Build practical Python cryptography and cryptanalysis skills by implementing and hacking classical ciphers. Designed for cybersecurity enthusiasts, Python developers, ethical hacking learners, and anyone exploring applied cryptography, this course combines cipher theory with structured, hands-on programming.

You’ll begin with simple substitution ciphers, learning encryption, decryption, word-pattern recognition, letter mapping, and systematic techniques for improving decryption accuracy. You’ll then implement Vigenère cipher programs and examine how keys create shifting alphabets. Through frequency analysis, you’ll interpret statistical patterns in ciphertext and build Python programs that support efficient cryptanalysis. As you progress, you’ll use dictionary-based attacks and the Kasiski Examination to identify repeated sequences, estimate key lengths, test candidate keys, and crack Vigenère encryption. You’ll also create reusable functions for factor analysis, common-factor calculations, key-letter testing, and automated hacking workflows. The final GUI case study applies Python programming through an amusement park management app with menu structures and main program files. The course’s progressive structure connects each cryptographic concept to working Python code. Enroll to strengthen your programming, analyze classical ciphers systematically, and build functional encryption and hacker programs.