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Related Concept Videos

Issues And Trends In Healthcare Delivery System01:29

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Related Experiment Video

Updated: Oct 11, 2025

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Improving the data access control using blockchain for healthcare domain.

Olaosebikan Tahir Yinka1, Su-Cheng Haw1, Timothy Tzen Vun Yap1

  • 1Faculty of Computing & Informatics, Multimedia University, Cyberjaya, Selangor, 63100, Malaysia.

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|December 6, 2021
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Summary

This study introduces a novel blockchain system for secure big data access in healthcare. The proposed model enhances data privacy and management, offering improved throughput and lower latency compared to existing methods.

Keywords:
Access Control.BlockchainChaincodeDirected Acyclic GraphHealthcare datasets

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Area of Science:

  • Computer Science
  • Information Security
  • Healthcare Informatics

Background:

  • Data privacy concerns impede big data adoption across industries.
  • Traditional databases lack scalability for robust identity and access management.
  • Big data management solutions are crucial for addressing these challenges.

Purpose of the Study:

  • To evaluate cryptography and blockchain for big data identity and access control in healthcare.
  • To propose a privacy-preserving, decentralized data access and sharing system using blockchain.
  • To design a blockchain framework addressing privacy issues in decentralized systems.

Main Methods:

  • Investigated strengths and weaknesses of cryptography and blockchain for identity management.
  • Developed a decentralized data access and sharing system leveraging blockchain technology.
  • Implemented a public key infrastructure model with elliptic curve and signcryption algorithms.

Main Results:

  • The proposed blockchain model demonstrated higher throughput and lower latency.
  • Performance was evaluated on metrics including throughput, latency, scalability, and security.
  • The model excelled under varying workloads up to 10,000 transactions with 5000 patients and 500,000 observations.

Conclusions:

  • Blockchain technology offers significant potential for secure data management and access.
  • The proposed system effectively addresses privacy concerns in decentralized big data sharing.
  • This research highlights blockchain's importance for individuals, companies, and governments.