Data processing: financial – business practice – management – or co – Business processing using cryptography – Usage protection of distributed data files
Reexamination Certificate
2006-05-23
2006-05-23
Fadok, Mark (Department: 3625)
Data processing: financial, business practice, management, or co
Business processing using cryptography
Usage protection of distributed data files
C705S059000, C705S080000, C705S051000, C705S054000, C705S026640, C705S027200, C713S193000
Reexamination Certificate
active
07051005
ABSTRACT:
A digital rights management (DRM) system operates on a computing device and requires a black box for performing decryption and encryption functions. To obtain the black box from a black box server, the DRM system requests such black box from such black box server. The black box server in response generates the black box, where such black box is unique and has a public/private key pair. The black box server then delivers the generated black box to the DRM system and the DRM system installs the delivered black box in such DRM system.
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Abburi Rajasekhar
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Blinn Arnold N.
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