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1. 发明授权

US09794068B2 Cryptographic processing device and cryptographic processing method 有权
公开(公告)号：US09794068B2
公开(公告)日：2017-10-17
申请号：US14869470
申请日：2015-09-29
申请人： FUJITSU LIMITED
发明人： Masaya Yasuda
IPC分类号： H04L1/00 , H04L9/28 , H04L9/30 , H04L9/00 , H04L9/14
CPC分类号： H04L9/3093 , H04L9/008 , H04L9/14 , H04L2209/24
摘要： A memory stores therein a first vector. A processor generates a first encrypted polynomial by encrypting a first polynomial that corresponds to a first binary vector obtained by performing a binary transformation on elements of the first vector. A transmitter transmits to a cryptographic operation device cryptographic information that represents the first encrypted polynomial. The cryptographic operation device multiplies the first encrypted polynomial by a second encrypted polynomial that is generated by encrypting a second polynomial that corresponds to a second binary vector obtained by performing a binary transformation on elements of a second vector, so as to generate a third encrypted polynomial. When assigning 2 to a variable in a prescribed portion of a third polynomial obtained by decrypting the third encrypted polynomial, a result of an operation of the first vector and the second vector is obtained.

2. 发明申请

US20150207630A1 INFORMATION PROCESSING APPARATUS, AND INFORMATION PROCESSING METHOD 有权
标题翻译：信息处理设备和信息处理方法
公开(公告)号：US20150207630A1
公开(公告)日：2015-07-23
申请号：US14577482
申请日：2014-12-19
申请人： FUJITSU LIMITED
发明人： Takeshi Shimoyama , Masaya Yasuda , Jun Kogure
IPC分类号： H04L9/32 , H04L29/06
CPC分类号： H04L9/3231 , G06F21/32 , G06Q20/3823 , G06Q20/40145 , H04L9/008 , H04L63/0861
摘要： A non-transitory computer-readable recording medium stores an information processing program that causes a computer to execute a process including, generating feature information based on organism information of a user; calculating a first cryptogram based on a logical operation of the feature information generated and a random number; and encrypting the first cryptogram into a second cryptogram by using a cryptographic algorithm capable of calculating a Hamming distance in an encrypted state.
摘要翻译：非暂时性计算机可读记录介质存储使计算机执行处理的信息处理程序，所述处理包括：基于用户的生物体信息生成特征信息; 基于生成的特征信息的逻辑运算和随机数来计算第一密码; 以及通过使用能够计算加密状态下的汉明距离的加密算法，将所述第一密码加密成第二密码。

3. 发明授权

US10020933B2 Cryptographic processing device and cryptographic processing method 有权
公开(公告)号：US10020933B2
公开(公告)日：2018-07-10
申请号：US14934740
申请日：2015-11-06
申请人： FUJITSU LIMITED
发明人： Masaya Yasuda , Takeshi Shimoyama , Jun Kogure
IPC分类号： H04L9/00 , H04L29/06 , H04L9/14
CPC分类号： H04L9/008 , H04L9/14 , H04L63/0861 , H04L2209/046 , H04L2209/08
摘要： A memory stores therein first cryptographic information that represents an encrypted polynomial obtained by encrypting a first polynomial that corresponds to a first vector. From a terminal that receives second cryptographic information that represents an encrypted monomial obtained by encrypting a monomial generated by use of a random number, a receiver receives third cryptographic information that represents an encrypted result obtained by encrypting a result of a multiplication of a second polynomial that corresponds to a second vector by the monomial. A processor generates an encrypted polynomial that includes a result of an operation of the first vector and the second vector by use of the first cryptographic information, the third cryptographic information, and information that represents the monomial. An output interface outputs fourth cryptographic information that represents the encrypted polynomial generated by the generator.

4. 发明授权

US09871652B2 Cryptographic processing method and cryptographic processing device 有权
公开(公告)号：US09871652B2
公开(公告)日：2018-01-16
申请号：US14831179
申请日：2015-08-20
申请人： FUJITSU LIMITED
发明人： Ikuya Morikawa , Masaya Yasuda
IPC分类号： H04K1/00 , H04L9/00 , H04L9/28 , G09C1/00
CPC分类号： H04L9/008 , G09C1/00
摘要： A computer generates a third encrypted polynomial that corresponds to a result of encrypting a third polynomial by use of a result of multiplying a first encrypted polynomial by a second encrypted polynomial, and outputs cryptographic information that represents the third encrypted polynomial. The first encrypted polynomial is a polynomial obtained by encrypting a first polynomial that corresponds to a first vector, and the second encrypted polynomial is a polynomial obtained by encrypting a second polynomial that corresponds to a second vector. The third polynomial includes a first term that has a coefficient based on an inner product of the first vector and the second vector and a second term other than the first term, in which a coefficient of the second term is masked.

