Connection protocol between Static Agent and Full Agent

[Andrei0105]

Aries Cloud Agent does not support establishing connections with static agents. It can generate invites, but the static agent does not know the connection protocol. Solutions:

• Upgrade full agent to accept connections from static agents
• Implement the connection protocol in the static agent (extension)

Alternative:

• Messages from the static agent to the full agent are unpacked (the verkey for the packing is the invite key) - this enables the full agent to receive messages from the static agent
• If the extension is connected to a Full Agent, it can send messages (requests/credentials etc.) received from the page (the Full Agent of the page) to it.
• The extension will act as proxy between 2 full agents. (Possible similar already existing communication primitive, Aries Relays: https://github.com/hyperledger/aries-rfcs/blob/master/concepts/0046-mediators-and-relays/README.md

[Andrei0105]

The current implementation uses the extension as a mediator (not in the Aries sense) between the page's agent and the user's agent. It should prompt the user to accept or refuse connection, credential and proof requests, and controls the user's full agent via its RESTful API. More details here: https://github.com/Andrei0105/identity-wallet/issues/3.