(计算机系统结构优秀论文)家庭网络DRM研究

上海交通大学

硕士学位论文

家庭网络DRM研究

姓名：李敏

申请学位级别：硕士专业：计算机系统结构指导教师：刘胜利

20060101

iv

家庭网络DRM 研究

摘 要

家庭网络DRM 是DRM 领域发展的新方向它进行以家庭为单位

的数字版权管理

具有很多优点

适合于数字家庭和家庭网络应用中

内容保护是数字家庭和家庭网络中必须解决的安全问题

很多公司组织都在征集和制定这方面的方案和标准因此家庭网络DRM 的研究很有应用意义

本文是国内较早介绍和研究该领域的文章本文的工作围绕家庭网络DRM 主题展开前几章介绍该领域后几章的工作着眼于该领域存在的问题和发展趋势上文中主要研究工作和成果如下

1.在阅读了大量文献和项目经验的基础上总结归纳了该领域研究

的主要问题和方法

建立了功能模型

系统逻辑模型信任关系和攻

击场景

介绍了几个典型方案并从技术方面分析其优缺点最后对该

领域的研究方向和趋势进行了展望这些介绍对于国内了解该领域具有较好参考价值

2.针对移动设备的管理和集中式方案存在的问题提出一个基于双线性配对的在线/

离线代理签名方案来解决该方案所需的带宽和在线运算优于同类方案适合家庭网络DRM 中的应用

3.针对xCP 方案存在的问题

设计了用户控制层及相关协议所

设计的用户控制层能和原方案很好地融合所需增加的存储量和计算量都很少且支持用户扩展定义

4.针对家庭网络DRM 和典型DRM 较长时间内将共存但接口不完

善的问题在建立系统模型的基础上通过修改数字许可证提出了一个整合方案并进行了性能分析关键词 家庭网络DRM DRM 家庭网络数字家庭认证域代理签名用户控制层

v

RESEARCH ON HOME NETWORK DRM

ABSTRACT

Home network DRM is a new direction of DRM field, and is applied properly in home network and digital home. Home network DRM manages the copy rights based on the devices in the home network as a whole, and has many advantages. Content protection is the security problem that must be solved in digital home and home network, so the research on home network DRM has great significance. Currently many companies and organizations are devoted into developing standards and solutions on home network DRM.

This thesis is the first domestic paper addressing home network DRM.The research work of the thesis is around home network DRM field. The first several chapters will introduce the status of this field, and the remaining chapters will try to solve the issues and propose solutions for trends and directions. The research work of this thesis is as follows:

1We summarize the main research problems and research methods in the field, and propose function model, system logical model, trust relationship and attack senarios, based on having read many related literatures. Then we introduce several typical solutions, and give an incisive analysis of advantages/disadvantages from technical aspects. Finally we analyze and summarize the trends, noteworthy issues and future directions in the field. It’s a brand new field, so this thesis will be a guide for domestic researchers.

2We point out the existing problems in centralized management solutions and mobile device management, and propose an online/offline proxy signature scheme suitable for home network DRM application. The scheme is based on bilinear pairing, which requires less bandwidth and less online computation compared with other proxy signature solutions.3We point out the existing problems in xCP solution, and design user control level and corresponding protocols. The designed user control level