Biometric Template Segmentation and Periodic Encryption for Authentication
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Solution Overview
Problem
Biometric authentication systems face significant security risks due to the inability to change biometric information, making them vulnerable to hacking and data breaches, which can lead to severe consequences if biometric data is leaked.
Innovation Solution
The method involves dividing biometric templates into pieces and encrypting them using periodically changing encryption algorithms, ensuring secure management and authentication by reassembling the encrypted pieces for 1:1 authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If biometric information is stored on the server for authentication, then authentication functionality is achieved, but security risk increases due to potential hacking and data leakage
Solution Approach 1:
The patent divides biometric template information into multiple template pieces before storing them on the server. This segmentation ensures that even if the server is hacked, the complete biometric information cannot be reconstructed from individual pieces alone, thus reducing security risks while maintaining authentication functionality.
Solution Approach 2:
The patent implements periodic encryption of stored template pieces using updated encryption keys at regular intervals. This periodic action enhances security by preventing long-term exposure of encrypted data, while the authentication system continues to function by using the latest encryption key for decryption during verification.
2Object-affected harmful factors
If biometric template information is divided into multiple pieces and stored, then security is enhanced, but system complexity increases
Solution Approach 1:
The patent divides the biometric template into multiple manageable pieces that can be independently stored and encrypted. This segmentation approach enhances security while keeping each individual piece simple to manage, reducing the overall system complexity compared to managing a single large encrypted template.
Solution Approach 2:
The patent creates a universal authentication mechanism that works with divided template pieces through standardized encryption and decryption processes. The server can store, encrypt, and verify multiple template pieces using the same encryption key management system, simplifying the overall architecture despite the segmented structure.
3Object-affected harmful factors
If encryption algorithm is changed periodically, then security against data leakage is improved, but processing time and computational resources increase
Solution Approach 1:
The patent implements periodic encryption key updates at predetermined intervals rather than continuous changes. This approach maintains strong security by regularly refreshing encryption keys while avoiding the continuous processing overhead that would result from frequent or real-time key changes, thus reducing time loss.
Solution Approach 2:
The patent pre-establishes encryption key update schedules and algorithms before data storage. By preparing the encryption framework in advance with predetermined update intervals, the system minimizes processing time during actual authentication operations, as the encryption and decryption processes follow pre-planned parameters rather than requiring dynamic decision-making.
Data Source
AI summary
Disclosed is a biometric authentication method capable of securely managing template pieces of biometric information with encryption. The Template for Registration of biometric information of this invention is divided into template pieces for management, but it is periodically encrypted with periodically changed encryption algorithm to enhance security. It presents a method of reassembling the template pieces into the original template to performing the authentication process.