backend.py 文件源码

def load_rsa_public_numbers(self, numbers):
        rsa._check_public_key_components(numbers.e, numbers.n)

        attrs = build_attributes([
            (self._binding.CKA_TOKEN, False),  # don't persist it
            (self._binding.CKA_CLASS, self._binding.CKO_PUBLIC_KEY),
            (self._binding.CKA_KEY_TYPE, self._binding.CKK_RSA),
            (self._binding.CKA_MODULUS, utils.int_to_bytes(numbers.n)),
            (self._binding.CKA_PUBLIC_EXPONENT, utils.int_to_bytes(numbers.e)),
        ], self)

        session = self._session_pool.acquire()
        # TODO: do we want to delete the object from the session when it
        # is no longer in scope?
        object_handle = self._ffi.new("CK_OBJECT_HANDLE *")
        res = self._lib.C_CreateObject(
            session[0], attrs.template, len(attrs.template), object_handle
        )
        self._check_error(res)

        return _RSAPublicKey(self, object_handle[0])