电信科学 ›› 2018, Vol. 34 ›› Issue (11): 133-138.doi: 10.11959/j.issn.1000-0801.2018283

• 智慧家庭专栏 • 上一篇    下一篇

IPTV超高清视频中的DRM技术研究与应用

沈晶歆   

  1. 中国电信股份有限公司上海研究院,上海 200122
  • 修回日期:2018-11-14 出版日期:2018-11-01 发布日期:2018-12-06
  • 作者简介:沈晶歆(1974-),女,中国电信股份有限公司上海研究院高级工程师,主要研究方向为超高清视频。

Research and application of DRM technology in IPTV UHD video

Jingxin SHEN   

  1. Shanghai Research Institute of China Telecom Co.,Ltd.,Shanghai 200122,China
  • Revised:2018-11-14 Online:2018-11-01 Published:2018-12-06

摘要:

对OMA、微软、Intertrust、ChinaDRM等不同DRM标准进行特点和差异性比较,提出DRM应用的需求场景,分析了DRM关键技术,基于业界普遍使用的高安机顶盒对IPTV高清视频领域DRM保护需求进行架构设计,创新性地提出了高安机顶盒的硬件信任根、远程下载终端密钥、双重加密的内容密钥,能够充分利用目前机顶盒生产过程中已有的芯片OTP数据烧写流程,既充分考虑运营中的可实施性,又保障了DRM安全性,最后制定了DRM内容解密的业务流程并给出实施案例。

关键词: DRM, IPTV, UHD

Abstract:

The characteristics and differences of different DRM standards such as OMA,Microsoft,Intertrust,and ChinaDRM were compared.The requirements of DRM applications were presented.The key technologies of DRM were analyzed.Based on the high-tech set-top box commonly used in the industry,the architecture of DRM protection in IPTV high-definition video was designed.The hardware trust root of high security set-top box,remote download terminal key,double-encrypted content key and other mechanisms was put forward innovatively.Finally,the business process of decrypting DRM content was formulated and an implementation case was given.

Key words: DRM, IPTV, UHD

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