Use of the Walnut Digital Signature Algorithm with CBOR Object Signing and Encryption (COSE)
draft-atkins-suit-cose-walnutdsa-01
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2019-11-20
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ISE
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Informational
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Adrian Farrel
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Adrian Farrel <rfc-ise@rfc-editor.org>
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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
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at http://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on May 23, 2020.
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
Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
Atkins Expires May 23, 2020 [Page 1]
Internet-Draft WalnutDSA COSE Sigs November 2019
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. 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).
Atkins Expires May 23, 2020 [Page 2]
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