Use of the Walnut Digital Signature Algorithm with CBOR Object Signing and Encryption (COSE)
draft-atkins-suit-cose-walnutdsa-01

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Last updated 2019-11-20
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Internet Engineering Task Force                                D. Atkins
Internet-Draft                                      SecureRF Corporation
Intended status: Informational                         November 20, 2019
Expires: May 23, 2020

 Use of the Walnut Digital Signature Algorithm with CBOR Object Signing
                         and Encryption (COSE)
                  draft-atkins-suit-cose-walnutdsa-01

Abstract

   This document specifies the conventions for using the Walnut Digital
   Signature Algorithm (WalnutDSA) for digital signatures with the CBOR
   Object Signing and Encryption (COSE) syntax.  WalnutDSA is a
   lightweight, quantum-resistant signature scheme based on Group
   Theoretic Cryptography (see [WALNUTDSA] and [WALNUTSPEC]) with
   implementation and computational efficiency of signature verification
   in constrained environments, even on 8- and 16-bit platforms.

Status of This Memo

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Copyright Notice

   Copyright (c) 2019 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
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   include Simplified BSD License text as described in Section 4.e of
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Motivation  . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  WalnutDSA Algorithm Overview  . . . . . . . . . . . . . . . .   4
   4.  WalnutDSA Algorithm Identifiers . . . . . . . . . . . . . . .   4
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .   5
     5.1.  Implementation Security Considerations  . . . . . . . . .   5
     5.2.  Method Security Considerations  . . . . . . . . . . . . .   5
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   7
     6.1.  COSE Algorithms Registry Entry  . . . . . . . . . . . . .   7
     6.2.  COSE Key Types Registry Entry . . . . . . . . . . . . . .   7
     6.3.  COSE Key Type Parameter Registry Entries  . . . . . . . .   8
       6.3.1.  WalnutDSA Parameter: N  . . . . . . . . . . . . . . .   8
       6.3.2.  WalnutDSA Parameter: q  . . . . . . . . . . . . . . .   8
       6.3.3.  WalnutDSA Parameter: t-values . . . . . . . . . . . .   8
       6.3.4.  WalnutDSA Parameter: matrix 1 . . . . . . . . . . . .   9
       6.3.5.  WalnutDSA Parameter: permutation 1  . . . . . . . . .   9
       6.3.6.  WalnutDSA Parameter: matrix 2 . . . . . . . . . . . .   9
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  10
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .  10
     7.2.  Informative References  . . . . . . . . . . . . . . . . .  10
   Appendix A.  Acknowledgments  . . . . . . . . . . . . . . . . . .  11
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .  11

1.  Introduction

   This document specifies the conventions for using the Walnut Digital
   Signature Algorithm (WalnutDSA) [WALNUTDSA] for digital signatures
   with the CBOR Object Signing and Encryption (COSE) [RFC8152] syntax.
   WalnutDSA is a Group-Theoretic [GTC] signature scheme where signature
   validation is both computationally- and space-efficient, even on very
   small processors.  Unlike many hash-based signatures, there is no
   state required and no limit on the number of signatures that can be
   made.  WalnutDSA private and public keys are relatively small;
   however, the signatures are larger than RSA and ECC, but still
   smaller than most all other quantum-resistant schemes (including all
   hash-based schemes).

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