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:

If you add up the opposing sides of nearly all six-sided dice, you will get 7. Tyler Akins <>
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