Patterned Smart Card Module for Visual Authentication Security
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Solution Overview
Problem
Conventional smart cards face risks of data eavesdropping through contactless interfaces and have visually uninteresting designs due to exposed contact pads, which could be utilized for additional information.
Innovation Solution
A patterned smart card module with an IC chip and a conductive surface coated with a patterned ink layer, where the pattern represents holder-related data, allowing for secure authentication and potentially omitting the card body for miniaturization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If contactless interface is used for smart card operation, then convenience of use is improved, but security against data eavesdropping deteriorates
Solution Approach 1:
The patent introduces an intermediary verification mechanism between the contactless interface and the IC chip data. A visual pattern is displayed on the smart card surface that serves as a mediator - users must visually verify that the pattern matches their expected authentication code before allowing data access. This intermediary step prevents unauthorized access even if the contactless interface is compromised, as the visual pattern provides an additional layer of security that cannot be eavesdropped remotely.
2Ease of operation
If contact pads are exposed on the smart card surface, then data reading function is improved, but visual appearance and information display capability deteriorate
Solution Approach 1:
The patent merges the authentication information display function with the existing contact pad area. Instead of leaving contact pads exposed or using separate display areas, the invention combines the authentication pattern display directly on the smart card surface in proximity to the contact pads. This integration allows the contact pads to maintain their electrical function while the surrounding area provides visual authentication information, eliminating the need to choose between functional exposure and aesthetic design.
3Reliability
If authentication verification is added to the data access process, then security is improved, but operation time and complexity increase
Solution Approach 1:
The patent performs preliminary action by pre-generating and displaying the authentication pattern on the smart card surface before any data access attempt occurs. The visual pattern is prepared in advance and remains visible on the card, eliminating the need for real-time pattern generation or complex verification algorithms during the actual data access operation. This preliminary preparation allows for rapid verification - users simply need to visually compare the pre-displayed pattern with their expected code, significantly reducing the time and computational complexity of the authentication process.
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
Enhances security by ensuring data access is only granted when the pattern matches the holder-related data, and provides a visually appealing, personalized design.
Implementation Method 1
controlling, by the computer device, a laser engraving machine that is coupled to the computer device to engrave a pattern representing the holder-related data on the conductive ink layer of the smart card module
Data Source
AI summary
A patterned smart card module includes a chip module and a patterned ink layer coated on a conductive surface of the chip module. The IC chip of the chip module stores chip data therein, and the chip data includes holder-related data. The patterned ink layer has a pattern relating to the holder-related data.