RFC 6187 · PROPOSED STANDARD · 2011
SUN · 14 JUN 2026
X.509v3 Certificates for Secure Shell Authentication
Overview
RFC 6187, “X.509v3 Certificates for Secure Shell Authentication”, is a Proposed Standard document published in March 2011 by K. Igoe, D. Stebila. The canonical text is published by the RFC Editor.
Abstract
X.509 public key certificates use a signature by a trusted certification authority to bind a given public key to a given digital identity. This document specifies how to use X.509 version 3 public key certificates in public key algorithms in the Secure Shell protocol. [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 6187 is hosted at rfc-editor.org. Available in TXT,HTML.
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