GDOI GROUPKEY-PUSH Acknowledgement Message
draft-weis-gdoi-rekey-ack-07

Document Type Active Internet-Draft (individual)
Last updated 2017-09-08
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Network Working Group                                            B. Weis
Internet-Draft                                             Cisco Systems
Intended status: Standards Track                               U. Mangla
Expires: March 12, 2018                            Juniper Networks Inc.
                                                                 T. Karl
                                                        Deutsche Telekom
                                                           N. Maheshwari
                                                       September 8, 2017

               GDOI GROUPKEY-PUSH Acknowledgement Message
                      draft-weis-gdoi-rekey-ack-07

Abstract

   The Group Domain of Interpretation (GDOI) includes the ability for a
   Group Controller/Key Server (GCKS) to provide a set of current Group
   Member (GM) devices with additional security associations (e.g., to
   rekey expiring security associations).  This memo adds the ability of
   a GCKS to request the GM devices to return an acknowledgement of
   receipt of its rekey message, and specifies the acknowledgement
   method.

Status of This Memo

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   This Internet-Draft will expire on March 12, 2018.

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   Copyright (c) 2017 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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   (http://trustee.ietf.org/license-info) in effect on the date of

Weis, et al.             Expires March 12, 2018                 [Page 1]
Internet-Draft              GROUPKEY-PUSH ACK             September 2017

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Requirements notation . . . . . . . . . . . . . . . . . .   3
     1.2.  Acronyms and Abbreviations  . . . . . . . . . . . . . . .   4
   2.  Acknowledgement Message Request . . . . . . . . . . . . . . .   4
     2.1.  REKEY_ACK_KEK_SHA256 Type . . . . . . . . . . . . . . . .   5
     2.2.  REKEY_ACK_LKH_SHA256 Type . . . . . . . . . . . . . . . .   5
     2.3.  REKEY_ACK_KEK_SHA512 Type . . . . . . . . . . . . . . . .   5
     2.4.  REKEY_ACK_LKH_SHA512 Type . . . . . . . . . . . . . . . .   6
   3.  GROUPKEY-PUSH Acknowledgement Message . . . . . . . . . . . .   6
     3.1.  HDR . . . . . . . . . . . . . . . . . . . . . . . . . . .   7
     3.2.  HASH  . . . . . . . . . . . . . . . . . . . . . . . . . .   7
     3.3.  SEQ . . . . . . . . . . . . . . . . . . . . . . . . . . .   8
     3.4.  ID  . . . . . . . . . . . . . . . . . . . . . . . . . . .   8
   4.  Group Member Operations . . . . . . . . . . . . . . . . . . .   8
   5.  GCKS Operations . . . . . . . . . . . . . . . . . . . . . . .   9
   6.  Management Considerations . . . . . . . . . . . . . . . . . .   9
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  11
     7.1.  Protection of the GROUPKEY-PUSH ACK . . . . . . . . . . .  11
     7.2.  Transmitting a GROUPKEY-PUSH ACK  . . . . . . . . . . . .  12
     7.3.  Receiving a GROUPKEY-PUSH ACK . . . . . . . . . . . . . .  12
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  13
   9.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  13
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .  14
     10.1.  Normative References . . . . . . . . . . . . . . . . . .  14
     10.2.  Informative References . . . . . . . . . . . . . . . . .  14
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  15

1.  Introduction

   The Group Domain of Interpretation (GDOI) [RFC6407] is a group key
   management method by which a Group Controller/Key Server (GCKS)
   distributes security associations (i.e., cryptographic policy and
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