专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09418245B2 Encryption processing device, encryption processing method, and program 有权
标题翻译：加密处理装置，加密处理方法和程序
公开(公告)号：US09418245B2
公开(公告)日：2016-08-16
申请号：US14002379
申请日：2012-02-20
申请人： Kyoji Shibutani , Toru Akishita , Takanori Isobe , Taizo Shirai , Harunaga Hiwatari , Atsushi Mitsuda
发明人： Kyoji Shibutani , Toru Akishita , Takanori Isobe , Taizo Shirai , Harunaga Hiwatari , Atsushi Mitsuda
IPC分类号： G06F21/72 , H04L9/06 , G09C1/00
CPC分类号： G06F21/72 , G09C1/00 , H04L9/0625 , H04L9/0631 , H04L2209/122
摘要： Included is an encryption processing unit configured to divide and input configuration bits of data to be data processed into a plurality of lines, and to repeatedly execute data conversion processing of data for each line. The encryption processing unit includes an F function execution unit to input data from one line configuring the plurality of lines and generate converted data, an XOR calculation unit to execute an XOR calculation with other lines of data corresponding to the output from the F function, an intermediate data storage register to store intermediate data during the process of generating converted data in the F function execution unit, and an inverse calculation executing unit to calculate input data regarding the F function execution unit on the basis of the data stored in the intermediate storage register.
摘要翻译：包括：加密处理单元，被配置为将要处理的数据的数据的配置位分割并输入到多行中，并重复执行每行的数据的数据转换处理。加密处理单元包括F功能执行单元，用于从构成多行的一行输入数据并生成转换数据; XOR计算单元，用于对与F函数的输出相对应的其他数据行执行异或运算，中间数据存储寄存器，用于在F函数执行单元中生成转换数据的处理过程中存储中间数据;以及逆计算执行单元，用于基于存储在中间存储寄存器中的数据来计算关于F函数执行单元的输入数据。

2. 发明申请

US20140223193A1 SIGNATURE VERIFICATION APPARATUS, SIGNATURE VERIFICATION METHOD, PROGRAM, AND RECORDING MEDIUM 有权
标题翻译：签名验证装置，签名验证方法，程序和记录介质
公开(公告)号：US20140223193A1
公开(公告)日：2014-08-07
申请号：US14239926
申请日：2012-07-19
申请人： Koichi Sakumoto , Taizo Shirai , Harunaga Hiwatari
发明人： Koichi Sakumoto , Taizo Shirai , Harunaga Hiwatari
IPC分类号： G06F21/60
CPC分类号： G06F21/602 , H04L9/3093 , H04L9/3252
摘要： A signature verification apparatus including a signature acquisition unit configured to acquire a digital signature including first information generated based on a pair of multi-order multivariate polynomials F=(f1, . . . , fm) defined in a ring K, a signature key s which is an element of a set Kn, and a document M and a plurality of pieces of second information for verifying that the first information is generated using the signature key s based on the data M, the pair of multi-order multivariate polynomials F, and vectors y=(f1(s), . . . , fm(s)), and a signature verification unit configured to verify legitimacy of the document M by confirming whether or not the first information is restorable using the plurality of pieces of second information included in the digital signature. The pair of multivariate polynomials F and the vectors y are public keys.
摘要翻译：一种签名验证装置，包括签名获取单元，被配置为获取包括基于在环K中定义的一对多阶多项多项式F =（f1，...，fm）生成的第一信息的数字签名，签名密钥s 其是组合Kn的元素，以及文档M和多条第二信息，用于基于数据M验证使用签名密钥s生成第一信息，该多对多元多项式F，和矢量y =（f1（s），...，fm（s）），以及签名验证单元，被配置为通过使用多个第二个第二个来确认第一信息是否可恢复来验证文档M的合法性包含在数字签名中的信息。多对多项式F和矢量y是公钥。

3. 发明申请

US20140215222A1 INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND PROGRAM 有权
标题翻译：信息处理设备，信息处理方法和程序
公开(公告)号：US20140215222A1
公开(公告)日：2014-07-31
申请号：US14239861
申请日：2012-08-14
申请人： Koichi Sakumoto , Taizo Shirai , Harunaga Hiwatari , Kazuya Kamio
发明人： Koichi Sakumoto , Taizo Shirai , Harunaga Hiwatari , Kazuya Kamio
IPC分类号： H04L9/32 , H04L9/30
CPC分类号： H04L9/3247 , H04L9/3093 , H04L9/3252
摘要： Provided an information processing apparatus including a number generation unit configured to generate numbers used in coefficients of terms included in a pair of multi-order multivariate polynomials F=(f1, . . . , fm), using a predetermined function, from information shared between entities executing an algorithm of a public-key authentication scheme or a digital signature scheme that uses a public key including the pair of multi-order multivariate polynomials F, and an allocation unit configured to allocate the numbers generated by the number generation unit to the coefficients of the multi-order multivariate polynomials for which the pair of multi-order multivariate polynomials F are included in constituent elements.
摘要翻译：提供一种信息处理设备，包括：数字生成单元，被配置为使用预定函数从包括在一对多阶多项多项式F =（f1，...，fm）中的项的系数中使用的数字，执行公钥认证方案的算法的实体或使用包括所述一对多阶多项式F的公钥的数字签名方案，以及分配单元，被配置为将由所述数量生成单元生成的数量分配给所述系数的多阶多元多项式，其中一对多阶多元多项式F包括在组成元素中。

