[Bug 24027] Define a generic Initialization Data solution for ISO Base Media File Format and/or Common Encryption (will be used by Clear Key)

https://www.w3.org/Bugs/Public/show_bug.cgi?id=24027

David Dorwin <ddorwin@google.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
           Assignee|adrianba@microsoft.com      |watsonm@netflix.com

--- Comment #5 from David Dorwin <ddorwin@google.com> ---
I have concerns about adding/requiring a hash. Some system designs might wish
to generate the PSSH in an area that does not have access to the actual key.
This might be especially true if the PSSH is generated on the frontend or in
the application.

It's also unclear how the CDM would use the hash. There is nothing in EME that
requires that the key(s) be provided in the next response or all at once,
though I guess some key systems might enforce that. There could also be
ambiguity/complexity in dealing with cases involving multiple keys (request or
license), especially when the number of keys in the license do not match the
number of key IDs/hashes in the license request.


Assigning to Mark to make a proposal.

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Received on Thursday, 13 February 2014 19:32:30 UTC