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1. 发明授权

US08924448B2 Arithmetic device, method, and program product 有权
标题翻译：算术设备，方法和程序产品
公开(公告)号：US08924448B2
公开(公告)日：2014-12-30
申请号：US13422018
申请日：2012-03-16
申请人： Taichi Isogai , Kenichiro Furuta , Hirofumi Muratani , Kenji Ohkuma , Tomoko Yonemura , Yoshikazu Hanatani , Atsushi Shimbo , Hanae Ikeda , Yuichi Komano
发明人： Taichi Isogai , Kenichiro Furuta , Hirofumi Muratani , Kenji Ohkuma , Tomoko Yonemura , Yoshikazu Hanatani , Atsushi Shimbo , Hanae Ikeda , Yuichi Komano
IPC分类号： G06F7/58 , G06F7/00 , H04L9/28 , H04L9/00 , G06F7/72 , H04L9/30
CPC分类号： H04L9/003 , G06F7/725 , H04L9/3013
摘要： An arithmetic device includes an input unit inputting data that are elements of a group; a converting unit is configured, when the input data are in a second representation, to convert the input data into a first representation and to perform arithmetic operation on the converted first representation using an operand in the first representation in which at least one subcomponent is a zero element to convert the converted first representation into first converted data expressed in the first representation, and when the input data are in the first representation, to perform arithmetic operation on the input data using the operand in the first representation in which at least one subcomponent is a zero element to convert the input data into second converted data expressed in the first representation; and an operating unit that performs arithmetic processing on the first or the second converted data using secret information.
摘要翻译：运算装置包括输入单元，输入作为组的要素的数据; 配置转换单元，当输入数据处于第二表示时，将输入数据转换为第一表示，并且使用第一表示中的操作数对转换的第一表示执行算术运算，其中至少一个子组件是零元素以将转换后的第一表示转换为以第一表示表示的第一转换数据，以及当输入数据处于第一表示时，使用第一表示中的操作数对输入数据执行算术运算，其中至少一个子组件是将输入数据转换成以第一表示表示的第二转换数据的零元素; 以及操作单元，其使用秘密信息对所述第一或第二转换数据执行算术处理。

2. 发明授权

US08533243B2 Representation converting apparatus, arithmetic apparatus, representation converting method, and computer program product 失效
标题翻译：表示转换装置，运算装置，表示转换方法和计算机程序产品
公开(公告)号：US08533243B2
公开(公告)日：2013-09-10
申请号：US12397648
申请日：2009-03-04
申请人： Tomoko Yonemura , Hirofumi Muratani , Kenji Ohkuma , Hanae Ikeda , Taichi Isogai , Kenichiro Furuta , Yoshikazu Hanatani
发明人： Tomoko Yonemura , Hirofumi Muratani , Kenji Ohkuma , Hanae Ikeda , Taichi Isogai , Kenichiro Furuta , Yoshikazu Hanatani
IPC分类号： G06F7/00 , G06F15/00
CPC分类号： G06F17/10
摘要： When converting an affine representation representing a 2r-th degree algebraic torus T2r(Fq) (r is a prime number, and q is an integer) to a projective representation representing a quadratic algebraic torus T2(Fq^r), a representation converting apparatus acquires member (c0, c1, . . . , cr-2), (ci is a member of a finite field Fq, where 0≦i≦r−2) of a 2r-th degree algebraic torus T2r(Fq) represented by the affine representation. The apparatus performs a multiplication operation on the acquired member. The multiplication operation is determined by a condition under which a member of a quadratic algebraic torus T2(Fq^r) is included in the 2r-th degree algebraic torus T2r(Fq), a modulus and a base of a quadratic extension, and a modulus and a base of an r-th degree extension. The representation converting apparatus then performs an addition and subtraction operation determined by the condition, the moduli, and the bases.
摘要翻译：当表示代表二次代数环面T2（Fq ^ r）的投影表示将表示2r次代数圆环T2r（Fq）（r是素数，q是整数）的仿射表示转换为表示转换装置获取成员（c0，c1，...，cr-2），（ci是有限域Fq的成员，其中0 @ i @ r-2）由2r代数圆环T2r（Fq）仿射表示。该装置对获取的成员进行乘法运算。乘法运算由二次代数圆环T2（Fq ^ r）的成员包含在第二阶代数圆环T2r（Fq）中的条件，二次扩展的模数和基数，以及模数和r度延伸的基数。然后，表示转换装置执行由条件，模数和基数确定的加法和减法运算。

