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51. 发明申请

US20060093137A1 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：US20060093137A1
公开(公告)日：2006-05-04
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： H04L9/30
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(pˆm) 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 “ˆ” 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（pm）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是质数，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，用于对该点上的点进行标量乘法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同于0的值。该装置可以执行椭圆曲线密码系统中具有抗侧信道攻击的标量乘法。

52. 发明申请

US20050152541A1 Tamper-proof elliptic encryption with private key 有权
标题翻译：具有私钥的防篡改椭圆加密
公开(公告)号：US20050152541A1
公开(公告)日：2005-07-14
申请号：US11045111
申请日：2005-01-31
申请人： Masahiko Takenaka , Tetsuya Izu , Kouichi Itoh , Naoya Torii
发明人： Masahiko Takenaka , Tetsuya Izu , Kouichi Itoh , Naoya Torii
IPC分类号： G06F7/72 , G09C1/00 , H04K1/00 , H04L9/30
CPC分类号： G06F7/725 , G06F2207/7223
摘要： An encryption device (FIG. 15) performs elliptic curve encryption using a secret key. The encryption device includes: operation means (ECDBL, ECADD) for performing scalar multiplication of a point on an elliptic curve; storage (T[0]-T[2]) having a plurality of data storing areas; and means (SEL) for determining, in accordance with a bit sequence of a given value (d) and with a random value (RNG), an address of one of the plurality of data storage areas that is to be coupled to the operation means for each scalar multiplication.
摘要翻译：使用秘密密钥进行加密装置（图15

53. 发明授权

US06829592B1 Data protection system, data preparation device, and data working device 失效
标题翻译：数据保护系统，数据准备装置和数据工作装置
公开(公告)号：US06829592B1
公开(公告)日：2004-12-07
申请号：US09000924
申请日：1997-12-30
申请人： Takayuki Hasebe , Naoya Torii , Masahiko Takenaka , Souichi Okada , Yuji Kijima
发明人： Takayuki Hasebe , Naoya Torii , Masahiko Takenaka , Souichi Okada , Yuji Kijima
IPC分类号： G06F1721
CPC分类号： G06F21/10 , G06F21/62 , Y10S707/99945 , Y10S707/99948
摘要： When a user works data required for allowance for the use thereof, the work processing is carried out by utilizing an exclusive work processing device. Thereafter, only the data of work information indicating what kind of working has been made to the original data (for example, differential static image data indicating a difference between the original static image required for allowance for the use and the static image after having been worked) is stored, whereby the use without permission of the data is prevented.
摘要翻译：当用户工作所需的数据用于允许使用时，通过利用排他性处理装置来执行工作处理。此后，仅仅是指示对原始数据进行什么样的工作的工作信息的数据（例如，指示在使用中允许使用的原始静态图像与被处理后的静态图像之间的差异的差分静态图像数据），从而防止数据允许的使用。

54. 发明授权

US06415310B1 Remainder calculating method, modular-multiplication method, remainder calculating apparatus, modular-multiplication apparatus and recording medium 失效
标题翻译：剩余计算方法，乘法法，余数计算装置，模数乘法装置和记录介质
公开(公告)号：US06415310B1
公开(公告)日：2002-07-02
申请号：US09412502
申请日：1999-10-05
申请人： Masahiko Takenaka , Naoya Torii
发明人： Masahiko Takenaka , Naoya Torii
IPC分类号： G06F772
CPC分类号： G06F7/728
摘要： In a remainder calculating method and a modular-multiplication method on the basis of a Montgomery method, a number expressed by N (N=c2d±1) is used as a divisor N. In order to calculate a remainder in the case of dividing a dividend Y by a divisor N on the basis of a Montgomery method, a number expressed by a condition of N=c2d−1 is used as the divisor N, and the following steps are repeatedly carried out; the steps includes: a step of adding a product of a least digit value yo of the dividend Y and c to a lower d-bit position of the dividend Y; and a step of setting a portion excluding the least digit of the additive result as a next dividend.
摘要翻译：在基于蒙哥马利方法的余数计算方法和模乘法中，使用N（N = c2d±1）表示的数作为除数N.为了计算在除数除数N由蒙哥马利方法计算，由N = c2d-1的条件表示的数字用作除数N，并重复执行以下步骤：所述步骤包括：将除数Y和c的最小数字值yo的乘积加到所述除数Y的较低d位位置的步骤; 以及将除了加法结果的最小数字之外的部分设置为下一个分红的步骤。

