SIST ETS 300 747 E1:2003
(Main)Telecommunications security; Service access control and synchronization for audiovisual services
General Information
- Abstract
This ETS describes the functions of the Multipoint Control Unit, the acces control of a session and the synchronisation of the Confidentiality System.
- Status
- Published
- Publication Date
- 30-Nov-2003
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-Dec-2003
- Due Date
- 01-Dec-2003
- Completion Date
- 01-Dec-2003
Overview
SIST ETS 300 747 E1:2003 is a critical European standard focusing on telecommunications security, specifically addressing service access control and synchronization for audiovisual services. Published by the Slovenian Institute for Standardization (SIST), this standard harmonizes with ETSI ETS 300 747 Edition 1 and concerns systems operating over the Integrated Services Digital Network (ISDN). It defines essential protocols and functions to ensure secure and synchronized access control in multipoint audiovisual communication environments.
By specifying the necessary confidentiality-related protocol extensions, this standard underpins the security and integrity of audiovisual conferencing, catering to scenarios with varying trust levels in Multipoint Control Units (MCUs).
Key Topics
- Multipoint Control Unit (MCU) Roles:
- Trusted MCU (TMCU): Handles all decryption and security functions in a secure location, simplifying key management and participant authentication.
- Non-trusted MCU (NMCU): Relies on external Chair-Control Terminals (CCTs) for key distribution and participant authentication, with switching capabilities as encrypted data mixing is not allowed.
- Service Access Control:
- Authentication procedures for all conference participants.
- Initialization and secure management of audiovisual conferencing sessions.
- Procedures for participants joining or leaving, including secure key redistribution.
- Confidentiality System Synchronization:
- Mechanisms for synchronizing session key activation across all participants whenever session modifications occur.
- Use of standardized control signals and messages for reliable key distribution and confirmation.
- Chair-Control Functions:
- Distribution and handover of the chair-control token.
- Session management, including speaker switching and conference termination commands.
- Abnormal Event Handling:
- Protocols for session termination upon abrupt disconnections or abnormal events.
Applications
SIST ETS 300 747 E1:2003 is valuable for organizations and service providers involved in:
- Audiovisual Conferencing: Ensuring secure and controlled access for participants in multipoint audiovisual communications across ISDN-based systems.
- Telecommunication Security: Implementing robust authentication, key management, and confidentiality synchronization procedures in compliance with international best practices.
- Enterprise Video Collaboration: Supporting secure, scalable conferencing where sensitive information may be exchanged between remote participants.
- Government and Defense Communications: Guaranteeing secure session control and strict access authorization in highly regulated environments.
- Network Equipment Vendors: Designing and validating MCUs, endpoints, and systems compliant with established security protocols for audio, video, and data.
The standard also assists system integrators and network architects in selecting suitable MCU trust models and implementing the required procedures for reliable and synchronized access control in conferencing systems.
Related Standards
Compliance with SIST ETS 300 747 E1:2003 may require reference to related international and European standards, including:
- ITU-T Recommendation H.233: Confidentiality system for audiovisual services.
- ITU-T Recommendation H.234: Encryption key management and authentication system for audiovisual services.
- ITU-T Recommendation H.231: Multipoint control units for audiovisual systems using digital channels up to 2 Mbit/s.
- ITU-T Recommendation H.243: Procedures for establishing communication between three or more audiovisual terminals.
- ITU-T Recommendation H.230: Frame-synchronous control and indication signals.
- ETS 300 840: Telecommunications Security; ISDN Confidentiality system for audiovisual services.
By aligning with these related standards, organizations can ensure comprehensive security and interoperability across their audiovisual service platforms.
Keywords: telecommunications security, audiovisual services, service access control, synchronization, confidentiality system, multipoint control unit, MCU, trusted MCU, non-trusted MCU, ISDN, chair-control, key management, authentication, ETSI standards.
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Frequently Asked Questions
SIST ETS 300 747 E1:2003 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Telecommunications security; Service access control and synchronization for audiovisual services". This standard covers: This ETS describes the functions of the Multipoint Control Unit, the acces control of a session and the synchronisation of the Confidentiality System.
This ETS describes the functions of the Multipoint Control Unit, the acces control of a session and the synchronisation of the Confidentiality System.
