Clearport/SRTP / SRTCP

SRTP / SRTCP

SRTP and SRTCP protect RTP media and RTCP control. Ports follow the negotiated RTP transport; security keys and crypto profiles are established by a separate agreed mechanism.

Scope: SRTP / SRTCP — requirements depend on the selected profile.

security mechanism · Catalog reviewed 2026-09-27

Related requirements

Review these entries for the services used in your design.

rtpsipwebrtc
Audio/Video TransportOpen Standard

Infrastructure Requirements

  1. Compatible media transport, cryptographic profile and key-establishment method
  2. correct SRTP/SRTCP handling at both endpoints.

Network & Physical Requirements

Port / allocationTransportConnection / signal flowFeature and requirementEvidence
NegotiatedUDPSecure media sender → Secure media receiver

Profile requirement · Core

Protected RTP/RTCP media

SRTP/SRTCP over negotiated UDP

Agree key exchange and crypto suite, for example DTLS-SRTP in WebRTC. TLS signalling alone does not enable SRTP.

Source checked 2026-09-27

RFC 3711, Sections 3.1 and 3.4: SRTP and SRTCP packet formats

Gotchas & IT Notes

  • ⚠SRTP does not define a universal firewall port or key exchange. Match the negotiated transport and cryptographic context.
Source: https://www.rfc-editor.org/rfc/rfc3711.html