SRTP
----

The TLS protocol was extended in RFC5764 to provide keying material to the Secure RTP (SRTP) protocol. The SRTP protocol provides an encapsulation of encrypted data that is optimized for voice data. With the SRTP TLS extension two peers can negotiate keys using TLS or DTLS and obtain keying material for use with SRTP. The available SRTP profiles are listed below.

     [file gnutls_srtp_profile_t not included]
Figure: Supported SRTP profiles