3. 发明申请

US20120150931A1 DECOMPRESSING APPARATUS AND COMPRESSING APPARATUS 有权
标题翻译：装卸设备和压缩设备
公开(公告)号：US20120150931A1
公开(公告)日：2012-06-14
申请号：US13225964
申请日：2011-09-06
申请人： Yoshikazu HANATANI , Taichi ISOGAI , Hirofumi MURATANI , Tomoko YONEMURA
发明人： Yoshikazu HANATANI , Taichi ISOGAI , Hirofumi MURATANI , Tomoko YONEMURA
IPC分类号： G06F17/11
CPC分类号： G09C1/00 , G06F17/12 , H04L9/3066 , H04L2209/30
摘要： According to one embodiment, a decompressing apparatus includes an input unit, a calculating unit, a first selecting unit, and a decompressing unit. The input unit inputs additional data, which is obtained based on trace expression data in which an element in a subgroup of a multiplicative group of a finite field is trace-expressed and affine expression data in which the trace expression data is affine-expressed, and the trace expression data. The calculating unit calculates a plurality of solutions of simultaneous equations derived by the trace expression data. The first selecting unit selects any of a plurality of items of affine expression data in which the element is affine-expressed based on the additional data, the affine expression data being found from the solutions. The decompressing unit decompresses the selected affine expression data to the element.
摘要翻译：根据一个实施例，解压缩装置包括输入单元，计算单元，第一选择单元和解压缩单元。输入单元输入基于跟踪表达数据获得的附加数据，其中有限域的乘法组的子组中的元素被跟踪表达，并且其中仿射表达数据被仿射表达的仿射表达式数据;以及跟踪表达式数据。计算单元计算由轨迹表达数据导出的多个联立方程的解。第一选择单元基于附加数据选择多个项目的仿射表达数据中的元素进行仿射表示，从解决方案中找到仿射表达数据。解压缩单元将所选择的仿射表达式数据解压缩到元素。

4. 发明申请

US20100046746A1 PARAMETER GENERATING DEVICE AND CRYPTOGRAPHIC PROCESSING SYSTEM 审中-公开
标题翻译：参数生成装置和图形处理系统
公开(公告)号：US20100046746A1
公开(公告)日：2010-02-25
申请号：US12407475
申请日：2009-03-19
申请人： Tomoko YONEMURA , Hirofumi Muratani , Atsushi Shimbo , Kenji Ohkuma , Taichi Isogai , Yuichi Komano , Kenichiro Furuta , Yoshikazu Hanatani
发明人： Tomoko YONEMURA , Hirofumi Muratani , Atsushi Shimbo , Kenji Ohkuma , Taichi Isogai , Yuichi Komano , Kenichiro Furuta , Yoshikazu Hanatani
IPC分类号： H04L9/30 , H04L9/00
CPC分类号： H04L9/3013 , H04L9/3033 , H04L2209/30
摘要： A parameter generating device includes an input receiving unit that receives a degree n of an algebraic torus T including a group G in which a cryptosystem used in a torus-compressed public key cryptosystem is defined, a size W of a finite field F, and a size S of the group G, an extension-degree determining unit that determines an extension degree m of a finite field Fpm in which the algebraic torus T is defined, a first prime-number search unit that searches for a prime number p, a second prime-number search unit that searches for a prime number q, a test unit that checks whether a multiplication value nm is divisible by the prime number q, a security determining unit that determines that the cryptosystem is secure based on the multiplication value nm, and an output unit that outputs parameters when it is determined that the cryptosystem is secure.
摘要翻译：参数产生装置包括：输入接收单元，其接收包括定义了圆环压缩的公钥密码系统中使用的密码系统的组G的代数环面T的度数n，有限域F的大小W，以及组G的大小S，确定其中定义代数环面T的有限域Fpm的扩展度m的扩展度确定单元，搜索素数p的第一素数搜索单元，第二搜索素数q的素数搜索单元，检查乘数值nm是否可被素数q整除的测试单元，基于乘法值nm确定密码系统安全的安全性确定单元，以及当确定密码系统是安全的时候输出参数的输出单元。

