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Connection-Oriented Media Transport over the Transport Layer Security (TLS) Protocol in the Session Description Protocol (SDP) (RFC8122) Disclosure Number: IPCOM000249687D
Original Publication Date: 2017-Mar-01
Included in the Prior Art Database: 2017-Mar-18
Document File: 36 page(s) / 43K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

J. Lennox: AUTHOR [+1]


The Session Description Protocol (SDP) [8] provides a general-purpose format for describing multimedia sessions in announcements or invitations. For many applications, it is desirable to establish, as part of a multimedia session, a media stream that uses a connection- oriented transport. RFC 4145, "TCP-Based Media Transport in the Session Description Protocol (SDP)" [7], specifies a general mechanism for describing and establishing such connection-oriented streams; however, the only transport protocol it directly supports is TCP. In many cases, session participants wish to provide confidentiality, data integrity, and authentication for their media sessions. Therefore, this document extends the TCP-Based Media specification to allow session descriptions to describe media sessions that use the Transport Layer Security (TLS) protocol [10].

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Internet Engineering Task Force (IETF)                         J. Lennox Request for Comments: 8122                                         Vidyo Obsoletes: 4572                                              C. Holmberg Category: Standards Track                                       Ericsson ISSN: 2070-1721                                               March 2017

                 Connection-Oriented Media Transport over               the Transport Layer Security (TLS) Protocol                in the Session Description Protocol (SDP)


   This document specifies how to establish secure connection-oriented    media transport sessions over the Transport Layer Security (TLS)    protocol using the Session Description Protocol (SDP).  It defines    the SDP protocol identifier, 'TCP/TLS'.  It also defines the syntax    and semantics for an SDP 'fingerprint' attribute that identifies the    certificate that will be presented for the TLS session.  This    mechanism allows media transport over TLS connections to be    established securely, so long as the integrity of session    descriptions is assured.

   This document obsoletes RFC 4572 by clarifying the usage of multiple    fingerprints.

Status of This Memo

   This is an Internet Standards Track document.

   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).  Further information on    Internet Standards is available in Section 2 of RFC 7841.

   Information about the current status of this document, any errata,    and how to provide feedback on it may be obtained at

 Lennox & Holmberg            Standards Track                    [Page 1]
 RFC 8122                 Comedia over TLS in SDP              March 2017

 Copyright Notice

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