Book Image

Hands-On Cybersecurity with Blockchain

By : Rajneesh Gupta
Book Image

Hands-On Cybersecurity with Blockchain

By: Rajneesh Gupta

Overview of this book

Blockchain technology is being welcomed as one of the most revolutionary and impactful innovations of today. Blockchain technology was first identified in the world’s most popular digital currency, Bitcoin, but has now changed the outlook of several organizations and empowered them to use it even for storage and transfer of value. This book will start by introducing you to the common cyberthreat landscape and common attacks such as malware, phishing, insider threats, and DDoS. The next set of chapters will help you to understand the workings of Blockchain technology, Ethereum and Hyperledger architecture and how they fit into the cybersecurity ecosystem. These chapters will also help you to write your first distributed application on Ethereum Blockchain and the Hyperledger Fabric framework. Later, you will learn about the security triad and its adaptation with Blockchain. The last set of chapters will take you through the core concepts of cybersecurity, such as DDoS protection, PKI-based identity, 2FA, and DNS security. You will learn how Blockchain plays a crucial role in transforming cybersecurity solutions. Toward the end of the book, you will also encounter some real-world deployment examples of Blockchain in security cases, and also understand the short-term challenges and future of cybersecurity with Blockchain.
Table of Contents (17 chapters)
Title Page
About Packt
Contributors
Preface
Index

Challenges of the existing PKI model


The challenges of the existing PKI model are as follows:

  • Problem 1 – the need for additional security: According to a report from the Ponemon Institute's 2016 research, 62% of businesses have deployed cloud-based applications using PKI, with an increase of 50% in 2015. If the central certificate repository gets compromised, it will lead to a massive data breach and account theft. Organizations tend to use an additional layer of security such as hardware security modules (HSMs) to secure their PKIs. HSMs are deployed to protect PKIs for the most critical root and for issuing CA private keys. Organizations are opting for multi-factor authentication for administrators and HSM use.
  • Problem 2 – central authority: In the current state of the internet, a central authority (root authority) is responsible for managing DNS requests and responses (root authority), X.509 certificates, and much more. Therefore, all internet-connected devices and systems have to trust...