Source note · SRTP and media encryption negotiation
RFC 4568 requires the master keys in an SDES answer to differ from those in the offer, to avoid keystream reuse.
Checked 2026-09-23
- Vendor
- IETF
- Product
- SDES
- Subsystem
- offer/answer
- 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 7.1.2 (Generating the Initial Answer - Unicast Streams); Section 8.2 (Keystream Reuse)
Cite this note
APA
WarmTransfer. (2026, September 23). SRTP and media encryption negotiation: source note srtp-media-security-sdes-distinct-answer-key. WarmTransfer. https://warmtransfer.net/knowledge/claims/srtp-media-security-sdes-distinct-answer-key
BibTeX
@misc{warmtransfer-claim-srtp-media-security-sdes-distinct-answer-key,
title = {SRTP and media encryption negotiation: source note srtp-media-security-sdes-distinct-answer-key},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/srtp-media-security-sdes-distinct-answer-key},
note = {Source note srtp-media-security-sdes-distinct-answer-key, checked 2026-09-23}
}