- Substitution Cryptography
- Permutation/Transposition Cryptography
- Shift Cipher
- Monoalphabetic Cipher
- Playfair Cipher
- Polyalphabetic Cipher
- Vigenère Cipher
- Kasiski Method
- Autokey Cipher
- Vernam Cipher
- One-Time Pad
- Rail Fencer Cipher
- Row Transposition Cipher
- Block/Columnar Transposition Cipher
- Product Ciphers