Robustness Testing of a Watermarking CAN Transceiver
- Delivery
- Provide download link
- Format
- Price
- Non-members (tax incl.):¥6,600 Members (tax incl.):¥5,280
- Paper/Info type
- SAE Paper
No.2022-01-0106
- Pages
- 1-7(Total 7 p)
- Date of publication
- Mar 2022
- Publisher
- SAE International
- Language
- English
- Event
- WCX SAE World Congress Experience 2022
Detailed Information
Author(E) | 1) Alan J. Michaels, 2) Michael Fletcher, 3) Chris Henshaw, 4) Venkata Sai Srikar Palukuru, 5) John Moore |
---|---|
Affiliation(E) | 1) Virginia Tech National Security Institute, 2) Virginia Tech National Security Institute, 3) Virginia Tech National Security Institute, 4) Ford Motor Company, 5) Ford Motor Company |
Abstract(E) | To help address the issue of message authentication on the Controller Area Network (CAN) bus, researchers at Virginia Tech and Ford Motor Company have developed a proof-of-concept time-evolving watermark-based authentication mechanism that offers robust, cryptographically controlled confirmation of a CAN message's authenticity. This watermark is injected as a common-mode signal on both CAN-HI and CAN-LO bus voltages and has been proven using a low-cost software-defined radio (SDR) testbed. This paper extends prior analysis on the design and proof-of-concept to consider robustness testing over the range of voltages, both steady state drifts and transients, as are commonly witnessed within a vehicle. Overall performance results, along with a dynamic watermark amplitude control, validate the concept as being a practical near-term approach at improving authentication confidence of messages on the CAN bus. |