Vehicle Digital Key Revocation Based on Use Status
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Solution Overview
Problem
Existing digital key revocation systems often invalidate keys at inopportune times, leaving users without access when they need it, such as when a predefined expiration time lapses unexpectedly or at inconvenient moments.
Innovation Solution
The proposed method revokes digital keys based on their use status, considering current and future usage, use history, and vehicle status to ensure the key is only invalidated when no longer needed, using information from user devices and vehicles to assess the appropriateness of revocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If digital keys are invalidated based on predefined expiration time, then security and key management control are improved, but user convenience deteriorates when keys expire at inopportune times
Solution Approach 1:
The patent applies dynamics by transitioning from a static expiration time mechanism to a dynamic revocation system that continuously monitors key usage status. The system adapts the key validity state in real-time based on whether the key is currently active or expected to be used, allowing the revocation decision to change dynamically rather than following a fixed timeline.
Solution Approach 2:
The patent implements feedback by establishing a monitoring mechanism that tracks key usage status and feeds this information back to the revocation decision process. The system receives feedback about whether the key is currently active or expected to be used, and uses this feedback to determine whether revocation should proceed, creating a closed-loop control system.
2Speed
If digital keys are revoked immediately when expiration time lapses or revocation is requested, then security response time is improved, but user access reliability deteriorates when keys are needed
Solution Approach 1:
The patent applies preliminary anti-action by implementing a protective mechanism that prevents premature revocation before it occurs. The system proactively checks the usage status before executing revocation, and if the key is currently active or expected to be used, it blocks the revocation action. This preliminary check prevents the harmful effect of revoking a needed key.
Solution Approach 2:
The patent implements preliminary action by performing usage status verification before the actual revocation takes place. The system checks whether the key is currently active or expected to be used as a preliminary step, and only proceeds with revocation if the check confirms it is safe to do so, ensuring that necessary keys remain valid.
3Ease of operation
If digital key revocation monitoring is implemented, then user convenience is improved by preventing premature invalidation, but system complexity increases
Solution Approach 1:
The patent applies universality by designing a monitoring system that serves multiple functions: it tracks key usage status, determines expected future usage, informs revocation decisions, and provides audit capabilities. This multi-functional approach consolidates what could be separate systems into a unified solution, reducing overall complexity.
Solution Approach 2:
The patent implements self-service by enabling the system to automatically monitor its own key usage status and make intelligent revocation decisions without requiring external intervention. The monitoring mechanism autonomously tracks whether keys are active or expected to be used and automatically prevents revocation when appropriate, reducing the need for manual management.
Data Source
AI summary
A method and system for revocation of a digital key for locking/unlocking a vehicle is disclosed herein. In at least one embodiment, the method includes obtaining information on a use status of the digital key, and revoking the digital key based on the information on the use status of the digital key. In at least one embodiment, the system comprises one or more interfaces for communication, and a data processing circuit. The data processing circuit is configured to control the one or more interfaces, obtain information on a use status of the digital key, and revoke the digital key based on the information on the use status of the digital key.