Internet protocol (IP) and transport stream (TS) based service access

IEC 62455:2010 specifies the terminal for a service purchase and protection system for digital broadcasts, called the 18Crypt system. It is applicable in all countries and regions with suitably compliant broadcasting and multimedia distribution systems. Guidelines for compatible broadcast services are given in this standard. The service purchase and protection functions operate in a pure broadcast environment that may be combined with a bi-directional interactivity channel. It is applicable to the following broadcast systems:
- IP datacast over DVB-H systems;
- DVB T/C/S systems;
- MPEG2 TS-based IP systems;
- Non-MPEG2 TS-based IP systems.
This second edition cancels and replaces the first edition, published in 2007, and constitutes a technical revision. The main changes with respect to the previous edition are:
- Recent developments in DVB and OMA standards caused some incompatibilities, which have been solved in the second edition.
- Technical errors have been corrected, missing details added.
- References have been updated to the newest available ones.

Accès aux services fondé sur le protocole internet (IP) et sur le flux de transport (TS)

L'IEC 62455:2010 spécifie le terminal d'un système d'achat et de protection de services pour diffusions numériques, appelé le système 18Crypt. Il s'applique dans l'ensemble des pays et régions qui comportent des systèmes de distribution de diffusion et multimédia conformes. Les lignes directrices pour des services de diffusion compatibles sont données dans la présente norme. Les fonctions d'achat et de protection de services fonctionnent dans un environnement de diffusion pure qui peut être combiné à un canal d'interactivité bidirectionnel.
La présente norme s'applique aux systèmes de diffusion suivants.
• Systèmes de diffusion de données IP sur DVB-H;
• Systèmes DVB T/C/S;
• Systèmes IP fondés sur TS MPEG2;
• Systèmes IP non fondés sur TS MPEG2.
L'IEC 62455:2010 annule et remplace la première édition publiée en 2007, dont elle constitue une révision technique.
Les principales modifications par rapport à l'édition précédente sont les suivantes:
• les développements récents des normes DVB et OMA ont entraîné certaines incompatibilités, résolues dans la seconde édition;
• des erreurs techniques ont été corrigées et des détails manquants ont été ajoutés;
• les références ont été mises à jour aux références disponibles les plus récentes;
• un certain nombre de corrections rédactionnelles et d'améliorations de lisibilité ont également été apportées, lorsque le texte original pouvait conduire à une mauvaise compréhension du fait de formulations peu claires ou de l'utilisation de plusieurs formes orthographiques pour un même élément.

General Information

Status
Published
Publication Date
14-Dec-2010
Current Stage
PPUB - Publication issued
Start Date
15-Feb-2011
Completion Date
15-Dec-2010
Ref Project

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IEC 62455 ®
Edition 2.0 2010-12
INTERNATIONAL
STANDARD
colour
inside
Internet protocol (IP) and transport stream (TS) based service access

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
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IEC 62455 ®
Edition 2.0 2010-12
INTERNATIONAL
STANDARD
colour
inside
Internet protocol (IP) and transport stream (TS) based service access

