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41. 发明申请

US20080089514A1 Signature Generation Device, Key Generation Device, and Signature Generation Method 有权
标题翻译：签名生成装置，密钥生成装置和签名生成方法
公开(公告)号：US20080089514A1
公开(公告)日：2008-04-17
申请号：US11795256
申请日：2006-01-17
申请人： Yuichi Futa , Shingo Hasegawa , Shuji Isobe , Motoji Ohmori , Hiroki Shizuka
发明人： Yuichi Futa , Shingo Hasegawa , Shuji Isobe , Motoji Ohmori , Hiroki Shizuka
IPC分类号： H04L9/30
CPC分类号： H04L9/14 , G06F9/30007 , H04L9/3066 , H04L9/3093 , H04L9/3247
摘要： There is provided a signature generation apparatus capable of preventing transcript attack on signature data. The signature generation apparatus for generating signature data for message data (i) acquires, according to a predetermined acquisition method, a private key, which is different from a private key used in a previous digital signature operation, from among a plurality of private keys generated using a key generation method of a signature scheme in which the plurality of private keys correspond to a single public key, and (ii) performs, using the acquired private key, a digital signature operation on the message data according to a signature method of the signature scheme to generate the signature data.
摘要翻译：提供了能够防止对签名数据的转录攻击的签名生成装置。用于生成消息数据的签名数据的签名生成装置（i）根据预定的获取方法从生成的多个私钥中获取与先前的数字签名操作中使用的私钥不同的私钥使用其中所述多个私钥对应于单个公钥的签名方案的密钥生成方法，以及（ii）使用所获取的私钥对所述消息数据执行数字签名操作，所述签名方法根据所述签名方法签名方案生成签名数据。

42. 发明授权

US09165146B2 Content management device and content management method 有权
标题翻译：内容管理设备和内容管理方法
公开(公告)号：US09165146B2
公开(公告)日：2015-10-20
申请号：US13877833
申请日：2012-08-07
申请人： Kouji Miura , Natsume Matsuzaki , Yuichi Futa , Shunji Harada , Hideki Matsushima
发明人： Kouji Miura , Natsume Matsuzaki , Yuichi Futa , Shunji Harada , Hideki Matsushima
IPC分类号： G06F21/60 , G06F21/10 , G06Q10/10
CPC分类号： G06F21/60 , G06F21/10 , G06Q10/101
摘要： Provided is a content management device for protecting a content of a provider. A content management device 800 deletes one or more contents shared with and held by a user of another device. The content management device 800 comprises: a sharing unit 801 configured to distribute the contents to the user and thereby share the contents with the user; and a switching unit 802 configured to switch a method of the deletion to another method according to a time elapsed from the distribution.
摘要翻译：提供了一种用于保护提供者的内容的内容管理装置。内容管理装置800删除由另一装置的用户共享和保持的一个或多个内容。内容管理装置800包括：共享单元801，被配置为将内容分发给用户，从而与用户共享内容; 以及切换单元802，被配置为根据从分发经过的时间将删除的方法切换到另一种方法。

43. 发明授权

US07958240B2 Group judgment device 有权
标题翻译：组判断装置
公开(公告)号：US07958240B2
公开(公告)日：2011-06-07
申请号：US12266010
申请日：2008-11-06
申请人： Yuichi Futa , Hiroki Yamauchi , Yuusaku Ohta , Natsume Matsuzaki
发明人： Yuichi Futa , Hiroki Yamauchi , Yuusaku Ohta , Natsume Matsuzaki
IPC分类号： G06F15/173
CPC分类号： H04W40/246 , H04L29/06 , H04L41/0893 , H04L41/509 , H04L43/50 , H04L63/0492 , H04L63/08 , H04L63/10 , H04L67/18 , H04L69/16 , H04L69/329 , H04W4/02 , H04W40/20 , H04W76/10
摘要： In a server, an echo-request transmitting unit transmits echo-request data to a target device, and an echo-reply receiving unit receives echo-reply data from the target device. A time measuring unit measures, as the target time, the time required between transmission of the echo-request data and reception of the echo-reply data, and compares the target time with the reference time. In this way, the server judges whether the target device connected to its network belongs to a predetermined group.
摘要翻译：在服务器中，回波请求发送单元向目标设备发送回波请求数据，回波应答接收单元从目标设备接收回波应答数据。时间测量单元测量回波请求数据的发送和回波回复数据的接收之间的时间作为目标时间，并将目标时间与参考时间进行比较。以这种方式，服务器判断连接到其网络的目标设备是否属于预定组。

