Default [Q] Lock app with NFC

Is there away to lock an app with NFC.
I am creating a VPN to our company server with OpenVPN for Android ... works great.
Problem is that I have to install the client certificate in the mobile and therefore I want to secure the start of OpenVPN app with a NFC tag. It should be so that the OpenVPN app ONLY can be started with NFC tag ...
I have with Tasker & Trigger & Secure Settings ... but am lost.

Appreciate any answers