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公开(公告)号：US20080232596A1
公开(公告)日：2008-09-25
申请号：US12052218
申请日：2008-03-20
申请人： Shinichi MATSUKAWA , Norikazu Hosaka , Masanori Noguchi , Kazuhiro Kaiya , Naoto Akimoto , Akihiro Kutsuzawa , Masahiro Taguchi
发明人： Shinichi MATSUKAWA , Norikazu Hosaka , Masanori Noguchi , Kazuhiro Kaiya , Naoto Akimoto , Akihiro Kutsuzawa , Masahiro Taguchi
CPC分类号： H04L9/0891 , H04L9/085 , H04L2209/60
摘要： A data processing apparatus capable of updating and writing a plurality of distributed information items generated based on to-be-held secret information with respect to a data storage device in which access is not limited includes a secret distribution processing portion which generates a plurality of distributed information items updated this time according to secret information to be held this time based on a threshold value secret distribution method, and a distributed information management portion which selects recording positions of distributed information items updated this time to leave behind distributed information items of a number less than a threshold value among a plurality of distributed information items updated last time with respect to a plurality of distributed information items updated and stored in the data storage device and writes distributed information items updated this time to the data storage device based on the selected recording positions.
摘要翻译： 一种数据处理装置，其能够更新和写入相对于其中不限制访问的数据存储装置的基于被保存的秘密信息生成的多个分布式信息项包括：秘密分发处理部分，其生成多个分布式 此次根据秘密信息根据阈值秘密分发方法保存的信息项目，以及分配信息管理部分，其选择本次更新的分发信息项目的记录位置，以留下数量少的分布式信息项目 相对于更新并存储在数据存储装置中的多个分布式信息项目，上次更新的多个分散信息项中的阈值比基于选择的记录位置写入数据存储装置的分发信息项目更新 。
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公开(公告)号：US20090222929A1
公开(公告)日：2009-09-03
申请号：US12393757
申请日：2009-02-26
申请人： Masanori NOGUCHI , Kazuhiro KAIYA , Kohji KAWAKAMI , Shinichi MATSUKAWA , Norikazu HOSAKA , Akihiro KASAHARA , Akira MIURA , Shigeru MIYASHITA
发明人： Masanori NOGUCHI , Kazuhiro KAIYA , Kohji KAWAKAMI , Shinichi MATSUKAWA , Norikazu HOSAKA , Akihiro KASAHARA , Akira MIURA , Shigeru MIYASHITA
CPC分类号： G06F21/10 , G06F11/1458 , G06F11/1469 , G06F21/6272 , G06F2221/2143 , G06F2221/2151 , H04L9/0822 , H04L9/0833 , H04L2209/60
摘要： A recording device which backs up a content α in a recording medium and a recording device which restores the content are registered in a server so as to belong to the same domain group. When the recording device tries to restore the content, the restore is permitted only when both the recording devices belong to the same domain group. When there is a refresh request of the domain group, the domain group is invalidated only when a refresh period has passed. When a refresh number recorded in the recording device is less than or equal to the refresh number recorded in the recording device, the recording device backs up and locally merges the content recorded in the recording device into the recording medium.
摘要翻译： 将备份记录介质中的内容α的记录装置和恢复内容的记录装置登记在服务器中以属于同一域组。 当记录设备尝试恢复内容时，只有当两个记录设备属于同一个域组时才允许恢复。 当域组有刷新请求时，仅当刷新时间段过去时，域组才会失效。 当记录在记录装置中的刷新号码小于或等于记录装置中记录的刷新次数时，记录装置备份并将记录在记录装置中的内容局部地合并到记录介质中。
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公开(公告)号：US20070277045A1
公开(公告)日：2007-11-29
申请号：US11753144
申请日：2007-05-24
CPC分类号： G06F21/64
摘要： A data processing apparatus for managing an information file to be utilized when contents are used is provided. The data processing system includes an update information file creator for creating an update information file on the basis of an information file including multiple kinds of data stored in a predetermined file storage area to be stored in the predetermined file storage area, a first digest calculator for calculating a digest value from the update information file created by the update information file creator, a digest updater for updating a digest value stored in a predetermined digest value storage area to the digest value calculated by the first digest calculator, a file eraser for erasing the information file used to create the update information file, and a first file setter for setting the update information file as an information file.
