Attributing bus-off attacks based on error frames
US10958470B2 · kind B2 · utility
1Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2018 |
| Grant date | Mar 23, 2021 |
| Priority date | — |
| Expiry date | Jun 20, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/40215
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An error detector is configured to identify transmission errors and maintain a transmit error counter (TEC) value and corresponding network identifier for each of a plurality of electronic control units (ECUs) connected to a network bus. The error detector is configured to adjust the TEC values for the ECUs based on error frames and inform an intrusion detection system when an ECU changes error state. In this manner, the error detector is configured to help identify and attribute attacks by an impersonating node when a message is received containing the network identifier of a legitimate ECU that is in a Bus Off state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.