Real-Time Communication in WEB-browsers (rtcweb)
------------------------------------------------

 Charter

 Current Status: Active

 Chairs:
     Cullen Jennings <fluffy@iii.ca>
     Sean Turner <sean+ietf@sn3rd.com>
     Ted Hardie <ted.ietf@gmail.com>

 Applications and Real-Time Area Directors:
     Ben Campbell <ben@nostrum.com>
     Alexey Melnikov <aamelnikov@fastmail.fm>
     Adam Roach <adam@nostrum.com>

 Applications and Real-Time Area Advisor:
     Adam Roach <adam@nostrum.com>

 Mailing Lists:
     General Discussion: rtcweb@ietf.org
     To Subscribe:       https://www.ietf.org/mailman/listinfo/rtcweb
     Archive:            https://mailarchive.ietf.org/arch/browse/rtcweb/

Description of Working Group:


    There are a number of proprietary implementations that provide direct
    interactive rich communication using audio, video, collaboration,
    games, etc. between two peers' web-browsers. These are not
    interoperable, as they require non-standard extensions or plugins to
    work.  There is a desire to standardize the basis for such
    communication so that interoperable communication can be established
    between any compatible browsers. The goal is to enable innovation on
    top of a set of basic components.  One core component is to enable
    real-time media like audio and video, a second is to enable data
    transfer directly between clients.

    This work will be done in collaboration with the W3C.  The IETF WG
    will produce architecture and requirements for selection and profiling
    of the on the wire protocols. The architecture needs to be coordinated
    with W3C.  The IETF WG work will identify state information and events
    that need to be exposed in the APIs as input to W3C. The W3C will be
    responsible for defining APIs to ensure that application developers
    can control the components. We will reach out to the developer
    community for consultation and early feedback on implementation.

    The security and privacy goals and requirements will be developed by
    the WG. The security model needs to be coordinated with the W3C.  The
    work will also consider where support for extensibility is needed. RTP
    functionalities, media formats, security algorithms are example of
    things that commonly need extensions, additions or replacement, and
    thus some support for negotiation between clients is required.

    The WG will perform the following work:

    1.  Define the communication model in detail, including how session
        management is to occur within the model.

    2.  Define a security model that describes the security and privacy
        goals and specifies the security protocol mechanisms necessary
        to achieve those goals.

    3.  Define the solution - protocols and API requirements - for
        firewall and NAT traversal.

    4.  Define which media functions and extensions shall be supported in
        the client and their usage for real-time media, including media
        adaptation to ensure congestion safe usage.

    5.  Define what functionalities in the solution, such as media codecs,
        security algorithms, etc., can be extended and how the
        extensibility mechanisms works.

    6.  Define a set of media formats that must or should be supported by
        a client to improve interoperability.

    7.  Define how non media data is transported between clients in a
        secure and congestion safe way.

    8.  Provide W3C input for the APIs that comes from the communication
        model and the selected components and protocols that are part of
        the solution.

    9.  The group will consider options for interworking with legacy VoIP
        equipment.

    This work will be done primarily by using already defined protocols or
    functionalities. If there is identification of missing protocols or
    functionalities, such work can be requested to be done in another
    working group with a suitable charter or by requests for chartering it
    in this WG or another WG. The following topics will be out of scope
    for the initial phase of the WG: RTSP, RSVP, NSIS, Location services,
    Resource Priority, and IM & Presence specific features.

    The products of the working group will support security and keying as
    required by BCP 61 and be defined for IPv4, IPv6, and dual stack
    deployments. The Working Group will consider the possibility of
    defining a browser component that implements an existing session
    negotiation and management protocol. The working group will follow BCP
    79, and adhere to the spirit of BCP 79. The working group cannot
    explicitly rule out the possibility of adopting encumbered
    technologies; however, the working group will try to avoid encumbered
    technologies that require royalties or other encumbrances that would
    prevent such technologies from being easy to use in web browsers.




Goals and Milestones:
  Done     - Complete Overview (and hold for dependency resolution) (draft-ietf-rtcweb-overview)
  Done     - Send Use Cases document (draft-ietf-rtcweb-use-cases-and- requirements) to IESG for publication as Informational
  Mar 2014 - Send Security and Privacy Problem Statement (draft-ietf- rtcweb-security) to IESG for publication as Informational
  Done     - Send Media Transport (draft-ietf-rtcweb-rtp-usage) to IESG for publication as Proposed Standard
  Done     - Audio Processing and Audio Codecs (draft-ietf-rtcweb-audio) to IESG for publication as Proposed Standard
  Done     - Send Data Stream Transport for non-media data (draft-ietf- rtcweb-data-channel) to IESG for publication as Proposed Standard
  Jun 2014 - Send Security Solution (draft-ietf-rtcweb-security-arch) to IESG for publication as Proposed Standard
  Done     - Send Specification of Transport Protocols and their NAT Traversal to IESG for publication as Proposed Standard
  Done     - Send Signalling Negotiation and NAT Traversal (draft-ietf- rtcweb-jsep) to IESG for publication as Proposed Standard
  Done     - Send STUN Usage for Consent Freshness to IESG for publication as proposed standard
  Done     - Video Processing and Video Codecs (draft-ietf-rtcweb-video) to IESG for publication as Proposed StandardVideo Processing and Video Codecs (draft-ietf-rtcweb-video) to IESG for publication as Proposed Standard
  Done     - Send Overview (after dependencies are ready) to IESG for publication as Applicability Statement
  Mar 2019 - Send Using Multicast DNS to protect privacy when exposing ICE candidates (draft-ietf-rtcweb-mdns-ice-candidates) to IESG as Informational