EN ISO 14819-6:2006

SLOVENSKI STANDARD
01-september-2006
3URPHWQHLQSRWRYDOQHLQIRUPDFLMH77,6SRURþLOD77,SUHNNRGLUDQLKSURPHWQLK
VSRURþLO±GHO(QNULSFLMDLQSRJRMQLGRVWRS]DUDGLMVNLSRGDWNRYQLVLVWHP5'6
±3URPHWQLVSRURþLOQLNDQDOVNRGLUDQMHP$/(57&,62
Traffic and Traveller Information (TTI) - TTI messages via traffic message coding - Part
6: Encryption and conditional access for the Radio Data System - Traffic Message
Channel ALERT C coding (ISO 14819-6:2006)
Verkehrs- und Reiseinformationen-TTI - Meldungen über Verkehrsmeldungscodierung -
Teil 6: Verschlüsselung und Zugangsbedingungen für das Radio Datensystem -
Verkehrsmeldungskanal ALERT C Kodierung (ISO 14819-6:2006)
Informations sur le trafic et le tourisme (TTI) - Messages TTI via le codage de messages
sur le trafic - Partie 6: Acces au cryptage et acces conditionnel pour le systeme de
radiodiffusion de données - Codage ALERT C du canal de messages sur le trafic (ISO
14819-6:2006)
Ta slovenski standard je istoveten z: EN ISO 14819-6:2006
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.

EUROPEAN STANDARD
EN ISO 14819-6
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2006
ICS 03.220.20; 35.240.60
English Version
Traffic and Traveller Information (TTI) - TTI messages via traffic
message coding - Part 6: Encryption and conditional access for
the Radio Data System - Traffic Message Channel ALERT C
coding (ISO 14819-6:2006)
Informations sur le trafic et le tourisme (TTI) - Messages Verkehrs- und Reiseinformationen-TTI - Meldungen über
TTI via le codage de messages sur le trafic - Partie 6: Verkehrsmeldungscodierung - Teil 6: Verschlüsselung und
Accès au cryptage et accès conditionnel pour le système Zugangsbedingungen für das Radio Datensystem -
de radiodiffusion de données - Codage ALERT C du canal Verkehrsmeldungskanal ALERT C Kodierung (ISO 14819-
de messages sur le trafic (ISO 14819-6:2006) 6:2006)
This European Standard was approved by CEN on 20 March 2006.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, 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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 14819-6:2006: E
worldwide for CEN national Members.

Foreword
This document (EN ISO 14819-6:2006) 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".
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 October 2006, and conflicting national
standards shall be withdrawn at the latest by October 2006.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium,
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.

INTERNATIONAL ISO
STANDARD 14819-6
First edition
2006-04-15
Traffic and Traveller Information (TTI) —
TTI messages via traffic message
coding —
Part 6:
Encryption and conditional access for the
Radio Data System — Traffic Message
Channel ALERT C coding
Informations sur le trafic et le tourisme (TTI) — Messages TTI via le
codage de messages sur le trafic —
Partie 6: Accès au cryptage et accès conditionnel pour le système de
radiodiffusion de données — Codage ALERT C du canal de messages
sur le trafic
Reference number
ISO 14819-6:2006(E)
©
ISO 2006
ISO 14819-6:2006(E)
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ii © ISO 2006 – All rights reserved

ISO 14819-6:2006(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions. 2
4 Symbols and abbreviations . 3
5 Notation . 4
6 Application description. 4
6.1 Introduction to RDS group bit pattern and notation . 4
6.2 RDS-TMC and Open Data Application . 5
6.3 Summary of TMC data elements in type 8A groups. 7
7 Principles of the Encryption and Conditional Access methodology . 8
8 Encryption by the service provider. 9
8.1 Service provider’s requirements. 9
8.2 Use of type 8A groups for RDS-TMC encryption. 9
8.3 Encryption Administration group . 10
8.4 Encrypting location codes. 12
9 Access to decrypted services by a terminal. 13
9.1 Terminal manufacturer’s basic requirements. 13
9.2 Activation of a terminal . 14
9.3 Identifying an encrypted RDS-TMC service . 15
9.4 Decrypting location codes. 15
10 Introduction of Encrypted services . 16
10.1 Terminal responses. 17
10.2 De facto strategy valid only for service providers wishing to generate revenue, prior to
general availability of encryption. 17
10.3 Actions for existing providers of unencrypted TMC services . 17
10.4 Actions for potential providers of TMC services. 18
10.5 Timescales. 18
Bibliography . 19

ISO 14819-6:2006(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.
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 14819-6 was prepared by Technical Committee ISO/TC 204, Intelligent transport systems, in
collaboration with CEN Technical Committee CEN/TC 278, Road transport and traffic telematics, the
secretariat of which is held by NEN.
ISO 14819 consists of the following parts, under the general title Traffic and Traveller Information (TTI) — TTI
messages via traffic message coding:
— Part 1: Coding protocol for Radio Data System — Traffic Message Channel (RDS-TMC) using ALERT-C
— Part 2: Event and information codes for Radio Data System — Traffic Message Channel (RDS-TMC)
— Part 3: Location referencing for ALERT-C
— Part 6: Encryption and conditional access for the Radio Data System — Traffic Message Channel ALERT
C coding
iv © ISO 2006 – All rights reserved

ISO 14819-6:2006(E)
Introduction
Traffic and traveller information may be disseminated through a number of services or means of
communication. For such services, the data to be disseminated and the message structure involved in the
various interfaces require clear definition and standard formats, in order to allow competitive products to exist
with any received data.
The most widely supported data specification for TTI messages within Europe and elsewhere is RDS-TMC,
specified in Parts 1, 2 and 3 of EN ISO 14819. In RDS-TMC, TTI messages are conveyed using type 8A
groups with the Radio Data System, itself specified in EN 62106.
The RDS-TMC standard was developed principally for the purposes of disseminating TTI data ‘free-to-air’,
using a public-service model.
However, in many countries, the adoption and continuance of TTI services requires a business model based
on commercial principals whereby the costs for the collection of the data and its dissemination may be
recovered by charging end-users or intermediaries to receive and use the data. In this model, a convenient
way that this may be achieved is to encrypt the data in some way, the key to decrypt the data being made
available on payment of a subscription or fee. In order to avoid a proliferation of different
...