RFC 4189 · INFORMATIONAL · 2005

Requirements for End-to-Middle Security for the Session Initiation Protocol

Overview

RFC 4189, “Requirements for End-to-Middle Security for the Session Initiation Protocol”, is an Informational document published in October 2005 by K. Ono, S. Tachimoto. The canonical text is published by the RFC Editor.

Abstract

A Session Initiation Protocol (SIP) User Agent (UA) does not always trust all intermediaries in its request path to inspect its message bodies and/or headers contained in its message. The UA might want to protect the message bodies and/or headers from intermediaries, except those that provide services based on its content. This situation requires a mechanism called "end-to-middle security" to secure the information passed between the UA and intermediaries, which does not interfere with end-to-end security. This document defines a set of requirements for a mechanism to achieve end-to-middle security. This memo provides information for the Internet community.

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

What “Informational” means

Published for the general information of the community. It does not define an IETF standard and carries no standards-track status.

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