摘要
针对现有基于授权域的数字版权保护方法中授权节点间不具备独立性的问题,降低了版权保护的灵活性,从而提出了一种基于授权域的密钥管理模型。模型支持多设备授权并满足授权节点间独立性,即一台设备加入或离开授权域与其他域成员设备无关,提高了版权保护的灵活性。基于该密钥管理模型,提出了应用系统框架以及版权保护协议;进一步,提出了满足该模型的两种密钥管理方法,并分析比较其性能。通过对系统的性能分析,验证了该密钥管理模型的有效性。
In order to solve the non-independence problem between authorized nodes which would reduce the flexibility in existing authorized domain-based DRM methods,this paper proposed an authorized domain-based key management model. The model supported multi-device authorization and satisfied the independence between authorized nodes. A device should be transparent to other intra-domain devices when it registered or removed from the domain,which improved the flexibility. Based on the key management model,it proposed an application system architecture and the copyright protection protocols. Moreover,it proposed two kinds of key management methods which satisfied the model and analyzed and compared their performance. By analyzing the system performance,the result verifies the effectiveness of the key management model.
出处
《计算机应用研究》
CSCD
北大核心
2016年第3期866-869,881,共5页
Application Research of Computers
基金
北京市教委科技计划面上项目(KM201411232012)
国家"863"计划资助项目(2012AA013102)
关键词
数字版权保护
密钥管理
授权域
内容共享
多设备
digital rights management
key management
authorized domain
content sharing
multi-device
