OMA DRM技术体系研究综述
doi: 10.3724/SP.J.1146.2006.01680
Overview of Study on the Technical Architecture of OMA DRM
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摘要: 为了对最新发布的开放移动联盟(OMA)数字版权管理(DRM)标准的技术体系结构有一个系统全面的认识，积极推动我国DRM标准的制定和数字内容保护技术的应用研究，该文在深入研究最新发布的OMA DRM2. 0规范的基础上，对OMA DRM技术体系结构：版权对象获取协议(ROAP)、安全模式、体系结构、内容格式和版权描述语言进行了详细分析，然后从综合角度给出一个系统全面的OMA DRM工作机制：OMA DRM 工作流程和原理，最后，对OMA DRM性能做了详细分析：OMA DRM2. 0和OMA DRM1. 0的主要区别，以及OMA DRM2. 0的尚待改进之处。Abstract: In order to have a thorough understanding of the technical architecture of OMA DRM specification, and to actively promote creation of the Chinese DRM standard and application research of digital content protection technology, a systematic approach of OMA DRM is presented. The following functions of the latest release of OMA DRM2.0 are analyzed: rights object acquisition protocol, security model, architecture, content format and rights expression language. Then, these features are synthesized to present a complete working mechanism of OMA DRM: working flow and principle of OMA DRM. Finally, the capabilities of the latest release are analyzed by presenting the main difference between OMA DRM2.0 and OMA DRM1.0, and the limitations of OMA DRM2.0.
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