Biometric Authentication Server Database Entry Invalidation
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Solution Overview
Problem
Existing biometric authentication systems face accuracy issues due to the increasing number of users with similar biometric features, particularly in high-stakes applications like airport gate devices, where high accuracy is crucial.
Innovation Solution
A server device and system that manage a database of biometric information, processing authentication requests from terminals including a gate device. When a user successfully authenticates and passes through the gate, the system invalidates their entry in the database, reducing the number of entries to be authenticated and improving accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the number of users registered in the database increases, then the system can handle more users, but the authentication accuracy deteriorates due to increased similarity among user biometric data
Solution Approach 1:
The system performs preliminary authentication at check-in and security checkpoints before the gate device. Users who successfully complete these earlier authentication stages have their biometric entries invalidated in the database, so only their authentication data remains active. This preliminary action reduces the effective database size for the gate device, improving authentication accuracy when it operates.
Solution Approach 2:
The authentication process is segmented into multiple stages: check-in authentication, security checkpoint authentication, and gate device authentication. Each stage validates and invalidates specific user entries in the database, dividing the overall authentication workflow into discrete steps that progressively reduce database complexity for subsequent stages.
2Reliability
If biometric authentication is performed at multiple checkpoints including gate device, then user verification is thorough, but processing time increases due to repeated database searches
Solution Approach 1:
Authentication is performed in advance at check-in and security checkpoints. The results of these preliminary authentications are used to invalidate user entries in the database before the gate device authentication, eliminating the need for the gate device to search through all user data and reducing processing time at the final checkpoint.
Solution Approach 2:
User biometric entries in the database are discarded (invalidated) after successful authentication at earlier checkpoints. This temporary discarding of authentication data reduces the database search space for subsequent authentication attempts, improving processing speed while maintaining verification reliability through the multi-stage approach.
Data Source
AI summary
Provided is a server device that achieves highly accurate biometric authentication. This server device includes a management unit, and a processing unit. The management unit manages a database that stores biometric information about each of a plurality of users. The processing unit processes an authentication request from each of a plurality of terminals, including a gate device at a final stage of a series of procedures, with reference to the database. When a first user who has succeeded in authentication passes through the gate device, the management unit invalidates an entry of the first user stored in the database.