[openpgp] Re: [Technical Errata Reported] RFC9580 (846 6)

On Thu, Aug 28, 2025 at 1:26 PM Daniel Kahn Gillmor <[email protected]>
wrote:

> This report is correct: the text is a holdover from RFC 6637 and
> should have been updated with the new streamlined ECC formats added in
> RFC 9580.
>
> I think the text would be correct if we prefix the sentence with "For
> ECDH (18), ECDSA (19) and EdDSALegacy (22) public key algorithms, …"
>

I marked the errata as verified and left dkg's comment there for readers as
in how to read it.

Thanks all!

Paul

>
>     --dkg
>
>
> On Wed 2025-06-18 08:58:25 -0700, RFC Errata System wrote:
> > The following errata report has been submitted for RFC9580,
> > "OpenPGP".
> >
> > --------------------------------------
> > You may review the report below and at:
> > https://www.rfc-editor.org/errata/eid8466
> >
> > --------------------------------------
> > Type: Technical
> > Reported by: Heiko Schaefer <[email protected]>
> >
> > Section: 11.2
> >
> > Original Text
> > -------------
> > A point on an elliptic curve will always be represented on the wire
> > as an MPI.
> >
> > Corrected Text
> > --------------
> > TBD
> >
> > Notes
> > -----
> > This langauge doesn't acknowledge the native encoding of the new Ed/X
> 25519/448 variants.
> > Various language in the following sections of chapter 11 also seem to
> imply that all EC data is encoded in MPI format.
> >
> > In particular, in 11.3, all three entries in the table "OpenPGP Elliptic
> Curve Scalar Encodings Registry" seem to imply variants of MPI encoding.
> The case of "native" fixed length encoding seems to be missing.
> >
> > Instructions:
> > -------------
> > This erratum is currently posted as "Reported". (If it is spam, it
> > will be removed shortly by the RFC Production Center.) Please
> > use "Reply All" to discuss whether it should be verified or
> > rejected. When a decision is reached, the verifying party
> > will log in to change the status and edit the report, if necessary.
> >
> > --------------------------------------
> > RFC9580 (draft-ietf-openpgp-crypto-refresh-13)
> > --------------------------------------
> > Title               : OpenPGP
> > Publication Date    : July 2024
> > Author(s)           : P. Wouters, Ed., D. Huigens, J. Winter, Y. Niibe
> > Category            : PROPOSED STANDARD
> > Source              : Open Specification for Pretty Good Privacy
> > Stream              : IETF
> > Verifying Party     : IESG
>

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