Fernet 对称加解密
生成密钥 kdf = PBKDF2HMAC( algorithm=hashes.SHA256(), length=32, salt=salt, iterations=390000, ) key = base64.urlsafe_b64encode(kdf.derive(password)) print(key) 加解密 password_encrypt = Fernet(key).encrypt(password) print(password_encrypt) password_decrypt = Fernet(key).decrypt(password_encrypt).decode() print(password_decrypt)