NFC Authentication via Passive Sensor Profile Comparison
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Solution Overview
Problem
Standard authentication procedures in NFC-based financial transactions hinder convenience and efficiency by requiring user intervention, which can impede the seamless experience offered by near field communication technology.
Innovation Solution
A method and system that passively authenticates NFC device users through sensor data analysis, establishing profiles for authorized and current users based on data collected over time, comparing these profiles to determine if additional authentication is needed, and using sensors like GPS and accelerometers to characterize user behavior without requiring explicit user input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If standard authentication procedures (PIN, voice recognition, biometric identification) are used in NFC transactions, then security is improved, but user convenience and transaction efficiency deteriorate due to required user intervention
Solution Approach 1:
The system performs authentication automatically by analyzing sensor data (accelerometer, GPS, gyroscope) to establish and compare user profiles without requiring any manual user intervention. The device authenticates the user through passive observation of usage patterns, eliminating the need for PIN entry, voice commands, or biometric scanning while maintaining security through confidence level thresholds.
2Reliability
If standard authentication procedures requiring user intervention are implemented, then authentication reliability is improved, but transaction speed and productivity worsen
Solution Approach 1:
The system pre-establishes user profiles during normal device usage by continuously collecting and analyzing sensor data in the background. When a transaction occurs, authentication is performed by comparing the current sensor data against the pre-established profile, eliminating the need for time-consuming authentication procedures during the actual transaction and enabling near-instantaneous payment processing.
3Ease of operation
If passive authentication through sensor data analysis is implemented, then user convenience is improved by eliminating intervention, but system complexity increases due to profile establishment and comparison mechanisms
Solution Approach 1:
The system leverages existing sensors (accelerometer, GPS, gyroscope) that are already present in modern mobile devices for other functions like navigation and fitness tracking. By repurposing these existing components for authentication purposes, the system avoids adding dedicated authentication hardware, thereby maintaining user convenience while minimizing increases in overall device complexity.
4Measurement precision
If sensor data is collected over extended periods to establish accurate user profiles, then authentication accuracy is improved, but time consumption and loss of time worsen during profile establishment
Solution Approach 1:
The system continuously collects and processes sensor data in the background during normal device operation without requiring dedicated profile establishment sessions. This continuous data collection occurs seamlessly as users naturally interact with their devices, building accurate authentication profiles over time without consuming user time or interrupting normal usage patterns.
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
Enables convenient and efficient authentication in NFC transactions by eliminating the need for user intervention, enhancing security through profile comparison and additional authentication methods when necessary, thereby improving the overall user experience while maintaining transaction integrity.
Implementation Method 1
This short-range communication is based on inductive-coupling, where loosely coupled inductive circuits share power and data over a distance of a few centimeters.
Implementation Method 2
The initiator actively generates a radio frequency (RF) field that can power a passive target.
Data Source
AI summary
In a method for authenticating a current user of a near field communication (NFC) device, a profile for an authorized user of the NFC device is established based on data received from one or more sensors of the NFC device over a first period of time. Responsive to a request for a payment transaction, a profile for the current user of the NFC device is established based on data received from the one or more sensors over a second period of time after the first period of time. The profile for the current user is compared with the profile for the authorized user. A determination is made as to whether one or more values in the profile for the current user are within a range of one or more values in the profile for the authorized user at a confidence level.