Blockchain and Cryptography Overview (Coursera)

By the end of this course, you will be able to:

1. Describe the purpose of hash functions and public key cryptography in blockchain security.
2. Explore the fundamentals of blockchain technology, including blocks, chains, and network security, and identify and encounter basic threats.
3. Analyze the security of Proof of Work (PoW) and Proof of Stake (PoS) and alternative consensus methods.

The courses in this specialization are designed for individuals interested in blockchain security and cybersecurity and are suitable for both coding and non-coding professionals.
This course is part of the Certified Blockchain Security Professional (CBSP) Exam Prep Specialization.

What you'll learn

• Describe the purpose of hash functions and public key cryptography in blockchain security.
• Explore the fundamentals of blockchain technology, including blocks, chains, and network security, and identify and encounter basic threats.
• Analyze the security of Proof of Work (PoW), Proof of Stake (PoS), and alternative consensus methods.

Syllabus

Cryptography and Blockchain Basics
This module will cover the cryptography basics of blockchain, like hash functions and digital signatures using public key cryptography. The module also introduces you to the core components and advantages of blockchain and the assumptions and challenges in blockchain security, such as the vulnerability of losing private keys and different types of wallets. Finally, you will also learn about the factors influencing blockchain risk appraisal.

Consensus: Backbone of Blockchain Technology
In this module, you will learn about blockchain fundamentals, its promises, and the security essentials. From understanding the basics to recognizing potential threats, this module provides a concise overview, setting the stage for deeper insights into blockchain technology.

Basics of Blockchain Security and Smart Contracts
In this module, you will be introduced to the fundamentals of blockchain security and smart contracts. You will gain insight into key concepts such as user safety, node and network safety, and an overview of smart contracts. The module also delves into the security aspects of smart contracts and the process of auditing them.

Peer-Reviewed Assignment
This is a peer-review assignment based on the concepts taught in the Blockchain and Cryptography Overview course. In this assignment, you will be able to explain the various consensus mechanisms and highlight the security measures that can be implemented to protect the blockchain networks.