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1. 发明申请

US20050005148A1 Contents processing system 有权
标题翻译：内容处理系统
公开(公告)号：US20050005148A1
公开(公告)日：2005-01-06
申请号：US10897684
申请日：2004-07-23
申请人： Yoshihito Ishibashi , Tateo Oishi , Tomoyuki Asano , Yoshitomo Osawa
发明人： Yoshihito Ishibashi , Tateo Oishi , Tomoyuki Asano , Yoshitomo Osawa
IPC分类号： G06F1/00 , G06F21/10 , G06F21/72 , G06Q30/00 , G06Q30/06 , H04L9/08 , H04L9/32
CPC分类号： G06F21/72 , G06F21/10 , G06F2211/008 , G06F2221/0737 , G06F2221/0753 , G06F2221/2135 , G06Q30/06 , G11B20/00724 , H04L9/0822 , H04L9/083 , H04L2209/60
摘要： A first information processing unit 100 stores identification information into a storage module 152, stores an encrypted contents signal into a mass storage unit 180, and supplies the encrypted contents signal and identification information to a second information processing unit 200 through a communication section 110. In a receiving unit 170 of the first information processing unit 100, log information generated by a purchase processing module 153 is stored into the storage module 152 every time the contents key is decoded, and the log information is transmitted at predetermined timing to a key management center 30 through the transmission section 110. The second information processing unit 200 receives the encrypted contents signal and the identification information through a communication section 210, and causes a contents processing section 260 to decode the encrypted contents signal and to append the identification information thereto.
摘要翻译：第一信息处理单元100将识别信息存储到存储模块152中，将加密内容信号存储到大容量存储单元180中，并通过通信部110将加密的内容信号和识别信息提供给第二信息处理单元200.在第一信息处理单元100的接收单元170，每当内容密钥被解码时，由购买处理模块153产生的日志信息被存储到存储模块152中，并且将日志信息以预定的定时发送到密钥管理中心第二信息处理单元200通过通信部件210接收加密的内容信号和识别信息，并使内容处理部分260对加密的内容信号进行解码并附加识别信息。

2. 发明授权

US06728379B1 Information processor and information processing method 失效
标题翻译：信息处理器和信息处理方法
公开(公告)号：US06728379B1
公开(公告)日：2004-04-27
申请号：US09340900
申请日：1999-06-28
申请人： Yoshihito Ishibashi , Yoshitomo Osawa , Tateo Oishi , Tomoyuki Asano
发明人： Yoshihito Ishibashi , Yoshitomo Osawa , Tateo Oishi , Tomoyuki Asano
IPC分类号： H04N7167
CPC分类号： H04L63/0428 , H04L63/062 , H04L2463/101 , H04N7/1675 , H04N21/2347 , H04N21/26606 , H04N21/4405 , H04N21/4623 , H04N21/4627 , H04N21/63345 , H04N21/8355
摘要： An information processor receives at a communication section thereof an encrypted content decryption key generated by encrypting, by a distribution encryption key, a content decryption key for decryption of a content encrypted by a content encryption key. The received encrypted content decryption key is sent to a content key decryption section where it is decrypted. The decrypted content decryption key and copy control code are sent to a content key encryption section where they are encrypted by an encryption key which can be decrypted at an external information processor, namely, a session key, to send an encrypted content decryption key with a copy control code to the external information processor via a communication section.
摘要翻译：信息处理器在其通信部分处接收通过分发加密密钥对由内容加密密钥加密的内容进行解密的内容解密密钥进行加密而生成的加密内容解密密钥。接收到的加密内容解密密钥被发送到解密密钥的内容密钥解密部分。解密的内容解密密钥和复制控制码被发送到内容密钥加密部分，在那里它们被加密密钥加密，该加密密钥可以在外部信息处理器（即会话密钥）处被解密，以发送加密的内容解密密钥通过通信部将复制控制代码复制到外部信息处理器。

3. 发明授权

US06834346B1 Content processing system 失效
标题翻译：内容处理系统
公开(公告)号：US06834346B1
公开(公告)日：2004-12-21
申请号：US09509583
申请日：2000-03-28
申请人： Yoshihito Ishibashi , Tateo Oishi , Tomoyuki Asano , Yoshitomo Osawa
发明人： Yoshihito Ishibashi , Tateo Oishi , Tomoyuki Asano , Yoshitomo Osawa
IPC分类号： H04L916
CPC分类号： G06F21/72 , G06F21/10 , G06F2211/008 , G06F2221/0737 , G06F2221/0753 , G06F2221/2135 , G06Q30/06 , G11B20/00724 , H04L9/0822 , H04L9/083 , H04L2209/60
摘要： A first information processing unit 100 stores identification information into a storage module 152, stores an encrypted contents signal into a mass storage unit 180, and supplies the encrypted contents signal and identification information to a second information processing unit 200 through a communication section 110. In a receiving unit 170 of the first information processing unit 100, log information generated by a purchase processing module 153 is stored into the storage module 152 every time the contents key is decoded, and the log information is transmitted at predetermined timing to a key management center 30 through the transmission section 110. The second information processing unit 200 receives the encrypted contents signal and the identification information through a communication section 210, and causes a contents processing section 260 to decode the encrypted contents signal and to append the identification information thereto.
摘要翻译：第一信息处理单元100将识别信息存储到存储模块152中，将加密内容信号存储到大容量存储单元180中，并通过通信部110将加密的内容信号和识别信息提供给第二信息处理单元200.在第一信息处理单元100的接收单元170，每当内容密钥被解码时，由购买处理模块153产生的日志信息被存储到存储模块152中，并且将日志信息以预定的定时发送到密钥管理中心第二信息处理单元200通过通信部件210接收加密的内容信号和识别信息，并使内容处理部分260对加密的内容信号进行解码并附加识别信息。

