= SRTP Support in PJSIP =

Support for SRTP was included in PJSIP in version 0.9 (r...).

== Requirements ==

SRTP feature in PJSIP uses [http://sourceforge.net/projects/srtp/ libsrtp] created by David A. !McGrew of Cisco Systems, Inc. Copy of [http://sourceforge.net/projects/srtp/ libsrtp] is included in PJSIP source tree. There is no other software to download.

[http://sourceforge.net/projects/srtp/ libsrtp] is distributed under BSD-like license, you must satisfy the license requirements if you incorporate SRTP in your application. Please see [http://www.pjsip.org/licensing.htm PJSIP licensing] page for more information about this and other third party libraries used in PJSIP.


== Building PJSIP with SRTP Support ==

=== Availability ===

SRTP feature is currently available in:
 - Visual C++ 6 and 2005 (for Windows targets)
 - GNU based build system (for Linux, Mingw, MacOS X, and *nix based platforms)

Support for WinCE/Windows Mobile targets and Symbian will be added very soon.

=== Building ===

libsrtp is always built by default, from {{{third_party/build/srtp}}} directory.

Support for SRTP is enabled by default in PJMEDIA and PJSUA-LIB. To '''disable''' this feature, declare this in your {{{config_site.h}}}:
{{{
#define PJMEDIA_HAS_SRTP  0
}}}

== Using SRTP Transport ==

=== Implementation Note ===

==== Changes in Media Transport Interface ====

==== pjmedia_transport_srtp Implementation ====

=== Using SRTP in PJSUA-LIB ===

=== Using SRTP Transport Directly ===