【作者】 谢平；

【导师】 黄金国；

【作者基本信息】 华中科技大学 ， 工业工程， 2007， 硕士

【摘要】 随着无线网络和移动增值业务的发展,数字内容易于复制的特点导致数字内容所有者的权益难以得到保护的问题日益突出,为使整个移动增值业务行业健康有序地发展,需要行之有效的DRM(Digital Rights Management,数字版权管理)系统来解决上述问题。由于移动业务灵活多变和个性化的特点,目前最可行的移动DRM实施方案是把数字内容的强制保护放在消费终端上进行。在用户终端上构建一个可信任的计算环境,将DRM内容在其中使用,从而强制完成对于DRM内容使用的许可和限制。本篇论文以开放移动联盟的OMA DRM v2.0协议为背景,重点介绍了基于Java SIM卡的移动终端的DRM的设计与实现。本文的主要工作如下:(1)分析了OMA DRM v2.0标准框架下移动DRM系统的体系结构和内容保护机制,提出了结合SIM卡技术部署DRM Agent的移动DRM体系结构模型。(2)给出了DRM Agent的结构以及DRM的实施过程和系统流程。研究了Java SIM卡下载过程中的安全认证机制以及手机与卡建立安全通道的方式。(3)研究了Java SIM卡功能模块的划分,密钥和版权对象RO等的文件存储机制,定义了SIM卡与手机通信的API以及SIM卡字节码与版权描述语言REL的对应关系。(4)在智能手机MS Smartphone2003平台上开发和部署了一个移动终端视频播放DRM功能的实例。(5)对该方案的优势和特点作了总结,并提出了还需要进一步研究的环节。更多还原

【Abstract】 With the development of wireless network and value-added services, the problem, that is hard to protect the interests of digital content owners, is becoming more and more critical as digital contents are easily copied. For the healthy development of the entire mobile value-added service industry, we need an effective DRM (Digital Rights Management) system.Because of the flexible and characteristic features in the mobile services, the feasible solution is deploying the data protection in consumers’terminals. The license and restriction of the DRM content will be implemented by building a trusted computing environment on the user’s terminal and using the DRM content in it.Based on the protocol OMA DRM v2.0 of the Open Mobile Alliance,this paper designs and Implements DRM on Java SIM card-based mobile terminals. The main works of this thesis are summarized as following: (1) The architecture and content protection mechanism of the mobile DRM system are analysed. The mobile DRM architecture model combining SIM card technology is raised too. (2) The structure, implementation process and work flow of DRM agent are described. The secure authentication mechanism during the Java SIM card downloading and the establishment of safe channel between the phone and the card are presented. (3)The function module of Java SIM card, the file storage mechanism of key and RO, the definition of API on card for mobile phone, the relation between byte code in card and REL are displayed. (4) An example of the new copyright protection technology is Implemented on MS smartphone Smartphone2003 platform. (5) At last, the advantages and features of this technology are reviewed, and the further study is also put forward.更多还原