# Ciphers **TODO:** - [ ] Substitution Cipher - [ ] Caesar/Shift Cipher - [ ] Keyword Cipher - [ ] Polyalphabetic Ciphers - [ ] Vigenere (Original vs Modular Arithmetic) - [ ] Vernam Cipher (One-Time Pad) - [ ] Playfair Cipher - [ ] Hill Cipher - [ ] Rail Fence Transposition Ciphers - [ ] Columnar Transposition Ciphers