I have tested my COSE HPKE implementation against Orie's implementation
and successfully tested HPKE-7 and HPKE-7-KE in all variants (i.e. with
and without externally provided aad and info). I will test other
ciphersuites as soon as those algorithm implementations become available.
As an insight from those tests I will update the examples in the draft
by adding externally provided aad and info. I will do this asap.
Regarding the JOSE HPKE I have tested my implementation against Filip
Sokan's implementation for HPKE-0, HPKE-1, HPKE-2, HPKE-3 and HPKE-7
worked (and the corresponding key encryption modes). I also verified the
examples in the draft.
In a nutshell: I believe the documents are in good shape.
Ciao
Hannes
Am 27.01.2026 um 19:13 schrieb Michael Jones:
I believe this specification is ready for publication. It incorporates
substantive working group feedback and I believe embodies solid
consensus decisions. There are multiple independent interoperable
implementations.
It is well aligned with the JOSE HPKE specification
https://datatracker.ietf.org/doc/draft-ietf-jose-hpke-encrypt/.
There are other specifications waiting for this one to finish.
Let's get it done!
-- Mike
*From:*Ivaylo Petrov <[email protected]>
*Sent:* Wednesday, January 21, 2026 12:14 PM
*To:* cose <[email protected]>; Cose Chairs Wg <[email protected]>;
[email protected]
*Cc:* [email protected]
*Subject:* WGLC: draft-ietf-cose-hpke-20 (Ends 2026-02-11)
Dear COSE WG members,
This message starts a WG Last Call (WGLC) for:
https://datatracker.ietf.org/doc/draft-ietf-cose-hpke/
Please review and indicate your support or objection to proceeding
with the
publication of this document by replying to this email keeping
[email protected]
in copy. Please provide rationale for support and explanations or
suggestions
for objections.
Please note there is a parallel call going on in JOSE working group
for the document:
https://datatracker.ietf.org/doc/draft-ietf-jose-hpke-encrypt/
Please consider reviewing both documents.
This Working Group Last Call ends on 2026-02-11
Thank you,
-- Mike and Ivo
COSE co-chairs
Please note:
Authors, and WG participants in general, are reminded of the Intellectual
Property Rights (IPR) disclosure obligations described in BCP 79 [1].
Appropriate IPR disclosures required for full conformance with the
provisions
of BCP 78 [1] and BCP 79 [2] must be filed, if you are aware of any.
Sanctions available for application to violators of IETF IPR Policy can be
found at [3].
[1] https://datatracker.ietf.org/doc/bcp78/
[2] https://datatracker.ietf.org/doc/bcp79/
[3] https://datatracker.ietf.org/doc/rfc6701/
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