Yealink & ZRTP - VoIP Encryption in a Surveillance Society

[ruiseixas]

Hi,

ZRTP is the new protocol that guarantees private calls, it uses Diffie-Hellman key exchange and the Secure Real-time Transport Protocol (SRTP) for encryption! Contrary to SRTP, ZRTP gives protection against man-in-the-middle (MiTM) attacks, and, it doesn't rely on servers, it relies on the RTP media layer not the SIP signaling protocol, so it's completely invisible to the SIP server, the SIP server company will not know at all if you are or aren't encrypting your call!

• Zimmermann Real-time Transport Protocol (ZRTP)
  • http://en.wikipedia.org/wiki/ZRTP
• Your first ZRTP voice call with Jitsi
  • http://youtu.be/udBBDHT-_UA
• DEFCON 16: zfone
  • http://youtu.be/oc5kAVZ_dP8
• VoIP Encryption in a Surveillance Society
  • http://youtu.be/IP39ISsX9o0

I think there is many domestic consumers willing to buy a phone with ZRTP, and it is a very good way to promote a product, mainly when there is no brands selling SIP phones with such a attribute.

I believe that a SIP phone with ZRTP well promoted it will easily becomes a best seller!

Regards,
Rui