Cryptography – Key management – Key distribution
Reexamination Certificate
2006-04-05
2010-11-02
Jung, David Y (Department: 2431)
Cryptography
Key management
Key distribution
C380S279000, C380S278000
Reexamination Certificate
active
07826620
ABSTRACT:
An information processor includes a data processing section that executes a processing of storing subsequently generated data, which is subsequently generated or acquired using information read from an information recording medium, onto a storage unit. The data processing section is configured to execute a processing of storing onto the storage unit encrypted subsequently generated data as encrypted data that is encrypted with a unit key as an encryption key corresponding to a content management unit to which the subsequently generated data belongs, and execute a processing of acquiring an encrypted bind unit key and storing the encrypted bind unit key onto the storage unit, the encrypted bind unit key being encrypted data of a bind unit key including as its constituent data the unit key and one of key information acquired from the information processor and identification information acquired from the information recording medium.
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Muramatsu Katsumi
Oishi Tateo
Takashima Yoshikazu
Ueda Kenjiro
Jung David Y
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Sony Corporation
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