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[Bug 20552] New: Encrypted Block Encountered algorithm should not reference Initialization Data

From: <bugzilla@jessica.w3.org>
Date: Wed, 02 Jan 2013 21:16:19 +0000
To: public-html-media@w3.org
Message-ID: <bug-20552-5436@http.www.w3.org/Bugs/Public/>
https://www.w3.org/Bugs/Public/show_bug.cgi?id=20552

            Bug ID: 20552
           Summary: Encrypted Block Encountered algorithm should not
                    reference Initialization Data
    Classification: Unclassified
           Product: HTML WG
           Version: unspecified
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P3
         Component: Encrypted Media Extensions
          Assignee: adrianba@microsoft.com
          Reporter: ddorwin@google.com
        QA Contact: public-html-bugzilla@w3.org
                CC: mike@w3.org, public-html-media@w3.org

http://dvcs.w3.org/hg/html-media/raw-file/tip/encrypted-media/encrypted-media.html#algorithms-enrypted-block
step 4 refers to Initialization Data in the block or its parent and extracts
the key ID from it. However, Initialization Data is not always the source of
the current block's key identifier. ISO CENC is one such case.

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