You will have to implement authentication in Web Forms and MVC projects generated by Visual Studio.
Watch the video about IT Hit WebDAV Server Engine for .Net and note the authentication options (Anonymous, Basic, Digest, Windows on Authentication step): https://www.youtube.com/watch?v=BWbA9oXwl4Q
Currently IT Hit "Add WebDAV Server Implementation" VS wizard supports membership provider authentication only. Authentication options (on Authentication step) are supported in VS 2010 and partially VS 2012 but not in VS 2013.
Download and install the IT Hit WebDAV Server Engine for .Net and install it on a computer with Visual Studio 2013:
Create Web Forms or MVC project and run 'Add WebDAV Server Implementation' wizard as you can see on the above video. You will see authentication options disabled in VS 2013.
You must find out how OWIN authentication can be implemented in a project generated by VS 2013.
I will provide more details and instructions about this and other tasks and projects during communication.