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

Types of DDoS attacks


DDoS attacks are carried out in several ways. However, attackers select one of them based on different factors, such as target difficulty, financial capability, anonymity, priority, and other factors. It does not take much technical expertise to run the DDoS attack program and launch it. There are mainly three types of attack, categorized as follows:

  • Attacks targeting network resources
  • Attacks targeting server resources
  • Attacks targeting application resources

Attacks targeting network resources

These are attack campaigns in which it is planned to consume the network resources of the target system. In this attack, network bandwidth gets completely consumed by flooding. The following are several types of flooding attacks.

User datagram protocol (UDP) flood

 UDP is a protocol embedded in the IP packet for socket-level communication between two devices. A UDP flood attack does not exploit any specific vulnerability of the target system, but rather it simply disrupts the normal...