GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

sample/cipher/sample_rng.c

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+/*
+ * Copyright (c) XMEDIA. All rights reserved.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+
+#include "xmedia_type.h"
+#include "xmedia_cipher.h"
+#include "sample_common.h"
+
+int sample_rng(xmedia_void)
+{
+    xmedia_s32 ret = XMEDIA_SUCCESS;
+    xmedia_s32 index = 0;
+    xmedia_u32 random_number = 0;
+
+    ret = xmedia_cipher_init();
+    if (XMEDIA_SUCCESS != ret) {
+        ERR_CODE_CIPHER("xmedia_cipher_init ERROR!\n");
+        return ret;
+    }
+
+    for (index = 0; index < 10; index++) {
+        ret = xmedia_cipher_get_random_number(&random_number);
+        if (XMEDIA_SUCCESS != ret) {
+            ERR_CODE_CIPHER("There is No ramdom number available now. Try again!\n");
+            index--;
+            continue;
+        }
+
+        printf("Random number: %08x\n", random_number);
+    }
+
+    ret = xmedia_cipher_exit();
+    if (XMEDIA_SUCCESS != ret) {
+        ERR_CODE_CIPHER("xmedia_cipher_exit error! return value = %d.\n", ret);
+        return ret;
+    }
+
+    return ret;
+}
+