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Related Experiment Video

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An Application for Pairing with Wearable Devices to Monitor Personal Health Status
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SHIELD: Blockchain-Enabled Lightweight Authentication Framework for Secure Wearable Health Monitoring in IoMT

Chao Wang, Xingsi Xue, Jing Wang

    IEEE Journal of Biomedical and Health Informatics
    |April 15, 2026
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    Summary

    This study introduces SHIELD, a blockchain-based authentication system for Internet of Medical Things (IoMT) devices. It offers enhanced security and efficiency for wearable health tech, improving data protection.

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    Area of Science:

    • Computer Science
    • Cybersecurity
    • Health Informatics

    Background:

    • Internet of Medical Things (IoMT) devices generate vast amounts of sensitive health data.
    • Existing centralized authentication methods in IoMT face security, privacy, and scalability challenges.
    • Resource constraints of wearable sensors and portable diagnostic equipment necessitate lightweight solutions.

    Purpose of the Study:

    • To present a secure, lightweight, blockchain-based authentication framework for resource-constrained consumer health devices.
    • To address the limitations of traditional authentication in IoMT environments.
    • To ensure secure data management and mutual authentication in healthcare IoMT.

    Main Methods:

    • Developed Secure Healthcare IoMT Enhanced Lightweight Device Authentication (SHIELD) framework.
    • Utilized blockchain's decentralized and immutable properties.
    • Integrated efficient elliptic curve cryptography for identity verification and mutual authentication.

    Main Results:

    • SHIELD satisfies twelve critical security properties, including resistance to common attacks and ensuring forward secrecy.
    • Achieved a 31% improvement in authentication latency (9.837 ms) compared to existing schemes.
    • Demonstrated low communication overhead (1384 bits) and practical deployment feasibility with minimal operational costs.

    Conclusions:

    • SHIELD provides a robust and efficient authentication solution for resource-constrained IoMT devices.
    • The blockchain-based approach enhances security and privacy in consumer health monitoring.
    • The framework is suitable for real-time health applications due to its performance and low latency.