Re: help me about encrypting WMV file with WMFSDK

• Previous message: Nick Haddad: "Re: help me about encrypting WMV file with WMFSDK"
• In reply to: Welchan: "Re: help me about encrypting WMV file with WMFSDK"
• Next in thread: Nick Haddad: "Encrypting WM files with WMFSDK Solution Found!"
• Messages sorted by: [ date ] [ thread ]

Date: Tue, 22 Jun 2004 16:12:49 -0400

I'm having the exact same problem. Is there something special we need
to do before setting the attributes.

Also the SDK says the lifetime if your settings persist with the
lifetime of your reader object. Are you all talking about the
WMDRMReader or the WMReader. In otherwords, does releasing your
IWMDRMReader pointer null all your DRM settings.

Thanks,
-Nick

Welchan wrote:
> I pasted the source code which set attributes of DRMWriter as below. Could
> you help me to figure out the erroneous configurations?
>
> Thanks you very much.
>
> HRESULT hr = S_OK;
>
> BOOL bUseDRM = TRUE;
>
> WORD wStreamNumber = 0;
>
> //
> // Set the DRMAttribute of the DRMwriter, Notify the Writer to use DRM
> //
>
> hr = m_pDRMWriter->SetDRMAttribute( wStreamNumber,
> g_wszWMUse_Advanced_DRM,
> WMT_TYPE_BOOL,
> (BYTE *)&bUseDRM,
> sizeof(BOOL) );
>
> if( FAILED( hr ) )
> {
> return( hr );
> }
>
> //
> // generate key related values
> //
> WCHAR* pwszKeyID;
> WCHAR* pwszKeySeed;
> WCHAR* pwszPrivKey;
> WCHAR* pwszPubKey;
> WCHAR* pwszAcqLicURL;
> WCHAR* pwszAcqV1LicURL;
> WCHAR* pwszLASignatureRootCert;
> WCHAR* pwszLASignatureCert;
> WCHAR* pwszLASignatureLicSrvCert;
> WCHAR* pwszLASignaturePrivKey;
> DWORD pcwchLength;
> /*
> hr = m_pDRMWriter->GenerateKeyID( NULL,
> &pcwchLength );
> if( FAILED( hr ) )
> {
> return( hr );
> }
>
> pwszKeyID = new WCHAR[pcwchLength];
> ZeroMemory(pwszKeyID, sizeof(WCHAR)*pcwchLength);
>
> hr = m_pDRMWriter->GenerateKeyID( pwszKeyID,
> &pcwchLength );
>
> if( FAILED( hr ) )
> {
> return( hr );
> }
> */
>
> pwszKeyID = L"BuRds416pw==";
> pwszKeySeed = L"HOPMvii0xZtOZrIdQkiw3Bbr1YADHzamc9RyhqH7";
> pwszPubKey = L"9YEcGkR3YHr78bgssVFGkKdmcmjNJPb!El2KvtMG7idFgKLY5T!rCQ==";
> pwszPrivKey = L"4NRd8IkalKUR3wIZ!1LOBTgG6CI=";
> pwszAcqLicURL = L"http://10.10.16.101/wmrm9/simple.asp";
> pwszAcqV1LicURL = L"";
> pwszLASignatureRootCert =
> L"AAEAADgAAAA5pDm2NlEjjZ68R69eNG5k5Pk*Z6O4QexIm1WZeOty5lakJMsLmykOJfETPkcKJz
> dt8oL5YXnx8NARtiAMhSdBhcWk4UtcmoC2K2Z8VkpHOhQGAwEAAAAKAAAAAQAAAAE=";
> pwszLASignatureCert =
> L"AAEAADgAAABGIa*vKXZ2ijaBEjLCY5GQkXM6GjsYz7btHlw4UTZgNHGCdeJMV!AcCH9PlMFgLs
> mh05JbuX5VzN16CxU77CtTwbDsEC9WanwRvZ1UNDsjbhQFBgEAAGMBAACcMQAAnDE=";
> pwszLASignatureLicSrvCert =
> L"AAEAADgAAACU5nxfUDZjSeDvFr0RdTVMvdgSGIkyEFPWLidpO4X1wNqXKMK5f7Je8bFDcBxiAk
> VQLkSjgral7OVRAHbHX5RznOC3FG9YFrXdGQhHXXDcUBQFBgEAAGMBAAAAAgAAnDE=";
> pwszLASignaturePrivKey = L"kZU6IzMFYY9UiY7*lVNpIPrTakQ=";
