GDOI Protocol Support for IEC 62351 Security Services
draft-weis-gdoi-iec62351-9-08

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Last updated 2016-09-26
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Network Working Group                                            B. Weis
Internet-Draft                                                M. Seewald
Intended status: Standards Track                           Cisco Systems
Expires: March 27, 2017                                          H. Falk
                                                                   SISCO
                                                      September 23, 2016

         GDOI Protocol Support for IEC 62351 Security Services
                     draft-weis-gdoi-iec62351-9-08

Abstract

   The IEC 61850 power utility automation family of standards describe
   methods using Ethernet and IP for distributing control and data
   frames within and between substations.  The IEC 61850-90-5 and IEC
   62351-9 standards specify the use of the Group Domain of
   Interpretation (GDOI) protocol (RFC 6407) to distribute security
   transforms for some IEC 61850 security protocols.  This memo defines
   GDOI payloads to support those security protocols.

Status of This Memo

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   This Internet-Draft will expire on March 27, 2017.

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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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   (http://trustee.ietf.org/license-info) in effect on the date of
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   carefully, as they describe your rights and restrictions with respect

Weis, et al.             Expires March 27, 2017                 [Page 1]
Internet-Draft                GDOI-IEC62351               September 2016

   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.  Requirements notation . . . . . . . . . . . . . . . . . .   3
     1.2.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   3
     1.3.  Acronyms and Abbreviations  . . . . . . . . . . . . . . .   3
   2.  IEC 61850 Protocol Information  . . . . . . . . . . . . . . .   4
     2.1.  ID Payload  . . . . . . . . . . . . . . . . . . . . . . .   4
     2.2.  SA TEK Payload  . . . . . . . . . . . . . . . . . . . . .   5
     2.3.  KD Payload  . . . . . . . . . . . . . . . . . . . . . . .   9
   3.  Security Considerations . . . . . . . . . . . . . . . . . . .  11
   4.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  12
   5.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  13
   6.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  13
     6.1.  Normative References  . . . . . . . . . . . . . . . . . .  14
     6.2.  Informative References  . . . . . . . . . . . . . . . . .  14
   Appendix A.  Example ID, SA TEK, and KD payloads for IEC 61850  .  16
   Appendix B.  Implementation Considerations  . . . . . . . . . . .  20
     B.1.  DER Length Fields . . . . . . . . . . . . . . . . . . . .  20
     B.2.  Groups with Multiple Senders  . . . . . . . . . . . . . .  20
   Appendix C.  Data Attribute Format  . . . . . . . . . . . . . . .  21
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  21

1.  Introduction

   Power substations use Generic Object Oriented Substation Events
   (GOOSE) protocol [IEC-61850-8-1] to distribute control information to
   groups of devices using a multicast strategy.  Sources within the
   power substations also distribute IEC 61850-9-2 sampled values data
   streams [IEC-61850-9-2].  The IEC 62351-9 standard [IEC-62351-9]
   describes key management methods for the security methods protecting
   these IEC 61850 messages, including methods of device authentication
   and authorization, and methods of policy and keying material
   agreement for IEC 61850 message encryption and data integrity
   protection.  These key management methods include the use of GDOI
   [RFC6407] to distribute the security policy and session keying
   material used to protect IEC 61850 messages when the messages are
   sent to a group of devices.

   The protection of the messages is defined within IEC 62351-6
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