Method and apparatus for transmitting content data and...

Details Method and apparatus for transmitting content data and... Method and apparatus for transmitting content data and...

2001-12-27

2008-11-18

Moise, Emmanuel L (Department: 2137)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

By stored data protection

C726S026000, C380S277000, C705S051000

Reexamination Certificate

active

07454628

ABSTRACT:
A data transmission method and apparatus for transmitting data such as encrypted content data, wherein a device that is to be a destination of transmission is authenticated and, if the device has not been authenticated, encrypted data read out from a storage unit is decrypted to give decoded data, which then is re-encrypted, based on innate key data acquired from the device that is to be the destination of transmission, to give re-encrypted data. The re-encrypted data is then transmitted to the device that is to be a destination of transmission.

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Sabrina De Capitani di Vimercati, Sara Foresti, Sushil Jajodia, Stefano Paraboschi, Pierangela Samarati, “Over-encryption: Management of Access Control Evolution on Outsourced Data”, Sep. 2007, VLDB '07: Proceedings of the 33rd international conference on Very large data bases, pp. 123-134.

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