Vigenère Cipher
Polyalphabetic Caesar shift driven by a keyword.
About this tool
The Vigenère cipher rotates each letter by the corresponding letter of a repeating keyword. Still trivially breakable today, but a great teaching cipher.
Polyalphabetic Caesar shift driven by a keyword.
The Vigenère cipher rotates each letter by the corresponding letter of a repeating keyword. Still trivially breakable today, but a great teaching cipher.