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61. 发明申请

US20110194693A1 CRYPTOGRAPHIC PROCESSING APPARATUS AND METHOD 审中-公开
标题翻译：胶印加工设备和方法
公开(公告)号：US20110194693A1
公开(公告)日：2011-08-11
申请号：US13009645
申请日：2011-01-19
申请人： Tetsuya IZU , Masahiko Takenaka
发明人： Tetsuya IZU , Masahiko Takenaka
IPC分类号： H04L9/00
CPC分类号： G06F21/602 , H04L9/0637 , H04L9/0838 , H04L2209/125 , H04L2209/20
摘要： A cryptographic processing apparatus that encrypts plaintext using a fixed-value common key that is shared with other cryptographic processing apparatus, includes an acquiring unit that acquires random information being used within the cryptographic processing apparatuses, an encrypting unit that encrypts encryption target data using key information and outputs encrypted data when the encryption target data and the key information is set, a transmitting unit that transmits, to the other cryptographic processing apparatus, the encrypted data; and a setting unit that sets the fixed-value common key as the key information and the random information as the encryption target data when the random information is acquired by the acquiring unit, and sets the encrypted data as the key information and at least one portion of the plaintext as the target data when the encrypted data is acquired.
摘要翻译：一种使用与其他密码处理装置共享的固定值公用密钥对明文进行加密的密码处理装置，包括获取单元，其获取密码处理装置内正在使用的随机信息，加密单元，使用密钥信息对加密对象数据进行加密并且当加密对象数据和密钥信息被设置时，输出加密数据;发送单元，向其他密码处理装置发送加密数据; 以及设置单元，其在所述获取单元获取所述随机信息时将所述固定值公共密钥设置为所述密钥信息，并且所述随机信息作为所述加密对象数据，并将所述加密数据设置为所述密钥信息，并且至少一部分作为获取加密数据时的目标数据。

62. 发明申请

US20100232601A1 ELLIPTIC CURVE ARITHMETIC PROCESSING UNIT AND ELLIPTIC CURVE ARITHMETIC PROCESSING PROGRAM AND METHOD 审中-公开
标题翻译：椭圆曲线算术处理单元和椭圆曲线算术处理程序和方法
公开(公告)号：US20100232601A1
公开(公告)日：2010-09-16
申请号：US12688033
申请日：2010-01-15
申请人： Kouichi ITOH , Dai Yamamoto , Tetsuya Izu , Masahiko Takenaka , Kazuyoshi Furukawa
发明人： Kouichi ITOH , Dai Yamamoto , Tetsuya Izu , Masahiko Takenaka , Kazuyoshi Furukawa
IPC分类号： H04L9/28
CPC分类号： G06F7/725 , G06F2207/7271
摘要： An apparatus for executing cryptographic calculation on the basis of an elliptic point on an elliptic curve includes: a memory for storing a first value including a plurality of digits; and a processor for executing a process including: obtaining a second value representing a point on the elliptic curve; calculating output values by using a predetermined equation, each digit of the first value, and the second value; determining whether at least one of the second value and the output values indicates a point of infinity; terminating the calculation when at least one of the second value and the output values indicates the point at infinity; and completing calculation when both the second value and the output values do not indicate the point at infinity, so as to obtain a result of the cryptographic calculation.
摘要翻译：一种用于基于椭圆曲线上的椭圆点执行加密计算的装置包括：存储器，用于存储包括多个数字的第一值; 以及用于执行处理的处理器，包括：获得表示所述椭圆曲线上的点的第二值; 通过使用预定方程，第一值的每个数字和第二值来计算输出值; 确定所述第二值和所述输出值中的至少一个是否指示无限点; 当所述第二值和所述输出值中的至少一个指示所述无限远点时终止所述计算; 并且当第二值和输出值都不表示无限远点时完成计算，以获得加密计算的结果。

