You're reading from Blockchain with Hyperledger Fabric Build decentralized applications using Hyperledger Fabric 2

Product type Paperback

Published in Nov 2020

Publisher Packt

ISBN-13 9781839218750

Length 756 pages

Edition 2nd Edition

Languages

Java

Tools

Blockchain

Concepts

Blockchain

Authors (7):

Salman A. Baset

Venkatraman Ramakrishna

Salman Baset

Anthony O'Dowd

Petr Novotny

Nitin Gaur

Luc Desrosiers

+3 more

View More author details

Table of Contents (18) Chapters

Preface

1. Blockchain – An Enterprise and Industry Perspective

2. Exploring Hyperledger Fabric FREE CHAPTER

3. Business Networks

4. Setting the Stage with a Business Scenario

5. Designing Smart Contract Transactions and Ledger Data Structures

6. Developing Smart Contracts

7. Developing Applications

8. Advanced Topics for Developing Smart Contracts and Applications

9. Network Operation and Distributed Application Building

10. Enterprise Design Patterns and Considerations

11. Agility in a Blockchain Network

12. Governance – A Necessary Evil of Regulated Industries

13. Life in a Blockchain Network

14. Hyperledger Fabric Security

15. Blockchain's Future, Protocol Commercialization, and Challenges Ahead

16. Another Book You May Enjoy

17. 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...