SamMeeDee

#  These methods are all class methods. To convert to instance methods, remove the "self." portion of the method names.

#  In order to decrypt, utilize the opposite method you used to encrypt, and pass the method the encrypted text, followed by the key.

#  You can use these methods to determine the key used to encrypt if you have both the plain text and ciphertext.
#  - If an additive method was used to encrypt, call the subtractive method, passing in the ciphertext, followed by the plaintext
#  - If a subtractive method was used to encrypt, call the subtractive method, passing in the plaintext, followed by the ciphertext

class OneTimePad