RFC 4051 · PROPOSED STANDARD · 2005

Additional XML Security Uniform Resource Identifiers

Overview

RFC 4051, “Additional XML Security Uniform Resource Identifiers”, is a Proposed Standard document published in April 2005 by D. Eastlake 3rd. It has been obsoleted by RFC 6931 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.

Abstract

A number of Uniform Resource Identifiers (URIs) intended for use with XML Digital Signatures, Encryption, and Canonicalization are defined. These URIs identify algorithms and types of keying information. [STANDARDS-TRACK]

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 4051 is hosted at rfc-editor.org. Available in TXT,HTML.

Relationships to other RFCs
Obsoleted by
RFC 6931
Other RFCs from 2005

Who Is Online

In total there are 73 users online: 0 registered, 67 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