EMV Risk Parameter Reset via Wireless Signal Feedback
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Solution Overview
Problem
Existing proximity payment systems face inefficiencies in resetting the EMV risk parameter, which can lead to unnecessary transaction limitations, especially when the risk of fraud and bad debt is low, and this process can be time-consuming, especially for non-card shaped devices.
Innovation Solution
A system comprising a proximity payment device, a communication device, and an authorization device connected via a communication link, allowing for wireless communication to reset the EMV risk parameter by transmitting signals for authorization, enabling the parameter to be reset without requiring a direct communication channel between the communication device and the authorization device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the EMV risk parameter is reset using traditional contact-based card readers, then the parameter can be reset, but the process takes twenty to thirty seconds which is considerably longer than the transaction itself and only works for card-shaped devices
Solution Approach 1:
The patent replaces the mechanical contact-based card reader system with a wireless communication system. The proximity payment device uses an RFID IC and antenna to communicate with the POS terminal wirelessly, eliminating the need for physical insertion into a card reader. This substitution reduces reset time and enables compatibility with non-card-shaped devices that cannot be inserted into traditional readers.
2Reliability
If the EMV risk parameter is reset after a predetermined number of transactions, then fraud risk is managed, but the device becomes unusable for further transactions until reset which causes unnecessary limitations when fraud risk is low
Solution Approach 1:
The system implements a feedback mechanism where the POS terminal communicates with the authorization device to determine whether the EMV risk parameter should be reset. The authorization device evaluates current fraud risk conditions and provides feedback to the POS terminal, which then decides whether to reset the parameter. This allows the system to maintain fraud risk management while avoiding unnecessary transaction limitations when risk is low.
Solution Approach 2:
The EMV risk parameter reset policy is made dynamic rather than static. Instead of resetting after a fixed number of transactions regardless of conditions, the system dynamically adjusts the reset decision based on real-time fraud risk assessment. The POS terminal can choose to reset the parameter immediately, defer resetting, or allow continued usage based on current risk conditions, enabling transaction continuity when appropriate while maintaining security.
Data Source
AI summary
In accordance with some embodiments, a method comprises transmitting at least one signal, via a wireless interface, from an identification token issued to an account holder to a communication device issued to the account holder; receiving at least one signal from the communication device via the wireless interface; and resetting a security parameter in the identification token in response at least in part to receiving the at least one signal from the communication device. In accordance with some embodiments, apparatus comprises an identification token issued to an account holder, the identification token to transmit at least one signal, via a wireless interface, to a communication device issued to the account holder, to receive at least one signal from the communication device via the wireless interface, and to reset a security parameter in the identification token in response at least in part to receiving the at least one signal from the communication device.