Security Protocol
Overview
ZRTP is a key agreement protocol, which performs the Diffie-Hellman key exchange between two end points in a VoIP (Voice over Internet Protocol) telephony call, based on the RTP (Real-time Transport Protocol) media stream.On March 5, 2006, Phil Zimmermann, Alan Johnston and Jon Callas submitted the ZRTP to the Internet Engineering Task Force (IETF).
Overview
Secure Real-time Transport Protocol (SRTP) is a security protocol for Real-time Transport Protocol (RTP), which is intended to provide replay protection, encryption, and message integrity and authentication to the RTP data in both multicast and unicast networks. In March 2004, Internet Engineer Task Force (IETF) published SRTP has RFC 3711.