I just finished the implementation on Volt Protect to password protect pages, also with checking permissions of the logged in user.
Open the Volt CMS demo website and make sure you are not logged in. Open the Protect page from the menu bar. You will be redirected (server side) to the login page. After successful login, you will be redirected to the protected page and are able to see the content.
This functionality will get into beta test this week.
Cheers
Jannis