RFC 9090 · PROPOSED STANDARD · 2021

Concise Binary Object Representation Tags for Object Identifiers

Overview

RFC 9090, “Concise Binary Object Representation Tags for Object Identifiers”, is a Proposed Standard document published in July 2021 by C. Bormann. The canonical text is published by the RFC Editor.

Abstract

The Concise Binary Object Representation (CBOR), defined in RFC 8949, 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.

This document defines CBOR tags for object identifiers (OIDs) and is the reference document for the IANA registration of the CBOR tags so defined.

Abstract as published in the RFC, via rfc-editor.org.

What “Proposed Standard” means

An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.

Read this RFC

The canonical text of RFC 9090 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.

Other RFCs from 2021

Who Is Online

In total there are 54 users online: 0 registered, 48 guests and 6 bots.

Most users ever online was 1,226 on 13 Jun 2026, 3:56 am.

Bots: AhrefsBot Applebot Facebook Majestic Other Bot SemrushBot

Users active in the past 15 minutes. Total registered members: 354