Multi-Factor Vehicle Access Security via Mobile Device Pairing
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Solution Overview
Problem
Current vehicle entry systems rely solely on proximity-based keyless remotes or smartphone login credentials, which are vulnerable to unauthorized access and require costly replacements if lost or stolen, lacking multi-factor authentication for enhanced security and convenience.
Innovation Solution
A multi-factor authentication system using multiple mobile devices (e.g., key fobs and smartphones) with proximity sensors and customizable user profiles, allowing pairing of replacement devices and applying security constraints to ensure secure vehicle access and operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a proximity-based keyless remote is used for vehicle access, then convenience is improved, but security deteriorates due to vulnerability to unauthorized access and loss/theft
Solution Approach 1:
The authentication system is segmented into multiple independent factors: possession of mobile device, proximity verification, and biometric authentication. Each factor provides a layer of security, so that compromise of one factor does not lead to complete system failure. This segmentation resolves the contradiction by maintaining convenience through mobile device proximity while adding security layers to prevent unauthorized access.
Solution Approach 2:
The system performs preliminary authentication actions before granting vehicle access. Biometric data is pre-registered and stored securely in the mobile device, and the system pre-verifies both proximity and biometric match before allowing ignition or operation. This preliminary multi-factor verification prevents unauthorized access while maintaining smooth operation for legitimate users.
2Adaptability or versatility
If a smartphone application with login credentials is used for remote control, then accessibility is improved, but security deteriorates due to easily compromised credentials
Solution Approach 1:
The system replaces traditional login credential mechanisms (passwords, PINs) with biometric authentication (fingerprint, facial recognition). This substitution eliminates the vulnerability of easily compromised text-based credentials while maintaining remote control accessibility through the smartphone application. The biometric factor provides cryptographic-grade security without sacrificing user convenience.
3Device complexity
If a single key fob is used as the sole user authentication factor, then simplicity is improved, but security deteriorates and replacement cost increases when lost or stolen
Solution Approach 1:
The mobile device serves multiple authentication functions simultaneously: it acts as a proximity key, stores pre-registered biometric templates, and provides a secure communication channel with the vehicle. This multi-functionality allows the system to maintain simplicity (using a device users already carry) while providing robust security and enabling free replacement of the mobile device itself rather than requiring expensive specialized key fobs.
4Reliability
If multi-factor authentication is implemented, then security is improved, but device complexity increases
Solution Approach 1:
The system merges multiple authentication factors into a unified authentication flow within the mobile device. The proximity sensor, biometric sensor, and communication modules all work together through a single authentication interface that the user interacts with naturally. This merging maintains security through multiple factors while presenting a simple, cohesive user experience that does not feel complex to the end user.
Data Source
Figure 1~2A
Figure 2B~3
Figure 4~5
AI summary
Systems and methods may provide for determining a first proximity status of a first mobile device with respect to a vehicle, and determining a second proximity status of a second mobile device with respect to the vehicle. Additionally, an accessibility of one or more functions of the vehicle may be configured based at least in part on the first proximity status and the second proximity status. In one example, a policy associated with one or more of the first mobile device and the second mobile device may be identified, wherein the accessibility is configured further based on the policy.