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Blockchain and Cryptography Overview

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Blockchain and Cryptography Overview

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Gain insight into a topic and learn the fundamentals.
Beginner level

Recommended experience

7 hours to complete
Flexible schedule
Learn at your own pace

Gain insight into a topic and learn the fundamentals.
Beginner level

Recommended experience

7 hours to complete
Flexible schedule
Learn at your own pace

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.

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Assessments

8 assignmentsΒΉ

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Taught in English

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This course is part of the Certified Blockchain Security Professional (CBSP) Exam Prep Specialization
When you enroll in this course, you'll also be enrolled in this Specialization.
  • Learn new concepts from industry experts
  • Gain a foundational understanding of a subject or tool
  • Develop job-relevant skills with hands-on projects
  • Earn a shareable career certificate

There are 4 modules in this course

The Blockchain and Cryptography Overview course is a part of the Certified Blockchain Security Professional (CBSP) Exam Prep Specialization and introduces you to fundamental cryptographic principles. You will gain insight into concepts such as hash functions in blockchain, core components and advantages of blockchain, and assumptions and challenges in blockchain security. You will also learn about core blockchain concepts, highlight security measures against prevalent threats, and comprehend consensus security challenges while exploring well-known algorithms like Proof of Work and Proof of Stake.

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 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.

What's included

9 videos3 readings3 assignments1 discussion prompt

9 videosβ€’Total 42 minutes
  • Specialization introductionβ€’4 minutes
  • Course Introductionβ€’3 minutes
  • Basics of cryptography for blockchain β€’5 minutes
  • Role of hash functions in blockchain β€’4 minutes
  • Introduction to blockchain β€’4 minutes
  • Core components and advantages of blockchain β€’5 minutes
  • Assumptions and challenges in blockchain security β€’6 minutes
  • Factors influencing blockchain risk appraisal: Part 1β€’6 minutes
  • Factors influencing blockchain risk appraisal: Part 2β€’5 minutes
3 readingsβ€’Total 13 minutes
  • Specialization Overviewβ€’6 minutes
  • Course Overviewβ€’4 minutes
  • Exploring the world of blockchain and cryptographyβ€’3 minutes
3 assignmentsβ€’Total 44 minutes
  • Practice Quiz: Cryptography: Overview β€’8 minutes
  • Practice Quiz: Blockchain risk and securityβ€’6 minutes
  • Graded Quiz: Cryptography and Blockchain Basics β€’30 minutes
1 discussion promptβ€’Total 15 minutes
  • Significance of hash functionsβ€’15 minutes

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.

What's included

7 videos1 reading3 assignments1 discussion prompt

7 videosβ€’Total 35 minutes
  • Blockchain consensus and Byzantine Generals Problem (BGP)β€’4 minutes
  • Proof of Work (PoW) consensus and BGPβ€’5 minutes
  • Proof of Work (PoW) security and attacksβ€’7 minutes
  • Proof of Stake (PoS) consensus and BGPβ€’5 minutes
  • Proof of Stake securityβ€’5 minutes
  • Proof of Stake attacksβ€’4 minutes
  • Other consensus algorithmsβ€’5 minutes
1 readingβ€’Total 3 minutes
  • Explore advanced consensus mechanismsβ€’3 minutes
3 assignmentsβ€’Total 44 minutes
  • Practice Quiz: Proof of Work (PoW) consensus and security β€’6 minutes
  • Practice Quiz: Proof of Stake (PoS) consensus and securityβ€’8 minutes
  • Graded Quiz: Consensus: Backbone of Blockchain Technology β€’30 minutes
1 discussion promptβ€’Total 15 minutes
  • Proof of Work and Proof of Stakeβ€’15 minutes

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.

What's included

6 videos1 reading2 assignments1 discussion prompt

6 videosβ€’Total 28 minutes
  • User safetyβ€’5 minutes
  • Node and network safetyβ€’4 minutes
  • Smart contracts: Overviewβ€’4 minutes
  • Security aspects of smart contracts: Part 1β€’4 minutes
  • Security aspects of smart contracts: Part 2β€’4 minutes
  • Auditing smart contractsβ€’6 minutes
1 readingβ€’Total 3 minutes
  • Security practices of smart contractsβ€’3 minutes
2 assignmentsβ€’Total 42 minutes
  • Practice Quiz: Fundamentals of blockchain and smart contract security β€’12 minutes
  • Graded Quiz: Basics of Blockchain Security and Smart Contracts β€’30 minutes
1 discussion promptβ€’Total 15 minutes
  • Smart contracts securityβ€’15 minutes

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.

What's included

1 video2 readings1 peer review

1 videoβ€’Total 2 minutes
  • Course Wrap-up videoβ€’2 minutes
2 readingsβ€’Total 3 minutes
  • Congratulations and Next Stepsβ€’2 minutes
  • Thanks from the Course Teamβ€’1 minute
1 peer reviewβ€’Total 120 minutes
  • Different Types of Consensus Algorithms and Blockchain Security Measuresβ€’120 minutes

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3 Coursesβ€’2,114 learners

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Frequently asked questions

To access the course materials, assignments and to earn a Certificate, you will need to purchase the Certificate experience when you enroll in a course. You can try a Free Trial instead, or apply for Financial Aid. The course may offer 'Full Course, No Certificate' instead. This option lets you see all course materials, submit required assessments, and get a final grade. This also means that you will not be able to purchase a Certificate experience.

When you enroll in the course, you get access to all of the courses in the Specialization, and you earn a certificate when you complete the work. Your electronic Certificate will be added to your Accomplishments page - from there, you can print your Certificate or add it to your LinkedIn profile.

Yes. In select learning programs, you can apply for financial aid or a scholarship if you can’t afford the enrollment fee. If fin aid or scholarship is available for your learning program selection, you’ll find a link to apply on the description page.

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ΒΉ Some assignments in this course are AI-graded. For these assignments, your data will be used in accordance with Coursera's Privacy Notice.