Biometric Sensor Selection for Payment Security
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Solution Overview
Problem
Current payment systems using electronic devices for mobile transactions face challenges in user authentication due to differing security policies between credit card companies and financial institutions, making it difficult to standardize the use of biometric sensors for secure transactions.
Innovation Solution
An electronic device equipped with multiple biometric sensors (e.g., fingerprint and iris sensors) and a security module that selects the appropriate sensor based on the issuer's security policy or the payment card's policy for user authentication, allowing secure transmission of payment information via local wireless communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple biometric sensors are provided for user authentication, then authentication flexibility and security policy compliance are improved, but device complexity increases
Solution Approach 1:
The authentication system is segmented into multiple independent biometric sensor modules (fingerprint sensor, iris sensor) that can be independently selected and activated based on the authentication policy, allowing the system to handle different authentication requirements without requiring a complete system redesign
Solution Approach 2:
The system dynamically selects which biometric sensor to activate based on the authentication policy being executed. The processor determines the appropriate sensor type (fingerprint or iris) at runtime based on policy requirements, enabling flexible adaptation to different security policies without fixed sensor assignment
2Reliability
If multiple biometric sensors are activated for authentication, then authentication security is improved, but power consumption increases
Solution Approach 1:
The system extracts and activates only the specific biometric sensor required by the authentication policy, rather than continuously operating all biometric sensors. This selective activation approach maintains security requirements while minimizing power consumption by keeping unused sensors in a low-power state
Solution Approach 2:
The system changes the operational state parameters of biometric sensors based on authentication policy requirements. When a policy requires iris authentication, the iris sensor is activated while the fingerprint sensor remains inactive, and vice versa. This dynamic parameter adjustment optimizes the balance between security and power consumption
Data Source
AI summary
An electronic device and a method of payment by the electronic device are provided. The electronic device includes a local wireless communication circuit, a first biometric sensor and a second biometric sensor, a security module configured to store payment information corresponding to a payment card, a processor electrically connected to the first biometric sensor, the second biometric sensor, the local wireless communication circuit, and the security module, and a memory electrically connected to the processor, wherein the memory is configured to store instructions that cause the processor to select at least one of the first biometric sensor or the second biometric sensor, based on a security policy of an issuer of the payment card or a security policy of the payment card, authenticate a user by using the selected biometric sensor, and if the authentication is successful, transmit the payment information to an external device through the local wireless communication circuit.