55. 发明授权

US06385726B1 Software license protection via cryptography 失效
标题翻译：通过密码学软件许可证保护
公开(公告)号：US06385726B1
公开(公告)日：2002-05-07
申请号：US08825676
申请日：1997-03-20
申请人： Takayuki Hasebe , Naoya Torii , Masahiko Takenaka
发明人： Takayuki Hasebe , Naoya Torii , Masahiko Takenaka
IPC分类号： G06F124
CPC分类号： H04N21/2541 , G06F21/10
摘要： A contents utilizing management apparatus includes a utilizing condition storing unit for storing a utilizing condition corresponding to a sum of money of purchased authorization of contents, a determination unit, coupled to a plurality of computers in which contents are utilized, for determining, based on the utilizing condition of the contents referring to a utilizing request supplied from one of the plurality of computers, whether the contents can be utilized, and a utilizing permission unit for supplying permission to utilize the contents to the one of the plurality of computers when the determination unit determines that the contents can be utilized.
摘要翻译：内容利用管理装置包括：利用条件存储部，存储与内容的购买授权的金额相对应的利用条件;连接到使用内容的多个计算机的判定部，基于利用所述内容的条件参照从所述多台计算机之一提供的利用请求，所述内容是否可以被利用;以及利用许可单元，用于当所述确定单元向所述多个计算机中的一个计算机提供使用所述内容的许可时确定可以利用内容。

56. 发明授权

US5917908A File protection system, software utilization system using the file protection system and storage medium used in the software utilization system 失效
标题翻译：文件保护系统，使用软件利用系统中使用的文件保护系统和存储介质的软件利用系统
公开(公告)号：US5917908A
公开(公告)日：1999-06-29
申请号：US623682
申请日：1996-03-29
申请人： Masahiko Takenaka , Takayuki Hasebe , Naoya Torii , Noboru Iwayama
发明人： Masahiko Takenaka , Takayuki Hasebe , Naoya Torii , Noboru Iwayama
IPC分类号： G06F12/00 , G06F1/00 , G06F12/14 , G06F21/00 , G06F21/22 , G06F21/24 , G11B20/00 , G11B23/28 , G11B27/10 , G11B27/32 , H04K1/00 , H04L9/00
CPC分类号： G11B27/329 , G06F21/6218 , G11B20/00086 , G11B20/00123 , G11B20/0021 , G11B20/00224 , G11B20/00246 , G11B20/0071 , G11B27/105 , G06F2211/007 , G11B23/28
摘要： A file protection system for protecting a file which is stored in a storage unit includes a storage position deciding unit for deciding a positional-information corresponding to an area in which information of the file is stored in the storage unit and an encryption unit for encrypting the information of the file in accordance with a predetermined algorithm using at least a part of the positional-information decided by the storage position deciding unit. Information obtained by the encryption unit is stored in the area identified by the positional-information in the storage unit. A file protection system is operable when information of a file which was encrypted as described above is read out from a storage unit. The file protection system includes a decryption unit for decrypting the encrypted information of the file which is read out from an area in the storage unit using information corresponding the area, an extracting unit for extracting the positional-information from information obtained by the decryption unit, and a determination unit for determining whether or not the positional-information extracted by the extracting unit is equal to corresponding positional-information which is at least a part of the information corresponding to the area from which the encrypted information of the file is read out. When the determination unit determines that two pieces of positional-information are not equal to each other, it is determined that the information obtained by the decryption unit does not include correct information of the file.
摘要翻译：用于保护存储在存储单元中的文件的文件保护系统包括：存储位置确定单元，用于确定与存储在存储单元中的文件的信息相对应的区域的位置信息;以及加密单元，使用由存储位置决定单元决定的位置信息的至少一部分，根据预定算法对文件进行信息。由加密单元获得的信息被存储在由存储单元中的位置信息识别的区域中。当从存储单元读出如上所述加密的文件的信息时，文件保护系统可操作。文件保护系统包括：解密单元，用于使用与该区域对应的信息从存储单元中的区域读出的文件的加密信息解密;提取单元，用于从由解密单元获得的信息中提取位置信息; 以及确定单元，用于确定由提取单元提取的位置信息是否等于对应于与读取文件的加密信息的区域相对应的信息的至少一部分的对应位置信息。当确定单元确定两个位置信息彼此不相等时，确定由解密单元获得的信息不包括文件的正确信息。

57. 发明授权

US5832083A Method and device for utilizing data content 失效
标题翻译：利用数据内容的方法和装置
公开(公告)号：US5832083A
公开(公告)日：1998-11-03
申请号：US509285
申请日：1995-07-31
申请人： Noboru Iwayama , Naoya Torii , Takayuki Hasebe , Masahiko Takenaka , Masahiro Matsuda
发明人： Noboru Iwayama , Naoya Torii , Takayuki Hasebe , Masahiko Takenaka , Masahiro Matsuda
IPC分类号： G06F12/14 , G06F12/00 , G06F21/24 , G09C1/00 , H04L9/06 , H04L9/08 , H04L9/10 , H04L9/14 , H04K1/00
CPC分类号： H04L9/0822 , H04L9/0866 , H04L2209/60
摘要： The present invention provides a data content utilizing device having data storing section for storing information obtained by encoding data contents and content identification information specifying the data contents, a utilization permitting device for generating utilization permission information used to decode data contents desired by a user and information converting section for loading data contents requested by the user from the data storing section and decoding the data contents only in the case where utilization permission information is generated by the utilization permitting device.
摘要翻译：本发明提供了一种数据内容利用装置，具有数据存储部分，用于存储通过编码数据内容和指定数据内容的内容识别信息获得的信息;生成用于解码用户期望的数据内容的使用许可信息的使用许可信息和信息转换部分，用于从数据存储部分加载用户请求的数据内容，并且仅在利用许可装置产生利用许可信息的情况下解码数据内容。

