GY/T 335-2020 English PDF

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GY/T 335-2020: (Video and audio content distribution digital rights management standard compliance test)
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Basic data

Standard ID: GY/T 335-2020 (GY/T335-2020)
Description (Translated English): (Video and audio content distribution digital rights management standard compliance test)
Sector / Industry: Radio, Film & TV Industry Standard (Recommended)
Word Count Estimation: 94,980
Date of Issue: 2020-11-09
Date of Implementation: 2020-11-09
Regulation (derived from): Broadcasting-TV announcement (2020) No. 76
Issuing agency(ies): State Administration of Radio and Television

GY/T 335-2020: (Video and audio content distribution digital rights management standard compliance test)

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Digital rights management for video audio content distribution -Standard compliance test The People's Republic of China Radio, Television and Network Audiovisual Industry Standards Video and audio content distribution digital rights management standard compliance test 2020-11-09 released 2020-11-09 implementation Issued by the State Administration of Radio and Television 1 Scope...1 2 Normative references...1 3 Terms and definitions...1 4 Abbreviations...2 5 Overview...2 6 Standard compliance test content...3 6.1 Content encryption method...3 6.2 License format...4 6.3 License acquisition agreement...4 6.4 DRM Server...4 6.5 DRM Client...4 7 Standard Compliance Test...5 7.1 Overview...5 7.2 Product function standard compliance test...5 7.3 System operation standard compliance test...5 Appendix A (Normative) Product Function Standard Compliance Test Method...6 A.1 Content encryption method and packaging format test...6 A.2 License format and acquisition protocol test...23 A.3 Key synchronization and key query protocol test...71 Appendix B (Normative) System Operation Standard Compliance Test Method...84 B.1 Content encryption method and packaging format test...84 B.2 License acquisition test...88 B.3 Key synchronization request test...89

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" Drafting. Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying these patents. This document is under the jurisdiction of the National Radio, Film and Television Standardization Technical Committee (SAC/TC 239). Drafting organizations of this document. National Radio and Television Research Institute, China Central Radio and Television, Communication University of China, Shanghai Hi Haisi Technology Co., Ltd., Intel (China) Co., Ltd., Alibaba (China) Co., Ltd., Wasu Digital TV Media Group Co., Ltd., Guangdong South New Media Co., Ltd., BesTV Network TV Technology Development Co., Ltd., Hunan Happy Sunshine Interactive Entertainment Media Co., Ltd., Beijing Aiqiyi Technology Co., Ltd., Beijing Jiangnan Tianan Technology Co., Ltd., Beijing Digital Taihe Technology Co., Ltd. Ren company, Beijing Digital Video Technology Co., Ltd., Beijing Yongxin Shibo Digital TV Technology Co., Ltd., Beijing Anshiwang Information Technology Co., Ltd. The company, Shanghai Guomao Digital Technology Co., Ltd., Liaoning Radio and Television Station, Shanghai Culture, Radio, Film and Television Group Co., Ltd. The main drafters of this document. Ding Wenhua, Guo Peiyu, Lin Weiguo, Wang Lei, Wang Bing, Sui Aina, Shang Wenqian, Zhou Jing, Cao Jianxiang, Liang Zhijian, Mei Xuelian, Wu Di, Shenyang, Zhang Zhijun, Xue Ziyu, Zhang Jiekai, Liu Mengyu, Wang Huiqin, Feng Hanwen, Jiang Tao, Wang Yuanyuan, Jiang Pengfei, Zhang Yujuan, Zhao Peng, Chen Liang, Ran Dawei, Shao Qifeng, Tang Yi, Liu Guangbin, Chen Zhiye, Jiang Qun, Chen He, Chen Gang, Zhao Yunhui, Ma Jiwei, Liu Qi, Wang Pei, Zheng Lifang, Zhang Jing, Tian Xuebing, Liu Haowei, Zhang Peng, Fan Tao, Gao Hongpeng, Wu Nanshan. Video and audio content distribution digital rights management standard compliance test

1 Scope

This document specifies the compliance test content and test methods of GY/T 277-2019. This document is applicable to the compliance test of GY/T 277-2019.

2 Normative references

The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated reference documents, Only the version corresponding to that date is applicable to this document; for undated references, the latest version (including all amendments) is applicable to this document file. GY/T 277-2019 Technical Specification for Digital Rights Management of Video and Audio Content Distribution

3 Terms and definitions

The terms and definitions defined in GY/T 277-2019 and the following are applicable to this document. 3.1 Content encryption server The entity that encrypts digital media content in the DRM server. The implementation form includes, but is not limited to, dedicated equipment, software services, etc. 3.2 Content authorization server The entity that queries the content encryption key from the key gateway in the DRM server and encapsulates it into a license and sends it to the DRM client. The implementation forms include But not limited to special equipment, software services, etc. 3.3 Key management server The entity responsible for receiving the content encryption key information of the content encryption server and performing safe storage and distribution in the DRM server, realizes the shape Types include but are not limited to special equipment, software services, etc. 3.4 Key gateway server The DRM server is responsible for receiving the content encryption key synchronized by the key management server, and receiving the key query of the content authorization server Entities, implementation forms include but are not limited to special equipment, software services, etc. 3.5 OCSP server The entity that provides the OCSP response to the DRM server. The implementation form includes, but is not limited to, dedicated equipment, software services, etc. 3.6 Testing platform A platform for standard compliance testing of the digital rights management system for video and audio content distribution.

