Selective and renewable encryption for secure distribution of video on-demand
AssigneeDIVA Systems Corporation
InventorsMichael R. Colligan, Yong Ho Son, Christopher Goode
Life of this patent
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AssigneeDIVA Systems Corporation
InventorsMichael R. Colligan, Yong Ho Son, Christopher Goode
Estimating the term…
Selective encryption is provided in a process which includes: determining whether a predetermined criterion is satisfied; setting a selective encryption status field if the predetermined criterion is satisfied; and encrypting an unencrypted payload to generate an encrypted payload, and constructing a packet with the encrypted payload, if the predetermined criterion is satisfied. The predetermined criterion may be one of several criteria, each of which reduce the required amount of encryption and decryption while maintaining a high level of security. Renewable encryption is provided in a process which includes: copying a first encrypted digital video program from a remote server to a video source; decrypting the first encrypted digital video program using a first key to generate an unencrypted digital video program; encrypting the unencrypted digital video program using a second key to generate a second encrypted digital video program; transmitting the second encrypted digital video program from the video source to the remote server; and deleting the first encrypted digital video program from the remote server.
A secure method for providing digital video programming, the method comprising:
An apparatus for securely providing digital video programming, the apparatus comprising:
A secure method for providing digital video programming, the method comprising:
An apparatus for securely providing digital video programming, the apparatus comprising:
Dependencies are inferred from the claim text.