HIP Diet EXchange (DEX)
draft-ietf-hip-dex-11
| Document | Type | Active Internet-Draft (hip WG) | |
|---|---|---|---|
| Last updated | 2019-11-18 (latest revision 2019-10-31) | ||
| Replaces | draft-moskowitz-hip-dex | ||
| Stream | IETF | ||
| Intended RFC status | Proposed Standard | ||
| Formats | plain text xml pdf 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 | IESG Evaluation::Revised I-D Needed | |
| Consensus Boilerplate | Yes | ||
| Telechat date |
Needs 4 more YES or NO OBJECTION positions to pass. |
||
| Responsible AD | Éric Vyncke | ||
| Send notices to | Gonzalo Camarillo <gonzalo.camarillo@ericsson.com> | ||
| IANA | IANA review state | IANA - Not OK | |
HIP WG R. Moskowitz, Ed.
Internet-Draft HTT Consulting
Intended status: Standards Track R. Hummen
Expires: May 2, 2020 Hirschmann Automation and Control
M. Komu
Ericsson
October 30, 2019
HIP Diet EXchange (DEX)
draft-ietf-hip-dex-11
Abstract
This document specifies the Host Identity Protocol Diet EXchange (HIP
DEX), a variant of the Host Identity Protocol Version 2 (HIPv2). The
HIP DEX protocol design aims at reducing the overhead of the employed
cryptographic primitives by omitting public-key signatures and 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. 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 May 2, 2020.
Moskowitz, et al. Expires May 2, 2020 [Page 1]
Internet-Draft HIP Diet EXchange (DEX) October 2019
Copyright Notice
Copyright (c) 2019 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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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. The HIP Diet EXchange (DEX) . . . . . . . . . . . . . . . 5
1.2. Memo Structure . . . . . . . . . . . . . . . . . . . . . 6
2. Terms, Notation and Definitions . . . . . . . . . . . . . . . 6
2.1. Requirements Terminology . . . . . . . . . . . . . . . . 6
2.2. Notation . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3. Definitions . . . . . . . . . . . . . . . . . . . . . . . 7
3. Host Identity (HI) and its Structure . . . . . . . . . . . . 8
3.1. Host Identity Tag (HIT) . . . . . . . . . . . . . . . . . 9
3.2. Generating a HIT from an HI . . . . . . . . . . . . . . . 9
4. Protocol Overview . . . . . . . . . . . . . . . . . . . . . . 9
4.1. Creating a HIP Association . . . . . . . . . . . . . . . 10
4.1.1. HIP Puzzle Mechanism . . . . . . . . . . . . . . . . 11
4.1.2. HIP State Machine . . . . . . . . . . . . . . . . . . 12
4.1.3. HIP DEX Security Associations . . . . . . . . . . . . 16
4.1.4. User Data Considerations . . . . . . . . . . . . . . 17
5. Packet Formats . . . . . . . . . . . . . . . . . . . . . . . 17
5.1. Payload Format . . . . . . . . . . . . . . . . . . . . . 17
5.2. HIP Parameters . . . . . . . . . . . . . . . . . . . . . 17
5.2.1. DH_GROUP_LIST . . . . . . . . . . . . . . . . . . . . 18
5.2.2. HIP_CIPHER . . . . . . . . . . . . . . . . . . . . . 18
5.2.3. HOST_ID . . . . . . . . . . . . . . . . . . . . . . . 19
5.2.4. HIT_SUITE_LIST . . . . . . . . . . . . . . . . . . . 19
5.2.5. ENCRYPTED_KEY . . . . . . . . . . . . . . . . . . . . 20
5.3. HIP Packets . . . . . . . . . . . . . . . . . . . . . . . 20
5.3.1. I1 - the HIP Initiator Packet . . . . . . . . . . . . 21
5.3.2. R1 - the HIP Responder Packet . . . . . . . . . . . . 22
5.3.3. I2 - the Second HIP Initiator Packet . . . . . . . . 24
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