Electricity metering data exchange - The DLMS/COSEM suite - Part 5-3: DLMS/COSEM application layer

This part of IEC 62056 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.
Annex A (normative) defines how to use the COSEM application layer in various
communication profiles. It specifies how various communication profiles can be constructed
for exchanging data with metering equipment using the COSEM interface model, and what are
the necessary elements to specify in each communication profile. The actual, media-specific
communication profiles are specified in separate parts of the IEC 62056 series.
Annex B (normative) specifies the SMS short wrapper.
Annex C (normative) specifies the gateway protocol.
Annex D, Annex E and Annex F (informative) include encoding examples for APDUs.
Annex G (normative) provides NSA Suite B elliptic curves and domain parameters.
Annex H (informative) provides an example of an End entity signature certificate using P-256
signed with P-256.
Annex I (normative) specifies the use of key agreement schemes in DLMS/COSEM.
Annex J (informative) provides examples of exchanging protected xDLMS APDUs between a
third party and a server.
Annex K (informative) lists the main technical changes in this edition of the standard.

Datenkommunikation der elektrischen Energiemessung - DLMS/COSEM - Teil 5-3: DLMS/COSEM-Anwendungsschicht

Échange 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).

Izmenjava podatkov pri merjenju električne energije - Niz DLMS/COSEM - 5-3. del: Aplikacijska plast DLMS/COSEM

Ta del standarda IEC 62056 določa aplikacijsko plast DLMS/COSEM v smislu strukture, storitev in protokolov za odjemalce ter strežnike DLMS/COSEM in opredeljuje pravila za določanje komunikacijskih profilov DLMS/COSEM.
Določa storitve za vzpostavljanje in izdajanje povezav aplikacij in podatkovne komunikacijske storitve za dostop do metod in atributov vmesniških objektov COSEM iz standarda IEC 62056-6-2 z uporabo reference logičnega (LN) ali kratkega imena (SN).
Dodatek A (normativni) opredeljuje, kako se pri različnih komunikacijskih profilih uporablja aplikacijska plast COSEM. Določa, kako so lahko različni komunikacijski profili izdelani za izmenjavo podatkov z opremo za merjenje, ki uporablja vmesniški model COSEM, in kateri so potrebni elementi, ki jih je treba določiti v posameznem komunikacijskem profilu. Dejanski komunikacijski profili, ki se uporabljajo za medije, so opredeljeni v ločenih delih skupine standardov IEC 62056.
Dodatek B (normativni) določa kratko ovojnico za SMS.
Dodatek C (normativni) določa usmerjevalni protokol.
Dodatki D, E in F (informativni) vključujejo primere kodiranja za podatkovne enote aplikacijskega protokola (APDU).
Dodatek G (normativni) podaja eliptične krivulje NSA Suite B in domenske parametre.
Dodatek H (informativni) podaja primer certifikata podpisa končne entitete, ki uporablja krivuljo P-256 in je z njo tudi podpisan.
Dodatek I (normativni) določa uporabo shem za določanje ključa v okviru specifikacije DLMS/COSEM.
Dodatek J (informativni) podaja primere izmenjave zaščitenih podatkovnih enot APDU xDLMS med trejo osebo in strežnikom.
Dodatek K (informativni) navaja glavne tehnične spremembe v tej izdaji standarda.

General Information

Status
Published
Publication Date
10-Dec-2017
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
14-Nov-2017
Due Date
19-Jan-2018
Completion Date
11-Dec-2017

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SLOVENSKI STANDARD
SIST EN 62056-5-3:2018
01-januar-2018
1DGRPHãþD
SIST EN 62056-5-3:2017
,]PHQMDYDSRGDWNRYSULPHUMHQMXHOHNWULþQHHQHUJLMH1L]'/06&26(0GHO
$SOLNDFLMVNDSODVW'/06&26(0
Electricity metering data exchange - The DLMS/COSEM suite - Part 5-3: DLMS/COSEM
application layer
Datenkommunikation der elektrischen Energiemessung - DLMS/COSEM - Teil 5-3:
DLMS/COSEM-Anwendungsschicht

Échange des données de comptage de l'électricité - La suite DLMS/COSEM - Partie 5-3:

