Content distribution for multiple digital rights management
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United States of America Patent
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Oct 10, 2006
Grant Date -
Mar 11, 2004
app pub date -
Dec 13, 2002
filing date -
Sep 9, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A method and apparatus for enabling use of multiple digital rights management scenarios (DRM). Unencrypted data representing digital content is examined to identify at least segments of content for encryption. The identified segments of content are duplicated and then encrypted using a first encryption method associated with a first DRM to produce first encrypted segments. Duplicates are encrypted using a second encryption method associated with a second DRM to produce second encrypted segments. A set of pointers are generated that point to the first and second encrypted segments content. A file is then created containing first and second encrypted segments of content, pointers and unencrypted content along with DRM rights data to produce a selectively encrypted multiple DRM enabled file.
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