Multi-Modal Authentication Terminal Using Score-Based Verification
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Solution Overview
Problem
Existing authentication methods, such as password and biometric authentication, are cumbersome, prone to false recognition, and costly, with high user operation loads and security concerns, requiring a balance between accuracy and cost.
Innovation Solution
A terminal device that uses multiple authentication methods, including password and biometric authentication, where each method contributes points to a total authentication score, allowing successful authentication with a combination of lower individual accuracy, thus reducing user effort and cost while maintaining high security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high level of accuracy is set for authentication, then security is improved, but device price rises
Solution Approach 1:
The authentication process is divided into multiple independent authentication procedures, each using different authentication information (password, fingerprint, face recognition, iris recognition). Each procedure operates separately and contributes to the overall authentication result, allowing the system to achieve high security without requiring any single expensive biometric component to operate at maximum accuracy
Solution Approach 2:
Multiple authentication methods are combined into a unified authentication system where results from different procedures are integrated. The system merges password authentication with biometric authentication, allowing the cumulative effect of multiple lower-cost methods to achieve the security level previously requiring expensive high-accuracy biometric systems
2Speed
If fingerprint authentication is used, then authentication speed is improved, but false recognition occurs
Solution Approach 1:
Fingerprint authentication is merged with other authentication methods (password, face recognition, iris recognition) in a multi-procedure system. When fingerprint authentication provides fast but potentially inaccurate results, the system can supplement with other procedures to maintain both speed and reliability
Solution Approach 2:
The system introduces an intermediary evaluation mechanism that assesses the reliability of each authentication procedure's result. When fingerprint authentication shows signs of false recognition, the intermediary mechanism can trigger additional verification procedures or adjust the weighting of different authentication methods
3Ease of manufacture
If password authentication is used, then device cost is reduced, but user operation load increases
Solution Approach 1:
The authentication system dynamically adapts to user needs and context. The system can switch between different authentication procedures based on situation - using quick biometric methods when available, or allowing more traditional password input when necessary. The interface dynamically adjusts to minimize user effort while maintaining security
Solution Approach 2:
The system provides self-service authentication capabilities where users can register multiple authentication methods in advance. Once registered, the system automatically selects and executes appropriate authentication procedures without requiring users to manually choose or configure settings, reducing operational burden
Data Source
AI summary
A terminal device (10) comprises a group of sensors (11, 14 to 17) acquiring multiple different pieces of authentication information such as a password, fingerprint information, voiceprint information, and a face image. For each piece of the acquired authentication information, a controller (110) executes a separate authentication procedure based on each piece of authentication information on the basis of a reference level at which the authentication cannot be determined to be successful in authentication by a single piece of authentication information, determines whether the authentication is successful or failed from a combination of results of multiple separate authentication procedures, and unlock the device when determined that the authentication is successful.