Source note · SRTP and media encryption negotiation
Because SDES puts the master key in cleartext SDP, RFC 4568 requires the signalling to be protected with message authentication and encryption, for example TLS, IPsec or S/MIME.
Checked 2026-09-23
- Vendor
- IETF
- Product
- SDES
- Subsystem
- security considerations
- Deployment
- any
- Region
- not restricted
- Release range
- RFC 4568
- Checked
- 2026-09-23
Sources
- RFC 4568: Session Description Protocol (SDP) Security Descriptions for Media Streams — IETF / RFC Editor · tier 1 standards and regulators · Section 8.3 (Signaling Authentication and Signaling Encryption)
Cite this note
APA
WarmTransfer. (2026, September 23). SRTP and media encryption negotiation: source note srtp-media-security-sdes-requires-signalling-protection. WarmTransfer. https://warmtransfer.net/knowledge/claims/srtp-media-security-sdes-requires-signalling-protection
BibTeX
@misc{warmtransfer-claim-srtp-media-security-sdes-requires-signalling-protection,
title = {SRTP and media encryption negotiation: source note srtp-media-security-sdes-requires-signalling-protection},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/srtp-media-security-sdes-requires-signalling-protection},
note = {Source note srtp-media-security-sdes-requires-signalling-protection, checked 2026-09-23}
}