The code used in this region uses a key word or key phrase to decipher the message. The keyword or
key phrase is written repeatedly above the message and then the deciphering process is followed. In
this method the symbol aligned with the letter A on the outer wheel is changed after each letter
according the the letters in the keyword or key phrase. This sample codes uses "FISH" as the keyword.
This first step is to write the keyword "FISH" above the ciphertext, repeating until reaching the
end of the ciphertext. Align the red section of the inner wheel with the letter of the key text and
then find the symbol in the ciphertext on the inner wheel and write the corresponding letter on the
outer wheel below the ciphertext. Repeat this process to the end of the ciphertext.
