crypto.py 文件源码

def encrypt(self, message: bytes):
        symkey = generate_sym_key()
        ciphertext = symkey.encrypt(message)
        ciphersymkey = self._hazmat_public_key.encrypt(
            symkey.key,
            padding.OAEP(
                mgf=padding.MGF1(algorithm=hashes.SHA256()),
                algorithm=hashes.SHA256(),
                label=None
            )
        )
        return struct.pack(">I", len(ciphersymkey)) + ciphersymkey + ciphertext