Couche application DLMS/COSEM
Ta slovenski standard je istoveten z: EN 62056-5-3:2017
ICS:
17.220.20 0HUMHQMHHOHNWULþQLKLQ Measurement of electrical
PDJQHWQLKYHOLþLQ and magnetic quantities
35.100.70 Uporabniški sloj Application layer
91.140.50 Sistemi za oskrbo z elektriko Electricity supply systems
SIST EN 62056-5-3:2018 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 62056-5-3:2018
---------------------- Page: 2 ----------------------
SIST EN 62056-5-3:2018
EUROPEAN STANDARD EN 62056-5-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2017
ICS 17.220; 35.110; 91.140.50 Supersedes EN 62056-5-3:2016
English Version
Electricity metering data exchange - The DLMS/COSEM suite -
Part 5-3: DLMS/COSEM application layer
(IEC 62056-5-3:2017)

Échange des données de comptage de l'électricité - La Datenkommunikation der elektrischen Energiemessung -

suite DLMS/COSEM - Partie 5-3: Couche application DLMS/COSEM - Teil 5-3: DLMS/COSEM-

DLMS/COSEM Anwendungsschicht
(IEC 62056-5-3:2017) (IEC 62056-5-3:2017)

This European Standard was approved by CENELEC on 2017-09-14. CENELEC members are bound to comply with the CEN/CENELEC

Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC

Management Centre or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation

under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the

same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,

Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,

Switzerland, Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN 62056-5-3:2017 E
---------------------- Page: 3 ----------------------
SIST EN 62056-5-3:2018
EN 62056-5-3:2017
European foreword

The text of document 13/1744/FDIS, future edition 3 of IEC 62056-5-3, prepared by IEC/TC 13

"Electrical energy measurement and control" was submitted to the IEC-CENELEC parallel vote and

approved by CENELEC as EN 62056-5-3:2017.
The following dates are fixed:
(dop) 2018-06-14
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2020-09-14
standards conflicting with the
document have to be withdrawn
This document supersedes EN 62056-5-3:2016.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Endorsement notice

The text of the International Standard IEC 62056-5-3:2017 was approved by CENELEC as a

European Standard without any modification.

In the official version, for Bibliography, the following notes have to be added for the standards

indicated:
IEC 61334-4-32:1996 NOTE Harmonized as EN 61334-4-32:1996.
IEC 61334-4-511:2000 NOTE Harmonized as EN 61334-4-511:2000.
IEC 61334-4-512:2000 NOTE Harmonized as EN 61334-4-512:2001.
IEC 61334-5-1:2001 NOTE Harmonized as EN 61334-5-1:2001.
IEC 62056-1-0 NOTE Harmonized as EN 62056-1-0.
IEC 62056-6-1:2017 NOTE Harmonized as FprEN 62056-6-1:2017.
IEC 62056-7-3:2017 NOTE Harmonized as EN 62056-7-3:2017.
IEC 62056-7-6:2013 NOTE Harmonized as EN 62056-7-6:2013.
IEC 62056-9-7:2013 NOTE Harmonized as EN 62056-9-7:2013.
IEC 62056-8-5 NOTE Harmonized as EN 62056-8-5.
IEC 62056-8-5 NOTE Harmonized as EN 62056-8-5.
1) To be published. At draft stage.
---------------------- Page: 4 ----------------------
SIST EN 62056-5-3:2018
EN 62056-5-3:2017
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments)

applies.

NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant

EN/HD applies.

NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:

www.cenelec.eu.
Publication Year Title EN/HD Year

IEC 61334-4-41 1996 Distribution automation using distribution EN 61334-4-41 1996

line carrier systems -- Part 4: Data
communication protocols -- Section 41:
Application protocols - Distribution line
message specification
IEC 61334-6 2000 Distribution automation using distribution EN 61334-6 2000
line carrier systems -- Part 6: A-XDR
encoding rule

