Source note · SRTP and media encryption negotiation
In DTLS-SRTP, DTLS is used only to establish keys. Once use_srtp is negotiated, RTP and RTCP are protected solely by SRTP and never sent as DTLS application data.
Checked 2026-09-23
Application data is never sent in DTLS record-layer 'application_data' packets.
- Vendor
- IETF
- Product
- DTLS-SRTP
- Subsystem
- architecture
- Deployment
- any
- Region
- not restricted
- Release range
- RFC 5764
- Checked
- 2026-09-23
Sources
- RFC 5764: Datagram Transport Layer Security (DTLS) Extension to Establish Keys for the Secure Real-time Transport Protocol (SRTP) — IETF / RFC Editor · tier 1 standards and regulators · Section 4.1 (The use_srtp Extension)
Cite this note
APA
WarmTransfer. (2026, September 23). SRTP and media encryption negotiation: source note srtp-media-security-dtls-srtp-media-in-srtp. WarmTransfer. https://warmtransfer.net/knowledge/claims/srtp-media-security-dtls-srtp-media-in-srtp
BibTeX
@misc{warmtransfer-claim-srtp-media-security-dtls-srtp-media-in-srtp,
title = {SRTP and media encryption negotiation: source note srtp-media-security-dtls-srtp-media-in-srtp},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/srtp-media-security-dtls-srtp-media-in-srtp},
note = {Source note srtp-media-security-dtls-srtp-media-in-srtp, checked 2026-09-23}
}