diff --git a/tests/src/random.c b/tests/src/random.c
new file mode 100644
index 0000000..f80a1c4
--- /dev/null
+++ b/tests/src/random.c
@@ -0,0 +1,26 @@
+/**
+ * \file random.c
+ *
+ * \brief   This file contains the helper functions to generate random numbers
+ *          for the purpose of testing.
+ */
+
+/*  Copyright (C) 2020, ARM Limited, All Rights Reserved
+ *  SPDX-License-Identifier: Apache-2.0
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License"); you may
+ *  not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ *  This file is part of mbed TLS (https://tls.mbed.org)
+ */
+
+#include <test/random.h>