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Blockchain for Enterprise

You're reading from   Blockchain for Enterprise Build scalable blockchain applications with privacy, interoperability, and permissioned features

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Product type Paperback
Published in Sep 2018
Publisher Packt
ISBN-13 9781788479745
Length 220 pages
Edition 1st Edition
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Author (1):
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Narayan Prusty Narayan Prusty
Author Profile Icon Narayan Prusty
Narayan Prusty
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Table of Contents (10) Chapters Close

Preface 1. What are Decentralized Applications? FREE CHAPTER 2. Building Blockchain Using Quorum 3. Writing Smart Contracts 4. Getting Started with web3.js 5. Building Interoperable Blockchains 6. Building Quorum as a Service Platform 7. Building a DApp for Digitizing Medical Records 8. Building a Payment Solution for Banks 9. Other Books You May Enjoy

What are Ethereum transactions?


A transaction is a data package to transfer ether from an account to another account or contract, invoke methods of a contract, or deploy a new contract. A transaction is using Elliptic Curve Digital Signature Algorithm (ECDSA), which is a digital signature algorithm based on ECC. A transaction contains a signature identifying the sender and proving their intention, the amount of ether to transfer, the maximum number of computational steps the transaction execution is allowed to take (called a gas limit), and the cost the sender of the transaction is willing to pay for each computational step (called the gas price). The product of the gas used and the gas price is called the transaction fees.

In permissioned networks, ether is valueless. In a Quorum network, ether is supplied in the genesis block and is not generated dynamically at runtime. You need to supply ether in the genesis block. You need to provide gas to prevent attacks, such as infinite loops. Ether...

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