Media on demand via peering
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United States of America Patent
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Jan 16, 2007
Issued Date -
N/A
app pub date -
Aug 8, 2005
filing date -
Sep 20, 2004
priority date (Note) -
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Abstract
A method of protecting media files includes dividing a media file into segments. Each segment is encrypted multiple times with a different encryption key each time. Downloads of the segments are controlled such that different combinations of segments and keys are downloaded. Key bundles are provided to user devices, with each key bundle is a combination of keys only for that user device combination of segments and keys.
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