On Mon, Jul 8, 2024 at 10:15 AM Emelia Smith <eme...@brandedcode.com> wrote:

> Just to follow up on this, further:
> > > 1. If an AS supports both registered, and unregistered clients, is
> there any guidance or requirements on differentiating between them such as
> NOT issuing other identifiers that start with 'https"?
> >
> > This is probably a good call-out. I am unsure about how many AS's
> would actually support both types of clients in practice though.
>
> In practice you're not checking for "https" but "https://";, furthermore
> most implementations use random bytes, often base64url or hex encoded, so
> they simply don't have the character set necessary to generate client_id's
> that are also valid URIs (or at least, the probability of this is
> incredibly small)
>

Agree on the "https://"; -- that was what I intended.

There may be ASes that use URLs as identifiers. I don't know of any.

Not having thought it all through, I might allow a developer to "claim" a
"https://"; client_id so that they could have more functionality, for
example to enable localhost or access to more sensitive data.

Thanks for this work Emelia! Will you be in Vancouver IETF?

/Dick
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