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Issues And Trends In Healthcare Delivery System01:29

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Related Experiment Video

Updated: Oct 12, 2025

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Authorized Shared Electronic Medical Record System with Proxy Re-Encryption and Blockchain Technology.

Weizhe Chen1, Shunzhi Zhu1, Jianmin Li1

  • 1School of Computer and Information Engineering, Xiamen University of Technology, Xiamen 361024, China.

Sensors (Basel, Switzerland)
|November 27, 2021
PubMed
Summary

This study introduces a secure electronic medical record (EMR) system using consortium blockchain and proxy re-encryption. It enhances data privacy, access control, and security for shared healthcare records.

Keywords:
BCoTEMR sharingIoTconsortium blockchainprivacy protectionproxy re-encryption

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Area of Science:

  • Health Informatics
  • Cybersecurity
  • Distributed Ledger Technology

Background:

  • The increasing adoption of 5G networks in healthcare necessitates advanced solutions for paperless operations and shared electronic medical record (EMR) systems.
  • Traditional centralized EMR systems face significant data privacy and security risks due to potential storage vulnerabilities.
  • Ensuring the security and integrity of sensitive patient data during sharing and transmission is a critical challenge in modern healthcare.

Purpose of the Study:

  • To propose and evaluate a novel electronic medical record system designed for secure data sharing.
  • To address the limitations of traditional EMR systems by leveraging blockchain and proxy re-encryption technologies.
  • To enhance privacy protection, access control, and overall data security in healthcare information management.

Main Methods:

  • Development of a healthcare system utilizing a consortium blockchain for tamper-proof and traceable data storage.
  • Integration of proxy re-encryption technology to enable secure sharing and transmission of sensitive EMR data.
  • Implementation of attribute-based access control and automated blockchain chaincode execution for fine-grained data access and security.

Main Results:

  • The proposed system effectively secures electronic medical records through blockchain's inherent immutability and traceability.
  • Proxy re-encryption ensures the safe sharing and transmission of sensitive patient information.
  • Attribute-based access control provides granular control over data access, significantly improving system security compared to traditional cloud-based EMRs.

Conclusions:

  • The consortium blockchain and proxy re-encryption based EMR system offers a robust solution for secure healthcare data management.
  • This approach significantly enhances privacy protection, access control, and data security for shared electronic medical records.
  • The system demonstrates superior advantages over existing cloud-based EMR solutions in terms of security and privacy.