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    Information processing device, disc, information processing method, and program
    4.
    发明授权
    Information processing device, disc, information processing method, and program 有权
    信息处理设备，光盘，信息处理方法和程序

    公开(公告)号：US08868904B2

    公开(公告)日：2014-10-21

    申请号：US12747100

    申请日：2009-01-20

    申请人： Kenjiro Ueda ,  Tateo Oishi ,  Katsumi Muramatsu ,  Motoki Kato ,  Yoshiyuki Kobayashi

    发明人： Kenjiro Ueda ,  Tateo Oishi ,  Katsumi Muramatsu ,  Motoki Kato ,  Yoshiyuki Kobayashi

    IPC分类号： H04L9/32 ,  H04L9/08 ,  G11B20/00 ,  G06F21/62

    CPC分类号： G11B20/0021 ,  G06F21/6209 ,  G11B20/00086 ,  G11B20/00427 ,  H04L9/321 ,  H04L9/3268 ,  H04L9/3297 ,  H04L2209/60

    摘要： A configuration is provided wherein usage restrictions of an application are determined in accordance with timestamps. A certificate revocation list (CRL) in which the revocation information of a content owner who is a providing entity of an application program recorded in a disc is recorded is referred to verify whether or not a content owner identifier recorded in an application certificate is included in the CRL, and in the case that the content owner identifier is included in the CRL, comparison between a timestamp stored in a content certificate and a CRL timestamp is executed, and in the case that the content certificate timestamp has date data equal to or later than the CRL timestamp, utilization processing of the application program is prohibited or restricted. According to the present configuration, a configuration is realized wherein an unrevoked application is not subjected to utilization restriction, and only a revoked application is subjected to utilization restriction.

    摘要翻译： 提供了一种配置，其中根据时间戳来确定应用的使用限制。 参照记录作为记录在盘中的应用程序的提供实体的内容所有者的撤销信息的证书吊销列表（CRL）来验证记录在应用证书中的内容所有者标识符是否包含在 CRL，并且在内容所有者标识符被包括在CRL中的情况下，执行存储在内容证书中的时间戳与CRL时间戳之间的比较，并且在内容证书时间戳具有等于或更晚的日期数据的情况下 比CRL时间戳，应用程序的利用处理被禁止或限制。 根据本结构，能够实现对未被使用的应用不进行利用限制的配置，仅对撤销的应用进行利用限制。

    INFORMATION PROCESSING APPARATUS, INFORMATION RECORDING MEDIUM MANUFACTURING APPARATUS, INFORMATION RECORDING MEDIUM, METHOD, AND COMPUTER PROGRAM
    5.
    发明申请
    INFORMATION PROCESSING APPARATUS, INFORMATION RECORDING MEDIUM MANUFACTURING APPARATUS, INFORMATION RECORDING MEDIUM, METHOD, AND COMPUTER PROGRAM 失效
    信息处理设备，信息记录介质制造设备，信息记录介质，方法和计算机程序

    公开(公告)号：US20110317983A1

    公开(公告)日：2011-12-29

    申请号：US13230416

    申请日：2011-09-12

    申请人： Yoshikazu Takashima ,  Kenjiro Ueda ,  Tateo Oishi ,  Katsumi Muramatsu ,  Jun Yonemitsu

    发明人： Yoshikazu Takashima ,  Kenjiro Ueda ,  Tateo Oishi ,  Katsumi Muramatsu ,  Jun Yonemitsu

    IPC分类号： H04N9/80

    CPC分类号： H04N7/167 ,  H04N21/4334 ,  H04N21/4405 ,  H04N21/4627 ,  H04N21/4753 ,  H04N21/63345 ,  H04N21/835 ,  H04N21/8352

    摘要： To provide an apparatus, a recording medium and a method for effectively preventing unauthorized use of a content. A content containing broken data different from correct content member data is recorded on an information recording medium. Furthermore, transform data, as the correct member data, to be substituted for the broken data, and a fix-up table storing setting position information of the content are recorded on the information recording medium. During the content playback process, the transform data is substituted for the content member data in accordance with the fix-up table recorded on the information recording medium. With this arrangement, even if the encryption key corresponding to the encrypted content recorded on the information recording medium is leaked, an apparatus unable to acquire the transform data cannot play back the content. Unauthorized use of the content is thus controlled.

    摘要翻译： 提供一种用于有效防止内容的未授权使用的装置，记录介质和方法。 包含与正确内容成员数据不同的断裂数据的内容被记录在信息记录介质上。 此外，作为正确的成员数据的变换数据被替换为断开的数据，以及存储内容的设置位置信息的修正表被记录在信息记录介质上。 在内容再现处理期间，根据记录在信息记录介质上的固定表来代替内容成员数据。 通过这种安排，即使与记录在信息记录介质上的加密内容相对应的加密密钥泄漏，不能获取变换数据的装置也不能播放该内容。 因此，不正当地使用内容被控制。

    Information processing system and method
    7.
    发明授权
    Information processing system and method 有权
    信息处理系统和方法

    公开(公告)号：US07707410B2

    公开(公告)日：2010-04-27

    申请号：US11342162

    申请日：2006-01-27

    申请人： Ryuji Ishiguro ,  Yoshitomo Osawa ,  Tateo Oishi ,  Tomoyuki Asano ,  Atsushi Mitsuzawa

    发明人： Ryuji Ishiguro ,  Yoshitomo Osawa ,  Tateo Oishi ,  Tomoyuki Asano ,  Atsushi Mitsuzawa

    IPC分类号： H04L29/06

    CPC分类号： G11B20/00086 ,  G06F21/10 ,  G06F2221/0797 ,  G06F2221/2109 ,  G11B20/0021 ,  H04L9/0836 ,  H04L9/0891

    摘要： An enabling key block (EKB) used in an encrypted key distributing tree structure is generated by forming a simplified 2-branch or multi-branch type tree with a terminal node or leaf which is capable of decrypting on the basis of a key corresponding to a node or a leaf of the simplified tree. Further, the EKB includes a tag for indicating a position of an encrypted key in the tree. The tag not only discriminates position but also stores data for judging the presence of encrypted key data within the EKB. As such, a considerable reduction in data quantity is realized, and the decrypting process in a device is also simplified.

