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。

公开(公告)号：US08667302B2

公开(公告)日：2014-03-04

申请号：US12888553

申请日：2010-09-23

申请人： Takashi Yoshioka ,  Masahiko Takenaka ,  Fumitsugu Matsuo ,  Fumiaki Chiba

发明人： Takashi Yoshioka ,  Masahiko Takenaka ,  Fumitsugu Matsuo ,  Fumiaki Chiba

IPC分类号： G06F21/24

CPC分类号： G01N21/93 ,  G01N21/9501 ,  G01N2021/8861 ,  H04L9/3247 ,  H04N5/77

摘要： A signature generating device includes a receiving unit that receives a sequence of data; a summary data generating unit that generates summary data of the data upon reception of each of the data by the receiving unit; an obtaining unit that obtains, when the number of data included in a sequence of the generated summary data reaches a given number, the sequence of the summary data as a block; a setting unit that sets, as a signature subject, a current block constituted by the sequence of the summary data, and the summary data selected from at least one block contiguous to the current block; a digital signature generating unit that generates a digital signature concerning data summarized for the current block; and a sending unit that sends the generated digital signature, the signature subject associated with the digital signature, and the data summarized for the current block.

摘要翻译： 签名产生装置包括：接收单元，其接收数据序列; 汇总数据生成单元，其通过接收单元接收到每个数据时生成数据的汇总数据; 获取单元，当所生成的汇总数据的序列中包括的数据的数量达到给定的数量时，获得作为块的汇总数据的序列; 设置单元，其将签名对象设置为由所述汇总数据的序列构成的当前块以及从与所述当前块相邻的至少一个块中选择的汇总数据; 数字签名生成单元，生成关于当前块的总结的数据的数字签名; 以及发送单元，其发送生成的数字签名，与数字签名相关联的签名主体以及针对当前块总结的数据。

公开(公告)号：US08638927B2

公开(公告)日：2014-01-28

申请号：US12886051

申请日：2010-09-20

申请人： Masahiko Takenaka ,  Kouichi Itoh

发明人： Masahiko Takenaka ,  Kouichi Itoh

IPC分类号： H04K1/00

CPC分类号： G06F7/723 ,  G06F2207/7242 ,  H04L9/003 ,  H04L9/302 ,  H04L2209/127

摘要： 401 stores, in 302, key d′ obtained by subtracting random number 2r held in 201 from key d held in 105. When an operation starts, the values “−C” and “−C2” are calculated respectively, and the resultant values are stored in a multiplication table memory 205 together with value “C”. In a first operation cycle, 107 selects and outputs an intermediate value 108 held in an in-operation data register 103, and thereby makes a modular-multiplication operation circuit 104 perform squaring. In the second operation cycle, 107 selects and outputs one of three values held in 205 in accordance with the combination of key bit value d′i and random number bit value ri, and thereby makes the modular-multiplication operation circuit 104 perform multiplication. Thereby, a cryptographic processing device that requires a short operation time period, small circuit scale, and has sufficient security can be realized.

摘要翻译： 401在302中存储通过从保持在105中的密钥d减去在201中保留的随机数2r获得的密钥d'。当操作开始时，分别计算值“-C”和“-C2”，并且得到的值为 与值“C”一起存储在乘法表存储器205中。 在第一操作周期中，107选择并输出保持在工作数据寄存器103中的中间值108，从而使得乘法运算电路104进行平方。 在第二操作周期中，107根据密钥位值d i和随机数位值ri的组合来选择并输出保持在205中的三个值之一，从而使乘法运算电路104进行乘法运算。 因此，可以实现需要短操作时间段，小电路规模并且具有足够安全性的密码处理装置。