5. 发明申请

US20100046742A1 APPARATUS AND COMPUTER PROGRAM PRODUCT FOR PERFORMING DATA COMPRESSION PROCESSING USING ALGEBRAIC TORUS 有权
标题翻译：使用ALGBRAIC TORUS执行数据压缩处理的装置和计算机程序产品
公开(公告)号：US20100046742A1
公开(公告)日：2010-02-25
申请号：US12406473
申请日：2009-03-18
申请人： Hirofumi MURATANI , Tomoko Yonemura , Atsushi Shimbo , Kenji Ohkuma , Taichi Isogai , Yuichi Komano , Kenichiro Furuta , Yoshikazu Hanatani , Hanae Ikeda
发明人： Hirofumi MURATANI , Tomoko Yonemura , Atsushi Shimbo , Kenji Ohkuma , Taichi Isogai , Yuichi Komano , Kenichiro Furuta , Yoshikazu Hanatani , Hanae Ikeda
IPC分类号： H04L9/28
CPC分类号： H04L9/3013 , H04L2209/30
摘要： An encryption processing unit executes an arithmetic operation decided in advance and outputs an arithmetic result as an element on an algebraic torus. A compressing unit outputs, when the arithmetic result is an exceptional point representing an element on the algebraic torus that cannot be compressed by a compression map for compressing an element on the algebraic torus into affine representation, a compression result obtained by compressing the arithmetic result according to the compression map and outputs, when the arithmetic result is the exceptional point, an element belonging to a specific set decided in advance that does not overlap a set to which a compression result obtained by compressing the arithmetic result, which is not the exceptional point, belongs.
摘要翻译：加密处理单元执行预先决定的算术运算，并将运算结果作为代数圆环上的元素输出。压缩单元输出当运算结果为代表代数环面上的元素的异常点时，压缩图不能被压缩图压缩成代数圆环上的元素，成为仿射表示，压缩结果按照并且当算术结果为异常点时，输出属于预先确定的特定集合的元素，该元素不与通过压缩算术结果而获得的压缩结果的集合重叠，该算法结果不是例外，属于。

6. 发明申请

US20090049304A1 DIGITAL WATERMARK EMBEDDING APPARATUS AND METHOD, AND DIGITAL WATERMARK ANALYSIS APPARATUS, METHOD AND PROGRAM 失效
标题翻译：数字水印嵌入式设备与方法及数字水印分析仪器，方法与程序
公开(公告)号：US20090049304A1
公开(公告)日：2009-02-19
申请号：US12246234
申请日：2008-10-06
申请人： Hirofumi Muratani
发明人： Hirofumi Muratani
IPC分类号： H04L9/00
CPC分类号： H04H20/31 , G06T1/005 , G06T1/0071 , G06T2201/0063 , H04N1/32149 , H04N7/1675 , H04N21/8358 , H04N2201/3205 , H04N2201/3236
摘要： A digital watermark embedding apparatus comprises below units. A first generation unit generates a plurality of symbol sequences each of which includes a plurality of symbols including ranks, each of the ranks being uniquely numbered among each of the symbol sequences, each of the symbol sequences uniquely corresponding to each of a plurality of identification information items to be embedded as digital watermark information into each of copies of digital contents. A second generation generates a plurality of to-be-embedded codes corresponding to each of the symbols in each of the symbol sequences. An embedding unit embeds the to-be-embedded codes in each of the copies.
摘要翻译：数字水印嵌入装置包括下面的单元。第一代单元产生多个符号序列，每个符号序列包括多个符号，包括等级，每个符号序列中的每一个都是唯一编号的，每个符号序列唯一地对应于多个识别信息要作为数字水印信息嵌入数字内容的每个副本的项目。第二代产生对应于每个符号序列中的每个符号的多个待嵌入代码。嵌入单元将每个副本中的嵌入代码嵌入。

