[refactor] STSELib 1.2.0 API change

Signed-off-by: Benjamin Grolleau <benjamin.grolleau@outlook.com>

Author: TofMassilia13320

api/stse_symmetric_keys_management.c

@@ -537,6 +537,9 @@ stse_ReturnCode_t stse_host_secure_channel_keys_provisioning(
                                       STSE_AES_KEY_USAGE_CIPHER,
                                       host_cipher_key_index);
     memset(host_cipher_key->key, 0, sizeof(host_cipher_key->key));
+    if (ret != STSE_OK) {
+        return ret;
+    }
 
     return ret;
 #else
@@ -1804,6 +1807,12 @@ stse_ReturnCode_t stse_establish_symmetric_key_authenticated(
 
     memset(okm_buffer, 0, STSE_AES_256_KEY_SIZE);
 
+    /* - Store confirmation key */
+    ret = stse_platform_store_aes_key(
+        okm_buffer,
+        STSE_AES_256_KEY_SIZE,
+        STSE_AES_KEY_USAGE_GENERIC_SECRET,
+        &confirmation_key_index);
     if (ret != STSE_OK) {
         return ret;
     }