Securing the RTP Framework: Why RTP Does Not Mandate a Single Media Security Solution (RFC7202)
Original Publication Date: 2014-Apr-01
Included in the Prior Art Database: 2014-Apr-16
Internet Society Requests For Comment (RFCs)
C. Perkins: AUTHOR [+2]
The Real-time Transport Protocol (RTP) [RFC3550] is widely used for voice over IP, Internet television, video conferencing, and other real-time and streaming media applications. Despite this use, the basic RTP specification provides only limited options for media security and defines no standard key exchange mechanism. Rather, a number of extensions are defined that can provide confidentiality and authentication of RTP media streams and RTP Control Protocol (RTCP) messages. Other mechanisms define key exchange protocols. This memo outlines why it is appropriate that multiple extension mechanisms are defined rather than mandating a single security and keying mechanism for all users of RTP.
Internet Engineering Task Force (IETF) C. Perkins Request for Comments: 7202 University of Glasgow Category: Informational M. Westerlund ISSN: 2070-1721 Ericsson April 2014
Securing the RTP Framework: Why RTP Does Not Mandate a Single Media Security Solution
This memo discusses the problem of securing real-time multimedia sessions. It also explains why the Real-time Transport Protocol (RTP) and the associated RTP Control Protocol (RTCP) do not mandate a single media security mechanism. This is relevant for designers and reviewers of future RTP extensions to ensure that appropriate security mechanisms are mandated and that any such mechanisms are specified in a manner that conforms with the RTP architecture.
Status of This Memo
This document is not an Internet Standards Track specification; it is published for informational purposes.
This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Not all documents approved by the IESG are a candidate for any level of Internet Standard; see Section 2 of RFC 5741.
Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc7202.
Perkins & Westerlund Informational [Page 1]
RFC 7202 Securing the RTP Framework April 2014
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 2. RTP Applications and Dep...