IEC 62056-6-2 2017 Electricity metering data exchange - The FprEN 62056-6-2 2017

DLMS/COSEM suite - Part 6-2: COSEM
interface classes
IEC 62056-8-3 2013 Electricity metering data exchange - The EN 62056-8-3 2013
DLMS/COSEM suite -- Part 8-3:
Communication profile for PLC S-FSK
neighbourhood networks
IEC/TR 62051 1999 Electricity metering - Glossary of terms - -
IEC/TR 62051-1 2004 Electricity metering - Data exchange for - -
meter reading, tariff and load control -
Glossary of terms -- Part 1: Terms related
to data exchange with metering equipment
using DLMS/COSEM
ISO/IEC 8824-1 - Information technology - Abstract Syntax - -
Notation One (ASN.1): Specification of
basic notation
ISO/IEC 8825-1 2015 Information technology - ASN.1 encoding - -
rules: Specification of Basic Encoding
Rules (BER), Canonical Encoding Rules
(CER) and Distinguished Encoding Rules
(DER)
ISO/IEC 15953 1999 Information technology - Open Systems - -
Interconnection - Service definition for the
application service object association
control service element
ISO/IEC 15954 1999 Information technology - Open Systems - -
Interconnection - Connection-mode
protocol for the application service object
association control service element
FIPS PUB 180-4 2012 Secure Hash Standard (SHS) - -
FIPS PUB 186-4 2013 Digital Signature Standard (DSS) - -
FIPS PUB 197 2001 Advanced Encryption Standard (AES) - -
ITU-T V.44 2000 Series V: Data Communication over the - -
telephone network - Error control - Data
compression procedure
ITU-T X.509 2008 Information technology - Open systems - -
interconnection - The Directory: Public-key
and attribute certificate frameworks
---------------------- Page: 5 ----------------------
SIST EN 62056-5-3:2018
EN 62056-5-3:2017
ITU-T X.693 - Information technology - ASN.1 encoding - -
rules: XML Encoding rules (XER)
ITU-T X.693 - Information technology - ASN.1 encoding - -
Corrigendum 1 rules: XML Encoding Rules (XER)
Technical Corrigendum 1
ITU-T X.694 - Information technology - ASN.1 encoding - -
rules: Mapping W3C XML schema
definitions into ASN.1
ITU-T X.694 - Information technology - ASN.1 encoding - -
Corrigendum rules: Mapping W3C XML schema
definitions into ASN.1 Technical
corrigendum 1
NIST SP 800-21 2005 Guideline for Implementing Cryptography - -
in the Federal Government
NIST SP 800-32 2001 Introduction to Public Key Technology and - -
the Federal PKI Infrastructure
NIST SP 800-38D - Recommendation for Block Cipher Modes - -
of Operation: Galois/Counter Mode (GCM)
and GMAC
NIST SP 800-56A - Recommendation for Pair-Wise Key - -
rev2 Establishment Schemes Using Discrete
Logarithm Cryptography
NIST SP 800-57 - Recommendation for Key Management, - -
Part 1: General (Revision 3)
NSA1 - Suite B Implementer's Guide to FIPS 186-3 - -
(ECDSA)
NSA2 - Suite B Implementer's guide to NIST - -
SP800-56A
NSA3 - NSA Suite B Base Certificate and CRL - -
Profile
RFC 3394 - Internet Engineering Task Force (IETF). - -
Advanced Encryption Standard (AES) Key
Wrap Algorithm. Edited by J. Schaad
(Soaring Hawk Consulting) and R. Housley
(RSA Laboratories)
RFC 5280 - Internet X.509 Public Key Infrastructure - -
Certificate and Certificate Revocation List
(CRL) Profile
---------------------- Page: 6 ----------------------
SIST EN 62056-5-3:2018
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

Warning! Make sure that you obtained this publication from an authorized distributor.

® Registered trademark of the International Electrotechnical Commission
---------------------- Page: 7 ----------------------
SIST EN 62056-5-3:2018
– 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

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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

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6.18 Client side layer management services: the SetMapperTable.request ................. 171

6.19 Summary of services and LN/SN data transfer service mapping .......................... 171

7 DLMS/COSEM application layer protocol specification ................................................. 173

7.1 The control function ............................................................................................ 173

