Electrical computers and digital processing systems: support – Data processing protection using cryptography
Reexamination Certificate
2002-09-04
2009-02-24
Chai, Longbit (Department: 2431)
Electrical computers and digital processing systems: support
Data processing protection using cryptography
C713S182000, C713S183000, C713S184000, C713S185000, C713S186000, C726S003000, C726S004000, C726S005000, C726S006000, C380S030000, C380S232000
Reexamination Certificate
active
07496764
ABSTRACT:
Example embodiments relate to a method of transmitting encrypted data between a local server connected to one or several local peripherals. The local server may include a security device in charge of acquiring a first right of use of the data. The method may include transmitting the encrypted data from the local server towards a peripheral, extracting from the first right a second right corresponding to the part necessary for the decryption of the data in the peripherals, encrypting by the security module the second right by a pairing key specific to the couple formed by the security module of the local server and the security module of the peripheral, transmitting the encrypted second right to the local peripheral, decrypting with the help of the pairing key the second right by the security device of the peripheral, and decrypting by the peripheral the data encrypted by the second right.
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Chai Longbit
Harness & Dickey & Pierce P.L.C.
Nagravision S.A.
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