[Bug 17682] Clear Key: Document how keys and key IDs are associated

https://www.w3.org/Bugs/Public/show_bug.cgi?id=17682

--- Comment #19 from David Dorwin <ddorwin@google.com> ---
(In reply to David Dorwin from comment #1)
> A related issue is the following text from 6.1:
>   message = a container-specific unique key identifier extracted from the
> initData parameter
> 
> The intent of this text was that the UA would do the work of converting a
> potentially opaque initData to a key ID that a simple application could use
> to look up a key. The problem is that this assumes that the initData:
>  1) Contains a key ID
>  2) Is associated with exactly one key
> 
> ISO BMFF using CENC is not compatible with these assumptions, so we'll need
> to come up with a solution for ISO and/or that works across containers.

I filed bug 24027 to track a solution for using Clear Key with ISO BMFF and/or
CENC.

This bug is now entirely focused on the format of the license passed to
update().

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Received on Saturday, 7 December 2013 01:26:45 UTC