AES-CMAC for COSE

The CBOR Object Signing and Encryption (COSE) specification defines structures for generating, conveying, and verifying Message Authentication Code (MAC) tags. This document registers code points for using the Advanced Encryption Standard (AES) block cipher in Cipher-based Message Authentication Code (CMAC) mode within those COSE structures. Specifically, these uses are for computing MAC tag values with no additional parameters.