Technical Summary
This document specifies the Connection ID (CID) construct for the
Datagram Transport Layer Security (DTLS) protocol version 1.2.
A CID is an identifier carried in the record layer header that gives
the recipient additional information for selecting the appropriate
security association. In "classical" DTLS, selecting a security
association of an incoming DTLS record is accomplished with the help
of the 5-tuple. If the source IP address and/or source port changes
during the lifetime of an ongoing DTLS session then the receiver will
be unable to locate the correct security context. An explicit CID allows
for the DTLS association to persist across such address/port changes.
Working Group Summary
The document is of interest to a subset of the working group
participants. The participants are active and there is general
working group consensus behind the document.
Document Quality
The document has been reviewed by people implementing
the protocol. There are multiple implementations of this
an earlier version of extension, and the current version has
also been implemented.
Personnel
The Document Shepherd is Joseph Salowey and the responsible AD is Ben Kaduk