Patent Number: 7,826,620

Title: Information processor, information processing method, and computer program

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.

Inventors: Ueda; Kenjiro (Kanagawa, JP), Oishi; Tateo (Saitama, JP), Muramatsu; Katsumi (Tokyo, JP), Takashima; Yoshikazu (Tokyo, JP)

Assignee: Sony Corporation

International Classification: H04L 9/08 (20060101)

Expiration Date: 2019-11-02 0:00:00