SIST EN ISO 17419:2018

SLOVENSKI STANDARD
01-september-2018
1DGRPHãþD
SIST-TS CEN ISO/TS 17419:2014
Inteligentni transportni sistemi - Kooperativni sistemi - Globalna enotna
identifikacija (ISO 17419:2018)
Intelligent transport systems - Cooperative systems - Globally unique identification (ISO
17419:2018)
Intelligente Verkehrssysteme - Kooperative ITS - Klassifikation und Steuerung von ITS
Anwendungen im globalen Zusammenhang (ISO 17419:2018)
Systèmes intelligents de transport - Classification et gestion des applications de
systèmes intelligents de transport dans un contexte global (ISO 17419:2018)
Ta slovenski standard je istoveten z: EN ISO 17419:2018
ICS:
03.220.20 Cestni transport Road transport
35.240.60 Uporabniške rešitve IT v IT applications in transport
prometu
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 17419
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2018
EUROPÄISCHE NORM
ICS 03.220.20; 35.240.60 Supersedes CEN ISO/TS 17419:2014
English Version
Intelligent transport systems - Cooperative systems -
Globally unique identification (ISO 17419:2018)
Systèmes intelligents de transport - Systèmes Intelligente Verkehrssysteme - Kooperative ITS -
coopératifs - Identification unique au niveau global Klassifikation und Steuerung von ITS Anwendungen im
(ISO 17419:2018) globalen Zusammenhang (ISO 17419:2018)
This European Standard was approved by CEN on 9 June 2018.

CEN 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 CEN
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 CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 17419:2018 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 17419:2018) has been prepared by Technical Committee ISO/TC 204
"Intelligent transport systems" in collaboration with Technical Committee CEN/TC 278 “Intelligent
transport systems” the secretariat of which is held by NEN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by December 2018, and conflicting national standards
shall be withdrawn at the latest by December 2018.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes CEN ISO/TS 17419:2014.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 17419:2018 has been approved by CEN as EN ISO 17419:2018 without any modification.

INTERNATIONAL ISO
STANDARD 17419
First edition
2018-05
Intelligent transport systems —
Cooperative systems — Globally
unique identification
Systèmes intelligents de transport — Systèmes coopératifs —
Identification unique au niveau global
Reference number
ISO 17419:2018(E)
©
ISO 2018
ISO 17419:2018(E)
© ISO 2018
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved

ISO 17419:2018(E)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms . 4
5 Management issues . 6
5.1 General . 6
5.2 ITS communications architecture . 7
5.3 PKI architecture . 7
5.4 Regulations and policies . 7
5.5 ITS station . 8
5.5.1 ITS station architecture. 8
5.5.2 Instantiations of an ITS station . 9
5.6 Applications and messages . 9
5.6.1 ITS application . 9
5.6.2 ITS application class .10
5.6.3 ITS message sets .10
5.7 Communications .10
5.7.1 Addressing in the communication protocol stack.10
5.7.2 ITS-S management.11
5.7.3 ITS-S Security .11
5.8 Identifiers and addresses summary .11
6 GCMA organizational framework .13
6.1 Overview .13
6.2 Registration of globally unique identifiers .13
6.3 Certification of ITS-S equipment .14
6.4 Certification of ITS-S application processes .15
6.5 Issuance of ITS-SCU credentials .16
6.6 Issuance of certificates for real-time operation .17
6.7 ITS application repository . .17
6.8 Secure installation and maintenance of facilities and communication protocols.18
6.9 Registries .18
6.9.1 General.18
6.9.2 ITS application objects.18
6.9.3 ITS message sets .18
6.9.4 ITS regulatory regions . . .19
