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21. 发明申请

US20120201376A1 COMMUNICATION DEVICE AND KEY CALCULATING DEVICE 审中-公开
标题翻译：通信设备和主要计算设备
公开(公告)号：US20120201376A1
公开(公告)日：2012-08-09
申请号：US13366521
申请日：2012-02-06
申请人： Toru KAMBAYASHI , Yoshihiro Oba , Tatsuyuki Matsushita , Yasuro Shobatake , Satoshi Ito , Shinji Yamanaka
发明人： Toru KAMBAYASHI , Yoshihiro Oba , Tatsuyuki Matsushita , Yasuro Shobatake , Satoshi Ito , Shinji Yamanaka
IPC分类号： H04L9/00
CPC分类号： H04L9/0891 , H04L9/0822 , H04L9/0866 , H04L9/14
摘要： According to one embodiment, a communication device, which is connected to an external device, includes a key storage unit, an acquiring unit, a key selecting unit, and a calculating unit. The key storage unit stores therein a plurality of first information items obtained by twisting a plurality of device keys with first identification information for identifying the communication device. The acquiring unit acquires second identification information for identifying the external device. The key selecting unit selects one of the plurality of first information items using a media key block process. The calculating unit calculates a shared key, which is shared with the external device, using second information item obtained by twisting the selected first information item with the second identification information.
摘要翻译：根据一个实施例，连接到外部设备的通信设备包括密钥存储单元，获取单元，密钥选择单元和计算单元。密钥存储单元在其中存储通过用多个设备密钥通过用于识别通信设备的第一标识信息来扭转获得的多个第一信息项。获取单元获取用于识别外部设备的第二识别信息。密钥选择单元使用媒体密钥块处理来选择多个第一信息项中的一个。计算单元使用通过将所选择的第一信息项与第二识别信息进行扭转而获得的第二信息项来计算与外部设备共享的共享密钥。

22. 发明授权

US08861723B2 Storage device, access device, and program product 有权
标题翻译：存储设备，接入设备和程序产品
公开(公告)号：US08861723B2
公开(公告)日：2014-10-14
申请号：US13232187
申请日：2011-09-14
申请人： Toru Kambayashi , Tatsuyuki Matsushita
发明人： Toru Kambayashi , Tatsuyuki Matsushita
IPC分类号： H04L29/06 , H04L9/08
CPC分类号： H04L9/0897 , H04L9/0844 , H04L2209/603
摘要： In general, according to one embodiment, a storage device includes a data storage, a key storage, a receiver, an acquisition unit, a first computing unit, and a second computing unit. The data storage stores therein data. The key storage stores therein a plurality of device keys. The receiver receives identification information on an access device that accesses the data. The acquisition unit acquires an index specifying one of the device keys stored in the key storage. The first computing unit computes a second key based on the device key specified by the index and the identification information, the second key being used to perform an operation on key information acquired by performing an operation on a first key shared with the access device. The second computing unit computes the first key by performing an operation on the key information using the second key.
摘要翻译：通常，根据一个实施例，存储设备包括数据存储器，密钥存储器，接收器，获取单元，第一计算单元和第二计算单元。数据存储器存储数据。密钥存储器中存储有多个设备密钥。接收器在访问数据的接入设备上接收识别信息。获取单元获取指定存储在密钥存储器中的设备密钥之一的索引。第一计算单元基于由索引和识别信息指定的设备密钥来计算第二密钥，第二密钥用于对通过对与访问设备共享的第一密钥执行操作而获得的密钥信息执行操作。第二计算单元通过使用第二密钥对密钥信息执行操作来计算第一密钥。

