Touchpad Biometric Authentication via Stroke Input
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Solution Overview
Problem
Current biometric authentication systems rely solely on either knowledge-based or possession-based security tokens, lacking a robust combination of both inherent biometric data and knowledge-based inputs, which can be vulnerable to unauthorized access.
Innovation Solution
A method that combines a user's biometric data with a secret pattern created by finger strokes on a touchpad, where image stabilization extracts a readable fingerprint and matches it with a stored profile, while also requiring a password entry, enhancing authentication security by integrating both biometric and mechanical components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If only knowledge-based security tokens (passwords) are used, then ease of operation is maintained, but security reliability is insufficient
Solution Approach 1:
The patent combines knowledge-based authentication (password entered via strokes) with possession-based authentication (fingerprint captured during stroke input) into a unified authentication mechanism. The touchpad simultaneously captures both the user's knowledge (pattern recognition) and biometric data (fingerprint), merging two authentication modalities into a single seamless operation that enhances security without compromising ease of use.
2Reliability
If only possession-based security tokens (biometric data) are used, then security reliability is improved, but ease of operation deteriorates due to additional steps
Solution Approach 1:
The system merges biometric capture and pattern recognition into a single stroke-input operation. Users naturally perform strokes to enter passwords or patterns, and the system simultaneously captures their fingerprint during this action, eliminating the need for separate biometric scanning steps and maintaining operational simplicity while enhancing security.
Solution Approach 2:
The touchpad system automatically captures the user's fingerprint during the natural stroke-input process without requiring separate biometric scanning actions. The system serves itself by utilizing the existing user interaction (stroke input) to simultaneously obtain both authentication elements (pattern recognition and biometric data), eliminating additional user steps.
3Reliability
If multiple authentication factors are combined, then security reliability is enhanced, but device complexity increases
Solution Approach 1:
The touchpad is designed as a universal input device that performs multiple functions: it serves as both a pattern recognition interface for knowledge-based authentication and a biometric sensor for fingerprint capture. This multi-functionality eliminates the need for separate authentication devices, maintaining device simplicity while implementing multi-factor authentication.
Solution Approach 2:
The patent merges the functions of password input interface and biometric sensor into a single touchpad component. By combining these functions in one device, the system achieves multi-factor authentication without proportionally increasing device complexity, as the same hardware serves dual purposes.
Data Source
AI summary
Enhanced biometric authentication combines a user's inherent biometric data with the user's password, code, or other secret glyph. For example, the user's finger makes an input on a touchpad. An image of a fingerprint is extracted from the input, along with the user's password, code, or other secret glyph. In one input, then, the user's finger serves two authentication schemes for increased security.