>
> //
> // Set the DRMAttribute of DRM Header attributes and properties
> //
>
> hr = m_pDRMWriter->SetDRMAttribute( wStreamNumber,
> g_wszWMDRM_LASignatureRootCert,
> WMT_TYPE_STRING,
> (BYTE *)pwszLASignatureRootCert,
> (wcslen( pwszLASignatureRootCert ) + 1)*sizeof(WCHAR) );
> if( FAILED( hr ) )
> {
> return( hr );
> }
>
> hr = m_pDRMWriter->SetDRMAttribute( wStreamNumber,
> g_wszWMDRM_LASignatureCert,
> WMT_TYPE_STRING,
> (BYTE *)pwszLASignatureCert,
> (wcslen( pwszLASignatureCert ) + 1)*sizeof(WCHAR) );
> if( FAILED( hr ) )
> {
> return( hr );
> }
>
> hr = m_pDRMWriter->SetDRMAttribute( wStreamNumber,
> g_wszWMDRM_LASignatureLicSrvCert,
> WMT_TYPE_STRING,
> (BYTE *)pwszLASignatureLicSrvCert,
> (wcslen( pwszLASignatureLicSrvCert ) + 1)*sizeof(WCHAR) );
> if( FAILED( hr ) )
> {
> return( hr );
> }
>
> hr = m_pDRMWriter->SetDRMAttribute( wStreamNumber,
> g_wszWMDRM_LASignaturePrivKey,
> WMT_TYPE_STRING,
> (BYTE *)pwszLASignaturePrivKey,
> (wcslen( pwszLASignaturePrivKey ) + 1)*sizeof(WCHAR) );
> if( FAILED( hr ) )
> {
> return( hr );
> }
>
> hr = m_pDRMWriter->SetDRMAttribute( wStreamNumber,
> g_wszWMDRM_HeaderSignPrivKey,
> WMT_TYPE_STRING,
> (BYTE *)pwszPrivKey,
> (wcslen( pwszPrivKey ) + 1)*sizeof(WCHAR) );
> if( FAILED( hr ) )
> {
> return( hr );
> }
>
> hr = m_pDRMWriter->SetDRMAttribute( wStreamNumber,
> g_wszWMDRM_KeySeed,
> WMT_TYPE_STRING,
> (BYTE *)pwszKeySeed,
> (wcslen( pwszKeySeed ) + 1)*sizeof(WCHAR) );
> if( FAILED( hr ) )
> {
> return( hr );
> }
>
> hr = m_pDRMWriter->SetDRMAttribute( wStreamNumber,
> g_wszWMDRM_DRMHeader_KeyID,
> WMT_TYPE_STRING,
> (BYTE *)pwszKeyID,
> (wcslen( pwszKeyID ) + 1)*sizeof(WCHAR) );
> if( FAILED( hr ) )
> {
> return( hr );
> }
>
> hr = m_pDRMWriter->SetDRMAttribute( wStreamNumber,
> g_wszWMDRM_DRMHeader_LicenseAcqURL,
> WMT_TYPE_STRING,
> (BYTE *)pwszAcqLicURL,
> (wcslen( pwszAcqLicURL ) + 1)*sizeof(WCHAR) );
> if( FAILED( hr ) )
> {
> return( hr );
> }
>
> hr = m_pDRMWriter->SetDRMAttribute( wStreamNumber,
> g_wszWMDRM_V1LicenseAcqURL,
> WMT_TYPE_STRING,
> (BYTE *)pwszAcqV1LicURL,
> (wcslen( pwszAcqV1LicURL ) + 1)*sizeof(WCHAR) );
> if( FAILED( hr ) )
> {
> return( hr );
> }
>
> return hr;
>
>
> "Geoff Dunbar [MSFT]" <geoffdu@online.microsoft.com> 写入邮件
> news:O2ULyFMTEHA.2416@TK2MSFTNGP12.phx.gbl...
>
>>That error could also be returned if you have configured any of the values
>>incorrectly, even if they have been set. Carefully check all of the values
>>that you've set.
>>
>>It could also be returned if you neglected to call BeginWriting, but that
>>seems unlikely.
>>
>>Thanks,
>>Geoff
>>
>>--
>>This posting is provided "AS IS" with no warranties, and confers no
>
> rights.
>
>>"Welchan" <cw97(remove in use)@tsinghua.org.cn> wrote in message
>>news:OW7onbDTEHA.1472@TK2MSFTNGP09.phx.gbl...
>>
