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

US09391965B2 Data search device, data search method, data search program, data registration device, data registration method, data registration program, and information processing device 有权
标题翻译：数据搜索装置，数据搜索方法，数据搜索程序，数据登记装置，数据登记方法，数据登记程序和信息处理装置
公开(公告)号：US09391965B2
公开(公告)日：2016-07-12
申请号：US14350987
申请日：2012-01-25
申请人： Mitsuhiro Hattori , Nori Matsuda , Takashi Ito , Takumi Mori , Takato Hirano
发明人： Mitsuhiro Hattori , Nori Matsuda , Takashi Ito , Takumi Mori , Takato Hirano
IPC分类号： H04L29/06 , H04L9/30
CPC分类号： H04L63/065 , H04L9/30 , H04L9/3073 , H04L2209/42
摘要： A data search server stores a system ciphertext including a data ciphertext and a keyword ciphertext in each category-specific DB unit for each data category, and stores each category-determination secret key being associated with each category-specific DB unit. A search request receiving unit receives from a data search terminal a search request including a search trapdoor and an index tag. A data searching unit searches for a category-determination secret key with which the index tag is decrypted to the same value as a key-determination value. Using the search trapdoor, the data searching unit performs a search of a Public-key Encryption with Keyword Search scheme on system ciphertexts in a category-specific DB unit associated with this category-determination secret key. A search result transmitting unit transmits to the data search terminal a data ciphertext included in a system ciphertext which has been found as a hit in the search.
摘要翻译：数据搜索服务器在每个数据类别的每个类别特定DB单元中存储包括数据密文和关键字密文的系统密文，并且存储与每个类别专用DB单元相关联的每个类别确定秘密密钥。搜索请求接收单元从数据搜索终端接收包括搜索陷门和索引标签的搜索请求。数据搜索单元搜索索引标签被解密的类别确定秘密密钥与密钥确定值相同的值。使用搜索陷门，数据搜索单元在与该类别确定秘密密钥相关联的类别特定DB单元中的系统密文上执行关键字搜索方案的公开密钥加密的搜索。搜索结果发送单元向数据搜索终端发送包括在已经被发现为搜索中的命中的系统密文中的数据密文。

2. 发明授权

US09276746B2 Encryption system, encryption processing method of encryption system, encryption device, decryption device, setup device, key generation device, and key delegation device using a user identifier for a user who belongs to a k-th hierarchy in an organization 有权
标题翻译：加密系统，加密系统的加密处理方法，加密装置，解密装置，设置装置，密钥生成装置以及使用用户标识符的密钥委派装置，所述用户标识符属于组织中的第k层次的用户
公开(公告)号：US09276746B2
公开(公告)日：2016-03-01
申请号：US13980176
申请日：2011-01-18
申请人： Mitsuhiro Hattori , Takato Hirano , Takumi Mori , Takashi Ito , Nori Matsuda , Tsutomu Sakagami
发明人： Mitsuhiro Hattori , Takato Hirano , Takumi Mori , Takashi Ito , Nori Matsuda , Tsutomu Sakagami
IPC分类号： H04L9/30 , H04L9/08
CPC分类号： H04L9/3006 , H04L9/0836 , H04L9/0847 , H04L9/3073 , H04L2209/42
摘要： In a wildcard-applicable anonymous hierarchical identity-based encryption system, it is aimed to make the number of pairing operations a fixed number. A user identifier ID and a pattern P are used. The user identifier ID includes k number of hierarchy identifiers. The pattern P includes either of a hierarchy identifier, a wildcard value and a blank value for each hierarchy. An encryption device 400 extracts a key value H corresponding to a hierarchy of the wildcard value and a key value H corresponding to a hierarchy of a pattern value from a public key PK, calculates a cipher value C1 and a cipher value C3, and outputs ciphertext data CT including plaintext cipher value C0, the cipher value C1, and the cipher value C3. A decryption device 300 extracts the hierarchy identifier of the hierarchy corresponding to the wildcard value from the user identifier ID, decrypts the plaintext cipher value C0 included in the ciphertext data CT using the extracted hierarchy identifier, the cipher value C1 and the cipher value C3 which are included in the ciphertext data CT, and outputs plaintext data M.
摘要翻译：在通配符适用的匿名分层身份加密系统中，目的是使配对操作的数量成为固定数量。使用用户标识符ID和模式P。用户标识符ID包括k个层次标识符。模式P包括层次结构标识符，通配符值和每个层级的空白值中的任何一个。加密装置400从公开密钥PK提取与通配符值的层级对应的密钥值H和对应于模式值的层次的密钥值H，计算密码值C1和密码值C3，并输出密文数据CT包括明文密码值C0，密码值C1和密码值C3。解密装置300从用户标识符ID中提取与通配符值对应的层次结构的层次标识符，使用提取的层次标识符，密码值C1和密码值C3对包含在密文数据CT中的明文密码值C0进行解密被包含在密文数据CT中，并输出明文数据M.

