Classical Ciphers
Explore historical encryption methods with interactive tools and step-by-step guidance
Interactive Cipher Tool
Input
Encrypt
Decrypt
Cipher Information
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Caesar Cipher
Each letter is shifted by a fixed number of positions in the alphabet
Example: HELLO with shift 3 → KHOORResults
Ciphertext:
Decrypted Text:
Overview
Security
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Caesar Cipher
One of the simplest and most widely known encryption techniques.
Substitution Cipher🔑
Vigenère Cipher
A method of encrypting alphabetic text using polyalphabetic substitution.
Polyalphabetic Cipher🚂
Rail Fence Cipher
A form of transposition cipher encoded in a zigzag pattern.
Transposition Cipher