63. 发明授权

US07639808B2 Elliptic curve cryptosystem apparatus, elliptic curve cryptosystem method, elliptic curve cryptosystem program and computer readable recording medium storing the elliptic curve cryptosystem program 有权
标题翻译：椭圆曲线密码系统装置，椭圆曲线密码系统方法，椭圆曲线密码系统程序和存储椭圆曲线密码系统程序的计算机可读记录介质
公开(公告)号：US07639808B2
公开(公告)日：2009-12-29
申请号：US11311590
申请日：2005-12-16
申请人： Tetsuya Izu , Kouichi Itoh , Masahiko Takenaka , Naoya Torii
发明人： Tetsuya Izu , Kouichi Itoh , Masahiko Takenaka , Naoya Torii
IPC分类号： H04K1/00 , H04L9/32
CPC分类号： G06F7/725 , G06F2207/7223 , G06F2207/7228 , H04L9/003 , H04L9/3066 , H04L2209/08
摘要： An elliptic curve cryptosystem apparatus performing an elliptic curve cryptosystem process has a coordinate transforming unit for transforming coordinates (X:Y:Z) on a point P on an elliptic curve over a finite field GF(p^m) to coordinates (r1×(X−s1):r2×(Y−s2):r3×(Z−s3)) (where, p is a prime number, m is an integer not less than 1, r1, r2 and r3 are integers not less than 1 and not larger than (p−1), s1, s2 and s3 are integer not less than 0 and not larger than (p−1), and a code “^” represents power), and a scalar multiplication operating unit for performing scalar multiplication on the point on the elliptic curve transformed by the coordinate transforming unit, wherein at least one of the parameters s1, s2 and s3 has a value other than 0. The apparatus can perform the scalar multiplication in the elliptic curve cryptosystem, with resistance to side channel attacks.
摘要翻译：执行椭圆曲线密码系统处理的椭圆曲线密码系统装置具有坐标变换单元，用于将有限域GF（p ^ m）上的椭圆曲线上的点P上的坐标（X：Y：Z）变换为坐标（r1x（X -s1）：r2x（Y-s2）：r3x（Z-s3））（其中，p是素数，m是不小于1的整数，r1，r2和r3是不小于1且不大于（p-1），s1，s2和s3是不小于0且不大于（p-1）的整数，代码“^”表示功率），以及标量乘法运算单元，用于对指向由坐标变换单元变换的椭圆曲线，其中参数s1，s2和s3中的至少一个具有不为0的值。该装置可以执行椭圆曲线密码系统中的标量乘法，具有抗侧信道攻击。

64. 发明授权

US07497296B2 All-wheel-drive motorcycle 失效
标题翻译：全轮摩托车
公开(公告)号：US07497296B2
公开(公告)日：2009-03-03
申请号：US11384387
申请日：2006-03-21
申请人： Masahiko Takenaka
发明人： Masahiko Takenaka
IPC分类号： B62M7/00
CPC分类号： B62M23/00 , B62M19/00
摘要： An all-wheel-drive vehicle in which flexibility in setting the diameter of a driven gear is increased. In an all-wheel-drive vehicle in which an engine drives a rear wheel and also drives a hydraulic pump, and oil pressure generated by the hydraulic pump is supplied to a hydraulic motor for driving a front wheel. A front wheel hub provided on the front wheel is formed into a cup-shaped hub provided with a recess portion covered by a cover. The hydraulic motor is supported by the cover. A drive gear is provided on an output shaft of the hydraulic motor and a driven gear is provided in the recess portion of the hub with the driven gear being provided on the side of an axle.
摘要翻译：一种全轮驱动车辆，其中设定从动齿轮的直径的灵活性增加。在其中发动机驱动后轮并驱动液压泵的全轮驱动车辆中，由液压泵产生的油压被供给到用于驱动前轮的液压马达。设置在前轮上的前轮毂形成为设置有被盖覆盖的凹部的杯形轮毂。液压马达由盖子支撑。驱动齿轮设置在液压马达的输出轴上，并且从动齿轮设置在毂的凹部中，从动齿轮设置在轴的一侧。

