【作者】 郑松坚；

【导师】 蔡伟鸿；

【作者基本信息】 汕头大学 ， 计算机软件与理论， 2006， 硕士

【摘要】 随着网络和电子商务的发展，网上传播的数字内容存在着大量的盗版和侵权问题，对数字内容的交易进行版权保护，成为一个迫切需要解决的问题。另一方面，移动终端也在快速发展，终端用户共享资源也变得越来越频繁，这样也要求在移动终端实现对数字内容的版权保护。但现在的数字版权保护技术和数字版权保护系统存在缺点，特别在移动终端上更加明显，这也是数字内容的商业模式至今未成熟起来的原因。 本文首先论述了基于个人电脑的数字内容安全交易模型，此模型在安全性达到要求的基础上，消除了一般数字版权保护系统中授权用户容易获得数字内容的解密密钥、数字内容缺乏通用性和未保证用户购买商品匿名性的缺点。其次从移动终端角度，分析了移动终端硬件、软件等环境的特殊性以及将基于个人电脑的数字内容安全交易模型移植到它之上的可行性，并提出了基于移动终端的数字内容安全交易模型。它是一种纯软件的解决方法，能克服一般数字版权系统的缺点，相对于目前的移动数字版权管理系统需要辅助硬件来支持也有一定的优势。本文最后讨论了在移动终端模拟器上利用自主开发的客户端应用程序进行仿真实验，测试了此模型，能达到预期的效果。 在仿真实验中，采用J2ME作为开发语言，它相对于其他语言有移植性强和开发速度快等优点，而且在机器指纹获取方面也能发挥重要的作用。 相信本文对“移动终端数字内容安全交易的商业模式及其安全性需求”的研究具有重大的意义。更多还原

【Abstract】 With the development of Internet and electronic commerce, a great deal of pirate and tort about digital contents exists on Internet, so it is urgent to do something to protect copyright of digital contents. On the other hand, mobile terminals have developed fast and resource is shared more and more frequently among users of terminals so that it is also needed to realize copyright protection of digital contents in mobile terminals. However, system of the digital rights management is not perfect enough to solve the problem at present, especially in the area of mobile terminal, which is the reason that the commercial pattern of digital content has not been developed naturally.At first in this paper a model of digital content’s secure trade based on personal computer is discussed. The model has the same security as general system of digital rights protection, and eliminates the shortages of the common digital rights management system: getting the decrypted key of digital content by legal user easily, lacking generality of digital content and shopping on Internet without anonymousness. Secondly at a different angle, this paper analyses the particularity of hardware, software and so on of mobile terminal, and the feasibility of transplantation from PC to mobile terminal of the secure trade model of digital content. Then the new model of secure trade of digital content has been put forwarded. This is a resolvent by only software. It doesn’t only eliminate the shortages of system of common digital rights management, but also has more advantages than present system of mobile digital rights management which needs support by extra hardware. At last, the model is tested through the client software on the emulator of mobile terminal and the conclusion is that the model has the same effect as expected.At the emulating test, J2ME is used as developing program which has more advantages of transplantation and is faster at developing rapidity than other program, and plays an important role at getting the fingerprint of mobile terminal.It is trusted that the paper makes significance on the research of commercial mode of digital content’s secure trade based on mobile terminal and its security.更多还原