Ensuring Trust in Autonomous EFC Systems

In thick autonomous EFC systems, the amount to be paid to the toll charger is in effect determined by the on board equipment (OBE) in the vehicle. Since OBE is not under the control of the toll charger and since there are many ways to tamper with a system that is based on GNSS and GPRS, the question whether the toll charger can trust the toll declaration produced by the OBE is paramount. However, current international standards at this moment do not prescribe specific security architecture for EFC systems. The author presents a solution in terms of a Trusted Element (TE) inside the OBE, which not only stores keys used to sign data, but also stores valuable information like (aggregated values of) distances, durations and counters. The author argues that the TE can be trusted by toll chargers, and that, as a consequence, the OBE does not have to be simply trusted, but can be checked. The author discusses the requirements for such a TE and shows how a toll charger can use the TE to obtain trust in the toll declaration generated by the OBE.

• Corporate Authors:

  ITS Japan

  Tokyo,   Japan 

  ITS America

  1100 17th Street, NW, 12th Floor
  Washington, DC  United States  20036

  ERTICO

  326 Avenue Louis
  Brussels,   Belgium  B-1050
• Authors:
  • Bakker, David
• Conference:
  • 17th ITS World Congress
  • Location: Busan , Korea, South
  • Date: 2010-10-25 to 2010-10-29
• Publication Date: 2010

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; Photos;
• Pagination: 10p
• Monograph Title: 17th ITS World Congress, Busan, 2010: Proceedings

Subject/Index Terms

• TRT Terms: Automated toll collection; Reliability; Security; Trust (Psychology); Vehicle electronics
• Subject Areas: Finance; Highways; Operations and Traffic Management; I10: Economics and Administration; I73: Traffic Control;

Filing Info

• Accession Number: 01354643
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 13 2011 2:24PM