4. 发明申请

US20130089201A1 AUTHENTICATION DEVICE, AUTHENTICATION METHOD, AND PROGRAM 有权
标题翻译：认证设备，认证方法和程序
公开(公告)号：US20130089201A1
公开(公告)日：2013-04-11
申请号：US13704658
申请日：2011-07-12
申请人： Koichi Sakumoto , Taizo Shirai , Harunaga Hiwatari
发明人： Koichi Sakumoto , Taizo Shirai , Harunaga Hiwatari
IPC分类号： G06F21/60
CPC分类号： H04L9/3221 , H04L9/0861 , H04L9/3093 , H04L9/3239 , H04L9/3271
摘要： Provided is an authentication device including a key holding unit for holding L (L≧2) secret keys si (i=1 to L) and L public keys yi that satisfy yi=F(si) with respect to a set F of multivariate polynomials of n-th order (n≧2), and an interactive protocol execution unit for performing, with a verifier, an interactive protocol for proving knowledge of (L−1) secret keys si that satisfy yi=F(si). The interactive protocol execution unit includes a challenge reception unit for receiving L challenges Chi from the verifier, a challenge selection unit for arbitrarily selecting (L−1) challenges Chi from the L challenges Chi received by the challenge reception unit, a response generation unit for generating, by using the secret keys si, (L−1) responses Rspi respectively for the (L−1) challenges Chi selected by the challenge selection unit, and a response transmission unit for transmitting the (L−1) responses Rspi generated by the response generation unit to the verifier. Representative Drawing
摘要翻译：提供了一种认证装置，其包括用于相对于多元多项式的集合F保持L（L≥2）个秘密密钥si（i = 1〜L）和满足yi = F（si）的L个公钥yi的密钥保持单元（n≥2）的交互式协议执行单元，以及交互协议执行单元，用于与验证者一起执行用于证明满足yi = F（si）的（L-1）个秘密密钥si的知识的交互协议。交互式协议执行单元包括用于从验证器接收L个挑战的挑战接收单元，用于从由挑战接收单元接收到的L个挑战中任意选择（L-1）挑战Chi的挑战选择单元，响应生成单元，通过使用秘密密钥si，对于由挑战选择单元选择的（L-1）个挑战Chi分别使用秘密密钥si，（L-1）响应Rspi，以及响应发送单元，用于发送由响应生成单元到验证者。代表画

5. 发明授权

US08396210B2 Cryptographic processing apparatus and cryptographic processing method, and computer program 有权
标题翻译：加密处理装置和加密处理方法以及计算机程序
公开(公告)号：US08396210B2
公开(公告)日：2013-03-12
申请号：US12439250
申请日：2007-08-29
申请人： Kyoji Shibutani , Taizo Shirai , Toru Akishita , Shiho Moriai
发明人： Kyoji Shibutani , Taizo Shirai , Toru Akishita , Shiho Moriai
IPC分类号： H04L29/06
CPC分类号： H04L9/002 , G09C1/00 , H04L9/0625 , H04L2209/122 , H04L2209/125
摘要： A configuration that efficiently executes cryptographic processing to which a plurality of different F-functions are applied is provided. In a configuration that executes cryptographic processing by performing round operations to which different F-functions are selectively applied, a plurality of F-function correspondence tables, each corresponding to one of the F-functions, in which input values and output values or intermediate values are associated with each other are stored in a memory; in accordance with a prescribed cryptographic processing sequence, addresses corresponding to F-functions for the respective rounds are applied to read F-function correspondence tables from the memory; and output values or intermediate values for input values are acquired on the basis of reference to the tables to obtain data transformation results in accordance with the respective F-functions.
摘要翻译：提供了有效地执行应用了多个不同的F功能的加密处理的配置。在通过执行选择性地应用了不同的F功能的循环操作来执行加密处理的配置中，分别对应于F功能之一的多个F函数对应表，其中输入值和输出值或中间值相互关联存储在存储器中; 根据规定的密码处理顺序，对应于各轮的F函数的地址被应用于从存储器读取F函数对应表; 并且基于参考表获取输入值的输出值或中间值，以根据各自的F函数获得数据变换结果。