4. 发明授权

US07310731B2 Contents processing system 有权
标题翻译：内容处理系统
公开(公告)号：US07310731B2
公开(公告)日：2007-12-18
申请号：US10897684
申请日：2004-07-23
申请人： Yoshihito Ishibashi , Tateo Oishi , Tomoyuki Asano , Yoshitomo Osawa
发明人： Yoshihito Ishibashi , Tateo Oishi , Tomoyuki Asano , Yoshitomo Osawa
IPC分类号： H04K1/00 , H04L9/00 , G06Q30/00
CPC分类号： G06F21/72 , G06F21/10 , G06F2211/008 , G06F2221/0737 , G06F2221/0753 , G06F2221/2135 , G06Q30/06 , G11B20/00724 , H04L9/0822 , H04L9/083 , H04L2209/60
摘要： A first information processing unit stores identification information into a storage module, stores an encrypted contents signal into a mass storage unit, and supplies the encrypted contents signal and identification information to a second information processing unit through a communication section. In a receiving unit of the first information processing unit, log information generated by a purchase processing module is stored into the storage module every time the contents key is decoded, and the log information is transmitted at predetermined timing to a key management center through the transmission section. The second information processing unit receives the encrypted contents signal and the identification information through a communication section, and causes a contents processing section to decode the encrypted contents signal and to append the identification information thereto.
摘要翻译：第一信息处理单元将识别信息存储到存储模块中，将加密的内容信号存储在大容量存储单元中，并且通过通信部分将加密的内容信号和识别信息提供给第二信息处理单元。在第一信息处理单元的接收单元中，每当内容密钥被解码时，由购买处理模块生成的日志信息被存储到存储模块中，并且日志信息在预定定时通过传输发送到密钥管理中心部分。第二信息处理单元通过通信部接收加密内容信号和识别信息，使内容处理部对加密内容信号进行解码，并附加识别信息。

5. 发明授权

US07346170B2 Information processing system and method 失效
标题翻译：信息处理系统和方法
公开(公告)号：US07346170B2
公开(公告)日：2008-03-18
申请号：US10204731
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： H04L9/00 , H04K1/00
CPC分类号： H04L9/0822 , G11B20/00086 , G11B20/0021 , G11B20/00855 , H04L9/0836 , H04L9/0891 , H04L63/0428 , H04L63/062 , H04L63/0869 , H04L63/104 , H04L2209/60
摘要： An information processing system and method are disclosed in which information processing is performed using an enabling key block (EKB) in association with a tree structure including category subtrees. A key tree is produced, which include subtrees that are grouped in accordance with categories and are managed by category entities. The EKB includes data produced by selecting a path in the key tree and encrypting a higher-level key in the selected path using a lower-level key in the selected path. The EKB is then provided to a device. A requester, which requests production of the EKB, may produce a root key or may request a key distribution center (KDC) to produce a root key. If the (KDC) produces the EKB, it may also request a category entity to produce a sub-EKB.
摘要翻译：公开了一种信息处理系统和方法，其中使用与包括类别子树的树结构相关联的使能密钥块（EKB）来执行信息处理。生成一个关键树，其中包括根据类别分组并由类别实体管理的子树。 EKB包括通过选择密钥树中的路径并使用所选路径中的较低级密钥加密所选路径中的较高级密钥而产生的数据。然后将EKB提供给设备。要求生产EKB的请求者可以生成根密钥，或者可以请求密钥分发中心（KDC）产生根密钥。如果（KDC）生成EKB，它也可以请求类别实体来生成子EKB。

