Biometric IC Card Authentication for Secure Child Card Issuance

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Solution Overview

Problem

Existing issuing devices for child IC cards require mechanisms to acquire biological information from parent IC cards for authentication, which can be inefficient and may compromise security.

Innovation Solution

An IC card system that includes a sensor for acquiring biological information, a storage unit for templates and data, and a processor for authentication, allowing the issuance of a child IC card without directly using the parent's biological information, thus enhancing security and efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a mechanism for acquiring biological information from parent IC card is used, then authentication function is achieved, but device complexity increases

Engineering Contradiction:
Improveauthentication functionVSAvoidissuing device mechanism
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the biological information acquisition function from the issuing device and relocates it to the IC card itself. The IC card now contains a biological information acquisition unit that can capture fingerprints, facial images, or other biometric data directly, eliminating the need for external devices to acquire this information during issuance.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces a biological information management unit as an intermediary between the acquisition unit and the authentication system. This management unit securely stores, processes, and controls access to biological information templates, acting as a mediator that simplifies the overall system architecture while maintaining security.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If parent's biological information is directly used for child IC card issuance, then issuance process is simplified, but security is compromised

Engineering Contradiction:
Improveissuance processVSAvoidsystem security
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent creates a cryptographic copy or representation of biological information in the form of templates rather than using actual biological data. These templates are mathematical representations that enable authentication without exposing or transmitting sensitive biological information, thus simplifying the issuance process while maintaining security.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent implements preliminary security measures by encrypting and protecting biological information templates before they are stored or transmitted. The system pre-establishes security protocols and access controls that prevent unauthorized access or misuse of biological data throughout the issuance process.

Inventive Principle:
Principle #9Preliminary anti-action

3Reliability

If biological information is stored and processed externally, then authentication is achieved, but information loss risk increases

Engineering Contradiction:
ImproveauthenticationVSAvoidbiological information security
Core Design Contradiction:
ReliabilityVSLoss of information

Solution Approach 1:

The patent embeds the biological information management unit within the IC card itself, creating a nested structure where the acquisition unit, template storage, and authentication functions are all contained within the card. This self-contained architecture eliminates the need for external storage and processing of sensitive biological data.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The patent implements local processing and storage of biological information within the IC card's secure environment. Each IC card maintains its own biological information templates and authentication capabilities independently, ensuring that sensitive data remains localized and protected rather than being centralized in external systems.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS12512980B2IC card, portable electronic device, and issuing device
Publication Date: 2025.12.30 KK TOSHIBA
  • US12512980B2 patent drawing
  • US12512980B2 patent drawing
  • US12512980B2 patent drawing

AI summary

According to an embodiment, an IC card associated with a parent IC card includes a sensor, a first storage unit, a second storage unit, a communication unit, and a processor. A sensor is configured to acquire biological information. The first storage unit is configured to store a template with which the biological information is verified. The second storage unit is configured to store second data related to first data stored in the parent IC card. The communication unit is configured to transmit and receive data to and from a host device. The processor is configured to authenticate a user based on a verification result of the biological information and the template in accordance with a command from the host device, and transmit at least some of the second data to the host device if the authentication of the user is successful.