Brian: Why do you think 64 bit authentication tags are desirable? I would be much more comfortable with 96 bits.
Russ > On Mar 23, 2026, at 10:47 AM, Brian Sipos <[email protected]> wrote: > > COSE WG, > I have updated the individual draft referenced below based on the feedback so > far. For the explanatory updates I think the new text is more clear about > what is meant and about which sections some statements belong in. Part of > this update adds truncated MAC tags, as suggested, which align with the > strengths of existing registered MAC algorithms. > > With these changes, and from comments received so far, I think this draft is > ready for an adoption call. Thanks for the support so far! > > Brian S. > > ---------- Forwarded message --------- > From: <[email protected] <mailto:[email protected]>> > Date: Mon, Mar 23, 2026 at 10:30 AM > Subject: New Version Notification for draft-sipos-cose-cmac-01.txt > To: Brian Sipos <[email protected] > <mailto:brian.sipos%[email protected]>> > > > A new version of Internet-Draft draft-sipos-cose-cmac-01.txt has been > successfully submitted by Brian Sipos and posted to the > IETF repository. > > Name: draft-sipos-cose-cmac > Revision: 01 > Title: AES-CMAC for COSE > Date: 2026-03-23 > Group: Individual Submission > Pages: 7 > URL: https://www.ietf.org/archive/id/draft-sipos-cose-cmac-01.txt > Status: https://datatracker.ietf.org/doc/draft-sipos-cose-cmac/ > HTML: https://www.ietf.org/archive/id/draft-sipos-cose-cmac-01.html > HTMLized: https://datatracker.ietf.org/doc/html/draft-sipos-cose-cmac > Diff: https://author-tools.ietf.org/iddiff?url2=draft-sipos-cose-cmac-01 > > Abstract: > > This document registers code points for using the Advanced Encryption > Standard (AES) block cipher in Cipher-based Message Authentication > Code (CMAC) mode within CBOR Object Signing and Encryption (COSE) > messages. Specifically, these uses are for computing authentication > tag values with no additional parameters. > > > > The IETF Secretariat > > > _______________________________________________ > COSE mailing list -- [email protected] > To unsubscribe send an email to [email protected]
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