RFC 9216 · INFORMATIONAL · 2022
SUN · 14 JUN 2026
S/MIME Example Keys and Certificates
Overview
RFC 9216, “S/MIME Example Keys and Certificates”, is an Informational document published in April 2022 by D. K. Gillmor. The canonical text is published by the RFC Editor.
Abstract
The S/MIME development community benefits from sharing samples of signed or encrypted data. This document facilitates such collaboration by defining a small set of X.509v3 certificates and keys for use when generating such samples.
What “Informational” means
Published for the general information of the community. It does not define an IETF standard and carries no standards-track status.
Read this RFC
The canonical text of RFC 9216 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.
Other RFCs from 2022
- RFC 9217 Current Open Questions in Path-Aware Networking
- RFC 9215 Using GOST R 34.10-2012 and GOST R 34.11-2012 Algorithms with the Internet X.509 Public Key Infrastructure
- RFC 9218 Extensible Prioritization Scheme for HTTP
- RFC 9214 OSPFv3 Code Point for MPLS LSP Ping
- RFC 9219 S/MIME Signature Verification Extension to the JSON Meta Application Protocol
- RFC 9213 Targeted HTTP Cache Control
- RFC 9220 Bootstrapping WebSockets with HTTP/3
- RFC 9212 Commercial National Security Algorithm Suite Cryptography for Secure Shell