---------- Forwarded message ---------- From: David Sugar <[email protected]> Date: 01-oct-2006 19:16 Subject: [hipatia] GNU Telephony Secure Calling Introduced To: Coordinadores de Hipatia <[email protected]> Friends, starting today we are releasing the GNU RTP Stack with support for the "Secure RTP profile", RFC 3711, which allows for encryption of voice calls over VOIP. In addition, we are releasing native support for Phil Zimmermann's ZRTP protocol, which offers a complete and transparent way to transfer encrypted voice over existing infrastructure. This work was completed for the GNU RTP stack outside of the United States with the incredible effort of Werner Dittmann, and extensive help by Michel de Boer, who works on the Twinkle Softphone. These efforts together represent the first step of how I envision we can provide intercept-free communications worldwide, both privately and over the public Internet. In addition, it has been well demonstrated by recent events how important it is to secure call session information from passive data mining, which we will do through TLS enabled SIP in the future, and to obscure the ip address of communicating endpoints, such as through the use of anonymous RTP proxies. The initial results of this work is now immediately usable by everyone today, starting with GNU ccrtp 1.5.0, the new libzrtpcpp 0.9.0, and the 0.9 release of the Twinkle softphone client, which supports the SRTP and ZRTP functions offered in our new release of the GNU RTP Stack. I will comment much more on Secure Calling in the near future. Downloads: http://ftp.gnu.org/pub/gnu/commoncpp/commoncpp2-1.5.0.tar.gz http://ftp.gnu.org/pub/gnu/ccrtp/ccrtp-1.5.0.tar.gz http://ftp.gnu.org/pub/gnu/ccrtp/libzrtpcpp-0.9.0.tar.gz http://www.xs4all.nl/~mfnboer/twinkle/download/twinkle-0.9.tar.gz Some additional resources: Phil Zimmerman's zrtp specification; http://www.infosecwriters.com/text_resources/pdf/Zfone_SSotillo.pdf. Zfone project; http://www.philzimmermann.com/zfoneproject/index.html. GNU Telephony Secure Calling; http://wiki.gnutelephony.org/index.php/Secure_Call. Twinkle Softphone; http://www.twinklephone.com/. _______________________________________________ lista coordinadores-hipatia [email protected] http://listas.hipatia.info/mailman/listinfo/coordinadores-hipatia www.listas.hipatia.info - [email protected] -- Diego Saravia [email protected] NO FUNCIONA->[email protected]