Proximity Token Access With Multi-Threshold Deactivation
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Solution Overview
Problem
Existing token systems deactivate features when outside the wireless communication range of a user's mobile device, leading to loss of access and increased security risks when the token is inadvertently out of range or shared with others.
Innovation Solution
Implementing multiple threshold times and encryption keys to manage token deactivation and reactivation, allowing continued use by authorized users even when out of range, with secondary keys for limited access and secure communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the token is deactivated immediately when outside the wireless communication range, then security is improved, but accessibility and usability deteriorate
Solution Approach 1:
The system performs preliminary monitoring of token location and prepares deactivation only after confirming prolonged absence from the authorized range. By waiting for the token to be detected as out-of-range for a predetermined period before deactivating, the system prevents premature deactivation that would occur during temporary separations, thus maintaining accessibility while still providing security.
2Ease of operation
If the token remains active when outside the wireless communication range, then accessibility is improved, but security deteriorates
Solution Approach 1:
The system dynamically adjusts the token's activation state based on real-time location monitoring and threshold-based timing. The token transitions from active to deactivated state only after being detected out-of-range for a predetermined period, creating a dynamic response that balances security and accessibility based on actual usage patterns and temporal context.
3Ease of operation
If the token can be reactivated by any user, then ease of operation is improved, but security deteriorates
Solution Approach 1:
The system implements a feedback mechanism where only the original authorized user can reactivate the token after it has been deactivated due to prolonged out-of-range conditions. This feedback control ensures that reactivation rights remain exclusive to the legitimate owner, preventing unauthorized users from exploiting the reactivation capability while maintaining user-friendly operation.
4Device complexity
If the system uses single threshold time for deactivation, then device complexity is reduced, but reliability deteriorates
Solution Approach 1:
The deactivation threshold is segmented into multiple time-based stages: a first threshold time for generating a location-based notification and a second, longer threshold time for actual deactivation. This segmentation allows the system to provide progressive feedback to the user while maintaining simpler implementation logic, improving both reliability through staged response and reducing complexity compared to multiple independent thresholds.
Data Source
AI summary
In some embodiments, proximity-based deactivation or activation related to a token (or one or more features related to the token) may be facilitated. As one example, methods and systems are described herein for deactivating use related to a token (e.g., outside a range of a first mobile device communicating with the token via a first link key) based on multiple “outside-of-range” threshold times. As another example, methods and systems are described herein for reactivating (or keeping active) the use related to the token by obtaining a valid link key and communicating with the token via a mobile device (e.g., a second mobile device of another user) within a range of the token.