6.9.5 ITS policy regions .19
6.9.6 ITS port numbers .20
6.9.7 ITS flow types .20
6.9.8 ITS logical channels .20
6.9.9 ITS station units .20
6.9.10 ITS station communication units .20
6.9.11 ITS-S application process provisioner.21
6.9.12 ITS-S equipment manufacturers .21
6.9.13 ITS application object owners .21
6.9.14 ITS message set owners .21
6.9.15 ITS-S application process developers .22
6.9.16 ITS-S facility layer services .22
6.9.17 ITS-SCU configuration management centres .22
6.9.18 ITS communication protocol stacks .22
6.9.19 ITS protocol identifier .23
ISO 17419:2018(E)
6.9.20 IANA registries.23
6.9.21 IEEE registries .23
6.10 Wrong behaviour reporting .24
7 GCMA technical framework .24
7.1 Addresses and identifiers .24
7.1.1 Overview .24
7.1.2 ITS-AID .24
7.1.3 ITS-SAPID .25
7.1.4 ITS-MsgSetID .25
7.1.5 ITS-PN .25
7.1.6 ITS-FlowTypeID .26
7.1.7 ITS-LCHID .26
7.1.8 ITS-SUID .27
7.1.9 ITS-SCUID .27
7.1.10 ITS-S-APPID .27
7.1.11 ITS-RRID.27
7.1.12 ITS-PRID .27
7.1.13 ITS-SEMID .28
7.1.14 ITS-AOOID .28
7.1.15 ITS-ATT .28
7.1.16 ITS-MSOID .28
7.1.17 ITS-SAPIID .29
7.1.18 ITS-S-APDID .29
7.1.19 ITS-SAPSSID .29
7.1.20 ITS-SecAlgID .30
7.1.21 ITS-S-FSID .30
7.1.22 ITS-SCU-CMCID .30
7.1.23 ITS-ProtStckID .30
7.1.24 ITS-ProtID .30
7.2 Online management .30
7.2.1 Secure installation and maintenance of ITS-S application processes .30
7.2.2 Secure installation of ITS-S protocols and control functions .30
7.2.3 Registration of ITS-S application processes with the ITS-S management entity .31
7.2.4 Data flow management .31
7.2.5 Management of certificates for real-time communications . .31
7.2.6 Exception reporting.31
Annex A (normative) ASN.1 modules .32
Annex B (informative) ITS-AID allocation request template .43
Bibliography .45
iv © ISO 2018 – All rights reserved

ISO 17419:2018(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: www .iso .org/iso/foreword .html.
This document was prepared by ISO/TC 204, Intelligent transport systems.
This first edition cancels and replaces ISO/TS 17419:2014, which has been technically revised to become
an International Standard.
ISO 17419:2018(E)
Introduction
Classification and management of ITS applications in a global context covers more than just the ITS
applications themselves. It also covers elements of the environment in which ITS applications are
instantiated.
Intelligent Transport Systems (ITS) provide ITS services to users by execution of ITS applications which
typically requires communications between ITS station application processes residing in ITS station
units (ITS-SU). Communications includes messages dedicated to ITS applications, and messages from
ITS message sets.
[20]
Following the definition in TS 102 860 , ITS applications and ITS application classes are referred
to as ITS application objects. ITS application objects are uniquely identified by the registered “ITS
Application Identifier” (ITS-AID) specified in this document.
NOTE 1 An ITS application class groups ITS applications together that provide the same type of service, e.g.
“Electronic Fee Collection” (EFC), but operate in different contexts. Prior to start of service provisioning the
applicable context is negotiated. The definition of ITS application classes is based on the concept of the DSRC
[7]
Application entity as introduced in ISO 15628 , which is identified by a DSRCApplicationEntityID; negotiation of
the applicable context is performed by BST/VST exchange.
[20]
In ETSI TS 102 860 , ITS message sets were referred to as ITS application objects. This definition is
not adopted in this document due to the very different nature of ITS message sets and ITS application
objects. ITS message sets are uniquely identified by the registered “ITS Message Set Identifier” (ITS-
MsgSetID) specified in this document.
