Use of the Walnut Digital Signature Algorithm with CBOR Object Signing and Encryption (COSE)
draft-atkins-suit-cose-walnutdsa-00

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Internet Engineering Task Force                                D. Atkins
Internet-Draft                                      SecureRF Corporation
Intended status: Standards Track                            May 13, 2019
Expires: November 14, 2019

 Use of the Walnut Digital Signature Algorithm with CBOR Object Signing
                         and Encryption (COSE)
                  draft-atkins-suit-cose-walnutdsa-00

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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   This Internet-Draft will expire on November 14, 2019.

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
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Algorithm Security Considerations . . . . . . . . . . . .   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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