Historical Ciphers
Quick Reference
| Cipher | Type / Family |
|---|---|
| Caesar / ROT13 | Shift (Substitution) |
| Atbash | Substitution |
| Vigenère | Polyalphabetic (Keyword) |
| Affine | Mathematical (Substitution) |
| Substitution / Monoalphabetic | 1‑to‑1 mapping |
| Rail Fence | Transposition |
| Columnar Transpose | Transposition |
| Playfair | Polyalphabetic digraph |
| Hill Cipher | Matrix‑based |
| Baconian | Steganographic cipher |
| XOR Cipher (OTP) | Modern toy cipher |
| Enigma | Mechanical cipher |
Tools
Online
- Quipqiuo - Fast and automated cryptogram solver
- Boxentriq - Cipher Identifier.
- dCode - Another cipher identifier
- CrypTool-Online - Apps to learn about cryptology.
- CyberChef - The Cyber Swiss Army Knife
Resources
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