公开(公告)号：US08369516B2

公开(公告)日：2013-02-05

申请号：US12889096

申请日：2010-09-23

申请人： Kouichi Itoh ,  Souichi Okada ,  Masahiko Takenaka

发明人： Kouichi Itoh ,  Souichi Okada ,  Masahiko Takenaka

IPC分类号： G06F21/00

CPC分类号： H04L9/0631 ,  H04L9/003 ,  H04L2209/046 ,  H04L2209/08 ,  H04L2209/122

摘要： A common key block encryption apparatus for performing a nonlinear transformation with a multiplication executed in a binary field or a composite field includes a computing unit to execute a computation other than the nonlinear transformation with fixed value masked input data obtained by XORing input data with a fixed mask value, an XOR operation circuit to transform all input data into fixed value masked input data by XORing the input data with a fixed mask value and to transform the data into random value masked input data by XORing the input data with a random mask value in the multiplication, a multiplier to execute a multiplication based on the random value masked input data output from the XOR operation circuit, and a random value mask-to-fixed mask value transformation circuit to again transform the random value masked output data into fixed value masked output data and to output the data.

摘要翻译： 用于通过在二进制字段或复合字段中执行的乘法执行非线性变换的公共密钥块加密装置包括：计算单元，用于执行非线性变换以外的计算，该固定值掩码输入数据通过将具有固定值的输入数据进行异或 掩模值，XOR运算电路，通过用固定的掩码值对输入数据进行异或，将所有输入数据变换为固定值掩码输入数据，并通过将输入数据以随机掩码值进行异或来将数据变换为随机值屏蔽输入数据 乘法，乘法器，用于根据从异或运算电路输出的随机值屏蔽输入数据执行乘法，以及随机值掩码到固定掩码值变换电路，以将随机值屏蔽输出数据再次转换为固定值掩码 输出数据并输出数据。

公开(公告)号：US07971673B2

公开(公告)日：2011-07-05

申请号：US12567247

申请日：2009-09-25

申请人： Taiki Sasage ,  Masahiko Takenaka

发明人： Taiki Sasage ,  Masahiko Takenaka

IPC分类号： B62D61/02

CPC分类号： B62M7/12 ,  B62K2202/00 ,  B62K2204/00

摘要： A saddle-ride type electric vehicle includes an electric motor for generates power for rotationally driving a rear wheel. Foot rests are provided for an occupant seated on an occupant seat. A battery is disposed in a space S surrounded by a down frame which is coupled to a head pipe or to a front end of a main frame and which extends downwardly, pivot frames, and the main frame. Steps disposed to both sides of the battery in planar view are provided to front ends of a pair of left and right step frames coupled to lower portion of the pivot frames, the step frames extending forward and overlapping a rear portion of the battery in planar view. The battery is wider in an area adjacent to the head pipe as compared to the width of the battery in an area adjacent to the steps.

摘要翻译： 鞍式电动车包括用于产生用于旋转驱动后轮的动力的电动马达。 为乘坐座椅上的乘员提供脚踏。 电池设置在由下框架围绕的空间S中，该下框架联接到头管或主框架的前端，并且向下延伸，枢转框架和主框架。 设置在平面视图中的电池两侧的台阶设置在耦合到枢转框架的下部的一对左右步进框架的前端，台阶框在平面图中向前延伸并与电池的后部重叠 。 与邻近台阶的区域中的电池的宽度相比，电池在与头管相邻的区域中较宽。

公开(公告)号：US20100031055A1

公开(公告)日：2010-02-04

申请号：US12560222

申请日：2009-09-15

申请人： Kazuyoshi Furukawa ,  Kouichi Itoh ,  Masahiko Takenaka

发明人： Kazuyoshi Furukawa ,  Kouichi Itoh ,  Masahiko Takenaka

IPC分类号： H04L9/00 ,  H04L9/28 ,  G06F7/38

CPC分类号： G06F7/723 ,  G06F7/728 ,  G06F2207/7271 ,  H04L9/004 ,  H04L9/302 ,  H04L9/3066

摘要： A cryptographic processing device, comprising: a storage unit; initial setting unit for setting a value to be stored in the storage unit; Montgomery modular multiplication operation unit for performing a Montgomery modular multiplication operation plural times for a value set by the initial setting unit; and fault attack detection unit for determining whether or not a fault attack occurred for each of at least some parts of the Montgomery modular multiplication operations performed plural times.

