Group Key Management using IKEv2
draft-ietf-ipsecme-g-ikev2-01

Document Type Active Internet-Draft (ipsecme WG)
Last updated 2020-07-12
Replaces draft-yeung-g-ikev2
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Network Working Group                                         V. Smyslov
Internet-Draft                                                ELVIS-PLUS
Obsoletes: 6407 (if approved)                                    B. Weis
Intended status: Standards Track                             Independent
Expires: January 14, 2021                                  July 13, 2020

                    Group Key Management using IKEv2
                     draft-ietf-ipsecme-g-ikev2-01

Abstract

   This document presents an extension to the Internet Key Exchange
   version 2 (IKEv2) protocol for the purpose of a group key management.
   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.

Status of This Memo

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   This Internet-Draft will expire on January 14, 2021.

Copyright Notice

   Copyright (c) 2020 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

Smyslov & Weis          Expires January 14, 2021                [Page 1]
Internet-Draft                   G-IKEv2                       July 2020

   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 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  . . . . . . . . . . . . .   6
       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  . . . . . . . . . . . .  12
       1.4.5.  Group Maintenance Channel . . . . . . . . . . . . . .  13
       1.4.6.  Counter-based modes of operation  . . . . . . . . . .  20
   2.  Group Key Management and Access Control . . . . . . . . . . .  22
     2.1.  Key Wrap Keys . . . . . . . . . . . . . . . . . . . . . .  23
       2.1.1.  Default Key Wrap Key  . . . . . . . . . . . . . . . .  23
     2.2.  GCKS Key Management Semantics . . . . . . . . . . . . . .  23
       2.2.1.  Forward Access Control Requirements . . . . . . . . .  24
     2.3.  GM Key Management Semantics . . . . . . . . . . . . . . .  25
     2.4.  Group SA Keys . . . . . . . . . . . . . . . . . . . . . .  26
   3.  Header and Payload Formats  . . . . . . . . . . . . . . . . .  27
     3.1.  G-IKEv2 Header  . . . . . . . . . . . . . . . . . . . . .  27
     3.2.  Group Identification Payload  . . . . . . . . . . . . . .  27
     3.3.  Security Association - GM Supported Transforms Payload  .  27
     3.4.  Group Security Association Payload  . . . . . . . . . . .  28
       3.4.1.  Group Policies  . . . . . . . . . . . . . . . . . . .  28
       3.4.2.  Group Security Association Policy Substructure  . . .  29
       3.4.3.  Group Associated Policy Substructure  . . . . . . . .  35
     3.5.  Key Download Payload  . . . . . . . . . . . . . . . . . .  37
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