registration interaction

Definition

Setup/Registration interaction, new AID and authorization to establish access control. You present a (vLEI) credential. You don't want that captured and misused. Narrowing the scope to a certain role (e.g. Document Submitter) is a pre-registration via delegatable authority.

The Credential is like a bearer token. Does it matter if the credential was delivered by the issuee? The token is proof of the authorization, but does the delivery require the issuee signature? Depends on the context. If it is an idempotent process resubmission has no effect.
Source: Samuel Smith / Daniel Hardman / Lance Byrd - Zoom meeting KERI Suite Jan 16 2024; discussion minute 30-60 min

Replay attack prevention

is important, depending on the context or governance model the issuance itself needs / should / could be signed.

Also see

Access-controlled interaction