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11. 发明申请

US20140241527A1 DEVICE AND AUTHENTICATION METHOD THEREFOR 审中-公开
公开(公告)号：US20140241527A1
公开(公告)日：2014-08-28
申请号：US13773822
申请日：2013-02-22
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Yuji Nagai , Taku Kato , Tatsuyuki Matsushita , Toshihiro Suzuki , Noboru Shibata
IPC分类号： H04L9/08
CPC分类号： H04L9/0869 , H04L9/0894 , H04L9/3242 , H04L2209/60 , H04N21/4181
摘要： According to one embodiment, an authentication method includes generating, by the memory, first authentication information by calculating secret identification information with a memory session key in one-way function operation, transmitting encrypted secret identification information, a family key block, and the first authentication information to a host, and generating, by the host, second authentication information by calculating the secret identification information generated by decrypting the encrypted secret identification information with the host session key in one-way function operation. The method further includes comparing, by the host, the first authentication information with the second authentication information.

12. 发明申请

US20140237264A1 AUTHENTICATION METHOD 有权
标题翻译：认证方法
公开(公告)号：US20140237264A1
公开(公告)日：2014-08-21
申请号：US14078783
申请日：2013-11-13
申请人： Kabushiki Kaisha Toshiba
发明人： Yuji Nagai , Taku Kato , Tatsuyuki Matsushita
IPC分类号： G06F12/14
CPC分类号： G06F12/1408 , G06F2212/1052 , H04L9/0861 , H04L9/3271
摘要： According to one embodiment, an authentication method comprising: generating a second key by the first key, the first key being stored in a memory and being prohibited from being read from outside; generating a session key by the second key; generating first authentication information, the secret identification information stored in a memory and being prohibited from being read from outside; transmitting encrypted secret identification information to an external device and receiving second authentication information from the external device, the encrypted secret identification information stored in a memory and readable, the second authentication information generated based on the encrypted secret identification information; and determining whether the first authentication information and the second authentication information match.
摘要翻译：根据一个实施例，一种认证方法，包括：通过第一密钥生成第二密钥，第一密钥存储在存储器中并被禁止从外部读取; 通过第二个密钥生成会话密钥; 生成第一认证信息，存储在存储器中并被禁止从外部读取的秘密识别信息; 向外部设备发送加密的秘密识别信息并从外部设备接收第二认证信息，所述加密的秘密识别信息存储在存储器中并且可读，所述第二认证信息是基于所述加密的秘密识别信息生成的; 以及确定所述第一认证信息和所述第二认证信息是否匹配。

13. 发明授权

US10095607B2 Information processing device, computer program product, and testing system with acquiring total execution history 有权
公开(公告)号：US10095607B2
公开(公告)日：2018-10-09
申请号：US15389661
申请日：2016-12-23
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Satoshi Aoki , Fukutomo Nakanishi , Hiroyoshi Haruki , Fangming Zhao , Tatsuyuki Matsushita , Toshinari Takahashi
IPC分类号： G06F9/44 , G06F11/36
摘要： A condition determination device includes an acquiring unit, a specifying unit, a classifying unit, and a condition determining unit. The acquiring unit acquires a total execution history, which is an execution count for each component included in a program, when a test is performed by supplying a plurality of input data to a target device which executes the program. The specifying unit specifies a shortage component of which the execution count indicated by the total execution history does not satisfy test criteria among components included in the program. The classifying unit classifies each of the input data into first data, which causes the target device to execute the shortage component, and second data, which does not cause the target device to execute the shortage component. The condition determining unit determines a condition of input data having a common characteristic with the first data.

14. 发明授权

US09413532B2 Information recording device 有权
公开(公告)号：US09413532B2
公开(公告)日：2016-08-09
申请号：US14790961
申请日：2015-07-02
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Taku Kato , Yuji Nagai , Tatsuyuki Matsushita
IPC分类号： H04L29/06 , H04L9/08 , H04L9/32 , G06F21/10 , G06F21/44 , G06F21/73 , G06F21/78
CPC分类号： H04L9/0869 , G06F21/10 , G06F21/445 , G06F21/73 , G06F21/78 , G06F2221/0724 , H04L9/0861 , H04L9/0866 , H04L9/3263 , H04L2209/60
摘要： A controller is provided with a controller key and a first controller identification information unique to the controller. The controller generates a controller unique key unique to a respective controller based on the controller key and the first controller identification information, and a second controller identification information based on the first controller identification information. A decryptor decrypts the encrypted medium device key using the controller unique key to obtain a medium device key. An authentication/key exchange process unit performs authentication/key exchange process with the host device through an interface unit using the medium device key and the medium device key certificate to establish the secure channel.

