RFC 4345 · HISTORIC · 2006 MON · 14 SEP 2026

Improved Arcfour Modes for the Secure Shell Transport Layer Protocol

By B. Harris · Published January 2006 · DOI 10.17487/RFC4345

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]

Abstract as published in the RFC, via rfc-editor.org.

What “Historic” means

A specification that has been superseded or is otherwise no longer recommended for use.

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