Elonka's Vigenére Cipher

Cipher Key:
Alphabet Key:
Plaintext Key:



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The cipher key will alter the alphabet on top. The alphabet key changes the tableau. The plaintext key changes the letters on the left.
Encoding method: Look up the plaintext on the left, look up the letter of the passphrase on top. Find the tableau letter where they meet.
Decoding method: Look up the letter of the passphrase on top, scan down to the encrypted letter, go left to the plaintext letter.

I was going to add a "spin" so you can change each row's spin, but then problems pop up if you have two rows that are identical. Using a plaintext key approaches the same result but avoids potential problems.