NFC Package Biometric Data Encryption Storage

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Solution Overview

Problem

Existing electronic devices lack secure storage solutions for biometric information, making them vulnerable to data breaches and unauthorized access, especially when biometric data is not encrypted before storage.

Innovation Solution

An electronic device with a biometric sensor that encrypts biometric data using an encryption key and transfers it to a secure storage device via a near-field-communication (NFC) controller, where it is decrypted and stored using a corresponding decryption key, ensuring tamper-resistant storage and enhanced security.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If biometric data is stored without encryption in existing electronic devices, then storage simplicity is maintained, but security is compromised making devices vulnerable to data breaches and unauthorized access

Engineering Contradiction:
ImprovesecurityVSAvoidstorage structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system segments the storage architecture into multiple components: a biometric sensor that captures data, an encryption unit that secures data before storage, a secure storage device that stores encrypted data, and a decryption unit that processes data during authentication. This segmentation allows each component to specialize in its function, achieving high security while maintaining manageable complexity through clear division of responsibilities.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces an intermediary encryption/decryption mechanism between the biometric sensor and the storage device. The encryption unit acts as a mediator that transforms raw biometric data into encrypted form before storage, and the decryption unit mediates the reverse process during authentication. This intermediary layer ensures security without requiring the storage device itself to be complex, as the cryptographic operations are handled by dedicated units.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If a secure storage device with tamper-resistant function is implemented, then data protection is enhanced, but device complexity increases

Engineering Contradiction:
Improvedata protectionVSAvoidsystem architecture
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the secure storage device with the NFC controller into an integrated NFC package. This combination allows the secure storage functionality to be implemented within the existing NFC controller architecture, leveraging its communication capabilities and reducing the need for separate dedicated hardware components. The merging approach enhances data protection while controlling overall system complexity through integration.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If biometric data is encrypted before storage using an encryption key, then unauthorized access is prevented, but processing complexity increases

Engineering Contradiction:
Improveunauthorized access preventionVSAvoidencryption processing
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system implements self-service encryption and decryption capabilities where the electronic device performs cryptographic operations autonomously using stored keys. The encryption unit automatically encrypts biometric data before storage, and the decryption unit automatically decrypts data during authentication without requiring external intervention. This self-service approach prevents unauthorized access while managing processing complexity through automated routines.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS9942226B2NFC package for storing biometric information and electronic device
Publication Date: 2018.04.10 SAMSUNG ELECTRONICS CO LTD
  • US9942226B2 patent drawing
  • US9942226B2 patent drawing
  • US9942226B2 patent drawing

AI summary

An electronic device includes a biometric sensor configured to generate biometric data by sensing a biometric characteristic and to encrypt the biometric a near field communication (NFC) controller configured to perform a near field communication, and a secure storage device coupled to the NFC controller, and configured to receive the encrypted biometric data from the biometric sensor through an internal communications channel, which may include an application processor and the NFC controller, and to store the biometric data by decrypting the encrypted biometric data.