IBS-ECDHE: A blockchain-enhanced lightweight protocol for secure cloud-IoT in biomedical HCPS

Area of Science:

• Biomedical Engineering
• Cybersecurity
• Computer Science

Background:

• Cloud-Internet-of-Things (CIoT) adoption in biomedical human-cyber-physical systems (HCPS) presents security, privacy, and scalability challenges.
• Existing security measures may not adequately address the unique demands of healthcare data exchange.

Purpose of the Study:

• To propose a novel Identity-Based Signatures with Elliptic Curve Diffie-Hellman Ephemeral (IBS-ECDHE) framework for securing biomedical HCPS.
• To enhance data security, privacy, and scalability in healthcare environments utilizing CIoT.

Main Methods:

• Integration of Identity-Based Signatures (IBS) and Elliptic Curve Diffie-Hellman Ephemeral (ECDHE) key exchange.
• Leveraging blockchain technology for decentralized identity management and access control.
• Implementation of smart contracts for automated key management and privacy enforcement.

Main Results:

• IBS-ECDHE framework demonstrated significant reductions in authentication time (up to 76%) and message size (40%) compared to traditional Public Key Infrastructure (PKI) systems.
• Achieved lower blockchain transaction latency and improved scalability through parallel processing (37% latency reduction).
• Ensured robust security, privacy, and data integrity for sensitive biomedical data.

Conclusions:

• The proposed IBS-ECDHE framework offers a robust, lightweight, and efficient solution for securing biomedical HCPS.
• Blockchain integration provides decentralized identity management and enhances data integrity for real-time biomedical data exchange.
• The framework is highly suitable for next-generation biomedical applications requiring advanced security and privacy.