%% You should probably cite rfc5479 instead of this I-D. @techreport{ietf-sip-media-security-requirements-09, number = {draft-ietf-sip-media-security-requirements-09}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-ietf-sip-media-security-requirements/09/}, author = {Steffen Fries and Hannes Tschofenig and Dan Wing and Francois Audet}, title = {{Requirements and Analysis of Media Security Management Protocols}}, pagetotal = 45, year = 2009, month = jan, day = 9, abstract = {This document describes requirements for a protocol to negotiate a security context for SIP-signaled Secure RTP (SRTP) media. In addition to the natural security requirements, this negotiation protocol must interoperate well with SIP in certain ways. A number of proposals have been published and a summary of these proposals is in the appendix of this document. This memo provides information for the Internet community.}, }