RTP Security (RTPSEC)
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- Mailing list: http://www.imc.org/ietf-rtpsec/
- BoF Session Chairs: Dan Wing, Russ Housley
- Sponsoring AD: Cullen Jennings, RAI Area Director
There are currently a large number of mechanisms defined or under
consideration by the IETF to establish SRTP [RFC3711] keys between
endpoints. Although an endpoint can implement several mechanisms, many
of these mechanisms are intended to provide standalone solutions and
these mechanisms are not interoperable with each other. The IETF needs
to converge on a interoperable solution to this problem.
At IETF 66 in Montreal the Security and RAI areas held a joint RTPSEC
BOF in an attempt to converge on a set of requirements and broad
architectural approach for attacking this problem. The results
can be found in the minutes [0] of that meeting. In the time since
Montreal, a fair amount of work has been done on various aspects
of this problem. The purpose of this BOF is to come to agreement
on an action plan for providing a complete solution.
In Montreal there was broad consensus on the need for some form
of media-plane key management protocol (MPKMP).
The two major open issues are:
1. Whether (and how) the signalling needs to be coupled with
the MPKMP(s).
2. Which MPKMP(s) should be the basis for future work.
Presentations should focus on architectural issues not technical
details, which will be resolved in the appropriate WGs.
Approximate Agenda
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Chair Agenda bash 5
Chair Summary of Montreal Discussion 15
Andreassen Status of MMUSIC SDP negotiation work 10
All Discussion of signalling/MPKMP relationship 30
Zimmermann ZRTP 15
McGrew DTLS-SRTP 15
Other protocols?...
All Discussion of which MPKMP(s) to proceed with? 30
Chair/ADs Wrap-up
The expected outcome of this BOF is to resolve the above issues and
to come to consensus on:
- The set of work items which must be completed.
- A work plan for each work item including where it will be performed.
Background Reading:
draft-wing-rtpsec-keying-eval-01.txt
draft-wing-media-security-requirements-00.txt
draft-ietf-mmusic-sdp-capability-negotiation-00.txt
draft-zimmermann-avt-zrtp-02.txt
draft-fischl-sipping-media-dtls-01
draft-mcgrew-tls-srtp-00
[0] http://www3.ietf.org/proceedings/06jul/minutes/rtpsec.txt