[20]
This document is an extension towards more general and global applicability of ETSI TS 102 860 .
This document introduces the term “ITS-S object” as a general reference to ITS application objects, ITS
message sets and other objects which may require globally unique identification and registration.
NOTE 2 Examples of other ITS-S objects are ITS-S communication protocols and ITS-S security protocols.
[9]–[12][14] [2]
Management of ITS-S objects is specified in the ISO 24102 series (all parts) and in ISO 17423 .
This document focuses on some management aspects related to authorized and controlled operation of
ITS-S objects, which requires considerations of ITS-S object identifiers, e.g. ITS-AID, ITS-MsgSetID, ITS-
SUID, ITS-SCUID, addresses and protocol identifiers used in the communication protocol stack of an
ITS-S, and others.
This document replaces ISO/TS 17419 without change of scope.
vi © ISO 2018 – All rights reserved

INTERNATIONAL STANDARD ISO 17419:2018(E)
Intelligent transport systems — Cooperative systems —
Globally unique identification
1 Scope
This document
— describes and specifies globally unique addresses and identifiers (ITS-S object identifiers) which
are both internal and external to ITS stations and are used for ITS station management,
— describes how ITS-S object identifiers and related technical parameters are used for classification,
registration and management of ITS applications and ITS application classes,
— describes how ITS-S object identifiers are used in the ITS communication protocol stack,
— introduces an organizational framework for registration and management of ITS-S objects,
— defines and specifies management procedures at a high functional level,
— is based on the architecture of an ITS station specified in ISO 21217:2014 as a Bounded Secured
Managed Domain (BSMD),
— specifies an ASN.1 module for the identifiers, addresses, and registry records identified in this
document, and
— specifies an ASN.1 module for a C-ITS Data Dictionary containing ASN.1 type definitions of general
interest.
2 Normative references
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.
ISO/IEC 8824-1:2015, Information technology — Abstract Syntax Notation One (ASN.1): Specification of
basic notation — Part 1
ISO 21217:2014, Intelligent transport systems — Communications access for land mobiles (CALM) —
Architecture
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 21217:2014 and the
following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at https: //www .electropedia .org/
— ISO Online browsing platform: available at https: //www .iso .org/obp
3.1
authorization
prescription that a particular behaviour shall not be prevented
Note 1 to entry: Unlike a permission, an authorization is an empowerment.
ISO 17419:2018(E)
Note 2 to entry: From Reference [21].
3.2
ITS application
instantiation of an ITS service that involves an association of two or more complementary ITS-S
application processes
[SOURCE: ISO 21217:2014, 3.9, modified — the Note 1 to entry is deleted]
3.3
ITS application class
ITS application designed for operation in different contexts involving real-time negotiation of the
appropriate context
Note 1 to entry: The functional concepts of “application class” and “application context” were introduced in
ISO 15628. ITS application class is used, e.g. in ISO 22418. An example of an application class can be found in
ISO 14906.
3.4
ITS application identifier
globally unique, registered number identifying an ITS application object
3.5
ITS application object
ITS application or ITS application class
3.6
ITS message
message designed for an ITS-related purpose
3.7
ITS message set
collection of one or more uniquely identified ITS messages
3.8
ITS message set identifier
globally unique, registered identifier of an ITS message set
3.9
ITS protocol stack identifier
globally unique, registered identifier of a non-parameterized communications protocol stack
3.10
ITS registration authority
entity authorized to register ITS-S object identifiers
3.11
ITS service
functionality provided to users of intelligent transport systems designed, e.g. to increase safety,
sustainability, efficiency, and comfort
[SOURCE: ISO 21217:2014, 3.11.]
3.12
ITS trusted authority
entity authorized to issue ITS-S object security credentials
3.13
ITS-S application process
element in an ITS station that performs information processing for a particular application, and may
use ITS-S services to transmit and receive information[SOURCE: ISO 21217:2014, 3.19, modified —
“uses” replaced by “may use”].
