IEC 62056-5-3:2017
(Main)Electrcity metering data exchange - The DLMS/COSEM suite - Part 5-3: DLMS/COSEM application layer
Electrcity metering data exchange - The DLMS/COSEM suite - Part 5-3: DLMS/COSEM application layer
IEC 62056-5-3:2017 specifies the DLMS/COSEM application layer in terms of structure, services and protocols for DLMS/COSEM clients and servers, and defines rules to specify the DLMS/COSEM communication profiles. It defines services for establishing and releasing application associations, and data communication services for accessing the methods and attributes of COSEM interface objects, defined in IEC 62056-6-2 using either logical name (LN) or short name (SN) referencing. This third edition cancels and replaces the second edition of IEC 62056-5-3, published in 2016. It constitutes a technical revision. The significant technical changes with respect to the previous edition are listed in Annex K (Informative).
Echange des données de comptage de l'électricité - La suite DLMS/COSEM - Partie 5-3: Couche application DLMS/COSEM
IEC 62056-5-3:2017 spécifie la couche application DLMS/COSEM en termes de structure, de services et de protocoles pour les clients et serveurs DLMS/COSEM, et définit les règles de spécification des profils de communication DLMS/COSEM.
Elle définit les services permettant d'établir et de libérer des associations d'applications, ainsi que les services de communication de données permettant d'accéder aux méthodes et aux attributs des objets d'interface COSEM, définis dans l’IEC 62056-6-2, à l'aide du référencement par nom logique (LN - logical name) ou par nom abrégé (SN - short name).
Cette troisième édition annule et remplace la deuxième édition de l'IEC 62056-5-3 parue en 2016. Cette édition constitue une révision technique.
Les modifications techniques majeures par rapport à l'édition précédente sont énumérées à l'Annexe K (Informative).
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IEC 62056-5-3 ®
Edition 3.0 2017-08
INTERNATIONAL
STANDARD
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inside
Electricity metering data exchange – The DLMS/COSEM suite –
Part 5-3: DLMS/COSEM application layer
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
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IEC 62056-5-3 ®
Edition 3.0 2017-08
INTERNATIONAL
STANDARD
colour
inside
Electricity metering data exchange – The DLMS/COSEM suite –
Part 5-3: DLMS/COSEM application layer
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 17.220; 35.110; 91.140.50 ISBN 978-2-8322-4599-6
– 2 – IEC 62056-5-3:2017 © IEC 2017
CONTENTS
FOREWORD . 11
INTRODUCTION . 13
1 Scope . 14
2 Normative references . 14
3 Terms, definitions, abbreviated terms and symbols . 16
3.1 General DLMS/COSEM definitions . 16
3.2 Definitions related to cryptographic security . 19
3.3 Definitions and abbreviated terms related to the Galois/Counter Mode . 29
3.4 General abbreviated terms . 30
3.5 Symbols related to the Galois/Counter Mode . 34
3.6 Symbols related the ECDSA algorithm . 35
3.7 Symbols related to the key agreement algorithms . 35
4 Overview of DLMS/COSEM . 35
4.1 Information exchange in DLMS/COSEM . 35
4.1.1 General . 35
4.1.2 Communication model . 36
4.1.3 Naming and addressing . 37
4.1.4 Connection oriented operation . 40
4.1.5 Application associations . 41
4.1.6 Messaging patterns . 42
4.1.7 Data exchange between third parties and DLMS/COSEM servers . 43
4.1.8 Communication profiles . 43
4.1.9 Model of a DLMS/COSEM metering system . 45
4.1.10 Model of DLMS/COSEM servers . 45
4.1.11 Model of a DLMS/COSEM client . 47
4.1.12 Interoperability and interconnectivity in DLMS/COSEM . 48
4.1.13 Ensuring interconnectivity: the protocol identification service . 48
4.1.14 System integration and meter installation . 49
4.2 DLMS/COSEM application layer main features . 49
4.2.1 General . 49
4.2.2 DLMS/COSEM application layer structure . 49
4.2.3 The Association Control Service Element, ACSE . 51
4.2.4 The xDLMS application service element . 52
4.2.5 Layer management services . 59
4.2.6 Summary of DLMS/COSEM application layer services . 59
4.2.7 DLMS/COSEM application layer protocols . 60
5 Information security in DLMS/COSEM . 60
5.1 Overview. 60
5.2 The DLMS/COSEM security concept . 61
5.2.1 Overview . 61
5.2.2 Identification and authentication . 61
5.2.3 Security context . 64
5.2.4 Access rights . 64
5.2.5 Application layer message security . 64
5.2.6 COSEM data security . 66
5.3 Cryptographic algorithms . 67
5.3.1 Overview . 67
5.3.2 Hash function . 67
5.3.3 Symmetric key algorithms . 68
5.3.4 Public key algorithms . 74
5.3.5 Random number generation . 85
5.3.6 Compression . 86
5.3.7 Security suite . 86
5.4 Cryptographic keys – overview . 87
5.5 Key used with symmetric key algorithms . 87
5.5.1 Symmetric keys types . 87
5.5.2 Key information with general-ciphering APDU and data protection . 88
5.5.3 Key identification . 89
5.5.4 Key wrapping . 89
5.5.5 Key agreement . 90
5.5.6 Symmetric key cryptoperiods . 90
5.6 Keys used with public key algorithms . 91
5.6.1 Overview . 91
5.6.2 Key pair generation . 91
5.6.3 Public key certificates and infrastructure . 92
5.6.4 Certificate and certificate extension profile . 95
5.6.5 Suite B end entity certificate types to be supported by DLMS/COSEM
servers . 103
5.6.6 Management of certificates . 103
5.7 Applying cryptographic protection . 108
5.7.1 Overview . 108
5.7.2 Protecting xDLMS APDUs . 108
5.7.3 Multi-layer protection by multiple parties . 121
5.7.4 HLS authentication mechanisms . 122
5.7.5 Protecting COSEM data . 125
6 DLMS/COSEM application layer service specification . 126
6.1 Service primitives and parameters . 126
6.2 The COSEM-OPEN service . 128
6.3 The COSEM-RELEASE service . 133
6.4 COSEM-ABORT service . 136
6.5 Protection and general block transfer parameters . 136
6.6 The GET service . 141
6.7 The SET service . 144
6.8 The ACTION service . 148
6.9 The ACCESS service . 151
6.9.1 Overview – Main features . 151
6.9.2 Service specification . 153
6.10 The DataNotification service . 158
6.11 The EventNotification service . 159
6.12 The TriggerEventNotificationSending service . 160
6.13 Variable access specification . 161
6.14 The Read service . 161
6.15 The Write service . 165
6.16 The UnconfirmedWrite service . 168
6.17 The InformationReport service . 170
– 4 – IEC 62056-5-3:2017 © IEC 2017
6.18 Client side layer management services: the SetMapperTable.request . 171
6.19 Summary of ser
...
