HIP Diet EXchange (DEX)
draft-ietf-hip-dex-24

Document Type Active Internet-Draft (hip WG)
Authors Robert Moskowitz  , Rene Hummen  , Miika Komu 
Last updated 2021-01-20 (latest revision 2021-01-19)
Replaces draft-moskowitz-hip-dex
Stream IETF
Intended RFC status Proposed Standard
Formats plain text html xml pdf htmlized (tools) htmlized bibtex
Reviews
Stream WG state Submitted to IESG for Publication
Document shepherd Gonzalo Camarillo
Shepherd write-up Show (last changed 2019-10-31)
IESG IESG state In Last Call (ends 2021-02-03)
Consensus Boilerplate Yes
Telechat date
Has 2 DISCUSSes. Needs 7 more YES or NO OBJECTION positions to pass.
Responsible AD Éric Vyncke
IESG note This document was deferred by Terry Manderson in May 2018. The authors have taken into account all COMMENTs from the 2018 ballot, changing several parts of the document based on those COMMENTs.

The document went successfully through a new IETF last call (that I (Eric V) requested in early 2020) and the authors have addressed all points raised during this Last Call (including the SECDIR review by Don Eastlake). Security AD have currently some DISCUSSs based on the May 2020 telechat (that was cancelled pending the fix to those DISCUSS). Authors have addressed in revision -21 all DISCUSS (and some COMMENTs) points raised during the 2019 IESG review.

So I am balloting the approval again in front of the 2020 IESG members.

-éric
Send notices to Gonzalo Camarillo <gonzalo.camarillo@ericsson.com>
IANA IANA review state Version Changed - Review Needed
HIP WG                                                 R. Moskowitz, Ed.
Internet-Draft                                            HTT Consulting
Intended status: Standards Track                               R. Hummen
Expires: 23 July 2021                  Hirschmann Automation and Control
                                                                 M. Komu
                                                                Ericsson
                                                         19 January 2021

                        HIP Diet EXchange (DEX)
                         draft-ietf-hip-dex-24

Abstract

   This document specifies the Host Identity Protocol Diet EXchange (HIP
   DEX), a variant of the Host Identity Protocol Version 2 (HIPv2) and
   specifically developed for use on low end processors.  The HIP DEX
   protocol design aims at reducing the overhead of the employed
   cryptographic primitives by omitting public-key signatures and
   cryptographic hash functions.

   The HIP DEX protocol is primarily designed for computation or memory-
   constrained sensor/actuator devices.  Like HIPv2, it is expected to
   be used together with a suitable security protocol such as the
   Encapsulated Security Payload (ESP) for the protection of upper layer
   protocol data.  Unlike HIPv2, HIP DEX does not support Forward
   Secrecy (FS), and MUST only be used on devices where FS is
   prohibitively expensive.  In addition, HIP DEX can also be used as a
   keying mechanism for security primitives at the MAC layer, e.g., for
   IEEE 802.15.4 networks.

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 https://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 23 July 2021.

Moskowitz, et al.         Expires 23 July 2021                  [Page 1]
Internet-Draft           HIP Diet EXchange (DEX)            January 2021

Copyright Notice

   Copyright (c) 2021 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 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  . . . . . . . . . . . . . . . . . . . . . . . .   4
     1.1.  The HIP Diet EXchange (DEX) . . . . . . . . . . . . . . .   6
     1.2.  Applicability . . . . . . . . . . . . . . . . . . . . . .   7
       1.2.1.  Partial Computational Cost of FS via SIGMA  . . . . .   8
     1.3.  Memo Structure  . . . . . . . . . . . . . . . . . . . . .   9
   2.  Terms, Notation and Definitions . . . . . . . . . . . . . . .   9
     2.1.  Requirements Terminology  . . . . . . . . . . . . . . . .   9
     2.2.  Notation  . . . . . . . . . . . . . . . . . . . . . . . .   9
     2.3.  Definitions . . . . . . . . . . . . . . . . . . . . . . .  10
   3.  Host Identity (HI) and its Structure  . . . . . . . . . . . .  11
     3.1.  Host Identity Tag (HIT) . . . . . . . . . . . . . . . . .  12
     3.2.  Generating a HIT from an HI . . . . . . . . . . . . . . .  13
       3.2.1.  Why Introduce FOLD  . . . . . . . . . . . . . . . . .  13
   4.  Protocol Overview . . . . . . . . . . . . . . . . . . . . . .  14
     4.1.  Creating a HIP Association  . . . . . . . . . . . . . . .  14
       4.1.1.  HIP Puzzle Mechanism  . . . . . . . . . . . . . . . .  16
       4.1.2.  HIP State Machine . . . . . . . . . . . . . . . . . .  17
       4.1.3.  HIP DEX Security Associations . . . . . . . . . . . .  21
       4.1.4.  User Data Considerations  . . . . . . . . . . . . . .  22
   5.  Packet Formats  . . . . . . . . . . . . . . . . . . . . . . .  22
     5.1.  Payload Format  . . . . . . . . . . . . . . . . . . . . .  22
     5.2.  HIP Parameters  . . . . . . . . . . . . . . . . . . . . .  22
       5.2.1.  DH_GROUP_LIST . . . . . . . . . . . . . . . . . . . .  23
       5.2.2.  HIP_CIPHER  . . . . . . . . . . . . . . . . . . . . .  23
       5.2.3.  HOST_ID . . . . . . . . . . . . . . . . . . . . . . .  24
       5.2.4.  HIT_SUITE_LIST  . . . . . . . . . . . . . . . . . . .  25
Show full document text