Vehicular Digital Key Owner Registration With Verified Start Signal
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Solution Overview
Problem
Existing vehicular digital key systems lack a secure method for registering owner keys, as they do not differentiate between owner and guest key registration processes, potentially compromising security.
Innovation Solution
A vehicular digital key system that includes a mode for owner registration, where the owner key is registered only upon input of a specific registration signal, utilizing a service key generated by a server and stored in a vehicle-side memory, enhancing security by ensuring the owner key is not registered unless the owner is present.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the system accepts key registration from any device without verification, then the ease of operation is improved, but the security is compromised
Solution Approach 1:
The patent introduces a dedicated device as an intermediary between the server and the vehicular device for owner key registration. This dedicated device verifies the owner's identity and authorization before transmitting the registration start signal, thereby mediating the security risk while maintaining operational convenience.
Solution Approach 2:
The system performs preliminary verification of the owner's identity and authorization through the dedicated device before allowing key registration. The registration start signal is only transmitted after confirming the registrant's authority, preventing unauthorized registration while maintaining a smooth user experience.
2Ease of operation
If the system always operates in owner registration mode, then the ease of operation is improved, but the security risk of unauthorized registration increases
Solution Approach 1:
The vehicular device dynamically switches between owner registration prohibition mode and owner registration mode based on received signals. By default, it operates in prohibition mode to prevent unauthorized registration, and temporarily switches to registration mode only when a verified registration start signal is received, thus balancing security and operational availability.
3Reliability
If the system differentiates between owner and guest registration processes, then the security is improved, but the device complexity increases
Solution Approach 1:
The patent segments the key registration process into two distinct pathways: owner key registration through the dedicated device with verification, and guest key registration through direct mobile terminal communication. This segmentation allows differentiated security measures for different user types without requiring complete system redesign.
Solution Approach 2:
The system applies different security qualities to different registration scenarios: owner registration receives enhanced verification through the dedicated device, while guest registration uses a simpler process. This local differentiation of security measures improves overall security without uniformly increasing complexity across all functions.
Data Source
AI summary
A vehicular device includes, as an operation mode, an owner registration mode that accepts registration of owner information and an owner registration prohibition mode that does not accept registration of owner information. The vehicular device normally operates in the owner registration prohibition mode. The vehicle device switches to the owner registration mode only when a registration start signal indicating that the registrant is the owner is input from the server or the dedicated device.