23. 发明授权

US08989374B2 Cryptographic device for secure authentication 有权
标题翻译：用于安全认证的加密设备
公开(公告)号：US08989374B2
公开(公告)日：2015-03-24
申请号：US13524497
申请日：2012-06-15
申请人： Yuji Nagai , Taku Kato , Tatsuyuki Matsushita
发明人： Yuji Nagai , Taku Kato , Tatsuyuki Matsushita
IPC分类号： H04L9/00 , H04L29/06 , H04L9/32
CPC分类号： G09C1/00 , H04L9/0866 , H04L2209/12 , H04N5/907
摘要： According to one embodiment, a memory being used to store a host identification key, a host constant (HC), and a first key, the first key being generated based on the host constant (HC); a first generator configured to decrypt a family key block read from an external device with the host identification key to generate a family key; a second generator configured to decrypt encrypted secret identification information read from the external device with the family key to generate a secret identification information; a third generator configured to generate a random number; a fourth generator configured to generate a session key by using the first key and the random number; a fifth generator configured to generate a first authentication information by processing the secret identification information with the session key in one-way function operation.
摘要翻译：根据一个实施例，用于存储主机识别密钥，主机常数（HC）和第一密钥的存储器，所述第一密钥基于所述主机常数（HC）生成; 第一发生器，被配置为使用所述主机识别密钥来解密从外部设备读取的家庭密钥块，以生成家庭密钥; 第二发生器，被配置为使用所述家庭密钥解密从所述外部设备读取的加密的秘密识别信息，以生成秘密识别信息; 配置为生成随机数的第三生成器; 第四发生器，被配置为通过使用所述第一密钥和所述随机数来生成会话密钥; 第五生成器，被配置为通过在单向功能操作中用会话密钥处理秘密识别信息来生成第一认证信息。

24. 发明授权

US08949621B2 Memory device authentication 有权
标题翻译：内存设备认证
公开(公告)号：US08949621B2
公开(公告)日：2015-02-03
申请号：US13523259
申请日：2012-06-14
申请人： Yuji Nagai , Taku Kato , Tatsuyuki Matsushita
发明人： Yuji Nagai , Taku Kato , Tatsuyuki Matsushita
IPC分类号： H04L9/32 , H04L9/08
CPC分类号： H04L9/0822 , H04L9/0866 , H04L9/0869 , H04L9/0897 , H04L9/3242 , H04L9/3271
摘要： According to one embodiment, a device includes a first data generator configured to generate a second key (HKey) by encrypting a host constant (HC) with the first key (NKey); a second data generator configured to generate a session key (SKey) by encrypting a random number (RN) with the second key (HKey); a one-way function processor configured to generate an authentication information (Oneway-ID) by processing the secret identification information (SecretID) with the session key (SKey) in one-way function operation; and a data output interface configured to output the encrypted secret identification information (E-SecretID) and the authentication information (Oneway-ID) to outside of the device.
摘要翻译：根据一个实施例，一种设备包括：第一数据生成器，被配置为通过用第一密钥（NKey）加密主机常数（HC）来生成第二密钥（HKey）; 第二数据生成器，被配置为通过用第二密钥（HKey）加密随机数（RN）来生成会话密钥（SKey）; 单向功能处理器，被配置为通过在单向功能操作中通过会话密钥（SKey）处理秘密识别信息（SecretID）来生成认证信息（Oneway-ID）; 以及数据输出接口，被配置为将加密的秘密识别信息（E-SecretID）和认证信息（Oneway-ID）输出到设备外部。

25. 发明授权

US08898463B2 Device 有权
标题翻译：设备
公开(公告)号：US08898463B2
公开(公告)日：2014-11-25
申请号：US13524826
申请日：2012-06-15
申请人： Yuji Nagai , Taku Kato , Tatsuyuki Matsushita
发明人： Yuji Nagai , Taku Kato , Tatsuyuki Matsushita
IPC分类号： H04L29/06 , H04L9/32 , H04L9/00
CPC分类号： G06F21/44 , G06F21/79 , G06F2221/2129 , H04L9/3234
摘要： According to one embodiment, a device includes a cell array including an ordinary area, a hidden area, and an identification information record area in which identification information which defines a condition for accessing the hidden area is recorded. An authentication circuit performs authentication. A sensing circuit recognizes information recorded in the identification information storage area, determines the information recorded in the identification information record area when an access request selects the hidden area, validates an access to the hidden area when determined that the identification information is recorded, and invalidates an access to the hidden area when determined that the identification information is not recorded.
摘要翻译：根据一个实施例，一种装置包括一个单元阵列，包括普通区域，隐藏区域和识别信息记录区域，其中记录了定义用于访问隐藏区域的条件的识别信息。认证电路执行认证。感测电路识别记录在识别信息存储区域中的信息，当访问请求选择隐藏区域时，确定记录在识别信息记录区域中的信息，当确定识别信息被记录时验证对隐藏区域的访问，并且无效当确定没有记录识别信息时对隐藏区域的访问。

