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1. 发明申请

US20120272065A1 Authentication Method, Host Computer and Recording Medium 审中-公开
标题翻译：认证方式，主机和记录介质
公开(公告)号：US20120272065A1
公开(公告)日：2012-10-25
申请号：US13535054
申请日：2012-06-27
申请人： Shinichi Matsukawa , Jun Sato , Keiko Watanabe
发明人： Shinichi Matsukawa , Jun Sato , Keiko Watanabe
IPC分类号： H04L9/32
CPC分类号： H04L9/3263 , H04L9/083 , H04L9/0891 , H04L2209/60
摘要： According to one embodiment, a host computer updates the media key block MKB in a first updatable memory device in the case where the version number of the media key block MKB read from a recording medium is newer than that of the media key block MKB in the first updatable memory device. The host computer generates a medium unique key Kmu based on a media key Km calculated from the media key block MKB read from the recording medium and a media ID read from the recording medium. The host computer executes the authentication and key exchange AKE process with the recording medium based on the medium unique key Kmu.
摘要翻译：根据一个实施例，在从记录介质读取的媒体密钥块MKB的版本号比媒体密钥块MKB中的媒体密钥块MKB更新的情况下，主计算机更新第一可更新存储设备中的媒体密钥块MKB 第一可更新存储器件。主计算机基于从从记录介质读取的媒体密钥块MKB计算的媒体密钥Km和从记录介质读取的媒体ID生成媒体唯一密钥Kmu。主计算机基于媒体唯一密钥Kmu与记录介质执行认证和密钥交换AKE处理。

2. 发明申请

US20090208003A1 Authentication Method, Host Computer and Recording Medium 审中-公开
标题翻译：认证方式，主机和记录介质
公开(公告)号：US20090208003A1
公开(公告)日：2009-08-20
申请号：US12368889
申请日：2009-02-10
申请人： Shinichi Matsukawa , Jun Sato , Keiko Watanabe
发明人： Shinichi Matsukawa , Jun Sato , Keiko Watanabe
IPC分类号： H04L9/06
CPC分类号： H04L9/3263 , H04L9/083 , H04L9/0891 , H04L2209/60
摘要： According to one embodiment, a host computer updates the media key block MKB in a first updatable memory device in the case where the version number of the media key block MKB read from a recording medium is newer than that of the media key block MKB in the first updatable memory device. The host computer generates a medium unique key Kmu based on a media key Km calculated from the media key block MKB read from the recording medium and a media ID read from the recording medium. The host computer executes the authentication and key exchange AKE process with the recording medium based on the medium unique key Kmu.
摘要翻译：根据一个实施例，在从记录介质读取的媒体密钥块MKB的版本号比媒体密钥块MKB中的媒体密钥块MKB更新的情况下，主计算机更新第一可更新存储设备中的媒体密钥块MKB 第一可更新存储器件。主计算机基于从从记录介质读取的媒体密钥块MKB计算的媒体密钥Km和从记录介质读取的媒体ID生成媒体唯一密钥Kmu。主计算机基于媒体唯一密钥Kmu与记录介质执行认证和密钥交换AKE处理。

3. 发明授权

US08578177B2 Recording device, and content-data playback system 失效
标题翻译：录音设备和内容数据播放系统
公开(公告)号：US08578177B2
公开(公告)日：2013-11-05
申请号：US12717458
申请日：2010-03-04
申请人： Shinichi Matsukawa , Taku Kato , Akihiro Kasahara , Hiroshi Suu , Atsushi Kondo , Jun Sato , Akira Miura , Hiroyuki Sakamoto
发明人： Shinichi Matsukawa , Taku Kato , Akihiro Kasahara , Hiroshi Suu , Atsushi Kondo , Jun Sato , Akira Miura , Hiroyuki Sakamoto
IPC分类号： G06F12/14
CPC分类号： G06F21/10 , G06F21/72 , G06F21/78 , G06F21/85 , G06F2221/0704 , G06F2221/0706 , G06F2221/0711 , G06F2221/2107 , G11B20/00086 , G11B20/00115 , G11B20/0021 , G11B20/00246 , G11B20/00362 , G11B20/00492 , G11B20/00862 , G11B2220/17 , G11B2220/61 , H04L9/0819
摘要： A recording device configured to store content data in an encrypted manner, the recording device comprises a memory unit which stores various data, and a controller which controls the memory unit. The controller possesses a controller key and unique identification information, and is configured to generate a controller-unique key unique for each controller in accordance with the controller key and the identification information. The memory unit stores an MKB generated by encrypting a medium key with a device key set that is a collection of a plurality of device keys, an encrypted device key set generated by encrypting the device key set with the controller-unique key, and a device-key-set index which uniquely identifies the device key set. The controller comprises a decryption unit which obtains a device key set by decrypting the encrypted device key set with the controller-unique key, an ID generating unit which generates a medium ID from the identification information and the device-key-set index, and an authentication unit which executes an authentication process with an exterior in accordance with the device key set, the medium ID and the MKB.
摘要翻译：一种记录装置，被配置为以加密的方式存储内容数据，记录装置包括存储各种数据的存储单元和控制存储单元的控制器。控制器具有控制器密钥和唯一的识别信息，并且被配置为根据控制器密钥和识别信息生成每个控制器唯一的控制器唯一密钥。存储单元存储通过使用作为多个设备密钥的集合的设备密钥集合来加密中等密钥生成的MKB，通过用控制器唯一密钥加密设备密钥来生成的加密设备密钥集，以及设备 - 唯一标识设备密钥集的密钥设置索引。控制器包括解密单元，其通过利用控制器唯一密钥解密加密设备密钥集来获得设备密钥集，ID生成单元从识别信息和设备密钥集索引生成介质ID，以及认证单元，其根据设备密钥组，介质ID和MKB执行与外部的认证处理。

