> Following this line of reasoning, I am skeptical an IANA registry will
help impose the safeguards you are looking for. Misuse within the specified
context can still occur.

An RSC that is only ever inspected by a human probably won't benefit from
an IANA registry - the problem here arises from automated machine to
machine communication where a relying party can't make informed human
decisions.

Perhaps we need a RSC for attesting to files that a human will read, and a
new format for attesting to claims from an IANA registry that a machine
will read.
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On Wed, 23 Oct 2024 at 16:10, Job Snijders <[email protected]> wrote:

> On Wed, Oct 23, 2024 at 03:30:55PM +0200, Q Misell wrote:
> > > The RSC format has been specified in RFC 9323
> >
> > I am referring to the contents of the RSC, not the RSC encoding itself.
>
> The content of the RSC is an optional character-restricted label and an
> OCTET STRING of type "Digest", which MUST be SHA-256.
>
> > > Whether the payload is RFC9323-compliant or RFC9323bis-compliant,
> > > the moment system B 'blindly' signs over a set of bytes they ought
> > > not to sign over from an organisational scoping perspective, B is
> > > dead in the water anyway.
> >
> > But this is precisely what RSCs currently allow. Without an IANA
> > well-known registry of what different files in an RSC mean,
> > Organisation B's CA is powerless to restrict what it signs.
>
> Following this line of reasoning, I am skeptical an IANA registry will
> help impose the safeguards you are looking for. Misuse within the
> specified context can still occur.
>
> > Solving an organisational problem (RIRs are unwilling to cooperate) by
> > introducing cryptography problems is, as the kids say: This Ain't It,
> > Chief.
>
> I think it is helpful to be mindful of what various stakeholders might
> or might not be willing to implement, otherwise we continue to be stuck
> using IRR "remarks:" fields. As the kids say, perfect is the enemy of
> good. To be clear, we are not discussing a cryptanalytic problem, right?
>
> Kind regards,
>
> Job
>
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