Biometric Template Encoding for False Acceptance Resistance
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Solution Overview
Problem
Current biometric authentication and identification methods are vulnerable to false acceptance when an interloper uses a purloined mobile device to access services, compromising confidentiality and security.
Innovation Solution
A biometric encoding method generates a proof biometric template using an encoding scheme that represents the distance between the proof biometric feature and a reference biometric feature, incorporating a pre-encoder, transition function, and noise-generation function, and is implemented in a neural network, ensuring secure and confidential biometric data processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If biometric templates are stored and compared directly, then identification accuracy is improved, but security and confidentiality deteriorate due to vulnerability to false acceptance and data theft
Solution Approach 1:
The patent introduces an encoding terminal as an intermediary between the biometric acquisition terminal and the database. This encoding terminal transforms the raw biometric template into an encoded version before storage and comparison. The encoding scheme acts as a mediator that preserves the essential biometric characteristics for accurate identification while transforming the data into a secured format that prevents direct access and false acceptance attacks.
Solution Approach 2:
The patent applies parameter changes by transforming the biometric template through an encoding scheme that modifies its representation. The encoding terminal changes the parameters of the biometric data by applying a transformation function that preserves recognition accuracy while enhancing security. This parameter transformation ensures that even if the encoded template is intercepted, the original biometric information remains protected.
2Productivity
If biometric data is processed and stored in raw form, then processing speed is improved, but confidentiality and protection against data theft deteriorate
Solution Approach 1:
The patent implements preliminary action by encoding the biometric template before it is stored in the database. The encoding terminal performs this transformation in advance, so that when the template is later retrieved for comparison, it is already in the secured encoded format. This preliminary encoding ensures that biometric data is protected from the outset while maintaining efficient processing capabilities through optimized encoding algorithms.
3Ease of operation
If an interloper uses a purloined mobile device to access services, then ease of operation is improved, but security deteriorates due to false acceptance risk
Solution Approach 1:
The encoding terminal serves as a security intermediary that validates the authenticity of the mobile device before allowing access. By encoding the biometric template and comparing it with the stored encoded version, the system creates a secure layer that prevents interlopers from using purloined devices. The encoding scheme acts as a mediator that ensures only authorized devices can access the services, maintaining ease of operation for legitimate users while blocking unauthorized access.
Data Source
AI summary
A method for encoding, implemented by an encoding terminal, a proof biometric template, said method having, as input datum, a proof biometric feature, and delivering, as output datum, a proof biometric template, wherein the proof biometric template is generated from the proof biometric feature according to an encoding scheme representative of the distance, according to a metric, between the proof biometric feature and a reference biometric feature.