GY/T 277-2019 代替 GY/T 277—2014
视音频内容分发数字版权管理技术规范
Technical specification of digital rights management for video audio content distribution
2019 - 07- 05 发布
2019-07-05 实施
前言.........................................1
引言.........................................1
1范围..........................................1
2规宼性引用文件.....................................1
3术语和定义.......................................2
4编略诰.........................................3
5体系架构........................................3
5.1概述.......................................4
5. 2逻辑架构....................................4
5.3内容授权.....................................4
5. 4密胡管理....................................6
5. 5安全机制....................................7
5. 6值任模墨....................................7
6内容加密........................................8
6.2    内容加密方法..................................8
6.3内容封装格式..................................13
7许可证格式......................................15
7.1怦可证结构...................................15
7.2许可证编码...................................16
8许可证获取协仪....................................23
8.1概述......................................23
8.2许可证狭取埔求.................................23
8.3许可证获取响应.................................25
8. 4状右信息...................................27
8. 5消息签名机制.................................27
9 DRMi（务端...................................28
9.1概述......................................28
9.2密钥冋步物议..................................28
9.3密胡査询协议..................................31
10脚客户端......................................34
10.2    应用模块..................................35
10.3    NtM功能模块...............................35
10.4    DW客户端运行环境.............................35
10.5    DRM功能接口.............................. 36
10.6    DHH客户运行环境接口.......................... 36
附录A （规范性附录）敬字证书格式、在线证书认证协议及证书撤销列表格式........37
A. 1 概述....................................37
A.2数字证书格式..................................37
A.3 OCSP协议.................................45
附录B （规葩性附录〉    密码算法..........................49
附录C （规截性附录）DRM客户瑞功能接口......................51
C.I常量定义...................................51
C.2数据结构定义.................................52
C.3接口定义...................................53
C. 4接口调用流程.................................56
附录D （规葩性附录）DW4客户堆运行环境接口....................57
D. 1常量定义...................................57
D.2数据钻构定义..................................60
D.3接口定义...................................61