ETSI EN 300 920 V6.1.1 (2000-08)

SLOVENSKI STANDARD
SIST EN 300 920 V6.1.1:2003
01-december-2003
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Digital cellular telecommunications system (Phase 2+) (GSM); Security aspects (GSM
02.09 version 6.1.1 Release 1997)
Ta slovenski standard je istoveten z: EN 300 920 Version 6.1.1
ICS:
33.070.50 Globalni sistem za mobilno Global System for Mobile
telekomunikacijo (GSM) Communication (GSM)
SIST EN 300 920 V6.1.1:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 300 920 V6.1.1:2003

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SIST EN 300 920 V6.1.1:2003
ETSI EN 300 920 V6.1.1 (2000-08)
European Standard (Telecommunications series)
Digital cellular telecommunications system (Phase 2+);
Security aspects
(GSM 02.09 version 6.1.1 Release 1997)
R
GLOBAL SYSTEM FOR
MOBILE COMMUNICATIONS

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SIST EN 300 920 V6.1.1:2003
2 ETSI EN 300 920 V6.1.1 (2000-08)
(GSM 02.09 version 6.1.1 Release 1997)
Reference
REN/SMG-010209Q6R1
Keywords
Digital cellular telecommunications system,
Global System for Mobile communications (GSM)
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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 2000.
All rights reserved.
ETSI

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SIST EN 300 920 V6.1.1:2003
3 ETSI EN 300 920 V6.1.1 (2000-08)
(GSM 02.09 version 6.1.1 Release 1997)
Contents
Intellectual Property Rights.4
Foreword.4
1 Scope .5
1.1 References .5
1.2 Abbreviations .5
2 General .6
3 Security features provided in a GSM PLMN .6
3.1 Subscriber identity confidentiality .6
3.1.1 Definition.6
3.1.2 Purpose .6
3.1.3 Functional requirements .7
3.2 Subscriber identity authentication .7
3.2.1 Definition.7
3.2.2 Purpose .7
3.2.3 Functional requirements .7
3.2.4 Authentication during a malfunction of the network .7
3.3 User data confidentiality on physical connections (Voice and Non-voice).8
3.3.1 Definition.8
3.3.2 Purpose .8
3.3.3 Functional requirements .8
3.4 Connectionless user data confidentiality .8
3.4.1 Definition.8
3.4.2 Purpose .8
3.4.3 Functional requirements .9
3.5 Signalling information element confidentiality .9
3.5.1 Definition.9
3.5.2 Purpose .9
3.5.3 Functional requirements .9
Annex A (informative): Change history .10
History .11
ETSI

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SIST EN 300 920 V6.1.1:2003
4 ETSI EN 300 920 V6.1.1 (2000-08)
(GSM 02.09 version 6.1.1 Release 1997)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); 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://www.etsi.org/ipr).
Pursuant to the ETSI 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.
Foreword
This European Standard (Telecommunications series) has been produced by ETSI Technical Committee Special Mobile
Group (SMG).
The present document defines security features within the digital cellular telecommunications system.
The contents of this standard may be subject to continuing work within SMG and may change following formal SMG
approval. Should SMG modify the contents of this standard it will then be re-submitted for formal approval procedures
by ETSI with an identifying change of release date and an increase in version number as follows:
Version 6.x.y
where:
6 GSM Phase 2+ Release 1997;
x the second digit is incremented for changes of substance, i.e. technical enhancements, corrections, updates,
etc.;
y the third digit is incremented when editorial only changes have been incorporated in the specification.
National transposition dates
Date of adoption of this EN: 14 July 2000
Date of latest announcement of this EN (doa): 31 October 2000
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 30 April 2001
Date of withdrawal of any conflicting National Standard (dow): 30 April 2001
ETSI

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SIST EN 300 920 V6.1.1:2003
5 ETSI EN 300 920 V6.1.1 (2000-08)
(GSM 02.09 version 6.1.1 Release 1997)
1 Scope
Bearer and Teleservices, as respectively defined in GSM 02.02 and GSM 02.03, are the objects which the GSM PLMN
operators offer to their customers. Besides these basic telecommunications services, features which aim at up-grading
these basic services need also to be offered. Due to the use of radiocommunications in a PLMN, which are of a special
nature compared to classical distribution transmission techniques used in the fixed networks, such a category of features
is related to security aspects.
In a GSM PLMN, both the users and the network operator have to be protected against undesirable intrusion of third
parties. However, measures should be provided for in order to insure maximum protection of the rights of the
individuals concerns. As a consequence, a security feature is either a supplementary service to Tele or Bearer services,
which can be selected by the subscriber, or a network function involved in the provision of one or several
telecommunication services.
The purpose of this EN is to define the security features which are to be available in a GSM PLMN, together with the
associated levels of protection. This EN is only concerned with those security features which aim at the up-grading of
the security in a GSM PLMN. In particular, end-to-end security is outside the scope of this EN.
The implementation aspects of security features are described in GSM 03.20.
1.1 References
The following documents contain provisions which, through reference in this text, constitute provisions of the present
document.
• References are either specific (identified by date of publication, edition number, version number, etc.) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• For a non-specific reference, the latest version applies.
• A non-specific reference to an ETS shall also be taken to refer to later versions published as an EN with the same
number.
• For this Release 1997 document, references to GSM documents are for Release 1997 versions (version 6.x.y).
[1] GSM 01.04: "Digital cellular telecommunications system (Phase 2+); Abbreviations and
acronyms".
[2] GSM 02.02: "Digital cellular telecommunications system (Phase 2+); Bearer Services (BS)
supported by a GSM Public Land Mobile Network (PLMN)".
[3] GSM 02.03: "Digital cellular telecommunications system (Phase 2+); Teleservices supported by a
GSM Public Land Mobile Network (PLMN)".
[4] GSM 03.20: "Digital cellular telecommunications system (Phase 2+); Security related network
functions".
[5] GSM 11.11: "Digital cellular telecommunications system (Phase 2+); Specification of the
Subscri
...