Host Identity Protocol Certificates
RFC 8002

Document Type RFC - Proposed Standard (October 2016; No errata)
Obsoletes RFC 6253
Updates RFC 7401
Last updated 2016-10-14
Stream IETF
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Reviews
Stream WG state Submitted to IESG for Publication
Document shepherd Gonzalo Camarillo
Shepherd write-up Show (last changed 2015-11-08)
IESG IESG state RFC 8002 (Proposed Standard)
Consensus Boilerplate Yes
Telechat date
Responsible AD Terry Manderson
Send notices to "Gonzalo Camarillo" <gonzalo.camarillo@ericsson.com>
IANA IANA review state IANA OK - Actions Needed
IANA action state RFC-Ed-Ack
Internet Engineering Task Force (IETF)                           T. Heer
Request for Comments: 8002               Albstadt-Sigmaringen University
Obsoletes: 6253                                              S. Varjonen
Updates: 7401                                     University of Helsinki
Category: Standards Track                                   October 2016
ISSN: 2070-1721

                  Host Identity Protocol Certificates

Abstract

   The Certificate (CERT) parameter is a container for digital
   certificates.  It is used for carrying these certificates in Host
   Identity Protocol (HIP) control packets.  This document specifies the
   certificate parameter and the error signaling in case of a failed
   verification.  Additionally, this document specifies the
   representations of Host Identity Tags (HITs) in X.509 version 3 (v3).

   The concrete use cases of certificates, including how certificates
   are obtained and requested and which actions are taken upon
   successful or failed verification, are specific to the scenario in
   which the certificates are used.  Hence, the definition of these
   scenario-specific aspects is left to the documents that use the CERT
   parameter.

   This document updates RFC 7401 and obsoletes RFC 6253.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force
   (IETF).  It represents the consensus of the IETF community.  It has
   received public review and has been approved for publication by the
   Internet Engineering Steering Group (IESG).  Further information on
   Internet Standards is available in Section 2 of RFC 7841.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   http://www.rfc-editor.org/info/rfc8002.

Heer & Varjonen              Standards Track                    [Page 1]
RFC 8002                        HIP CERT                    October 2016

Copyright Notice

   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
   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
   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  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . .   3
   2.  CERT Parameter  . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  X.509 v3 Certificate Object and Host Identities . . . . . . .   5
   4.  Revocation of Certificates  . . . . . . . . . . . . . . . . .   6
   5.  Error Signaling . . . . . . . . . . . . . . . . . . . . . . .   7
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   7
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .   8
   8.  Differences from RFC 6253 . . . . . . . . . . . . . . . . . .   8
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   9
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .   9
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  10
   Appendix A.  X.509 v3 Certificate Example . . . . . . . . . . . .  11
   Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . .  13
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  13

Heer & Varjonen              Standards Track                    [Page 2]
RFC 8002                        HIP CERT                    October 2016

1.  Introduction

   Digital certificates bind pieces of information to a public key by
   means of a digital signature and thus enable the holder of a private
   key to generate cryptographically verifiable statements.  The Host
   Identity Protocol (HIP) [RFC7401] defines a new cryptographic
   namespace based on asymmetric cryptography.  The identity of each
   host is derived from a public key, allowing hosts to digitally sign
   data and issue certificates with their private key.  This document
   specifies the CERT parameter, which is used to transmit digital
   certificates in HIP.  It fills the placeholder specified in
   Section 5.2 of [RFC7401] and thus updates [RFC7401].

1.1.  Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
   "OPTIONAL" in this document are to be interpreted as described in
   RFC 2119 [RFC2119].

2.  CERT Parameter

   The CERT parameter is a container for certain types of digital
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