On Mon, Sep 26, 2022 at 01:05:27PM -0500, Orie Steele wrote: > > PQC public key encodings in COSE and then again in HPKE? > > Then, we have even more encodings of the same information. > > This is also my concern... But noting, > https://datatracker.ietf.org/doc/draft-prorock-cose-post-quantum-signatures/ > does not cover any relationship to HPKE... > We remained confused by the guidance being shared regarding COSE_Key and > registry requirements. > > I would expect ANY new 'alg' values to have some mapping to JWK / CWK.
This is _false_ for ephemeral keys. For example, Kyber can not have such mapping (outside very nasty hacks). And similar holds for HPKE in general: Mapping of encapsulated key to JWK / CWK (without very nasty hacks) is only possible in special cases. -Ilari _______________________________________________ COSE mailing list [email protected] https://www.ietf.org/mailman/listinfo/cose
