LEAP: A Lightweight Encryption and Authentication Protocol for In-Vehicle Communications
Abstract
The Controller Area Network (CAN) is considered as the de-facto standard for the in-vehicle communications due to its real-time performance and high reliability. Unfortunately, the lack of security protection on the CAN bus gives attackers the opportunity to remotely compromise a vehicle. In this paper, we propose a Lightweight Encryption and Authentication Protocol (LEAP) with low cost and high efficiency to address the security issue of the CAN bus. LEAP exploits the security-enhanced stream cipher primitive to provide encryption and authentication for the CAN messages. Compared with the state-of-the-art Message Authentication Code (MAC) based approaches, LEAP requires less memory, is 8X faster, and thwarts the most recently proposed attacks.
- Publication:
-
arXiv e-prints
- Pub Date:
- September 2019
- DOI:
- 10.48550/arXiv.1909.10380
- arXiv:
- arXiv:1909.10380
- Bibcode:
- 2019arXiv190910380L
- Keywords:
-
- Computer Science - Cryptography and Security
- E-Print:
- 7 pages, 9 figures, 3 tables