Authentication Chip Iridescence Pattern Anti-Forgery
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Solution Overview
Problem
Current authentication methods for cards, such as magnetic cards and IC cards, are vulnerable to forgery due to easily readable information and reliance on personal identification numbers, which can be stolen or compromised, and biometric methods are inconvenient and not foolproof.
Innovation Solution
A card authentication system utilizing an authentication verifying chip with an iridescence pattern that appears as a result of specific light reflection conditions, making it impossible to copy and ensuring authenticity through encrypted verification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If magnetic stripe or IC card information is used for authentication, then card reading and processing is convenient and fast, but the information can be easily read by skimmers and devices are vulnerable to forgery
Solution Approach 1:
The patent uses iridescence color changes in the authentication verifying chip. The chip contains a transparent medium with specific refractive index that reflects light to produce iridescent colors visible only under certain lighting conditions. This optical property cannot be copied by conventional means, providing security while maintaining visual verification capability.
Solution Approach 2:
The patent changes the physical parameter of light reflection by using a transparent medium with a specific refractive index (1.3-1.7). The authentication chip produces iridescent colors through controlled light reflection at specific angles, creating a visual pattern that is difficult to replicate and provides enhanced security verification.
2Reliability
If biometric recognition techniques are used for authentication, then card security against forgery is improved, but recognition time increases and operational convenience decreases
Solution Approach 1:
The authentication verifying chip is pre-installed on the card during manufacturing, containing the iridescence pattern and encryption information. This preliminary preparation allows for rapid verification during transaction without requiring time-consuming biometric scanning or pattern recognition processes.
3Reliability
If IC cards with semiconductor memory are used instead of magnetic cards, then information security is improved, but card cost increases significantly
Solution Approach 1:
The patent introduces an authentication verifying chip as an intermediary element on the card. This chip contains the iridescence pattern and encryption information, serving as a mediator between the card body and verification systems. It provides enhanced security through optical properties that are difficult to replicate, while being more cost-effective than full IC card implementations.
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
The iridescence pattern on the chip provides a unique, uncopyable verification method that enhances card security, preventing forgery and ensuring authenticity, while the encrypted verification process adds an additional layer of protection against illegitimate use.
Implementation Method 1
iridescence is viewed where an incident light entered into a transparent medium appeared as strengthened when the phase of the light reflected at the surface of the transparent medium concurs with the phase of the light reflected at the rear surface of the medium
Implementation Method 2
the phase of the light reflected at the surface of the transparent medium concurs with the phase of the light reflected at the rear surface of the medium
Data Source
AI summary
A structure of a subject such as a card, a bank note, or a stock certificate easily faked and needing authenticity validation and a method for judging the authenticity of the subject. An authenticity validation chip having structural color developers irregularly arranged is attached to a card. An optical sensor detects the arrangement of the structural color developers to individually recognize the card or judge its authenticity. To validate the authenticity, when or after the card is taken in, the information in the authenticity validation chip provided on the card is read. Each of the structural color developers is a transparent resin flake or a transparent resin thin layer. The information is read two-dimensionally with a camera, and the authenticity of the authenticity validation chip is judged by observing the distributed state of the structural color developers. Alternatively, the information can be read linearly. A given straight or curved line can be used by altering the read portion while associating the shape of the read line with the movement of the card in taking in the card.