Message chain-based controller area network (CAN) security system and method with hash function
US12395346B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2022 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Mar 5, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/84
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to a message chain-based Controller Area Network (CAN) security system and method with a hash function, which enables efficient detection of a malicious message through a message-based security scheme utilizing a hash function in the system. In an implementation, the method comprising steps of generating a hash value based on a Hash Reset Key and message ID received by the system, transmitting a CAN message including the hash value, allowing message reception and executing a command when it is determined that the hash value included in the CAN message is valid, and transmitting an intruder detection warning when it is determined that the hash value included in the CAN message is not valid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.