Note
Access to this page requires authorization. You can try signing in or changing directories.
Access to this page requires authorization. You can try changing directories.
This protocol provides the same functionality as the Secure Real-Time Transport Protocol (SRTP) by providing confidentiality, message authentication, and replay protection to Real-Time Transport Protocol (RTP) traffic and to the control traffic for RTP, the Real-Time Transport Control Protocol (RTCP).
This protocol is a strict subset of SRTP and differs from it in the following two key aspects. In all other cases, this protocol follows standard SRTP.
The first key difference is that this protocol supports a subset of the SRTP default cryptographic transform algorithms, and it requires certain encryption and authentication algorithm parameters to be fixed values. For example, the NULL cipher transform is not supported.
The second key difference is that there is a set of "MAY, SHOULD, MUST, SHOULD NOT, MUST NOT" protocol behaviors where this protocol differs in behavior from [RFC3711]. Section 3 enumerates these behavioral differences.