Dear all, in an e-mail to this list (Nov 21) I described how to integrate GNU ZRTP into pjproject and thus enable ZRTP for pjmedia / pjsua based clients. After some hacking and testing here a first working GNU ZRTP implementation for pjproject. I tested the patch against the official pjproject-1.8.5 release and it worked, the same patch also works with SVN revision 3385. Prerequisites to enable GNU ZRTP for pjproject: Get the latest SVN for GNU ZRTP project and build GNU ZRTP. The path is: http://svn.savannah.gnu.org/svn/ccrtp/trunk/ Then change to ccrtp/extensions/zrtp and perform the usual configuration and make. GNU ZRTP provides autoconf and cmake based configuration. To build GNU ZRTP without ccRTP support (usually not needed if you use pjproject) apply the parameter "--without-ccrtp" to configure script or use "-Ddisable-ccrtp" if you use cmake to create the configuration. If you don't disable ccrtp then the configuration checks for GNU ccRTP and some other libs. After you built GNU ZRTP install it using make install. By default it installs in the /usr/local/ hierarchy. If you have GNU ccRTP installed make sure to uninstall it and rebuild you GNU ccRTP based clients if necessary. The GNU ZRTP for pjproject requires an openSSL development environment because it uses the bignum, SHA245, SHA384 and AES cipher functions from libcrypto. After you installed the latest GNU ZRTP (version 1.5.2) and you applied the patches you can run the aconfigure script and proceed as usual. The patch creates a new sample program in pjsip-apps/src/samples that shows how to enable ZRTP on the pjmedia RTP level. Attached to this mail is a short, hacked version of the simple-pjsua sample program that shows how to use ZRTP with the pjsua lib. Please be aware that this is a first version and it may contain bugs or other problems. However, the ZRTP protocol interoperability was check against other implementations already and shall not give problems :-). The header files contain documentation which should be ready for doxygen - however, I didn't test a doxygen run. Have fun. Best regards, Werner -------------- next part -------------- A non-text attachment was scrubbed... Name: 0001-Check-in-first-version-of-GNU-ZRTP-for-pjproject.patch.gz Type: application/x-gzip Size: 40770 bytes Desc: not available URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20101205/2d7e060c/attachment-0001.gz> -------------- next part -------------- A non-text attachment was scrubbed... Name: simple_pjsua.zip Type: application/zip Size: 3743 bytes Desc: not available URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20101205/2d7e060c/attachment-0001.zip>
