%% You should probably cite rfc4568 instead of this I-D. @techreport{ietf-mmusic-sdescriptions-12, number = {draft-ietf-mmusic-sdescriptions-12}, 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-mmusic-sdescriptions/12/}, author = {Flemming Andreasen and Dan Wing and Mark Baugher}, title = {{Session Description Protocol (SDP) Security Descriptions for Media Streams}}, pagetotal = 44, year = 2005, month = sep, day = 12, abstract = {This document defines a Session Description Protocol (SDP) cryptographic attribute for unicast media streams. The attribute describes a cryptographic key and other parameters that serve to configure security for a unicast media stream in either a single message or a roundtrip exchange. The attribute can be used with a variety of SDP media transports, and this document defines how to use it for the Secure Real-time Transport Protocol (SRTP) unicast media streams. The SDP crypto attribute requires the services of a data security protocol to secure the SDP message. {[}STANDARDS-TRACK{]}}, }