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
XH
ICS 33.170; 35.100; 35.240.99 ISBN 978-2-88912-289-9
– 2 – 62455 Ó IEC:2010(E)
CONTENTS
FOREW ORD . 14
1 Scope . 16
2 Normative references . 16
3 Terms, definitions and abbreviations. 18
3.1 Terms and definitions . 18
3.2 Symbols . 23
3.3 Abbreviations. 24
3.4 Identifiers assigned by external entities . 28
4 General . 28
4.1 Ov erv iew . 28
4.2 General description of the system and elements . 29
4.2.1 General . 29
4.2.2 Selected technologies. 30
4.2.3 Overview of four-layer model for service protection . 31
4.3 End-to-end system . 33
4.4 Supported systems and device types . 33
4.5 Service protection versus content protection . 35
5 General specifications . 36
5.1 End-to-end architecture . 36
5.2 Special cases . 38
5.2.1 Free-to-air services . 38
5.2.2 Free-to-view services . 38
5.3 Service guide and purchase . 38
5.4 Four-layer model – Key hierarchy . 39
5.4.1 General . 39
5.4.2 Keys on the traffic layer . 40
5.4.3 Keys on the key stream layer . 40
5.4.4 Keys on the rights management layer (interactive mode) . 43
5.4.5 Keys on the rights management layer (broadcast mode) . 43
5.4.6 Keys on the registration layer (interactive mode) . 43
5.4.7 Keys on the registration layer (broadcast mode) . 43
5.4.8 Authentication overview . 46
5.5 Deployment for broadcast mode of operation . 47
5.5.1 Concept of Domains –Interactive and broadcast domains . 47
5.5.2 Addressing (group/subset/device/domain) . 48
5.5.3 Zero message broadcast encryption scheme . 51
6 Traffic layer. 53
6.1 General . 53
6.2 IPsec . 53
6.2.1 General . 53
6.2.2 Selectors . 54
6.2.3 Encapsulation protocol and mode . 54
6.2.4 Encryption algorithm . 55
6.2.5 Authentication algorithm . 55
6.2.6 Security association management . 55
6.3 ISMACryp . 55

62455 Ó IEC:2010(E) – 3 –
6.3.1 Streamed content . 55
6.3.2 Downloadable audio/visual content (stored in MP4 files) . 56
6.3.3 Use of ISMACryp with the rights management and key stream layers . 57
6.4 SRTP . 57
6.4.1 General . 57
6.4.2 Key management . 59
6.4.3 Encryption algorithm . 60
6.4.4 Authentication algorithm . 60
6.5 MPEG2 TS crypt . 60
6.5.1 General . 60
6.5.2 Transport stream level scrambling . 62
6.5.3 PES level scrambling . 62
6.5.4 Descrambling MPEG2 content . 63
6.5.5 Supported ciphers . 64
6.5.6 Key management . 64
7 Key stream layer . 65
7.1 General . 65
7.2 Format of the key stream message (KSM) . 65
7.2.1 Format . 65
7.2.2 Descriptors for access_criteria_descriptor_loop. 68
7.2.3 Constants . 75
7.2.4 Coding and semantics of attributes . 75
8 Rights management layer . 83
8.1 General . 83
8.2 Identification of rights objects . 83
8.3 Requirements for rights objects . 84
8.3.1 Requirements for service ROs . 84
8.3.2 Requirements for programme ROs . 84
8.4 Format of rights objects . 85
8.4.1 Format of an Interactivity channel rights object (ICRO). 85
8.4.2 Format of a broadcast rights object (BCRO) . 85
8.4.3 Format of the asset object . 89
8.4.4 Format of the permission object . 92
8.4.5 Format of the action object . 93
8.4.6 Format of the constraint object . 94
9 Registration layer . 100
9.1 General . 100
9.2 RI context. 100
9.3 Registration layer protocols and message specification . 101
9.3.1 Interactivity channel registration layer specification . 101
9.3.2 Broadcast channel registration layer specification. 101
9.3.3 Domain joining and leaving . 136
9.3.4 Token handling . 151
9.3.5 Mixed-mode registration for interactive and broadcast modes of
operation . 158
10 Signalling and service guide . 159
10.1 General . 159
10.2 Signalling requirements . 160
10.2.1 Signalling information . 160

– 4 – 62455 Ó IEC:2010(E)
10.2.2 Requirements for signalling the KSM . 160
10.2.3 Requirements for signalling of services . 160
10.3 Service guide requirements . 160
10.4 Service guide recommendations . 160
11 Rights issuer services and rights issuer streams . 161
11.1 General . 161
11.2 Rights issuer services. 161
11.2.1 Requirements for rights issuer services in IPDC over DVB-H systems . 161
11.2.2 Requirements for rights issuer services in DVB-T/C/S systems . 162
11.2.3 Requirements for the support of rights issuer services and streams in
IPTV systems . 162
11.3 Usage of rights issuer streams and services . 162
11.3.1 General . 162
11.3.2 Scheduled RI stream . 163
11.3.3 Ad hoc RI stream . 163
...