15. 发明授权

US09294285B2 Information recording device 有权
标题翻译：信息记录装置
公开(公告)号：US09294285B2
公开(公告)日：2016-03-22
申请号：US14446840
申请日：2014-07-30
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Taku Kato , Yuji Nagai , Tatsuyuki Matsushita
IPC分类号： H04L9/32 , H04L9/08
CPC分类号： H04L9/3247 , H04L9/0844 , H04L9/0861 , H04L9/0897 , H04L9/3263 , H04L2209/60
摘要： The data storage portion stores an encrypted medium device key Enc (Kcu, Kmd_i) generated by encrypting a medium device key (Kmd_i), a medium device key certificate (Certmedia), and encrypted content data generated by encrypting content data, the controller stores a controller key (Kc) and first controller identification information (IDcu), the information recording device being configured to execute, after being connected to an external host device, an one-way function calculation based on the controller key (Kc) and the first controller identification information (IDcu) to generate a controller unique key (Kcu) used when decrypting the encrypted medium device key Enc (Kcu, Kmd_i), and second controller identification information (IDcntr) used when decrypting the encrypted content data.
摘要翻译：数据存储部分存储通过加密介质设备密钥（Kmd_i），介质设备密钥证书（Certmedia）和通过加密内容数据生成的加密内容数据生成的加密的介质设备密钥Enc（Kcu，Kmd_i），控制器存储控制器键（Kc）和第一控制器识别信息（IDcu），所述信息记录装置被配置为在连接到外部主机设备之后执行基于所述控制器密钥（Kc）和所述第一控制器识别信息（IDcu），以生成当解密加密的介质设备密钥Enc（Kcu，Kmd_i）时使用的控制器唯一密钥（Kcu）以及当解密加密的内容数据时使用的第二控制器标识信息（IDcntr）。

16. 发明授权

US09225513B2 Authenticator, authenticatee and authentication method 有权
标题翻译：认证者，认证方和认证方式
公开(公告)号：US09225513B2
公开(公告)日：2015-12-29
申请号：US14090740
申请日：2013-11-26
申请人： Kabushiki Kaisha Toshiba
发明人： Taku Kato , Tatsuyuki Matsushita , Yuji Nagai , Fangming Zhao
IPC分类号： G06F21/31 , G06F21/62 , G06F21/34 , H04L9/08 , H04L9/32
CPC分类号： H04L9/0869 , G06F21/31 , G06F21/34 , G06F21/6218 , H04L9/0816 , H04L9/14 , H04L9/3271 , H04L2209/16 , H04L2209/24
摘要： According to one embodiment, an authenticator which authenticates an authenticatee, which stores first key information (NKey) that is hidden, includes a memory configured to store second key information (HKey) which is hidden, a random number generation module configured to generate random number information, and a data generation module configured to generate a session key (SKey) by using the second key information (HKey) and the random number information. The authenticator is configured such that the second key information (HKey) is generated from the first key information (NKey) but the first key information (NKey) is not generated from the second key information (HKey).
摘要翻译：根据一个实施例，认证存储隐藏的第一密钥信息（NKey）的认证者的认证器包括被配置为存储隐藏的第二密钥信息（HKey）的存储器，被配置为生成随机数的随机数生成模块信息和数据生成模块，被配置为通过使用第二密钥信息（HKey）和随机数信息来生成会话密钥（SKey）。认证器被配置为使得从第一密钥信息（NKey）生成第二密钥信息（HKey），但是不从第二密钥信息（HKey）生成第一密钥信息（NKey）。

17. 发明授权

US09160531B2 Host device, semiconductor memory device, and authentication method 有权
标题翻译：主机设备，半导体存储设备和认证方法
公开(公告)号：US09160531B2
公开(公告)日：2015-10-13
申请号：US14523225
申请日：2014-10-24
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Taku Kato , Tatsuyuki Matsushita , Yuji Nagai
IPC分类号： G06F12/14 , G06F21/60 , H04L9/08 , H04L9/32
CPC分类号： H04L9/0861 , G06F12/1408 , G06F21/602 , G06F2212/1052 , H04L9/0816 , H04L9/0822 , H04L9/0833 , H04L9/0897 , H04L9/32 , H04L2209/601
摘要： According to one embodiment, encrypted secret identification information (E-SecretID) and the key management information (FKB) are read from a memory device. Encrypted management key (E-FKey) is obtained using the key management information (FKB) and index information (k). The index information (k) and the encrypted management key (E-FKey) are transmitted to the semiconductor memory device. An index key (INK) is generated using the first key information (NKey) and the received index information (k). The encrypted management key (E-FKey) is decrypted using the index key (INK) to obtain management key (FKey), which is transmitted to the host device.
摘要翻译：根据一个实施例，从存储设备读取加密的秘密识别信息（E-SecretID）和密钥管理信息（FKB）。使用密钥管理信息（FKB）和索引信息（k）获得加密管理密钥（E-FKey）。索引信息（k）和加密管理密钥（E-FKey）被发送到半导体存储器件。使用第一密钥信息（NKey）和接收的索引信息（k）生成索引密钥（INK）。使用索引密钥（INK）对加密管理密钥（E-FKey）进行解密以获得被发送到主机设备的管理密钥（FKey）。

