Fingerprint Sensor on Hardware Button for Secure Authentication
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Solution Overview
Problem
Existing electronic apparatuses face challenges in securely authenticating user intentions when performing operations, particularly in scenarios where fingerprint authentication is required but not explicitly initiated, leading to potential unauthorized actions or unintended downloads of content.
Innovation Solution
The electronic apparatus includes a fingerprint sensor and a processor that detects fingerprints on hardware buttons, offering a state-based approach where fingerprint authentication is performed only when explicitly instructed, and displaying confirmation screens or notification of failed authentication to ensure user intent is verified before proceeding with operations or downloads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fingerprint authentication is automatically performed when a hardware button is touched, then security is improved, but unintended authentication and unauthorized actions may occur
Solution Approach 1:
The system provides visual feedback by displaying an icon indicating that fingerprint authentication will be performed, and waits for user confirmation before proceeding. This feedback loop allows users to recognize and correct unintended authentication attempts, resolving the contradiction between security and ease of operation.
Solution Approach 2:
An intermediary confirmation screen is introduced between the button press and the authentication process. This mediator presents the authentication icon and waits for explicit user confirmation, preventing automatic authentication while maintaining security through deliberate user action.
2Reliability
If fingerprint authentication is performed before displaying operation information, then security is improved, but user awareness and control are reduced
Solution Approach 1:
The system performs preliminary action by displaying the authentication icon and operation information before completing the authentication process. This allows users to understand what operation will be performed and confirm their intent, maintaining both security and user awareness.
Solution Approach 2:
The authentication process is segmented into distinct stages: displaying the authentication icon, waiting for confirmation, performing authentication, and then executing the operation. This segmentation allows users to maintain awareness at each stage while still achieving secure authentication.
3Ease of operation
If confirmation screens are displayed for every authentication, then user control is improved, but operation time increases
Solution Approach 1:
The system applies partial confirmation by displaying only an icon indicating authentication will occur, rather than a full confirmation screen. This partial action provides sufficient user control while minimizing the time overhead, balancing user control with operational efficiency.
Data Source
AI summary
The electronic apparatus includes a display, a hardware button, a fingerprint sensor, and at least one processor. The fingerprint sensor detects a fingerprint of a finger touching the hardware button. The processor performs fingerprint authentication based on a fingerprint detection result obtained by the fingerprint sensor, and causes, when determining that a predetermined operation has been performed with the finger on the hardware button, the display to display information in accordance with the predetermined operation. The processor has a first state of performing, when the predetermined operation is performed, the fingerprint authentication, and causing, if the fingerprint authentication fails, the display to start displaying notification information indicating that the fingerprint authentication has failed, and then causing the display to start displaying the information in accordance with the predetermined operation.