Certificate-Based Wireless Pairing for Secure Device Discovery
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Solution Overview
Problem
Short-range wireless communication methods require manual user configuration, making it difficult for inexperienced users to pair devices and identify the correct external device for content sharing.
Innovation Solution
An electronic device uses certificate-based authentication to automatically establish a secure communication channel with another device by broadcasting and receiving certificate data, eliminating the need for manual user configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual user configuration is used for short-range wireless communication pairing, then device connectivity can be established, but the ease of operation deteriorates for inexperienced users
Solution Approach 1:
The system performs automatic device pairing through self-service mechanisms where devices autonomously discover each other via advertisement packets, authenticate using embedded certificates, and establish secure communication channels without requiring user intervention in configuration steps
Solution Approach 2:
Certificate data is pre-configured and embedded in devices during manufacturing or initial setup. The electronic device proactively broadcasts advertisement packets containing its certificate data before any communication is needed, so that when another device approaches, authentication can immediately occur without manual configuration
2Ease of operation
If manual device specification is required for content sharing, then accurate device identification is achieved, but the ease of operation deteriorates
Solution Approach 1:
The system provides immediate feedback through advertisement packets that contain certificate data allowing the electronic device to automatically identify and authenticate the external device. The external device responds with its own certificate data, enabling mutual authentication and automatic device specification without user intervention
Solution Approach 2:
Certificate data acts as an intermediary that enables automatic device identification and authentication. The advertisement packet serves as a mediator carrying certificate information between devices, allowing the system to automatically determine which external device to use for content sharing based on certificate matching
Data Source
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AI summary
An electronic device and method are disclosed herein. The electronic device includes memory storing a certificate list including first certificate data of the electronic device, and second certificate data of an external electronic device, a short-range wireless communication circuit, and a processor. The processor implements the method, including: detecting a trigger event for requesting establishment a communication connection with a device local to the electronic device, controlling the short-range wireless communication circuit to broadcast an advertisement packet generated based on the first certificate data, in response to detecting the trigger event, receiving a response packet from the external electronic device and acquire a third certificate data from the received response packet, authenticating the external electronic device based on the second certificate data and the third certificate data, and establishing a secure communication channel with the external electronic device if the external electronic device is authenticated.