Re: [Rats] Entity vs. role

[Thomas Fossati <[e-mail]>]

hi Ned

On Wed, Mar 23, 2022 at 8:53 AM Smith, Ned <[e-mail]> wrote:
> [ned] Maybe it is helpful to describe swim lanes between entities where each pairwise role interaction can be represented? It might also be helpful to qualify entities vs. roles in diagrams where both are needed such as passport and background check as it would seem the entity name is overloaded with the role name in the RATS architecture.
>
> e.g., given a verifier entity (V-E) that is connected to a relying party entity (RP-E), a hybrid model might have swimlanes as follows:
>
> V-E           RP-E
> ---           ----
> V  ----AR----> RP
> A  ----E-----> V

I like this.

Just a note: in this case, the existence of a Verifier role at RP-E is
predicated on the RP-E having access to, at least, the key material to
verify E - e.g., the public key of the attester A.  Otherwise, E is
just "passthrough/forwarded" and the RP role is all there is at RP-E.

cheers,
-- 
Thomas