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Car2X communication: Securing the last meter

A cost-effective approach for ensuring trust in Car2X applications using in-vehicle symmetric cryptography
: Schweppe, H.; Roudier, Y.; Weyl, B.; Apvrille, L.; Scheuermann, D.

Postprint urn:nbn:de:0011-n-1795354 (270 KByte PDF)
MD5 Fingerprint: a672227f197e34ef4c304f020cf1421d
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Erstellt am: 13.9.2011

Institute of Electrical and Electronics Engineers -IEEE-; IEEE Vehicular Technology Society -VTS-:
IEEE 74th Vehicular Technology Conference, VTC-Fall 2011. Proceedings : San Francisco, California, USA, 5 - 8 September 2011; co-located with the Fourth IEEE International Symposium on Wireless Vehicular Communications (IEEE WiVeC 2011)
New York, NY: IEEE, 2011
ISBN: 1-4244-8328-X
ISBN: 978-1-4244-8328-0
ISBN: 978-1-4244-8327-3
5 S.
Vehicular Technology Conference (VTC Fall) <74, 2011, San Francisco/Calif.>
International Symposium on Wireless Vehicular Communications (WIVEC) <4, 2011, San Fransicso/Calif.>
Konferenzbeitrag, Elektronische Publikation
Fraunhofer SIT ()
on-board protocol; automotive; security; bus systems; embedded communication; protocol

The effectiveness of Car2X communication strongly relies on trust in received data. Securing in-vehicle communication is an essential yet so far overlooked step to achieve this objective. We present an approach based on the use of symmetric key material protected with inexpensive hardware. We modeled the involved cryptographic and network protocols, showed their applicability to automotive bus systems and conclude about their soundness with analytical and simulation methods. A prototype realization in real vehicles is envisaged as part of an ongoing project.