Biometric Digital Vehicle Key Authentication for Lost-Phone Security
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Solution Overview
Problem
Current vehicle key systems, both physical and digital, face security issues as they can be easily lost or compromised, allowing unauthorized access to vehicles.
Innovation Solution
A vehicle control method that generates a digital vehicle key based on both biometric information and terminal device identifier information, requiring authentication of both the terminal device and user biometrics for vehicle operation, preventing unauthorized access even if the terminal device is lost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a digital vehicle key based on terminal device identifier is used, then vehicle access convenience is improved, but vehicle security deteriorates because unauthorized users can control the vehicle if they obtain the terminal device
Solution Approach 1:
The patent combines terminal device identifier authentication with user biometric information authentication to create a dual-factor verification system. The key generation process integrates both the terminal identifier and biometric data, ensuring that both factors are required for vehicle control, thus resolving the security vulnerability of single-factor authentication
Solution Approach 2:
The patent changes the authentication parameter from solely terminal identifier to a composite parameter including both terminal identifier and biometric information. This parameter transformation ensures that even if the terminal device is compromised, unauthorized access is prevented because the biometric parameter cannot be replicated
2Reliability
If biometric information is collected and processed, then vehicle security is improved through user verification, but the risk of biometric information leakage increases
Solution Approach 1:
The patent extracts and processes only the necessary biometric features required for authentication, rather than storing complete biometric data. The system derives authentication parameters from biometric information without retaining the original biometric templates, reducing the attack surface for potential leaks
Solution Approach 2:
The patent introduces an intermediary processing layer that transforms raw biometric information into authentication parameters through one-way functions. This intermediary process ensures that even if biometric data is collected, it cannot be reversed to obtain the original biometric information, mitigating leakage risks
Data Source
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AI summary
Embodiments of this application provide a vehicle control method, a communications apparatus, and a computer-readable storage medium. A first terminal device obtains first biometric information of a first user collected by a first collection module, generates a first key based on the first biometric information and identifier information of the first terminal device, and generates first verification information based on the first key. Further, the first terminal device sends the first verification information to an in-vehicle device. When successfully verifying the first verification information, the in-vehicle device controls a vehicle to start. If the first user loses the first terminal device, an unauthorized user that obtains the first terminal device cannot control the vehicle based on only the identifier information of the first terminal device, and the first terminal device further needs to collect biometric information of the unauthorized user. Because different users have different biometric information, a key generated by the first terminal device is different from the first key, and the in-vehicle device cannot control the vehicle to start. This improves vehicle security.