1、 ETSI TS 102 943 V1.1.1 (2012-06) Intelligent Transport Systems (ITS); Security; Confidentiality services Technical Specification ETSI ETSI TS 102 943 V1.1.1 (2012-06)2Reference DTS/ITS-0050017 Keywords ITS, interoperability, management, security ETSI 650 Route des Lucioles F-06921 Sophia Antipolis
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5、atus.asp If you find errors in the present document, please send your comment to one of the following services: http:/portal.etsi.org/chaircor/ETSI_support.asp Copyright Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction ext
6、end to reproduction in all media. European Telecommunications Standards Institute 2012. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM and LTE are Trade Marks of ETSI registered for the benefit of its Member
7、s and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TS 102 943 V1.1.1 (2012-06)3Contents Intellectual Property Rights 4g3Foreword . 4g31 Scope 5g32 References 5g32.1 Normative references . 5g32.2 Informative reference
8、s 5g33 Abbreviations . 5g34 Confidentiality requirements 6g34.1 Confidentiality for different application groups . 6g35 Confidentiality Services . 6g35.1 Application Layer . 6g35.2 Network Layer 6g35.2.1 IP . 6g35.2.2 Basic Transport Protocol 6g35.3 Link layer . 7g35.3.1 5,9 GHz / 802.11p link 7g35.
9、3.2 2G/3G/LTE . 7g35.3.3 Other link layer protocols . 7g3Annex A (informative): Bibliography . 8g3History 9g3ETSI ETSI TS 102 943 V1.1.1 (2012-06)4Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining t
10、o these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. L
11、atest updates are available on the ETSI Web server (http:/ipr.etsi.org). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI
12、Web server) which are, or may be, or may become, essential to the present document. Foreword This Technical Specification (TS) has been produced by ETSI Technical Committee Intelligent Transport System (ITS). ETSI ETSI TS 102 943 V1.1.1 (2012-06)51 Scope The present document specifies services to en
13、sure that that the confidentiality of information sent to and from an Intelligent Transport System (ITS) station can be maintained at a level that is acceptable to the users of the station. 2 References References are either specific (identified by date of publication and/or edition number or versio
14、n number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the reference document (including any amendments) applies. Referenced documents which are not found to be publicly available in the expected location might be found
15、at http:/docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee their long term validity. 2.1 Normative references The following referenced documents are necessary for the application of the present document. 1 ETSI
16、TS 133 102: “Universal Mobile Telecommunications System (UMTS); LTE; 3G security; Security architecture (3GPP TS 33.102)“. 2 ETSI TS 102 940: “Intelligent Transport Systems (ITS); Security; ITS communications security architecture and security management“. 3 ETSI TS 102 941: “Intelligent Transport S
17、ystems (ITS); Security; Trust and Privacy Management“. 4 IEEE P1609.2/D12 (January 2012): “IEEE Draft Standard for Wireless Access in Vehicular Environments - Security Services for Applications and Management Messages“. NOTE: Available at: http:/ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?reload=tru
18、e&punumber=6140528. 5 IETF RFC 2406, November 1998: “IP Encapsulating Security Payload (ESP)“. 2.2 Informative references The following referenced documents are not necessary for the application of the present document but they assist the user with regard to a particular subject area. Not applicable
19、. 3 Abbreviations For the purposes of the present document, the following abbreviations apply: 2G Second Generation mobile telephony 3G Third Generation mobile telephony ESP Encapsulating Security Payload G5A Frequency band ranging from 5,875 GHz to 5,905 GHz IP Internet Protocol ITS Intelligent Tra
20、nsport System ITS-S ITS Station LTE Long Term Evolution ETSI ETSI TS 102 943 V1.1.1 (2012-06)64 Confidentiality requirements 4.1 Confidentiality for different application groups TS 102 940 2 identifies ITS application groups and their confidentiality requirements, as summarized below: Cooperative aw
21、areness: No confidentiality services are needed. Static local hazard warning: No confidentiality services are needed. Dynamic local hazard warning: Depends on the details of the application. As no applications in this category have yet been fully specified, it is not possible to define confidentiali
22、ty requirements. Area hazard warning: No confidentiality services are needed. Advertised services, local high-speed unicast service, local multicast service, low-speed unicast service, distributed service: Confidentiality services are service-specific. Considerations for multiple applications: The u
23、se of multiple applications does not impose additional requirements for confidentiality. Signalling data: An ITS-S should not reveal signalling data to unauthorised parties. Confidentiality services provide one mechanism that may be used to conceal the signalling data. 5 Confidentiality Services 5.1
24、 Application Layer The present document does not mandate specific confidentiality services for use at the application layer. Applications may use any appropriate confidentiality service, for example the data encryption services provided by IEEE P1609.2 4. 5.2 Network Layer 5.2.1 IP Confidentiality s
25、ervices for IPv6 shall be provided using the Encapsulating Security Payload (ESP) protocol within IPSec 5. The key management services for IPv6 shall be as defined in TS 102 941 3. 5.2.2 Basic Transport Protocol No confidentiality services for the ITS Basic Transport Protocol are defined. ETSI ETSI
26、TS 102 943 V1.1.1 (2012-06)75.3 Link layer 5.3.1 5,9 GHz / 802.11p link No mechanisms suitable for link-layer confidentiality over an ITS G5A link have been defined. 5.3.2 2G/3G/LTE Confidentiality services for 2G/3G/LTE communications shall be provided by the mechanisms specified in TS 133 102 1. 5
27、.3.3 Other link layer protocols Confidentiality mechanisms for communications over a link layer other than the link layers specified above shall provide at least 128 bits of cryptographic security. ETSI ETSI TS 102 943 V1.1.1 (2012-06)8Annex A (informative): Bibliography IEEE 802.11p: “IEEE Standard
28、 for Information technology - Local and metropolitan area networks - Specific requirements - Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications Amendment 6: Wireless Access in Vehicular Environments“. ETSI ETSI TS 102 943 V1.1.1 (2012-06)9History Document history V1.1.1 June 2012 Publication
