X.509 Certificate Extension for Secure/Multipurpose Internet Mail Extensions Capabilities
RFC 4262, “X.509 Certificate Extension for Secure/Multipurpose Internet Mail Extensions Capabilities”, is a Proposed Standard document published in December 2005 by S. Santesson. The canonical text is published by the RFC Editor.
Abstract
This document defines a certificate extension for inclusion of Secure/Multipurpose Internet Mail Extensions (S/MIME) Capabilities in X.509 public key certificates, as defined by RFC 3280. This certificate extension provides an optional method to indicate the cryptographic capabilities of an entity as a complement to the S/MIME Capabilities signed attribute in S/MIME messages according to RFC 3851. [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.
The canonical text of RFC 4262 is hosted at rfc-editor.org. Available in TXT,HTML.
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