NFC Presence Verification with Encrypted User Input
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Solution Overview
Problem
Current methods for verifying presence using GPS technology are inaccurate and insecure, while NFC-based solutions lack robust security, and existing communication methods for feedback are time-consuming and costly, compromising anonymity.
Innovation Solution
A method combining NFC technology with an authentication process, including encryption and decryption of user inputs to enhance security and accuracy, where a user input is generated by inserting a non-password component into a password component, ensuring secure verification of presence and feedback without revealing sensitive information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If GPS technology is used for presence verification, then the system can determine location and timing, but the accuracy and immediacy of the reading are insufficient
Solution Approach 1:
The patent replaces GPS technology with NFC technology for presence verification. NFC tags are attached to specific locations and provide immediate and accurate location identification when scanned by NFC-enabled devices, eliminating the inaccuracies and delays associated with GPS positioning.
Solution Approach 2:
The patent introduces NFC tags as intermediary elements fixed at specific locations. These tags serve as mediators between the physical location and the verification system, providing reliable and immediate location identification without requiring complex positioning infrastructure.
2Measurement precision
If NFC tags are used for presence verification, then the system provides immediate location reading, but the security is insufficient as tags can be easily replicated
Solution Approach 1:
The patent combines NFC technology with a user authentication mechanism. The system requires both a valid NFC tag scan and successful user authentication (via password or biometric verification) to confirm presence, thereby maintaining the immediacy of NFC while adding robust security layers to prevent unauthorized access.
Solution Approach 2:
The patent introduces an authentication intermediary layer between the NFC tag scan and the verification process. This intermediary authentication step verifies the user's identity before allowing the NFC tag data to be processed, preventing unauthorized users from exploiting the NFC tags even if they obtain the tag data.
3Loss of information
If traditional communication methods (phone, text, email) are used for feedback, then additional information can be communicated, but the process is time-consuming and costly
Solution Approach 1:
The patent merges the feedback communication function with the existing NFC verification process. The same NFC-enabled device used for presence verification also serves as the communication channel for feedback, eliminating the need for separate phone, text, or email communications and thereby reducing time and cost.
Solution Approach 2:
The patent makes the NFC verification system multi-functional by enabling it to handle both presence verification and feedback communication. The system uses the NFC connection already established during verification to transmit feedback information, allowing one system to serve multiple purposes.
4Loss of information
If feedback is communicated traditionally, then additional information can be transferred, but anonymity is compromised and bias may be introduced
Solution Approach 1:
The patent uses the NFC verification system as an intermediary channel for feedback communication. This intermediary system transfers feedback information securely without requiring direct personal communication between parties, thereby preserving anonymity and preventing bias that would arise from traditional direct communication methods.
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 solution provides a more accurate and secure verification of presence, ensuring that even if feedback is given in plain sight, neither the password nor the feedback information is disclosed to the visitor, while also reducing the time and cost associated with communication.
Implementation Method 1
reading an identifier which is associated with a location from a NFC tag fixedly coupled to the location by a NFC-enabled device
Data Source
AI summary
The present disclosure provides a more accurate and secure for verification of presence which comprises: reading an identifier which is associated with a location from a NFC tag fixedly coupled to a location by a NFC-enabled device; verifying the received identifier against an identifier database to verify the location corresponding to the received identifier; generating a query based on the verified location to solicit a user input entered by a user in charge of the location; receiving the user input by the NFC-enabled device; recording a check-in time according to the time of reading the identifier; and recording a check-out time according to the time of receiving the user input.