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1、 Reference number ISO 16844-5:2004(E) ISO 2004 INTERNATIONAL STANDARD ISO 16844-5 First edition 2004-08-01 Road vehicles Tachograph systems Part 5: Secured CAN interface Vhicules routiers Systmes tachygraphes Partie 5: Interface CAN sauvegarde ISO 16844-5:2004(E) PDF disclaimer This PDF file may con
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6、 office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2004 All rights reserved -,-,- ISO 16844-5:2004(E) ISO 2004 All rights reserved iii Contents Page Forewordiv Introduction v 1 Scope1 2 Normat
7、ive references .1 3 Terms and definitions.1 4 Abbreviated terms.2 5 Physical layer 2 6 Data link layer2 7 Network layer.2 8 Application layer .2 9 Security sub-layer.2 Bibliography .5 -,-,- ISO 16844-5:2004(E) iv ISO 2004 All rights reserved Foreword ISO (the International Organization for Standardi
8、zation) 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 b
9、e 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 Standa
10、rds 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 Inter
11、national 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 16844-5
12、 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 3, Electrical and electronic equipment. ISO 16844 consists of the following parts, under the general title Road vehicles Tachograph systems: Part 1: Electrical connectors Part 2: Recording unit, electrical interface Part
13、3: Motion sensor interface Part 4: CAN interface Part 5: Secured CAN interface Part 6: Diagnostics Part 7: Parameters -,-,- ISO 16844-5:2004(E) ISO 2004 All rights reserved v Introduction ISO 16844 supports and facilitates the communication between electronic units and a tachograph; the tachograph b
14、eing based upon Council Regulations (EEC) No. 3820/85 1 and (EEC) No. 3821/85 2 and their amendments Council Regulation (EEC) No. 2135/98 3 and Commission Regulation (EC) No. 1360/2002 (see Clause 2). Its purpose is to ensure the compatibility of tachographs from various tachograph manufacturers. Th
15、e basis of the digital tachograph concept is a recording unit (RU) that stores data related to the activities of the drivers of a vehicle on which it is installed. When the RU is in normal operational status, the data stored in its memory are made accessible to various entities such as drivers, auth
16、orities, workshops and transport companies in a variety of ways: they may be displayed on a screen, printed by a printing device or downloaded to an external device. Access to stored data is controlled by a smart card inserted in the tachograph. In order to prevent manipulation of the tachograph sys
17、tem, the speed signal sender (motion sensor) is provided with an encrypted data link. A typical tachograph system is shown in Figure 1. Key 1 positive supply 2 battery minus 3 speed signal, real time 4 data signal in/out Figure 1 Typical tachograph system -,-,- -,-,- INTERNATIONAL STANDARD ISO 16844
18、-5:2004(E) ISO 2004 All rights reserved 1 Road vehicles Tachograph systems Part 5: Secured CAN interface 1 Scope This part of ISO 16844 specifies the secured interchange of digital information between a road vehicles tachograph system and vehicle units, and within the tachograph system itself. This
19、type of interchange will be used for CAN communication or diagnostic services on CAN (controller area network), where there is need to protect interchanged parameters against fraud. 2 Normative references The following referenced documents are indispensable for the application of this document. For
20、dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 14229-1, Road vehicles Unified diagnostic services (UDS) Part 1: Specification and requirements 1) ISO 15764, Road vehicles Extended data li
21、nk security ISO 15765-2, Road vehicles Diagnostics on Controller Area Networks (CAN) Part 2: Network layer services ISO 16844-4, Road vehicles Tachograph systems Part 4: CAN interface 1) ISO 16844-6:2004, Road vehicles Tachograph systems Part 6: Diagnostics ISO 16844-7, Road vehicles Tachograph syst
22、ems Part 7: Parameters Commission Regulation (EC) No. 1360/2002 of 13 June 2002 adapting for the seventh time to technical progress Council Regulation (EEC) No. 3821/85 on recording equipment in road transport 3 Terms and definitions For the purposes of this document, the terms and definitions given
23、 in ISO 15764 and the following apply. 3.1 recording unit part of the tachograph system that acquires and stores data concerning the vehicle and its driver(s) and their activities 1) To be published. -,-,- ISO 16844-5:2004(E) 2 ISO 2004 All rights reserved 4 Abbreviated terms EC European Commission
24、EEC European Economic Community hex hexadecimal number ID identifier PDU protocol data unit PGN parameter group number RU recording unit VIN vehicle identification number VU vehicle unit 5 Physical layer The physical layer shall be implemented according to ISO 16844-4. 6 Data link layer The data lin
