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

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, …"

    --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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