44. 发明申请

US20110093210A1 MEASUREMENT DEVICE AND METHOD OF CONTROLLING THE SAME 有权
标题翻译：测量装置及其控制方法
公开(公告)号：US20110093210A1
公开(公告)日：2011-04-21
申请号：US12995801
申请日：2010-04-02
申请人： Natsume Matsuzaki , Yuichi Futa , Masao Nonaka
发明人： Natsume Matsuzaki , Yuichi Futa , Masao Nonaka
IPC分类号： G06F19/00 , H04L9/32
CPC分类号： A61B5/021 , A61B5/0002 , A61B5/0006 , A61B5/024 , A61B2560/0271 , G06F19/00 , G06F19/3418 , H04L9/085 , H04L9/302 , H04L9/3231 , H04L9/3247 , H04L2209/805 , H04L2209/88
摘要： A measurement device includes: a first measurement unit (101) measuring first biological data at least k times (k≧2) to obtain any k first measurement values; a distributed-signature generation unit (104) executing signature operations for the k first measurement values using any various k distributed-signature keys, respectively, to generate k distributed signatures, where the k distributed-signature keys can reconstruct a signature generation key only when all of them are available; a signature synthesis unit (106) synthesizing the k distributed signatures together to reconstruct a signature; and a steady state verification unit (107) verifying, using a signature verification key corresponding to the signature generation key, whether or not the signature reconstructed by the signature synthesis unit is correct, where the correctness of the signature means that the k first measurement values are same values.
摘要翻译：测量装置包括：测量至少k次（k≥2）的第一生物数据以获得任何k个第一测量值的第一测量单元（101）一个分布式签名生成单元（104）分别使用各种k个分布式签名密钥执行k个第一测量值的签名操作，以生成k个分布式签名，其中k个分布式签名密钥只能在所有这些都可用; 签名合成单元（106），将k个分散签名合成在一起以重构签名; 以及稳定状态验证单元，使用与所述签名生成密钥相对应的签名验证密钥，验证由所述签名合成部重构的签名是否正确，所述签名的正确性是指所述k个第一测量值是相同的值。

45. 发明申请

US20100177886A1 INFORMATION SECURITY DEVICE 有权
标题翻译：信息安全设备
公开(公告)号：US20100177886A1
公开(公告)日：2010-07-15
申请号：US12376494
申请日：2008-05-20
申请人： Yuichi Futa , Masao Nonaka , Natsume Matsuzaki
发明人： Yuichi Futa , Masao Nonaka , Natsume Matsuzaki
IPC分类号： H04L9/28 , G06F1/28
CPC分类号： G06F7/723 , G06F2207/7261 , H04L9/002 , H04L9/302 , H04L9/3066
摘要： To aim to provide an information security device capable of reducing a period necessary for performing a power operation used for secret communication or authentication. The information security device performs secret communication or authentication by calculating an exponentiation X̂d based on target data X and a secret value d using the window method. In the process of calculating the exponentiation X̂d, immediately after square of a random value R acquired for multiplication is repeatedly performed a predetermined number of times, for example 256 times, a result of square of the random value R is cancelled using a cancellation value S (=R̂(−2̂256)). This makes it unnecessary to perform cancellation processing that has been conventionally performed.
摘要翻译：旨在提供能够减少执行用于秘密通信或认证的电力操作所需的时间的信息安全装置。信息安全装置通过使用窗口方法基于目标数据X和秘密值d计算取幂Xd来执行秘密通信或认证。在计算求幂Xd的过程中，在乘法获得的随机值R的平方之后，如果重复执行预定次数（例如256次），则使用消除值S来取消随机值R的平方的结果（= R（-2256））。这使得不需要执行常规执行的取消处理。

