[openpgp] Re: Forwarding for v6 follow-up

On 31 Jul 2025, at 00:07, Daniel Kahn Gillmor <[email protected]> wrote:
> 
> On Fri 2025-07-25 17:17:06 +0000, Aron Wussler wrote:
>> 
>> 
>> We can re-use the PKESK and add the needed information into the
>> algorithm specific data. No additional packet needed, just define a
>> new codepoint e.g. "Forwarded X25519" (note that not all algorithms
>> allow forwarding) so we'd have to do just a couple.
> 
> Thanks for this interesting choice.
> 
> As an implementer/maintainer/debugger i think i prefer the new algorithm
> ID over FKESK.

I concur; I think it’s also cleaner from a protocol design point of view, and much less likely to trigger interop issues - unknown algorithm code points are generally handled more gracefully than unknown packet types.

A

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