Python Cryptography: Build and Explore Classical Ciphers

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. This course uniquely combines theory with practical coding, ensuring you not only understand cryptographic principles but also apply them in real Python projects. Each module builds progressively: starting with substitution cipher fundamentals, advancing into polyalphabetic ciphers, applying systematic hacking strategies, and culminating in a complete GUI case study. Along the way, you will refine Python programming skills, learn to interpret statistical patterns in ciphertext, and implement automation for efficient cryptanalysis. Whether you are a cybersecurity enthusiast, a Python developer, or a learner exploring ethical hacking, this course offers a rare blend of cryptography and coding practice. By completing it, you will have the confidence to analyze classical ciphers, build functional hacker programs, and apply these techniques in both educational and practical contexts

• 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

• Basic computer and internet skills
• Ability to read course instructions in English