Dynamic QR Code Security via Sound Wave Authentication
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Solution Overview
Problem
Existing near-field data transmission methods, such as using QR codes or barcodes, are vulnerable to data leakage when information patterns are photographed by malicious users, compromising the security of the transmitting device, especially in scenarios involving asset transactions.
Innovation Solution
A data transmission method that involves a data transmitter monitoring and parsing sound wave information containing security information within a predetermined distance, generating pattern information based on this security information and data to be sent, and displaying it for authentication by a data receiver, ensuring secure data transmission by dynamically changing the security information based on transmission periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If QR codes or barcodes are used for near-field data transmission, then data transfer between devices is simple and easy to operate, but the information pattern can be photographed by malicious users causing data leakage and security threats
Solution Approach 1:
The patent applies dynamics by making the security verification code time-dependent and dynamically changing. The code is generated based on the current time and automatically expires after a predetermined period, transforming the static QR code into a dynamic security mechanism that prevents unauthorized reuse of photographed patterns
Solution Approach 2:
The patent implements periodic action through time-based code generation and expiration. Security verification codes are generated in periodic intervals with predetermined validity periods, creating a temporal rhythm that ensures codes expire and must be renewed, preventing long-term security vulnerabilities from photographed patterns
2Device complexity
If static information patterns like QR codes are used for data transmission, then the transmission method is simple, but the security information can be stolen and reused by malicious users for asset transactions
Solution Approach 1:
The patent transforms the static information pattern into a dynamic security mechanism by incorporating time-dependent verification codes that automatically expire. This dynamic approach maintains relatively simple device implementation while fundamentally improving security reliability by preventing reuse of stolen patterns
Solution Approach 2:
The patent applies parameter changes by introducing time as a critical parameter in the security verification code. The code's validity is tied to temporal parameters (generation time, expiration time), causing the security parameters to change continuously, which prevents malicious reuse while maintaining system simplicity
3Productivity
If information patterns are displayed without security verification, then data transmission is fast and direct, but malicious users can photograph and misuse the patterns causing economic loss
Solution Approach 1:
The patent applies preliminary action by performing security verification before completing the data transmission process. The time-dependent verification code must be validated and matched before the actual data transfer occurs, ensuring security checks are done in advance to prevent unauthorized transactions
Solution Approach 2:
The patent introduces a time-dependent verification code as an intermediary element between the data transmitter and receiver. This intermediary security mechanism mediates the transmission process by requiring temporal verification, adding security without significantly impacting the overall transmission speed
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
This approach prevents pattern information from being stolen by malicious users, enhancing the security of the data information transmitted by ensuring that only authenticated receivers can access the data, thus protecting user data from unauthorized access.
Implementation Method 1
monitoring, by a data transmitter, sound wave information including predetermined security information within a predetermined distance
Data Source
AI summary
The present application discloses systems and methods in which sound wave information associated with a data transmission is monitored within a predetermined distance from the client device, where the sound wave information including predetermined security information. In response to detecting sound wave information associated with a data transmission, the sound wave information is parsed to obtain the predetermined security information included in the detected sound wave information. Pattern information is generated based on the predetermined security information and data information to be sent. The generated pattern information is then displayed so that a second device can obtain the generated pattern information.