Secure Real-Time Protocol (SRTP) for Software

The Secure Real-Time Transport Protocol, as described in RFC 3711, The Secure Real-time Transport Protocol (SRTP), provides a framework for the encryption and authentication of Real-time Transport Protocol (RTP) and RTP Control Protocol (RTCP) streams. Both RTP and RTCP are defined by RFC 3550, RTP: A Transport Protocol for Real-Time Applications.

Encryption ensures that the call content and associated signalling remains private during transmission.

Authentication ensures the following.

• Received packets are from the purported source
• Packets have not been tampered with during transmission
• A packet has not been replayed by a malicious server