Framework to Integrate Post-quantum Key Exchanges into Internet Key Exchange Protocol Version 2 (IKEv2)
draft-tjhai-ipsecme-hybrid-qske-ikev2-04

Document Type Active Internet-Draft (individual)
Last updated 2019-07-09
Stream (None)
Intended RFC status (None)
Formats plain text pdf htmlized bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state I-D Exists
Telechat date
Responsible AD (None)
Send notices to (None)
Internet Engineering Task Force                                 C. Tjhai
Internet-Draft                                              M. Tomlinson
Updates: 7296 (if approved)                                 Post-Quantum
Intended status: Standards Track                             G. Bartlett
Expires: January 10, 2020                                     S. Fluhrer
                                                           Cisco Systems
                                                            D. Van Geest
                                                       ISARA Corporation
                                                       O. Garcia-Morchon
                                                                 Philips
                                                              V. Smyslov
                                                              ELVIS-PLUS
                                                            July 9, 2019

  Framework to Integrate Post-quantum Key Exchanges into Internet Key
                  Exchange Protocol Version 2 (IKEv2)
                draft-tjhai-ipsecme-hybrid-qske-ikev2-04

Abstract

   This document describes how to extend Internet Key Exchange Protocol
   Version 2 (IKEv2) so that the shared secret exchanged between peers
   has resistance against quantum computer attacks.  The basic idea is
   to exchange one or more post-quantum key exchange payloads in
   conjunction with the existing (Elliptic Curve) Diffie-Hellman
   payload.

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 January 10, 2020.

Tjhai, et al.           Expires January 10, 2020                [Page 1]
Internet-Draft            Hybrid PQKE for IKEv2                July 2019

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
   (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 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.  Problem Description . . . . . . . . . . . . . . . . . . .   2
     1.2.  Proposed Extension  . . . . . . . . . . . . . . . . . . .   3
     1.3.  Changes . . . . . . . . . . . . . . . . . . . . . . . . .   4
     1.4.  Document Organization . . . . . . . . . . . . . . . . . .   5
   2.  Design Criteria . . . . . . . . . . . . . . . . . . . . . . .   5
   3.  The Framework of Hybrid Post-Quantum Key Exchange . . . . . .   7
     3.1.  Overall design  . . . . . . . . . . . . . . . . . . . . .   7
     3.2.  Overall Protocol  . . . . . . . . . . . . . . . . . . . .   8
       3.2.1.  IKE_SA_INIT Round: Negotiation  . . . . . . . . . . .   9
       3.2.2.  IKE_INTERMEDIATE Round: Additional Key Exchanges  . .  10
       3.2.3.  IKE_AUTH Exchange . . . . . . . . . . . . . . . . . .  11
       3.2.4.  CREATE_CHILD_SA Exchange  . . . . . . . . . . . . . .  11
   4.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  14
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  14
   6.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  16
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  16
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .  16
     7.2.  Informative References  . . . . . . . . . . . . . . . . .  16
   Appendix A.  Alternative Design . . . . . . . . . . . . . . . . .  17
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  21

1.  Introduction

1.1.  Problem Description

   Internet Key Exchange Protocol (IKEv2) as specified in RFC 7296
   [RFC7296] uses the Diffie-Hellman (DH) or Elliptic Curve Diffie-
   Hellman (ECDH) algorithm to establish a shared secret between an
   initiator and a responder.  The security of the DH and ECDH
   algorithms relies on the difficulty to solve a discrete logarithm
Show full document text