User Authentication Device Controller Logic for Single Method Enforcement
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Solution Overview
Problem
When multiple authentication methods are enabled on a single device, users often become confused about which method is being used for login and what items are available, leading to operating errors.
Innovation Solution
A user authentication device with a controller that enables or disables specific authentication methods, displaying only the selected method on the screen and limiting functions accordingly, while notifying users of security level changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple authentication methods are enabled on a single device, then user authentication flexibility is improved, but user confusion and operating errors increase
Solution Approach 1:
The patent extracts and separates the multiple authentication methods into distinct, independently controllable components. Each authentication method (IC card, login, quick authentication) is treated as a separate functional unit that can be individually enabled or disabled, allowing the system to present only the necessary authentication options to the user rather than all possible methods simultaneously.
Solution Approach 2:
The patent implements dynamic switching between different authentication methods based on user selection and system configuration. The authentication interface dynamically adapts to display only the relevant authentication screens and options based on which methods are currently enabled, rather than statically presenting all authentication methods regardless of their enabled state.
2Adaptability or versatility
If multiple authentication methods are enabled on a single device, then authentication versatility is improved, but device complexity increases
Solution Approach 1:
The patent creates a universal authentication control mechanism that can manage multiple different authentication methods through a single unified interface and control system. The controller is designed to handle various authentication types (IC card, login, quick authentication) through a common framework, allowing the system to support multiple functions while maintaining a relatively simple overall structure.
3Adaptability or versatility
If multiple authentication methods are enabled on a single device, then user choice is improved, but security management difficulty increases
Solution Approach 1:
The patent applies different security settings and availability restrictions to different authentication methods based on their individual security characteristics. Each authentication method can have its own enabled/disabled state and associated function availability settings, allowing the system to tailor security management to the specific requirements of each authentication type rather than applying a uniform security policy to all methods.
Data Source
AI summary
A user authentication device includes a user authentication setter that enables or disables a predetermined plurality of authentication methods, and a user authenticator that accepts user authentication by the authentication method that the user authentication setter enables, and a controller that controls the user authentication setter and the user authenticator. When the user authentication setter accepts a setting that enables a single authentication method among the plurality of authentication methods, the controller controls the user authentication setter to disable all authentication methods other than the single authentication method, and the user authenticator accepts only user authentication by the single authentication method.