EdDSA for DNSSEC
draft-ietf-curdle-dnskey-eddsa-03

Document Type Active Internet-Draft (curdle WG)
Last updated 2017-01-11 (latest revision 2016-12-16)
Replaces draft-ietf-curdle-dnskey-ed448, draft-ietf-curdle-dnskey-ed25519
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Internet Engineering Task Force                                  O. Sury
Internet-Draft                                                    CZ.NIC
Intended status: Standards Track                              R. Edmonds
Expires: June 20, 2017                                            Fastly
                                                       December 17, 2016

                            EdDSA for DNSSEC
                   draft-ietf-curdle-dnskey-eddsa-03

Abstract

   This document describes how to specify EdDSA keys and signatures in
   DNS Security (DNSSEC).  It uses the Edwards-curve Digital Security
   Algorithm (EdDSA) with the choice of two curves, Ed25519 and Ed448.

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
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   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 June 20, 2017.

Copyright Notice

   Copyright (c) 2016 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
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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.

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Requirements Language . . . . . . . . . . . . . . . . . . . .   2
   3.  DNSKEY Resource Records . . . . . . . . . . . . . . . . . . .   2
   4.  RRSIG Resource Records  . . . . . . . . . . . . . . . . . . .   3
   5.  Algorithm Number for DS, DNSKEY and RRSIG Resource Records  .   3
   6.  Examples  . . . . . . . . . . . . . . . . . . . . . . . . . .   3
     6.1.  Ed25519 Examples  . . . . . . . . . . . . . . . . . . . .   3
     6.2.  Ed448 Examples  . . . . . . . . . . . . . . . . . . . . .   4
   7.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   6
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   6
   9.  Security Considerations . . . . . . . . . . . . . . . . . . .   6
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .   7
     10.1.  Normative References . . . . . . . . . . . . . . . . . .   7
     10.2.  Informative References . . . . . . . . . . . . . . . . .   7
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   8

1.  Introduction

   DNSSEC, which is broadly defined in [RFC4033], [RFC4034], and
   [RFC4035], uses cryptographic keys and digital signatures to provide
   authentication of DNS data.  Currently, the most popular signature
   algorithm in use is RSA.  GOST ([RFC5933]) and NIST-specified
   elliptic curve cryptography ([RFC6605]) are also standardized.

   [I-D.irtf-cfrg-eddsa] describes the elliptic curve signature system
   EdDSA and recommends two curves, Ed25519 and Ed448.

   This document defines the use of DNSSEC's DS, DNSKEY, and RRSIG
   resource records (RRs) with a new signing algorithm, Edwards-curve
   Digital Signature Algorithm (EdDSA) using a choice of two instances:
   Ed25519 and Ed448.

2.  Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in [RFC2119].

3.  DNSKEY Resource Records

   An Ed25519 public key consists of a 32-octet value, which is encoded
   into the Public Key field of a DNSKEY resource record as a simple bit
   string.  The generation of a public key is defined in Section 5.1.5
   in [I-D.irtf-cfrg-eddsa].

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