Autonomous Vehicle Key Delivery for PIN Collision Authentication
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Solution Overview
Problem
In ride hailing services, especially with autonomous vehicles, the sharing nature of services leads to PIN collisions where multiple users have the same PIN, causing confusion and difficulty in user authentication, as existing systems rely solely on PINs for quick access without adequate verification methods.
Innovation Solution
A system that generates an encryption key for user authentication, using a server to select a vehicle capable of accepting this key, and incorporates biometric information to differentiate users in case of PIN collisions, ensuring secure and efficient access through a combination of PIN and biometric verification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a PIN is used for quick access to autonomous vehicles, then ease of operation is improved, but reliability deteriorates due to PIN collisions where multiple users have the same PIN
Solution Approach 1:
The authentication system is segmented into two independent components: PIN-based quick access and biometric verification. The PIN provides fast access while the biometric component (fingerprint, facial recognition, or iris scan) provides collision resolution. This segmentation allows the system to maintain quick access capability while eliminating authentication errors caused by PIN collisions.
Solution Approach 2:
Biometric verification acts as an intermediary layer between the PIN and the vehicle access system. When a PIN is entered, the biometric scanner serves as an intermediary to verify the user's identity before granting access, thereby resolving ambiguities caused by PIN collisions without compromising the speed of the overall authentication process.
2Reliability
If biometric verification is added to resolve PIN collisions, then reliability is improved, but device complexity increases
Solution Approach 1:
The mobile device serves multiple functions: it acts as both the interface for entering the PIN and the carrier for biometric data (fingerprint sensor, facial recognition camera, or iris scanner). By making the mobile device universal and multi-functional, the system avoids adding separate dedicated biometric hardware to the vehicle, thereby reducing overall system complexity while maintaining high reliability.
Solution Approach 2:
The system leverages the mobile device's existing biometric capabilities (fingerprint sensors, cameras for facial recognition) that users already possess and are familiar with. This self-service approach eliminates the need for the vehicle to provide its own biometric scanning infrastructure, reducing device complexity while achieving reliable authentication.
3Reliability
If encryption keys are generated and distributed to both vehicle and mobile device, then reliability is improved, but loss of information increases due to key management requirements
Solution Approach 1:
The encryption key is generated and distributed to both the vehicle and the mobile device in advance, before the authentication event occurs. This preliminary action ensures that both parties already possess the necessary cryptographic materials when needed, eliminating delays and reducing the risk of key management errors during the actual authentication process.
Solution Approach 2:
Instead of using a single centralized key, the system creates copies of the encryption key and distributes them to both the vehicle and the mobile device. This copying approach allows either party to independently verify authentication without requiring continuous communication with a central server, thereby reducing key management overhead while maintaining security and reliability.
Data Source
AI summary
A server includes one or more processors, programmed to responsive to receiving, from a mobile device of a user, a hailing request that identifies the user as requesting to schedule a ride, select a vehicle to respond to the hailing request based on a capacity to accept an encryption key of the vehicle, the hailing request including a user profile, generate an encryption key to authenticate the mobile device of the user with the vehicle, send the encryption key to both the vehicle and the mobile device to schedule the ride.