Dual Wireless Interface Authentication for Device Provisioning
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Solution Overview
Problem
Existing wireless communication technologies, such as the Device Provisioning Protocol (DPP) scheme, face challenges in efficiently establishing a second wireless connection between a communication device and a second external device after an initial connection is established, particularly in scenarios where the communication device needs to switch between different wireless interfaces and states to manage authentication and connection processes.
Innovation Solution
A communication device is configured with a first and second wireless interface, along with a controller that manages the display unit to instruct the sending of a public key, shifts operation states for authentication, and uses connection information to establish a second wireless connection, enabling efficient switching between different wireless interfaces and states to facilitate communication with multiple external devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the communication device uses a single wireless interface for authentication and connection establishment, then the device complexity is reduced, but the adaptability to different wireless communication scenarios deteriorates
Solution Approach 1:
The wireless communication interface is segmented into two distinct interfaces: a first wireless interface dedicated to authentication requests and responses, and a second wireless interface for connection establishment and data transmission. This segmentation allows each interface to be optimized for its specific function, improving overall system adaptability while maintaining clear functional separation that prevents complexity escalation.
2Adaptability or versatility
If the communication device switches between different wireless interfaces during the connection process, then the adaptability to different communication scenarios is improved, but the processing load increases
Solution Approach 1:
The authentication process is completed in advance through the first wireless interface before the second wireless interface is activated for connection establishment. This preliminary authentication action ensures that when the device switches to the second interface, the authentication state is already established, reducing the processing load during the actual connection phase and improving overall efficiency.
3Speed
If the public key is sent automatically without user instruction, then the connection establishment speed is improved, but the security and user control deteriorates
Solution Approach 1:
The system implements a feedback mechanism where the controller monitors user input through the operation unit and adjusts the public key transmission accordingly. When the user provides an affirmative instruction, the controller triggers the first wireless interface to send the public key; otherwise, transmission is suppressed. This feedback loop maintains both security through user control and efficiency by enabling automatic transmission when authorized.
Data Source
AI summary
A communication device may display an instruction screen in a case where a first wireless connection is established between the communication device and a first external device; in a case where it is instructed that a target process is to be executed in a situation where the instruction screen is displayed, supply, to the first wireless interface, first instruction information; after the public key has been sent to the first external device, receive an authentication request from the first external device; send an authentication response to the first external device; receive connection information from the first external device; and in a case where the connection information is received from the first external device, establish, by using the connection information, the second wireless connection between the communication device and a second external device.