Smart Card Tactile Interface for Secure Multi-Factor Authentication
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Solution Overview
Problem
Existing control systems for protected objects, such as machines and devices, are vulnerable to unauthorized access due to reliance on single-factor or two-factor authentication methods, and require expensive interfaces in harsh environments, which are not secure against unintended use or manipulation.
Innovation Solution
A control system utilizing a smart card with a tactile sensing user interface that captures and transmits authentication and control data, enabling multi-factor authentication and secure access/control of functions, while being adaptable for use in harsh environments and supporting battery-less operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If single-factor or two-factor authentication is used, then access control is implemented, but security against unauthorized manipulation is insufficient
Solution Approach 1:
The patent combines multiple authentication factors (biometric data, personal identification number, and card data) into a single integrated authentication process. The biometric sensor, PIN keypad, and card reader are merged into one security token system, requiring all three factors to be presented simultaneously for authentication, thereby significantly enhancing security without requiring separate systems for each factor.
Solution Approach 2:
The security token is designed as a multi-functional device that performs biometric scanning, PIN entry, and card data storage/processing. This universal device replaces multiple separate authentication tools (fingerprint scanner, keypad, smart card), providing enhanced security while simplifying the overall authentication mechanism through consolidation.
2Ease of operation
If expensive keyboards or touch screens are used in harsh environments, then user access for data entry is provided, but cost increases
Solution Approach 1:
The patent replaces expensive physical keyboards and touch screens with a virtual interface projected onto a standard display device. The keyboard and touch screen functionalities are copied as software overlays, allowing data entry through biometric authentication and visual feedback without requiring costly specialized hardware for harsh environments.
Solution Approach 2:
The patent substitutes mechanical input devices (physical keyboards, touch screens) with a biometric-based authentication system combined with a projected virtual interface. The tactile biometric sensor replaces mechanical key presses, and the projected keyboard replaces physical keys, significantly reducing hardware costs while maintaining ease of operation in harsh environments.
Data Source
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AI summary
According to an aspect of the invention, a security token is conceived, in particular a smart card, comprising a tactile sensing user interface, wherein said tactile sensing user interface is adapted to capture a stream of authentication data corresponding to a sequence of positions of a finger engaging with said tactile sensing user interface and representing a user-specific credential for accessing at least one function of a controllable object, said security token being adapted to transmit said stream of authentication data to the controllable object in order to access said function.