Group Key Management using IKEv2
draft-yeung-g-ikev2-16

Document Type Active Internet-Draft (ipsecme WG)
Last updated 2019-11-16 (latest revision 2019-07-08)
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Network Working Group                                            B. Weis
Internet-Draft                                               Independent
Obsoletes: 6407 (if approved)                                 V. Smyslov
Intended status: Standards Track                              ELVIS-PLUS
Expires: January 9, 2020                                    July 8, 2019

                    Group Key Management using IKEv2
                         draft-yeung-g-ikev2-16

Abstract

   This document presents a set of IKEv2 exchanges that comprise a group
   key management protocol.  The protocol is in conformance with the
   Multicast Security (MSEC) key management architecture, which contains
   two components: member registration and group rekeying.  Both
   components require a Group Controller/Key Server to download IPsec
   group security associations to authorized members of a group.  The
   group members then exchange IP multicast or other group traffic as
   IPsec packets.  This document obsoletes RFC 6407.

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   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
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Weis & Smyslov           Expires January 9, 2020                [Page 1]
Internet-Draft                   G-IKEv2                       July 2019

   to this document.  Code Components extracted from this document must
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Table of Contents

   1.  Introduction and Overview . . . . . . . . . . . . . . . . . .   3
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . .   5
     1.2.  G-IKEv2 Integration into IKEv2 Protocol . . . . . . . . .   5
       1.2.1.  G-IKEv2 Transport and Port  . . . . . . . . . . . . .   5
       1.2.2.  IKEv2 Header Initialization . . . . . . . . . . . . .   6
     1.3.  G-IKEv2 Protocol  . . . . . . . . . . . . . . . . . . . .   6
       1.3.1.  G-IKEv2 Payloads  . . . . . . . . . . . . . . . . . .   6
     1.4.  G-IKEv2 Member Registration and Secure Channel
           Establishment . . . . . . . . . . . . . . . . . . . . . .   7
       1.4.1.  GSA_AUTH exchange . . . . . . . . . . . . . . . . . .   7
       1.4.2.  GSA_REGISTRATION Exchange . . . . . . . . . . . . . .   9
       1.4.3.  GM Registration Operations  . . . . . . . . . . . . .  10
       1.4.4.  GCKS Registration Operations  . . . . . . . . . . . .  11
       1.4.5.  Group Maintenance Channel . . . . . . . . . . . . . .  12
       1.4.6.  Counter-based modes of operation  . . . . . . . . . .  19
     1.5.  Interaction with IKEv2 Protocol Extensions  . . . . . . .  21
       1.5.1.  Postquantum Preshared Keys for IKEv2  . . . . . . . .  21
   2.  Header and Payload Formats  . . . . . . . . . . . . . . . . .  23
     2.1.  The G-IKEv2 Header  . . . . . . . . . . . . . . . . . . .  23
     2.2.  Group Identification (IDg) Payload  . . . . . . . . . . .  24
     2.3.  Security Association - GM Supported Transforms (SAg)  . .  24
     2.4.  Group Security Association Payload  . . . . . . . . . . .  24
       2.4.1.  GSA Policy  . . . . . . . . . . . . . . . . . . . . .  24
       2.4.2.  KEK Policy  . . . . . . . . . . . . . . . . . . . . .  26
       2.4.3.  GSA TEK Policy  . . . . . . . . . . . . . . . . . . .  29
       2.4.4.  GSA Group Associated Policy . . . . . . . . . . . . .  33
     2.5.  Key Download Payload  . . . . . . . . . . . . . . . . . .  34
       2.5.1.  TEK Download Type . . . . . . . . . . . . . . . . . .  36
       2.5.2.  KEK Download Type . . . . . . . . . . . . . . . . . .  37
       2.5.3.  LKH Download Type . . . . . . . . . . . . . . . . . .  38
       2.5.4.  SID Download Type . . . . . . . . . . . . . . . . . .  40
     2.6.  Delete Payload  . . . . . . . . . . . . . . . . . . . . .  42
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