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Re: decentralised VC renderer question

From: Adrian Gropper <agropper@healthurl.com>
Date: Wed, 30 Jun 2021 11:41:47 -0400
Message-ID: <CANYRo8hGxJcp1r5u54txc54yjEYv7zNNrBEnuHwdZJsvsRaURA@mail.gmail.com>
To: Juan Caballero <caballerojuan@pm.me>
Cc: Leonard Rosenthol <lrosenth@adobe.com>, Manu Sporny <msporny@digitalbazaar.com>, "public-credentials@w3.org" <public-credentials@w3.org>
Embedding a VC in a human-readable document is a very good thing. Along
with the machine-readable VC, the document can have a quantized biometric
that is _both_ human and machine-readable. This allows the human verifier
to match the face of the subject presenting the document without having to
"call home" or to resort to a secondary ID like a government document with
a biometric.

I describe this here:
https://github.com/HIEofOne/Trustee-Community/blob/master/Biometric-Health-Card.pdf


- Adrian

On Wed, Jun 30, 2021 at 8:40 AM Juan Caballero <caballerojuan@pm.me> wrote:

> For what it's worth, I've submitted grant proposals over here in
> Europaland trying to find govt sponsorship to develop an open-source
> library for embedding VCs into PDFs the proper way (based on a detailed
> presentation by Leonard to the VC-EDU) group with, as yet, no success.
> Third time's a charm?
> On 6/30/2021 1:27 PM, Leonard Rosenthol wrote:
>
> Also worth noting that in the VC-EDU space, where the primary focus is on
> the human readable scenarios, they’ve explored embedding the VC into a PDF
> as well.
>
>
>
> Leonard
>
>
>
> *From: *Manu Sporny <msporny@digitalbazaar.com>
> <msporny@digitalbazaar.com>
> *Date: *Tuesday, June 29, 2021 at 9:44 AM
> *To: *public-credentials@w3.org <public-credentials@w3.org>
> <public-credentials@w3.org>
> *Subject: *Re: decentralised VC renderer question
>
> On 6/28/21 10:23 PM, steve capell wrote:
> > if it hasn't been a topic for the group then maybe it's something to add
> > somewhere on the long list of future to-do's?
>
> It's been discussed over the years, and yes, the solution is something
> along
> the lines of what you suggest. The following technologies have been
> explored,
> but with no firm resolution yet... we're all still very much experimenting
> with all of this now:
>
> * A static image embedded as a data: URL in the VC. This
>   includes SVGs.
>
> * A content-protected link to an external image in the VC.
>   This also includes SVGs.
>
> * HTML iframe to HTML-rendered credential that is
>   specified in the VC.
>
> * Fully encapsulated HTML+CSS embedded in the VC.
>
> * Web Component[1] referred to in the VC.
>
> All of the solutions have non-trivial privacy, payload size, and security
> implications. It's certainly a solvable problem... but the ecosystem seems
> to
> be focused on getting the foundation right at present and not rushing
> ahead to
> address the rendering problem.
>
> If you take a look at wallet today, they seem to be plucking values like
> "image", "title", and "description" and doing generic rendering for the
> other
> fields in the VC. Note that this is possible because the semantic meaning
> of
> each claim is globally known.
>
> It's all a work in progress... yes, people are working on it... but not in
> any
> coordination CCG fashion, yet.
>
> -- manu
>
> [1]
> https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FWeb%2FWeb_Components&amp;data=04%7C01%7Clrosenth%40adobe.com%7Cf8333d366f4d48f45a0b08d93b03fe07%7Cfa7b1b5a7b34438794aed2c178decee1%7C0%7C0%7C637605710616971474%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=jdSGP%2B7MRYGDdczJksC8jfaJbCcdt4MPt%2FvfV7ye7Fg%3D&amp;reserved=0
>
> --
> Manu Sporny -
> https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.linkedin.com%2Fin%2Fmanusporny%2F&amp;data=04%7C01%7Clrosenth%40adobe.com%7Cf8333d366f4d48f45a0b08d93b03fe07%7Cfa7b1b5a7b34438794aed2c178decee1%7C0%7C0%7C637605710616981425%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=AmV4teKlxUumRcitn5XMqHCF53hUABGU9u4IYF12M2I%3D&amp;reserved=0
> Founder/CEO - Digital Bazaar, Inc.
> News: Digital Bazaar Announces New Case Studies (2021)
>
> https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.digitalbazaar.com%2F&amp;data=04%7C01%7Clrosenth%40adobe.com%7Cf8333d366f4d48f45a0b08d93b03fe07%7Cfa7b1b5a7b34438794aed2c178decee1%7C0%7C0%7C637605710616981425%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=fVAJyjlWv8RsXjSBm6qIbnu0Z%2Fobd16i01VOhwM%2F1%2B8%3D&amp;reserved=0
>
> --
> ------------------------------
> Juan Caballero, PhD. Freelance <https://learningproof.xyz> Identity
> Researcher & Community Manager Signal/whatsapp: +1 415-3101351
> Berlin-based: +49 1573 5994525
>
Received on Wednesday, 30 June 2021 15:42:13 UTC

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