3. 发明申请

US20130287210A1 DATA PROCESSING APPARATUS AND DATA STORAGE APPARATUS 有权
标题翻译：数据处理设备和数据存储设备
公开(公告)号：US20130287210A1
公开(公告)日：2013-10-31
申请号：US13979508
申请日：2011-01-13
申请人： Nori Matsuda , Takashi Ito , Mitsuhiro Hattori , Takumi Mori , Takato Hirano
发明人： Nori Matsuda , Takashi Ito , Mitsuhiro Hattori , Takumi Mori , Takato Hirano
IPC分类号： H04L9/08
CPC分类号： G06F21/62 , G06F21/6218 , G06F21/6272 , G06F2221/2107 , H04L9/0894
摘要： An access terminal apparatus provides a group determination key being a decryption key to a data center apparatus previously, and then transmits grouping information generated from a keyword of storage target data and having been encrypted to the data center apparatus, with encrypted data of the storage target data and tag data of the encrypted data of the storage target data. The data center apparatus stores the encrypted data relating it to the tag data, decrypts a part of the grouping information with the group determination key, derives an index value from a bit value obtained by the decryption, and stores the derived index value and the tag data relating them with each other.
摘要翻译：接入终端装置将作为解密密钥的组确定密钥提供给数据中心装置，然后将从存储对象数据的关键词生成的已经被加密的分组信息发送到数据中心装置，具有存储对象的加密数据存储目标数据的加密数据的数据和标签数据。数据中心装置将与标签数据相关的加密数据存储起来，利用组确定密钥对分组信息的一部分进行解密，从通过解密获得的比特值导出索引值，并存储导出的索引值和标签数据相互关联。

4. 发明申请

US20140298009A1 DATA SEARCH DEVICE, DATA SEARCH METHOD, DATA SEARCH PROGRAM, DATA REGISTRATION DEVICE, DATA REGISTRATION METHOD, DATA REGISTRATION PROGRAM, AND INFORMATION PROCESSING DEVICE 有权
标题翻译：数据搜索设备，数据搜索方法，数据搜索程序，数据注册设备，数据注册方法，数据注册程序和信息处理设备
公开(公告)号：US20140298009A1
公开(公告)日：2014-10-02
申请号：US14350987
申请日：2012-01-25
申请人： Mitsuhiro Hattori , Nori Matsuda , Takashi Ito , Takumi Mori , Takato Hirano
发明人： Mitsuhiro Hattori , Nori Matsuda , Takashi Ito , Takumi Mori , Takato Hirano
IPC分类号： H04L29/06
CPC分类号： H04L63/065 , H04L9/30 , H04L9/3073 , H04L2209/42
摘要： A data search server stores a system ciphertext including a data ciphertext and a keyword ciphertext in each category-specific DB unit for each data category, and stores each category-determination secret key being associated with each category-specific DB unit. A search request receiving unit receives from a data search terminal a search request including a search trapdoor and an index tag. A data searching unit searches for a category-determination secret key with which the index tag is decrypted to the same value as a key-determination value. Using the search trapdoor, the data searching unit performs a search of a Public-key Encryption with Keyword Search scheme on system ciphertexts in a category-specific DB unit associated with this category-determination secret key. A search result transmitting unit transmits to the data search terminal a data ciphertext included in a system ciphertext which has been found as a hit in the search.
摘要翻译：数据搜索服务器在每个数据类别的每个类别特定DB单元中存储包括数据密文和关键字密文的系统密文，并且存储与每个类别特定DB单元相关联的每个类别确定秘密密钥。搜索请求接收单元从数据搜索终端接收包括搜索陷门和索引标签的搜索请求。数据搜索单元搜索索引标签被解密的类别确定秘密密钥与密钥确定值相同的值。使用搜索陷门，数据搜索单元在与该类别确定秘密密钥相关联的类别特定DB单元中的系统密文上执行关键字搜索方案的公开密钥加密的搜索。搜索结果发送单元向数据搜索终端发送包括在已经被发现为搜索中的命中的系统密文中的数据密文。

