An Introduction to Cryptography (FutureLearn)

An Introduction to Cryptography (FutureLearn)

Explore how code breakers and spies influenced cryptography and investigate the role it plays in modern secure communication. Investigate the security of encrypted data. Is it possible to prove the security of encrypted data? Will every algorithm fail given sufficient time or computing power? On this course you will get an introduction to cryptography and cryptanalysis. From ancient examples of secret messages and the spies that cracked them to modern cryptographic applications, you will have the opportunity to explore the foundations of data security.

Class Deals by MOOC List - Click here and see FutureLearn's Active Discounts, Deals, and Promo Codes.

During the course you will also get an opportunity to try encrypting data yourself by completing a cryptography and cryptanalysis challenge.
This course is part of the program Cryptography, which is one of the building blocks that leads to a degree in MSc Cyber Security.

What topics will you cover?

  • Mathematical concepts underpinning cryptography
  • Classical cryptography and historical ciphers
  • Basics of cryptanalysis
  • Random number generation
  • Hashing

What will you achieve?
By the end of the course, you'll be able to...

  • Explain the concepts used in early substitution and translation ciphers
  • Apply cryptanalysis methods to simple ciphers
  • Assess simple cryptographic methods from a practical and theoretical viewpoint
  • Describe the concepts of entropy, pseudorandomness, unicity and
  • Demonstrate the use of hashing, salt and nonces in a variety of applications

Who is the course for?
The Institute of Coding supported the development of this course in response to consultation with industry representatives from the healthcare, manufacturing and automotive sectors.
This course is for people who want to understand more about the way cryptography keeps our communications safe, either out of curiosity or to prepare for advanced study of the topic.

Go to Class
MOOC List is learner-supported. When you buy through links on our site, we may earn an affiliate commission.

Related Courses

Cyber Security: Safety at Home, Online, in Life (FutureLearn) FutureLearn
Newcastle University

Cyber Security: Safety at Home, Online, in Life (FutureLearn)

This three-week free online course explores practical cyber security including privacy online, payment safety and security at home. In the modern world, information security has an influence on all of us: at home, at work, online and in life in general. Like many inventions that have gone before, the internet and the web, the cloud and the Internet of Things (IoT) bring with them many advantages, but also open up new possibilities for criminal activity.

No sessions available
3 Weeks
Exam Prep: AWS Certified Solutions Architect - Associate (Coursera) Coursera
AWS

Exam Prep: AWS Certified Solutions Architect - Associate (Coursera)

This new intermediate-level course from Amazon Web Services (AWS) is designed to help you to assess your preparedness for the AWS Certified Solutions Architect - Associate exam. You will learn how to prepare for the exam by exploring the exam’s topic areas and how they map to architecting on AWS. You will review sample certification questions in each domain, practice skills with hands-on exercises, test your knowledge with practice question sets, and learn strategies for identifying incorrect responses by interpreting the concepts that are being tested in the exam.

Aug 10th 2026
4 Weeks
Cybersecurity Risk Management (edX) EdX
Rochester Institute of Technology,RITx

Cybersecurity Risk Management (edX)

Learn key principles of risk analysis, risk assessment and risk mitigation for information security using both qualitative and quantitative methodologies. Cybersecurity risk management guides a growing number of IT decisions. Cybersecurity risks continue to have critical impacts on overall IT risk modeling, assessment and mitigation.

Aug 17th 2026
5-12 Weeks
Cybersecurity Fundamentals (edX) EdX
Rochester Institute of Technology,RITx

Cybersecurity Fundamentals (edX)

Learn cybersecurity fundamentals, including how to detect threats, protect systems and networks, and anticipate potential cyber attacks. In this introduction to the field of computing security, you will be given an extensive overview of the various branches of computing security. You will learn cybersecurity concepts, issues, and tools that are critical in solving problems in the computing security domain.

Aug 17th 2026
5-12 Weeks
Introduction to Network Security (Coursera) Coursera
University of London,Royal Holloway, University of London

Introduction to Network Security (Coursera)

The security of computer networks is a key element in cyber security. Computer networking provides the foundational connectivity services that are used for the world wide web, distributed computer applications and services, operations and manufacturing, and national infrastructure. This course provides understanding of key technologies used in computer networks and infrastructure. This includes protocols, computer networks, data centres, operational technologies that form key infrastructure critical to the success of organisations and services from a local to an international scale.

Aug 10th 2026
5-12 Weeks
Implementing a Risk Management Framework (Coursera) Coursera
University System of Georgia

Implementing a Risk Management Framework (Coursera)

The ultimate destination for a security manager is the Chief Information Security Officer (or Chief Security Officer) a senior executive role responsible for all cybersecurity operations in the organization. But how do you get from entry-level IT or security employee to the CISO’s office and what do you need to know when you get there? This course examines the career path and requirements to be an effective CISO, as well as the roles and responsibilities of the position.

Aug 10th 2026
5-12 Weeks
Becoming a Cybersecurity Consultant (Coursera) Coursera
EIT Digital

Becoming a Cybersecurity Consultant (Coursera)

The course targets individuals planning to develop a career in cybersecurity, middle managers and executives. The course covers the following main learning objectives: Threats - Technology - Economics and it is structured in 2 parts: an online part and a face-to-face/live webinar part. The present online course is designed to cover theoretical concepts a Cybersecurity Consultant (medium level) should know.

Aug 10th 2026
3 Weeks
Terrorism and Counterterrorism: Comparing Theory and Practice (Coursera) Coursera
Leiden University

Terrorism and Counterterrorism: Comparing Theory and Practice (Coursera)

Terrorism has arguably been one of the defining factors of our age. It frequently makes headlines, threatening or attacking governments, private business and ordinary citizens. And in many parts of the world, it has been one of the most important threats to peace, security and stability. But what does this exactly mean? What is the nature of this threat? Who or what is threatened, how, by whom and why? What can be done about it or how can we at least limit the impact of terrorism and make sure that terrorists do not make headlines and manage to scare us? These are just a handful of questions that will be addressed in this course that consists of three parts.

Aug 10th 2026
5-12 Weeks