RFC 3854 · PROPOSED STANDARD · 2004
SUN · 14 JUN 2026
Securing X.400 Content with Secure/Multipurpose Internet Mail Extensions
Overview
RFC 3854, “Securing X.400 Content with Secure/Multipurpose Internet Mail Extensions”, is a Proposed Standard document published in July 2004 by P. Hoffman, C. Bonatti, A. Eggen. The canonical text is published by the RFC Editor.
Abstract
This document describes a protocol for adding cryptographic signature and encryption services to X.400 content with Secure/Multipurpose Internet Mail Extensions (S/MIME). [STANDARDS-TRACK]
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 3854 is hosted at rfc-editor.org. Available in TXT,HTML.
Other RFCs from 2004
- RFC 3853 S/MIME Advanced Encryption Standard Requirement for the Session Initiation Protocol
- RFC 3855 Transporting Secure/Multipurpose Internet Mail Extensions Objects in X.400
- RFC 3852 Cryptographic Message Syntax
- RFC 3856 A Presence Event Package for the Session Initiation Protocol
- RFC 3851 Secure/Multipurpose Internet Mail Extensions Version 3.1 Message Specification
- RFC 3857 A Watcher Information Event Template-Package for the Session Initiation Protocol
- RFC 3850 Secure/Multipurpose Internet Mail Extensions Version 3.1 Certificate Handling
- RFC 3858 An Extensible Markup Language Based Format for Watcher Information