摘要翻译： 一种加密处理装置，包括：存储单元; 初始设定单元，用于设定存储在存储单元中的值; 蒙哥马利乘法运算单元，用于对由初始设定单元设定的值进行多次蒙哥马利乘法运算; 以及故障攻击检测单元，用于确定多次执行的蒙哥马利乘法运算的至少一些部分中是否发生故障攻击。

公开(公告)号：US20100023571A1

公开(公告)日：2010-01-28

申请号：US12218060

申请日：2008-07-11

申请人： Kazuyoshi Furukawa ,  Masahiko Takenaka

发明人： Kazuyoshi Furukawa ,  Masahiko Takenaka

IPC分类号： G06F7/38

CPC分类号： G06F7/728

摘要： REDC (A*B) is calculated for the values A and B by using a Montgomery's algorithm REDC. The part related to the A*B is performed by the three-input two-output product-sum calculation circuit. One digit ai of the value A, one digit bj of the value B and a carry value c1 are input to the product-sum calculation circuit, and ai*bj+c1 is calculated thereat. The higher-order digit of the r-adic two-digit of the calculation result is used as the carry value c1, and the lower digit is used for a later calculation. Further, one digit ni of a modulo N for the REDC, a predetermined value m and a carry value c2 are input into the product-sum calculation circuit, and n*ni+c2 is calculated thereat. The higher-order digit is used as the carry value c2, and the lower digit is used for a later calculation.

摘要翻译： 通过使用蒙哥马利的算法REDC计算值A和B的REDC（A * B）。 与A * B相关的部分由三输入双输出积和计算电路进行。 值A的一位数ai，值B的一位数bj和进位值c1被输入到乘积和计算电路，并且计算ai * bj + c1。 将计算结果的r-adic两位数的高阶数字用作进位值c1，将下位数用于后续计算。 此外，对于REDC，模N的一位数ni，预定值m和进位值c2被输入到乘积和计算电路中，并且在那里计算n * ni + c2。 高位数字用作进位值c2，下位数用于后续计算。

公开(公告)号：US20090003598A1

公开(公告)日：2009-01-01

申请号：US11941663

申请日：2007-11-16

申请人： Kouichi Itoh ,  Souichi Okada ,  Masahiko Takenaka

发明人： Kouichi Itoh ,  Souichi Okada ,  Masahiko Takenaka

IPC分类号： H04L9/20

CPC分类号： H04L9/003 ,  H04L9/0631 ,  H04L2209/046 ,  H04L2209/12

摘要： The first route selection device re-arrays a plurality of extended key mask values at random according to the value of a random number generated by a random number generation device. An extended key operation device generates an exclusive logical OR of a plurality of the re-arrayed extended key mask values, a data string representing extended key and an input data string. The second route selection device re-arrays the data string of the exclusive logical OR by performing a re-array conversely with the first route selection device according to the value of the random number. A non-linear conversion device applies non-linear conversion to the re-arrayed data string and outputs a data string masked by a plurality of non-linear conversion mask values. The third route selection device re-arrays the masked data string by performing the same re-array as the first route selection device according to the value of the random number.

