| 购买者透明的非对称扩频指纹方案 |
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| 引用本文： | 朱岩,杨永田,叶志远,邹维,冯登国.购买者透明的非对称扩频指纹方案[J].电子学报,2006,34(6):1041-1047. |
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| 作者姓名： | 朱岩 杨永田 叶志远 邹维 冯登国 |
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| 作者单位： | 1. 北京大学计算机科学技术研究所,北京 100871;2. 哈尔滨工程大学计算机科学与技术学 院,黑龙江哈尔滨 150001;3. 中科院研究生院信息安全国家重点实验室,北京 100049 |
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| 摘 要： | 数字指纹的透明性是指在购买者不知道指纹存在的情况下实现数字指纹对多媒体的保护,它是电子交易的一项重要要求.依据所提出的安全二进制定点补码表示方法以及具有加法同态性质的密码系统,本文提出了一种基于扩频编码的非对称指纹方案,通过分析表明方案具有购买透明性、缺席审判、不可否认性和陷害性等特点.
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| 关 键 词： | 数字指纹 非对称指纹 叛逆跟踪 扩频编码 加法同态 |
| 文章编号： | 0372-2112（2005）06-1041-07 |
| 收稿时间： | 2005-01-15 |
| 修稿时间： | 2005-01-152006-01-18 |
An Asymmetric Spread-Spectrum Fingerprinting with Buyer Transparency |
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| ZHU Yan,YANG Yong-tian,YE Zhi-yuan,ZOU Wei,FENG Deng-guo.An Asymmetric Spread-Spectrum Fingerprinting with Buyer Transparency[J].Acta Electronica Sinica,2006,34(6):1041-1047. |
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| Authors: | ZHU Yan YANG Yong-tian YE Zhi-yuan ZOU Wei FENG Deng-guo |
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| Affiliation: | 1. Institute of Computer Science and Technology,Peking University,Beijing 100871,China;2. Computer Science and Technology School,Harbin Engineering University,Harbin,Heilongjiang 150001,China;3. The Chinese Academy of Sciences,State Key Laboratory of Information Security,Beijing 100049,China |
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| Abstract: | Transparency of the fingerprinting is one of important requirements for electronic exchange to achieve the protection of multimedia content assuming the purchaser may not know the existence of fingerprinting.In terms of the security format for two's Complement fixed-point numbers and additive homomorphic cryptosystem,this paper proposes an asymmetric fingerprinting scheme based on spread-spectrum coding.The analysis shows that the scheme provides many advantages,such as purchase transparency,absent trial,no-repudiation and no-framing and so on. |
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| Keywords: | digital fingerprinting asymmetric fingerprinting tracing traitor spread spectrum code additive homomorphism |
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