5. 发明授权

US09386017B2 Authentication device, system and method 有权
标题翻译：认证设备，系统和方法
公开(公告)号：US09386017B2
公开(公告)日：2016-07-05
申请号：US14270495
申请日：2014-05-06
申请人： FUJITSU LIMITED
发明人： Yumi Sakemi , Tetsuya Izu , Masahiko Takenaka , Masaya Yasuda
IPC分类号： H04L9/32 , H04L29/06
CPC分类号： H04L63/0861 , H04L63/0853
摘要： An authentication device includes: a memory; and a processor coupled to the memory and configured to: when a registration request including authentication information to be used during authentication is received from a terminal device, generate registration information using the authentication information and key information and store the registration information in the memory, and when an authentication request including input information to be handled as the target of the authentication is received from the terminal device, generate a result of the authentication based on the input information, the registration information, and the key information, and transmit the result of the authentication to the terminal device.
摘要翻译：认证装置包括：存储器; 以及处理器，其耦合到所述存储器并且被配置为：当从终端设备接收到包括在认证期间要使用的认证信息的注册请求时，使用所述认证信息和密钥信息生成注册信息，并将所述注册信息存储在所述存储器中，以及当从终端装置接收到包含要作为认证目标处理的输入信息的认证请求时，根据输入信息，登记信息和密钥信息生成认证结果，并发送验证终端设备。

6. 发明授权

US09531539B2 Information processing apparatus, and information processing method 有权
标题翻译：信息处理装置和信息处理方法
公开(公告)号：US09531539B2
公开(公告)日：2016-12-27
申请号：US14577482
申请日：2014-12-19
申请人： FUJITSU LIMITED
发明人： Takeshi Shimoyama , Masaya Yasuda , Jun Kogure
IPC分类号： H04L29/00 , H04L9/32 , H04L29/06 , G06F21/32 , H04L9/00 , G06Q20/40
CPC分类号： H04L9/3231 , G06F21/32 , G06Q20/3823 , G06Q20/40145 , H04L9/008 , H04L63/0861
摘要： A non-transitory computer-readable recording medium stores an information processing program that causes a computer to execute a process including, generating feature information based on organism information of a user; calculating a first cryptogram based on a logical operation of the feature information generated and a random number; and encrypting the first cryptogram into a second cryptogram by using a cryptographic algorithm capable of calculating a Hamming distance in an encrypted state.
摘要翻译：非暂时性计算机可读记录介质存储使计算机执行处理的信息处理程序，所述处理包括：基于用户的生物体信息生成特征信息; 基于生成的特征信息的逻辑运算和随机数来计算第一密码; 以及通过使用能够计算加密状态下的汉明距离的加密算法，将所述第一密码加密成第二密码。

7. 发明授权

US09455984B2 Secret data matching device, secret data matching method, and recording medium 有权
标题翻译：秘密数据匹配装置，秘密数据匹配方法和记录介质
公开(公告)号：US09455984B2
公开(公告)日：2016-09-27
申请号：US14317241
申请日：2014-06-27
申请人： FUJITSU LIMITED
发明人： Yuka Jo , Masaya Yasuda
IPC分类号： H04L9/32 , H04L29/06 , G06F21/32 , G06K9/00
CPC分类号： H04L63/0861 , G06F21/32 , G06K9/00885 , G06K2009/00953 , H04L63/061
摘要： A secret data matching device includes: a memory; and a processor coupled to the memory. The processor executes a process including: storing a first secret vector obtained by concealing first data and key data based on a first random number and a first linear combination of row vectors of a determination matrix which is different for each system including the secret data matching device and which is generated by attaching a random number vector as a last column to a matrix including diagonal components including a threshold value to determine whether the first data and second data are approximate to each other and a threshold value related to the key data; acquiring a second secret vector obtained by concealing the second data based on a second linear combination of row vectors of the determination matrix and a second random number.
摘要翻译：秘密数据匹配装置包括：存储器; 以及耦合到存储器的处理器。处理器执行处理，该处理包括：存储通过隐藏第一数据和密钥数据而获得的第一秘密向量，所述第一秘密向量基于对于包括秘密数据匹配装置的每个系统不同的确定矩阵的第一随机数和行向量的第一线性组合并且其通过将随机数向量作为最后一列附加到包括包括阈值的对角分量的矩阵，以确定第一数据和第二数据是否彼此近似，以及与密钥数据相关的阈值来生成的; 获取通过基于所述确定矩阵和第二随机数的行向量的第二线性组合来隐藏所述第二数据而获得的第二秘密向量。

