RFC 2405 · PROPOSED STANDARD · 1998
WED · 29 JUL 2026
The ESP DES-CBC Cipher Algorithm With Explicit IV
Overview
RFC 2405, “The ESP DES-CBC Cipher Algorithm With Explicit IV”, is a Proposed Standard document published in November 1998 by C. Madson, N. Doraswamy. The canonical text is published by the RFC Editor.
Abstract
This document describes the use of the DES Cipher algorithm in 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 2405 is hosted at rfc-editor.org. Available in TXT,HTML.
Other RFCs from 1998
- RFC 2404 The Use of HMAC-SHA-1-96 within ESP and AH
- RFC 2406 IP Encapsulating Security Payload
- RFC 2403 The Use of HMAC-MD5-96 within ESP and AH
- RFC 2407 The Internet IP Security Domain of Interpretation for ISAKMP
- RFC 2402 IP Authentication Header
- RFC 2408 Internet Security Association and Key Management Protocol
- RFC 2401 Security Architecture for the Internet Protocol
- RFC 2409 The Internet Key Exchange