58. 发明授权

US08391477B2 Cryptographic device having tamper resistance to power analysis attack 有权
标题翻译：具有抗电力分析攻击的加密设备
公开(公告)号：US08391477B2
公开(公告)日：2013-03-05
申请号：US11782168
申请日：2007-07-24
申请人： Tetsuya Izu , Kouichi Itoh , Masahiko Takenaka
发明人： Tetsuya Izu , Kouichi Itoh , Masahiko Takenaka
IPC分类号： H04K1/00 , H04L9/00 , G06F7/58 , G06F11/30 , G06F12/14
CPC分类号： H04L9/3066 , G06F7/725 , G06F2207/7238 , H04L9/003 , H04L9/302 , H04L2209/08 , H04L2209/127
摘要： A randomly selected point on an elliptic curve is set as the initial value of a variable and calculation including a random point value is performed in an algorithm for calculating arbitrary scalar multiple operation on an elliptic curve when scalar multiplication and addition on an elliptic curve are defined, then a calculation value obtained as a result of including a random point is subtracted from the calculation result, whereby an intended scalar multiple operation value on an elliptic curve is determined.
摘要翻译：将椭圆曲线上随机选择的点设置为变量的初始值，并且在用于在椭圆曲线上计算任意标量多次操作的算法中执行包括随机点值的计算，当在椭圆曲线上进行标量乘法和加法时，，则从计算结果中减去作为包括随机点的结果而获得的计算值，由此确定椭圆曲线上的期望标量多重操作值。

59. 发明授权

US08312266B2 Methods and apparatus for verifying electronic mail 有权
标题翻译：用于验证电子邮件的方法和装置
公开(公告)号：US08312266B2
公开(公告)日：2012-11-13
申请号：US12166971
申请日：2008-07-02
申请人： Takashi Yoshioka , Masahiko Takenaka , Tetsuya Izu
发明人： Takashi Yoshioka , Masahiko Takenaka , Tetsuya Izu
IPC分类号： H04L29/06
CPC分类号： H04L63/126 , H04L51/00 , H04L63/123
摘要： A computer extracts the header information from an electronic mail, including an originality guarantee. The computer generates a header characterization for the header information subject to originality guarantee, and extracts message body information from the electronic mail and generates a body characterization for the message body information as well. The generated characterization set applies the header characterization and the body characterization, combined. The verification information is added to the generated characterization set for applying a signature, and characterization set is linked to electronic mail.
摘要翻译：计算机从电子邮件中提取标题信息，包括原创性保证。计算机产生头文件标题，以保证原始性，并从电子邮件中提取消息体信息，并生成消息体信息的身体特征。生成的特征集合应用头部表征和身体表征，组合。将验证信息添加到生成的表征集中以应用签名，并且表征集与电子邮件相关联。

60. 发明授权

US08205077B2 Management apparatus 有权
标题翻译：管理装置
公开(公告)号：US08205077B2
公开(公告)日：2012-06-19
申请号：US12363879
申请日：2009-02-02
申请人： Bintatsu Noda , Masahiko Takenaka , Takayuki Hasebe , Takeaki Terada , Takashi Yoshioka
发明人： Bintatsu Noda , Masahiko Takenaka , Takayuki Hasebe , Takeaki Terada , Takashi Yoshioka
IPC分类号： G06F21/00
CPC分类号： G06F21/6209 , G06F2221/2145
摘要： A management apparatus comprising memory to store owner information, dependence relationship information, and authorized user information are associated with file information identifying the secret file, an authorized user determination unit to determine whether a source user of the browse request is registered as the authorized user of the browse request file, a dependent file specifying unit to specify a dependent file having a dependence relationship with the browse request file by referring to the dependence relationship information when the source user is authorized; and a browse permission response transmitting unit to transmit the browse permission response to the source user based on whether or not the source user is registered as the authorized user of the dependent file by referring to the authorized user information.
摘要翻译：包括存储所有者信息，依赖关系信息和授权用户信息的存储器的管理装置与识别秘密文件的文件信息相关联，授权用户确定单元确定浏览请求的源用户是否被注册为所述浏览请求文件，依赖文件指定单元，用于通过在所述源用户被授权时参考所述依赖关系信息来指定与所述浏览请求文件具有依赖关系的依赖文件; 以及浏览许可响应发送单元，用于基于源用户是否通过参考授权的用户信息注册为依赖文件的授权用户来向源用户发送浏览许可响应。

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