Vehicle ECU Hash Validation for Authentic Hardware Replacement
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Solution Overview
Problem
The reliability of electronic control units in autonomous vehicles is compromised by the installation of unoriginal or improperly installed hardware, which can lead to vehicle malfunction and safety risks, necessitating a method to validate the authenticity and proper installation of these components.
Innovation Solution
A cryptographic hash validation system that generates a run-time cryptographic hash based on the identification number of the electronic control unit and compares it with a stored cryptographic hash, ensuring the authenticity and proper installation of the hardware by using secure memory arrays and cryptographic functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If hardware replacement is allowed in autonomous vehicles, then ease of repair and maintenance is improved, but reliability deteriorates due to installation of unoriginal or improperly installed hardware
Solution Approach 1:
The system performs preliminary validation by generating a cryptographic hash of the ECU's identification number and comparing it against a pre-stored reference hash value before allowing the ECU to operate. This preliminary check ensures that only authorized, original hardware can be installed and replaced, preventing unoriginal or improperly installed hardware from compromising vehicle safety while still allowing legitimate repairs and maintenance activities.
2Reliability
If cryptographic hash validation is implemented, then reliability is improved by preventing unoriginal hardware installation, but device complexity increases
Solution Approach 1:
The system creates a cryptographic copy (hash) of the ECU's identification number, which is a simplified representation that can be easily stored and compared. Instead of storing and verifying the entire original identification data, the system uses this cryptographic copy to validate authenticity. This approach maintains high reliability in detecting unoriginal hardware while reducing the complexity of data storage and comparison operations.
3Measurement precision
If run-time cryptographic validation is performed, then measurement precision is improved in detecting counterfeit components, but use of energy increases
Solution Approach 1:
The system extracts only the essential identification number from the ECU and generates a cryptographic hash from this extracted data for validation purposes. By taking out only the necessary identification information rather than processing entire datasets or performing multiple complex validation operations, the system achieves high authentication accuracy in detecting counterfeit components while minimizing the energy required for the validation process.
Data Source
AI summary
The present disclosure includes apparatuses, methods, and systems for validating an electronic control unit of a vehicle. An embodiment includes a memory, and circuitry configured to generate a run-time cryptographic hash based on an identification (ID) number of an electronic control unit of a vehicle and compare the run-time cryptographic hash with a cryptographic hash stored in a portion of the memory.