python-对称加解密

import base64
from cryptography.fernet import Fernet

key = Fernet.generate_key()

    def jiami_aes_Fernet(self,key,text,to_str=True):
        f1_obj = Fernet(key)
        mes = bytes(text,encoding='utf-8')
        jiami = f1_obj.encrypt(mes)
        if to_str:
            jiami = str(base64.b64encode(jiami), encoding='utf-8')
        return jiami

    def jiemi_aes_Fernet(self,key,text):
        f1_obj = Fernet(key)
        if isinstance(text,str):
            text = base64.b64decode(text)
        jiemi = f1_obj.decrypt(text).decode('utf-8')
        return jiemi