[Bug 25269] Add a container-independent initialization data type for providing a list of key IDs to createSession()

https://www.w3.org/Bugs/Public/show_bug.cgi?id=25269

--- Comment #7 from David Dorwin <ddorwin@google.com> ---
(In reply to Joe Steele from comment #6)
> The
> information about how to use the key ID to decrypt content is contained
> within the PSSH. If the PSSH is not present, in general the DRM does not
> have enough information to retrieve the key needed to decrypt the content.

Are you referring to information related to key chaining and/or domain keys?
CENC specifies AES-CTR mode, so it's unclear what else is necessary to map a
key ID to a decryption key and apply it.

I wouldn't say that the key ID is not enough in general. There are plenty of
services in production where it is.

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Received on Monday, 7 April 2014 19:08:04 UTC