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41. 发明授权

US07886365B2 Content-log analyzing system and data-communication controlling device 有权
标题翻译：内容日志分析系统和数据通信控制设备
公开(公告)号：US07886365B2
公开(公告)日：2011-02-08
申请号：US10457466
申请日：2003-06-10
申请人： Yuichi Futa , Motoji Ohmori , Hirohito Kitatora , Natsume Matsuzaki , Makoto Tatebayashi , Kaoru Yokotoa
发明人： Yuichi Futa , Motoji Ohmori , Hirohito Kitatora , Natsume Matsuzaki , Makoto Tatebayashi , Kaoru Yokotoa
IPC分类号： G06F21/24 , H04L12/28 , H04L29/06
CPC分类号： H04L12/2834 , H04L12/2803 , H04L12/2812 , H04L12/2823 , H04L63/0428 , H04L63/0823 , H04L2463/101
摘要： In a content-log analyzing system, content includes additional information indicating, according to a property of the content, whether or not to record communication of the content in a content-log. When transmitting content to a TV or a PC, a data-communication controlling device judges whether or not to record the communication in a content-log based upon additional information of the content, and when judging affirmatively, generates and stores content-log information. A content-log analyzing server obtains the content-log stored in the data-communication controlling device, and analyzes the obtained content-log.
摘要翻译：在内容日志分析系统中，内容包括附加信息，其指示根据内容的属性，是否在内容日志中记录内容的通信。当数据通信控制装置向TV或PC发送内容时，根据内容的附加信息来判定是否在内容日志中记录通信，在判断时，生成并存储内容日志信息。内容日志分析服务器获取存储在数据通信控制装置中的内容日志，并分析所获得的内容日志。

42. 发明申请

US20090074179A1 Information security device and elliptic curve operating device 有权
标题翻译：信息安全装置和椭圆曲线操作装置
公开(公告)号：US20090074179A1
公开(公告)日：2009-03-19
申请号：US11912112
申请日：2006-04-25
申请人： Yuichi Futa , Natsume Matsuzaki
发明人： Yuichi Futa , Natsume Matsuzaki
IPC分类号： H04L9/28
CPC分类号： G06F7/725 , G06F2207/7261 , H04L9/003 , H04L9/3066 , H04L9/3252 , H04L2209/12 , H04L2209/56 , H04L2209/60
摘要： Resistance against simple power analysis is maintained while a smaller table is used. An IC card 100 decrypts encrypted information using elliptic curve calculation for calculating a point k*C by multiplying a point C on the elliptic curve E with a coefficient k that is a positive integer less that a prime p. The calculation of the point k*C is performed by adding a multiplication result obtained by multiplying a digit position (window) value w of the acquired coefficient k with the point C in a position corresponding to the digit position, and is performed with respect to all digit positions. When a non-negative integer exists that fulfills a condition that the acquired digit value w can be divided by 2t and cannot be divided by 2t+1, the multiplication includes adding a point obtained by multiplying a point Q with w/2t.
摘要翻译：在使用较小的桌子的同时保持对简单功率分析的抵抗力。 IC卡100使用用于通过将椭圆曲线E上的点C乘以小于素数p的正整数的系数k来计算点k * C的椭圆曲线计算来解密加密信息。通过将获取的系数k的数字位置（窗口）值w与点数C相对应的数位位置（窗口值）w相乘而获得的相乘结果相加，执行点k * C的计算，并且相对于全数位置当存在满足获取的数字值w可以除以2t并且不能被除以2t + 1的条件的非负整数时，乘法包括将通过将点Q与w / 2t相乘获得的点相加。

43. 发明授权

US07296147B2 Authentication system and key registration apparatus 失效
标题翻译：认证系统和密钥登记设备
公开(公告)号：US07296147B2
公开(公告)日：2007-11-13
申请号：US10454531
申请日：2003-06-05
申请人： Natsume Matsuzaki , Makoto Tatebayashi , Kaoru Yokota , Yuichi Futa , Motoji Ohmori , Hirohito Kitatora
发明人： Natsume Matsuzaki , Makoto Tatebayashi , Kaoru Yokota , Yuichi Futa , Motoji Ohmori , Hirohito Kitatora
IPC分类号： H04L9/00 , H04K1/00 , G06K9/00
CPC分类号： H04L9/321 , G06Q20/388 , H04L9/0822 , H04L9/0866 , H04L9/0891 , H04L9/0897 , H04L9/3273 , H04L12/2803 , H04L63/062 , H04L63/0853 , H04L63/0876 , H04L2209/60
摘要： In an authentication system, a key registration apparatus receives input of an identifier unique to a second device, generates first key data from the identifier according to a predetermined key generation algorithm, and transmits the generated first key data to a first device, which receives and stores the first key data, and authenticates the second device with use of the first key data. The second device stores in advance second key data generated from the identifier according to the predetermined key generation algorithm, and is authenticated by the first device with use of the second key data. Accordingly, the first and second devices cannot be registered without using the key registration apparatus, thereby preventing communication with unregistered devices. This enables usage of content to be limited to individual usage in the home of a user, and can be realized even with devices that are not connected outside the home.
摘要翻译：在认证系统中，密钥注册装置接收对第二装置唯一的标识符的输入，根据预定的密钥生成算法从标识符生成第一密钥数据，并将生成的第一密钥数据发送到第一装置，存储第一密钥数据，并使用第一密钥数据认证第二设备。第二设备预先存储根据预定密钥生成算法从标识符生成的第二密钥数据，并且通过第二密钥数据由第一设备认证。因此，在不使用密钥登记装置的情况下，不能登记第一和第二装置，从而防止与未登记装置的通信。这使得内容的使用被限制在用户的家庭中的个人使用，并且即使使用不在家外的设备也可以实现。

44. 发明申请

US20050157872A1 RSA public key generation apparatus, RSA decryption apparatus, and RSA signature apparatus 审中-公开
标题翻译： RSA公钥生成装置，RSA解密装置以及RSA签名装置
公开(公告)号：US20050157872A1
公开(公告)日：2005-07-21
申请号：US10984665
申请日：2004-11-09
申请人： Takatoshi Ono , Natsume Matsuzaki , Yuichi Futa
发明人： Takatoshi Ono , Natsume Matsuzaki , Yuichi Futa
IPC分类号： H04L9/30 , H04L9/32 , H04L9/00
CPC分类号： H04L9/3249 , H04L9/302 , H04L2209/56
摘要： An RSA decryption apparatus that is used in an IC card or the like counters a differential fault attack. The RSA decryption apparatus computes at high speed a public key used in data verification, without having to obtain the public key from an external source. The RSA decryption apparatus includes a remainder computation unit 412 that calculates dp=d mod (p−1), and an inverse computation unit 414 that finds an inverse of dp over a residue field with p−1 as a modulus. The RSA decryption apparatus verifies a decipher text with use of the inverse of dp as the public key. The reduced bit count in inverse computation compared to if the inverse of d is found as the public key increases computing speed.
摘要翻译：在IC卡等中使用的RSA解密装置反映差分故障攻击。 RSA解密装置高速计算用于数据验证的公开密钥，而不必从外部源获得公共密钥。 RSA解密装置包括：计算d≠p mod（p-1）的余数计算单元412，以及求出d∧ 在p-1作为模量的残留场上。 RSA解密装置使用公开密钥d D的倒数验证解密文本。与如果将d的倒数作为公开密钥发现的逆计算相比，减少的比特数增加了计算速度。

45. 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。

46. 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。

47. 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。

48. 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。

49. 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。

50. 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。

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