5. 发明申请

US20140247939A1 DATA PROCESSING DEVICE AND DATA PROCESSING METHOD AND PROGRAM 审中-公开
标题翻译：数据处理设备和数据处理方法与程序
公开(公告)号：US20140247939A1
公开(公告)日：2014-09-04
申请号：US14350740
申请日：2011-11-30
申请人： Mitsuhiro Hattori , Takato Hirano , Takumi Mori , Takashi Ito , Nori Matsuda
发明人： Mitsuhiro Hattori , Takato Hirano , Takumi Mori , Takashi Ito , Nori Matsuda
IPC分类号： H04L9/08 , H04L9/30
CPC分类号： H04L9/30 , H04L9/008 , H04L9/0869 , H04L9/3073 , H04L2209/56
摘要： A storage part stores a public key generated based on a doubly homomorphic encryption algorithm and data encrypted by using the public key as a template to be used for authentication. A random number generating part generates a random number using at least a part of the public key in the storage part. A template updating part performs an arithmetic operation using the random number generated by the random number generating part and updates the template. The storage part stores the updated template by overwriting the template before being updated.
摘要翻译：存储部存储基于双同质加密算法生成的公开密钥和使用公开密钥加密的数据作为要用于认证的模板。随机数生成部使用存储部中的公开密钥的至少一部分来生成随机数。模板更新部分使用由随机数生成部生成的随机数进行算术运算，并更新模板。存储部件在更新之前通过覆盖模板来存储更新的模板。

6. 发明授权

US10235539B2 Server device, recording medium, and concealed search system 有权
公开(公告)号：US10235539B2
公开(公告)日：2019-03-19
申请号：US14765050
申请日：2013-02-25
申请人： Takashi Ito , Nori Matsuda , Mitsuhiro Hattori , Takumi Mori , Takato Hirano
发明人： Takashi Ito , Nori Matsuda , Mitsuhiro Hattori , Takumi Mori , Takato Hirano
IPC分类号： G06F21/00 , G06F21/72 , G06F21/62 , G09C1/00 , H04L9/30
摘要： A server device 201 comprises a communication part 231, a search history storage region 213, a data storage part 210, and a checking part 220. The communication part receives a set of a trapdoor and a deterministic encrypted keyword from a search device 401. The search history storage region 213 stores the set of the trapdoor and the deterministic encrypted keyword. The data storage part 210 stores keyword information in which search target data and an encrypted keyword are associated with each other. If the deterministic encrypted keyword is obvious, a deterministic encrypted keyword corresponding to the encrypted keyword is additionally associated with the search target data and the encrypted keyword in the keyword information. The checking part 220 checks whether or not a deterministic encrypted keyword which matches the received deterministic encrypted keyword exists in the search history storage region 213. If the deterministic encrypted keyword exists, the checking part 220 executes a concealed search targeting the data storage part 210, based on a deterministic encryption scheme using the deterministic encrypted keyword existing in the search history storage region 213. If the deterministic encrypted keyword does not exist, the checking part 220 executes the concealed search targeting the data storage part 210, based on a probabilistic encryption scheme using the received trapdoor and the encrypted keyword stored in the data storage part 210.

7. 发明授权

US09111106B2 Data processing apparatus and data storage apparatus 有权
标题翻译：数据处理装置和数据存储装置
公开(公告)号：US09111106B2
公开(公告)日：2015-08-18
申请号：US13979508
申请日：2011-01-13
申请人： Nori Matsuda , Takashi Ito , Mitsuhiro Hattori , Takumi Mori , Takato Hirano
发明人： Nori Matsuda , Takashi Ito , Mitsuhiro Hattori , Takumi Mori , Takato Hirano
IPC分类号： G06F21/62
CPC分类号： G06F21/62 , G06F21/6218 , G06F21/6272 , G06F2221/2107 , H04L9/0894
摘要： An access terminal apparatus provides a group determination key being a decryption key to a data center apparatus previously, and then transmits grouping information generated from a keyword of storage target data and having been encrypted to the data center apparatus, with encrypted data of the storage target data and tag data of the encrypted data of the storage target data. The data center apparatus stores the encrypted data relating it to the tag data, decrypts a part of the grouping information with the group determination key, derives an index value from a bit value obtained by the decryption, and stores the derived index value and the tag data relating them with each other.
摘要翻译：接入终端装置将作为解密密钥的组确定密钥提供给数据中心装置，然后将从存储对象数据的关键词生成的已经被加密的分组信息发送到数据中心装置，具有存储对象的加密数据存储目标数据的加密数据的数据和标签数据。数据中心装置将与标签数据相关的加密数据存储起来，利用组确定密钥对分组信息的一部分进行解密，从通过解密获得的比特值导出索引值，并存储导出的索引值和标签数据相互关联。

