Abstract: A new security model of Digital Rights Management(DRM) for Set-top Box(STB) is proposed, in which content object and rights object are separated respectively, and the content object is encrypted by Content Encryption Key(CEK), while rights object is encapsulated by user’s device related key. Mutual authentication is realized for users’ and server’s trust management. Experimental results show that the technologies of cryptography, digital signature and authority management are developed for controlling the use of high definition contents, MTV, TV media magazines.

Key words: Digital Rights Management(DRM), Set-top Box(STB), digital content, license, data encryption

摘要： 提出一种面向机顶盒的数字版权管理安全模型。将数字内容与版权相分离，通过内容加密密钥保护数字内容，利用与客户设备信息相关的设备密钥保护每一份许可证，在用户与服务器之间实现双向认证。实验结果表明，该模型利用加解密技术、数字签名技术和授权管理等技术，能实现对高清内容、MTV、TV媒体杂志等数字内容的控制和管理。

关键词: 数字版权管理, 机顶盒, 数字内容, 许可证, 数据加密

CLC Number: 

• TP309