Secure storage and replay of media programs using a hard-paired receiver and storage device
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United States of America Patent
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Mar 20, 2012
Grant Date -
N/A
app pub date -
Jul 21, 2000
filing date -
Jul 21, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
A method and apparatus for storing and retrieving program material for subsequent replay is disclosed. The method comprises the steps of receiving a data stream comprising the program material encrypted according to a first encryption key, decrypting the program material; re-encrypting the program material according to a second encryption key; and storing the re-encrypted material in a media storage device. The program material is played back by retrieving the re-encrypted material from the media storage device and decrypting the re-encrypted program material. In one embodiment, the second encryption key is derived from metadata describing replay rights. In a further embodiment, the media storage device also stores the second encryption key which has been further encrypted by a key that is unique to the device used to receive the program material.
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