46. 发明申请

US20100031065A1 INFORMATION SECURITY APPARATUS 有权
标题翻译：信息安全设备
公开(公告)号：US20100031065A1
公开(公告)日：2010-02-04
申请号：US12443736
申请日：2007-11-02
申请人： Yuichi Futa , Kaoru Yokota , Masao Nonaka , Manabu Maeda , Natsume Matsuzaki
发明人： Yuichi Futa , Kaoru Yokota , Masao Nonaka , Manabu Maeda , Natsume Matsuzaki
IPC分类号： G06F12/14 , G06F11/07
CPC分类号： H04L9/3242 , H03K3/0315 , H04L9/0866
摘要： Provided is an information security apparatus (1100) that has enhanced stability and confidentiality of a hash key. The information security apparatus (1100) includes an information generating PUF unit (1104) that has tamper resistance set, using physical characteristics, so as to output a preset hash key, a partial error-correction information storage unit (1107) that stores partial error-correction information, an error correcting PUF unit (1106) that has tamper-resistance set, using physical characteristics, so as to output error-correcting PUF information, an error-correction information generating unit (1108) that generates error-correction information using partial correction information and the error-correcting PUF information, and an error correcting unit (1105) that corrects an error for the hash key outputted from the information generating PUF unit (1104) and outputs an error-corrected hash key.
摘要翻译：提供了具有增强的散列密钥的稳定性和机密性的信息安全装置（1100）。信息安全装置（1100）包括使用物理特性设置了防篡改设置的信息生成PUF单元（1104），以便输出预设的散列密钥，存储部分错误的部分纠错信息存储单元（1107）校正信息，使用物理特性设置了防篡改设置的纠错PUF单元（1106），以便输出纠错PUF信息;纠错信息生成单元（1108），其使用部分校正信息和错误校正PUF信息，以及纠错单元（1105），其纠正从信息生成PUF单元（1104）输出的散列密钥的错误，并输出纠错散列密钥。

47. 发明申请

US20100014677A1 GROUP SUBORDINATE TERMINAL, GROUP MANAGING TERMINAL, SERVER, KEY UPDATING SYSTEM, AND KEY UPDATING METHOD THEREFOR 失效
标题翻译：集团子终端，集团管理终端，服务器，主要更新系统及其主要更新方法
公开(公告)号：US20100014677A1
公开(公告)日：2010-01-21
申请号：US12147126
申请日：2008-06-26
申请人： Taichi Sato , Kaoru Yokota , Natsume Matsuzaki , Yuichi Futa , Tetsuya Inoue , Masao Nonaka
发明人： Taichi Sato , Kaoru Yokota , Natsume Matsuzaki , Yuichi Futa , Tetsuya Inoue , Masao Nonaka
IPC分类号： H04L9/08
CPC分类号： H04L9/0833 , H04L9/0891 , H04L2209/60
摘要： Provided is a group subordinate terminal in a key updating system that includes a server and a group of terminals including: a group managing terminal; and group subordinate terminals including the group subordinate terminal, the group subordinate terminal comprising: a group withdrawal request processing unit which transmits a group withdrawal request to the group managing terminal in response to an instruction to update its apparatus-unique key, the group withdrawal request requesting for withdrawal of the group subordinate terminal from the group; an update apparatus-unique key requesting unit which requests for another apparatus-unique key by transmitting to the server a group withdrawal certificate indicating that the withdrawal of the group subordinate terminal from the group of terminals is completed through invalidation of its group key; and an update processing unit which updates the apparatus-unique key held in an apparatus-unique key holding unit to the another apparatus-unique key obtained from the server.
摘要翻译：提供了一种密钥更新系统中的组下属终端，其包括服务器和一组终端，包括：组管理终端; 组群下属终端包括：群组提取请求处理单元，响应于更新其装置唯一密钥的指令向组管理终端发送组提款请求，组提款请求要求集团下属终端从集团撤出; 更新设备唯一密钥请求单元，其通过向服务器发送指示通过其组密钥的无效来完成组从属终端的撤销而完成的组取出证书来请求另一设备唯一密钥; 以及更新处理单元，其将从设备唯一密钥保存单元保存的设备唯一密钥更新为从服务器获得的另一设备唯一密钥。

