Playing Card Electronic Authentication for Counterfeit Detection
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Solution Overview
Problem
Counterfeiting of playing cards is a significant problem in the tradable card game industry, making it difficult to distinguish authentic cards from counterfeits and eroding consumer trust.
Innovation Solution
Embedding an electronic memory, antenna, and processing circuit in playing cards to enable wireless communication and authentication using an authentication device and server, which generates and verifies cryptographic tokens, and optionally updates a counter to enhance security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional playing cards without electronic components are used, then the cards are simple and easy to manufacture, but they are easy to counterfeit and consumer trust is eroded
Solution Approach 1:
The patent embeds electronic authentication components (memory chip, antenna, processing circuit) inside the playing card, creating a nested structure where the electronic authentication system is contained within the physical card. This allows the card to maintain its traditional external appearance while incorporating sophisticated authentication technology, resolving the contradiction between simplicity and security.
Solution Approach 2:
The patent introduces an authentication server as an intermediary between the playing cards and users. The server stores master authentication data and verifies cryptographic tokens generated by the cards, providing a trusted third party that enables authenticity verification without requiring complex user-side verification equipment.
2Reliability
If authentication data is stored outside the card for verification, then verification is simplified, but counterfeiting becomes easier as counterfeiters can access and copy the data
Solution Approach 1:
The patent segments authentication data into two parts: master authentication data stored securely in the authentication server and cryptographic tokens generated by the card using embedded secrets. This segmentation allows verification to be performed using the token and server-side data without exposing the card's internal secrets, maintaining security while enabling verification.
Solution Approach 2:
The patent replaces physical access to authentication data with cryptographic verification. Instead of allowing direct access to authentication data that could be copied, the system uses cryptographic functions to generate tokens that can be verified without exposing the underlying secrets, substituting a cryptographic mechanism for a physical data access system.
3Reliability
If electronic authentication components are embedded in the card, then counterfeiting becomes more difficult, but the manufacturing complexity and cost increase
Solution Approach 1:
The patent merges the electronic authentication components (memory, antenna, processing circuit) into a single integrated authentication module that is embedded in the card. This integration reduces the number of separate components that need to be assembled and simplifies the manufacturing process while maintaining security functionality.
Data Source
AI summary
Some embodiments are directed to a playing card system configured to authenticate a playing card for playing a card game. The playing card system comprising a playing card, a playing card authentication device, and a playing card authentication server. The playing card comprises an electronic memory storing authentication data, and a counter.