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Blockchain with Hyperledger Fabric

Blockchain with Hyperledger Fabric - Second Edition

By : Nitin Gaur, Salman Baset, Anthony O'Dowd, Novotny, Luc Desrosiers, Ramakrishna, Baset
4.6 (8)
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Blockchain with Hyperledger Fabric

Blockchain with Hyperledger Fabric

4.6 (8)
By: Nitin Gaur, Salman Baset, Anthony O'Dowd, Novotny, Luc Desrosiers, Ramakrishna, Baset

Overview of this book

Blockchain with Hyperledger Fabric - Second Edition is a refreshed and extended version of the successful book on practical Hyperledger Fabric blockchain development. This edition includes many new chapters, alongside comprehensive updates and additions to the existing ones. Entirely reworked for Hyperledger Fabric version 2, this edition will bring you right up to date with the latest in blockchain. Using a real-world Trade Finance and Logistics example, with working code available on GitHub, you’ll really understand both how and why Hyperledger Fabric can be used to maximum effect. This book is your comprehensive guide and reference to explore and build blockchain networks using Hyperledger Fabric version 2. This edition of the book begins by outlining the evolution of blockchain, including an overview of relevant blockchain technologies. Starting from first principles, you’ll learn how to design and operate a permissioned blockchain network based on Hyperledger Fabric version 2. You will learn how to configure the main architectural components of a permissioned blockchain network including Peers, Orderers, Certificate Authorities, Channels, and Policies. You’ll then learn how to design, develop, package, and deploy smart contracts, and how they are subsequently used by applications. This edition also contains chapters on DevOps, blockchain governance, and security, making this your go-to book for Hyperledger Fabric version 2.
Table of Contents (18 chapters)
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Index

Access control

Before we delve into the implementation of contract functions, we need to first define our access control mechanism.

A key feature of a secure and permissioned blockchain is access control. The access control mechanism is typically implemented within the contract and thus enforced during transaction processing on multiple endorsing peers, and the result validated through transaction consensus. Additional access control mechanisms can be inbuilt into application layers interacting with the contract.

In Fabric, the membership services provider (MSP) plays a pivotal role in enabling access control. Each organization of a Fabric network can have one or more MSP providers. The MSP is implemented as a Fabric certificate authority (CA). More information on Fabric CA, including its documentation, is available at https://hyperledger-fabric-ca.readthedocs.io/.

Fabric CA issues enrollment certificates (ECerts) for network users. The ECert represents the identity of...

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