Onboard Authentication Device Secure Key Registration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing onboard authentication systems face challenges in securely registering a new electronic key when the original key is lost, as they often require a malicious operation mode switch, which can invalidate the original owner's key information.
Innovation Solution
An onboard authentication device that includes a communication unit to receive key information, an existing electronic key determining unit to match received key information with registered key information, and an execution unit to perform registration or invalidation processes at different times based on the match, ensuring secure key management and maintenance of vehicle security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the operation mode is switched to registration mode to register a new electronic key, then the new key can be registered, but the original key information may be invalidated by malicious operations
Solution Approach 1:
The system performs preliminary verification by checking whether the original electronic key is present before allowing registration mode. The control unit confirms the presence of the original key through authentication signals, and only after this preliminary check passes does it permit the registration of a new key. This prevents malicious operations from invalidating the original key while still enabling legitimate key registration.
2Reliability
If the original key information is invalidated to prevent unauthorized access, then vehicle security is improved, but the original owner cannot register a new key
Solution Approach 1:
The system implements feedback by continuously monitoring the authentication status of the original electronic key during the key registration process. The control unit receives authentication signals from the original key, verifies them against stored credentials, and uses this feedback to determine whether to proceed with registration mode. This feedback mechanism ensures that only authorized users can register new keys while maintaining vehicle security.
3Reliability
If a predetermined operation is required using the registered electronic key for mode switching, then key security is improved, but the operation becomes more complex
Solution Approach 1:
The system applies self-service by requiring the original electronic key itself to perform the authentication function needed for mode switching. Instead of requiring separate verification steps or additional devices, the original key automatically provides the necessary authentication signals when brought near the vehicle. This self-service approach maintains high security while keeping the operation simple and user-friendly.
Data Source
AI summary
An onboard authentication device (60) includes: a communication unit (62) configured to receive key information; an existing electronic key determining unit (65C) configured to determine whether the key information received by the communication unit matches registered information; and an execution unit (65D, 65F) configured to execute a registration process of registering a second electronic key in the onboard authentication device or an invalidation process of invalidating the first electronic key registered in the onboard authentication device at a first time in a case that the existing electronic key determining unit determines the received key information matches the key information of the first electronic key and to execute the registration process or the invalidation process at a second time later than the first time in a case that the existing electronic key determining unit determines the received key information does not match the key information of the first electronic key.