Authority Agent

The Authority agent is responsible for managing the connections between User and authorities (i.e. DP, DC) and activities related to Verifiable Credentials/Presentations (i.e. proof requests, validation, issuing). To do so, it includes collaboration between several application components. The Verifiable Credential Generator reads the original evidence record on the DP side to generate and digitally sign the VC. This component is used by the SSI cloud agent, which is also responsible for managing the DID invitations to the User and providing interfaces for the communication between the Agent (cloud or edge) and the Evidence portal or the Ledger necessary to issue or verify VC/VP.

• Graphic representations of the Authority Agent application collaboration
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  VC

Application Components of the Authority Agent

Application Component	Description	Pattern(s)
Verifiable Credential Generator	Application component managing the generation, i.e., issuance of VC by the DP as issuer to the user as the holder of the newly generated (i.e., re-issued) evidence (VC). The component also includes the processes of evidence translation into the form of a VC and the digital signing by the issuer of the evidence.	VC
SSI Cloud Agent Back-end	Application component managing the DID connections and handling the VC/VP related events.	VC
Agent to Portal Connection	This interface provides two main functions to Evidence Portals and the eProcedure portal: The creation of a DID connection requires a DID Invitation Object from the Agent to be displayed as a QR Code in the Portals (both Evidence and eProcedure) For the Evidence Portal, this interface is able to receive an Evidence Record that is then transformed into a VC by the Verifiable Credential Generator of the Authority Agent.	VC
Agent to Agent  (Cloud)	Interface between Agents that provides the functionalities of a DID connection, e.g.: exchange of DID documents, Verifiable Credentials and Verifiable Presentations	VC