ISO IEC 23009-4-2013 Information technology - Dynamic adaptive streaming over HTTP (DASH) - Part 4 Segment encryption and authentication《信息技术 超文本传输协议(HTTP)上的动态自.pdf
《ISO IEC 23009-4-2013 Information technology - Dynamic adaptive streaming over HTTP (DASH) - Part 4 Segment encryption and authentication《信息技术 超文本传输协议(HTTP)上的动态自.pdf》由会员分享,可在线阅读,更多相关《ISO IEC 23009-4-2013 Information technology - Dynamic adaptive streaming over HTTP (DASH) - Part 4 Segment encryption and authentication《信息技术 超文本传输协议(HTTP)上的动态自.pdf(32页珍藏版)》请在麦多课文档分享上搜索。
1、 Reference number ISO/IEC 23009-4:2013(E) ISO/IEC 2013INTERNATIONAL STANDARD ISO/IEC 23009-4 First edition 2013-07-01 Information technology Dynamic adaptive streaming over HTTP (DASH) Part 4: Segment encryption and authentication Technologies de linformation Diffusion en flux adaptatif dynamique su
2、r HTTP (DASH) Partie 4: Cryptage et authentification des segments ISO/IEC 23009-4:2013(E) COPYRIGHT PROTECTED DOCUMENT ISO/IEC 2013 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanic
3、al, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11
4、 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO/IEC 2013 All rights reservedISO/IEC 23009-4:2013(E) ISO/IEC 2013 All rights reserved iiiContents Page Foreword . v Introduction vi 1 Scope 1 2 Normative references 1 3 Definitions 2 3.1 Terms and definitio
5、ns . 2 3.2 Abbreviated terms . 2 3.3 Notation 3 4 Introduction 3 4.1 Segment Encryption 3 4.2 Segment Authentication . 4 4.3 MPD security 5 5 Signalling encryption and authentication . 5 5.1 Encryption declaration 5 5.1.1 ContentProtection element 5 5.1.2 SegmentEncryption element 6 5.1.3 License el
6、ement . 7 5.1.4 Common cryptoperiod properties . 7 5.1.5 CryptoPeriod element . 8 5.1.6 CryptoTimeline element 9 5.2 Authentication declaration . 10 5.2.1 General . 10 5.2.2 ContentAuthenticity element . 11 5.2.3 URL derivation . 11 6 Segment encryption 12 6.1 Segment Format 12 6.2 Key systems . 12
7、6.2.1 General . 12 6.2.2 License-based Key Systems 12 6.3 Encryption systems 12 6.3.1 General . 12 6.3.2 AES-128 CBC Encryption System . 13 6.3.3 AES-128 GCM Encryption System . 13 6.4 Cryptoperiods 13 6.4.1 General . 13 6.4.2 Assigning segments to cryptoperiods 13 6.4.3 Key derivation 14 6.4.4 IV d
8、erivation . 15 6.4.5 AAD derivation . 16 6.5 Adding new encryption and key systems . 16 7 Segment authentication 16 7.1 General . 16 7.2 Algorithms 16 7.2.1 SHA-256 16 7.2.2 HMAC-SHA1 . 16 Annex A (normative) XML Schema . 17 Annex B (informative) Implementation Guidelines 19 ISO/IEC 23009-4:2013(E)
9、iv ISO/IEC 2013 All rights reservedB.1 Key Delivery .19 B.2 Encryption 19 B.3 Content Authenticity19 Annex C (informative) MPD Examples and Usage .20 C.1 Video on Demand .20 C.2 Live Event with Key Rotation and Authentication 21 C.3 Use of Arbitrary ISO-BMFF Content Protection with Content Authentic
10、ation 22 C.4 Use of License-based Key Transport 24 ISO/IEC 23009-4:2013(E) ISO/IEC 2013 All rights reserved vForeword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National b
11、odies that are members of ISO or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Othe
12、r international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. International Standards are drafted in accordance with the rules
13、 given in the ISO/IEC Directives, Part 2. The main task of the joint technical committee is to prepare International Standards. Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an International Standard requires appro
14、val by at least 75 % of the national bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights. ISO/IEC 23009-4 was prepared by J
15、oint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 29, Coding of audio, picture, multimedia and hypermedia information. ISO/IEC 23009 consists of the following parts, under the general title Information technology Dynamic adaptive streaming over HTTP (DASH): Part 1: Medi
16、a presentation description and segment formats Part 2: Conformance and reference software 1 Part 3: Technical Report 2 Part 4: Segment encryption and authentication 1To be published. 2To be published. ISO/IEC 23009-4:2013(E) vi ISO/IEC 2013 All rights reservedIntroduction Dynamic Adaptive Streaming
17、over HTTP (DASH) enables media-streaming model for delivery of media content in which control lies exclusively with the client. Clients may request data using the HTTP protocol from standard web servers that have no DASH-specific capabilities. Consequently, ISO/IEC 23009 focuses not on client or ser
18、ver procedures but on the data formats used to provide a DASH Media Presentation. This part of ISO/IEC 23009 provides methods and interfaces for segment encryption and verification of segment integrity and authenticity INTERNATIONAL STANDARD ISO/IEC 23009-4:2013(E) ISO/IEC 2013 All rights reserved 1
19、Information technology Dynamic adaptive streaming over HTTP (DASH) Part 4: Segment encryption and authentication 1 Scope This part of ISO/IEC 23009 specifies: format-independent segment encryption and signalling mechanisms for use with any media segment format used in DASH (ISO/IEC 23009-1:2012); me
20、chanisms to ensure segment integrity and authenticity for use with any segment used in DASH (ISO/IEC 23009-1:2012). 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only t
21、he edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO/IEC 23009-1:2012, Information technology Dynamic adaptive streaming over HTTP (DASH) Part 1: Media presentation description and segment formats Advanced Encryption
22、Standard, Federal Information Processing Standards Publication 197, FIPS- 197, http:/www.nist.gov/ Secure Hash Standard, Federal Information Processing Standards Publication 180, FIPS 180- 3, http:/www.nist.gov/ Recommendation of Block Cipher Modes of Operation, NIST, NIST Special Publication 800- 3
23、8A, http:/www.nist.gov/ Recommendation for Block Cipher Modes of Operation: Galois/Counter Mode (GCM) and GMAC, NIST, NIST Special Publication 800-38D, http:/www.nist.gov/ IETF RFC 2104, HMAC: Keyed-Hashing for Message Authentication, H. Krawczyk, M. Bellare, R. Canetti, February 1997 IETF RFC 2616,
24、 Hypertext Transfer Protocol HTTP/1.1, June 1999 IETF RFC 3986, Uniform Resource Identifier (URI): Generic Syntax, January 2005 IETF RFC 5246, The Transport Layer Security (TLS) Protocol, T. Dierks et al, August 2008 IETF RFC 5652/STD 70, Cryptographic Message Syntax (CMS), R. Housley, September 200
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