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Building Blockchain Projects

You're reading from  Building Blockchain Projects

Product type Book
Published in Apr 2017
Publisher Packt
ISBN-13 9781787122147
Pages 266 pages
Edition 1st Edition
Languages
Author (1):
Narayan Prusty Narayan Prusty
Profile icon Narayan Prusty

Table of Contents (16) Chapters

Title Page
Credits
About the Author
About the Reviewers
www.PacktPub.com
Customer Feedback
Preface
1. Understanding Decentralized Applications 2. Understanding How Ethereum Works 3. Writing Smart Contracts 4. Getting Started with web3.js 5. Building a Wallet Service 6. Building a Smart Contract Deployment Platform 7. Building a Betting App 8. Building Enterprise Level Smart Contracts 9. Building a Consortium Blockchain

Whisper and Swarm


Whisper and Swarm are a decentralized communication protocol and a decentralized storage platform respectively, being developed by Ethereum developers. Whisper is a decentralized communication protocol, whereas Swarm is a decentralized filesystem.

Whisper lets nodes in the network communicate with each other. It supports broadcasting, user-to-user, encrypted messages, and so on. It's not designed to transfer bulk data. You can learn more about Whisper at https://github.com/ethereum/wiki/wiki/Whisper, and you can see a code example overview at https://github.com/ethereum/wiki/wiki/Whisper-Overview.

Swarm is similar to Filecoin, that is, it differs mostly in terms of technicalities and incentives. Filecoin doesn't penalize stores, whereas Swarm penalizes stores; therefore, this increases the file availability further. You must be wondering how incentive works in swarm. Does it have an internal currency? Actually, Swarm doesn't have an internal currency, rather it uses ether...

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