RFC 9734 · PROPOSED STANDARD · 2025
SUN · 14 JUN 2026
X.509 Certificate Extended Key Usage for Instant Messaging URIs
Overview
RFC 9734, “X.509 Certificate Extended Key Usage for Instant Messaging URIs”, is a Proposed Standard document published in February 2025 by R. Mahy. The canonical text is published by the RFC Editor.
Abstract
RFC 5280 specifies several extended key purpose identifiers (KeyPurposeIds) for X.509 certificates. This document defines an Instant Messaging (IM) identity KeyPurposeId for inclusion in the Extended Key Usage (EKU) extension of X.509 v3 public key certificates
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 9734 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.
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