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US 2004/0057579 A1Published application
Roaming hardware paired encryption key generation
AssigneeCable Television Laboratories, Inc.
InventorJames W. Fahrny
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AssigneeCable Television Laboratories, Inc.
InventorJames W. Fahrny
Estimating the term…
The roaming hardware paired encryption key generation coalesces a content variable with a network, or subnet, address to generate an encryption key. The source generates a content identification that is unique to the content being encrypted and the network, or subnet, address is coalesced with the content identification to generate a unique encryption key for the content being encrypted. The encrypted digital content is transmitted to the destination devices identified by the network, or subnet address, along with the content identification. At the destination, the destination devices regenerate the encryption by coalescing the content identification and the network, or subnet, address in the same manner as coalesced at the source device. After regenerating the encryption key, the ciphertext is decrypted into plaintext.
A method for generating an encryption key for use by a host device to encrypt data for access by multiple devices connected on a network, said method comprising:
The method of claim 3 wherein generating a content identification comprises:
A method for encrypting data for distribution to a selected plurality of devices that are connected to a network that has a network address, wherein said network address includes an address common to said selected plurality of devices, the method comprising:
Dependencies are inferred from the claim text.