6. 发明授权

US07346169B2 Information processing device and method 失效
标题翻译：信息处理装置及方法
公开(公告)号：US07346169B2
公开(公告)日：2008-03-18
申请号：US10069176
申请日：2001-06-21
申请人： Tomoyuki Asano , Yoshitomo Osawa , Ryuji Ishiguro , Atsushi Mitsuzawa , Tateo Oishi
发明人： Tomoyuki Asano , Yoshitomo Osawa , Ryuji Ishiguro , Atsushi Mitsuzawa , Tateo Oishi
IPC分类号： H09L9/14
CPC分类号： H04L9/0836 , G06F21/10 , G06F2221/2107 , G11B20/00086 , G11B20/00115 , G11B20/00195 , G11B20/0021 , G11B20/00253 , G11B20/00507 , G11B20/00528 , G11B20/00855 , H04L9/0822 , H04L9/0891 , H04L63/0428 , H04L63/064 , H04L63/12 , H04L2209/60
摘要： An information processing device, information processing method and a recording medium are provided. Storage included in the information processing device is operable to store a node key and a leaf key, the leaf key being unique to the information processing device and the node key being unique to each node of a hierarchical network of nodes having a hierarchical tree structure. A decryption processor performs decryption processing to detect whether an encrypted decryption key for decrypting encrypted data is stored in at least one of on the information processing device or on a recording medium. When the encrypted decryption key is detected, the decryption processor is operable to calculate the decryption key by decrypting the encrypted decryption key. However, when the encrypted decryption key is not detected, the decryption processor is operable to calculate the decryption key by decrypting a key block using one of the one or more node keys stored in the storage and the leaf key stored in the storage. The calculated decryption key may then be encrypted and stored by the decryption processor on at least one of the recording medium or the memory.
摘要翻译：提供信息处理装置，信息处理方法和记录介质。包含在信息处理装置中的存储器可操作以存储节点密钥和叶子密钥，叶信息对于信息处理设备是唯一的，节点密钥对于具有分层树结构的分层网络的每个节点是唯一的。解密处理器执行解密处理，以检测用于解密加密数据的加密解密密钥是否存储在信息处理装置或记录介质中的至少一个中。当检测到加密的解密密钥时，解密处理器可操作以通过解密加密的解密密钥来计算解密密钥。然而，当未检测到加密的解密密钥时，解密处理器可操作以通过使用存储在存储器中的一个或多个节点密钥和存储在存储器中的叶子密钥中的一个来解密密钥块来计算解密密钥。所计算的解密密钥然后可以由解密处理器加密并存储在记录介质或存储器中的至少一个上。

7. 发明申请

US20060159272A1 Information processing system and method 有权
标题翻译：信息处理系统和方法
公开(公告)号：US20060159272A1
公开(公告)日：2006-07-20
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： H04L9/00
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。

8. 发明申请

US20050228809A1 Information processing system and method 失效
标题翻译：信息处理系统和方法
公开(公告)号：US20050228809A1
公开(公告)日：2005-10-13
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： G06F12/14 , G06F12/00 , G06F21/62 , G11B20/00 , H04L9/00 , H04L9/08 , H04N7/167 , G06F17/30
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。

9. 发明授权

US07283633B2 Information recording and/or reproducing method and information recording and/or reproducing device 失效
标题翻译：信息记录和/或再现方法和信息记录和/或再现装置
公开(公告)号：US07283633B2
公开(公告)日：2007-10-16
申请号：US10049434
申请日：2001-06-21
申请人： Tomoyuki Asano , Yoshitomo Osawa , Ryuji Ishiguro , Atsushi Mitsuzawa , Tateo Oishi
发明人： Tomoyuki Asano , Yoshitomo Osawa , Ryuji Ishiguro , Atsushi Mitsuzawa , Tateo Oishi
IPC分类号： H04L9/00
CPC分类号： H04L9/0891 , G06F21/10 , G06F2221/2107 , G11B20/00086 , G11B20/00115 , G11B20/00195 , G11B20/0021 , G11B20/00253 , G11B20/00507 , G11B20/00528 , H04L9/0836 , H04L2209/60
摘要： An information reproducing method and an information reproducing device in which the key renewal block (KRB) of the latest version is selectively used to encrypt the content to store the encrypted contents in a recording medium. A plural number of KRBs of different generations and versions are stored in a recording medium. If the latest KRB is detected, it is stored in a memory unit within the recording and/or reproducing device. A plural number of KRBs having plural different generations or versions are stored on the recording medium. With the present method and device, in storing the content in the recording medium, the latest usable one of the KRB in the memory unit of the reproducing device and plural KRBs on the recording medium is detected to acquire an encrypting key, such as a media key, to execute the content encryption. In this manner, the encrypted content based on a KRB of a newer version can at all times be stored on the recording medium.
摘要翻译：一种信息再现方法和信息再现装置，其中选择性地使用最新版本的密钥更新块（KRB）来加密内容以将加密的内容存储在记录介质中。将不同代和版本的多个KRB存储在记录介质中。如果检测到最新的KRB，则将其存储在记录和/或再现装置内的存储单元中。具有多个不同代数或版本的多个KRB被存储在记录介质上。利用本方法和装置，在将内容存储在记录介质中时，检测再现装置的存储单元中的KRB中的最新可用的一个和记录介质上的多个KRB，以获取诸如媒体之类的加密密钥密钥，执行内容加密。以这种方式，可以始终将基于较新版本的KRB的加密内容存储在记录介质上。

10. 发明申请

US20070098177A1 Information processing system and method 失效
公开(公告)号：US20070098177A1
公开(公告)日：2007-05-03
申请号：US11639711
申请日：2006-12-15
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： H04L9/00
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.

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