Method and apparatus for securing control words
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United States of America Patent
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-
Feb 24, 2004
Grant Date -
N/A
app pub date -
Feb 3, 2000
filing date -
Mar 30, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In accordance with one embodiment, a method for securing control words is provided. The method includes receiving scrambled digital content in a descrambler integrated circuit. The method further includes receiving an encrypted control word in the descrambler integrated circuit, decrypting the encrypted control word using a key stored in a register circuit of the descrambler integrated circuit, and descrambling the scrambled digital content in the descrambler integrated circuit using the decrypted control word.
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