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[Bug 16857] New: MEDIA_ERR_ENCRYPTED should exclude decrypt failure

From: <bugzilla@jessica.w3.org>
Date: Wed, 25 Apr 2012 19:45:37 +0000
To: public-html@w3.org
Message-ID: <bug-16857-2495@http.www.w3.org/Bugs/Public/>
https://www.w3.org/Bugs/Public/show_bug.cgi?id=16857

           Summary: MEDIA_ERR_ENCRYPTED should exclude decrypt failure
           Product: HTML WG
           Version: unspecified
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P3
         Component: Encrypted Media Extensions
        AssignedTo: adrianba@microsoft.com
        ReportedBy: fischman@google.com
         QAContact: public-html-bugzilla@w3.org
                CC: mike@w3.org, public-html-wg-issue-tracking@w3.org,
                    public-html@w3.org


ATM
http://dvcs.w3.org/hg/html-media/raw-file/tip/encrypted-media/encrypted-media.html#dom-media_err_encrypted
defines MEDIA_ERR_ENCRYPTED to encompass various problems including: "The
provided key could not be successfully applied".
This condition is impossible to implement in some encryption schemes and
difficult to implement in others.  It implies authentication (to differentiate
between a decryption error and a decode error where decryption "succeeded" but
generated garbage plaintext b/c of corrupt/incorrect key material or
ciphertext) and is thus misleading, so it should be dropped (and a decode error
event fired, instead).

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Received on Wednesday, 25 April 2012 19:59:18 GMT

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