Biometric Authentication System with Encrypted Data Transmission
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Solution Overview
Problem
Biometric authentication systems face the risk of living body information leakage due to the potential storage of unencrypted or unencoded data in living body information acquisition devices, compromising security.
Innovation Solution
A biometric authentication system with a detection device and an authentication device connected via a network, where the detection device uses a gate line drive circuit to scan sensor elements based on a sensor control code received from the authentication device, ensuring that only encrypted living body information is transmitted and processed, preventing unauthorized access to sensitive data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If living body information is stored in the detection device for authentication, then authentication can be performed, but the risk of information leakage increases
Solution Approach 1:
The patent extracts the biometric template extraction and storage function from the detection device and relocates it to the authentication device. The detection device only captures raw biometric data and transmits it to the authentication device, which then extracts and stores the authentication template. This separation ensures that the detection device never stores sensitive biometric information, eliminating the leakage risk while preserving authentication capability.
Solution Approach 2:
The patent introduces an intermediary processing mechanism where raw biometric data is transmitted through an encrypted channel to the authentication device, which acts as an intermediary that converts raw data into secure templates. This intermediary process ensures that even if data is intercepted during transmission, it cannot be used for authentication without the proper decryption and processing capabilities held only by the authentication device.
2Reliability
If traditional encryption methods are used for living body information, then data transmission security is improved, but the detection device may still hold unencrypted data
Solution Approach 1:
The patent applies preliminary action by encrypting the biometric data immediately upon capture at the detection device before any storage or transmission occurs. The encryption is performed in advance during the data acquisition phase, ensuring that no unencrypted biometric data exists in the detection device at any point. This preliminary encryption approach eliminates the security vulnerability of storing unencrypted data while maintaining transmission security.
3Productivity
If the detection device processes and stores biometric data locally, then processing speed is improved, but security control becomes difficult
Solution Approach 1:
The patent extracts the data storage function from the detection device and relocates it to the authentication device. The detection device performs only temporary processing and immediate transmission of raw data, while the authentication device handles all storage operations. This functional separation maintains processing speed at the detection device while centralizing security control at the authentication device, resolving the contradiction between local processing efficiency and security control.
Data Source
AI summary
A biometric authentication system is a biometric authentication system having a detection device and an authentication device performing personal authentication. The detection device has a plurality of sensor elements, a plurality of gate lines and a plurality of signal lines provided in correspondence with the sensor elements, and gate line drive circuit scanning the gate lines.