摘要翻译： 提供一种用于在使用内容时管理要使用的信息文件的数据处理装置。 数据处理系统包括：更新信息文件创建器，用于基于存储在预定文件存储区域中存储的多种数据的信息文件来创建更新信息文件以存储在预定文件存储区域中;第一摘要计算器， 从由更新信息文件创建器创建的更新信息文件计算摘要值，将存储在预定摘要值存储区域中的摘要值更新为由第一摘要计算器计算的摘要值的摘要更新器，用于擦除 用于创建更新信息文件的信息文件，以及用于将更新信息文件设置为信息文件的第一文件设置器。
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4.发明申请公开(公告)号：US20090022318A1
公开(公告)日：2009-01-22
申请号：US12175014
申请日：2008-07-17
申请人： Akihiro KASAHARA , Shinichi MATSUKAWA , Hiroshi SUU , Akira MIURA
发明人： Akihiro KASAHARA , Shinichi MATSUKAWA , Hiroshi SUU , Akira MIURA
IPC分类号： H04L9/06
CPC分类号： H04L9/0891 , H04L9/0822 , H04L2209/60
摘要： A content distribution terminal includes a user key data generation unit generating new user key data representing a new version of the user key data; a user key update unit capturing, from the recordable medium, already-recorded user key data that has already been recorded on the recordable medium, and ordering the user key data generation unit to generate the new user key data when a predetermined situation is identified in the already-recorded user key data to execute an update procedure for the user key data; an erase control unit erasing, when a predetermined situation is identified in the already-recorded user key data, the first encrypted content key data that is encrypted with the already-recorded user key data and stored in the recordable medium; an encryption/decryption unit decrypting, with terminal-unique key, second encrypted content key data resulting from encryption of the content key data with different terminal-unique keys for different terminals, encrypting again content key data resulting from decryption of the second encrypted content key data with the new user key data to generate the first encrypted content key data, and encrypting the content data with the content key data to generate the encrypted content data; a write control unit writing the data to the recordable medium.
摘要翻译： 内容分发终端包括生成表示新版本的用户密钥数据的新用户密钥数据的用户密钥数据生成单元; 用户密钥更新单元从可记录介质捕获已经记录在可记录介质上的已经记录的用户密钥数据，并且当识别出预定情况时，命令用户密钥数据生成单元生成新的用户密钥数据 已经记录的用户密钥数据，用于执行用户密钥数据的更新过程; 擦除控制单元，当在已经记录的用户密钥数据中识别出预定情况时，擦除已经记录的用户密钥数据加密并存储在可记录介质中的第一加密内容密钥数据; 加密/解密单元利用终端唯一密钥对不同终端的不同终端唯一密钥对内容密钥数据的加密产生的第二加密内容密钥数据进行解密，再次加密由第二加密内容密钥的解密产生的内容密钥数据 数据与新的用户密钥数据一起生成第一加密内容密钥数据，并且用内容密钥数据加密内容数据以生成加密的内容数据; 写入控制单元将数据写入可记录介质。
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公开(公告)号：US20140013050A1
公开(公告)日：2014-01-09
申请号：US13557637
申请日：2012-07-25
IPC分类号： G06F12/00
CPC分类号： G06F12/00 , G06F3/0607 , G06F3/0632 , G06F3/0679 , G06F13/16 , G06F2212/2022
摘要： According to one embodiment, a nonvolatile semiconductor memory device, a controller, an extended function section, and an extension register. The controller controls the nonvolatile semiconductor memory device. The extended function section is controlled by the controller. The extension register which is provided with a certain block length capable of defining an extended function of the extended function section. The controller processes a first command to write header data of a command to operate the extended function section to the extended function section through the extension register, and a second command to read header data of a response from the extended function section through the extension register.
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公开(公告)号：US20130117633A1
公开(公告)日：2013-05-09
申请号：US13729774
申请日：2012-12-28
IPC分类号： G06F11/10
CPC分类号： G06F11/10 , G06F21/10 , G11B20/00086 , G11B20/1217 , G11B20/1833 , G11B2220/61
摘要： According to one embodiment, a recording apparatus includes a memory and a controller. The memory is capable of recording data. The controller divides the memory into a first region and a second region and controls the recording of the data. The controller writes externally supplied data into the first region without performing error correction coding and address conversion of a logical address into a physical address for the externally supplied data, and performs the error correction coding and the address conversion for the data, and then writes resulting data into the second region.
摘要翻译： 根据一个实施例，记录装置包括存储器和控制器。 存储器能够记录数据。 控制器将存储器分为第一区域和第二区域，并控制数据的记录。 控制器将外部提供的数据写入第一区域，而不对逻辑地址进行纠错编码和地址转换为外部提供的数据的物理地址，并对数据进行纠错编码和地址转换，然后写入 数据进入第二区域。
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公开(公告)号：US20100268948A1
公开(公告)日：2010-10-21
申请号：US12711570
申请日：2010-02-24
申请人： Shinichi MATSUKAWA , Taku Kato , Akihiro Kasahara , Hiroshi Suu , Akira Miura , Atsushi Kondo , Hiroyuki Sakamoto
发明人： Shinichi MATSUKAWA , Taku Kato , Akihiro Kasahara , Hiroshi Suu , Akira Miura , Atsushi Kondo , Hiroyuki Sakamoto
CPC分类号： H04L9/0822 , G06F21/10 , G06F21/42 , G06F21/78 , H04L9/0891 , H04L9/321 , H04L9/3263 , H04L63/0428 , H04L63/06 , H04L63/08 , H04L2209/60
摘要： A recording device comprises a memory unit configured to be communicationable with an external device and to record key data for encryption of content data through an authentication process, and a controller which controls the memory unit. The memory unit comprises a normal recording unit which is accessible from the exterior through the controller without an authentication process, a protected recording unit which is accessible from the external device when authentication of a first authentication process completes, and a writing restricted/protected recording unit which is accessible from the external device when authentication of a second authentication completes and is unwritable and unaccessible from the external device when authentication of only the first authentication process completes.
