SRTP Support in PJSIP

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

Requirements

SRTP feature in PJSIP uses ​libsrtp created by David A. McGrew of Cisco Systems, Inc. Copy of ​libsrtp is included in PJSIP source tree. There is no other software to download.

​libsrtp is distributed under BSD-like license, you must satisfy the license requirements if you incorporate SRTP in your application. Please see ​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