26. 发明授权

US08855297B2 Device and authentication method therefor 有权
标题翻译：设备及认证方法
公开(公告)号：US08855297B2
公开(公告)日：2014-10-07
申请号：US13524475
申请日：2012-06-15
申请人： Yuji Nagai , Taku Kato , Tatsuyuki Matsushita , Toshihiro Suzuki , Noboru Shibata
发明人： Yuji Nagai , Taku Kato , Tatsuyuki Matsushita , Toshihiro Suzuki , Noboru Shibata
IPC分类号： G06F21/24
CPC分类号： H04L9/0816 , G11B20/00362 , G11B20/00427 , H04L9/0822 , H04L9/0833 , H04L9/0897 , H04L9/32 , H04L2209/601
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.
摘要翻译：根据一个实施例，一种认证方法包括：通过在单向功能操作中用存储器会话密钥计算秘密识别信息，通过存储器生成第一认证信息，发送加密的秘密识别信息，家庭密钥块和第一认证信息发送到主机，并且由主机通过计算通过用单向功能操作中的主机会话密钥对加密的秘密识别信息进行解密而生成的秘密识别信息来生成第二认证信息。该方法还包括由主机将第一认证信息与第二认证信息进行比较。

27. 发明授权

US08812843B2 Device and authentication method therefor 有权
标题翻译：设备及认证方法
公开(公告)号：US08812843B2
公开(公告)日：2014-08-19
申请号：US13524843
申请日：2012-06-15
申请人： Yuji Nagai , Taku Kato , Tatsuyuki Matsushita , Toshihiro Suzuki , Noboru Shibata
发明人： Yuji Nagai , Taku Kato , Tatsuyuki Matsushita , Toshihiro Suzuki , Noboru Shibata
IPC分类号： H04L9/32
CPC分类号： H04L9/0816 , G11B20/00362 , G11B20/00427 , H04L9/0822 , H04L9/0833 , H04L9/0897 , H04L9/32 , H04L2209/601
摘要： According to one embodiment, a device includes first and second data generator, a one-way function processor, and a data output interface. The first data generator generates a second key by encrypting a host constant with a first key in AES operation. The second data generator generates a session key by encrypting a random number with a second key in AES operation. The one-way function processor generates authentication information by processing secret identification information with the session key in one-way function operation. The data output interface outputs the encrypted secret identification information, a family key block, and the authentication information to outside of the device.
摘要翻译：根据一个实施例，设备包括第一和第二数据生成器，单向功能处理器和数据输出接口。第一个数据生成器通过AES操作中的第一个密钥加密主机常数来生成第二个密钥。第二数据生成器通过在AES操作中用第二密钥加密随机数生成会话密钥。单向功能处理器通过在单向功能操作中通过会话密钥处理秘密识别信息来生成认证信息。数据输出接口将加密的秘密识别信息，家庭密钥块和认证信息输出到设备外部。

