System and method to detect malicious use of diagnostic state changes in a vehicle
US12148253B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2021 |
| Grant date | Nov 19, 2024 |
| Priority date | — |
| Expiry date | Dec 7, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2463/121
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A computer-implement method includes receiving one or more messages at a secure processor from a first node on a communication bus, monitoring the one or more messages from the first node, wherein the one or more messages include a request to a change a state of the one or more nodes, in response to the one or more messages including the request to the change of state, initiating a timer to initiate monitoring of the communication bus for a second sequence of messages, and in response to the second sequence of messages not being found within a database including information associated with the one or more latency values associated with the change of state, outputting a signal indicating an alert.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.