Introduction to ciphers and substitution. Alice and Bob and Carl and Julius: terminology and Caesar Cipher ; The key to the matter: generalizing the Caesar Cipher ; Multiplicative ciphers ; Affine ...

A small project to simulate different classic ciphers. The project was written during my sophomore so the optimization is not really at its best. Currently, this project has 7 ciphers: [0]: Caesar ...

Learn to use the cipher utility with confidence. This Daily Drill Down walks you through using every cipher switch and shows you exactly what happens in the real world when you use these switches.

Over on YouTube, [The Modern Rogue] created an interesting video showing a slide-rule-like encryption device called the Réglette. This was a hardware implementation of a Vigenère-like Cipher, ...

usage: decrypt_polycipher.py [-h] [-m] [-spa] [-i INPUT_FILE] [-o OUTPUT_FILE] [-nc] [-v] decrypt a polyalphabetic substitution ciphered text optional arguments: -h ...