摘要翻译： 第一路由选择装置根据由随机数生成装置生成的随机数的值，随机地重新排列多个扩展密钥掩码值。 扩展密钥操作装置生成多个重新排列的扩展密钥掩码值的异或逻辑，表示扩展密钥的数据串和输入数据串。 第二路由选择装置通过根据随机数的值与第一路由选择装置相反地执行重排阵列来重新排列异或逻辑OR的数据串。 非线性转换装置对重新排列的数据串应用非线性转换，并输出由多个非线性转换掩码值掩蔽的数据串。 第三路由选择装置通过根据随机数的值执行与第一路由选择装置相同的重新阵列来重新排列被掩蔽的数据串。

公开(公告)号：US07360620B2

公开(公告)日：2008-04-22

申请号：US10665245

申请日：2003-09-18

申请人： Masahiko Takenaka ,  Hideki Hayashi

发明人： Masahiko Takenaka ,  Hideki Hayashi

IPC分类号： B60K5/00

CPC分类号： B62K11/10 ,  B62K2202/00

摘要： In a low floor type vehicle 10, a banking angle θ1 of a longitudinal V-type engine 100 mounted below a low floor is set to an angle equal to or exceeding approximately 90°. The V-type engine is arranged with a bisector L1 of the banking angle directed toward a head pipe 21 of a body frame 20. The body frame is composed of a pair of right and left upper frames 22 extended backward and downward from the head pipe and a pair of right and left down frames 23 extended downward from the head pipe and coupled to the front of a crankcase 104 of the V-type engine and is a diamond type frame from which the V-type engine can be suspended.

摘要翻译： 在低地板式车辆10中，安装在低地板下方的纵向V型发动机100的行程角θ1被设定为等于或超过大约90°的角度。 V型发动机布置有银行角的平分线L 1指向主体框架20的头管21。 主体框架由从头管向后和向后延伸的一对左右上框架22和从头管向下延伸的一对左右下框架23组成，并且联接到曲轴箱104的前部 V型发动机，是可以悬挂V型发动机的菱形框架。

公开(公告)号：US20060276206A1

公开(公告)日：2006-12-07

申请号：US11247333

申请日：2005-10-12

申请人： Shinichi Shiotsu ,  Isamu Yamada ,  Satoshi Inano ,  Kouichi Yasaki ,  Akira Itasaki ,  Atsushi Sakai ,  Masahiko Takenaka ,  Takanao Ochiai

发明人： Shinichi Shiotsu ,  Isamu Yamada ,  Satoshi Inano ,  Kouichi Yasaki ,  Akira Itasaki ,  Atsushi Sakai ,  Masahiko Takenaka ,  Takanao Ochiai

IPC分类号： H04Q7/20

CPC分类号： G06K7/0008 ,  G06K19/0723

摘要： An information access system comprises a reader/writer for continually transmitting an ID request signal at a first frequency and being continuously ready to receive an RF signal at a second frequency, and an active contactless information storage device having a receiver for sensing a carrier of an RF signal at the first frequency, and a transmitter for transmitting a response signal at the second frequency when the ID request signal is received. When the receiver senses a carrier of an RF signal at the first frequency in a particular predetermined period, the receiver receives further the ID request signal, and, in response to the ID request signal, the transmitter transmits a response signal at the second frequency carrying an ID of the storage device stored. In the carrier sensing, the controller causes the receiver to be in an active state and the transmitter to be in an inactive state in the predetermined periods. When the receiver attempts to sense a carrier of the RF signal at the first frequency in a particular predetermined period but detects no carrier, the controller controls the receiver and the transmitter to maintain the inactive state during a sleep period between the particular predetermined period and the subsequent predetermined period.

摘要翻译： 一种信息访问系统，包括：读写器，用于以第一频率连续发送ID请求信号，并且连续准备好接收第二频率的RF信号;以及主动非接触信息存储装置，其具有用于感测 RF信号，以及发送器，用于当接收到ID请求信号时以第二频率发送响应信号。 当接收机在特定预定时间段内以第一频率感测RF信号的载波时，接收机进一步接收ID请求信号，并且响应于ID请求信号，发射机以第二频率载波发送响应信号 存储设备的ID。 在载波侦听中，控制器使接收机处于活动状态，并且发射机在预定时段内处于非活动状态。 当接收机尝试在特定预定周期内以第一频率感测RF信号的载波，但是检测无载波时，控制器控制接收机和发射机在特定预定周期和 随后的预定期间。