RFC 3686 · PROPOSED STANDARD · 2004
SUN · 14 JUN 2026
Using Advanced Encryption Standard Counter Mode With IPsec Encapsulating Security Payload
Overview
RFC 3686, “Using Advanced Encryption Standard Counter Mode With IPsec Encapsulating Security Payload”, is a Proposed Standard document published in January 2004 by R. Housley. The canonical text is published by the RFC Editor.
Abstract
This document describes the use of Advanced Encryption Standard (AES) Counter Mode, with an explicit initialization vector, as an IPsec Encapsulating Security Payload (ESP) confidentiality mechanism.
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 3686 is hosted at rfc-editor.org. Available in TXT,HTML.
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