mesur.io Transmute Google IBM NXP This document describes JSON and CBOR serializations for CRYSTALS Dilithium, a Post-Quantum Cryptography (PQC) based suite. This document does not define any new cryptography, only seralizations of existing cryptographic systems. This document registers key types for JOSE and COSE, specifically MLWE. Key types in this document are specified by the cryptographic algorithm family in use by a particular algorithm as discussed in RFC7517. This document registers signature algorithms types for JOSE and COSE, specifically CRYDI3 and others as required for use of various parameterizations of the post-quantum signature scheme CRYSTALS Dilithium. Note to RFC Editor: CRYSTALS Dilithium is described and noted as a part of the 2022 PQC Selected Digital Signature Algorithims (https://csrc.nist.gov/Projects/post-quantum-cryptography/selected- algorithms-2022) As a result, this document should not be proceed to AUTH48 until NIST completes paramter tuning and selection as a part of the PQC (https://csrc.nist.gov/projects/post-quantum-cryptography) standardization process.