>>>发件人: "Welchan" <cw97(remove in use)@tsinghua.org.cn>
>>>主题: how to use WMFSDK DRM appendum to package WMV file
>>>日期: 2004年6月3日 18:38
>>>
>>>I have followed the instructions described on WMFSDK docs as follows:
>>>
>>>1. Link to WMStubDRM.lib and, if necessary, unlink wmvcore.lib.
>>>2. Call the WMCreateWriter function to create the DRM writer. The first
>>>argument is reserved and must be set to NULL.
>>>3. Set a profile for the writer to use by calling IWMWriter::SetProfile
>
> or
>
>>>IWMWriter::SetProfileByID. You must set a profile in the writer before
>>>setting any DRM attributes. DRM is supported only for profiles that use
>>
>>the
>>
>>>Windows Media Audio or Windows Media Video codecs
>>>4. Obtain the writer object's IWMDRMWriter interface.
>>>5. Call IWMDRMWriter::SetDRMAttribute and set Use_Advanced_DRM to TRUE.
>>>6. If necessary, obtain the values to populate the DRM header's digital
>>>signature object. If you do not have a working version of Windows Media
>>>Rights Manager installed on your system, you must configure the ASF file
>>>header's digital signature object by specifying the following four
>>>attributes, which all must be obtained from Microsoft:
>>>DRM_LASignatureRootCert
>>>DRM_LASignatureCert
>>>DRM_LASignatureLicSrvCert
>>>DRM_LASignaturePrivKey
>>>7. Call IWMDRMWriter::SetDRMAttribute as many times as necessary to set
>>
>>the
>>
>>>required DRM header attributes and run-time properties. These properties
>>>persist for the lifetime of the writer object or until they are reset
>
> with
>
>>a
>>
>>>new value. They do not need to be reset for each new file you create.
>>>The following properties are required:
>>>DRM_HeaderSignPrivKey
>>>DRM_KeySeed
>>>DRM_V1LicenseAcqURL
>>>DRM_DRMHeader_KeyID
>>>DRM_DRMHeader_LicenseAcqURL
>>>The following properties are optional:
>>>DRM_DRMHeader_ContentID
>>>DRM_DRMHeader_IndividualizedVersion
>>>DRM_DRMHeader_ContentDistributor
>>>DRM_DRMHeader_SubscriptionContentID
>>>8. Write the file using the IWMWriter interface methods as described
>>>elsewhere in this documentation. To create a "live DRM" stream, simply
>>
>>write
>>
>>>to a network sink. You can also write to a push sink.
>>>
>>>But the HRESULT return value of IWMWriter::BeginWrite() is 0xC00D2764.
>
> It
>
>>>means "NS_E_DRM_NOT_CONFIGURED 0xC00D2764Not all of the necessary
>>
>>properties
>>
>>>for DRM have been set."
>>>
>>>Do I neglect some necessary steps or options setup? Any hint will be
>>
>>highly
>>
>>>appreciated.
>>>
>>>
>>>
>>
>>
>
>
>

• Previous message: Nick Haddad: "Re: help me about encrypting WMV file with WMFSDK"
• In reply to: Welchan: "Re: help me about encrypting WMV file with WMFSDK"
• Next in thread: Nick Haddad: "Encrypting WM files with WMFSDK Solution Found!"
• Messages sorted by: [ date ] [ thread ]