Book Image

Blockchain Development with Hyperledger

By : Salman A. Baset, Luc Desrosiers, Nitin Gaur, Petr Novotny, Anthony O'Dowd, Venkatraman Ramakrishna, Weimin Sun, Xun (Brian) Wu
Book Image

Blockchain Development with Hyperledger

By: Salman A. Baset, Luc Desrosiers, Nitin Gaur, Petr Novotny, Anthony O'Dowd, Venkatraman Ramakrishna, Weimin Sun, Xun (Brian) Wu

Overview of this book

Blockchain and Hyperledger are open source technologies that power the development of decentralized applications. This Learning Path is your helpful reference for exploring and building blockchain networks using Ethereum, Hyperledger Fabric, and Hyperledger Composer. Blockchain Development with Hyperledger will start off by giving you an overview of blockchain and demonstrating how you can set up an Ethereum development environment for developing, packaging, building, and testing campaign-decentralized applications. You'll then explore the de facto language Solidity, which you can use to develop decentralized applications in Ethereum. Following this, you'll be able to configure Hyperledger Fabric and use it to build private blockchain networks and applications that connect to them. Toward the later chapters, you'll learn how to design and launch a network, and even implement smart contracts in chain code. By the end of this Learning Path, you'll be able to build and deploy your own decentralized applications by addressing the key pain points encountered in the blockchain life cycle. This Learning Path includes content from the following Packt products: • Blockchain Quick Start Guide by Xun (Brian) Wu and Weimin Sun • Hands-On Blockchain with Hyperledger by Nitin Gaur et al.
Table of Contents (25 chapters)
Title Page
Copyright
About Packt
Contributors
Preface
Index

Hyperledger Fabric architecture 


The Hyperledger Fabric architecture can be illustrated as follows:

Hyperledger Fabric architecture

Fabric CA or membership service provider

The membership service provider (MSP) is responsible for creating digital identities for peers and users of the organization. The identities of peers must be configured in an existing network in order for a new entity to participate in the channel.

Fabric CA is an implementation of the MSP and provides a mechanism for registering users from a network member and issuing them digital identities (X.509 certificates). Fabric CA typically runs inside a Docker container. Each Fabric CA is configured with a backend database (the default being SQLite, with other options, such as PostgreSQL or MySQL) which stores the registered identities, as well as their X.509 certificates. Fabric CA does not store the private keys of the users.

Peer

A peer is an entity that participates in a Hyperledger Fabric network. Its identity is determined...