W3C home > Mailing lists > Public > public-credentials@w3.org > March 2016

Re: Additional Use Case for VCTF

From: Steven Rowat <steven_rowat@sunshine.net>
Date: Mon, 21 Mar 2016 13:39:36 -0700
To: public-credentials@w3.org
Message-ID: <56F05C08.40409@sunshine.net>
On 3/21/16 11:46 AM, Shane McCarron wrote:
> Information in
>     the page indicates where on the vendor's site to find their claim
>     about security, and the extension can retrieve the claim and
>     verify it. [snip]...
>   You can imagine many similar scenarios for
> other verticals (verify physician credentials, check whether a school
> is accredited, etc.)

Agreed, would be a great improvement in the current UI.  I know I've 
wanted it recently. Millions of people probably wish for something 
like this every day. :-)

One thought: IMO it could lead to complex privacy questions --

Example: on a Health Site, a doctor is writing the site supposedly. 
The user checks this, and the credential exists, but...what kind of 
doctor? Educated where and when and with what specialty?

The doctor's verifiable credentials could then include year graduated, 
what university, what specialty -- but the doctor may not want all 
that available on the site. Meanwhile the site user may feel they need 
to know certain levels of the information in order to trust the site. 
(Do I trust what a Neurosurgeon says about nutrition? Or what a GP 
says about neurosurgery?)

I believe this granularity is already under the scope of the 
Credentials Goals in the Editor's Draft, as "Composability of 
verifiable claims to express an aspect of one's identity in a granular 

So the use-case overall looks like it's well worth doing...and perhaps 
would be complicated in some scenarios, requiring a back-and-forth 
with the site viewer.

Steven Rowat
Received on Monday, 21 March 2016 20:40:05 UTC

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