E-card Transaction Proximity Verification
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Solution Overview
Problem
Unauthorized transactions can occur with electronic NFC cards when the authenticating device is not proximate to the card, allowing hackers to make 'ghost purchases' without the owner's awareness.
Innovation Solution
An apparatus and method that determine whether an authenticating consumer electronics device is proximate to an electronic transaction card by detecting near field communication signals or querying the device's location, and if not proximate, limit or prevent transactions to prevent unauthorized use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If electronic NFC cards are used for transactions without requiring proximity verification, then transaction convenience is improved, but security against unauthorized transactions deteriorates
Solution Approach 1:
The patent introduces a third-party verification system (bank server or payment processor) that acts as an intermediary between the e-card and the transaction execution. This intermediary checks whether the e-card is being used in proximity to the authorized device before allowing the transaction to proceed, thus preventing unauthorized transactions while maintaining convenience for legitimate users
2Reliability
If proximity verification is implemented for e-card transactions, then security against unauthorized transactions is improved, but transaction processing complexity increases
Solution Approach 1:
The system performs proximity verification as a preliminary action before the actual transaction processing. By checking whether the e-card is in proximity to the authorized device upfront, the system prevents unauthorized transactions from entering the processing pipeline, thereby reducing overall system complexity rather than increasing it
3Object-affected harmful factors
If proximity-based authentication is required for e-card transactions, then fraud prevention is improved, but user convenience and ease of use deteriorates
Solution Approach 1:
The system implements self-service authentication where the e-card itself carries proximity information (through NFC or other wireless communication capabilities) and automatically provides verification without requiring additional user actions. The card essentially verifies its own legitimacy and proximity status, maintaining user convenience while preventing fraud
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
Prevents unauthorized transactions by ensuring the authenticating device is nearby, alerting the owner to potential fraud, and allowing transactions only when the device is present, thereby enhancing security and reducing fraudulent activity.
Implementation Method 1
detecting a near field communication (NFC) signal from both the e-card and the authenticating device
Data Source
AI summary
A bank customer's CE device is used to authorize transactions using the customer's electronic debit or credit card (“e-card”). If the CE device is determined not to be proximate to the e-card, the transaction is limited.