Internationalization Updates to RFC 5280
RFC 9549, “Internationalization Updates to RFC 5280”, is a Proposed Standard document published in March 2024 by R. Housley. It updates RFC 5280. It obsoletes RFC 8399. The canonical text is published by the RFC Editor.
Abstract
The updates to RFC 5280 described in this document provide alignment with the 2008 specification for Internationalized Domain Names (IDNs) and includes support for internationalized email addresses in X.509 certificates. The updates ensure that name constraints for email addresses that contain only ASCII characters and internationalized email addresses are handled in the same manner. This document obsoletes RFC 8399.
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.
The canonical text of RFC 9549 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.
- RFC 9548 Generating Transport Key Containers Using the GOST Algorithms
- RFC 9550 Deterministic Networking : Packet Ordering Function
- RFC 9547 Report from the IAB Workshop on Environmental Impact of Internet Applications and Systems, 2022
- RFC 9551 Framework of Operations, Administration, and Maintenance for Deterministic Networking
- RFC 9546 Operations, Administration, and Maintenance for Deterministic Networking with the MPLS Data Plane
- RFC 9545 Path Segment Identifier in MPLS-Based Segment Routing Networks
- RFC 9553 JSContact: A JSON Representation of Contact Data
- RFC 9544 Precision Availability Metrics for Services Governed by Service Level Objectives