4 Abbreviations

The following abbreviations apply to this document. CA Certification Authority CBC Cipher Block Chain CEI Content Encryption Information (Content Encryption Information) ChinaDRM China Digital Rights Management (China Digital Rights Management) DASH uses the HTTP protocol to transmit dynamic adaptive streaming media protocol (Dynamic Adaptive Streaming over HTTP) DRM Digital Rights Management (Digital Rights Management) HTTP Hyper Text Transport Protocol (Hyper Text Transport Protocol) HLS HTTP-based real-time streaming media protocol (Http Live Streaming) ID unique identifier (Identifier) MPD Media Presentation Description MPEG Moving Picture Experts Group (Moving Picture Experts Group) OCSP Online Certificate Status Protocol (Online Certificate Status Protocol) PMT Program Mapping Table TS Transport Stream URI Universal Resource Identifier (Uniform Resource Identifier) URL Uniform Resource Locator (Uniform Resource Locator)

5 overview

Video and audio content distribution digital rights management system standard compliance testing includes. content encryption method and format packaging testing, content authorization Server test, key management server test, key gateway server test, DRM client test five parts. Number of video and audio content distributed Figure 1 shows the compliance test framework of the word copyright management system standard.

6 Standard compliance test content

6.1 Content encryption method 6.1.1 Overview The protected digital content in the system should meet the content encryption and packaging requirements specified in Chapter 6 of GY/T 277-2019, and the encrypted content stream Or the media description file should contain the content identification and the information for obtaining the license. The extended data of the basic stream of the encrypted content should contain internal The content encryption information CEI is used to indicate how the subsequent video is encrypted. The CEI should include the encryption identifier and the current content encryption key identifier Symbol, the next content encryption key identifier, and the initial vector corresponding to the current content encryption key. Specific CEI grammar requirements should meet The grammatical format of Table 1 in GY/T 277-2019.CEI_DATA, the encrypted coded data needs to be converted to prevent ambiguity conflict of the start code. The conversion rules must meet the requirements of 6.2.5 in GY/T 277-2019. 6.1.2 TS packaging method When the MPEG-TS encapsulation format is used for transmission, the DRM descriptor structure should be set in the PMT table. The descriptor should specify the encrypted content format, Encryption method, license acquisition URI and other information. The specific DRM descriptor grammar format should comply with the provisions of Table 3 in GY/T 277-2019, where The value range of the video encoding format field of the encrypted content shall comply with the provisions of Table 4 in GY/T 277-2019; the encryption method of the video content shall comply with Comply with the provisions of Table 5 in GY/T 277-2019. For AVS/AVS2 encoded content, the content encryption method should meet the requirements of 6.2.1 and 6.2.2 in GY/T 277-2019, and the content is encapsulated The format should meet the requirements of 6.3.1 in GY/T 277-2019. For H.264 encoded content, the content encryption method should meet the requirements of 6.2.1 and 6.2.3 in GY/T 277-2019, and the content encapsulation format The formula should meet the requirements of 6.3.1 in GY/T 277-2019. For H.265 encoded content, the content encryption method should meet the requirements of 6.2.1 and 6.2.4 in GY/T 277-2019, and content encapsulation The format should meet the requirements of 6.3.1 in GY/T 277-2019. 6.1.3 MPEG-DASH For content distributed using the DASH protocol, the content packaging format should meet the requirements of 6.3.2 in GY/T 277-2019, and the content encryption format The formula should meet the requirements of 6.3.3 in GY/T 277-2019. For H.264 encoded content, the encryption method should meet the requirements of 6.2.1 and 6.2.3 in GY/T 277-2019; for H.265 encoded content, The encryption method should meet the requirements of 6.2.1 and 6.2.4 of GY/T 277-2019. 6.1.4 HLS For content distributed using the HLS protocol, the content packaging format should meet the requirements of 6.3.4 in GY/T 277-2019. For H.264 encoded content, the encryption method should meet the requirements of 6.2.1 and 6.2.3 in GY/T 277-2019; for H.265 encoded content, The encryption method should meet the requirements of 6.2.1 and 6.2.4 of GY/T 277-2019. 6.2 License format The license format shall comply with the provisions of 7.1 of GY/T 277-2019. The license code shall comply with the provisions of 7.2 of GY/T 277-2019. 6.3 License acquisition agreement 6.3.1 License acquisition request The format of the license acquisition request message sent by the DRM client to the content authorization server shall comply with the provisions of 8.2 in GY/T 277-2019. When the DRM client sends an illegal request, the content authorization server should have an abnormal fault tolerance mechanism, and the possible status information should comply with GY/T The provisions of 277-2019 in 8.4. 6.3.2 License acquisition response The format of the license acquisition response message sent by the content authorization server to the DRM client shall comply with the provisions of 8.3 of GY/T 277-2019. When the content authorization server sends an illegal response, the DRM client should have an abnormal fault tolerance mechanism, and the possible status information should comply with GY/T The provisions of 277-2019 in 8.4. 6.3.3 Message signature mechanism In the license acquisition agreement between the DRM client and the content authorization server, the license acquisition request sent by the DRM client and the content The license acquisition response sent by the authorization server needs to use a message signature mechanism, which should comply with GY/T 277-2019 ... ......

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