A Solution Framework for Private Media in Privacy Enhanced RTP Conferencing (PERC)

This document describes a solution framework for ensuring that media confidentiality and integrity are maintained end-to-end within the context of a switched conferencing environment where media distributors are not trusted with the end-to-end media encryption keys. The solution builds upon existing security mechanisms defined for the real-time transport protocol (RTP).

[1]  Paul Jones,et al.  DTLS Tunnel between a Media Distributor and Key Distributor to Facilitate Key Exchange , 2019 .

[2]  Scott O. Bradner,et al.  Key words for use in RFCs to Indicate Requirement Levels , 1997, RFC.

[3]  Dan Wing,et al.  Encrypted Key Transport for DTLS and Secure RTP , 2021, RFC.

[4]  Eric Rescorla,et al.  Datagram Transport Layer Security (DTLS) Extension to Establish Keys for the Secure Real-time Transport Protocol (SRTP) , 2010, RFC.

[5]  Henning Schulzrinne,et al.  RTP: A Transport Protocol for Real-Time Applications , 1996, RFC.

[6]  Cullen Jennings,et al.  Double Encryption Procedures for the Secure Real-Time Transport Protocol (SRTP) , 2020, RFC.

[7]  Jonathan D. Rosenberg,et al.  Network Working Group a Framework for Conferencing with the Session Initiation Protocol (sip) , 2022 .

[8]  Jon Peterson,et al.  Authenticated Identity Management in the Session Initiation Protocol (SIP) , 2018, RFC.

[9]  Mark Handley,et al.  SDP: Session Description Protocol , 1998, RFC.

[10]  Jonathan Lennox,et al.  A Real-time Transport Protocol (RTP) Header Extension for Client-to-Mixer Audio Level Indication , 2011, RFC.

[11]  Mats Näslund,et al.  The Secure Real-time Transport Protocol (SRTP) , 2004, RFC.

[12]  Elisabetta Carrara,et al.  The Use of Timed Efficient Stream Loss-Tolerant Authentication (TESLA) in the Secure Real-time Transport Protocol (SRTP) , 2006, RFC.

[13]  Jonathan Lennox,et al.  Encryption of Header Extensions in the Secure Real-time Transport Protocol (SRTP) , 2013, RFC.

[14]  Eric Rescorla.  WebRTC Security Architecture , 2019 .

[15]  Barry Leiba,et al.  Ambiguity of Uppercase vs Lowercase in RFC 2119 Key Words , 2017, RFC.

[16]  Eric Rescorla,et al.  Framework for Establishing a Secure Real-time Transport Protocol (SRTP) Security Context Using Datagram Transport Layer Security (DTLS) , 2010, RFC.