EdDSA value for IPSECKEY
draft-moskowitz-ipsecme-ipseckey-eddsa-01

IPSECME                                                     R. Moskowitz
Internet-Draft                                            HTT Consulting
Intended status: Standards Track                              T. Kivinen
Expires: 6 February 2023                                   5 August 2022

                        EdDSA value for IPSECKEY
               draft-moskowitz-ipsecme-ipseckey-eddsa-01

Abstract

   This document assigns a value for EdDSA Public Keys to the IPSECKEY
   IANA registry.

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   This Internet-Draft will expire on 6 February 2023.

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terms and Definitions . . . . . . . . . . . . . . . . . . . .   2
     2.1.  Requirements Terminology  . . . . . . . . . . . . . . . .   2
   3.  IPSECKEY support for EdDSA  . . . . . . . . . . . . . . . . .   2
   4.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   3
     4.1.  IANA IPSECKEY Registry Update . . . . . . . . . . . . . .   3
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .   3
   6.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   3
     6.1.  Normative References  . . . . . . . . . . . . . . . . . .   3
     6.2.  Informative References  . . . . . . . . . . . . . . . . .   3
   Appendix A.  IPSECKEY EdDSA example . . . . . . . . . . . . . . .   4
   Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . .   4
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   4

1.  Introduction

   The IPSECKEY IANA Registry specifically enumerates the various
   Algorithm Types used.  This document adds support for the EdDSA
   algorithm's Public Keys in IPSECKEY.

   The IPSECKEY RR [RFC4025] defines the 'Algorithm Type' for specifying
   the PK Algorithm.  Herein we are adding the EdDSA algorithm.

2.  Terms and Definitions

2.1.  Requirements 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 [RFC2119] [RFC8174] when, and only when, they appear in all
   capitals, as shown here.

3.  IPSECKEY support for EdDSA

   The new EdDSA value uses [RFC8080] for the IPSECKEY encoding:

      Value  Description

      TBD2 (suggested value 4)
             An EdDSA Public key is present, in the format defined
             in [RFC8080]

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4.  IANA Considerations

4.1.  IANA IPSECKEY Registry Update

   This document requests IANA to make the following change to the
   "IPSECKEY Resource Record Parameters" [IANA-IPSECKEY] registry:

   IPSECKEY:
      This document defines the new IPSECKEY value TBD2 (suggested: 4)
      (Section 3) in the "Algorithm Type Field" subregistry of the
      "IPSECKEY Resource Record Parameters" registry.

      Value  Description    Reference

      TBD2 (suggested value 4)   [This]
             An EdDSA Public key is present, in the format defined
             in [RFC8080]

5.  Security Considerations

   TBD

6.  References

6.1.  Normative References

   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate
              Requirement Levels", BCP 14, RFC 2119,
              DOI 10.17487/RFC2119, March 1997,
              <https://www.rfc-editor.org/info/rfc2119>.

   [RFC4025]  Richardson, M., "A Method for Storing IPsec Keying
              Material in DNS", RFC 4025, DOI 10.17487/RFC4025, March
              2005, <https://www.rfc-editor.org/info/rfc4025>.

   [RFC8174]  Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC
              2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174,
              May 2017, <https://www.rfc-editor.org/info/rfc8174>.

6.2.  Informative References

   [IANA-IPSECKEY]
              IANA, "IPSECKEY Resource Record Parameters",
              <https://www.iana.org/assignments/ipseckey-rr-parameters/
              ipseckey-rr-parameters.xhtml>.

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   [RFC8080]  Sury, O. and R. Edmonds, "Edwards-Curve Digital Security
              Algorithm (EdDSA) for DNSSEC", RFC 8080,
              DOI 10.17487/RFC8080, February 2017,
              <https://www.rfc-editor.org/info/rfc8080>.

Appendix A.  IPSECKEY EdDSA example

   The following is an example of an IPSECKEY RR with an EdDSA public
   key base64 encode with no gateway:

      foo.example.com IN IPSECKEY
      (a 0 4 3WTXgUvpn1RlCXnm80gGY2LZ/ErUUEZtZ33IDi8yfhM= )

   The associated EdDSA private key (in hex):

      c7be71a45cbf87785f639dc4fd1c82637c21b5e02488939976ece32b9268d0b7

Acknowledgments

   Thanks to Security Area director, Paul Wouters, for initial review.

Authors' Addresses

   Robert Moskowitz
   HTT Consulting
   Oak Park, MI 48237
   United States of America
   Email: rgm@labs.htt-consult.com

   Tero Kivinen
   Email: kivinen@iki.fi

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