def __init__(self, code_word: str):
self._code = list(map(lambda c: alphabet.index(c), code_word))
self._reverse_code = list(
map(
lambda c:
(alphabet_length - alphabet.index(c)) % alphabet_length,
code_word))
self._code_length = len(self._code)
def decrypt(self, text: str) -> str:
res = ""
for i in range(len(text)):
res += alphabet[(alphabet.index(text[i]) +
self._key.get_reverse_code_value(i)) %
alphabet_length]
return res
def _encrypt_character(self, char):
return alphabet[(alphabet.index(char) * self._key._factor) %
alphabet_length]
def _decrypt_character(self, char):
return alphabet[(alphabet.index(char) * self._key._inverse) %
alphabet_length]
def _decrypt_character(self, char):
return alphabet[(alphabet.index(char) - self._key._offset) %
alphabet_length]