diff --git a/components/bt/esp_ble_mesh/mesh_common/include/mesh_common.h b/components/bt/esp_ble_mesh/mesh_common/include/mesh_common.h
index 746ec0f2ce..e39b73dff8 100644
--- a/components/bt/esp_ble_mesh/mesh_common/include/mesh_common.h
+++ b/components/bt/esp_ble_mesh/mesh_common/include/mesh_common.h
@@ -73,6 +73,8 @@ void bt_mesh_free_buf(struct net_buf_simple *buf);
  */
 uint8_t bt_mesh_get_device_role(struct bt_mesh_model *model, bool srv_send);
 
+int bt_mesh_rand(void *buf, size_t len);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/components/bt/esp_ble_mesh/mesh_common/mesh_common.c b/components/bt/esp_ble_mesh/mesh_common/mesh_common.c
index 4eeb3280a4..3f0be4bb4a 100644
--- a/components/bt/esp_ble_mesh/mesh_common/mesh_common.c
+++ b/components/bt/esp_ble_mesh/mesh_common/mesh_common.c
@@ -15,6 +15,8 @@
 #include <string.h>
 #include <errno.h>
 
+#include "esp_system.h"
+
 #include "mesh_main.h"
 #include "client_common.h"
 #include "mesh_common.h"
@@ -96,3 +98,17 @@ uint8_t bt_mesh_get_device_role(struct bt_mesh_model *model, bool srv_send)
 
     return client->msg_role;
 }
+
+int bt_mesh_rand(void *buf, size_t len)
+{
+    if (buf == NULL || len == 0) {
+        BT_ERR("%s, Invalid parameter", __func__);
+        return -EINVAL;
+    }
+
+    esp_fill_random(buf, len);
+
+    BT_DBG("Random %s", bt_hex(buf, len));
+
+    return 0;
+}
diff --git a/components/bt/esp_ble_mesh/mesh_core/bluedroid_host/mesh_bearer_adapt.c b/components/bt/esp_ble_mesh/mesh_core/bluedroid_host/mesh_bearer_adapt.c
index 17a43e7934..dc1c19b139 100644
--- a/components/bt/esp_ble_mesh/mesh_core/bluedroid_host/mesh_bearer_adapt.c
+++ b/components/bt/esp_ble_mesh/mesh_core/bluedroid_host/mesh_bearer_adapt.c
@@ -1797,24 +1797,6 @@ void bt_mesh_adapt_init(void)
     bt_mesh_rand(bt_mesh_private_key, sizeof(bt_mesh_private_key));
 }
 
-int bt_mesh_rand(void *buf, size_t len)
-{
-    int i;
-
-    if (buf == NULL || len == 0) {
-        BT_ERR("%s, Invalid parameter", __func__);
-        return -EAGAIN;
-    }
-
-    for (i = 0; i < (int)(len / sizeof(uint32_t)); i++) {
-        uint32_t rand = esp_random();
-        memcpy(buf + i * sizeof(uint32_t), &rand, sizeof(uint32_t));
-    }
-
-    BT_DBG("Rand %s", bt_hex(buf, len));
-    return 0;
-}
-
 void bt_mesh_set_private_key(const uint8_t pri_key[32])
 {
     memcpy(bt_mesh_private_key, pri_key, 32);
diff --git a/components/bt/esp_ble_mesh/mesh_core/include/mesh_bearer_adapt.h b/components/bt/esp_ble_mesh/mesh_core/include/mesh_bearer_adapt.h
index fb1d5c2bdf..cc3d2b7bfc 100644
--- a/components/bt/esp_ble_mesh/mesh_core/include/mesh_bearer_adapt.h
+++ b/components/bt/esp_ble_mesh/mesh_core/include/mesh_bearer_adapt.h
@@ -767,8 +767,6 @@ void bt_mesh_gatt_deinit(void);
 
 void bt_mesh_adapt_init(void);
 
-int bt_mesh_rand(void *buf, size_t len);
-
 void bt_mesh_set_private_key(const uint8_t pri_key[32]);
 
 const uint8_t *bt_mesh_pub_key_get(void);
diff --git a/components/bt/esp_ble_mesh/mesh_core/nimble_host/mesh_bearer_adapt.c b/components/bt/esp_ble_mesh/mesh_core/nimble_host/mesh_bearer_adapt.c
index c4363c7433..80389ce792 100644
--- a/components/bt/esp_ble_mesh/mesh_core/nimble_host/mesh_bearer_adapt.c
+++ b/components/bt/esp_ble_mesh/mesh_core/nimble_host/mesh_bearer_adapt.c
@@ -1758,24 +1758,6 @@ void bt_mesh_adapt_init(void)
     bt_mesh_rand(bt_mesh_private_key, sizeof(bt_mesh_private_key));
 }
 
-int bt_mesh_rand(void *buf, size_t len)
-{
-    int i;
-
-    if (buf == NULL || len == 0) {
-        BT_ERR("%s, Invalid parameter", __func__);
-        return -EAGAIN;
-    }
-
-    for (i = 0; i < (int)(len / sizeof(uint32_t)); i++) {
-        uint32_t rand = esp_random();
-        memcpy(buf + i * sizeof(uint32_t), &rand, sizeof(uint32_t));
-    }
-
-    BT_DBG("Rand %s", bt_hex(buf, len));
-    return 0;
-}
-
 void bt_mesh_set_private_key(const uint8_t pri_key[32])
 {
     memcpy(bt_mesh_private_key, pri_key, 32);
diff --git a/components/bt/esp_ble_mesh/mesh_core/proxy_server.c b/components/bt/esp_ble_mesh/mesh_core/proxy_server.c
index b5374686ec..4d84c9a5b8 100644
--- a/components/bt/esp_ble_mesh/mesh_core/proxy_server.c
+++ b/components/bt/esp_ble_mesh/mesh_core/proxy_server.c
@@ -16,6 +16,7 @@
 #include "access.h"
 #include "transport.h"
 #include "foundation.h"
+#include "mesh_common.h"
 #include "proxy_server.h"
 
 #if (CONFIG_BLE_MESH_NODE && CONFIG_BLE_MESH_PB_GATT) || \