SIST ETS 300 747 E1:2003 is classified under the following ICS (International Classification for Standards) categories: 33.020 - Telecommunications in general; 33.160.01 - Audio, video and audiovisual systems in general. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST ETS 300 747 E1:2003 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2003
Telekomunikacijska varnost – Krmiljenje in sinhronizacija dostopa do storitev pri
avdiovizualnih storitvah
Telecommunications security; Service access control and synchronization for audiovisual
services
Ta slovenski standard je istoveten z: ETS 300 747 Edition 1
ICS:
33.020 Telekomunikacije na splošno Telecommunications in
general
33.160.01 Avdio, video in avdiovizualni Audio, video and audiovisual
sistemi na splošno systems in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN ETS 300 747
TELECOMMUNICATION May 1997
STANDARD
Source: ETSI TC-Security Reference: DE/SEC-002308
ICS: 33.020
Key words: Audio, security, service
Telecommunications Security;
Service access control and synchronization
for audiovisual services
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
Postal address: F-06921 Sophia Antipolis CEDEX - FRANCE
Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
X.400: c=fr, a=atlas, p=etsi, s=secretariat - Internet: secretariat@etsi.fr
Tel.: +33 4 92 94 42 00 - Fax: +33 4 93 65 47 16
Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and the
foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 1997. All rights reserved.
Page 2
ETS 300 747: May 1997
Whilst every care has been taken in the preparation and publication of this document, errors in content,
typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to
"ETSI Editing and Committee Support Dept." at the address shown on the title page.
Page 3
ETS 300 747: May 1997
Contents
Foreword .5
1 Scope .7
2 Normative references.7
3 Abbreviations.7
4 General functions .8
4.1 Trusted MCUs (TMCUs) versus Non-trusted MCUs (NMCUs) .8
4.1.1 TMCU.8
4.1.2 NMCU.8
4.2 Chair-Control Functions for Confidentiality .8
4.3 Authentication .8
4.4 Routeing of ECS channel messages.9
5 Access control.9
5.1 Initialization of a session .9
5.2 Modifications during a session.9
5.2.1 Participants joins a session.9
5.2.2 Participant leaves a session.9
5.2.3 Handover of session responsibility.10
5.3 Termination of a session. 10
5.4 Abnormal events.10
6 Synchronization of the confidentiality system.10
6.1 Introduction .10
6.2 Synchronization of session key activation.10
History.11
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ETS 300 747: May 1997
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ETS 300 747: May 1997
Foreword
This European Telecommunication Standard (ETS) has been produced by the Security Technical
Committee of the European Telecommunications Standards Institute (ETSI).
Transposition dates
Date of adoption: 18 April 1997
Date of latest announcement of this ETS (doa): 31 August 1997
Date of latest publication of new National Standard
or endorsement of this ETS (dop/e): 28 February 1998
Date of withdrawal of any conflicting National Standard (dow): 28 February 1998
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ETS 300 747: May 1997
Blank page
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ETS 300 747: May 1997
1 Scope
This European Telecommunication Standard (ETS) fits into the series of standards about audiovisual
communication over the Integrated Services Digital Network (ISDN), which is introduced in the
ITU-T H.200 series of Recommendations.
In ITU-T Recommendations H.233 [1] and H.234 [2], the basic mechanisms for confidentiality and key
exchange are specified.
On top of these, this ETS specifies the confidentiality related protocol extensions needed for the
establishment, modification and termination of audiovisual conferences using one or more Multipoint
Control Units (MCUs).
2 Normative references
This ETS incorporates by dated and undated reference, provisions from other publications. These
normative references are cited at the appropriate places in the text and the publications are listed
hereafter. For dated references, subsequent amendments to or revisions of any of these publications
apply to this ETS only when incorporated in it by amendment or revision. For undated references the latest
edition of the publication referred to applies.
[1] ITU-T Recommendation H.233: "Confidentiality system for audiovisual services".
NOTE 1: ITU-T Recommendation H.233 forms the basis of ETS 300 840 [6].
[2] ITU-T Recommendation H.234: "Encryption key management and
authentication system for audiovisual services".
NOTE 2: ITU-T Recommendation H.234 forms the basis of ETS 300 841 [7].
[3] ITU-T Recommendation H.243: "Procedures for establishing communication
between three or more audiovisual terminals using digital channels up to
2 Mbit/s".
[4] ITU-T Recommendation H.231: "Multipoint control units for audiovisual systems
using digital channels up to 2 Mbit/s".
[5] ITU-T Recommendation H.230: "Frame-synchronous control and indication
signals for audiovisual systems".
[6] ETS 300 840: "Telecommunications Security; Integrated Services Digital
Network (ISDN); Confidentiality system for audiovisual services".
[7] ETS 300 840: "Telecommunications Security; Integrated Services Digital
Network (ISDN); Encryption key management and authentication system for
audiovisual services".
3 Abbreviations
For the purposes of this ETS, the following abbreviations apply:
CCK Chair Command Kill
CCT Chair-Control Terminal
ECS Encryption Control Signal
MCU Multipoint Control Unit
NMCU Non-trusted MCU
TMCU Trusted MCU
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