Tamper detection for vehicle controller
US6678606B2 · kind B2 · utility
7Cited by
19References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2001 |
| Grant date | Jan 13, 2004 |
| Priority date | — |
| Expiry date | Mar 12, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99936
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A system and method are disclosed for detecting tampering with the software, software parameters, and calibration data used by a vehicle controller. During authorized installation of controller memory images, a hash function is applied to selected regions of controller memory to obtain stored hash values. Then, periodically during operation of the vehicle, the hash function is applied to the then-current contents of the controller memory to obtain calculated hash values. If the stored hash values stored do not match the calculated hash values, a fault is logged for future retrieval by service personnel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.