4. 发明申请

US20100268953A1 RECORDING DEVICE, AND CONTENT-DATA PLAYBACK SYSTEM 失效
标题翻译：记录设备和内容数据回放系统
公开(公告)号：US20100268953A1
公开(公告)日：2010-10-21
申请号：US12717458
申请日：2010-03-04
申请人： Shinichi Matsukawa , Taku Kato , Akihiro Kasahara , Hiroshi Suu , Atsushi Kondo , Jun Sato , Akira Miura , Hiroyuki Sakamoto
发明人： Shinichi Matsukawa , Taku Kato , Akihiro Kasahara , Hiroshi Suu , Atsushi Kondo , Jun Sato , Akira Miura , Hiroyuki Sakamoto
IPC分类号： H04L9/32 , H04L9/14 , H04L9/08
CPC分类号： G06F21/10 , G06F21/72 , G06F21/78 , G06F21/85 , G06F2221/0704 , G06F2221/0706 , G06F2221/0711 , G06F2221/2107 , G11B20/00086 , G11B20/00115 , G11B20/0021 , G11B20/00246 , G11B20/00362 , G11B20/00492 , G11B20/00862 , G11B2220/17 , G11B2220/61 , H04L9/0819
摘要： A recording device configured to store content data in an encrypted manner, the recording device comprises a memory unit which stores various data, and a controller which controls the memory unit. The controller possesses a controller key and unique identification information, and is configured to generate a controller-unique key unique for each controller in accordance with the controller key and the identification information. The memory unit stores an MKB generated by encrypting a medium key with a device key set that is a collection of a plurality of device keys, an encrypted device key set generated by encrypting the device key set with the controller-unique key, and a device-key-set index which uniquely identifies the device key set. The controller comprises a decryption unit which obtains a device key set by decrypting the encrypted device key set with the controller-unique key, an ID generating unit which generates a medium ID from the identification information and the device-key-set index, and an authentication unit which executes an authentication process with an exterior in accordance with the device key set, the medium ID and the MKB.
摘要翻译：一种记录装置，被配置为以加密的方式存储内容数据，记录装置包括存储各种数据的存储单元和控制存储单元的控制器。控制器具有控制器密钥和唯一的识别信息，并且被配置为根据控制器密钥和识别信息生成每个控制器唯一的控制器唯一密钥。存储单元存储通过使用作为多个设备密钥的集合的设备密钥集合来加密中等密钥生成的MKB，通过用控制器唯一密钥加密设备密钥来生成的加密设备密钥集，以及设备 - 唯一标识设备密钥集的密钥设置索引。控制器包括解密单元，其通过利用控制器唯一密钥解密加密设备密钥集来获得设备密钥集，从生成识别信息和设备密钥集索引生成介质ID的ID生成单元，以及认证单元，其根据设备密钥组，介质ID和MKB执行与外部的认证处理。

