Vehicle Digital Key Revocation Using Adaptive Use Status Checks
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Solution Overview
Problem
Digital keys used for vehicle access can be revoked at inopportune times, such as when the key is still needed, due to predefined expiration times or user requests, leading to undesirable situations where the key is invalidated when it should still be in use.
Innovation Solution
A method for revoking digital keys based on their use status, ensuring the key is not invalidated if it is currently in use or expected to be used, by considering information on the key's use history and vehicle status to determine the appropriateness of revocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If digital keys are revoked based on predefined expiration times, then security is improved by ensuring keys are invalidated after use, but usability deteriorates when keys are revoked at inopportune times (e.g., when still needed for vehicle access)
Solution Approach 1:
The patent applies dynamics by making the revocation mechanism adaptive rather than static. Instead of using fixed expiration times, the system dynamically adjusts key validity based on real-time use status monitoring. The key remains active as long as it is currently in use or expected to be used, and is only revoked when the vehicle status indicates it is no longer needed, thereby resolving the contradiction between security and usability.
2Reliability
If digital keys are revoked based on user requests, then security is improved by allowing immediate invalidation, but usability deteriorates when users accidentally request revocation or request it at inappropriate times
Solution Approach 1:
The patent applies preliminary action by implementing a confirmation step before revocation. When a user requests key revocation, the system first checks the current use status and determines whether revocation is appropriate before executing it. This preliminary check prevents accidental or inopportune revocation while still allowing security-driven revocation when genuinely needed.
3Device complexity
If digital keys have fixed expiration times, then key management is simplified, but the system cannot adapt to changing usage scenarios (e.g., extended trips, unexpected delays)
Solution Approach 1:
The patent transforms the static key management system into a dynamic one by continuously monitoring vehicle use status. The key expiration is no longer fixed but adapts based on real-time conditions such as whether the vehicle is currently in use, parked, or expected to be used soon. This dynamic approach maintains simplicity while significantly improving adaptability to changing usage scenarios.
Data Source
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AI summary
Embodiments relate to a vehicle, an apparatus, a computer program, and methods for revocation of a digital key. Embodiments particularly provide a method (100) which comprises obtaining (110) information on a use status of the digital key and revoking (120) the digital key based on the information on the use status of the digital key.