QR Code Access for WLAN Security and Ease of Operation
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Solution Overview
Problem
Current methods for accessing wireless local area network (WLAN) access points are operationally complex and provide low security performance, especially for users without keyboards and when dealing with long passwords or SSIDs, and are vulnerable to unauthorized access.
Innovation Solution
A method and device that utilize two-dimensional codes for accessing access points, where the user terminal acquires a two-dimensional code either by scanning a screen or parsing an image, obtaining access password and identifier information, and uses this information to connect securely to the access point, eliminating the need for manual password entry and enhancing security through encryption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual password entry is required for AP access, then security authentication is achieved, but operation complexity increases and user convenience deteriorates
Solution Approach 1:
The patent replaces the mechanical keyboard input system with an optical recognition system. The user terminal captures an image of the password through a camera or image sensor, and the system automatically recognizes and processes the password without requiring manual typing. This substitution eliminates the need for physical keyboard interaction while maintaining security authentication, thereby improving ease of operation without compromising reliability.
2Reliability
If long passwords are used for security, then security strength is improved, but entry error rate increases and access efficiency decreases
Solution Approach 1:
The patent uses visual copying of the password through image capture. Instead of requiring users to manually type long passwords, the system captures an image containing the password and automatically extracts it. This copying mechanism allows long, complex passwords to be used for security while eliminating manual entry errors and improving access efficiency, as the password is transferred optically rather than through sequential keystrokes.
3Reliability
If WPS button synchronization method is used for connection, then connection establishment is achieved, but operational complexity increases and usability deteriorates
Solution Approach 1:
The patent implements self-service connection establishment through automated image-based password extraction. The user terminal automatically captures the password image, extracts the password information, and completes the connection process without requiring manual button pressing or synchronization operations. The system performs the connection establishment autonomously based on the captured image, eliminating the need for complex WPS button coordination and significantly improving usability while maintaining reliable connection establishment.
4Ease of operation
If passwords are transmitted in plain text form, then transmission simplicity is maintained, but security vulnerability increases due to potential leaks
Solution Approach 1:
The patent introduces an image as an intermediary carrier for password transmission. Instead of directly transmitting or displaying plain text passwords that could be intercepted or leaked, the password is embedded within an image format. This intermediary representation maintains the simplicity of transmission while enhancing security, as the password is not exposed in readable text form during transmission or display, reducing the risk of unauthorized capture or leakage.
Data Source
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AI summary
Embodiments of the present application disclose a method and a related device for accessing an access point. According to the embodiments, a user terminal acquires a two-dimension code, parses the two-dimension code to acquire information about the two-dimension code, where the information about the two-dimension code includes an access password of the access point and an identifier of the access point, and the user terminal accesses the access point according to the information about the two-dimension code. A two-dimension code is automatically scanned or acquired without a need to use a keyboard to enter a password or synchronously click a WPS button, in which case the operation is convenient and simple and a size of a user terminal is reduced. In addition, occurrence of an error arising from entering a long password is avoided, thereby improving the efficiency in accessing an access point. Further, an encryption manner based on a two-dimension code is used to prevent a password from being stolen. In addition, a two-dimension code may be generated by an access point, in which case a password leak does not occur easily and a system is prevented from breakdown caused by an attack by an unauthorized user.