About the Cipher
The Caesar Cipher is one of the simplest and most widely known encryption techniques. It is named after Julius Caesar, who used it in his private correspondence.
How It Works
It is a type of substitution cipher in which each letter in the plaintext is 'shifted' a certain number of places down the alphabet.
- Choose a Key: Select a number between 1 and 25 (e.g., Key = 3).
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Shift the Alphabet: Move every letter forward by that number.
Example: A becomes D, B becomes E, C becomes F. -
Encrypt: Replace every letter in your message with the shifted letter.
Plaintext: HELLO → Ciphertext: KHOOR
Interactive Tool
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