2 © ISO 2018 – All rights reserved

ISO 17419:2018(E)
3.14
ITS-S application process provisioner
functionality in an ITS-SU offering ITS-S application processes for download and installation to
other ITS-SUs
3.15
ITS-S communication protocol
protocol used in a communication protocol stack of an ITS-S
3.16
ITS-S communication protocol stack
consistent set of ITS-S communication protocols enabling communications between an ITS-SCU and
other nodes which may be identified by a registered globally unique reference number
[2]
Note 1 to entry: See ISO 17423 .
3.17
ITS-SCU configuration management centre
entity that retains information about capabilities of ITS-SCUs, status of objects in ITS-SCUs, and
supports management and update of this information
3.18
ITS-S object
entity used in ITS related to ITS-S management that may require a globally unique identifier
Note 1 to entry: Examples of ITS-S objects include ITS-SU, ITS-SCU, ITS application object, ITS message set, ITS-S
communication protocol, ITS flow type.
3.19
ITS-S object identifier
identifier of an ITS-S object
3.20
ITS-S object owner
entity responsible for the specification (design), maintenance and registration of an ITS-S object
3.21
ITS-S service
communication functionality of an ITS-S that provides the capability to connect to other nodes
[SOURCE: ISO 21217:2014,3.37.]
3.22
ITS-S unit
implementation of an ITS station
[SOURCE: ISO 21217:2014, 3.38.]
3.23
permission
rule that a particular behaviour is allowed to occur
[21]
Note 1 to entry: From ITU-T X.911 .
3.24
policy
set of rules related to a particular purpose, expressed as an obligation, an authorization, a permission
or a prohibition
[21]
Note 1 to entry: From ITU-T X.911 .
ISO 17419:2018(E)
3.25
prohibition
prescription that a particular behaviour shall not occur
[21]
Note 1 to entry: From ITU-T X.911 .
3.26
registration
assignment of an unambiguous name to an object in a way which makes the assignment available to
interested parties
[22]
Note 1 to entry: From ITU-T X.911 .
3.27
registration authority
entity such as an organization, a standard or an automated facility that performs registration of one or
more types of objects
[22]
Note 1 to entry: From ITU-T X.911 .
3.28
regulation
written instrument containing rules having the force of law
3.29
regulation
process of the promulgation, monitoring, and enforcement of rules defined in 'regulation
(document)', established by primary and/or delegated legislation
3.30
regulator
agency responsible for exercising autonomous authority over some area of human activity
3.31
violation
behaviour contrary to a rule
[21]
Note 1 to entry: From ITU-T X.911 .
4 Symbols and abbreviated terms
ARCP Application Requirements for selection of Communication Profiles
BSMD Bounded Secured Managed Domain
BST Beacon Service Table
CEN Commission Européenne de Normalization
C-ITS Co-operative Intelligent Transport Systems
ETSI European Telecommunications Standards Institute
GCMA Global Classification and Management of ITS Applications
IANA Internet Assigned Numbers Authority
IEEE Institute of Electrical and Electronics Engineers
IETF Internet Engineering Task Force
4 © ISO 2018 – All rights reserved

ISO 17419:2018(E)
ISO International Standards Organization
ITS Intelligent Transport Systems
ITS-ACID ITS Application Context Identifier
ITS-AID ITS Application Identifier
ITS-AOOID Application Object Owner (designer) Identifier
ITS-ATT ITS Access Technology Type
ITS-FlowTypeID ITS Flow Type Identifier
ITS-LCH ITS Logical Channel
ITS-LCHID ITS Logical Channel Identifier
ITS-MsgSetID ITS Message Set Identifier
ITS-MSOID ITS Message Set Owner Identifier
ITS-NTSDU ITS Station Networking and Transport layer Service Data Unit
ITS-PN ITS Port Number
ITS-PR ITS policy region
ITS-PRID ITS-PR Identifier
ITS-ProtID ITS Protocol Identifier
ITS-ProtStckID ITS Protocol Stack Identifier
ITS-RR ITS Regulatory Region
