https://3speak.tv/watch?v=crrdlx/lylcdppm
The Hive Authentication Service (HAS) or HiveAuth for short is a simple and secure way to login to Hive sites and dapps. It could also be used to securely login to any non-Hive sites or dapps that put it to use.

This video demonstrates how to use HiveAuth to login to a desktop dapp (Engage). It also demonstrates how to use HiveAuth on mobile only.