CEN ISO/TS 24534-4:2008

SLOVENSKI STANDARD
01-junij-2008
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Automatic vehicle and equipment identification - Electronic Registration Identification
(ERI) for vehicles - Part 4: Secure communications using asymmetrical techniques
(ISO/TS 24534-4:2008)
Straßenverkehrstelematik (RTTT) - Automatische Identifizierung von Fahrzeugen und
Ausrüstungen - Elektronische Identifizierung für die Registrierung (ERI) - Teil 4: Sichere
Anwendungsebene mittels asymmetrischer Techniken (ISO/TS 24534-4:2008)
Identification automatique des véhicules et des équipements - Identification
d'enregistrement électronique (ERI) pour les véhicules - Partie 4: Communications sûres
utilisant des techniques asymétriques (ISO/TS 24534-4:2008)
Ta slovenski standard je istoveten z: CEN ISO/TS 24534-4:2008
ICS:
03.220.20 Cestni transport Road transport
35.240.60 Uporabniške rešitve IT v IT applications in transport
transportu in trgovini and trade
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL SPECIFICATION
CEN ISO/TS 24534-4
SPÉCIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION
February 2008
ICS 35.240.60; 03.220.20
English Version
Automatic vehicle and equipment identification - Electronic
Registration Identification (ERI) for vehicles - Part 4: Secure
communications using asymmetrical techniques (ISO/TS 24534-
4:2008)
Identification automatique des véhicules et des Straßenverkehrstelematik (RTTT) - Automatische
équipements - Identification d'enregistrement électronique Identifizierung von Fahrzeugen und Ausrüstungen -
(ERI) pour les véhicules - Partie 4: Communications sûres Elektronische Identifizierung für die Registrierung (ERI) -
utilisant des techniques asymétriques (ISO/TS 24534- Teil 4: Sichere Anwendungsebene mittels asymmetrischer
4:2008) Techniken (ISO/TS 24534-4:2008)
This Technical Specification (CEN/TS) was approved by CEN on 17 July 2006 for provisional application.
The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to submit their
comments, particularly on the question whether the CEN/TS can be converted into a European Standard.
CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS available
promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in parallel to the CEN/TS)
until the final decision about the possible conversion of the CEN/TS into an EN is reached.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
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© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN ISO/TS 24534-4:2008: E
worldwide for CEN national Members.

Contents Page
Foreword.3

Foreword
This document (CEN ISO/TS 24534-4:2008) has been prepared by Technical Committee CEN/TC 278 "Road
transport and traffic telematics", the secretariat of which is held by NEN, in collaboration with Technical
Committee ISO/TC 204 "Transport information and control systems".
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to announce this CEN Technical Specification: Austria, Belgium, Bulgaria, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
TECHNICAL ISO/TS
SPECIFICATION 24534-4
First edition
2008-02-15
Automatic vehicle and equipment
identification — Electronic Registration
Identification (ERI) for vehicles —
Part 4:
Secure communications using
asymmetrical techniques
Identification automatique des véhicules et des équipements —
Identification d'enregistrement électronique (ERI) pour les véhicules —
Partie 4: Communications sûres utilisant des techniques asymétriques

Reference number
ISO/TS 24534-4:2008(E)
©
ISO 2008
ISO/TS 24534-4:2008(E)
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ii © ISO 2008 – All rights reserved

ISO/TS 24534-4:2008(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope . 1
2 Normative references . 2
3 Terms and definitions. 2
4 Abbreviations . 11
5 System communications concept. 12
5.1 Introduction . 12
5.2 Overview . 12
5.3 Security services . 19
5.4 Communication architecture description. 24
5.5 Interfaces . 26
6 Interface requirements . 27
6.1 Overview . 27
6.2 Abstract transaction definitions. 28
6.3 The ERT interfaces . 65
Annex A (normative) ASN.1 Modules. 69
Annex B (informative) Operational scenarios . 80
Annex C (normative) PICS pro forma. 91
Bibliography . 95

ISO/TS 24534-4:2008(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
In other circumstances, particularly when there is an urgent market requirement for such documents, a
technical committee may decide to publish other types of normative document:
— an ISO Publicly Available Specification (ISO/PAS) represents an agreement between technical experts in
an ISO working group and is accepted for publication if it is approved by more than 50 % of the members
of the parent committee casting a vote;
— an ISO Technical Specification (ISO/TS) represents an agreement between the members of a technical
committee and is accepted for publication if it is approved by 2/3 of the members of the committee casting
a vote.
An ISO/PAS or ISO/TS is reviewed after three years in order to decide whether it will be confirmed for a
further three years, revised to become an International Standard, or withdrawn. If the ISO/PAS or ISO/TS is
confirmed, it is reviewed again after a further three years, at which time it must either be transformed into an
International Standard or be withdrawn.
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.
ISO/TS 24534-4 was prepared by Technical Committee ISO/TC 204, Intelligent transport systems, and by
Technical Committee CEN/TC 278, Road transport and traffic telematics in collaboration.
ISO/TS 24534 consists of the following parts, under the general title Automatic vehicle and equipment
identification — Electronic Registration Identification (ERI) for vehicles:
⎯ Part 1: Architecture
⎯ Part 2: Operational requirements
⎯ Part 3: Vehicle data
⎯ Part 4: Secure communications using asymmetrical techniques
⎯ Part 5: Secure communications using symmetrical techniques
iv © ISO 2008 – All rights reserved

ISO/TS 24534-4:2008(E)
Introduction
A quickly emerging need has been identified within administrations to improve the unique identification of
vehicles for a variety of services. Situations are already occurring where manufacturers intend to fit lifetime
tags to vehicles. Various governments are considering the needs/benefits of ERI such as legal proof of vehicle
identity with potential mandatory usages. There is a commercial and economic justification both in respect of
tags and infrastructure that a standard enables an interoperable solution.
Electronic Registration Identification (ERI) is a means of uniquely identifying road vehicles. The application of
ERI will offer significant benefits over existing techniques for vehicle identification. It will be an enabling
technology for the future management and administration of traffic and transport, including applications in
free-flow, multi-lane, traffic conditions with the capability to support mobile transactions. ERI addresses the
need of authorities and other users for a trusted electronic identification, including roaming vehicles.
This part of ISO/TS 24534 specifies the application layer interfaces for the exchange of data between an
onboard component containing the ERI data and a reader or writer inside or outside the vehicle.
The exchanged identification data consists of a unique vehicle identifier and may also include data typically
found in the vehicle's registration certificate. The authenticity of the exchanged vehicle data can be further
enhanced by ensuring data has been obtained by request from a commissioned device, with the data
electronically signed by the registration authority.
In order to facilitate (internatio
...