crypto.py 文件源码

def decrypt(self, ciphertext: bytes):
        iv = ciphertext[:AES.block_size // 8]
        tag = ciphertext[-16:]
        cipher = Cipher(self._hazmat_key, GCM(iv, tag), backend=openssl).decryptor()
        return cipher.update(ciphertext[16:-16]) + cipher.finalize()