IEC 62455 ®
Edition 2.0 2010-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Internet protocol (IP) and transport stream (TS) based service access

Accès aux services fondé sur le protocole internet (IP) et sur le flux de transport
(TS)
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
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International Standards for all electrical, electronic and related technologies.

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IEC 62455 ®
Edition 2.0 2010-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Internet protocol (IP) and transport stream (TS) based service access

Accès aux services fondé sur le protocole internet (IP) et sur le flux de transport

(TS)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.170; 35.100.05; 35.240.99 ISBN 978-2-8322-1048-2

– 2 – IEC 62455:2010  IEC 2010
CONTENTS
FOREWORD . 14
1 Scope . 16
2 Normative references . 16
3 Terms, definitions and abbreviations . 18
3.1 Terms and definitions . 18
3.2 Symbols . 23
3.3 Abbreviations . 24
3.4 Identifiers assigned by external entities . 28
4 General . 28
4.1 Overview . 28
4.2 General description of the system and elements . 29
4.2.1 General . 29
4.2.2 Selected technologies . 30
4.2.3 Overview of four-layer model for service protection . 31
4.3 End-to-end system . 33
4.4 Supported systems and device types . 33
4.5 Service protection versus content protection . 35
5 General specifications . 36
5.1 End-to-end architecture . 36
5.2 Special cases . 38
5.2.1 Free-to-air services . 38
5.2.2 Free-to-view services . 38
5.3 Service guide and purchase . 38
5.4 Four-layer model – Key hierarchy . 39
5.4.1 General . 39
5.4.2 Keys on the traffic layer . 40
5.4.3 Keys on the key stream layer . 40
5.4.4 Keys on the rights management layer (interactive mode) . 43
5.4.5 Keys on the rights management layer (broadcast mode) . 43
5.4.6 Keys on the registration layer (interactive mode) . 43
5.4.7 Keys on the registration layer (broadcast mode) . 43
5.4.8 Authentication overview . 46
5.5 Deployment for broadcast mode of operation. 47
5.5.1 Concept of Domains –Interactive and broadcast domains . 47
5.5.2 Addressing (group/subset/device/domain) . 48
5.5.3 Zero message broadcast encryption scheme . 51
6 Traffic layer . 53
6.1 General . 53
6.2 IPsec . 53
6.2.1 General . 53
6.2.2 Selectors . 54
6.2.3 Encapsulation protocol and mode . 54
6.2.4 Encryption algorithm . 55
6.2.5 Authentication algorithm . 55
6.2.6 Security association management . 55
6.3 ISMACryp . 55

6.3.1 Streamed content . 55
6.3.2 Downloadable audio/visual content (stored in MP4 files) . 56
6.3.3 Use of ISMACryp with the rights management and key stream layers . 57
6.4 SRTP . 57
6.4.1 General . 57
6.4.2 Key management . 59
6.4.3 Encryption algorithm . 60
6.4.4 Authentication algorithm . 60
6.5 MPEG2 TS crypt . 60
6.5.1 General . 60
6.5.2 Transport stream level scrambling . 62
6.5.3 PES level scrambling . 62
6.5.4 Descrambling MPEG2 content . 63
6.5.5 Supported ciphers . 64
6.5.6 Key management . 64
7 Key stream layer . 65
7.1 General . 65
7.2 Format of the key stream message (KSM) . 65
7.2.1 Format . 65
7.2.2 Descriptors for access_criteria_descriptor_loop . 68
7.2.3 Constants . 75
7.2.4 Coding and semantics of attributes . 75
8 Rights management layer . 83
8.1 General . 83
8.2 Identification of rights objects . 83
8.3 Requirements for rights objects . 84
8.3.1 Requirements for service ROs . 84
8.3.2 Requirements for programme ROs. 84
8.4 Format of rights objects . 85
8.4.1 Format of an Interactivity channel rights object (ICRO) . 85
8.4.2 Format of a broadcast rights object (BCRO) .
...

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