标题: | 可替换式数位版权管理系统及其嵌入式装置实作 A DRM Switchable System with Embedded Device Implementation |
作者: | 吴巧琳 Chiao-Lin Wu 杭学鸣 Hsueh-Ming Hang 电子研究所 |
关键字: | 数位版权管理;可替换式系统;嵌入式装置;实作;Digital Rights Management;Switchable System;Embedded Device;Implementation |
公开日期: | 2006 |
摘要: | 数位版权管理(digital right management, DRM)是一种概念,目的是控制数位媒体的消费和散布,现在嵌入式媒体的装置越来越普遍,也增加了数位版权管理的需求,因为在嵌入式媒体装置上,实作数位版权管理系统是一种趋势,各家公司各自发展了自己的数位版权管理系统,但这个现象产生了不同数位版权管理之间的沟通问题,除此之外,对消费者而言,不能够在同一装置上使用不同的数位版权管理系统,带来了不方便。 在这篇论文中,我们提出了一种可替换式的数位版权管理系统,来达到在同一装置上,使用不同数位版权管理的目的,在我们开始设计之前,我们必须先了解平台的特性,并且分析一些数位版权管理系统的架构,由此,我们找出最适合平台特性的一种数位版权管理系统,来做结合,然后我们根据这一种数位版权管理系统,提出一种可替换式的数位版权管理设计的概念,我们设计出一个数位版权管理模组的载入机制,这个载入机制能够确认数位版权管理模组的合法性,并且把数位版权管理的工作放到数位版权管理的模组中,这个系统整合了下载工具的概念和OMA架构,有此来取得弹性和复杂性的平衡,最后,我们也在嵌入式系统平台上实作这个机制,用来证明这个机制的弹性功能。 Digital Rights Management (DRM) is a concept for controlling the distribution and consumption of digital media. As embedded multimedia devices are becoming popular, there are strong demands for the light-weight DRM systems that can run smoothly in a resource-limited environment. Because implementing the DRM in the embedded device becomes a trend, many companies create their private DRM on their device. However, this phenomenon causes the problem of interoperability between different DRM systems. In addition, from the consumer viewpoint, users can not use all kinds of DRM system on the same device. This is inconvenient for users. In this thesis, we propose a switchable DRM system to achieve the usage of different DRM systems on the same device. Before we design a switchable DRM system, we must understand the feature of the platform and analyze the structure of some DRM systems. After understanding them, we find an optimum integration of the platform and one DRM system. Then, we based on the designed DRM system to propose the concept of the DRM switchable design. We design an universal DRM module loader. This loader checks the validity of a loadable DRM module, and it defers all the other DRM tasks to the loaded module. This system integrates the concept of downloadable tools and the OMA architecture to provide a balance between flexibility and complexity. We also implement the mechanism on an embedded evaluation board to demonstrate its feasibility. |
URI: | http://140.113.39.130/cdrfb3/record/nctu/#GT009411657 http://hdl.handle.net/11536/80571 |
显示于类别: | Thesis |
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