Biometric Authentication Fallback for Portable Payment Devices
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Solution Overview
Problem
Current portable payment devices often fail in biometric verification due to issues like incorrect finger placement, injuries, or dirty sensors, leading to frustrated consumers who cannot complete transactions as the biometric verification method is 'gated' or 'on/off' when it fails.
Innovation Solution
A method and system that establish a communication protocol between a portable payment device and a point-of-sale system, allowing for alternate verification processes when biometric verification fails, using NFC to enable communication and switching to methods like user signature, issuer contact, or personal identification numbers, ensuring the payment feature remains active.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If biometric verification is used as the sole authentication method, then security is improved, but transaction completion rate deteriorates when biometric verification fails
Solution Approach 1:
The system dynamically changes the authentication parameter from biometric-only to alternative methods (PIN, password, security questions) when biometric verification fails, allowing the authentication approach to adapt based on verification results while maintaining security
Solution Approach 2:
The authentication system transitions from a static biometric-only approach to a dynamic multi-method system that can switch between different verification methods based on real-time success/failure conditions, ensuring both security and transaction completion
2Ease of operation
If on-device biometric verification is implemented, then user convenience is improved, but system reliability deteriorates due to sensor failures and verification errors
Solution Approach 1:
The system prepares alternative authentication methods in advance as backup options, so when biometric verification fails due to sensor issues or user errors, the transaction can continue using pre-configured alternative methods without interruption
Solution Approach 2:
The system introduces alternative authentication methods as intermediary solutions between the primary biometric verification and transaction completion, providing a fallback path when the primary method fails
3Reliability
If a gated biometric verification system is used, then security is improved, but ease of operation deteriorates when verification fails
Solution Approach 1:
The system changes from a static gated approach to a dynamic system that adapts its authentication requirements based on verification outcomes, maintaining security while improving ease of operation through automatic fallback to alternative methods
Data Source
AI summary
A method for validating user credentials in a transaction initiated with a portable payment device associated with a biometric verification process including establishing a communication protocol between the portable payment device and the point-of-sale system, determining at least one result corresponding to a verification requirement of the biometric verification process, in response to determining an absence result or a failure result of the verification requirement of the biometric verification process, determining an alternate verification process associated with the portable payment device, determining a verification requirement of the alternate verification process, and transmitting the verification requirement of the alternate verification process to the point-of-sale system. A system and computer program product for validating user credentials in a transaction are also disclosed.