Dynamic Pressure Biometric Authentication via Piezoresistive Fabric
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Solution Overview
Problem
Current biometric identification methods rely on static data, making them vulnerable to duplication and imitation, thus failing to provide secure authentication.
Innovation Solution
A dynamic pressure recording system that uses a pressure-sensitive fabric and electrical grid to capture a unique, time-varying pressure profile, which is used as a biometric characteristic for user authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If static biometric data is used for identification, then the system is simple to implement, but the system is vulnerable to duplication and imitation attacks
Solution Approach 1:
The patent transforms static biometric identification into dynamic identification by capturing time-varying pressure profiles during interaction. The pressure data changes over time as the user interacts with the device, creating a dynamic biometric signature that cannot be easily replicated from a static copy.
Solution Approach 2:
The patent introduces pressure-sensitive fabric as an intermediary between the user and the identification system. This intermediary captures mechanical pressure information during interaction, converting physical contact into measurable pressure profiles that serve as the basis for dynamic biometric authentication.
2Reliability
If dynamic pressure profiling is implemented, then authentication security is enhanced, but the device complexity increases
Solution Approach 1:
The patent uses pressure-sensitive fabric, which consists of flexible thin films with embedded sensing elements. This approach maintains device flexibility and wearability while incorporating complex sensing capabilities, allowing the system to capture detailed pressure profiles without requiring rigid or bulky hardware.
Solution Approach 2:
The patent combines multiple functions into the pressure-sensitive fabric, which simultaneously serves as the user interface, the sensing element, and part of the structural component. This merging reduces overall system complexity by integrating what would otherwise be separate components into a single multifunctional element.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system provides a secure and unique authentication method that is difficult to replicate, enhancing the security of personal identification by utilizing a dynamic and temporal biometric signature.
Implementation Method 1
a pressure-sensitive fabric and electrical grid to capture a unique, time-varying pressure profile
Data Source
AI summary
Described herein are biometric identification systems and methods that use a set of finely spaced analog sensors to generate and record a unique dynamic pressure user profile. The pressure profile is evaluated based on data from a trained model that comprises a number of personal biometric characteristics used to uniquely identify a person, e.g., for authentication purposes, such as granting access to sensitive, confidential information in connection with an electronic commercial transaction, an Internet of Things (IoT) device, an automotive device, an identity and access management (IAM), or a robotic or high functioning touch sensing device.