I hear you John, LAKE needs the COSE-specific parts from draft-ietf-jose-pqc-kem, not the JOSE ones, correct?
Although I don't understand how constraints play a role in the suitability of draft-ietf-cose-hpke with additional Pure PQ algorithms vs the COSE parts of the draft-ietf-jose-pqc-kem draft, the underlying ops are the give or take the same just packaged differently, would you mind elaborating? Or is it purely timing in that draft-ietf-jose-pqc-kem seems closer than draft-ietf-cose-hpke with additional Pure PQ algs coming from elsewhere? S pozdravem, *Filip Skokan* On Fri, 6 Mar 2026 at 17:33, John Mattsson <john.mattsson= [email protected]> wrote: > Adding COSE, LAKE > > LAKE WG is counting on draft-ietf-jose-pqc-kem, It is referenced by several > drafts, and has been discussed several times. > > draft-ietf-cose-hpke is not suitable for LAKE and many other constrained > uses of COSE. > > When I reviewed it last year it looked very much ready for WGLC. I would > suggest to start WGLC. > > Cheers, > John Preuß Mattsson > > *From: *Aritra Banerjee (Nokia) <[email protected]> > *Date: *Wednesday, 11 February 2026 at 18:20 > *To: *[email protected] <[email protected]> > *Subject: *[jose] Re: Proposal: Use HPKE for JWE PQ/PQT straight away > > Hello, > > The draft-ietf-jose-pqc-kem establishes a clear, HPKE-independent pathway > for systems aiming to transition to PQC-only Key Encapsulation Mechanisms > (KEMs). It does not depend on the new modes defined in > draft-ietf-jose-hpke-encrypt. Instead, draft-ietf-jose-pqc-kem mirrors the > original JWE ECDH-style key agreement model, making it the natural > post-quantum analogue of ECDH-ES. > > While HPKE-based JOSE provides valuable capabilities, particularly for > PQ/T use cases, deployments seeking a PQC-only key establishment mechanism > should not be required to rely on the new modes introduced in jose-hpke. > This draft supports a minimal-change transition to PQC-only KEMs while > remaining aligned with the existing JWE model, enabling a straightforward > and consistent migration path. > > Best, > Aritra. > _______________________________________________ > COSE mailing list -- [email protected] > To unsubscribe send an email to [email protected] >
_______________________________________________ jose mailing list -- [email protected] To unsubscribe send an email to [email protected]
