[Bug 20960] EME is not limited to video.

https://www.w3.org/Bugs/Public/show_bug.cgi?id=20960

--- Comment #7 from Fred Andrews <fredandw@live.com> ---
(In reply to comment #4)
> (In reply to comment #2)
> > The consumption of the media keys is not defined so please leave this bug
> > open until the specification is complete and this can be reviewed.  In
> > particular nothing stops the CDM implementing a HTML engine and you have
> > failed to address this.
> 
> Can you be more specific as to why you think this concern is unique to EME?
> Do you have a specific scenario in mind?

This is unique to the EME because of the back channel that EME provides from
the CDM to the server.  An image decoder or a video decoder do not require a
back channel.

If you want to ignore the CDM in the consideration of the EME and improve the
safety and privacy then simply remove this back channel.

I expect the proponents would retort that EME would no longer support DRM
without the back channel, but I would suggest this just shows that EME is
designed for DRM and that the technical requirements should be specified so
that we can all objectively review them rather than them being inherent in the
design of the EME.

> Do you have a specific scenario in mind?

DRM would be attractive to a wider range of content authors than just video
authors, and if a CDM can support DRM then there would be demand for more
general HTML support within the CDM - I suggest it's inevitable that a CDM
would be written that supports a relative comprehensive HTML engine.  Even if
the CDM is not given network access by the OS it can still receive content via
the EME channel.

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Received on Wednesday, 20 February 2013 15:29:19 UTC