Over the past few years I and a few collaborators have been
working to develop a better system for key establishment
for standards-based real time voice (i.e., SIP/RTP). Skype
already has such a system, but unfortunately it's a closed system
and the available systems for SIP and RTP had some serious
problems. While this job is far from finished, today the
IESG approved the first round of documents describing the two
major pieces of this protocol: draft-ietf-avt-dtls-srtp and
draft-ietf-sp-dtls-srtp-framework. There are a few smaller documents
still and the minor task of getting widespread implementations
remains, but this is definitely progress. Thanks are due
to everyone who contributed to this effort.

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