CONTROLLING ACCESS TO CONTENT USING MULTIPLE ENCRYPTIONS
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United States of America Patent
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Issued Date -
Sep 16, 2010
app pub date -
Mar 11, 2010
filing date -
Mar 11, 2009
priority date (Note) -
Abandoned
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Abstract
Controlling access to content using multiple encryptions, including: receiving content comprising media data; first encrypting a substantial portion of the content using a primary key; selecting a subset of the substantial portion of the content; and second encrypting the selected subset of the content using a secondary key different from the primary key.
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