Source note · SRTP and media encryption negotiation
DTLS-SRTP derives the SRTP master key and salt for each direction from the DTLS handshake using the TLS exporter label 'EXTRACTOR-dtls_srtp', so no keys appear in SDP.
Checked 2026-09-23
- Vendor
- IETF
- Product
- DTLS-SRTP
- Subsystem
- key derivation
- 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 4.2 (Key Derivation)
Cite this note
APA
WarmTransfer. (2026, September 23). SRTP and media encryption negotiation: source note srtp-media-security-dtls-srtp-exporter. WarmTransfer. https://warmtransfer.net/knowledge/claims/srtp-media-security-dtls-srtp-exporter
BibTeX
@misc{warmtransfer-claim-srtp-media-security-dtls-srtp-exporter,
title = {SRTP and media encryption negotiation: source note srtp-media-security-dtls-srtp-exporter},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/srtp-media-security-dtls-srtp-exporter},
note = {Source note srtp-media-security-dtls-srtp-exporter, checked 2026-09-23}
}