48. 发明申请

US20090097641A1 MANAGEMENT-APPARATUS CARD, MEASURING APPARATUS, HEALTH CARE SYSTEM, AND METHOD FOR COMMUNICATING VITAL SIGN DATA 有权
标题翻译：管理装置卡，测量装置，卫生保健系统和通信卫星信号数据的方法
公开(公告)号：US20090097641A1
公开(公告)日：2009-04-16
申请号：US12249212
申请日：2008-10-10
申请人： Natsume Matsuzaki , Kaoru Yokota , Yuichi Futa , Masao Nonaka , Shunji Harada
发明人： Natsume Matsuzaki , Kaoru Yokota , Yuichi Futa , Masao Nonaka , Shunji Harada
IPC分类号： H04L9/06
CPC分类号： H04L9/30 , H04L2209/805 , H04L2209/88
摘要： The management-apparatus card capable of being attached to a management apparatus receives, from the measuring apparatus, first unique information indicating the measuring apparatus, and identification information indentifying a user of the measuring apparatus; stores second unique information indicating the management-apparatus card; generates a decryption key corresponding to an encryption key, using the first unique information, the second unique information, and the identification information; stores the generated decryption key; receives encrypted vital sign data from the measuring apparatus; decrypts the received vital sign data using the stored decryption key; and obtains the decrypted vital sign data.
摘要翻译：能够附接到管理装置的管理装置卡从测量装置接收指示测量装置的第一唯一信息和识别测量装置的用户的识别信息; 存储指示管理装置卡的第二唯一信息; 使用第一唯一信息，第二唯一信息和识别信息生成与加密密钥对应的解密密钥; 存储生成的解密密钥; 从测量装置接收加密的生命体征数据; 使用所存储的解密密钥对接收到的生命体数据进行解密; 并获得解密的生命体征数据。

49. 发明申请

US20080275991A1 GROUP FORMATION/MANAGEMENT SYSTEM, GROUP MANAGEMENT DEVICE, AND MEMBER DEVICE 有权
标题翻译：组织形成/管理系统，集团管理设备和会员设备
公开(公告)号：US20080275991A1
公开(公告)日：2008-11-06
申请号：US12173531
申请日：2008-07-15
申请人： Natsume Matsuzaki , Toshihisa Abe , Toshihisa Nakano , Yuichi Futa , Masaya Miyazaki
发明人： Natsume Matsuzaki , Toshihisa Abe , Toshihisa Nakano , Yuichi Futa , Masaya Miyazaki
IPC分类号： G06F15/173
CPC分类号： G06F21/10 , G06F2221/0706 , G06F2221/2103 , G06F2221/2117
摘要： A group management device provides with a content a device included in a group managed by the group management device. The group management device includes a storage unit that stores a total number of remote device that the group management device currently registers, a maximum number of remote devices that the group management device is permitted to register, a total number of local device that the group management device currently registers, and a maximum number of local devices that the group management device is permitted to register. The group management device also includes a judging unit that judges whether the total number of the remote device exceeds the maximum number of the remote devices when it is judged that the one device is the remote device. The judging unit judges whether the total number of the local device exceeds the maximum number of the local devices when it is judged that the one device is the local device.
摘要翻译：组管理装置向组管理装置管理的组中包含的装置提供内容。组管理装置包括存储单元，存储组管理装置当前登记的远程设备的总数，组管理装置允许登记的最大数量的远程设备，组管理的本地设备的总数设备当前注册，允许组管理设备注册的本地设备的最大数量。组管理装置还包括判断单元，当判断为一个设备是远程设备时，该判断单元判断远程设备的总数是否超过远程设备的最大数量。当判断为一个设备是本地设备时，判断单元判断本地设备的总数是否超过本地设备的最大数量。

50. 发明申请

US20130191927A1 CONTENT MANAGEMENT DEVICE AND CONTENT MANAGEMENT METHOD 有权
标题翻译：内容管理设备和内容管理方法
公开(公告)号：US20130191927A1
公开(公告)日：2013-07-25
申请号：US13877833
申请日：2012-08-07
申请人： Kouji Miura , Natsume Matsuzaki , Yuichi Futa , Shunji Harada , Hideki Matsushima
发明人： Kouji Miura , Natsume Matsuzaki , Yuichi Futa , Shunji Harada , Hideki Matsushima
IPC分类号： G06F21/60
CPC分类号： G06F21/60 , G06F21/10 , G06Q10/101
摘要： Provided is a content management device for protecting a content of a provider. A content management device 800 deletes one or more contents shared with and held by a user of another device. The content management device 800 comprises: a sharing unit 801 configured to distribute the contents to the user and thereby share the contents with the user; and a switching unit 802 configured to switch a method of the deletion to another method according to a time elapsed from the distribution.
摘要翻译：提供了一种用于保护提供者的内容的内容管理装置。内容管理装置800删除由另一装置的用户共享和保持的一个或多个内容。内容管理装置800包括：共享单元801，被配置为将内容分发给用户，从而与用户共享内容; 以及切换单元802，被配置为根据从分发经过的时间将删除的方法切换到另一种方法。

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