5. 发明授权

US08312294B2 Information processing apparatus, authentication method, and storage medium 有权
标题翻译：信息处理装置，认证方法和存储介质
公开(公告)号：US08312294B2
公开(公告)日：2012-11-13
申请号：US12504563
申请日：2009-07-16
申请人： Jun Sato , Shinichi Matsukawa , Taku Kato
发明人： Jun Sato , Shinichi Matsukawa , Taku Kato
IPC分类号： G06F12/14
CPC分类号： G06F21/606 , G06F21/10 , H04L9/0844 , H04L9/3273 , H04L2209/603
摘要： According to one embodiment, a storage medium comprises an encrypted content, key management information which is updated whenever necessary and includes a media key block including encrypted media keys obtained by encrypting a media key which is a base of an authentication key used for mutual authentication with another apparatus by using different device keys, and first and second application keys which encrypt the title keys for each application of the content and are alternately updated and encrypted when the key management information is updated.
摘要翻译：根据一个实施例，存储介质包括加密内容，密钥管理信息，其在必要时被更新，并且包括媒体密钥块，该媒体密钥块包括通过加密作为用于相互认证的认证密钥的基础的媒体密钥而获得的加密媒体密钥，通过使用不同的设备密钥的另一设备，以及第一和第二应用密钥，其对每个内容的应用加密标题密钥，并且在更新密钥管理信息时交替更新和加密。

6. 发明申请

US20090232314A1 APPARATUS, METHOD, AND COMPUTER PROGRAM PRODUCT FOR PROCESSING INFORMATION 失效
标题翻译：用于处理信息的装置，方法和计算机程序产品
公开(公告)号：US20090232314A1
公开(公告)日：2009-09-17
申请号：US12401703
申请日：2009-03-11
申请人： Taku Kato , Jun Sato , Shinichi Matsukawa
发明人： Taku Kato , Jun Sato , Shinichi Matsukawa
IPC分类号： H04L9/08 , H04L9/06
CPC分类号： G06F12/1408 , G11B20/00086 , G11B20/00115 , G11B20/0021 , G11B20/00246 , G11B20/00362 , G11B2220/17
摘要： An information processing apparatus performs mutual authentication with another information processing apparatus storing key management information and at least one of apparatus secret keys, the key management information containing encrypted secret keys each being a secret key encrypted with a different one of the apparatus secret keys respectively assigned to information processing apparatuses. The apparatus transmits, to the other apparatus, designation information specifying one of the encrypted secret keys decryptable with the apparatus secret key, out of the encrypted secret keys contained in the key management information usable by the apparatus, receives the encrypted secret key specified by the designation information out of the encrypted secret keys contained in the key management information stored in the other apparatus from the other apparatus, obtains the secret key by decrypting the encrypted secret key with the apparatus secret key, and performs authentication with the other apparatus based on the secret key.
摘要翻译：信息处理装置对存储密钥管理信息的另一个信息处理装置和设备秘密密钥中的至少一个进行相互认证，密钥管理信息包含加密的秘密密钥，每个密钥管理信息是分别被分配的装置密钥加密的秘密密钥到信息处理设备。该装置向装置发送由装置可使用的密钥管理信息中包含的加密秘密密钥中指定可用装置秘密密钥解密的加密密钥之一的指定信息，接收由该设备秘密密钥指定的加密秘密密钥从另一装置中存储在另一装置中的密钥管理信息中包含的加密秘密密钥中的指定信息通过利用装置秘密密钥对加密的秘密密钥进行解密来获得秘密密钥，并且基于其他装置进行认证密钥。

7. 发明申请

US20100017626A1 INFORMATION PROCESSING APPARATUS, AUTHENTICATION METHOD, AND STORAGE MEDIUM 有权
标题翻译：信息处理设备，认证方法和存储介质
公开(公告)号：US20100017626A1
公开(公告)日：2010-01-21
申请号：US12504563
申请日：2009-07-16
申请人： Jun Sato , Shinichi Matsukawa , Taku Kato
发明人： Jun Sato , Shinichi Matsukawa , Taku Kato
IPC分类号： G06F12/14 , H04L9/00
CPC分类号： G06F21/606 , G06F21/10 , H04L9/0844 , H04L9/3273 , H04L2209/603
摘要： According to one embodiment, a storage medium comprises an encrypted content, key management information which is updated whenever necessary and includes a media key block including encrypted media keys obtained by encrypting a media key which is a base of an authentication key used for mutual authentication with another apparatus by using different device keys, and first and second application keys which encrypt the title keys for each application of the content and are alternately updated and encrypted when the key management information is updated.
摘要翻译：根据一个实施例，存储介质包括加密内容，密钥管理信息，其在必要时被更新，并且包括媒体密钥块，该媒体密钥块包括通过加密作为用于相互认证的认证密钥的基础的媒体密钥而获得的加密媒体密钥，通过使用不同的设备密钥的另一设备，以及第一和第二应用密钥，其对每个内容的应用加密标题密钥，并且在更新密钥管理信息时交替更新和加密。

