Python Case Study - Cryptography

This course is part of multiple programs.

Instructor: EDUCBA

Access provided by Ivey Business School

5 modules

Gain insight into a topic and learn the fundamentals.

12 reviews

1 week to complete

at 10 hours a week

Flexible schedule

Learn at your own pace

5 modules

Gain insight into a topic and learn the fundamentals.

12 reviews

1 week to complete

at 10 hours a week

Flexible schedule

Learn at your own pace

Skills you'll gain

Tools you'll learn

Python Programming

Details to know

Shareable certificate

Add to your LinkedIn profile

Assessments

15 assignments

Taught in English

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There are 5 modules in this course

This course offers a hands-on, case study-driven introduction to classical and modern cryptography using Python. Through a progression of real-world cipher implementations, learners will understand foundational encryption principles, apply cipher algorithms programmatically, and analyze vulnerabilities in both classical and modern encryption schemes.

Starting with basic reverse and Caesar ciphers, the course advances through brute force attacks, transposition techniques, and affine-based cryptography before culminating in public key cryptosystems like RSA. Learners will gain practical experience in building encryption and decryption tools, evaluating cryptographic strength, and creating secure systems using libraries like PyCrypto. By the end of the course, learners will be able to construct, experiment with, and critically evaluate cryptographic systems for secure communication using Python programming, while also demonstrating fluency in key cryptographic concepts such as hashing, key generation, and symmetric vs. asymmetric encryption.

This module introduces the fundamental concepts of cryptography and explains the importance of using Python as a tool to implement and explore basic cipher techniques. Learners will gain an understanding of how cryptography works and begin experimenting with simple encryption schemes.

What's included

6 videos3 assignments

6 videos Total 34 minutes

Introduction to Cryptography using Python 2 minutes
Understanding the Process of Cryptography 6 minutes
Purpose of Python as a Tool 6 minutes
Algorithm on Reverse Cipher 8 minutes
Understanding Ceaser Cipher 6 minutes
Algorithm on Pyperclip 7 minutes

3 assignments Total 50 minutes

Graded: Foundations of Cryptography with Python 30 minutes
Getting Started with Cryptography 10 minutes
Exploring Basic Ciphers 10 minutes

This module explores brute force attacks and introduces transposition ciphers. Learners will understand the mechanisms behind these techniques, implement encryption and decryption programs, and analyze cipher weaknesses through automated English detection.

What's included

6 videos3 assignments

6 videos Total 40 minutes

Concept of Brute Force Attack 6 minutes
Functions of Transposition Cipher 4 minutes
Transposition Cipher Encryption Program 8 minutes
Decryption of Transposition Cipher 8 minutes
Detecting English Programmatically 11 minutes
Output of dictionary list 4 minutes

3 assignments Total 50 minutes

Graded: 30 minutes
Brute Force and Cipher Concepts 10 minutes
Transposition Cipher Implementation 10 minutes

This module delves into classical encryption methods including the multiplicative and affine ciphers. Learners will build modular arithmetic utilities, encrypt and decrypt messages, and evaluate cryptographic strength based on key structure and inverses.

What's included

6 videos3 assignments

6 videos Total 39 minutes

The Multiplicative Cipher 4 minutes
Creating Cryptomath Module 4 minutes
Affine Cipher Encryption 12 minutes
Understanding the Decrypting Functionality 5 minutes
Hacking the Affine Cipher 10 minutes
Modifying and Hacking Affline 3 minutes

3 assignments Total 50 minutes

Graded: Classical and Affine Ciphers 30 minutes
Multiplicative and Affine Ciphers 10 minutes
Decryption and Attacks 10 minutes

This module focuses on more complex symmetric encryption techniques such as substitution, Vernam (one-time pad), and Vigenère ciphers. Learners will implement and test these ciphers, and understand their cryptographic strength and vulnerabilities.

What's included

9 videos3 assignments

9 videos Total 63 minutes

Learning the Substitution Cipher 6 minutes
Implementing Substitution Cipher 8 minutes
Functions of Random Key 6 minutes
Runnig Code for Subsitution Cipher 2 minutes
Hacking the Substitution Cipher 11 minutes
Concept of Vernam Cipher 3 minutes
Understanding the Implementation of Vernam Cipher 8 minutes
Implementation of Vignere Cipher 12 minutes
Hacking the Vignere Cipher 8 minutes

3 assignments Total 50 minutes

Graded: Substitution, Vernam & Vigenère Ciphers 30 minutes
Substitution Cipher 10 minutes
Vernam & Vigenère Cipher Techniques 10 minutes

This module transitions to modern cryptographic techniques including Base64 encoding, hashing algorithms, and public-key cryptography using RSA. Learners will implement secure communication protocols, work with key generation, and understand the mathematics behind prime factorization and encryption algorithms.