Retrieval and transfer of encrypted hard drive content from DVR set-top boxes
First Claim
1. A method for retrieval and transfer of encrypted content from a first set-top box, said method comprising the following steps:
- encrypting content to be stored on a first storage device of the first set-top box with a content instance key;
encrypting said content instance key with a public key of the first set-top box; and
encrypting a duplicate of said content instance key with one or more public keys of other than the first set-top box.
5 Assignments
0 Petitions
Accused Products
Abstract
A system and method for retrieval and transfer of encrypted content from a failed set-top box. When content is recorded to the storage device of a set-top box, the content is encrypted with a content instance key. This content instance key is encrypted with the public key of the set-top box and a duplicate of the content instance key is encrypted by another public key other than the public key of the set-top. In the event the set-top fails, the encrypted content on the storage device may be retrieved from the storage device by decrypting the duplicate content instance key with the private key that corresponds with the public key that encrypted the duplicate of the content instance key.
132 Citations
54 Claims
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1. A method for retrieval and transfer of encrypted content from a first set-top box, said method comprising the following steps:
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encrypting content to be stored on a first storage device of the first set-top box with a content instance key;
encrypting said content instance key with a public key of the first set-top box; and
encrypting a duplicate of said content instance key with one or more public keys of other than the first set-top box. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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- 25. A system for retrieval and transfer of at least a portion of encrypted content from a first storage device of a first set-top box, said first storage device comprising content encrypted with a content instance key, a first occurrence of said content instance key encrypted with a public key of said first set-top box, and another occurrence of said content instance key encrypted with a public key of other than said first set-top box.
- 39. A content transcription device (CTD) configured for receiving a storage device having encrypted content from a failed set-top box, said CTD having one or more private keys corresponding with one or more public keys used on said storage device, said CTD adapted to decrypted at least a portion of said encrypted content stored on said storage device with said one or more private keys such that said at least a portion of said content is available in the clear without utilizing a public key associated with the failed set-top box.
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51. A method for retrieval and transfer of encrypted access rights elements to content from a first set-top box, said method comprising the following steps:
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encrypting access rights elements to content to be stored on a first storage device of the first set-top box with a content instance key;
encrypting said content instance key with a public key of the first set-top box; and
encrypting a duplicate of said content instance key with one or more public keys of other than the first set-top box. - View Dependent Claims (52, 53, 54)
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Specification