摘要翻译： 记录装置包括被配置为可以与外部设备通信的存储器单元，以及通过认证处理记录用于内容数据加密的密钥数据，以及控制存储器单元的控制器。 存储单元包括通过控制器从外部可以从外部访问而不进行认证处理的正常记录单元，当第一认证过程的认证完成时可从外部设备访问的受保护记录单元和写入限制/保护记录单元 当仅第一认证过程的认证完成时，可以从外部设备访问第二认证的认证，并且在外部设备不可访问和不可访问时。
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公开(公告)号：US20140032934A1
公开(公告)日：2014-01-30
申请号：US13731574
申请日：2012-12-31
IPC分类号： G06F12/14
CPC分类号： G06F12/1408 , G06F12/14 , G06F21/10 , G06F21/79 , G06F2221/0711 , G06F2221/2107 , G11B20/00086
摘要： According to one embodiment, a storage system includes a host device and a secure storage. The host device and the secure storage produce a bus key which is shared only by the host device and the secure storage by authentication processing, and which is used for encoding processing. The host device produces a message authentication code including a message which can be stored in the secure storage based on the bus key, and sends the produced message authentication code to the secure storage. The secure storage stores the message included in the message authentication code in accordance with instructions of the host device. The host device verifies whether the message stored in the secure storage is intended contents.
摘要翻译： 根据一个实施例，存储系统包括主机设备和安全存储器。 主机设备和安全存储器产生总线密钥，该总线密钥仅由主机设备和安全存储器通过认证处理共享，并且用于编码处理。 主机设备产生包括可以基于总线密钥存储在安全存储器中的消息的消息认证码，并将产生的消息认证码发送到安全存储器。 安全存储器根据主机设备的指令存储包括在消息认证码中的消息。 主机设备验证存储在安全存储器中的消息是否是内容。
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公开(公告)号：US20140006738A1
公开(公告)日：2014-01-02
申请号：US13538553
申请日：2012-06-29
IPC分类号： G06F12/14
摘要： A method of authenticating a memory device by a host device, wherein the memory device, a memory device controller, a memory card containing the memory device and the controller, and the host device are manufactured by a memory device manufacturer, a controller manufacturer, a memory card manufacturer, and a host device manufacturer, respectively. The memory device comprises a first area, a second area for storing key index information, which is written by the memory device manufacturer before shipping the memory device, and a third area for storing a set of encrypted keys whose index corresponds to the key index information, which is written by the memory device manufacturer before shipping the memory device. After the memory device is shipped, the first area is not readable or writable by the controller, the second area readable but not writable by the controller, and the third area readable and writable by the controller.
摘要翻译： 一种通过主机设备验证存储器件的方法，其中存储器件，存储器件控制器，包含存储器件和控制器的存储卡以及主机器件由存储器件制造商，控制器制造商， 存储卡制造商和主机设备制造商。 存储装置包括第一区域，用于存储密钥索引信息的第二区域，其由运送存储装置之前由存储装置制造商写入;以及第三区域，用于存储索引对应于密钥索引信息的一组加密密钥 ，这是由存储器件制造商在发送存储器件之前写入的。 在存储设备出货之后，控制器不能读取或写入第一区域，第二区域可由控制器读取但不可写入，而第三区域由控制器可读写。
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公开(公告)号：US20110091032A1
公开(公告)日：2011-04-21
申请号：US12862685
申请日：2010-08-24
申请人： Jun SATO , Taku KATO , Shinichi MATSUKAWA , Yuji NAGAI
发明人： Jun SATO , Taku KATO , Shinichi MATSUKAWA , Yuji NAGAI
IPC分类号： H04L9/28
CPC分类号： H04L9/0643 , H04L9/3236 , H04L2209/60
摘要： According to one embodiment, a content recording apparatus including, a key preparing section configured to prepare a key to encrypt an acquired stream, a file preparing section configured to add identification information to the acquired stream to prepare a file, a hash calculating section configured to calculate a hash value concerning the identification information added to the stream by the file preparing section, a key file preparing section configured to integrate the hash value calculated by the hash calculating section and the key prepared by the key preparing section to prepare a key file, and a writing section configured to write the key file prepared by the key file preparing section in the protected area of a recording medium.
摘要翻译： 根据一个实施例，一种内容记录装置，包括：密钥准备部，配置为准备加密所获取的流的密钥;文件准备部，被配置为向获取的流添加识别信息以准备文件;散列计算部，被配置为 计算关于由文件准备部分添加到流的识别信息的哈希值，密钥文件准备部分，被配置为将由哈希计算部分计算出的哈希值和由密钥准备部分准备的密钥进行整合以准备密钥文件， 以及写入部，被配置为将由密钥文件准备部分准备的密钥文件写入记录介质的保护区域。
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