]> ML-DSA for JOSE and COSE mesur.io
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Security CBOR Object Signing and Encryption JOSE COSE PQC DILITHIUM ML-DSA This document describes JOSE and COSE serializations for ML-DSA, which was derived from Dilithium, a Post-Quantum Cryptography (PQC) based digital signature scheme. This document does not define any new cryptography, only seralizations of existing cryptographic systems described in . Note to RFC Editor: This document should not proceed to AUTH48 until NIST completes paramater tuning and selection as a part of the PQC standardization process. About This Document The latest revision of this draft can be found at . Status information for this document may be found at . Discussion of this document takes place on the CBOR Object Signing and Encryption Working Group mailing list (), which is archived at . Subscribe at . Source for this draft and an issue tracker can be found at .
Introduction ML-DSA is derived from Version 3.1 of CRYSTALS-DILITHIUM, as noted in . CRYSTALS-DILITHIUM is one of the post quantum cryptography algorithms selected in . TODO: Add complete examples for ML-DSA-44, ML-DSA-65, ML-DSA-87.
Terminology The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in BCP 14 when, and only when, they appear in all capitals, as shown here.
The ML-DSA Algorithm Family The ML-DSA Signature Scheme is paramaterized to support different security level. This document requests the registration of the following algorithms in : JOSE algorithms for ML-DSA
Name alg Description
ML-DSA-44 ML-DSA-44 JSON Web Signature Algorithm for ML-DSA-44
ML-DSA-65 ML-DSA-65 JSON Web Signature Algorithm for ML-DSA-65
ML-DSA-87 ML-DSA-87 JSON Web Signature Algorithm for ML-DSA-87
This document requests the registration of the following algorithms in : COSE algorithms for ML-DSA
Name alg Description
ML-DSA-44 TBD (requested assignment -48) CBOR Object Signing Algorithm for ML-DSA-44
ML-DSA-65 TBD (requested assignment -49) CBOR Object Signing Algorithm for ML-DSA-65
ML-DSA-87 TBD (requested assignment -50) CBOR Object Signing Algorithm for ML-DSA-87
The ML-DSA Key Type Private and Public Keys are produced to enable the sign and verify opertaions for each of the ML-DSA Algorithms. This document requests the registration of the following key types in : JSON Web Key Type for ML-DSA
Name kty Description
ML-DSA ML-DSA JSON Web Key Type for the ML-DSA Algorithm Family.
This document requests the registration of the following algorithms in : COSE Key Type for ML-DSA
Name kty Description
ML-DSA TBD (requested assignment 7) COSE Key Type for the ML-DSA Algorithm Family.
Security Considerations TODO Security
IANA Considerations
Additions to Existing Registries
New COSE Algorithms
  • Name: ML-DSA-44
  • Label: TBD (requested assignment -48)
  • Value type: int
  • Value registry:
  • Description: CBOR Object Signing Algorithm for ML-DSA-44
  • Name: ML-DSA-65
  • Label: TBD (requested assignment -49)
  • Value type: int
  • Value registry:
  • Description: CBOR Object Signing Algorithm for ML-DSA-65
  • Name: ML-DSA-87
  • Label: TBD (requested assignment -50)
  • Value type: int
  • Value registry:
  • Description: CBOR Object Signing Algorithm for ML-DSA-87
New COSE Key Types
  • Name: ML-DSA
  • Label: TBD (requested assignment 7)
  • Value type: int
  • Value registry:
  • Description: COSE Key Type for the ML-DSA Algorithm Family
New JOSE Algorithms
  • Name: ML-DSA-44
  • Value registry: Algorithms
  • Description: JSON Web Signature Algorithm for ML-DSA-44
  • Name: ML-DSA-65
  • Value registry: Algorithms
  • Description: JSON Web Signature Algorithm for ML-DSA-65
  • Name: ML-DSA-87
  • Value registry: Algorithms
  • Description: JSON Web Signature Algorithm for ML-DSA-87
New JOSE Key Types
  • Name: ML-DSA
  • Value registry: Algorithms
  • Description: JSON Web Key Type for the ML-DSA Algorithm Family.
References Normative References JSON Object Signing and Encryption (JOSE) IANA CBOR Object Signing and Encryption (COSE) IANA Key words for use in RFCs to Indicate Requirement Levels In many standards track documents several words are used to signify the requirements in the specification. These words are often capitalized. This document defines these words as they should be interpreted in IETF documents. This document specifies an Internet Best Current Practices for the Internet Community, and requests discussion and suggestions for improvements. Ambiguity of Uppercase vs Lowercase in RFC 2119 Key Words RFC 2119 specifies common key words that may be used in protocol specifications. This document aims to reduce the ambiguity by clarifying that only UPPERCASE usage of the key words have the defined special meanings. Informative References Module-Lattice-Based Digital Signature Standard n.d. Selected Algorithms 2022 n.d.
Examples
JOSE
Key Pair
Example ML-DSA-44 Private JSON Web Key
Example ML-DSA-44 Public JSON Web Key
Thumbprint URI TODO
JSON Web Signature
Example ML-DSA-44 Decoded Protected Header
Example ML-DSA-44 Compact JSON Web Signature
COSE
Key Pair
Example ML-DSA-44 Private COSE Key
Example ML-DSA-44 Public COSE Key
Thumbprint URI TODO
COSE Sign 1
Example ML-DSA-44 COSE Protected Header
Example ML-DSA-44 COSE Sign 1
Acknowledgments TODO acknowledge.