While the Secure Real-time Transport Protocol (SRTP) provides
confidentiality for the contents of a media packet, a significant
amount of metadata is left unprotected, including RTP header
extensions and contributing sources (CSRCs). While there have been
previous attempts to protect this data, they have had limited
deployment, due to complexity as well as technical limitations.
This document defines Cryptex as a new mechanism that completely
encrypts header extensions and CSRCs and uses simpler signaling with
the goal of facilitating deployment.
Working Group Summary
Working group handling was uncontroversial once the document was adopted.
In general, the discussions converged rapidly and there were no
By IETF 111 (draft -02), test vectors and two implementations
(libsrtp and jitsi-srtp) existed.
There appear to be no concerns about document quality.
Bernard Aboba is the Document Shepherd.
Murray Kucherawy is the responsible Area Director.