Identity-Based Key Exchange on In-Vehicle Networks: CAN-FD & FlexRay

Security has become critical for in-vehicle networks as they carry safety-critical data from various components, e.g., sensors or actuators, and current research proposals were quick to react with cryptographic protocols designed for in-vehicle buses, e.g., CAN (Controller Area Network). Obviously, the majority of existing proposals are built on cryptographic primitives that rely on a secret shared key. However, how to share such a secret key is less obvious due to numerous practical constraints. In this work, the authors explore in a comparative manner several approaches based on a group extension of the Diffie–Hellman key-exchange protocol and identity-based authenticated key agreements. The authors discuss approaches based on conventional signatures and identity-based signatures, garnering advantages from bilinear pairings that open road to several well-known cryptographic constructions: short signatures, the tripartite Diffie–Hellman key exchange and identity-based signatures or key exchanges. Pairing-based cryptographic primitives do not come computationally cheap, but they offer more flexibility that leads to constructive advantages. To further improve on performance, the authors also account for pairing-free identity-based key exchange protocols that do not require expensive pairing operations nor explicit signing of the key material. The authors present both computational results on automotive-grade controllers as well as bandwidth simulations with industry-standard tools, i.e., CANoe, on modern in-vehicle buses CAN-FD and FlexRay.

• Record URL:
  https://doi.org/10.3390/s19224919
• Record URL:
  https://www.mdpi.com/1424-8220/19/22/4919
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/14248220
• Supplemental Notes:
  • © 2019 Bogdan Groza and Pal-Stefan Murvay.
• Authors:
  • Groza, Bogdan
  • Murvay, Pal-Stefan
• Publication Date: 2019

Language

• English

Media Info

• Media Type: Web
• Features: Figures; References; Tables;
• Pagination: 4919
• Serial:
  • Sensors
  • Volume: 19
  • Issue Number: 22
  • Publisher: MDPI AG
  • ISSN: 1424-8220
  • Serial URL: http://www.mdpi.com/journal/sensors
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Computer network protocols; Computer security; Mobile computing; Networks
• Uncontrolled Terms: Cryptography
• Subject Areas: Data and Information Technology; Highways; Security and Emergencies; Vehicles and Equipment;

Filing Info

• Accession Number: 01726172
• Record Type: Publication
• Files: TRIS
• Created Date: Dec 20 2019 4:25PM