6. 发明授权

US08380683B2 Data conversion device, data conversion method, and program 有权
标题翻译：数据转换装置，数据转换方法和程序
公开(公告)号：US08380683B2
公开(公告)日：2013-02-19
申请号：US13059643
申请日：2009-08-25
申请人： Taizo Shirai , Kyoji Shibutani , Shiho Moriai , Toru Akishita , Tetsu Iwata
发明人： Taizo Shirai , Kyoji Shibutani , Shiho Moriai , Toru Akishita , Tetsu Iwata
IPC分类号： G06F17/30
CPC分类号： H04L9/0643 , H04L2209/12 , H04L2209/20 , H04L2209/30 , H04L2209/38
摘要： There is realized a data conversion device that performs generation of a hash value with improved analysis resistance and a high degree of safety. There are provided a stirring processing section performing a data stirring process on input data; and a compression processing section performing a data compression process on input data including data segments which are divisions of message data, the message data being a target of a data conversion. Part of multi-stage compression subsections is configured to perform a data compression process based on both of output of the stirring processing section and the data segments in the message data. There is provided such a configuration that the stirring process is executed at least on fixed timing of a compression processing round of plural rounds and thus, there is realized a data conversion device that performs generation of a hash value with improved analysis resistance and a high degree of safety.
摘要翻译：实现了一种数据转换装置，其执行具有改进的分析电阻和高度安全性的哈希值的产生。提供了一种对输入数据执行数据搅拌处理的搅拌处理部分; 以及对包括作为消息数据的划分的数据段的输入数据执行数据压缩处理的压缩处理部，所述消息数据是数据转换的目标。多级压缩子部分被配置为基于搅动处理部分的输出和消息数据中的数据段两者执行数据压缩处理。提供了这样的结构，至少在多轮的压缩处理轮的固定定时执行搅拌处理，因此实现了一种数据转换装置，其执行具有改进的分析电阻和高度的散列值的产生的安全。

7. 发明授权

US08340282B2 Information processing apparatus 有权
标题翻译：信息处理装置
公开(公告)号：US08340282B2
公开(公告)日：2012-12-25
申请号：US11909544
申请日：2006-03-02
申请人： Taizo Shirai
发明人： Taizo Shirai
IPC分类号： H04L29/06
CPC分类号： H04L9/0618 , H04L9/002 , H04L2209/24
摘要： A high-security cryptanalysis-resistant cryptographic processing apparatus and a cryptographic processing method are provided. A Feistel common key block cipher is produced by repeatedly performing an SPN-type F-function including a nonlinear transformation part and a linear transformation part over a plurality of rounds. In each round, a linear transformation process is performed according to an F-function using a matrix determined so as to satisfy a relatively loose constraint whereby high resistance to differential attacks and/or linear attacks is achieved. The relatively loose constraint allows an increase in the number of candidates for usable matrices, and it is possible to maintain the number of active S-boxes to a sufficiently large level. This makes it possible to increase the minimum number of active S-boxes, which is one of measures indicating the degree of robustness of ciphers, and thus it is possible to realize an algorithm of encrypting data in a highly secure manner so that high resistance to attacks is achieved.
摘要翻译：提供了一种高安全性密码分析加密处理装置和密码处理方法。通过在多个轮次中重复执行包括非线性变换部分和线性变换部分的SPN型F函数来产生Feistel公共密钥块密码。在每一轮中，使用确定为满足相对松散的约束的矩阵，根据F函数执行线性变换处理，从而实现对差分攻击和/或线性攻击的高抵抗力。相对松散的约束允许可用矩阵的候选数量的增加，并且可以将活动的S盒的数量保持在足够大的水平。这使得可以增加活动的S盒的最小数量，这是指示密码的鲁棒性程度的度量之一，因此可以以高度安全的方式实现加密数据的算法，使得高抵抗攻击实现。