7. 发明授权

US07443999B2 Digital watermark embedding apparatus and method, and digital watermark analysis apparatus, method and program 失效
标题翻译：数字水印嵌入装置及方法，数字水印分析装置，方法与程序
公开(公告)号：US07443999B2
公开(公告)日：2008-10-28
申请号：US10648522
申请日：2003-08-27
申请人： Hirofumi Muratani
发明人： Hirofumi Muratani
IPC分类号： G06K9/00
CPC分类号： H04H20/31 , G06T1/005 , G06T1/0071 , G06T2201/0063 , H04N1/32149 , H04N7/1675 , H04N21/8358 , H04N2201/3205 , H04N2201/3236
摘要： A digital watermark embedding apparatus comprises below units. A first generation unit generates a plurality of symbol sequences each of which includes a plurality of symbols including ranks, each of the ranks being uniquely numbered among each of the symbol sequences, each of the symbol sequences uniquely corresponding to each of a plurality of identification information items to be embedded as digital watermark information into each of copies of digital contents. A second generation generates a plurality of to-be-embedded codes corresponding to each of the symbols in each of the symbol sequences. An embedding unit embeds the to-be-embedded codes in each of the copies.
摘要翻译：数字水印嵌入装置包括下面的单元。第一代单元产生多个符号序列，每个符号序列包括多个符号，包括等级，每个符号序列中的每一个都是唯一编号的，每个符号序列唯一地对应于多个识别信息要作为数字水印信息嵌入数字内容的每个副本的项目。第二代产生对应于每个符号序列中的每个符号的多个待嵌入代码。嵌入单元将每个副本中的嵌入代码嵌入。

8. 发明申请

US20070255956A1 IDENTIFICATION INFORMATION EMBEDDING APPARATUS AND IDENTIFICATION INFORMATION ANALYSIS APPARATUS 审中-公开
标题翻译：识别信息嵌入设备和标识信息分析设备
公开(公告)号：US20070255956A1
公开(公告)日：2007-11-01
申请号：US11770248
申请日：2007-06-28
申请人： Hirofumi MURATANI
发明人： Hirofumi MURATANI
IPC分类号： H04L9/00
CPC分类号： G06T1/005 , G06T2201/0063 , H04L9/002 , H04L9/0861 , H04L9/3226 , H04L2209/608 , H04N1/00039 , H04N1/32144 , H04N2201/3226 , H04N2201/3236
摘要： An identification information apparatus detects first and second boundary position information representing boundary positions on a high-order bit side and a low-order bit side of codes formed of components, extracts a colluder group matching with a set of the first and second boundary position information among colluder groups including combinations of an arbitrary number of identification information which is not more than a predetermined maximum number, and detects identification information which is common to a plurality of the colluder groups.
摘要翻译：识别信息装置检测表示由分量形成的码的高位位和低位侧的边界位置的第一和第二边界位置信息，提取与第一和第二边界位置信息的集合相匹配的共谋者组包括不超过预定最大数目的任意数量的识别信息的组合的共谋者组中，并检测多个共谋者组共同的识别信息。