18. 发明授权

US09100187B2 Authenticator 有权
标题翻译：认证者
公开(公告)号：US09100187B2
公开(公告)日：2015-08-04
申请号：US14148497
申请日：2014-01-06
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Taku Kato , Tatsuyuki Matsushita , Yuji Nagai , Shinichi Matsukawa
IPC分类号： H04L29/06 , H04L9/32 , H04L9/08 , G11B20/00
CPC分类号： H04L9/321 , G11B20/00115 , G11B20/00217 , G11B2220/60 , H04L9/0816 , H04L9/0822 , H04L9/0833 , H04L9/0869 , H04L9/0897 , H04L9/32 , H04L2209/601
摘要： According to one embodiment, a method for authenticating a device, wherein the device holds secret identification information, encrypted secret identification information, and key management information, and an authenticator holds an identification key, the method includes reading, by the authenticator, the encrypted secret identification information and the key management information from the device, and obtaining, by the authenticator, a family key by using the key management information, the family key being capable of being decrypted with the identification key. The method further includes obtaining, by the authenticator, the secret identification information by decrypting the encrypted secret identification information with the family key.
摘要翻译：根据一个实施例，一种用于认证设备的方法，其中所述设备保存秘密识别信息，加密的秘密识别信息和密钥管理信息，并且认证器保存识别密钥，所述方法包括由认证者读取加密的秘密识别信息和密钥管理信息，并且由认证者通过使用密钥管理信息获得家庭密钥，家庭密钥能够用识别密钥解密。该方法还包括通过用家庭密钥解密加密的秘密识别信息，由认证者获得秘密识别信息。

19. 发明授权

US08990571B2 Host device, semiconductor memory device, and authentication method 有权
公开(公告)号：US08990571B2
公开(公告)日：2015-03-24
申请号：US14135428
申请日：2013-12-19
申请人： Kabushiki Kaisha Toshiba
发明人： Taku Kato , Tatsuyuki Matsushita , Yuji Nagai
IPC分类号： H04L9/08 , H04L9/32
CPC分类号： H04L9/0861 , G06F12/1408 , G06F21/602 , G06F2212/1052 , H04L9/0816 , H04L9/0822 , H04L9/0833 , H04L9/0897 , H04L9/32 , H04L2209/601
摘要： According to one embodiment, encrypted secret identification information (E-SecretID) and the key management information (FKB) are read from a memory device. Encrypted management key (E-FKey) is obtained using the key management information (FKB) and index information (k). The index information (k) and the encrypted management key (E-FKey) are transmitted to the semiconductor memory device. An index key (INK) is generated using the first key information (NKey) and the received index information (k). The encrypted management key (E-FKey) is decrypted using the index key (INK) to obtain management key (FKey), which is transmitted to the host device.

20. 发明授权

US09515827B2 Key management device, communication device, communication system, and computer program product 有权
标题翻译：密钥管理设备，通信设备，通信系统和计算机程序产品
公开(公告)号：US09515827B2
公开(公告)日：2016-12-06
申请号：US14132148
申请日：2013-12-18
申请人： Kabushiki Kaisha Toshiba
发明人： Yoshikazu Hanatani , Toru Kambayashi , Tatsuyuki Matsushita
IPC分类号： H04L9/32 , H04L9/08
CPC分类号： H04L9/0891
摘要： According to an embodiment, a key management device includes a key exchange processing unit, a transmission unit, and an update unit. The key exchange processing unit is configured to perform a key exchange process for executing an exchange of a shared key together with authentication between the key management device and a communication device. The transmission unit is configured to transmit update information for updating a device key of the communication device authenticated to the communication device, when the communication device has not been authenticated before performing the key exchange process, and not to transmit the update information, otherwise. The update unit is configured to update the device key using the update information, when the communication device has not been authenticated before performing the key exchange process, and not to update the device key, otherwise.
摘要翻译：根据实施例，密钥管理设备包括密钥交换处理单元，传输单元和更新单元。密钥交换处理单元被配置为执行密钥交换处理，用于执行共享密钥的交换以及密钥管理设备和通信设备之间的认证。另外，发送单元被配置为当通信设备在执行密钥交换处理之前还没有被认证，而不发送更新信息时，发送更新认证通信设备的设备密钥的更新信息给通信设备。更新单元被配置为当在执行密钥交换处理之前通信设备尚未被认证，并且不更新设备密钥时，使用更新信息来更新设备密钥。

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