IEC 62056-5-3 ®
Edition 3.0 2017-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electricity metering data exchange – The DLMS/COSEM suite –
Part 5-3: DLMS/COSEM application layer
Échange des données de comptage de l'électricité – La suite DLMS/COSEM –
Partie 5-3: Couche application DLMS/COSEM
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
your local IEC member National Committee for further information.
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Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.
IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing 21 000 terms and definitions in
Technical Specifications, Technical Reports and other English and French, with equivalent terms in 16 additional
documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical
iPad. Vocabulary (IEV) online.
IEC publications search - webstore.iec.ch/advsearchform IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a 67 000 electrotechnical terminology entries in English and
variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of
committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been
and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and
CISPR.
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IEC 62056-5-3 ®
Edition 3.0 2017-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electricity metering data exchange – The DLMS/COSEM suite –
Part 5-3: DLMS/COSEM application layer
Échange des données de comptage de l'électricité – La suite DLMS/COSEM –
Partie 5-3: Couche application DLMS/COSEM
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.220; 35.110; 91.140.50 ISBN 978-2-8322-5555-1
– 2 – IEC 62056-5-3:2017 © IEC 2017
CONTENTS
FOREWORD . 11
INTRODUCTION . 13
1 Scope . 14
2 Normative references . 14
3 Terms, definitions, abbreviated terms and symbols . 16
3.1 General DLMS/COSEM definitions . 16
3.2 Definitions related to cryptographic security . 19
3.3 Definitions and abbreviated terms related to the Galois/Counter Mode . 29
3.4 General abbreviated terms . 30
3.5 Symbols related to the Galois/Counter Mode . 34
3.6 Symbols related the ECDSA algorithm . 35
3.7 Symbols related to the key agreement algorithms . 35
4 Overview of DLMS/COSEM . 35
4.1 Information exchange in DLMS/COSEM . 35
4.1.1 General . 35
4.1.2 Communication model . 36
4.1.3 Naming and addressing . 37
4.1.4 Connection oriented operation . 40
4.1.5 Application associations . 41
4.1.6 Messaging patterns . 42
4.1.7 Data exchange between third parties and DLMS/COSEM servers . 43
4.1.8 Communication profiles . 43
4.1.9 Model of a DLMS/COSEM metering system . 45
4.1.10 Model of DLMS/COSEM servers . 45
4.1.11 Model of a DLMS/COSEM client . 47
4.1.12 Interoperability and interconnectivity in DLMS/COSEM . 48
4.1.13 Ensuring interconnectivity: the protocol identification service . 48
4.1.14 System integration and meter installation . 49
4.2 DLMS/COSEM application layer main features . 49
4.2.1 General . 49
4.2.2 DLMS/COSEM application layer structure . 49
4.2.3 The Association Control Service Element, ACSE . 51
4.2.4 The xDLMS application service element . 52
4.2.5 Layer management services . 59
4.2.6 Summary of DLMS/COSEM application layer services . 59
4.2.7 DLMS/COSEM application layer protocols . 60
5 Information security in DLMS/COSEM . 60
5.1 Overview. 60
5.2 The DLMS/COSEM security concept . 61
5.2.1 Overview . 61
5.2.2 Identification and authentication . 61
5.2.3 Security context . 64
5.2.4 Access rights . 64
5.2.5 Application layer message security . 64
5.2.6 COSEM data security . 66
5.3 Cryptographic algorithms . 67
5.3.1 Overview . 67
5.3.2 Hash function . 67
5.3.3 Symmetric key algorithms . 68
5.3.4 Public key algorithms . 74
5.3.5 Random number generation . 85
5.3.6 Compression . 86
5.3.7 Security suite . 86
5.4 Cryptographic keys – overview . 87
5.5 Key used with symmetric key algorithms . 87
5.5.1 Symmetric keys types . 87
5.5.2 Key information with general-ciphering APDU and data protection . 88
5.5.3 Key identification . 89
5.5.4 Key wrapping . 89
5.5.5 Key agreement . 90
5.5.6 Symmetric key cryptoperiods . 90
5.6 Keys used with public key algorithms . 91
5.6.1 Overview . 91
5.6.2 Key pair generation . 91
5.6.3 Public key certificates and infrastructure . 92
5.6.4 Certificate and certificate extension profile . 95
5.6.5 Suite B end entity certificate types to be supported by DLMS/COSEM
servers . 103
5.6.6 Management of certificates . 103
5.7 Applying cryptographic protection . 108
5.7.1 Overview .
...
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