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A Blockchain-Based End-to-End Data Protection Model for Personal Health Records Sharing: A Fully Homomorphic

Fausto Neri da Silva Vanin1, Lucas Micol Policarpo1, Rodrigo da Rosa Righi1

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Summary
This summary is machine-generated.

This study introduces a secure system for personal health records (PHR) using distributed networks and fully homomorphic encryption (FHE). This enhances data privacy and interoperability in e-health.

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Area of Science:

  • Health Informatics
  • Cybersecurity
  • Distributed Systems

Background:

  • Centralized personal health record (PHR) systems face significant security vulnerabilities.
  • Existing solutions struggle with secure data sharing and individual data management.
  • Need for enhanced privacy and interoperability in electronic health records.

Purpose of the Study:

  • To propose a novel architectural model for secure and interoperable PHR management.
  • To leverage distributed network technologies and fully homomorphic encryption (FHE) for enhanced data protection.
  • To introduce new modules for segregated responsibilities and end-to-end encryption in health data handling.

Main Methods:

  • Utilized the InterPlanetary File System (IPFS) and blockchain for separate storage of PHR data and metadata.
  • Implemented a data steward and shared data vault model for managing encryption and access control.
  • Integrated fully homomorphic encryption (FHE) to enable computations on encrypted health data.
  • Evaluated the system's performance and storage efficiency using a large COVID-19 registry dataset.

Main Results:

  • Demonstrated mitigation of personal privacy risks by minimizing the use of unencrypted health data.
  • Achieved improved semantic interoperability among health institutions through standardized PHR on distributed networks.
  • Validated the model's effectiveness with a database of 1.3 million COVID-19 records.
  • Showcased the potential of combining FHE with distributed networks for e-health.

Conclusions:

  • The proposed architecture offers a robust solution for secure and private management of personal health records.
  • Integration of FHE with distributed networks represents a significant advancement in e-health paradigms.
  • The model enhances individual control over health data, promoting privacy and secure sharing.