ITS-RRID ITS Regulatory Region Identifier
ITS-S ITS Station
ITS-SAPID ITS-S Application Process Identifier
ITS-SAPIID ITS-S Application Process Instance Identifier
ITS-S-APDID ITS-S Application Process Developer Identifier
ITS-S-APP ITS-S application Process Provisioner
ITS-S-APPID ITS-S Application Process Provider Identifier
ITS-SAPSSID ITS-S Application Process Sink Source Identifier
ITS-SCU ITS Station Communication Unit
ITS-SCU-CMC ITS-SCU Configuration Management Centre
ITS-SCU-CMCID ITS-SCU-CMD Identifier
ITS-SCUID ITS-SCU Identifier
ITS-SecAlgID ITS Security Algorithm Identifier
ISO 17419:2018(E)
ITS-SEMID ITS Station Equipment Manufacturer Identifier
ITS-S-FSID ITS-S Facilities layer Service Identifier
ITS-SU ITS Station Unit
ITS-SUID ITS-SU Identifier
ITS-SU-UID ITS-SU User Identifier
LDM Local dynamic map
VST Vehicle Service Table
5 Management issues
NOTE This is an informative clause.
5.1 General
In this document, application management refers to objects and procedures, both internal and external to
the platforms on which the applications are installed, which are used to ensure the efficacy and authenticity
1)
of these applications and these platforms. Platforms in this context are ITS station communication units
(ITS-SCUs) and applications are ITS-S application processes as specified in ISO 21217:2014. Application
management procedures involve protocols for exchanging information between the various entities
involved in application management, and these procedures are described at a functional level in this
document. These procedures are to be used for authorizing and authenticating the use of ITS-S application
entities over communication networks as described in ISO 21217:2014 and in 5.2.
Entities related to ITS application management in the global context and their roles identified and / or
specified in this document are listed in Table 1.
Table 1 — Entities and their roles
Entity Role
ITS-S object Entity used in ITS related to ITS-S management that may be identified by a glob-
ally unique identifier.
EXAMPLE  ITS application objects, ITS message sets, ITS-S communication pro-
tocols, ITS-S units, ITS-S communication units.
ITS-S object owner Entity which is responsible for the specification (design), maintenance and regis-
tration of ITS-S objects.
EXAMPLE  Standards development organizations, industry special interest
groups such as the “Society of Automotive Engineers” (SAE).
ITS application object Entity that provides an ITS service to the user as specified in ISO 21217:2014.
EXAMPLE  ITS applications and ITS application classes.
ITS message set Set of ITS messages designed for an ITS-related purpose as specified in
ISO 21217:2014.
ITS-S communication pro- Protocol used in a communication protocol stack of an ITS-S
tocol
ITS-S unit (ITS-SU) Physical instantiation of an ITS station specified in ISO 21217:2014. An ITS-SU
may consist of one single ITS-SCU, or several ITS-SCUs interconnected via an
ITS station internal network. An ITS-SU is also referred to as “Bounded Secured
Managed Entity” as specified in ISO 21217:2014.
1)  An ITS-SU may consist of several physical units called ITS-SCUs as specified in ISO 21217:2014.
6 © ISO 2018 – All rights reserved

ISO 17419:2018(E)
Table 1 (continued)
Entity Role
ITS-S communication unit Physical unit in an ITS-SU containing a part or all of the functionality of an ITS-S
(ITS-SCU) as specified in ISO 21217:2014.
ITS-S equipment manufac- Manufacturer of ITS-SUs or ITS-SCUs.
turer
ITS-S application process Developer (manufacturer) of ITS-S application processes for usage in ITS-SUs.
developer
ITS-S application process Entity that offers ITS-S application processes for download to an ITS-SCU.
provisioner
ITS-SCU configuration man- Entity that retains information about the capabilities of ITS-SUs, status of ob-
agement centre jects in ITS-SUs, and supports management and update of this information.
