diff --git a/components/bt/esp_ble_mesh/api/core/include/esp_ble_mesh_provisioning_api.h b/components/bt/esp_ble_mesh/api/core/include/esp_ble_mesh_provisioning_api.h
index 58ad280468..a603689769 100644
--- a/components/bt/esp_ble_mesh/api/core/include/esp_ble_mesh_provisioning_api.h
+++ b/components/bt/esp_ble_mesh/api/core/include/esp_ble_mesh_provisioning_api.h
@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2017-2021 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2017-2025 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -67,9 +67,9 @@ esp_err_t esp_ble_mesh_node_prov_disable(esp_ble_mesh_prov_bearer_t bearers);
  *               So as an unprovisioned device, it should use this function to input
  *               the Public Key exchanged through the out-of-band mechanism.
  *
- * @param[in]    pub_key_x:   Unprovisioned device's Public Key X
- * @param[in]    pub_key_y:   Unprovisioned device's Public Key Y
- * @param[in]    private_key: Unprovisioned device's Private Key
+ * @param[in]    pub_key_x:   Unprovisioned device's Public Key X(Little Endian)
+ * @param[in]    pub_key_y:   Unprovisioned device's Public Key Y(Little Endian)
+ * @param[in]    private_key: Unprovisioned device's Private Key(Little Endian)
  *
  * @return       ESP_OK on success or error code otherwise.
  */
diff --git a/components/bt/esp_ble_mesh/common/crypto_mbedtls.c b/components/bt/esp_ble_mesh/common/crypto_mbedtls.c
index 5ff9670b5f..45fe7a78bb 100644
--- a/components/bt/esp_ble_mesh/common/crypto_mbedtls.c
+++ b/components/bt/esp_ble_mesh/common/crypto_mbedtls.c
@@ -335,6 +335,8 @@ void bt_mesh_set_private_key_raw(const uint8_t pri_key[32])
         goto cleanup;
     }
 
+    BT_DBG("Pubkey:%s", bt_hex(dh_pair.public_key, PUB_KEY_SIZE));
+    BT_DBG("Privkey:%s", bt_hex(dh_pair.private_key, PRIV_KEY_SIZE));
     dh_pair.is_ready = true;
 
 cleanup:
diff --git a/components/bt/esp_ble_mesh/common/crypto_psa.c b/components/bt/esp_ble_mesh/common/crypto_psa.c
index 16dd15bca0..3655c48cb6 100644
--- a/components/bt/esp_ble_mesh/common/crypto_psa.c
+++ b/components/bt/esp_ble_mesh/common/crypto_psa.c
@@ -392,6 +392,8 @@ void bt_mesh_set_private_key_raw(const uint8_t pri_key[32])
         return;
     }
 
+    BT_DBG("Pubkey:%s", bt_hex(&dh_pair.public_key[1], PUB_KEY_SIZE));
+    BT_DBG("Privkey:%s", bt_hex(pri_key, PRIV_KEY_SIZE));
     dh_pair.is_ready = true;
     psa_reset_key_attributes(&attributes);
 }
diff --git a/components/bt/esp_ble_mesh/common/crypto_tc.c b/components/bt/esp_ble_mesh/common/crypto_tc.c
index f4c780edd6..2c4d39499b 100644
--- a/components/bt/esp_ble_mesh/common/crypto_tc.c
+++ b/components/bt/esp_ble_mesh/common/crypto_tc.c
@@ -236,6 +236,8 @@ void bt_mesh_set_private_key_raw(const uint8_t pri_key[32])
         return;
     }
 
+    BT_DBG("Pubkey:%s", bt_hex(dh_pair.public_key, PUB_KEY_SIZE));
+    BT_DBG("Privkey:%s", bt_hex(dh_pair.private_key, PRIV_KEY_SIZE));
     dh_pair.is_ready = true;
 }
 
diff --git a/components/bt/esp_ble_mesh/common/include/mesh/crypto.h b/components/bt/esp_ble_mesh/common/include/mesh/crypto.h
index 806e84f479..0ae0cad1cb 100644
--- a/components/bt/esp_ble_mesh/common/include/mesh/crypto.h
+++ b/components/bt/esp_ble_mesh/common/include/mesh/crypto.h
@@ -345,11 +345,11 @@ int bt_mesh_pub_key_gen(void);
  *
  * @return 0 on success, -EAGAIN if public key not ready
  */
-static inline int bt_mesh_pub_key_copy(uint8_t buf[64])
+static inline int bt_mesh_pub_key_copy(uint8_t *buf)
 {
     const uint8_t *key = bt_mesh_pub_key_get_raw();
 
-    if (key == NULL) {
+    if (key == NULL || buf == NULL) {
         return -EAGAIN;
     }
 
diff --git a/components/bt/esp_ble_mesh/core/prov_node.c b/components/bt/esp_ble_mesh/core/prov_node.c
index dc550594df..15f24bf3d6 100644
--- a/components/bt/esp_ble_mesh/core/prov_node.c
+++ b/components/bt/esp_ble_mesh/core/prov_node.c
@@ -703,6 +703,8 @@ int bt_mesh_set_oob_pub_key(const uint8_t pub_key_x[32],
                             const uint8_t pub_key_y[32],
                             const uint8_t pri_key[32])
 {
+    uint8_t privkey[32] = {0};
+
     if (!pub_key_x || !pub_key_y || !pri_key) {
         BT_ERR("%s, Invalid parameter", __func__);
         return -EINVAL;
@@ -714,7 +716,8 @@ int bt_mesh_set_oob_pub_key(const uint8_t pub_key_x[32],
      */
     sys_memcpy_swap(&prov_link.conf_inputs[81], pub_key_x, 32);
     sys_memcpy_swap(&prov_link.conf_inputs[81] + 32, pub_key_y, 32);
-    bt_mesh_set_private_key(pri_key);
+    sys_memcpy_swap(privkey, pri_key, 32);
+    bt_mesh_set_private_key(privkey);
 
     bt_mesh_atomic_set_bit(prov_link.flags, OOB_PUB_KEY);