System for securing access to data streams
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United States of America Patent
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N/A
Issued Date -
N/A
app pub date -
Jan 3, 2011
filing date -
Apr 13, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method and an apparatus for protecting digital content, in which an output format for received compressed encrypted digital content is determined based, at least in part, on a rule determining whether clear compressed output format is allowed. When the clear compressed output format is not allowed, the content is received in a form in which it has been encrypted by at least two different encryption methods, and processing of the content comprises a combination of decrypting in accordance with one of the encryption methods and decompression in an atomic operation.
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