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。

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.

公开(公告)号：US20120311319A1

公开(公告)日：2012-12-06

申请号：US13586652

申请日：2012-08-15

申请人： Akihiro KASAHARA ,  Akira MIURA ,  Hiroshi SUU

发明人： Akihiro KASAHARA ,  Akira MIURA ,  Hiroshi SUU

IPC分类号： H04L9/28

CPC分类号： H04L63/0428 ,  H04L9/0822 ,  H04L9/083 ,  H04L9/0897 ,  H04L63/06 ,  H04L2209/60 ,  H04L2463/101

摘要： A handheld device is configured to be connectable to a storage media that holds a unique media identifier and holds a content key data used to decrypt an encrypted content data. A content data delivery system is provided that is configured to be able to deliver various data to the handheld device and to make a content data available to the handheld device. The system includes a member-registration information database that holds member-registration information including a data pair of a handheld-device identifier related to the relevant handheld device and the relevant media identifier. The media identifier held by the storage media is verified with the member-registration information database.

摘要翻译： 手持设备被配置为可连接到保存唯一媒体标识符并保存用于解密加密内容数据的内容密钥数据的存储介质。 提供内容数据传送系统，其被配置为能够将各种数据传送到手持设备并使内容数据可用于手持设备。 该系统包括成员注册信息数据库，其保存包括与相关手持设备相关的手持设备标识符的数据对和相关媒体标识符的成员注册信息。 使用会员注册信息数据库验证由存储介质保存的媒体标识符。

公开(公告)号：US08126150B2

公开(公告)日：2012-02-28

申请号：US11570074

申请日：2005-06-08

申请人： Akihiro Kasahara ,  Akira Miura ,  Hiroshi Suu

发明人： Akihiro Kasahara ,  Akira Miura ,  Hiroshi Suu

IPC分类号： H04L9/08

CPC分类号： G06F21/10 ,  G06F21/78 ,  G06F2221/07 ,  G11B20/00086 ,  G11B20/0084 ,  H04L9/0822 ,  H04L9/083 ,  H04L9/0891 ,  H04L63/061 ,  H04L63/0853 ,  H04L2209/60 ,  H04L2463/062

摘要： Spread of a forged storage medium is prevented suppressing an authentic storage medium's damage and trouble of a owner to the minimum. When there is an update request of user key data, the update history of the user key data concerning the shown above-mentioned medium identifier IDm is referred to. When judged that the update of the user key data concerning the shown medium identifier IDm not being performed within a predetermined period, the update of user key data is performed. The request of a update is refused when judged that the update of the user key data concerning the shown medium identifier IDm being performed within a predetermined period.

摘要翻译： 伪造的存储介质的传播防止真正的存储介质的损坏和所有者的麻烦最小化。 当存在用户密钥数据的更新请求时，参考关于所示的上述介质标识符IDm的用户密钥数据的更新历史。 当在预定时段内判断出关于所显示的媒体标识符IDm的用户密钥数据的更新不被执行时，执行用户密钥数据的更新。 当判断在预定时间内更新关于所示的媒体标识符IDm的用户密钥数据时，更新的请求被拒绝。

公开(公告)号：US20110131470A1

公开(公告)日：2011-06-02

申请号：US12882979

申请日：2010-09-15

申请人： Toru KAMBAYASHI ,  Akihiro KASAHARA ,  Shinichi MATSUKAWA ,  Hiroyuki SAKAMOTO ,  Taku KATO ,  Hiroshi SUKEGAWA ,  Yoshihiko HIROSE ,  Atsushi SHIMBO ,  Koichi FUJISAKI

发明人： Toru KAMBAYASHI ,  Akihiro KASAHARA ,  Shinichi MATSUKAWA ,  Hiroyuki SAKAMOTO ,  Taku KATO ,  Hiroshi SUKEGAWA ,  Yoshihiko HIROSE ,  Atsushi SHIMBO ,  Koichi FUJISAKI

IPC分类号： G06F12/14 ,  H03M13/05 ,  G06F11/10

CPC分类号： G06F12/1466 ,  G06F21/30 ,  G06F21/79 ,  G06F2212/1052 ,  G06F2221/2107 ,  H04L9/08 ,  H04L9/0838 ,  H04L9/0897 ,  H04L2209/34 ,  H04L2463/062

摘要： According to one embodiment, a memory chip, which is connected to a controller that controls reading and writing of data in response to a request from an external device, includes: a memory including a special area that is a predetermined data storage area; a key storage unit that stores therein a second key that corresponds to a first key used by the external device to convert the data; a converting unit that receives, from the controller, data to be written into the special area and generates converted data by converting the data to be written using the second key; and a writing unit that writes the converted data into the special area.

摘要翻译： 根据一个实施例，连接到控制器的存储器芯片，其响应于来自外部设备的请求来控制数据的读取和写入，包括：存储器，包括作为预定数据存储区域的特殊区域; 密钥存储单元，其中存储与由外部设备用于转换数据的第一密钥相对应的第二密钥; 从所述控制器接收要写入所述特殊区域的数据并通过使用所述第二密钥转换要写入的数据来生成转换数据的转换单元; 以及将转换的数据写入特殊区域的写入单元。