28. 发明授权

US08732466B2 Semiconductor memory device 有权
标题翻译：半导体存储器件
公开(公告)号：US08732466B2
公开(公告)日：2014-05-20
申请号：US13524894
申请日：2012-06-15
申请人： Yuji Nagai , Toshihiro Suzuki , Noboru Shibata , Taku Kato , Tatsuyuki Matsushita
发明人： Yuji Nagai , Toshihiro Suzuki , Noboru Shibata , Taku Kato , Tatsuyuki Matsushita
IPC分类号： H04L9/32
CPC分类号： H04L9/0816 , G11B20/00086 , G11B20/00115 , G11B20/0021 , G11B2220/2516 , G11B2220/60 , H04L9/0822 , H04L9/0833 , H04L9/0897 , H04L9/32 , H04L2209/601
摘要： According to one embodiment, a device includes a first memory area to store a first key. A second memory area stores encrypted secret identification (ID) information generated from secret ID information with a family key. A third memory area stores a family key block including data generated from the family key with an ID key. An authentication module performs authentication. A second key is generated from a first number with the first key, a session key is generated from a random number with the second key, and authentication information is generated from the secret ID information with the session key. The encrypted secret ID information, family key block and the authentication information is output.
摘要翻译：根据一个实施例，设备包括用于存储第一密钥的第一存储区域。第二存储区域存储从秘密ID信息生成的加密的秘密标识（ID）信息与家庭密钥。第三存储区域存储包括具有ID密钥的家族密钥产生的数据的家庭密钥块。认证模块执行认证。从具有第一密钥的第一号码生成第二密钥，从具有第二密钥的随机数生成会话密钥，并且从具有会话密钥的秘密ID信息生成认证信息。输出加密的秘密ID信息，家庭密钥块和认证信息。

29. 发明申请

US20130339733A1 DEVICE 有权
公开(公告)号：US20130339733A1
公开(公告)日：2013-12-19
申请号：US13524826
申请日：2012-06-15
申请人： Yuji Nagai , Taku Kato , Tatsuyuki Matsushita
发明人： Yuji Nagai , Taku Kato , Tatsuyuki Matsushita
IPC分类号： H04L9/32 , G06F7/04
CPC分类号： G06F21/44 , G06F21/79 , G06F2221/2129 , H04L9/3234
摘要： According to one embodiment, a device includes a cell array including an ordinary area, a hidden area, and an identification information record area in which identification information which defines a condition for accessing the hidden area is recorded. An authentication circuit performs authentication. A sensing circuit recognizes information recorded in the identification information storage area, determines the information recorded in the identification information record area when an access request selects the hidden area, validates an access to the hidden area when determined that the identification information is recorded, and invalidates an access to the hidden area when determined that the identification information is not recorded.

30. 发明申请

US20130336488A1 HOST DEVICE 有权
标题翻译：主机设备
公开(公告)号：US20130336488A1
公开(公告)日：2013-12-19
申请号：US13524579
申请日：2012-06-15
申请人： Taku KATO , Yuji Nagai , Tatsuyuki Matsushita
发明人： Taku KATO , Yuji Nagai , Tatsuyuki Matsushita
IPC分类号： H04L9/08
CPC分类号： H04L9/0822 , H04L9/3247 , H04L2209/60
摘要： The host device being configured to receive, from a key issuer who issued the medium device key (Kmd_i) and the medium device key certificate, a host device key (Khd_i) and a host device certificate (Certhost), the host device being configured to execute authentication with the information recording device using the host device key (Khd_i) and the host device certificate (Certhost), the host device being configured to receive second controller identification information (IDcntr) from the information recording device, the second controller identification information being generated by executing a one-way function calculation based on the controller key (Kc) and the first controller identification information (IDcu), and the host device being configured to decrypt the encrypted content data stored in the information recording device, in response to reception of the second controller identification information (IDcntr) from the information recording device.
摘要翻译：所述主机设备被配置为从发行所述媒体设备密钥（Kmd_i）和所述介质设备密钥证书的密钥发行者接收主机设备密钥（Khd_i）和主机设备证书（Certhost），所述主机设备被配置为使用所述主机设备密钥（Khd_i）和所述主机设备证书（Certhost）与所述信息记录设备一起执行认证，所述主机设备被配置为从所述信息记录设备接收第二控制器标识信息（IDcntr），所述第二控制器标识信息通过执行基于控制器密钥（Kc）和第一控制器标识信息（IDcu）的单向函数计算而产生的，并且主机设备被配置为响应于接收来对存储在信息记录设备中的加密内容数据进行解密的来自信息记录装置的第二控制器识别信息（IDcntr）。

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