Group Key Management using IKEv2
draft-yeung-g-ikev2-10

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Last updated 2016-03-21
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Network Working Group                                            B. Weis
Internet-Draft                                             Cisco Systems
Intended status: Standards Track                                  Y. Nir
Expires: September 22, 2016       Check Point Software Technologies Ltd.
                                                              V. Smyslov
                                                              ELVIS-PLUS
                                                          March 21, 2016

                    Group Key Management using IKEv2
                         draft-yeung-g-ikev2-10

Abstract

   This document presents a new group key distribution protocol.  The
   protocol is in conformance with MSEC key management architecture it
   contains two components: member registration and group rekeying, both
   downloading group security associations from the Group Controller Key
   Server to a member of the group.  The new protocol is similar to
   IKEv2 in message and payload formats as well as message semantics.

Status of This Memo

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   This Internet-Draft will expire on September 22, 2016.

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   Copyright (c) 2016 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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   carefully, as they describe your rights and restrictions with respect

Weis, et al.           Expires September 22, 2016               [Page 1]
Internet-Draft                   G-IKEv2                      March 2016

   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
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Table of Contents

   1.  Introduction and Overview . . . . . . . . . . . . . . . . . .   3
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . .   4
     1.2.  Why do we need another GSA protocol?  . . . . . . . . . .   4
     1.3.  G-IKEv2 Payloads  . . . . . . . . . . . . . . . . . . . .   4
   2.  G-IKEv2 integration into IKEv2 protocol . . . . . . . . . . .   5
     2.1.  UDP port  . . . . . . . . . . . . . . . . . . . . . . . .   5
   3.  G-IKEv2 Protocol  . . . . . . . . . . . . . . . . . . . . . .   5
     3.1.  G-IKEv2 member registration and secure channel
           establishment . . . . . . . . . . . . . . . . . . . . . .   5
       3.1.1.  GSA_AUTH exchange . . . . . . . . . . . . . . . . . .   6
       3.1.2.  GSA_REGISTRATION Exchange . . . . . . . . . . . . . .   7
       3.1.3.  IKEv2 Header Initialization . . . . . . . . . . . . .   8
       3.1.4.  GM Registration Operations  . . . . . . . . . . . . .   8
       3.1.5.  GCKS Registration Operations  . . . . . . . . . . . .   9
     3.2.  Counter-based modes of operation  . . . . . . . . . . . .   9
     3.3.  G-IKEv2 group maintenance channel . . . . . . . . . . . .  11
       3.3.1.  G-IKEv2 GSA_REKEY exchange  . . . . . . . . . . . . .  11
       3.3.2.  Forward and Backward Access Control . . . . . . . . .  13
       3.3.3.  Forward Access Control Requirements . . . . . . . . .  13
       3.3.4.  Deletion of SAs . . . . . . . . . . . . . . . . . . .  14
       3.3.5.  GSA_REKEY GCKS Operations . . . . . . . . . . . . . .  14
       3.3.6.  GSA_REKEY GM Operations . . . . . . . . . . . . . . .  15
   4.  Header and Payload Formats  . . . . . . . . . . . . . . . . .  16
     4.1.  The G-IKEv2 Header  . . . . . . . . . . . . . . . . . . .  16
     4.2.  Group Identification (IDg) Payload  . . . . . . . . . . .  16
     4.3.  Group Security Association Payload  . . . . . . . . . . .  16
       4.3.1.  GSA policy  . . . . . . . . . . . . . . . . . . . . .  17
     4.4.  KEK Policy  . . . . . . . . . . . . . . . . . . . . . . .  18
       4.4.1.  KEK Attributes  . . . . . . . . . . . . . . . . . . .  19
       4.4.2.  KEK_MANAGEMENT_ALGORITHM  . . . . . . . . . . . . . .  20
       4.4.3.  KEK_ENCR_ALGORITHM  . . . . . . . . . . . . . . . . .  20
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