Concise Binary Object Representation (CBOR) Tags for ASN.1 Object Identifiers
draft-bormann-cbor-tags-oid-01

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Document Type Active Internet-Draft (individual)
Authors Carsten Bormann  , Sean Leonard 
Last updated 2015-07-06
Replaced by draft-ietf-cbor-tags-oid
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Network Working Group                                         C. Bormann
Internet-Draft                                   Universitaet Bremen TZI
Intended status: Standards Track                              S. Leonard
Expires: January 7, 2016                                   Penango, Inc.
                                                           July 06, 2015

          Concise Binary Object Representation (CBOR) Tags for
                        ASN.1 Object Identifiers
                     draft-bormann-cbor-tags-oid-01

Abstract

   The Concise Binary Object Representation (CBOR, RFC 7049) is a data
   format whose design goals include the possibility of extremely small
   code size, fairly small message size, and extensibility without the
   need for version negotiation.

   The present document makes use of this extensibility to define CBOR
   tags <<O>> and <<R>> [values TBD] for ASN.1 object identifiers.  It
   is intended as the reference document for the IANA registration of
   the CBOR tags so defined.

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
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   This Internet-Draft will expire on January 7, 2016.

Copyright Notice

   Copyright (c) 2015 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

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   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.  ASN.1 Object Identifiers  . . . . . . . . . . . . . . . . . .   3
   3.  Examples  . . . . . . . . . . . . . . . . . . . . . . . . . .   4
   4.  Discussion  . . . . . . . . . . . . . . . . . . . . . . . . .   6
   5.  Diagnostic Notation . . . . . . . . . . . . . . . . . . . . .   7
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   7
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .   8
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   9
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  10

1.  Introduction

   The Concise Binary Object Representation (CBOR, [RFC7049]) provides
   for the interchange of structured data without a requirement for a
   pre-agreed schema.  RFC 7049 defines a basic set of data types, as
   well as a tagging mechanism that enables extending the set of data
   types supported via an IANA registry.

   Many IETF protocols carry ASN.1 object identifiers, originally
   defined in 1988 [CCITT.X208.1988] and most recently in 2008 [X.680].
   The ASN.1 Basic Encoding Rules (BER, [X.690]) specifies the binary
   encodings of both ASN.1 object identifiers and relative object
   identifiers.  The contents of these encodings can be carried in a
   CBOR byte string.

   This document defines two CBOR tags that cover the two kinds of ASN.1
   object identifiers encoded in this way.  It is intended as the
   reference document for the IANA registration of the tags so defined.

1.1.  Terminology

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

   The terminology of RFC 7049 applies; in particular the term "byte" is
   used in its now customary sense as a synonym for "octet".

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2.  ASN.1 Object Identifiers

   The International Object Identifier tree [X.660] is a hierarchically
   managed space of identifiers, each of which is uniquely represented
   as a sequence of unsigned integers ("sub-identifiers") [X.680].
   While these sequences can easily be represented in CBOR arrays of
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