blockchain based supporting applications for DACs

[MrJeans]

Would it be possible to create blockchain based support applications which are integrated with the core of DAC. Im just thinking out aloud here.

For example, a decentralized application which functions as a 2-factor authentication for BitsharesX. When you want to enter your client, the client sends a cross-chain message to the application. You then have to confirm your identity with the application (a client you may be running on your phone).