【作者】 佘党恩；

【导师】 徐海银；

【作者基本信息】 华中科技大学 ， 计算机应用技术， 2007， 硕士

【摘要】 随着计算机网络、信息技术和电子商务的蓬勃发展,数字时代下的数字媒体版权保护成为一个急待解决的重要问题和热门研究课题,同时它还是信息隐藏技术发展的内在驱动力。数字指纹是信息隐藏中数字版权标识的一个主要技术,是一种重要的数字媒体版权保护手段。软件作为一种特殊、保密、价值含量高的数字媒体,其版权保护显得更加迫切和复杂,于是针对软件的版权保护技术一直是近些年来研究的热点和难点。随着计算机网络和软件业的飞速发展,基于Web模式的软件架构将成为未来软件的发展趋势,数字指纹技术应用于软件版权保护能够有效防止网络环境中的恶意用户对软件的盗用和非法复制,提供软件的合法版权依据和对非法行为的追踪,从而确定其来源并进行审判。论文对数字指纹技术及其在软件版权保护中的应用做出了研究,介绍了信息隐藏与数字指纹技术研究的背景和意义,陈述了数字指纹技术及其应用在软件版权保护方面的国内外研究概况;讲述了信息隐藏与数字版权标识技术、数字版权管理(DRM)技术及其基本原理,针对对等网络(P2P)的版权问题给出了一种基于P2P模式的DRM系统体系结构和传输协议;阐述了数字指纹的基本理论和技术,包括基本概念和模型、攻击、指纹编码和指纹协议,指出了数字指纹领域有待进一步研究的方向;针对数字指纹技术的特点和优势,给出数字指纹应用在软件版权保护的软件指纹基本思想,包括软件代码指纹和软件行为指纹两种,并对两种技术的实现方案做出了一些探讨,针对软件代码指纹仿真实现了一个简单的应用系统,为软件指纹技术基本思想的实现提供了一定的参考价值。更多还原

【Abstract】 With the rapid development of computer network, information technology and electronic commerce, intellectual property for digital content has been a crucial issue, which contributes an internal impulse to hiding information. Digital fingerprint, one of the digital rights marking technologies in information hiding, is an important method to protect digital rights to the digital content.The protection of software copyright is far more urgent and complicated, for it is a unique kind of secret and high-value content. Therefore, the protection of software copyright becomes an increasingly important and difficult subject these days. With the rapid development of computer network and software industry, web based software architecture become the trend in the future. The applying of digital fingerprinting technology to the software copyright protection is far necessary for it can trace the illegal users and judge by the evidence proved from the embedded digital fingerprints in the software.Digital fingerprinting and its applying to the software copyright protection is focused in this paper, mainly including the following contents: First, the background and significance of hiding information and digital fingerprinting are introduced, and the general situation of both national and international researches on this subject is presented; Second, the principle of digital right marking and digital rights management (DRM) is introduced to propose a kind of P2P-based DRM system architecture and protocol; Then, the basic theory and technology of digital fingerprinting are summarized, including the definition, model, attack, coding and protocol; Finally, the software fingerprinting technologies and implementing methods are given, including two kinds: code-nested fingerprinting and software behavior fingerprinting, and an emulator of the code-nested fingerprinting methods is proceeded to prove the ideas.更多还原