Enterprise Data Sharing with Privacy-Preserved Based on Hyperledger Fabric Blockchain in IIOT's Application.

Area of Science:

• Computer Science
• Data Security
• Blockchain Technology

Background:

• The Industrial Internet of Things (IIoT) generates vast amounts of high-volume, small-size data.
• Traditional data sharing methods face risks like single-node failure and vulnerabilities to data theft from third parties or cloud storage.
• Managing and protecting sensitive private data in IIoT environments is a critical challenge for enterprises.

Purpose of the Study:

• To propose a secure and efficient data transfer scheme for enterprises in the Industrial Internet of Things (IIoT).
• To address the challenges of data management and protection in IIoT data sharing.
• To leverage blockchain and distributed storage for enhanced data security and transfer performance.

Main Methods:

• Utilized Hyperledger Fabric blockchain for storing a Keyword-index table and InterPlanetary File System (IPFS) for encrypted raw data storage.
• Implemented Fabric's channel mechanism and custom Chaincode for privacy protection and efficient data transmission.
• Employed the Elliptic Curve Digital Signature Algorithm (ECDSA) to ensure data integrity.

Main Results:

• The proposed scheme demonstrates superior data transfer performance in the IPFS network compared to traditional networks, with speeds significantly faster for small file transfers.
• IPFS network achieved 19.23 mb/s transmission speed and 0.26s latency for 5MB files, outperforming TCP/IP by nearly 4x.
• The solution achieved an average throughput of 110 tps, with a minimum of 101 tps, outperforming existing blockchain systems in throughput, latency, and overhead.

Conclusions:

• The Hyperledger Fabric and IPFS-based scheme offers a robust solution for secure and efficient data transfer in the IIoT.
• The approach effectively mitigates risks associated with traditional data sharing methods, enhancing enterprise data protection.
• The scheme provides significant performance advantages, particularly for the transfer of small data files common in IIoT applications.