RFC 4345 · HISTORIC · 2006
WED · 29 JUL 2026
Improved Arcfour Modes for the Secure Shell Transport Layer Protocol
Overview
RFC 4345, “Improved Arcfour Modes for the Secure Shell Transport Layer Protocol”, is a Historic document published in January 2006 by B. Harris. The canonical text is published by the RFC Editor.
Abstract
This document specifies methods of using the Arcfour cipher in the Secure Shell (SSH) protocol that mitigate the weakness of the cipher's key-scheduling algorithm. [STANDARDS-TRACK]
What “Historic” means
A specification that has been superseded or is otherwise no longer recommended for use.
Read this RFC
The canonical text of RFC 4345 is hosted at rfc-editor.org. Available in TXT,HTML.
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