RFC 4196 · PROPOSED STANDARD · 2005
SUN · 14 JUN 2026
The SEED Cipher Algorithm and Its Use with IPsec
Overview
RFC 4196, “The SEED Cipher Algorithm and Its Use with IPsec”, is a Proposed Standard document published in October 2005 by H.J. Lee, J.H. Yoon, S.L. Lee, J.I. Lee. The canonical text is published by the RFC Editor.
Abstract
This document describes the use of the SEED block cipher algorithm in the Cipher Block Chaining Mode, with an explicit IV, as a confidentiality mechanism within the context of the IPsec Encapsulating Security Payload (ESP). [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 4196 is hosted at rfc-editor.org. Available in TXT,HTML.
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