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    • 9. 发明专利
    • Information processor, information recording medium manufacturing method and computer program
    • 信息处理器,信息记录媒体制造方法和计算机程序
    • JP2006236120A
    • 2006-09-07
    • JP2005051629
    • 2005-02-25
    • Sony Corpソニー株式会社
    • UEDA KENJIROOISHI TAKEOMURAMATSU KATSUMITAKASHIMA YOSHIKAZUKATO MOTOKI
    • G06F21/62G11B20/10G11B20/12H04L9/14
    • G11B20/0021G06F21/805G11B20/00086G11B20/00246G11B20/00362G11B20/00507H04L9/088H04L2209/60H04N7/1675H04N21/4405
    • PROBLEM TO BE SOLVED: To provide a configuration for efficiently generating and recording encrypted contents having a special data configuration, a key file or the like. SOLUTION: In the manufacturing of an information recording medium in which a segment as a content recording unit in the information recording medium is configured so as to have a plurality of variations applying respectively different encryption keys and which stores encryption contents in which a sequence set by selecting a particular variation can be decrypted at the time of reproduction processing, encrypted contents applying an auxiliary file and a key file are generated. For example, when each sector is data for a segment part, data for a non-segment part, or data for a segment part, a segment number and a variation number are recorded in an encrypted auxiliary file, and a key to be applied to encryption to each sector data, that is, a unit key and a segment key can immediately be discriminated. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种用于有效地生成和记录具有特殊数据配置,密钥文件等的加密内容的配置。 解决方案:在信息记录介质的制造中,其中作为信息记录介质中的内容记录单元的段被配置为具有应用分别不同的加密密钥的多个变体,并且存储加密内容,其中 可以在再现处理时对通过选择特定变体设置的序列进行解密,生成应用辅助文件和密钥文件的加密内容。 例如,当每个扇区是分段部分的数据时,非分段部分的数据或段部分的数据,段号和变化数被记录在加密的辅助文件中,以及应用于 可以立即识别对每个扇区数据的加密,即单位密钥和段密钥。 版权所有(C)2006,JPO&NCIPI