65. 发明申请

US20080256362A1 Method and apparatus for digital signature authentication, and computer product 有权
标题翻译：数字签名认证方法与设备，计算机产品
公开(公告)号：US20080256362A1
公开(公告)日：2008-10-16
申请号：US11984314
申请日：2007-11-15
申请人： Masahiko Takenaka , Tetsuya Izu , Takashi Yoshioka
发明人： Masahiko Takenaka , Tetsuya Izu , Takashi Yoshioka
IPC分类号： G06F9/06
CPC分类号： H04L9/3236 , G06F21/6254 , G06F21/645 , G06F2221/2151 , H04L9/3247 , H04L2209/08 , H04L2209/42
摘要： An apparatus for digital signature authentication includes a dividing unit that divides streaming data into plural pieces of partial data in a predetermined unit; a first creating unit that creates a hash value string including plural hash values corresponding to the pieces of partial data; a second creating unit that creates a first binary tree using the hash value string; and a third creating unit that creates a digital signature of a signer using a root value of the first binary tree.
摘要翻译：一种用于数字签名认证的装置，包括一个分割单元，它将流数据分成预定单位的多个部分数据; 第一创建单元，其创建包括与所述部分数据对应的多个哈希值的散列值串; 第二创建单元，其使用所述散列值字符串来创建第一二进制树; 以及第三创建单元，其使用第一二叉树的根值创建签名者的数字签名。

66. 发明授权

US07403965B2 Encryption/decryption system for calculating effective lower bits of a parameter for Montgomery modular multiplication 有权
标题翻译：加密/解密系统，用于计算Montgomery模数乘法的参数的有效低位
公开(公告)号：US07403965B2
公开(公告)日：2008-07-22
申请号：US10888991
申请日：2004-07-13
申请人： Kenji Mukaida , Masahiko Takenaka , Naoya Torii , Shoichi Masui
发明人： Kenji Mukaida , Masahiko Takenaka , Naoya Torii , Shoichi Masui
IPC分类号： G06F7/00
CPC分类号： G06F7/728
摘要： An arithmetic device for Montgomery modular multiplication which quickly calculates a parameter ND, the parameter ND satisfying R×R−1−N×ND=1 for an integer N and a radix R that is coprime to and greater than N, with a large number of effective lower bits. The device comprises an ND generator, a multiplication-accumulation (MAC) operator, and a sum data store. The ND generator produces effective lower bits of ND at a rate of k bits per clock cycle, with reference to lower k bits of a variable S, as well as to lower k bits of an odd positive integer N. The MAC operator multiplies the produced k-bit ND value by N and adds the resulting product to S. The sum data store stores the variable S, which is updated with the output of the MAC operator, with its bits shifted right by k bits, for use by the ND generator in the subsequent clock cycle.
摘要翻译：一种用于蒙哥马利模乘的运算装置，其快速计算参数ND，对于整数N满足RxR ^{-1 -NxND = 1的参数ND和与N并且大于N的基数R，大量有效的低位。该装置包括ND发生器，乘积累加（MAC）运算符和和数据存储。 ND发生器以每个时钟周期的k比特的速率产生有效的低位，参考变量S的低k位，以及降低奇数正整数N的k位。MAC算子将所产生的 k位ND值乘以N，并将所得到的乘积加到S中。和数据存储器存储用MAC运算符的输出更新的变量S，其位被向右移位k位，供ND生成器使用在随后的时钟周期。}