8. 发明授权

US09438423B2 Encryption device, encryption method, and information processing device 有权
标题翻译：加密设备，加密方法和信息处理设备
公开(公告)号：US09438423B2
公开(公告)日：2016-09-06
申请号：US14633933
申请日：2015-02-27
申请人： FUJITSU LIMITED
发明人： Masaya Yasuda , Takeshi Shimoyama , Jun Kogure
IPC分类号： H04L29/06 , H04L9/32 , H04L9/14 , H04L9/00 , H04L9/08
CPC分类号： H04L9/14 , H04L9/008 , H04L9/0825 , H04L2209/76
摘要： An encryption server receives encrypted data which is encrypted by using a public key of a first user and which is added with auxiliary information calculated using a combination of a secret key and the public key of the first user and data to be encrypted. Then, the encryption server generates re-encrypted data obtained by re-encrypting the encrypted data using the auxiliary information added to the encrypted data, a public key of a second user, and encrypted information related to the secret key of the first user which is encrypted with the public key of the second user.
摘要翻译：加密服务器接收通过使用第一用户的公开密钥加密并加上使用秘密密钥和第一用户的公钥的组合计算的辅助信息和要加密的数据的加密数据。然后，加密服务器生成通过使用添加到加密数据的辅助信息，第二用户的公钥和与第一用户的秘密密钥相关的加密信息再加密加密数据而获得的再加密数据，用第二用户的公钥加密。

9. 发明申请

US20150304320A1 SECRET DATA MATCHING DEVICE, SECRET DATA MATCHING METHOD, AND RECORDING MEDIUM 有权
标题翻译：秘密数据匹配设备，秘密数据匹配方法和记录介质
公开(公告)号：US20150304320A1
公开(公告)日：2015-10-22
申请号：US14317241
申请日：2014-06-27
申请人： FUJITSU LIMITED
发明人： Yuka Jo , Masaya Yasuda
IPC分类号： H04L29/06
CPC分类号： H04L63/0861 , G06F21/32 , G06K9/00885 , G06K2009/00953 , H04L63/061
摘要： A secret data matching device includes: a memory; and a processor coupled to the memory. The processor executes a process including: storing a first secret vector obtained by concealing first data and key data based on a first random number and a first linear combination of row vectors of a determination matrix which is different for each system including the secret data matching device and which is generated by attaching a random number vector as a last column to a matrix including diagonal components including a threshold value to determine whether the first data and second data are approximate to each other and a threshold value related to the key data; acquiring a second secret vector obtained by concealing the second data based on a second linear combination of row vectors of the determination matrix and a second random number.
摘要翻译：秘密数据匹配装置包括：存储器; 以及耦合到存储器的处理器。处理器执行处理，该处理包括：存储通过隐藏第一数据和密钥数据而获得的第一秘密向量，所述第一秘密向量基于对于包括秘密数据匹配装置的每个系统不同的确定矩阵的第一随机数和行向量的第一线性组合并且其通过将随机数向量作为最后一列附加到包括包括阈值的对角分量的矩阵，以确定第一数据和第二数据是否彼此近似，以及与密钥数据相关的阈值来生成的; 获取通过基于所述确定矩阵和第二随机数的行向量的第二线性组合来隐藏所述第二数据而获得的第二秘密向量。

10. 发明授权

US09100185B2 Encryption processing apparatus and method 有权
标题翻译：加密处理装置和方法
公开(公告)号：US09100185B2
公开(公告)日：2015-08-04
申请号：US14104758
申请日：2013-12-12
申请人： FUJITSU LIMITED
发明人： Masaya Yasuda , Takeshi Shimoyama , Jun Kogure
IPC分类号： H04L9/28 , G06F21/32 , H04L9/00 , H04L9/08
CPC分类号： H04L9/28 , G06F21/32 , H04L9/008 , H04L9/08 , H04L9/3093
摘要： A device that uses homomorphic encryption is disclosed. The device obtains a first encrypted polynomial, a second encrypted polynomial, a first encrypted weight, and a second encrypted weight by respectively encrypting a first polynomial, a second polynomial, a first weight, and a second weight by using a homomorphic encryption scheme, and obtains an encrypted secure distance corresponding to encryption of a secure distance.
摘要翻译：公开了一种使用同态加密的设备。该设备通过使用同态加密方案分别加密第一多项式，第二多项式，第一权重和第二权重，获得第一加密多项式，第二加密多项式，第一加密权重和第二加密权重，以及获得对应于安全距离的加密的加密安全距离。

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