1、 ETSI TR 102 825-13 V1.1.1 (2011-02)Technical Report Digital Video Broadcasting (DVB);Content Protection and Copy Management (DVB-CPCM);Part 13: CPCM Compliance FrameworkETSI ETSI TR 102 825-13 V1.1.1 (2011-02)2Reference DTR/JTC-DVB-222-13 Keywords BROADCAST, DVB ETSI 650 Route des Lucioles F-06921
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8、y the GSM Association. ETSI ETSI TR 102 825-13 V1.1.1 (2011-02)3Contents Intellectual Property Rights 5g3Foreword . 5g31 Scope 6g32 References 6g32.1 Normative references . 6g32.2 Informative references 6g33 Definitions and abbreviations . 7g33.1 Definitions 7g33.2 Abbreviations . 8g34 Introduction
9、8g34.1 Description of the CPCM system . 8g34.2 How the C Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http:/webapp.etsi.org/IPR/home.asp). Pursuant to the E
10、TSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Forewo
11、rd This Technical Report (TR) has been produced by Joint Technical Committee (JTC) Broadcast of the European Broadcasting Union (EBU), Comit Europen de Normalisation ELECtrotechnique (CENELEC) and the European Telecommunications Standards Institute (ETSI). NOTE: The EBU/ETSI JTC Broadcast was establ
12、ished in 1990 to co-ordinate the drafting of standards in the specific field of broadcasting and related fields. Since 1995 the JTC Broadcast became a tripartite body by including in the Memorandum of Understanding also CENELEC, which is responsible for the standardization of radio and television re
13、ceivers. The EBU is a professional association of broadcasting organizations whose work includes the co-ordination of its members activities in the technical, legal, programme-making and programme-exchange domains. The EBU has active members in about 60 countries in the European broadcasting area; i
14、ts headquarters is in Geneva. European Broadcasting Union CH-1218 GRAND SACONNEX (Geneva) Switzerland Tel: +41 22 717 21 11 Fax: +41 22 717 24 81 The Digital Video Broadcasting Project (DVB) is an industry-led consortium of broadcasters, manufacturers, network operators, software developers, regulat
15、ory bodies, content owners and others committed to designing global standards for the delivery of digital television and data services. DVB fosters market driven solutions that meet the needs and economic circumstances of broadcast industry stakeholders and consumers. DVB standards cover all aspects
16、 of digital television from transmission through interfacing, conditional access and interactivity for digital video, audio and data. The consortium came together in 1993 to provide global standardisation, interoperability and future proof specifications. The present document is part 13 of a multi-p
17、art deliverable. Full details of the entire series can be found in part 1 i.3. Introduction CPCM is a system for Content Protection and Copy Management of commercial digital content delivered to consumer products. CPCM manages content usage from acquisition into the CPCM system until final consumpti
18、on, or export from the CPCM system, in accordance with the particular usage rules of that content. Possible sources for commercial digital content include broadcast (e.g. cable, satellite, and terrestrial), Internet-based services, packaged media, and mobile services, among others. CPCM is intended
19、for use in protecting all types of content - audio, video and associated applications and data. CPCM specifications facilitate interoperability of such content after acquisition into CPCM by networked consumer devices for both home networking and remote access. This first phase of the CPCM specifica
20、tion suite addresses CPCM for digital Content encoded and transported by linear transport systems in accordance with TS 101 154 i.1. A later second phase will address CPCM for Content encoded and transported by systems that are based upon Internet Protocols in accordance with TS 102 005 i.2. ETSI ET
21、SI TR 102 825-13 V1.1.1 (2011-02)61 Scope The present informative document describes the Compliance Framework for the Digital Video Broadcasting (DVB) Content Protection and Copy Management (CPCM) system. Attention is drawn to those aspects of the CPCM specification which provide options for, and re
22、quire decisions by, a compliance body. The rationale behind the options is explained. Attention is also drawn to areas where it will be necessary for a CPCM compliance body to reach agreement with other compliance bodies to enable secure integration with their content protection systems or secure de
23、livery systems for the purposes of content acquisition into CPCM or export from CPCM. 2 References References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific ref
24、erences, the latest version of the referenced document (including any amendments) applies. Referenced documents which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause were valid at th
25、e time of publication ETSI cannot guarantee their long term validity. 2.1 Normative references The following referenced documents are necessary for the application of the present document. Not applicable. 2.2 Informative references The following referenced documents are not necessary for the applica
26、tion of the present document but they assist the user with regard to a particular subject area. i.1 ETSI TS 101 154: “Digital Video Broadcasting (DVB); Specification for the use of Video and Audio Coding in Broadcasting Applications based on the MPEG-2 Transport Stream“. i.2 ETSI TS 102 005: “Digita
27、l Video Broadcasting (DVB); Specification for the use of Video and Audio Coding in DVB services delivered directly over IP protocols“. i.3 ETSI TS 102 825-1: “Digital Video Broadcasting (DVB); Content Protection and Copy Management (DVB-CPCM); Part 1: CPCM Abbreviations, Definitions and Terms“. i.4
28、ETSI TS 102 825-2: “Digital Video Broadcasting (DVB); Content Protection and Copy Management (DVB-CPCM); Part 2: CPCM Reference Model“. i.5 ETSI TS 102 825-10: “Digital Video Broadcasting (DVB); Content Protection and Copy Management (DVB-CPCM); Part 10: CPCM Acquisition, Consumption and Export Mapp
29、ings“. i.6 ETSI TS 102 825-3: “Digital Video Broadcasting (DVB); Content Protection and Copy Management (DVB-CPCM); Part 3: CPCM Usage State Information“. i.7 ETSI TR 102 825-12: “Digital Video Broadcasting (DVB); Content Protection and Copy Management (DVB-CPCM); Part 12: CPCM Implementation Guidel
