Secure DHCPv6 with Public Key
draft-ietf-dhc-sedhcpv6-03

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DHC Working Group                                          S. Jiang, Ed.
Internet-Draft                              Huawei Technologies Co., Ltd
Intended status: Standards Track                                 S. Shen
Expires: December 21, 2014                                         CNNIC
                                                                D. Zhang
                                            Huawei Technologies Co., Ltd
                                                               T. Jinmei
                                                            WIDE Project
                                                           June 19, 2014

                     Secure DHCPv6 with Public Key
                       draft-ietf-dhc-sedhcpv6-03

Abstract

   The Dynamic Host Configuration Protocol for IPv6 (DHCPv6) enables
   DHCPv6 servers to pass configuration parameters.  It offers
   configuration flexibility.  If not secured, DHCPv6 is vulnerable to
   various attacks, particularly spoofing attacks.  This document
   analyzes the security issues of DHCPv6 and specifies a Secure DHCPv6
   mechanism for communication between DHCPv6 clients and DHCPv6
   servers.  This mechanism is based on public/private key pairs.  The
   authority of the sender may depend on either pre-configuration
   mechanism or Public Key Infrastructure.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on December 21, 2014.

Copyright Notice

   Copyright (c) 2014 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Jiang, et al.           Expires December 21, 2014               [Page 1]
Internet-Draft                  SeDHCPv6                       June 2014

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
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   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
   2.  Requirements Language and Terminology . . . . . . . . . . . .   3
   3.  Security Overview of DHCPv6 . . . . . . . . . . . . . . . . .   3
   4.  Overview of Secure DHCPv6 Mechanism with Public Key . . . . .   4
     4.1.  New Components  . . . . . . . . . . . . . . . . . . . . .   6
     4.2.  Support for algorithm agility . . . . . . . . . . . . . .   6
     4.3.  Applicability . . . . . . . . . . . . . . . . . . . . . .   7
   5.  Extensions for Secure DHCPv6  . . . . . . . . . . . . . . . .   7
     5.1.  Public Key Option . . . . . . . . . . . . . . . . . . . .   7
     5.2.  Certificate Option  . . . . . . . . . . . . . . . . . . .   8
     5.3.  Signature Option  . . . . . . . . . . . . . . . . . . . .   9
     5.4.  Status Codes  . . . . . . . . . . . . . . . . . . . . . .  10
   6.  Processing Rules and Behaviors  . . . . . . . . . . . . . . .  11
     6.1.  Processing Rules of Sender  . . . . . . . . . . . . . . .  11
     6.2.  Processing Rules of Recipient . . . . . . . . . . . . . .  12
     6.3.  Processing Rules of Relay Agent . . . . . . . . . . . . .  14
     6.4.  Timestamp Check . . . . . . . . . . . . . . . . . . . . .  14
   7.  Deployment Consideration  . . . . . . . . . . . . . . . . . .  16
     7.1.  Authentication on a client  . . . . . . . . . . . . . . .  16
     7.2.  Authentication on a server  . . . . . . . . . . . . . . .  16
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .  17
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  18
   10. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  20
   11. Change log [RFC Editor: Please remove]  . . . . . . . . . . .  20
   12. References  . . . . . . . . . . . . . . . . . . . . . . . . .  21
     12.1.  Normative References . . . . . . . . . . . . . . . . . .  21
     12.2.  Informative References . . . . . . . . . . . . . . . . .  22
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  22

1.  Introduction