8. 发明授权

US08600064B2 Apparatus, method, and computer program product for processing information 失效
标题翻译：用于处理信息的装置，方法和计算机程序产品
公开(公告)号：US08600064B2
公开(公告)日：2013-12-03
申请号：US12401703
申请日：2009-03-11
申请人： Taku Kato , Jun Sato , Shinichi Matsukawa
发明人： Taku Kato , Jun Sato , Shinichi Matsukawa
IPC分类号： H04L9/08
CPC分类号： G06F12/1408 , G11B20/00086 , G11B20/00115 , G11B20/0021 , G11B20/00246 , G11B20/00362 , G11B2220/17
摘要： An information processing apparatus transmits, to another information processing apparatus, designation information that is used to specify at least one of an encrypted secret keys that can be decrypted using a first apparatus secret key, out of an encrypted secret key set contained in a first key management information, receives from the another information processing apparatus, the encrypted secret key specified by the designation information out of the encrypted secret key set contained in a second key management information, obtains a second secret key contained in the second key management information in a secret manner by decrypting the encrypted secret key received by the receiving unit using the first apparatus secret key, and performs the authentication process with the another information processing apparatus using the second secret key.
摘要翻译：信息处理装置将包含在第一密钥中的加密秘密密钥集中的用于指定可以使用第一装置秘密密钥解密的加密秘密密钥中的至少一个的指定信息发送到另一个信息处理装置管理信息，从另一信息处理装置接收由包含在第二密钥管理信息中的加密秘密密钥集合中的指定信息指定的加密秘密密钥，以秘密的形式获得包含在第二密钥管理信息中的第二密钥通过使用第一设备秘密密钥解密由接收单元接收的加密秘密密钥，并且使用第二密钥对另一信息处理设备执行认证处理。

9. 发明申请

US20150074406A1 MEMORY DEVICE AND MEMORY SYSTEM 审中-公开
标题翻译：存储器件和存储器系统
公开(公告)号：US20150074406A1
公开(公告)日：2015-03-12
申请号：US13520051
申请日：2012-05-25
申请人： Yuji Nagai , Taku Kato , Tatsuyuki Matsushita , Shinichi Matsukawa , Yasufumi Tsumagari
发明人： Yuji Nagai , Taku Kato , Tatsuyuki Matsushita , Shinichi Matsukawa , Yasufumi Tsumagari
IPC分类号： G06F21/44 , H04L9/08 , H04L9/32
CPC分类号： G06F21/44 , G06F2221/2129 , H04L9/0869 , H04L9/0877 , H04L9/32 , H04L9/3234
摘要： For authentication of the host device, the memory device is configured to output the encrypted second key information (FKB) to the host device, output the encrypted identification information (E-SecretID) to the host device, generate third third key information (Hkey) using information (HC) received from the host device and the first key information, generate a session key (Skey) using a random number (RN) received from the host device, and the third key information, generate authentication information (Oneway-ID) by performing a one-way conversion process on the identification information, using the session key, and output the authentication information (Oneway-ID) to the host device.
摘要翻译：为了对主机进行认证，存储装置被配置为将加密的第二密钥信息（FKB）输出到主机装置，将加密的识别信息（E-SecretID）输出到主机装置，生成第三密钥信息（Hkey）使用从主机设备接收的信息（HC）和第一密钥信息，使用从主机设备接收的随机数（RN）和第三密钥信息生成会话密钥（Skey），生成认证信息（Oneway-ID）通过使用会话密钥对识别信息进行单向转换处理，并将该认证信息（Oneway-ID）输出到主机装置。

10. 发明申请

US20130132728A1 DIGITAL SIGNATURE SERVER AND USER TERMINAL 有权
公开(公告)号：US20130132728A1
公开(公告)日：2013-05-23
申请号：US13511193
申请日：2009-11-25
申请人： Hiroshi Suu , Akira Miura , Akihiro Kasahara , Shinichi Matsukawa
发明人： Hiroshi Suu , Akira Miura , Akihiro Kasahara , Shinichi Matsukawa
IPC分类号： H04L9/32
CPC分类号： H04L9/3247 , H04L9/0825 , H04L9/14 , H04L63/0457
摘要： To reduce a load on a user terminal imposed when verifying signature data and at the same time reduce a load on a server, a signature key matrix KM includes a plurality of signature keys Ki-j arranged in a matrix structure of m rows and n columns, and is stored in a signature key matrix database 21. A correspondence relationship between a signature key set CK which is an aggregate of any signature keys selected from the n columns respectively and a user terminal 30 is stored in a correspondence relationship information database 22. A signature data generating unit 24 generates signature data having a matrix structure by encrypting a content digest D generated based on content data C by n number of signature keys included in the signature key matrix KM.

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