IEC TS 62224:2013

Multimedia home server systems - Conceptual model for digital rights management

IEC/TS 62224:2013(E) explains the conceptual model of the protocol specification to exchange license information between DRM modules. This Technical Specification also outlines which models should be defined as standard models as well as the standard meanings (mainly from the viewpoint of information security in the environment, including home server systems). This second edition cancels and replaces the first edition published in 2007 and constitutes a technical revision. It includes the following technical changes:
- the Diffie-Hellman method concerning Secure license transaction protocol (SLTP) model has been added,
- the Protected Content Format (PCF) model which is dependent on each service has been deleted,
- a description related to IEC 62227 has been added,
- the classification of certification authority has been added.

General Information

• Status: Published
• Publication Date: 09-Jul-2013
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 33.160.60 - Multimedia systems and teleconferencing equipment
• ICS: 35.100.01 - Open systems interconnection in general
• Technical Committee: TA 18 - Multimedia home systems and applications for end-user networks
• Current Stage: PPUB - Publication issued
• Start Date: 31-Aug-2013
• Completion Date: 10-Jul-2013

Relations

• Revises: IEC TS 62224:2007 - Multimedia home server systems - Conceptual model for digital rights management
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC/TS 62224 ®
Edition 2.0 2013-07
TECHNICAL
SPECIFICATION
colour
inside
Multimedia home server systems – Conceptual model for digital rights
management
IEC/TS 62224:2013(E)
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IEC/TS 62224 ®
Edition 2.0 2013-07
TECHNICAL
SPECIFICATION
colour
inside
Multimedia home server systems – Conceptual model for digital rights

management
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
U
ICS 33.160.60; 35.100.01 ISBN 978-2-8322-0927-1

– 2 – TS 62224 © IEC:2013(E)
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Abbreviations . 11
5 Notation. 12
5.1 Numerical values . 12
5.2 Notation list . 12
6 Requirements . 13
6.1 License service model . 13
6.1.1 General . 13
6.1.2 Threats and countermeasures . 15
6.1.3 Evaluation criteria . 16
7 Design considerations . 17
7.1 General . 17
7.2 Security model . 17
7.2.1 General . 17
7.2.2 Overview of security model . 17
7.2.3 TREM functions . 18
7.2.4 Secure license transaction protocol (SLTP) model . 18
7.2.5 Certification authority. 20
7.2.6 Key revocation and termination of the TREM . 21
7.3 Interconnection model . 21
7.3.1 Generic interconnection model . 21
7.3.2 License relay protocol (LRP) model . 22
7.3.3 Implementation model of inter-connection . 23
7.4 License information model . 24
7.4.1 General . 24
7.4.2 Digital rights permissions data . 24
8 Issues to be standardized . 25
Annex A (informative) Example of algorithms for cryptosystem and hash . 26
Annex B (informative) Example of conversion of rights information in DRM based upon
SLTP into that of existing DRM . 27
Bibliography . 29

Figure 1 – License service model to consider the threats . 15
Figure 2 – Security model of content protection . 18
Figure 3 – Basic procedure of SLTP model . 20
Figure 4 – Overview of issuing TREM class certificates . 21
Figure 5 – Generic interconnection model for content protection . 22
Figure 6 – Implementation model of interconnection . 24
Figure B.1 – Example of static conversion of rights information . 27
Figure B.2 – Example of dynamic conversion of rights information . 28

TS 62224 © IEC:2013(E) – 3 –
Table 1 – Expression of numerical values . 12
Table 2 – Notations used in this model . 12
Table 3 – Threats and countermeasures in the license service model . 16

– 4 – TS 62224 © IEC:2013(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
MULTIMEDIA HOME SERVER SYSTEMS –
CONCEPTUAL MODEL FOR DIGITAL RIGHTS MANAGEMENT

FOREWORD
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The main task of IEC technical committees is to prepare International Standards. In exceptional
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• the required support cannot be obtained for the publication of an International Standard,
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Technical specifications are subject to review within three years of publication to decide whether
they can be transformed into International Standards.
IEC 62224, which is a technical specification, has been prepared by technical area 8:
Multimedia home server systems of IEC technical committee 100: Audio, video and multimedia
systems and equipment.
This second edition cancels and replaces the first edition published in 2007 and constitutes a
technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
TS 62224 © IEC:2013(E) – 5 –
a) the Diffie-Hellman method concerning Secure license transaction protocol (SLTP) model has
been added,
b) the Protected Content Format (PCF) model which is dependent on each service has been
deleted,
c) a description related to IEC 62227 has been added,
d) the classification of certification authority has been added.
The text of this technical specification is based on the following documents:
Enquiry draft Report on voting
100/2005/DTS 100/2060/RVC
Full information on the voting for the approval of this technical specification can be found in the
report on voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
The committee has decided that the contents of this publication will remain unchanged until the
stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data related to
the specific publication. At this date, the publication will be
• transformed into an International Standard,
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

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– 6 – TS 62224 © IEC:2013(E)
INTRODUCTION
Due to the recent trends in the rapid popularization of mobile phones and the Internet as well as
the realization of high-speed data
...