In this chapter, we explored the possibility of exploiting the blockchain as an attack vector. We saw that not only data of a different nature can be stored within the blockchain, but that this possibility also exposes unaware users to responsibility and liability. In similar cases, the immutability of the ledger can turn into a disadvantage, rather than an advantage, and we have seen what solutions can be adopted to eliminate illicit data from local nodes. We then dealt with some topics still considered controversial, such as the possibility of exploiting the blockchain to preserve the anonymity of users and transactions, and to guarantee users protection from possible identity theft attacks. Finally, we saw how it is possible to spread malware by exploiting the architectural peculiarities of the blockchain, making it extremely difficult for antivirus software to detect...
Securing Blockchain Networks like Ethereum and Hyperledger Fabric
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Securing Blockchain Networks like Ethereum and Hyperledger Fabric
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Overview of this book
Blockchain adoption has extended from niche research to everyday usage. However, despite the blockchain revolution, one of the key challenges faced in blockchain development is maintaining security, and this book will demonstrate the techniques for doing this.
You’ll start with blockchain basics and explore various blockchain attacks on user wallets, and denial of service and pool mining attacks. Next, you’ll learn cryptography concepts, consensus algorithms in blockchain security, and design principles while understanding and deploying security implementation guidelines. You’ll not only cover architectural considerations, but also work on system and network security and operational configurations for your Ethereum and Hyperledger Fabric network. You’ll later implement security at each level of blockchain app development, understanding how to secure various phases of a blockchain app using an example-based approach. You’ll gradually learn to securely implement and develop decentralized apps, and follow deployment best practices. Finally, you’ll explore the architectural components of Hyperledger Fabric, and how they can be configured to build secure private blockchain networks.
By the end of this book, you’ll have learned blockchain security concepts and techniques that you can implement in real blockchain production environments.
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Current Title:
Securing Blockchain Networks like Ethereum and Hyperledger Fabric
Table of Contents (15 chapters)
Preface
Section 1: Blockchain Security Core Concepts
Free Chapter
Introducing Blockchain Security and Attack Vectors
Cryptography Essentials
Blockchain Security Assumptions
Section 2: Architecting Blockchain Security
Trustless Blockchain Networks
Securing Hyperledger Fabric
Section 3: Securing Decentralized Apps and Smart Contracts
Decentralized Apps and Smart Contracts
Preventing Threats for DApps and Smart Contracts
Section 4: Preserving Data Integrity and Privacy
Exploiting Blockchain as an Attack Vector
Analyzing Privacy and GDPR Compliance Issues
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