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Cryptography and Information Warfare
Rating: 2.0 out of 5(3 ratings)
126 students

Cryptography and Information Warfare

Cryptography
Created byChamindu Dilneth
Last updated 11/2025
English
English [Auto],

What you'll learn

  • Introduction to Cryptography & Information Warfare
  • The Code Makers and Breakers
  • Modern Encryption in Action
  • Public Keys and Trust
  • Cryptography in the Real World

Course content

1 section • 6 lectures • 1h 3m total length

  • Introduction to Cryptography & Information Warfare7:10

    Explore the essentials of cryptography, its role in information warfare, and how encryption, hashing, and digital signatures protect confidentiality, integrity, and availability in secure communications.

  • The Code Makers and Breakers7:22

    Explore classical ciphers, from the Caesar shift to the Vigenère cipher, showing how frequency analysis and keyword patterns made simple substitutions crackable and steered modern cryptography.

  • Modern Encryption in Action6:53

    Explore how modern encryption protects data using the advanced encryption standard and a Python demo, including key-based encryption, block processing, and common modes like ecb and cbc.

  • Public Keys and Trust10:04

    Explore public key cryptography, RSA key generation, and digital signatures to establish authentication, integrity, and non-repudiation through a public key infrastructure used in https, email, and blockchain.

  • Cryptography in the Real World10:24

    Explore how cryptography underpins secure websites, blockchain, email, and everyday digital trust, and debate privacy versus security in the age of quantum computing.

  • Quiz Questions With Discussing answer21:51

    Explore cryptography through a quiz on TLS and SSL encrypted client-server communication. Learn about sha-256 in blockchain, GPG email encryption, and post-quantum threats to RSA/ECC.

Requirements

  • Want to Python begginer experion

Description

This course introduces you to the basics of cryptography, the art and science of protecting information from unauthorized access. It is designed especially for beginners who are curious about how data is secured in the digital world. You will learn key concepts such as encryption, decryption, symmetric and asymmetric keys, hashing, digital signatures, and how these tools are used to keep communication safe. Each topic is explained in simple language, with clear examples, visuals, and practical demonstrations that help you understand not just the “how,” but also the “why” behind each concept.

You do not need advanced mathematics or previous cybersecurity knowledge to start this course. The lessons are structured step by step, guiding you from simple substitution ciphers all the way to modern encryption used in messaging apps, banking systems, and secure websites. The aim is to make learning both understandable and practical, so you can easily connect what you learn to the real world.

By the end of this course, you will be able to understand basic cryptographic processes, analyze simple encryption workflows, and appreciate how cryptography protects privacy and trust online. This foundation will also prepare you to explore advanced topics such as ethical hacking, secure software development, and network security. This course is perfect for complete beginners who want to learn step by step.

Who this course is for:

  • Beginner for Cyber Security Student

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