Wireless Device Pairing via Distance Measurement
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Solution Overview
Problem
Current security protocols for device pairing require manual verification and input, which can be cumbersome and vulnerable to accidental or malicious pairing attempts, especially when dealing with devices that have limited input capabilities.
Innovation Solution
A method where a pairing initiator device and a pairing responder device exchange communications to determine their distance, allowing them to wirelessly pair without further user input if within a threshold distance, leveraging cryptographic circuits and authentication systems to secure the pairing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual verification is required for device pairing, then security is improved, but ease of operation deteriorates
Solution Approach 1:
The system performs authentication and pairing verification automatically without requiring manual user input. The pairing initiator device autonomously verifies the pairing responder device's authenticity and completes pairing based on distance measurement, eliminating the need for users to manually confirm pairing codes or passwords.
Solution Approach 2:
The patent replaces manual mechanical verification (typing codes, pressing buttons) with automated cryptographic authentication and distance-based wireless communication. The system uses cryptographic circuits to verify device authenticity and wireless ranging to determine proximity, substituting physical manual operations with automated electronic processes.
2Reliability
If additional user input is required for pairing confirmation, then security is improved, but device complexity deteriorates
Solution Approach 1:
The pairing process is automated to perform verification and authentication without requiring additional user input. The system self-determines when pairing should occur based on distance measurements and cryptographic verification, eliminating the need for complex user interaction flows.
Solution Approach 2:
The system performs authentication verification and distance measurement automatically during the pairing process before final pairing occurs. By completing verification actions in advance based on pre-established cryptographic protocols and distance thresholds, the system avoids needing additional user input at the moment of pairing confirmation.
3Ease of operation
If devices can pair without distance verification, then ease of operation is improved, but security deteriorates
Solution Approach 1:
The system continuously measures distance between devices during the pairing process and uses this feedback to determine whether pairing should proceed. The distance measurement provides real-time information about device proximity, which the system uses to verify that pairing occurs only when devices are physically close, preventing unauthorized pairing from remote locations.
Solution Approach 2:
The patent replaces manual distance verification (physically bringing devices together) with automated wireless distance measurement using cryptographic communication. The system uses wireless signals to measure distance and automatically determines pairing eligibility based on whether the measured distance is below a threshold, substituting physical proximity checks with electronic measurement.
Data Source
AI summary
Techniques disclosed herein relate to the pairing of a pairing initiator device and a pairing responder device for communication. The pairing initiator device and the pairing responder device range with each other to determine the distance between the pairing initiator device and the pairing responder device. Based on the distance being below a threshold distance, the pairing initiator device and the pairing responder device wirelessly pair with each other without further input from the user.