8. 发明授权

US08306217B2 Cryptographic processing apparatus and cryptographic processing method, and computer program 有权
标题翻译：加密处理装置和加密处理方法以及计算机程序
公开(公告)号：US08306217B2
公开(公告)日：2012-11-06
申请号：US13206803
申请日：2011-08-10
申请人： Taizo Shirai , Kyoji Shibutani
发明人： Taizo Shirai , Kyoji Shibutani
IPC分类号： H04K1/00 , H04L9/32
CPC分类号： H04L9/06 , H04L9/002 , H04L9/0625 , H04L2209/122
摘要： There is provided a highly secure cryptographic processing apparatus and method where an analysis difficulty is increased. In a Feistel type common key block encrypting process in which an SPN type F function having a nonlinear conversion section and a linear conversion section is repeatedly executed a plurality of rounds. The linear conversion process of an F function corresponding to each of the plurality of rounds is performed as a linear conversion process which employs an MDS (Maximum Distance Separable) matrix, and a linear conversion process is carried out which employs a different MDS matrix at least at each of consecutive odd number rounds and consecutive even number rounds. This structure makes it possible to increase the minimum number (a robustness index against a differential attack in common key block encryption) of the active S box in the entire encrypting function.
摘要翻译：提供了一种高度安全的加密处理装置和方法，其中分析难度增加。在其中具有非线性转换部分和线性转换部分的SPN型F函数被重复执行多次的Feistel型公共密钥块加密处理中。执行与多个轮次中的每一个对应的F函数的线性转换处理作为采用MDS（最大距离可分离）矩阵的线性转换处理，并且执行线性转换处理，其至少采用不同的MDS矩阵在连续的奇数轮和连续偶数轮中的每一个。该结构使得可以增加整个加密功能中的活动S盒的最小数量（针对公共密钥块加密中的差分攻击的鲁棒性指数）。

9. 发明申请

US20120191986A1 CRYPTOGRAPHIC PROCESSING APPARATUS AND CRYPTOGRAPHIC PROCESSING METHOD, AND COMPUTER PROGRAM 有权
标题翻译：图形处理设备和图形处理方法以及计算机程序
公开(公告)号：US20120191986A1
公开(公告)日：2012-07-26
申请号：US13436223
申请日：2012-03-30
申请人： Kyoji SHIBUTANI , Taizo Shirai , Toru Akishita , Shiho Moriai
发明人： Kyoji SHIBUTANI , Taizo Shirai , Toru Akishita , Shiho Moriai
IPC分类号： G06F21/22
CPC分类号： H04L9/002 , H04L9/0625 , H04L2209/122 , H04L2209/24
摘要： In extended Feistel type common key block cipher processing, a configuration is realized in which an encryption function and a decryption function are commonly used. In a cryptographic processing configuration to which an extended Feistel structure in which the number of data lines d is set to an integer satisfying d≧3 is applied, involution properties, that is, the application of a common function to encryption processing and decryption processing, can be achieved. With a configuration in which round keys are permuted or F-functions are permuted in the decryption processing, processing using a common function can be performed by setting swap functions for the encryption processing and the decryption processing to have the same processing style.
摘要翻译：在扩展的Feistel型通用密钥块密码处理中，实现了通常使用加密功能和解密功能的配置。在将数据线数d设定为满足d≥3的整数的扩展Feistel结构的密码处理配置中，应用了加密处理和解密处理中的共同功能的卷积特性，可以实现。通过在解密处理中将轮密钥置换或F功能配置的配置，可以通过将用于加密处理和解密处理的交换功能设置为具有相同的处理风格来执行使用公共功能的处理。

10. 发明申请

US20110238636A1 DATA CONVERSION DEVICE, DATA CONVERSION METHOD, AND PROGRAM 有权
标题翻译：数据转换设备，数据转换方法和程序
公开(公告)号：US20110238636A1
公开(公告)日：2011-09-29
申请号：US13059643
申请日：2009-08-25
申请人： Taizo Shirai , Kyoji Shibutani , Shiho Moriai , Toru Akishita , Tetsu Iwata
发明人： Taizo Shirai , Kyoji Shibutani , Shiho Moriai , Toru Akishita , Tetsu Iwata
IPC分类号： G06F17/00
CPC分类号： H04L9/0643 , H04L2209/12 , H04L2209/20 , H04L2209/30 , H04L2209/38
摘要： There is realized a data conversion device that performs generation of a hash value with improved analysis resistance and a high degree of safety. There are provided a stirring processing section performing a data stirring process on input data; and a compression processing section performing a data compression process on input data including data segments which are divisions of message data, the message data being a target of a data conversion. Part of multi-stage compression subsections is configured to perform a data compression process based on both of output of the stirring processing section and the data segments in the message data. There is provided such a configuration that the stirring process is executed at least on fixed timing of a compression processing round of plural rounds and thus, there is realized a data conversion device that performs generation of a hash value with improved analysis resistance and a high degree of safety.
摘要翻译：实现了一种数据转换装置，其执行具有改进的分析电阻和高度安全性的哈希值的产生。提供了一种对输入数据执行数据搅拌处理的搅拌处理部分; 以及对包括作为消息数据的划分的数据段的输入数据执行数据压缩处理的压缩处理部，所述消息数据是数据转换的目标。多级压缩子部分被配置为基于搅动处理部分的输出和消息数据中的数据段两者执行数据压缩处理。提供了这样的结构，至少在多轮的压缩处理轮的固定定时执行搅拌处理，因此实现了一种数据转换装置，其执行具有改进的分析电阻和高度的散列值的产生的安全。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式