By the end of this course, learners will be able to design, implement, and hack classical ciphers using Python, apply statistical frequency analysis, and automate cryptanalysis techniques through structured programs. You will gain hands-on experience with substitution ciphers, Vigenère encryption, and advanced methods such as dictionary-based attacks and the Kasiski Examination.
Python Cryptography: Build & Explore Classical Ciphers
Python Cryptography: Build & Explore Classical Ciphers
This course is part of Python Hacking & Cryptography Mastery Specialization
Instructor: EDUCBA
Access provided by San Francisco State University
Gain insight into a topic and learn the fundamentals.
1 week to complete
at 10 hours a week
Flexible schedule
Learn at your own pace
What you'll learn
Implement and crack substitution and Vigenère ciphers using Python.
Use frequency analysis, Kasiski exam, and dictionary attacks for cryptanalysis.
Automate cryptanalysis workflows and build GUI tools to test and visualize attacks.
Skills you'll gain
Details to know
Shareable certificate
Add to your LinkedIn profile
Assessments
16 assignments
Taught in English
Recently updated!
October 2025
See how employees at top companies are mastering in-demand skills
Build your subject-matter expertise
This course is part of the Python Hacking & Cryptography Mastery 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
This module introduces learners to the principles of classical substitution ciphers, word pattern analysis, and Python-based hacking tools. Through hands-on coding, students will build and refine substitution cipher hacker programs, understand their logic step by step, and apply systematic letter mapping strategies to decrypt ciphertext.
What's included
12 videos4 assignments
This module explores the polyalphabetic Vigenère cipher, demonstrating its strengths and weaknesses through practical programming. Learners will implement encryption and decryption routines, understand how keys drive shifting alphabets, and use frequency analysis to uncover hidden patterns in ciphertext.
What's included
12 videos4 assignments
This module advances into practical cryptanalysis by combining statistical methods, dictionary attacks, and the Kasiski Examination. Learners will test Python programs that exploit repeated ciphertext sequences, refine dictionary-based hacking techniques, and apply statistical analysis to crack Vigenère encryption.
What's included
9 videos4 assignments
The final module integrates cryptanalysis functions, key length analysis, and a real-world Python GUI project. Students will design and apply functions to test factors, key letters, and key lengths, before completing a hands-on amusement park management app that consolidates coding and cryptography skills.
What's included
13 videos4 assignments
Earn a career certificate
Add this credential to your LinkedIn profile, resume, or CV. Share it on social media and in your performance review.
Why people choose Coursera for their career
Felipe M.
Learner since 2018
"To be able to take courses at my own pace and rhythm has been an amazing experience. I can learn whenever it fits my schedule and mood."
Jennifer J.
Learner since 2020
"I directly applied the concepts and skills I learned from my courses to an exciting new project at work."
Larry W.
Learner since 2021
"When I need courses on topics that my university doesn't offer, Coursera is one of the best places to go."
Chaitanya A.
"Learning isn't just about being better at your job: it's so much more than that. Coursera allows me to learn without limits."
