使用上层秘钥解密终端识别码密钥后再次加密连接设备

mms/mmsclient.c

@@ -1182,7 +1182,23 @@ S_SEC_ENCRYPT_CTRL *encryptCtrl = NULL;	/* conn enctryption info	*/
 	      authInfo->auth_pres = SD_TRUE;
 	      authInfo->mech_type = ACSE_AUTH_MECH_PASSWORD;
 	      memset(ied_password,0,sizeof(ied_password));
-        GetSM4Code((unsigned char*)dev_series,dev_key,ied_password);
+
+        //传进来的就是加密过的先解密成明文再传入
+        const char* key = "11HDESaAhiHHug2z";//上层使用的写死的key
+        char dev_series_plaintext[256] = {0};
+        char dev_key_plaintext[256] = {0};
+
+        int ret1 = sm4_ecb_decrypt_zeropad_base64(dev_series, key, dev_series_plaintext);
+        int ret2 = sm4_ecb_decrypt_zeropad_base64(dev_key, key, dev_key_plaintext);
+        if (ret1 == 0 && ret2 == 0) {
+            printf("识别码解密成功\n");
+            //printf("解密后的 dev_series: %s\n", dev_series_plaintext);
+            //printf("解密后的 dev_key   : %s\n", dev_key_plaintext);
+        } else {
+            printf("识别码解密失败\n");
+        }
+
+        GetSM4Code((unsigned char*)dev_series_plaintext,dev_key_plaintext,ied_password);
 	      strcpy (authInfo->u.pw_auth.password, ied_password);	
     } else {
         printf("dev_series or dev_key is null or space!\n");