Certification authority (Cer- Entity in charge of checking ITS-SCUs, implementations of ITS-S communication
tification laboratory) protocols, and ITS-S application processes for compliance to standards or speci-
fications defined in an ITS release.
ITS registration authority Entity in charge of registering ITS-S objects referenced by globally unique iden-
tifiers.
ITS trusted authority Entity in charge of providing ITS-S object security credentials such as keys and
certificates for hardware and software.
5.2 ITS communications architecture
As illustrated in Figure 1, regardless of the complexity of the networks employed, communication
between “ITS station units” (ITS-SUs), and between ITS-SUs and other types of ITS communication
nodes, is on a peer-to-peer basis. The distinguishing feature of ITS-SUs is that of trust and authentication
as discussed in 5.5.1. The need for trust and authentication arises from the deployment of critical
safety-of-life and property applications. This leads to the definition of an ITS station as a “Bounded
Secured Managed Domain” (BSMD) as specified in ISO 21217:2014, and the requirement for a “Public
Key Infrastructure” (PKI) for trust assertion and certificate management.
Figure 1 — Simplified ITS peer-to-peer communication architecture
5.3 PKI architecture
A public-key infrastructure (PKI) is a system for the creation, storage, distribution, and revocation of
digital certificates which are used to verify that a particular public key and associated rights belong to
a certain entity. The PKI creates digital certificates which map public keys to entities and their rights,
securely stores these certificates in a central repository, and revokes them if needed.
5.4 Regulations and policies
Application management procedures shall comply with applicable regulation and use applicable policies.
A policy is a set of rules related to a particular purpose. Such a rule can be expressed as an obligation,
an authorization, a permission, or a prohibition. A regulation is an enforceable policy. Regulations apply
ISO 17419:2018(E)
for a specific regulatory domain and are produced and maintained by regulators. Policies apply for a
specific policy domain.
The need and applicability for regulations and policies in ITS is identified in this document for the
following purposes:
— radio frequency allocation and usage;
— privacy issues;
— traffic operations and management.
A regulatory region is uniquely identified by an ITS Regulatory Region Identifier ITS-RRID.
A policy region is uniquely identified by an ITS Policy Region Identifier ITS-PRID.
5.5 ITS station
5.5.1 ITS station architecture
The architecture of the ITS station (ITS-S) specified in ISO 21217:2014 is illustrated in Figure 2.
Figure 2 — ITS station architecture [ISO 21217:2014]
The term ITS-S refers to functionalities rather than a physical unit. Six functional blocks of an ITS-S are
distinguished in Figure 2:
— “Applications”:
— ITS-S applications
— “Communications”:
— Data plane
— “Access”: ITS-S access layer, i.e. OSI layers one and two.
— “Networking & Transport”: ITS-S networking and transport layer, i.e. OSI layers three and four.
— “Facilities”: ITS-S facilities layer, i.e. OSI layers five, six and seven.
— Management plane
8 © ISO 2018 – All rights reserved

ISO 17419:2018(E)
— “Management”: ITS-S management entity
— “Security”: ITS-S security entity
These functional blocks are assumed to interact with each other within a BSMD. Implementation and
maintenance of these functional blocks in a standards conformant manner creates ITS-SUs and ITS-
SCUs that can be trusted to operate according to the policies and procedures assigned to them by
trusted authorities. It is precisely the attribute of trust within the ITS domain that distinguishes ITS-
SUs Bounded Secured Managed Entities (BSMEs) from all other communication nodes. As a managed
domain, elements of the ITS-S need to be aware of and interact with the ITS-S management entity. As a
secured domain, installation (e.g. “plug-and-play”) of an element of an ITS-S such as an ITS-S application,
communication interface, or a communication protocol shall be performed in a control
...