def encrypt(self, msg):
# first code message and creating matrix from it
coded_msg = Message(msg, self.key_size)
# multiply key with coded message to create encrypted matrix message
encrypted_matrix = self._key * coded_msg % self.alphabet_size
# decode encrypted message to human readble charecters
encrypted_msg = Message._decode(encrypted_matrix)
print("coded message:\n", coded_msg)
print("key:\n", self._key)
print("encrypted message matrix:\n", encrypted_matrix)
print("encrypted message:\n", encrypted_msg)
return encrypted_msg
def decrypt(self, msg):
# first code message and creating matrix from it
coded_msg = Message(msg, self.key_size)
# creating inverse key for decoding proccess
self.inverse_key()
# multiply inversed key with coded message to create decrypted matrix message
decrypted_matrix = self._key * coded_msg % self.alphabet_size
# decode decrypted message to human readble format
decrypted_msg = Message._decode(decrypted_matrix)
print("coded message:\n", coded_msg)
print("inverse key:\n", self._key)
print("decrypted message matrix:\n", decrypted_matrix)
print("decrypted message:\n", decrypted_msg)
return decrypted_msg