    摘要翻译： 在加密的密钥分发树结构中使用的启用密钥块（EKB）通过形成具有终端节点或叶片的简化的2分支或多分支树型树生成，该终端节点或叶片能够基于对应于 节点或简化树的叶。 此外，EKB包括用于指示加密密钥在树中的位置的标签。 该标签不仅识别位置，还存储用于判断EKB内加密密钥数据的存在的数据。 因此，实现了数据量的显着减少，并且设备中的解密处理也被简化。

    Information processing system and method
    8.
    发明授权
    Information processing system and method 失效
    信息处理系统和方法

    公开(公告)号：US07405731B2

    公开(公告)日：2008-07-29

    申请号：US11132664

    申请日：2005-05-19

    申请人： Tomoyuki Asano ,  Yoshitomo Osawa ,  Tateo Oishi ,  Ryuji Ishiguro ,  Ryuta Taki

    发明人： Tomoyuki Asano ,  Yoshitomo Osawa ,  Tateo Oishi ,  Ryuji Ishiguro ,  Ryuta Taki

    IPC分类号： G09G5/00

    CPC分类号： G06F21/10 ,  G06F2221/0755 ,  G06F2221/0771 ,  G06F2221/2107 ,  G11B20/00086 ,  G11B20/0021 ,  H04L9/0822 ,  H04L9/0836 ,  H04L9/0891 ,  H04L2209/60

    摘要： An information processing system and method are disclosed in which information processing is performed in a highly efficient manner using an enabling key block (EKB) on the basis of a tree structure including category subtrees. A key tree is formed so as to include a plurality of subtrees serving as category trees categorized in accordance with categories and managed by category entities. An EKB includes data produced by selecting a path in a tree and encrypting a higher-level key in the selected path using a lower-level key in the selected path. The resultant EKB is provided to a device. Distribution of EKB's is managed on the basis of an EKB type definition list representing the correspondence between an EKB type identifier and one or more identification data identifying one or more category trees that can process an EKB of an EKB type specified by the EKB type identifier.

    摘要翻译： 公开了一种信息处理系统和方法，其中使用基于包括类别子树的树结构的启用密钥块（EKB）以高效的方式执行信息处理。 形成关键树，以便包括用作根据类别分类并由类别实体管理的类别树的多个子树。 EKB包括通过选择树中的路径并使用所选路径中的较低级别的密钥来加密所选路径中的较高级别的密钥而产生的数据。 所得到的EKB被提供给设备。 基于表示EKB类型标识符与识别可以处理由EKB类型标识符指定的EKB类型的EKB的一个或多个类别树的一个或多个标识数据之间的对应关系的EKB类型定义列表来管理EKB的分发。

    Information processing system and method
    10.
    发明授权
    Information processing system and method 有权
    信息处理系统和方法

    公开(公告)号：US07167564B2

    公开(公告)日：2007-01-23

    申请号：US10204775

    申请日：2001-12-21

    申请人： Tomoyuki Asano ,  Yoshitomo Osawa ,  Tateo Oishi ,  Ryuji Ishiguro ,  Ryuta Taki

    发明人： Tomoyuki Asano ,  Yoshitomo Osawa ,  Tateo Oishi ,  Ryuji Ishiguro ,  Ryuta Taki

    IPC分类号： H04L9/16

    CPC分类号： H04L63/0428 ,  G06F21/10 ,  G06F2221/0753 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00855 ,  H04L9/0836 ,  H04L9/0891 ,  H04L63/062 ,  H04L63/0869 ,  H04L63/104 ,  H04L2209/60

    摘要： An information processing system and method are disclosed in which information processing is performed in a highly efficient manner using an enabling key block (EKB) on the basis of a tree structure including category subtrees. A key tree is produced so as to include a plurality of subtrees that are grouped in accordance with categories and managed by category entities. An EKB is produced so as to include data produced by selecting a path in the key tree and encrypting an upper-level key in the selected path using a lower-level key in the selected path. The resultant EKB is provided to a device. If a change occurs in state of a category tree capable of processing an EKB identified in the EKB type definition list, a notification of the change in state is sent to an entity that uses the EKB thereby making it possible for an EKB requester to perform processing in accordance with a newest EKB.

    摘要翻译： 公开了一种信息处理系统和方法，其中使用基于包括类别子树的树结构的启用密钥块（EKB）以高效的方式执行信息处理。 生成密钥树，以便包括根据类别分组并由类别实体管理的多个子树。 产生EKB，以包括通过选择密钥树中的路径并使用所选路径中的下级密钥加密所选路径中的上级密钥而产生的数据。 所得到的EKB被提供给设备。 如果在能够处理在EKB类型定义列表中识别的EKB的类别树的状态发生变化，则向使用EKB的实体发送状态改变的通知，从而使得EKB请求者能够执行处理 按照最新的EKB。