Network Working Group V. Smyslov Internet-Draft ELVIS-PLUS Intended status: Standards Track Y. Nir Expires: 30 March 2026 Dell Technologies 26 September 2025 Using Classic McEliece in the Internet Key Exchange Protocol Version 2 (IKEv2) draft-smyslov-ipsecme-ikev2-mceliece-00 Abstract This document specifies how Classic McEliece Key Encapsulation Mechanism (KEM) is used in IKEv2. 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 https://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 30 March 2026. Copyright Notice Copyright (c) 2025 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. Smyslov & Nir Expires 30 March 2026 [Page 1] Internet-Draft Classic McEliece in IKEv2 September 2025 Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 2. Terminology and Notation . . . . . . . . . . . . . . . . . . 2 3. Classic McEliece KEM . . . . . . . . . . . . . . . . . . . . 2 4. Using Classic McEliece in IKEv2 . . . . . . . . . . . . . . . 2 5. Security Considerations . . . . . . . . . . . . . . . . . . . 2 6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 2 7. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 2 8. References . . . . . . . . . . . . . . . . . . . . . . . . . 2 8.1. Normative References . . . . . . . . . . . . . . . . . . 2 8.2. Informative References . . . . . . . . . . . . . . . . . 3 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 4 1. Introduction 2. Terminology and Notation 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. It is assumed that readers are familiar with the IKEv2 protocol [RFC7296]. 3. Classic McEliece KEM 4. Using Classic McEliece in IKEv2 5. Security Considerations 6. IANA Considerations 7. Acknowledgements 8. References 8.1. 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, . Smyslov & Nir Expires 30 March 2026 [Page 2] Internet-Draft Classic McEliece in IKEv2 September 2025 [RFC8174] Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC 2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174, May 2017, . [RFC7296] Kaufman, C., Hoffman, P., Nir, Y., Eronen, P., and T. Kivinen, "Internet Key Exchange Protocol Version 2 (IKEv2)", STD 79, RFC 7296, DOI 10.17487/RFC7296, October 2014, . [RFC7383] Smyslov, V., "Internet Key Exchange Protocol Version 2 (IKEv2) Message Fragmentation", RFC 7383, DOI 10.17487/RFC7383, November 2014, . [RFC9242] Smyslov, V., "Intermediate Exchange in the Internet Key Exchange Protocol Version 2 (IKEv2)", RFC 9242, DOI 10.17487/RFC9242, May 2022, . [RFC9370] Tjhai, CJ., Tomlinson, M., Bartlett, G., Fluhrer, S., Van Geest, D., Garcia-Morchon, O., and V. Smyslov, "Multiple Key Exchanges in the Internet Key Exchange Protocol Version 2 (IKEv2)", RFC 9370, DOI 10.17487/RFC9370, May 2023, . [I-D.josefsson-mceliece] Josefsson, S., "Classic McEliece", Work in Progress, Internet-Draft, draft-josefsson-mceliece-03, 7 July 2025, . [I-D.nir-ipsecme-big-payload] Nir, Y., "A Larger Internet Key Exchange version 2 (IKEv2) Payload", Work in Progress, Internet-Draft, draft-nir- ipsecme-big-payload-06, 14 September 2025, . 8.2. Informative References [RFC9329] Pauly, T. and V. Smyslov, "TCP Encapsulation of Internet Key Exchange Protocol (IKE) and IPsec Packets", RFC 9329, DOI 10.17487/RFC9329, November 2022, . [I-D.smyslov-ipsecme-ikev2-reliable-transport] Smyslov, V. and T. Reddy.K, "Separate Transports for IKE and ESP", Work in Progress, Internet-Draft, draft-smyslov- Smyslov & Nir Expires 30 March 2026 [Page 3] Internet-Draft Classic McEliece in IKEv2 September 2025 ipsecme-ikev2-reliable-transport-04, 15 April 2025, . Authors' Addresses Valery Smyslov ELVIS-PLUS Russian Federation Email: svan@elvis.ru Yoav Nir Dell Technologies 9 Andrei Sakharov St Haifa 3190500 Israel Email: ynir.ietf@gmail.com Smyslov & Nir Expires 30 March 2026 [Page 4]