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Re: [X3D] Encrypted Media Extensions

From: Don Brutzman <brutzman@nps.edu>
Date: Fri, 16 Aug 2013 04:43:47 -0700
Message-ID: <520E1073.1000600@nps.edu>
To: Joe D Williams <joedwil@earthlink.net>
CC: X3D Graphics member mailing list <x3d@web3d.org>, Declarative 3D Community Group <public-declarative3d@w3.org>
cc: declarative 3d group

On 8/15/2013 3:19 PM, Joe D Williams wrote:
> http://www.w3.org/TR/encrypted-media/#cdm

> Encrypted Media Extensions
> W3C First Public Working Draft 10 May 2013
> Abstract
> This proposal extends HTMLMediaElement providing APIs to control playback of protected content.
> The API supports use cases ranging from simple clear key decryption to high value video (given an appropriate user agent implementation). License/key exchange is controlled by the application, facilitating the development of robust playback applications supporting a range of content decryption and protection technologies.
> This specification does not define a content protection or Digital Rights Management system. Rather, it defines a common API that may be used to discover, select and interact with such systems as well as with simpler content encryption systems. Implementation of Digital Rights Management is not required for compliance with this specification: only the simple clear key system is required to be implemented as a common baseline.
> The common API supports a simple set of content encryption capabilities, leaving application functions such as authentication and authorization to page authors. This is achieved by requiring content protection system-specific messaging to be mediated by the page rather than assuming out-of-band communication between the encryption system and a license or other server.

Thanks Joe, looks interesting.  We should keep this in mind while 
pursuing component technologies for the X3D Compressed Binary Encoding 

all the best, Don
Don Brutzman  Naval Postgraduate School, Code USW/Br       brutzman@nps.edu
Watkins 270,  MOVES Institute, Monterey CA 93943-5000 USA   +1.831.656.2149
X3D graphics, virtual worlds, navy robotics http://faculty.nps.edu/brutzman
Received on Friday, 16 August 2013 11:44:17 UTC

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