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Re: CHAPI protocol flow diagrams (was: Re: Progress check on this thread)

From: Brian Richter <brian@aviary.tech>
Date: Sun, 3 Apr 2022 11:24:28 -0700
Message-ID: <CAPUZd8ujdKSTM-h2YtsY9MdJkG+KJvW0e0rK32oTjNhvDk=nxg@mail.gmail.com>
To: "public-credentials@w3.org" <public-credentials@w3.org>
Yes, very helpful. Thank you

On Sun, Apr 3, 2022 at 11:20 AM Manu Sporny <msporny@digitalbazaar.com>
wrote:

> On 4/3/22 2:06 PM, Brian Richter wrote:
> > Manu, can you define "mediators" in this discussion?
>
> Yes, we need to find a better term... even "wallet mediator" isn't
> descriptive
> enough.
>
> A "mediator", as used in CHAPI, is a piece of software that enables a
> Holder
> to choose which "digital wallet" they want to use for a particular
> transaction.
>
> This is in stark contrast to how social login works today, where you are
> typically only given 3-4 fixed/centralized choices: Login with
> Google/Apple/Microsoft/Facebook
>
> A mediator typically supports registration, selection, and deregistration.
> It
> also has other properties, like preventing an Issuer or a Verifier from
> discovering what Wallet the Holder is using (one strategy for preserving a
> competitive ecosystem).
>
> A mediator is what enables digital wallet choice in the SSI ecosystem when
> you
> want to invoke a digital wallet, regardless of whether it is a web app or a
> native app, on the same device (such as your laptop). A mediator is
> agnostic
> to the messages flowing over the communication channel.
>
> At present, CHAPI is used in the Verifiable Credentials ecosystem to
> select a
> wallet provider. It could also be used to select from among your OIDC
> providers.
>
> > In Aries / DIDComm land this term is used for agents that route messages
> > to agents that are often offline however I suspect you are using it in a
> > different way.
>
> The meaning in CHAPI is slightly different. CHAPI is used to route
> messages to
> agents without a consideration to whether or not they're offline (e.g.,
> CHAPI
> can work in both offline and online scenarios since it's purely client-side
> technology that lives in the browser).
>
> Does that help, Brian?
>
> -- manu
>
> --
> Manu Sporny - https://www.linkedin.com/in/manusporny/
> Founder/CEO - Digital Bazaar, Inc.
> News: Digital Bazaar Announces New Case Studies (2021)
> https://www.digitalbazaar.com/
>
>
>
Received on Sunday, 3 April 2022 18:25:52 UTC

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