Importance

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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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First Claim