Vigenére Autokey

This is an extension to the Vigenere cipher that makes it much harder to break. Instead of repeating the passphrase over and over in order to encrypt the text, the passphrase is used once and the cleartext is used to decrypt or encrypt the text.

Alphabet Key: -

Alphabet Used: ABCDEFGHIJKLMNOPQRSTUVWXYZ - Show Tableau

Passphrase:

Your message:

This is your encoded or decoded text:

In 1964, Stanley Weston markets a doll … er … action figure for boys based on a new TV show called "The Lieutenant." This toy is a hit, the show is not. Tyler Akins <>
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