Source note · SRTP and media encryption negotiation
SRTP keeps a 32-bit rollover counter (ROC) that the sender must increment each time the 16-bit RTP sequence number wraps, and the ROC forms part of the packet index used for encryption.
Checked 2026-09-23
- Vendor
- IETF
- Product
- SRTP
- Subsystem
- packet index
- Deployment
- any
- Region
- not restricted
- Release range
- RFC 3711
- Checked
- 2026-09-23
Sources
- RFC 3711: The Secure Real-time Transport Protocol (SRTP) — IETF / RFC Editor · tier 1 standards and regulators · Section 3.3.1 (Packet Index Determination, and Sender's Processing)
Cite this note
APA
WarmTransfer. (2026, September 23). SRTP and media encryption negotiation: source note srtp-media-security-rfc3711-roc. WarmTransfer. https://warmtransfer.net/knowledge/claims/srtp-media-security-rfc3711-roc
BibTeX
@misc{warmtransfer-claim-srtp-media-security-rfc3711-roc,
title = {SRTP and media encryption negotiation: source note srtp-media-security-rfc3711-roc},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/srtp-media-security-rfc3711-roc},
note = {Source note srtp-media-security-rfc3711-roc, checked 2026-09-23}
}