add nativeapis

Signed-off-by: Nzengyawen <zengyawen1@huawei.com>

en/application-dev/reference/native-apis/_o_h___huks___key_material_dh.md

+# OH_Huks_KeyMaterialDh
+
+
+## Overview
+
+Defines the structure of a DH key.
+
+**Since:**
+9
+
+**Related Modules:**
+
+[HuksTypeApi](_huks_type_api.md)
+
+
+## Summary
+
+
+### Member Variables
+
+| Name | Description | 
+| -------- | -------- |
+| [keyAlg](#keyalg) |Algorithm of the key.  | 
+| [keySize](#keysize) | Length of the DH key.  | 
+| [pubKeySize](#pubkeysize) | Length of the public key.  | 
+| [priKeySize](#prikeysize) | Length of the private key.  | 
+| [reserved](#reserved) | Reserved.  | 
+
+
+## Member Variable Description 
+
+
+### keyAlg
+
+  
+```
+enum OH_Huks_KeyAlg OH_Huks_KeyMaterialDh::keyAlg
+```
+**Description**<br>
+Algorithm of the key.
+
+
+### keySize
+
+  
+```
+uint32_t OH_Huks_KeyMaterialDh::keySize
+```
+**Description**<br>
+Length of the DH key.
+
+
+### priKeySize
+
+  
+```
+uint32_t OH_Huks_KeyMaterialDh::priKeySize
+```
+**Description**<br>
+Length of the private key.
+
+
+### pubKeySize
+
+  
+```
+uint32_t OH_Huks_KeyMaterialDh::pubKeySize
+```
+**Description**<br>
+Length of the public key.
+
+
+### reserved
+
+  
+```
+uint32_t OH_Huks_KeyMaterialDh::reserved
+```
+**Description**<br>
+Reserved.