9. 发明申请

US20070098151A1 Cryptographic protocol security verification apparatus, cryptographic protocol design apparatus, cryptographic protocol security verification method, cryptographic protocol design method and computer program product 审中-公开
标题翻译：加密协议安全验证装置，加密协议设计装置，加密协议安全验证方法，加密协议设计方法和计算机程序产品
公开(公告)号：US20070098151A1
公开(公告)日：2007-05-03
申请号：US11488942
申请日：2006-07-18
申请人： Hirofumi Muratani
发明人： Hirofumi Muratani
IPC分类号： H04L9/28 , H04L9/00 , H04K1/00
CPC分类号： H04L9/3247 , H04L9/3273 , H04L63/0428 , H04L63/1433
摘要： A cryptographic protocol security verification apparatus includes a formal verification unit verifying a presence or absence of a defect of a process for a party and a first virtual entity based on a description of a verifiable cryptographic protocol specification data, wherein the verifiable cryptographic protocol specification data includes a first description section containing a description of a process for the party actually involved in the execution of a cryptographic protocol, and a second description section, where the second description section corresponds to an ideal protocol defined by an universal composability and containing the description of the process for the party actually involved in the execution of the cryptographic protocol and a first virtual entity not actually involved in the execution of the cryptographic protocol, and does not contain a description for a second virtual entity not actually involved in the execution of the cryptographic protocol, and wherein the first virtual entity corresponds to an ideal functionality of the ideal protocol, and the second virtual entity corresponds to a simulator of the ideal protocol.
摘要翻译：密码协议安全验证装置包括形式验证单元，其基于对可验证密码协议规范数据的描述来验证一方和第一虚拟实体的进程的缺陷的存在与否，其中，所述可验证密码协议规范数据包括第一描述部分，其包含实际涉及执行密码协议的方的过程的描述，以及第二描述部分，其中第二描述部分对应于由通用可组合性定义的理想协议，并且包含执行加密协议的方的实际过程和不实际涉及密码协议执行的第一虚拟实体，并且不包含实际上并不涉及密码协议执行的第二虚拟实体的描述，并且其中th e第一虚拟实体对应于理想协议的理想功能，并且第二虚拟实体对应于理想协议的模拟器。

10. 发明授权

US07209556B2 Encryption apparatus and method, and decryption apparatus and method based on block encryption 有权
标题翻译：加密装置和方法，以及基于块加密的解密装置和方法
公开(公告)号：US07209556B2
公开(公告)日：2007-04-24
申请号：US11261562
申请日：2005-10-31
申请人： Kenji Ohkuma , Hirofumi Muratani , Shinichi Kawamura , Fumihiko Sano
发明人： Kenji Ohkuma , Hirofumi Muratani , Shinichi Kawamura , Fumihiko Sano
IPC分类号： H04K1/04 , H04L9/00 , H04L9/28
CPC分类号： H04L9/0631 , H04L9/0625 , H04L2209/08 , H04L2209/12 , H04L2209/24
摘要： An encryption apparatus for block data, comprises a first processing unit randomizing the block data in units of first portions obtained by dividing the block data, and a second processing unit diffusing the block data output from the first processing unit with respect to a second portion of the block data which is wider than the first portion. The first processing unit comprises first nonlinear processing units nonlinearly transforming the block data in units of the first portions. The second processing unit comprises a first linear diffusion processing unit linearly diffusing the second portion of the block data. At least one of the first nonlinear processing units comprises second nonlinear processing units nonlinearly transforming the block data in units of the first portions, and a second linear diffusion processing unit linearly diffusing the second portion of the block data.
摘要翻译：一种用于块数据的加密装置，包括：第一处理单元，以通过划分块数据获得的第一部分为单位随机化块数据;以及第二处理单元，对从第一处理单元输出的块数据相对于块数据比第一部分宽。第一处理单元包括以第一部分为单位非线性地变换块数据的第一非线性处理单元。第二处理单元包括线性扩散块数据的第二部分的第一线性扩散处理单元。第一非线性处理单元中的至少一个包括第二非线性处理单元，以第一部分为单位非线性地变换块数据;以及第二线性扩散处理单元，线性扩散块数据的第二部分。

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