67. 发明申请

US20080005779A1 Computer-readable recording medium storing access rights management program, access rights management apparatus, and access rights management method 有权
标题翻译：存储访问权限管理程序，访问权限管理装置和访问权限管理方法的计算机可读记录介质
公开(公告)号：US20080005779A1
公开(公告)日：2008-01-03
申请号：US11595626
申请日：2006-11-09
申请人： Masahiko Takenaka , Souichi Okada , Takashi Yoshioka , Bintatsu Noda
发明人： Masahiko Takenaka , Souichi Okada , Takashi Yoshioka , Bintatsu Noda
IPC分类号： H04L9/00
CPC分类号： G06F21/6218 , H04L9/3226 , H04L2209/603
摘要： A computer-readable recording medium storing an access rights management program which is capable of safely managing the use of an electronic document with ease and efficiency. An access policy-storing device stores a first access policy containing information on a first distributee to which the electronic document is distributed, and information on second distributees, which is indicative of a range within which the first distributes is permitted to distribute the electronic document, as well as information on use rights that permit the second distributees to use the electronic document with a defined scope of authority. A storage device stores a distribution target indicative of the second distributees. When a distributes specifying request for permission to grant the use rights to a specific distributes is received from the first distributee, an access policy-confirming device refers to the distribution target to confirm whether or not the specific distributes is included in the second distributees. A registration device registers a second access policy associating the specific distributes with the information on the use rights, in said access policy-storing device. A use rights-confirming device refers to the second access policy to thereby permit the specific distributes to use the electronic document using the use rights, when a use request for permission of use of the electronic document is received from the specific distributes.
摘要翻译：一种存储访问权限管理程序的计算机可读记录介质，其能够以便利和高效地安全地管理电子文档的使用。访问策略存储装置存储包含关于分发电子文档的第一分发者的信息的第一访问策略和指示第一分发被允许分发电子文档的范围的关于第二分发者的信息，以及允许第二批次人员使用具有规定的权限范围的电子文件的使用权信息。存储装置存储指示第二分发者的分发目标。当从第一分发者接收到向特定分发者分配许可授权许可的指定请求时，访问策略确认装置参考分发目标来确认特定分发是否包括在第二分发者中。在所述访问策略存储设备中，注册设备将关联所述特定分发的第二访问策略与所述使用权限的信息相关联。使用权确认装置是指当从特定分发者接收到使用电子文档的使用请求时，使用权确认装置是指第二访问策略，从而允许特定分发者使用使用权利使用电子文档。

68. 发明申请

US20070050713A1 Digital document management system, digital document management method, and digital document management program 有权
标题翻译：数字文件管理系统，数字文件管理方法和数字文件管理程序
公开(公告)号：US20070050713A1
公开(公告)日：2007-03-01
申请号：US11585299
申请日：2006-10-18
申请人： Takashi Yoshioka , Masahiko Takenaka
发明人： Takashi Yoshioka , Masahiko Takenaka
IPC分类号： G06F17/00
CPC分类号： G06F17/24 , G06F17/2288 , G06F21/64 , G06Q10/10
摘要： Disclosed is a digital document management system and the like capable of guaranteeing that a partial correction has been made according to a proper procedure and achieving a third-party certification of the validity of the guarantee. A digital document management system that manages document information created in a digital form, comprising: a partial identification information generation section 51 that generates partial identification information that represents, in an identifiable manner, respective parts of the document information; a partial correction information generation section 52 that generates partial correction information which is information related to a correction history of a corrected part in the case where any correction has been required for the document information; and an original document information management section 40 that manages the document information, partial identification information, partial correction information, and prescribed policy information in an associated manner.
摘要翻译：公开了能够保证根据适当的程序进行部分校正并且实现对担保的有效性的第三方认证的数字文档管理系统等。一种管理以数字形式创建的文档信息的数字文档管理系统，包括：部分识别信息生成部分51，其生成以可识别的方式表示文档信息的相应部分的部分识别信息; 部分校正信息生成部分52，在对文档信息进行任何校正的情况下，生成作为校正部分的校正历史的信息的部分校正信息; 以及以相关联的方式管理文档信息，部分识别信息，部分校正信息和规定的策略信息的原始文档信息管理部分40。