7.1.1 State definitions of the client side control function ....................................... 173

7.1.2 State definitions of the server side control function ...................................... 174

7.2 The ACSE services and APDUs .......................................................................... 175

7.2.1 ACSE functional units, services and service parameters .............................. 175

7.2.2 Registered COSEM names .......................................................................... 179

7.2.3 APDU encoding rules ................................................................................... 182

7.2.4 Protocol for application association establishment ....................................... 182

7.2.5 Protocol for application association release ................................................. 187

7.3 Protocol for the data transfer services ................................................................. 191

7.3.1 Negotiation of services and options – the conformance block ...................... 191

7.3.2 Confirmed and unconfirmed service invocations .......................................... 192

7.3.3 Protocol for the GET service ........................................................................ 193

7.3.4 Protocol for the SET service ........................................................................ 197

7.3.5 Protocol for the ACTION service .................................................................. 200

7.3.6 Protocol for the ACCESS service ................................................................. 202

7.3.7 Protocol of the DataNotification service ....................................................... 204

7.3.8 Protocol for the EventNotification service ..................................................... 204

7.3.9 Protocol for the Read service ....................................................................... 204

7.3.10 Protocol for the Write service ....................................................................... 208

7.3.11 Protocol for the UnconfirmedWrite service ................................................... 213

7.3.12 Protocol for the InformationReport service ................................................... 214

7.3.13 Protocol of general block transfer mechanism .............................................. 215

8 Abstract syntax of ACSE and COSEM APDUs ............................................................. 226

9 COSEM APDU XML schema ........................................................................................ 239

9.1 General ............................................................................................................... 239

9.2 XML Schema ...................................................................................................... 240

Annex A (normative) Using the DLMS/COSEM application layer in various

communications profiles .............................................................................................. 261

A.1 General ............................................................................................................... 261

A.2 Targeted communication environments ............................................................... 261

A.3 The structure of the profile .................................................................................. 261

A.4 Identification and addressing schemes ................................................................ 261

A.5 Supporting layer services and service mapping ................................................... 262

A.6 Communication profile specific parameters of the COSEM AL services ............... 262

A.7 Specific considerations / constraints using certain services within a given

profile ................................................................................................................. 262

A.8 The 3-layer, connection-oriented, HDLC based communication profile ................ 262

A.9 The TCP-UDP/IP based communication profiles (COSEM_on_IP) ....................... 262

A.10 The wired and wireless M-Bus communication profiles ........................................ 262

A.11 The S-FSK PLC profile ........................................................................................ 262

Annex B (normative) SMS short wrapper............................................................................ 263

Annex C (normative) Gateway protocol .............................................................................. 264

C.1 General ............................................................................................................... 264

C.2 The gateway protocol .......................................................................................... 265

C.3 HES in the WAN/NN acting as Initiator (Pull operation) ....................................... 266

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C.4 End devices in the LAN acting as Initiators (Push operation) ............................... 267

C.4.1 General ....................................................................................................... 267

C.4.2 End device with WAN/NN knowledge ........................................................... 267

C.4.3 End devices without WAN/NN knowledge .................................................... 268

C.5 Security .............................................................................................................. 268

Annex D (informative) AARQ and AARE encoding examples .............................................. 269

D.1 General ............................................................................................................... 269

D.2 Encoding of the xDLMS InitiateRequest / InitiateResponse APDU ....................... 269

D.3 Specification of the AARQ and AARE APDUs ..................................................... 272

D.4 Data for the examples ......................................................................................... 273

D.5 Encoding of the AARQ APDU .............................................................................. 274

D.6 Encoding of the AARE APDU .............................................................................. 277

Annex E (informative) Encoding examples: AARQ and AARE APDUs using a ciphered

application context ....................................................................................................... 283

E.1 A-XDR encoding of the xDLMS InitiateRequest APDU, carrying a dedicated

key...................................................................................................................... 283

E.2 Authenticated encryption of the xDLMS InitiateRequest APDU ............................ 284

E.3 The AARQ APDU ................................................................................................ 285

E.4 A-XDR encoding of the xDLMS InitiateResponse APDU ...................................... 287

E.5 Authenticated encryption of the xDLMS InitiateResponse APDU ......................... 288

E.6 The AARE APDU ................................................................................................ 289

E.7 The RLRQ APDU (carrying a ciphered xDLMS InitiateRequest APDU) ................ 291

E.8 The RLRE APDU (carrying a ciphered xDLMS InitiateResponse APDU) .............. 292

Annex F (informative) Data transfer service examples ....................................................... 293

F.1 GET / Read, SET / Write examples ..................................................................... 293

F.2 ACCESS service example ................................................................................... 310

F.3 Compact array encoding example ....................................................................... 311

F.3.1 General ................................................
...

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