Method rotate

src/cryptography/fernet.py:186–198

(self, msg: bytes | str)

        return self._fernets[0].encrypt_at_time(msg, current_time)

    def rotate(self, msg: bytes | str) -> bytes:
        timestamp, data = Fernet._get_unverified_token_data(msg)
        for f in self._fernets:
            try:
                p = f._decrypt_data(data, timestamp, None)
                break
            except InvalidToken:
                pass
        else:
            raise InvalidToken

        iv = os.urandom(16)
        return self._fernets[0]._encrypt_from_parts(p, timestamp, iv)

    def decrypt(self, msg: bytes | str, ttl: int | None = None) -> bytes:
        for f in self._fernets: