Would this work in a way that could keep data on the customers' premises? I often use CUI (Confidential/Controlled Unclassified Information) or classified information, and I'm thinking this would be really big for such applications, but you'd need to be seriously secure to meet MIL standards. Then there is obviously a lot of corporate info or banking info with different but similarly high standards...

This is certainly a great start securing the comms - good fortune putting it all together!