Diff: features/mbedtls/platform/src/mbed_trng.c

Revision:

0:f782d9c66c49

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/features/mbedtls/platform/src/mbed_trng.c	Fri Feb 02 05:42:23 2018 +0000
@@ -0,0 +1,29 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2016 ARM Limited
+ *
+ * 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.
+ */
+
+#if defined(DEVICE_TRNG)
+
+#include "hal/trng_api.h"
+
+int mbedtls_hardware_poll( void *data, unsigned char *output, size_t len, size_t *olen ) {
+    trng_t trng_obj;
+    trng_init(&trng_obj);
+    int ret = trng_get_bytes(&trng_obj, output, len, olen);
+    trng_free(&trng_obj);
+    return ret;
+}
+
+#endif