[17] “Datagram Transport Layer Security” by E. Rescorla and N. Modadugu.
RFC TBD, June 2004.
[18] “Session Initiation Protocol (SIP) for Media Over Datagram Transport
Layer Security (DTLS)” by J. Fischl, H. Tschofenig, and E. Rescorla. IETF
Internet-Draft, February 2006. Work in Progress.
[19] “ZRTP: Extensions to RTP for Diffie-Hellman Key Agreement for SRTP”
by P. Zimmermann and A. Johnston. IETF Internet-Draft, February 2006.
Work in Progress.
[20] “SSH Protocol Architecture” by Ylonen, T., and C. Lonvick RFC 4251, Jan-
uary 2006.
SIP Security 171