The privacy protection mechanism of Hyperledger Fabric and its application in supply chain finance

Abstract

Blockchain technology ensures that data is tamper-proof, traceable, and trustworthy. This article introduces a wellknown blockchain technology implementation-Hyperledger Fabric. The basic framework and privacy protection mechanisms of Hyperledger Fabric such as certificate authority, channel, Private Data Collection, etc. are described. As an example, a specific business scenario of supply chain finance is figured out. And accordingly, some design details about how to apply these privacy protection mechanisms are described.

A Permissioned Blockchain System to Reduce Peak Demand in Residential Communities via Energy Trading: A Real-World Case Study

“…The proposed system is developed using HLF, which is a permissioned blockchain development platform that enables the peers within a blockchain network to be segregated into private channels [7]. Each channel is assigned a separate ledger and smart contracts, where the data on the ledger is kept hidden from other channels, thus leading to increased data privacy for the peers [49]. In this paper, each community is designated its own channel, as can be seen in the architectural block diagram of the proposed system in Figure 8.…”

“…Pi B+, respectively. Each node uses the MODBUS protocol to actuate the DERs associated with it, and uses a REST API to access functions of the smart contract [49].…”

Leveraging the Hyperledger Fabric for Enhancing the Efficacy of Clinical Decision Support Systems

“…With the Hyperledger Fabric framework, the patient's primary care provider and the specialist provider can form a channel with smart contract installed and exchange patient information, which is immutable. As all the ledgers in a given channel are identical, entire patient information is present with both the providers in the same sequential manner and the safety of the information is ensured (23,24). This can help in enhanced performance of CDSS, reducing cognitive burden on providers and most importantly improving patient outcomes.…”

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