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Mastering Blockchain.. - Third Edition

You're reading from Mastering Blockchain.. - Third Edition

Product type Book

Published in Aug 2020

Publisher Packt

ISBN-13 9781839213199

Pages 816 pages

Edition 3rd Edition

Languages

Concepts

Author (1):

Imran Bashir

Table of Contents (24) Chapters

Preface

1. Blockchain 101

2. Decentralization

3. Symmetric Cryptography

4. Public Key Cryptography

5. Consensus Algorithms

6. Introducing Bitcoin

7. The Bitcoin Network and Payments

8. Bitcoin Clients and APIs

9. Alternative Coins

10. Smart Contracts

11. Ethereum 101

12. Further Ethereum

13. Ethereum Development Environment

14. Development Tools and Frameworks

15. Introducing Web3

16. Serenity

17. Hyperledger

18. Tokenization

19. Blockchain – Outside of Currencies

20. Enterprise Blockchain

21. Scalability and Other Challenges

22. Current Landscape and What's Next

23. Index

Deploying smart contracts

Smart contracts may or may not be deployed on a blockchain, but it makes sense to do so on a blockchain due to the security and decentralized consensus mechanism provided by the blockchain. Ethereum is an example of a blockchain platform that natively supports the development and deployment of smart contracts. We will cover Ethereum in more detail later in this book, in Chapter 11, Ethereum 101. Smart contracts on an Ethereum blockchain are typically part of a broader DApp.

In comparison, in a Bitcoin blockchain, the transaction timelocks, such as the nLocktime field, the CHECKLOCKTIMEVERIFY (CLTV), and the CHECKSEQUENCEVERIFY script operator in the Bitcoin transaction, can be seen as an enabler of a simple version of a smart contract. These timelocks enable a transaction to be locked until a specified time or until a number of blocks, thus enforcing a basic contract that a certain transaction can only be unlocked if certain conditions (elapsed time...

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Authors (1)

Imran Bashir

Imran Bashir has an M.Sc. in Information Security from Royal Holloway, University of London, and has a background in software development, solution architecture, infrastructure management, and IT service management. He is also a member of the Institute of Electrical and Electronics Engineers (IEEE) and the British Computer Society (BCS). Imran has extensive experience in both the public and financial sectors, having worked on large-scale IT projects in the public sector before moving to the financial services industry. Since then, he has worked in various technical roles for different financial companies in Europe's financial capital, London.

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