的水印与数字作品之间的相关性判定被转换成它的等价形式，证明者通过证明此等价形式，以使得验证者相信水印的存在．在计算离散对数困难的假定下，协议没有泄漏任何敏感信息并且被证明是零知识的．
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| 关 键 词： | 数字水印 水印检测 离散对数 零知识协议 安全 |
| 收稿时间： | 2005-10-24 |
| 修稿时间： | 2006-01-16 |
Discrete Logarithm-Based Watermark Detection Protocols |
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| Liu Yongliang,Gao Wen,Huang Tiejun,Yao Hongxun.Discrete Logarithm-Based Watermark Detection Protocols[J].Journal of Computer-Aided Design & Computer Graphics,2006,18(9):1322-1326. |
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| Authors: | Liu Yongliang Gao Wen Huang Tiejun Yao Hongxun |
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| Affiliation: | 1.Department of Computer Science and Engineering, Harbin lnstitute of Technology, Harbin 150001; 2.Digital Media Center, Institute of Computing Technology, Chinese Academy of Sciences, Beijing 100080 |
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| Abstract: | This paper proposed some discrete logarithm-based watermark detection protocols to tackle the problem of disclosing sensitive information like the watermark and the embedding location in the conventional watermark detection scheme. In the protocols, the watermark was hidden in the modular exponential. The standard correlation decision between the watermark and the digital work was converted into its equivalent. By showing that the equivalence is satisfied, the prover convinced the verifier of the presence of the watermark. With the assumption that computing discrete logarithm is intractable, the protocols do not reveal any sensitive information and are proven to be of zero-knowledge. |
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| Keywords: | digital watermark watermark detection discrete logarithm zero-knowledge protocol security |
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