Touchscreen Authentication Using Fiducial Patterns
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Solution Overview
Problem
Current user authentication systems, such as those relying on user IDs and passwords, digital certificates, and biometrics, are inadequate as they do not provide robust security against phishing and do not effectively prevent unauthorized access.
Innovation Solution
A computing device system that uses a user-selectable photograph with fiducials, capturing and comparing touch pattern data to authenticate users based on the selection and tracing of specific patterns between fiducials, incorporating additional factors like static contact points, fingertip diameter, signature velocity, and direction for enhanced security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional user ID and password authentication is used, then the system is easy to operate, but security is insufficient against phishing and unauthorized access
Solution Approach 1:
The patent combines multiple authentication factors into a unified system: possession of the computing device, knowledge of user credentials, and biometric characteristics captured through touch patterns. This multi-factor approach merges different security layers while maintaining a single user interface for operation.
Solution Approach 2:
The touch-sensitive display serves as an intermediary that captures biometric data (fingerprint patterns, pressure, contact time) when users interact with the interface. This intermediary component enables passive biometric collection during normal operation without requiring separate scanning devices.
2Reliability
If biometric measuring systems are used to enhance security, then unauthorized access is prevented, but the devices are expensive and not readily portable
Solution Approach 1:
The computing device's existing touch-sensitive display performs dual functions: it serves as both the user interface and the biometric sensing mechanism. The system uses the device's own components (display, touch sensor, processor) to capture and analyze biometric data, eliminating the need for separate expensive biometric hardware.
Solution Approach 2:
The touch-sensitive display is made multi-functional by enabling it to both display information and capture biometric characteristics simultaneously. This universal component approach allows a single element to serve multiple purposes, reducing overall system complexity and cost.
3Reliability
If digital certificates are required for authentication, then security is enhanced, but the authentication process becomes more complex
Solution Approach 1:
The patent merges digital certificate validation with biometric authentication into a unified process. Both the possession factor (device with certificate) and biometric factor (touch pattern) are combined in a single authentication flow, maintaining security while streamlining the user experience.
Data Source
AI summary
According to an aspect, a computing device includes a processor; a computer readable memory; a display screen; a touch sensitive panel overlying the display screen; and computing device application instructions coded in the computer readable memory and executed by the processor to: display a user-selectable photograph on the display screen, the user-selectable photograph including a group of fiducials, generate captured pattern data, the captured pattern data representing coordinate values on the touch sensitive panel where touched by a user, and provide for authentication of the user based on a comparison of the captured pattern data and respective locations of the group of fiducials included in the user-selectable photograph.