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。

公开(公告)号：US20100218026A1

公开(公告)日：2010-08-26

申请号：US12712571

申请日：2010-02-25

申请人： Kiyoshi TOSHIMITSU ,  Hiroshi SUU ,  Shinichi MATSUKAWA ,  Akihiro KASAHARA

发明人： Kiyoshi TOSHIMITSU ,  Hiroshi SUU ,  Shinichi MATSUKAWA ,  Akihiro KASAHARA

IPC分类号： G06F1/12 ,  G06F13/00 ,  G06F1/26 ,  G06F1/32 ,  G06F3/00 ,  H04B7/00

CPC分类号： G06F13/385 ,  Y02D10/14 ,  Y02D10/151

摘要： An interface control device includes a first interface, a second interface, a third interface, an interface controller and a clock supplying unit. The first interface is used to communicate with a first information processing device and obtain a first clock signal from the first information processing device. The second interface is used to communicate using a second clock signal with a second information processing device different from the first information processing device. The third interface is used to communicate with a controller of a data-storage medium. The interface controller performs an interface control for the first, second and third interfaces. Moreover, the clock supplying unit supplies the first clock signal to the third interface while communications through the second interface have not been established.

摘要翻译： 接口控制装置包括第一接口，第二接口，第三接口，接口控制器和时钟提供单元。 第一接口用于与第一信息处理设备进行通信，并从第一信息处理设备获得第一时钟信号。 第二接口用于使用与第一信息处理设备不同的第二信息处理设备的第二时钟信号进行通信。 第三接口用于与数据存储介质的控制器进行通信。 接口控制器执行第一，第二和第三接口的接口控制。 此外，时钟供给单元将第一时钟信号提供给第三接口，同时通过第二接口的通信尚未建立。

公开(公告)号：US20080298580A1

公开(公告)日：2008-12-04

申请号：US12129764

申请日：2008-05-30

申请人： Hiroshi SUU ,  Akira Miura ,  Akihiro Kasahara

发明人： Hiroshi SUU ,  Akira Miura ,  Akihiro Kasahara

IPC分类号： H04L9/18

CPC分类号： H04L63/0428 ,  G06F21/10

摘要： A content delivery server comprises a packet generator operative to generate packetized content data; an encryptor operative to encrypt the packetized content data with content key data to generate encrypted content data and also operative to encrypt the content key data with user key data to generate encrypted content key data; a TS multiplexer operative to multiplex the encrypted content data into a transport stream and add the encrypted content key data to a TS header thereof; and a transmitter operative to transmit the transport stream to a user terminal.

摘要翻译： 内容递送服务器包括：操作来生成分组化内容数据的分组生成器; 加密器，用于使用内容密钥数据加密分组化内容数据以生成加密内容数据，并且还可操作以用用户密钥数据加密内容密钥数据，以生成加密的内容密钥数据; TS复用器，用于将加密的内容数据复用到传输流中，并将加密的内容密钥数据添加到其TS头部; 以及发射机，用于将传输流发送到用户终端。

公开(公告)号：US20080294562A1

公开(公告)日：2008-11-27

申请号：US11571942

申请日：2005-06-24

申请人： Akihiro Kasahara ,  Akira Miura ,  Hiroshi Suu

发明人： Akihiro Kasahara ,  Akira Miura ,  Hiroshi Suu

IPC分类号： H04L9/32

CPC分类号： H04L9/0822 ,  H04L9/0894 ,  H04L2209/60

摘要： The content data is offered not only to specific storage media but also to the storage media of several different types. Various kinds of storage media (SDq, MSq, HDDq, etc.) enabled to acquire data from a license center unit 40 is provided with different type-identifier data IDs. This data is stored in a type identifier database 42. In case of acquisition request of the user key data from the each storage medium, the type identifier data IDs is shown with the medium identifier data IDm.

摘要翻译： 内容数据不仅提供给特定的存储介质，还提供给几种不同类型的存储介质。 能够从许可证中心单元40获取数据的各种存储介质（SDq，MSq，HDDq等）被提供有不同的类型标识符数据ID。 该数据被存储在类型标识符数据库42中。在从每个存储介质获取用户密钥数据的请求的情况下，用介质标识符数据IDm示出类型标识符数据ID。

公开(公告)号：US20080040814A1

公开(公告)日：2008-02-14

申请号：US11572466

申请日：2005-06-22

申请人： Akihiro Kasahara ,  Akira Miura ,  Hiroshi Suu ,  Kazunori Nakano ,  Shigeru Ishida

发明人： Akihiro Kasahara ,  Akira Miura ,  Hiroshi Suu ,  Kazunori Nakano ,  Shigeru Ishida

IPC分类号： G06F21/00

CPC分类号： G06F21/10 ,  G06F2221/0797 ,  G06F2221/2109

摘要： A key memory medium stores a medium identifier, a medium inherent key based on the medium identifier, an encrypted user key of a user key based on the medium inherent key, and an encrypted contents key of a contents key based on the user key. A contents memory medium stores an encrypted contents software of the contents software based on the contents key. A start-up software of the contents software is executed. The medium inherent key is generated using the medium identifier. The user key is derived from the encrypted user key using the medium inherent key. The contents key is derived from the encrypted contents key using the user key. The contents software is derived from the encrypted contents using the contents key.

摘要翻译： 密钥存储介质基于介质标识符存储介质标识符，介质固有密钥，基于介质固有密钥的用户密钥的加密用户密钥和基于用户密钥的内容密​​钥的加密内容密钥。 内容存储介质基于内容密钥存储内容软件的加密内容软件。 执行内容软件的启动软件。 介质固有密钥使用介质标识符生成。 用户密钥是使用中等固有密钥从加密的用户密钥导出的。 内容密钥是使用用户密钥从加密的内容密钥导出的。 内容软件是使用内容密钥从加密内容导出的。