69. 发明授权

US07065788B2 Encryption operating apparatus and method having side-channel attack resistance 有权
标题翻译：具有侧信道攻击阻力的加密操作装置和方法
公开(公告)号：US07065788B2
公开(公告)日：2006-06-20
申请号：US10278838
申请日：2002-10-24
申请人： Jun Yajima , Kouichi Itoh , Masahiko Takenaka , Naoya Torii
发明人： Jun Yajima , Kouichi Itoh , Masahiko Takenaka , Naoya Torii
IPC分类号： G06F1/24
CPC分类号： G06F7/723 , G06F7/728 , G06F2207/7238
摘要： Ciphertext X and a constant C having relationships C>p and C>q with respect to secret keys p and q are input, and correction values C−dp and C−dq (dp=d mod (p−1), dq=d mod (q−1)) are obtained. Then, the ciphertext X is multiplied by the constant C. A remainder operation using the secret key p or q as a remainder value is conducted with respect to the multiplication result. A modular exponentiation operation based on a Chinese remainder theorem is conducted with respect to the remainder operation result, and a correction operation using a correction value C−dp or C−dq is conducted. Thereafter, plaintext Y before being encrypted is calculated.
摘要翻译：输入密文X和关于秘密密钥p和q具有关系C> p和C> q的常数C，并且校正值C SUP和D D < （dp = d mod（p-1），dq = d mod（q-1））。然后，将密文X乘以常数C.使用秘密密钥p或q作为余数值的余数运算相对于相乘结果进行。对余数运算结果进行基于中文余数定理的模幂运算，使用校正值C -dp或C-Dq 的修正运算是进行。此后，计算加密前的明文Y。

70. 发明申请

US20050165876A1 Multiple-word multiplication-accumulation circuit and Montgomery modular multiplication-accumulation circuit 有权
标题翻译：多字乘法积累电路和蒙哥马利模积累电路
公开(公告)号：US20050165876A1
公开(公告)日：2005-07-28
申请号：US10898178
申请日：2004-07-26
申请人： Kenji Mukaida , Masahiko Takenaka , Naoya Torii , Shoichi Masui
发明人： Kenji Mukaida , Masahiko Takenaka , Naoya Torii , Shoichi Masui
IPC分类号： G06F7/52 , G06F7/544 , G06F7/72 , G09C1/00 , G06F7/38
CPC分类号： G06F7/728 , G06F7/5443
摘要： A multiple-word multiplication-accumulation circuit suitable for use with a single-port memory. The circuit is composed of a multiplication-accumulation (MAC) operator and surrounding registers. The MAC operator has multiplicand and multiplier input ports with different bit widths to calculate a sum of products of multiple-word data read out of a memory. The registers serve as buffer storage of multiple-word data to be supplied to individual input ports of the MAC operator. The amount of data supplied to the MAC operator in each clock cycle is adjusted such that total amount of data consumed and produced by the MAC operator in one clock cycle will be equal to or smaller than the maximum amount of data that the memory can transfer in one clock cycle. This feature enables the use of a bandwidth-limited single-port memory, without causing adverse effect on the efficiency of MAC operator usage.
摘要翻译：适用于单端口存储器的多字乘法积累电路。该电路由乘积（MAC）运算符和周围寄存器组成。 MAC运算符具有不同位宽的乘法器和乘法器输入端口，以计算从存储器读出的多个字数据的乘积之和。这些寄存器用作缓冲存储多字数据以提供给MAC操作员的各个输入端口。调整在每个时钟周期内提供给MAC运算符的数据量，使得MAC运算符在一个时钟周期内消耗和产生的数据总量将等于或小于存储器可以传输的最大数据量一个时钟周期。该功能使得能够使用带宽限制的单端口存储器，而不会对MAC操作者使用的效率造成不利影响。

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