> > I don’t see any need for this in JOSE.
I agree with Neil. It fits right into COSE though. S pozdravem, *Filip Skokan* On Fri, 10 Apr 2026 at 09:08, Neil Madden <[email protected]> wrote: > I don’t see any need for this in JOSE. The lightweight nature is less > important there and otherwise Ascon provides no advantages over existing > AEADs. > > If it goes ahead, I would very much oppose any tag size less than 128 > bits. Short tags are only appropriate if there are alternative > rate-limiting controls in place, which is not an assumption made in JOSE > typically. > > Overall, this seems firmly in the COSE-specific camp. > > — Neil > > > On 10 Apr 2026, at 07:00, Dmytro OCHKAS <[email protected]> > wrote: > > > > Dear JOSE WG, > > > > I am a researcher at IMT Atlantique/IRISA in Rennes, France. In my team, > we are passionate about the security of constrained IoT networks. > > After NIST had selected Ascon algorithms as a lightweight security > standard, we came up with an Ascon over COSE and JOSE draft [1][2]. > > At IETF 123, the draft found some support within the COSE WG, so right > now we are working on its next version, which describes integrating > Ascon-Hash256 with JOSE and COSE. > > > > I am new to this working group, so I would appreciate getting your > opinions on the idea. > > Do you think it is pertinent to have Ascon in JOSE? If yes, should we > keep Ascon over COSE and JOSE in the same document? > > > > In fact, with my team, we will most likely be present at IETF 126, so we > are planning to request a time slot to present the draft. > > However, don't hesitate to start this discussion on the mailing list. > > > > In case you want to collaborate on the topic, feel free to contact me. > > > > All the best, > > Dmytro Ochkas > > > > [1] - > https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-232.pdf > > [2] - https://datatracker.ietf.org/doc/draft-ochkas-cose-ascon/ > > > > _______________________________________________ > > jose 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] >
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