30、ines“. i.8 ETSI TS 102 825-4: “Digital Video Broadcasting (DVB); Content Protection and Copy Management (DVB-CPCM); Part 4: CPCM System Specification“. i.9 OMA-AD-DRM-V2-0-1: “DRM Architecture“. i.10 ETSI TS 102 825-9: “Digital Video Broadcasting (DVB); Content Protection and Copy Management (DVB-CP
31、CM); Part 9: CPCM System Adaptation Layers“. ETSI ETSI TR 102 825-13 V1.1.1 (2011-02)7i.11 ETSI TS 102 825-7 “Digital Video Broadcasting (DVB); Content Protection and Copy Management (DVB-CPCM); Part 7: CPCM Authorized Domain Management“. i.12 ETSI TS 102 825-14: “Digital Video Broadcasting (DVB); C
32、ontent Protection and Copy Management (DVB-CPCM); Part 14: CPCM Extensions“. i.13 ETSI TS 102 825-5: “Digital Video Broadcasting (DVB); Content Protection and Copy Management (DVB-CPCM); Part 5: CPCM Security Toolbox“. i.14 ETSI EN 300 468: “Digital Video Broadcasting (DVB); Specification for Servic
33、e Information (SI) in DVB systems“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the terms and definitions given in TS 102 825-1 i.3 and the following apply: C from none, to state-of-the-art security. Most C this step is usually accomplished by self-certi
34、fication. Next, the implementer determines that the device meets the requirements of the particular C that is, the licensing authority for the particular C it is typically the same body as the C the compliance body notifies the appropriate certificate authority. 7) The certificate authority issues a
35、 certificate to the manufacturer for embedding into the Compliant Device. The exact means by which certificates are issued and how they are embedded in the Compliant Device is determined by the compliance body for the C - requirements to use approved protected outputs; - requirements to use approved
36、 protected recording technologies in those instances where consumer copying is permitted. 6.1.2.1 Inherent compliance Inherent Compliance is where a CPCM device by virtue of its construction meets the C the level of resistance to circumvention attempts, requirements to protect the secrecy of keys, r
37、equirements to prevent compressed content from being available on user accessible buses in the clear. 6.2 CPCM extensions and private extensions Any extension functions are optional and CPCM devices are required to have these functions only to process content that requires the function. Whatever fun
38、ctionality they implement, extensions are still subject to the CPCM C 2) requiring the taking of a license to use C that is, the syntax and semantics, of the external CPS. The C export of high definition is not permitted. Controlled export/output subsumes both export to a controlled CPS and output t
39、o a digital consumption output secured by a controlled CPS. The C consumption uses outputs that are only applicable to consumption-only devices such as video displays; consumption is to external CPSs that do not permit content to be recorded; consumption through an analogue output invokes an analogu
40、e copy protection technology. A C ability to enable and disable the output on C.2.2.2 HD Analogue Consumption Outputs for high definition video for content items of the types necessitating this control; and ability to ensure that, if image constraint is signalled, a content item is passed through a
41、processing function that constrains the resolution of that content item prior to output of that content item on analogue consumption and export outputs. The constraining function is to be in accordance with the parameters specified in TS 102 825-3 i.6. Table 11: Rules for analogue consumption Topic
42、Rules Mapping Rules Analogue output for consumption is marked “Copy Never“ or “Copy No More“. It is not the intent to enable new analogue use cases. USI Control The USI signals whether or not a CPCM device is permitted to pass content to an analogue output. EXAMPLES Regarding Mapping Rules: A Pay-TV
43、 set-top-box might turn on and off SCART pass through mode, or turn on an analogue protection system such as Macrovision or Dwight Cavendish, that would prevent recording but not display further down the chain. This will be controlled through the rights mapping. The intent here is enabling the curre
44、nt use cases and has them continue to work. Watermarking can convey the usage rights. 7.5 Storage Storage in a CPCM system performs the CPCM function of storage which is to store copies, of CPCM content. Physical storage drives can be embedded within a device or be external to a device, however they
45、 are always outside of the CPCM instance. CPCM content on a drive or other physical media is always protected by CPCM, and it is the content licence function inside the security control part of the CPCM instance that keeps the CPCM content secure. Consequently, the C the first is to allow processing
46、 of the content such as recompression or frame rate conversion and in this case the content is usually buffered in the system RAM. The second purpose is buffering for delayed viewing for example in the event that playback is paused in which case the C&R Regime defines the period of time that content
47、 marked Copy Never Zero Retention Not Asserted may stay in temporary storage. The C&R Regime specifies in both cases the robustness associated with the buffers, for example clearing on the buffer when the need to buffer has ended. 8.12 Non repudiation The C&R regime is recommended to deal with non-r
48、epudiation for content marked View Period activated. The purpose is to prevent the user from denying having played the content and hence claiming for a new View Period. 8.13 System parameters For the CPCM System to work properly, implementers have to define timeouts for CPCM protocols implementation
49、 in order to provide the user with a good experience. A C&R Regime may impose upper or lower limits for these timeout values. It may happen that a CPCM Device has the choice of the network or physical interface it can use in order to exchange content or CPCM messages because he has in common several of them with the destination CPCM Device. In such case, the C&R Regime may impose one or a limited set of interfaces the CPCM Device should use, e.g. because proximity tests perform better on certain interfaces. 8.14 Proximity T
