Dynamic Biometric Authentication with Temporal Pattern Updates
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Solution Overview
Problem
Biometric authentication systems, such as those using face images, struggle with the inability to change registered biological patterns, leading to permanent risks of false authentication and unauthorized use when data is forged or leaked.
Innovation Solution
An authentication system that holds additional information about changes that can be reproduced by the user, evaluating authentication success based on consistency between the reproduced biological pattern and the input pattern, including concealed parts as an evaluation factor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a biometric authentication system uses a registered biological pattern for authentication, then authentication can be performed without contact, but the registered pattern cannot be changed, leading to permanent security risks when data is forged or leaked
Solution Approach 1:
The patent applies dynamics by making the registered biological pattern changeable over time. The system periodically updates the registered pattern with newly acquired biometric data, transforming the static authentication template into a dynamic one that evolves. This allows the system to maintain contactless operation while periodically refreshing the authentication criteria to mitigate security risks from leaked or forged data.
Solution Approach 2:
The patent changes the parameter of the registered pattern by acquiring new biometric data at different time points and using these to update the registration. The system alters the temporal parameter of pattern registration, storing multiple versions of the biological pattern acquired at different times, thereby enabling the registered pattern to change rather than remaining fixed indefinitely.
2Reliability
If the registered biological pattern is changed periodically, then security against leaked data is improved, but the system complexity increases
Solution Approach 1:
The patent applies preliminary action by acquiring and storing multiple biological patterns at different time points in advance. Instead of reacting to security threats, the system proactively collects and stores temporal variations of the biological pattern beforehand, creating a repository of time-stamped data that can be used to detect and respond to authentication attempts without requiring complex real-time analysis.
Solution Approach 2:
The patent uses copying by creating multiple copies of the biological pattern acquired at different times. Rather than attempting to analyze a single complex pattern, the system creates simplified temporal copies (first time point pattern, second time point pattern, etc.) that can be independently compared and evaluated, reducing the complexity of each individual comparison while maintaining overall security.
3Measurement precision
If multiple biological patterns acquired at different time points are stored and compared, then authentication accuracy is improved, but the processing time and computational load increase
Solution Approach 1:
The patent applies partial action by not requiring comparison with all stored biological patterns simultaneously. Instead of exhaustively comparing the input pattern against every historical pattern, the system selectively compares with relevant time-point patterns or uses a subset of stored patterns, achieving sufficient authentication accuracy without the full computational burden of comparing against all available data.
Data Source
AI summary
Unauthorized use of a biological pattern registered in a face image authorization system is made difficult. With respect to the previously registered biological pattern for authorization, additional information is held concerning a change that can be reproduced by a user having the biological pattern for authentication, and success or failure of the authentication is evaluated according to consistency between the biological pattern for authentication that is reproduced using the additional information and a pattern input at the time of authentication as an evaluation factor. By changing the additional information as necessary, unauthorized use of biological pattern data or the like is made difficult.