Method for conditional access in a DMTS/DOCSIS enabled set top box environment
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United States of America Patent
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N/A
Issued Date -
Oct 19, 2006
app pub date -
Mar 30, 2006
filing date -
Mar 30, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The DOCSIS portion of a composite subscriber device is coupled to a video device. The DOCSIS portion ranges and obtain a symmetric session key generated and encrypted using the DOCSIS portion's private key, and broadcast from a central network device over a data channel. The session key is decrypted using the device's DOCSIS private key. The DOCSIS portion forwards the session key to a video control processor, which uses the session key to decrypt encrypted video control messages received by the video portion of the composite device over a video channle. The decrypted video control messages are used to process video content signals received at the composite subscriber device over the video channel.
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