On-demand protection and authorization of playback of media assets
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United States of America Patent
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Nov 26, 2013
Grant Date -
Mar 25, 2010
app pub date -
Aug 19, 2009
filing date -
Aug 21, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
On-demand protection and authorization of playback of media assets includes receiving digital media at a server computer, storing intermediary data in a data store, and receiving a request from a client for the digital media. The method also includes generating a protected copy of the digital media from the digital media and the intermediary data. The method also includes storing a description of the protected copy in a database and sending the protected copy to the client. The method also includes receiving a request from the client to access the digital media and reading the description from the database based on information in the request. The method also includes sending a response to the client, the response indicating whether the client is authorized to access the digital media, and the response including cryptographic data to decrypt the protected digital media if the client is authorized to access the digital media.
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