Question about the adjustment of MPI values on gpg --import

[Wiktor Kwapisiewicz]

On 20.11.2024 08:31, NIIBE Yutaka wrote:
> At that time, my intention was introducing Ed448 and X448 and making the
> things aligned (while the specification for EdSOMETHING for OpenPGP was
> not yet finished).  My intention was interoperability actually, but
> alas, opposite outcome.

Thanks for the explanation, Niibe. I understand your intention now.

Alternative design (which sadly wouldn't be backwards compatible) would 
be to avoid the MPI altogether and just have a fixed size field:

https://www.rfc-editor.org/rfc/rfc9580#name-algorithm-specific-fields-for-ed2

I'm just noting that for completeness, not suggesting you do that :)

Thanks again and have a nice day!

Kind regards,
Wiktor