You're reading from The Essential Guide to Web3 Develop, deploy, and manage distributed applications on the Ethereum network

Product type Paperback

Published in Nov 2023

Publisher Packt

ISBN-13 9781801813471

Length 366 pages

Edition 1st Edition

Tools

Ethereum

Concepts

Blockchain

Author (1):

Vijay Krishnan

View More author details

Table of Contents (25) Chapters

Preface

1. Part 1 – Introduction to Web3 FREE CHAPTER

2. Chapter 1: Fundamentals of Blockchain and Web3

3. Chapter 2: Getting Started With Ethereum

4. Chapter 3: Your First Ethereum Transaction

5. Part 2 – All about Smart Contracts

6. Chapter 4: Introduction to Smart Contracts

7. Chapter 5: Creating and Deploying Your First Smart Contract

8. Chapter 6: Smart Contract Security and Access Controls

9. Part 3 – Writing Your DApps for Web3

10. Chapter 7: Developer Tools and Libraries for Web3 Development

11. Chapter 8: Writing and Testing Your First dApp on Web3

12. Part 4 – Fungible Tokens

13. Chapter 9: Introduction to Tokenization

14. Chapter 10: Creating Your First Token

15. Part 5 – Non-Fungible Tokens

16. Chapter 11: Non-Fungible Token Standards

17. Chapter 12: Creating Your First Non-Fungible Token

18. Part 6 – Web3 Advanced Topics

19. Chapter 13: Understanding Oracles

20. Chapter 14: Zero-Knowledge Proofs and Zero-Knowledge EVMs

21. Chapter 15: L2 Networks and Rollups

22. Chapter 16: Decentralized Autonomous Organizations – Overview

23. Index

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Understanding smart contract security

As a beginner in Solidity and smart contract development, it is crucial to understand and follow basic security requirements. Smart contracts are self-executing agreements with the terms directly written into code, and once deployed on the blockchain, they are immutable. Ensuring the security of smart contracts is vital to prevent hacks, exploits, and loss of funds.

Several high-profile hacks and failures have occurred in the world of smart contracts, primarily due to vulnerabilities in the Solidity code. Here are some notable incidents:

The DAO Hack (2016): The Decentralized Autonomous Organization (DAO) was a decentralized venture capital fund built on Ethereum. In June 2016, an attacker exploited a reentrancy vulnerability in the DAO’s smart contract, siphoning about 3.6 million ether (worth around $50 million at that time). This ultimately led to a controversial hard fork, creating Ethereum Classic.
Parity Wallet Hack...