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    Information processing device, information processing method, and program
    3.
    发明授权
    Information processing device, information processing method, and program 有权
    信息处理装置，信息处理方法和程序

    公开(公告)号：US09590953B2

    公开(公告)日：2017-03-07

    申请号：US14573809

    申请日：2014-12-17

    申请人： Sony Corporation ,  Sony Pictures Entertainment Inc.

    发明人： Kenjiro Ueda ,  Tateo Oishi ,  Yoshikazu Takashima

    IPC分类号： H04L29/06 ,  H04L29/08

    CPC分类号： H04L63/0428 ,  G06F21/10 ,  G06F2221/0704 ,  G06F2221/0737 ,  G11B20/00086 ,  G11B20/00188 ,  G11B20/00492 ,  H04L63/10 ,  H04L67/32

    摘要： Provided is an information processing device including: a data processing unit that performs a content playback process; and a communication unit that communicates with a server, wherein the content is content that has a segment region configured with a plurality of pieces of variation data which can be respectively decrypted by different keys, and for which a plurality of playback paths can be configured according to variation data which is selected as a playback object, wherein each piece of variation data is data for which a variation data identifier can be analyzed from decrypted data, and wherein the data processing unit receives playback path information which is allowed to be played from the server through the communication unit, and selects variation data from the segment region so as to perform content playback, according to the playback path information received from the server.

    摘要翻译： 提供了一种信息处理设备，包括：数据处理单元，其执行内容回放处理; 以及与服务器进行通信的通信单元，其中，所述内容是具有配置有可以分别由不同键解密的多个变体数据的段区域的内容，并且可以根据所述多个重放路径来配置多个重放路径 对于作为回放对象选择的变形数据，其特征在于，每个变形数据是能够从解密数据分析变化数据标识符的数据，并且其中，所述数据处理单元从所述数据处理单元接收从所述播放对象播放的播放路径信息， 服务器，并且根据从服务器接收到的回放路径信息，从段区域选择变化数据，以进行内容回放。

    Information processing device and information processing method
    4.
    发明授权
    Information processing device and information processing method 有权

    公开(公告)号：US10713336B2

    公开(公告)日：2020-07-14

    申请号：US15751996

    申请日：2016-08-19

    申请人： SONY CORPORATION

    发明人： Kenjiro Ueda ,  Tateo Oishi

    IPC分类号： G06F21/10 ,  H04N5/765 ,  G11B20/00 ,  H04L9/08 ,  H04N5/913 ,  G11B20/10

    摘要： A configuration in which usage control that is substantially similar to content usage control in a copy source medium can be performed in a content copy destination is implemented. A data processing unit that performs a copy process of recording data recorded on a first medium on a second medium records encrypted content in the first medium on the second medium, without decrypting the encrypted content. In addition, the data processing unit converts a CPS unit key file recorded on the first medium to generate a converted CPS unit key file and records the converted CPS unit key file on the second medium. Further, the data processing unit acquires an MKB not requiring KCD, which is capable of directly calculating a media key using only a device key, without using key conversion data (KCD) recorded on the first medium, from a server and records the MKB not requiring KCD on the second medium.

    INFORMATION PROCESSING APPARATUS, INFORMATION STORAGE MEDIUM, CONTENT MANAGEMENT SYSTEM, DATA PROCESSING METHOD, AND COMPUTER PROGRAM
    7.
    发明申请
    INFORMATION PROCESSING APPARATUS, INFORMATION STORAGE MEDIUM, CONTENT MANAGEMENT SYSTEM, DATA PROCESSING METHOD, AND COMPUTER PROGRAM 有权
    信息处理设备，信息存储介质，内容管理系统，数据处理方法和计算机程序

    公开(公告)号：US20140115342A1

    公开(公告)日：2014-04-24

    申请号：US14137227

    申请日：2013-12-20

    申请人： Sony Corporation

    发明人： Kenjiro Ueda ,  Tateo Oishi ,  Yoshitomo Osawa ,  Katsumi Muramatsu ,  Motoki Kato ,  Yoshikazu Takashima

    IPC分类号： G06F21/50

    CPC分类号： G06F21/50 ,  G11B20/00086 ,  G11B20/00166 ,  G11B20/0021 ,  G11B20/00246 ,  G11B20/00695 ,  G11B20/10 ,  G11B27/034 ,  H04L9/3236 ,  H04L2209/60

    摘要： A configuration for achieving efficient content verification processing based on hash values is provided. Hash values of hash units set as segmented data of a content stored on an information storage medium are recorded in a content hash table and are stored on the information storage medium together with the content. An information processing apparatus for executing content playback executes hash-value comparison processing based on one or more randomly selected hash values. Regardless of the data amount of content, the configuration can perform hash-value determination and comparison processing based on hash units having a small amount of data, so that user equipment for executing content playback can perform efficient content verification.

    摘要翻译： 提供了一种用于实现基于哈希值的有效内容验证处理的配置。 设置为存储在信息存储介质上的内容的分段数据的哈希单元的散列值被记录在内容散列表中，并与内容一起存储在信息存储介质上。 用于执行内容再现的信息处理装置基于一个或多个随机选择的散列值执行散列值比较处理。 不管内容的数据量如何，配置可以基于具有少量数据的哈希单元执行哈希值确定和比较处理，从而用于执行内容回放的用户设备可以执行有效的内容验证。