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RFC 8742

Internet Engineering Task Force (IETF) C. Bormann Request for Comments: 8742 Universität Bremen TZI Category: Standards Track February 2020 ISSN: 2070-1721

     Concise Binary Object Representation (CBOR) Sequences

Abstract

This document describes the Concise Binary Object Representation (CBOR) Sequence format and associated media type "application/cbor- seq". A CBOR Sequence consists of any number of encoded CBOR data items, simply concatenated in sequence.

Structured syntax suffixes for media types allow other media types to build on them and make it explicit that they are built on an existing media type as their foundation. This specification defines and registers "+cbor-seq" as a structured syntax suffix for CBOR Sequences.

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 https://www.rfc-editor.org/info/rfc8742.

Copyright Notice

Copyright (c) 2020 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 1.1. Conventions Used in This Document
  2. CBOR Sequence Format
  3. The "+cbor-seq" Structured Syntax Suffix
  4. Practical Considerations 4.1. Specifying CBOR Sequences in Concise Data Definition Language (CDDL) 4.2. Diagnostic Notation 4.3. Optimizing CBOR Sequences for Skipping Elements
  5. Security Considerations
  6. IANA Considerations 6.1. Media Type 6.2. CoAP Content-Format Registration 6.3. Structured Syntax Suffix
  7. References 7.1. Normative References 7.2. Informative References Acknowledgements Author's Address
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