【作者】 魏凌波；

【导师】 杨波；

【作者基本信息】 西安电子科技大学 ， 密码学， 2005， 硕士

【摘要】 随着IT 技术和电子商务的蓬勃发展,数字产品的版权保护成为一个急待解决的重要问题、也是一个热门研究课题,同时它还是信息隐藏发展的内在驱动力。数字指纹和数字水印是版权保护的两个主要技术。叛逆者追踪是一种可以追踪的广播加密算法,也属于数字指纹的范畴。本文主要对数字指纹作了深入研究,主要内容包括以下几个方面: 介绍信息隐藏与数字指纹研究的背景和意义;阐明了密码学与信息隐藏和数字指纹三者之间的关系。叙述了信息隐藏的分类、模型,并概述了信息隐藏技术的特点及其应用范围。简介了数字指纹的要求与特性、及其发展现状。设计了两种具有代表性的数字指纹方案,并介绍了一种基于盲签名的数字指纹方案。介绍了一种基于中国剩余定理的叛逆者追踪方案,并对Boneh D 和Franklin M 提出的叛逆者追踪方案[25]做了改进,使之能更好地适用于实际。更多还原

【Abstract】 With the rapid development of new IT technologies and electronic commerce, intellectual property for digital content has been a crucial issue. This problem also becomes an internal motive for information hiding. Fingerprinting and watermarking are the most important two main methods. Traitor tracing is a kind of broadcast with traceability, which falls into the category of fingerprinting. This paper will focus on fingerprinting, mainly including the following contents: Introduce the background and significant of studying information hiding and digital fingerprinting, and their relation with cryptology. Specify the class and model of information hiding, and then depict the features, development and application of this technology. The requirement, peculiarity and current conditions of fingerprinting are also introduced. Two typical fingerprint schemes are proposed. A scheme based on the blind signature is introduced. A traitor tracing scheme based on the Chinese remainder theorem is introduced. Propose another scheme based on the B-F scheme.更多还原