Digital Access Key Generation for Shared Vehicle Authentication
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Solution Overview
Problem
The management of vehicle keys in shared vehicle systems is inconvenient and insecure, particularly when multiple users need to access a single vehicle, as existing systems face limitations in key reproduction and authentication processes, leading to difficulties in car rental and shared usage scenarios.
Innovation Solution
A car management system that uses tokens generated by mobile devices to authorize access to a vehicle, with a third terminal providing an access key after combining first and second tokens under a predetermined rule, enhancing security through double authentication and eliminating the need for physical keys.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple physical keys are provided for shared vehicle usage, then ease of operation is improved, but device complexity and security management become worsened
Solution Approach 1:
The patent replaces physical keys with digital copies in the form of access keys stored on mobile terminals. Multiple users can have digital copies of the access key without requiring physical key duplication, which is subject to regulatory constraints. The access key is generated through token combination and can be distributed to multiple terminals, eliminating the need for physical key management while maintaining security.
Solution Approach 2:
The patent substitutes the mechanical key system with an electronic authentication system. Instead of inserting physical keys into mechanical lockholes, the system uses mobile terminals with digital access keys that communicate electronically with the vehicle's control unit. This replacement eliminates wear and tear on mechanical components and enables more flexible key management.
2Ease of operation
If physical key reproduction is allowed for multiple users, then ease of operation is improved, but security level deteriorates due to complicated authentication processes
Solution Approach 1:
The access key is segmented into multiple components: a first token generated by the user's mobile terminal and a second token generated by the manager's mobile terminal. Both tokens are required and must be combined according to a predetermined rule to generate the final access key. This segmentation ensures that no single user can obtain the access key alone, enhancing security while allowing convenient distribution to multiple authorized users.
Solution Approach 2:
The patent introduces an intermediary authentication process where the vehicle's control unit acts as a mediator to verify the combination of tokens. The control unit receives both the first token from the user terminal and the second token from the manager terminal, validates them against predetermined rules, and only then generates the access key. This intermediary verification layer enhances security without significantly complicating the user experience.
3Reliability
If access key generation requires token combination from multiple terminals, then security level is improved, but ease of operation deteriorates
Solution Approach 1:
The manager terminal generates the second token in advance and stores it securely. When the user needs access, they generate the first token using their own terminal. The combination process is then streamlined because both tokens are already prepared - the user's terminal automatically combines the first token with the stored second token to generate the access key. This preliminary preparation reduces the operational burden during actual access requests.
Solution Approach 2:
The user's mobile terminal automatically performs the token combination process without requiring manual intervention. The terminal retrieves the first token, combines it with the second token according to predetermined rules, and generates the access key autonomously. This self-service automation eliminates the need for users to manually coordinate with managers or perform complex authentication steps, maintaining ease of operation despite the enhanced security protocol.
Data Source
AI summary
A car management system includes, for example, a second terminal generating first and second tokens in response to a request from a first terminal to use a vehicle, and sending the first token to the first terminal; and a third terminal authorizing the first terminal to use the vehicle by generating an access key that provides authority to use the vehicle using the first token and the second token in response to a request from the first terminal for the access key, and providing the generated access key to the first terminal.