Continual Biometric Authorization for Secured Functions
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Solution Overview
Problem
Computing devices do not ensure continuous user authorization for secured functions, leading to potential unauthorized access during grace periods, where users may lose control of the device.
Innovation Solution
Implementing continual authorization through biometric sensors, such as fingerprint or facial recognition, to continuously verify user identity during the execution of secured functions, ensuring only authorized users can access and use these functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continual biometric verification is implemented during secured function execution, then security against unauthorized access is improved, but device complexity increases
Solution Approach 1:
The patent replaces traditional mechanical authentication systems (password entry, physical tokens) with biometric authentication using optical sensors, capacitive sensors, or other non-contact detection methods. This substitution maintains security while reducing mechanical complexity and improving user convenience.
Solution Approach 2:
The patent introduces an intermediary authorization module that continuously monitors biometric data during function execution. This mediator layer handles the complex verification logic without requiring the entire system to be redesigned, isolating complexity to a specific component while maintaining overall system simplicity.
2Ease of operation
If grace periods are provided for authorization, then ease of operation is improved, but security against unauthorized access deteriorates
Solution Approach 1:
The patent implements periodic biometric verification during the grace period instead of continuous verification. The system checks authorization at predetermined intervals or upon specific events (function initiation, parameter changes), maintaining security while avoiding the burden of constant verification and ensuring ease of operation during legitimate use.
Solution Approach 2:
The patent dynamically adjusts verification frequency based on the security sensitivity of the function being executed. High-security functions trigger more frequent checks, while lower-risk functions allow longer intervals between verifications. This dynamic approach balances security requirements with operational ease in real-time.
Data Source
AI summary
A computing device may determine to execute a secured function. The computing may obtain a biometric of the user of the computing device utilizing one or more biometric sensors associated with the computing device, determine that the biometric matches the biometric of a user authorized to utilize the secured function, and execute the secured function. Whenever during execution of the secured function the computing device determines that the biometric sensor no longer detects the biometric of the user, the computing device may cease execution of the secured function.