Continual Biometric Authentication With Threshold Passcode Fallback
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Solution Overview
Problem
Existing computing devices lack continuous user authentication mechanisms, leaving them vulnerable to unauthorized access after initial biometric verification, and fail to reconfirm user identity during active sessions.
Innovation Solution
A system that creates a biometric authentication reference model using multiple sensors to continuously scan and compare user biometrics, employing AI to verify identity through a threshold comparison of features, and initiates a passcode request if the threshold is not met, updating the model with new biometrics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous biometric scanning is implemented, then security against unauthorized access is improved, but device complexity and processing requirements increase
Solution Approach 1:
The system performs preliminary biometric scanning during the initial authentication phase to create a reference model, and then uses this pre-established model for continuous comparison during the session, avoiding the need to build and store multiple complete biometric profiles
Solution Approach 2:
The system performs biometric scanning at a higher frequency than traditional single-point authentication, continuously sampling biometric data throughout the user session to detect identity changes, accepting the increased processing load as necessary for enhanced security
2Reliability
If biometric authentication is performed continuously, then detection of unauthorized access is improved, but user experience and session continuity may be disrupted
Solution Approach 1:
The system performs biometric authentication periodically at scheduled intervals during the user session rather than continuously without interruption, allowing normal device usage while periodically verifying the user's identity through biometric comparison
Solution Approach 2:
The system automatically performs biometric scanning and comparison without requiring explicit user action or interruption, the sensors capture biometric data passively and the system handles comparison and authentication decisions autonomously
Data Source
AI summary
Apparatus, methods and systems for continual biometric authentication of a user on a user device is provided. Methods may create, for the user, a biometric authentication reference model. Methods may store the biometric authentication reference model at a database associated with the user device. In response to an instantiation of a session by the user on the user device, methods may execute a continual biometric scan. The scanning may be executed until the session is terminated. Methods may identify a number of comparison points between the scanned and stored biometric identifiers. In response to determining that the number of identified comparison points is below a predetermined threshold number of comparison points, methods may initiate a passcode request. The passcode request may request a confirmation of a preset user-selected passcode. In response to determining that the passcode response does not match the preset user-selected passcode, methods may terminate the session.