Physical Key Responsibility Transfer with Local Gesture Authentication
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Solution Overview
Problem
The existing methods for transferring responsibility of a physical key from a transferer to a transferee are inconvenient due to user interface actions and lack of efficient authentication processes.
Innovation Solution
A method involving local communication between user devices of the transferer and transferee using Bluetooth, Bluetooth Low Energy, or Near-Field Communication to establish a peer-to-peer connection, verify the transferee's validity, and confirm the transfer of responsibility through accelerometer data or tactile input, allowing secure and convenient key transfer without network dependency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional automated key cabinet methods are used where transferer deposits key and transferee retrieves it, then key transfer tracking is maintained, but user convenience deteriorates due to multiple user interface actions required
Solution Approach 1:
The patent extracts the key from the automated key cabinet system and enables direct peer-to-peer transfer between user devices. The key responsibility transfer is decoupled from the physical key cabinet operations, allowing users to transfer key responsibility directly through their devices without depositing or retrieving physical keys from the cabinet, thereby reducing user interface actions while maintaining tracking capability
Solution Approach 2:
The patent introduces accelerometer data and local communication channels as intermediaries to facilitate key transfer authentication. Instead of requiring multiple manual UI actions, the system uses accelerometer sensors to detect the physical handover gesture and local communication to establish trust between devices, simplifying the user experience while maintaining security
2Ease of operation
If direct key handover between transferer and transferee is implemented, then user convenience improves, but authentication reliability deteriorates due to lack of verification processes
Solution Approach 1:
The patent implements feedback mechanisms where the transferee's device sends accelerometer data back to the transferer's device to confirm the handover gesture. This mutual verification through sensor data exchange ensures that both parties confirm the transfer, maintaining authentication reliability while keeping the process convenient
Solution Approach 2:
The patent performs preliminary authentication by establishing local communication channels and verifying device identities before the actual key transfer occurs. The system validates that the transferee is authorized to receive the key and that the transferer is authorized to transfer it, ensuring authentication reliability before the convenient direct transfer takes place
3Ease of operation
If accelerometer data correlation is used for authentication, then authentication convenience improves, but device complexity increases due to sensor integration requirements
Solution Approach 1:
The patent leverages the accelerometer sensor's multi-functionality by using it for both motion detection during normal device operation and for key transfer authentication. The same sensor hardware serves dual purposes, avoiding the need for dedicated authentication sensors and thereby limiting the increase in device complexity while maintaining authentication convenience
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables secure and convenient transfer of physical key responsibility with reduced latency and network independence, ensuring accurate tracking of key ownership without the need for direct deposit in automated key cabinets.
Implementation Method 1
receiving accelerometer data, from the transferee device, indicating a bump against an object and correlating the accelerometer data with corresponding accelerometer data from the user device of the transferer
Data Source
Figure 1~2
Figure 3~5
AI summary
It is provided method of transferring responsibility of a physical key (3) from a transferer (5a) to a transferee (5b). The method is performed by a transferee device (2b), being a user device (2b) of the transferee (5b). The method comprises: establishing (40) a local communication channel (4) with a user device (2a) of the transferer (5a); receiving (42), over the local communication channel (4), a request to register that the responsibility of the physical key (3) is transferred from the transferer (5a) to the transferee (5b); receiving (44) user input indicating that the responsibility of the physical key (3) is accepted by the transferee (5b); and transmitting (46) a confirmation of registration of transferring the responsibility of the physical key (3) to the transferee (5b).