Internet-Draft | IPSECKEY EdDSA | January 2023 |
Moskowitz, et al. | Expires 7 July 2023 | [Page] |
- Workgroup:
- IPSECME
- Internet-Draft:
- draft-moskowitz-ipsecme-ipseckey-eddsa-09
- Published:
- Intended Status:
- Standards Track
- Expires:
EdDSA value for IPSECKEY
Abstract
This document assigns a value for EdDSA Public Keys to the IPSECKEY IANA registry.¶
Status of This Memo
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This Internet-Draft will expire on 7 July 2023.¶
Copyright Notice
Copyright (c) 2023 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 (https://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 include Revised BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Revised BSD License.¶
1. Introduction
IPSECKEY [RFC4025) is a resource record (RR) for the Domain Name System (DNS) that is used to store public keys for use in IP security (IPsec) systems. The IPSECKEY RR relies on the IPSECKEY Algorithm Type Field registry [IANA-IPSECKEY] to enumerate the permissible formats for the public keys.¶
This document adds support for Edwards-Curve Digital Security Algorithm (EdDSA) public keys in the format defined in [RFC8080] to the IPSECKEY RR.¶
2. IPSECKEY support for EdDSA
When using the EdDSA public key in the IPSECKEY RR, then the value TBD1 is used as an algorithm and the public key is formatted as specified in Section 3 of the "Edwards-Curve Digital Security Algorithm (EdDSA) for DNSSEC" ([RFC8080]) document.¶
Value Description Format description Reference TBD1 An EdDSA Public Key [RFC8080], Sec. 3 [ThisRFC]¶
3. IANA Considerations
3.1. IANA IPSECKEY Registry Update
3.1.1. Reformat Algorithm Type Field Subregistry
This document requests IANA to add a new field "Format description" to the "Algorithm Type Field" subregistry of the "IPSECKEY Resource Record Parameters" [IANA-IPSECKEY]. Also, this document requests IANA to update the "Description" field in existing entries of that registry to explicitly state that is for "Public" keys:¶
Value Description Format description Reference 0 No Public key is present [RFC4025] 1 A DSA Public Key [RFC2536], Sec. 2 [RFC4025] 2 A RSA Public Key [RFC3110], Sec. 2 [RFC4025] 3 An ECDSA Public Key [RFC6605], Sec. 4 [RFC8005]¶
IANA is requested to update the reference of that registry by adding the RFC number to be assigned to this document.¶
3.1.2. Add to Algorithm Type Field Subregistry
Further, this document requests IANA to make the following addition to the "IPSECKEY Resource Record Parameters" [IANA-IPSECKEY] registry:¶
- IPSECKEY:
- This document defines the new IPSECKEY value TBD1 (suggested: 4) (Section 2) in the "Algorithm Type Field" subregistry of the "IPSECKEY Resource Record Parameters" registry.¶
Value Description Format description Reference TBD1 An EdDSA Public Key [RFC8080], Sec. 3 [ThisRFC]¶
5. References
5.1. Normative References
- [IANA-IPSECKEY]
- IANA, "IPSECKEY Resource Record Parameters", <https://www.iana.org/assignments/ipseckey-rr-parameters/ipseckey-rr-parameters.xhtml>.
- [RFC8080]
- Sury, O., Edmonds, R., and RFC Publisher, "Edwards-Curve Digital Security Algorithm (EdDSA) for DNSSEC", RFC 8080, DOI 10.17487/RFC8080, , <https://www.rfc-editor.org/info/rfc8080>.
5.2. Informative References
- [RFC4025]
- Richardson, M. and RFC Publisher, "A Method for Storing IPsec Keying Material in DNS", RFC 4025, DOI 10.17487/RFC4025, , <https://www.rfc-editor.org/info/rfc4025>.
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 ( 10 0 4 . 3WTXgUvpn1RlCXnm80gGY2LZ/ErUUEZtZ33IDi8yfhM= )¶
The associated EdDSA private key (in hex):¶
c7be71a45cbf87785f639dc4fd1c82637c21b5e02488939976ece32b9268d0b7¶
Acknowledgments
Thanks to Security Area director, Paul Wouters, for initial review. And Security Area director, Roman Danyliw, for final reviews and draft shepherding.¶