25、k layer shall be implemented according to ISO 16844-4. 7 Network layer The network layer shall be implemented according to ISO 15765-2, together with the additional requirements given in ISO 16844-6:2004, 7.1. 8 Application layer The SecuredDataTransmission (hex 84) service according to ISO 14229-1
26、shall be used. 9 Security sub-layer 9.1 General The security sub-layer is inserted between the application layer and the application, as described in ISO 14229-1. It shall be implemented according to ISO 15764, based on the settings according to ISO 14229-1, giving additional tachograph requirements
27、. The RU shall act as the server according to ISO 15764. -,-,- ISO 16844-5:2004(E) ISO 2004 All rights reserved 3 9.2 Security sub-layer service request parameters 9.2.1 Server identifier The server identifier shall be the unique identifier of the RU. If the identifier is less than 8 bytes, it will
28、be padded with hex FF. For a tachograph designed in accordance with Council Regulations (EEC) No. 3820/85 1 and No. 3821/85 2, last amended by Council Regulation (EC) 1360/2002, the identifier shall be the 8 byte key identifier of the VU in accordance with Council Regulation (EC) 1360/2002, Annex 1B
29、 Appendix 11, Section 3.3.1. 9.2.2 Secured mode service type The RU will only accept the secured mode service types according to Table 1. In all other cases it will send a negative response with error code hex 31 (requestOutOfRange). Table 1 Supported secured mode service types securedModeServiceTyp
30、e value Service type 1 Diagnostic service according to ISO 14229-1 3 Tachograph service according to ISO 16844-4 and ISO 16844-7 In case of securedModeServiceType 1 the settings of ISO 16844-6 apply for the diagnostic service to be executed in the secured mode. In case of securedModeServiceType 3 th
31、e security sub-layer of the RU shall accept a request PGN also for information that is broadcast periodically (see ISO 16844-4), and on reception of a request PGN shall respond without verifying the certificate of the client (see ISO 15764). NOTE The client will send the request in the secured mode
32、to get an authenticated response from the RU. As the messages are available for any client in non-secured mode as well, neither authentication of the client towards the RU nor protection against eavesdropping is needed. 9.2.3 Secured mode service identifier In the case of securedModeServiceType 1, t
33、he securedModeServiceIdentifier shall be the 1 byte service identifier (see ISO 14229-1) for the service request of the diagnostic service to be executed in the secured mode. In the case of securedModeServiceType 3, the securedModeServiceIdentifier shall be the PDU format field of the PGN (see ISO 1
34、6844-4) of the message to be sent in the secured mode. The RU will only accept values of the PDU format field between 0 and 239 (PDU 1 format). In all other cases, it will send a negative response with error code hex 31 (requestOutOfRange). NOTE It is not possible to send the Electronic Engine Contr
35、oller #1 message to the RU in the secured mode. 9.2.4 Security profile The RU shall only accept security profiles containing the value 0 in the bit number 13 (meaning that the response has to include no user ID). If this bit is set to 1, the RU shall send a negative response with error code hex 40 (
36、auditTrailInformationNotAvailable, see ISO 15764). -,-,- ISO 16844-5:2004(E) 4 ISO 2004 All rights reserved 9.2.5 Audit trail information If the audit trail information of the service request contains the VIN, the RU shall verify it and send a negative response with error code hex 31 (requestOutOfRa
37、nge), in case it doesnt fit with the VIN stored in the RU. No other audit trail information contained in the service request shall be verified by the RU. 9.3 Security sub-layer service response parameters In the case of securedModeServiceType 1 in the corresponding service indication, the securedMod
38、eServiceIdentifier shall be the 1-byte service identifier (see ISO 14229-1) for the service response of the diagnostic service to be executed in the secured mode. In the case of securedModeServiceType 3 in the corresponding service indication, the securedModeServiceIdentifier shall be the PDU specif
39、ic field of the PGN (see ISO 16844-4) of the message to be sent in the secured mode. If no specific response message was requested, the RU will send the acknowledge message in response to the request message. -,-,- ISO 16844-5:2004(E) ISO 2004 All rights reserved 5 Bibliography 1 Council Regulation
40、(EEC) No. 3820/85 of 20 December 1985 on the harmonization of certain social legislation relating to road transport 2 Council Regulation (EEC) No. 3821/85 of 20 December 1985 on recording equipment in road transport 3 Council Regulation (EEC) No. 2135/98 of 24 September 1998 amending Regulation (EEC) No. 3821/85 on recording equipment in road transport and Directive 88/599/EEC concerning the application of Council Regulations (EEC) No. 3820/85 and (EEC) No. 3821/85 -,-,- ISO 16844-5:2004(E) ICS 43.040.10 Price based on 5 pages ISO 2004 All rights reserved -,-,-