8. 发明申请

US20130318351A1 SIMILARITY DEGREE CALCULATION SYSTEM, SIMILARITY DEGREE CALCULATION APPARATUS, COMPUTER PROGRAM, AND SIMILARITY DEGREE CALCULATION METHOD 审中-公开
标题翻译：相似度计算系统，相似度计算设备，计算机程序和相似度计算方法
公开(公告)号：US20130318351A1
公开(公告)日：2013-11-28
申请号：US13982546
申请日：2011-02-22
申请人： Takato Hirano , Nori Matsuda , Takashi Ito , Mitsuhiro Hattori , Takumi Mori
发明人： Takato Hirano , Nori Matsuda , Takashi Ito , Mitsuhiro Hattori , Takumi Mori
IPC分类号： H04L9/32
CPC分类号： H04L9/32 , H04L9/008 , H04L9/3073 , H04L9/3231 , H04L2209/34
摘要： Based on an encrypted feature vector (comparison ciphertext) encrypted with a public key of a decryption apparatus and an encrypted feature vector (target ciphertext) encrypted with the public key of the decryption apparatus, and a random number (temporary key) generated by a random number generation unit (temporary key generation unit), an encrypted random similarity degree calculation unit (interim similarity degree ciphertext calculation unit) performs calculation for calculating a similarity degree in a first stage, with two encrypted feature vectors kept encrypted, thereby calculating a second challenge. The decryption apparatus decrypts the second challenge with a secret key sk of the decryption apparatus, and performs calculation for calculating the similarity degree in a second stage with a result of the decryption kept encrypted with the temporary key, thereby calculating a second response. A plaintext similarity degree extraction unit (similarity degree calculation unit) decrypts the second response with the temporary key, thereby calculating a similarity degree.
摘要翻译：基于用解密装置的公开密钥加密的加密特征向量（比较密文）和用解密装置的公开密钥加密的加密特征向量（目标密文），以及随机数（临时密钥）数字生成单元（临时密钥生成单元），加密的随机相似度计算单元（临时相似度密文计算单元）进行用于计算第一级中的相似度的计算，其中两个加密的特征向量保持加密，从而计算第二挑战。解密装置用解密装置的秘密密钥sk解密第二质询，并且利用临时密钥进行解密的结果进行第二阶段的相似度的计算，计算第二响应。明文相似度提取单元（相似度计算单元）用临时密钥对第二响应进行解密，从而计算相似度。

9. 发明申请

US20130287206A1 ENCRYPTION SYSTEM, ENCRYPTION PROCESSING METHOD OF ENCRYPTION SYSTEM, ENCRYPTION DEVICE, ENCRYPTION PROGRAM, DECRYPTION DEVICE, DECRYPTION PROGRAM, SETUP DEVICE, SETUP PROGRAM, KEY GENERATION DEVICE, KEY GENERATION PROGRAM, KEY DELEGATION DEVICE, AND KEY DELEGATION PROGRAM 有权
标题翻译：加密系统，加密系统的加密处理方法，加密设备，加密程序，分解设备，分解程序，设置设备，设置程序，主要生成设备，主要生成程序，主要代理设备和主要代理程序
公开(公告)号：US20130287206A1
公开(公告)日：2013-10-31
申请号：US13980176
申请日：2011-01-18
申请人： Mitsuhiro Hattori , Takato Hirano , Takumi Mori , Takashi Ito , Nori Matsuda , Tsutomu Sakagami
发明人： Mitsuhiro Hattori , Takato Hirano , Takumi Mori , Takashi Ito , Nori Matsuda , Tsutomu Sakagami
IPC分类号： H04L9/30
CPC分类号： H04L9/3006 , H04L9/0836 , H04L9/0847 , H04L9/3073 , H04L2209/42
摘要： In a wildcard-applicable anonymous hierarchical identity-based encryption system, it is aimed to make the number of pairing operations a fixed number. A user identifier ID and a pattern P are used. The user identifier ID includes k number of hierarchy identifiers. The pattern P includes either of a hierarchy identifier, a wildcard value and a blank value for each hierarchy. An encryption device 400 extracts a key value H corresponding to a hierarchy of the wildcard value and a key value H corresponding to a hierarchy of a pattern value from a public key PK, calculates a cipher value C1 and a cipher value C3, and outputs ciphertext data CT including plaintext cipher value C0, the cipher value C1, and the cipher value C3. A decryption device 300 extracts the hierarchy identifier of the hierarchy corresponding to the wildcard value from the user identifier ID, decrypts the plaintext cipher value C0 included in the ciphertext data CT using the extracted hierarchy identifier, the cipher value C1 and the cipher value C3 which are included in the ciphertext data CT, and outputs plaintext data M.
摘要翻译：在通配符适用的匿名分层身份加密系统中，目的是使配对操作的数量成为固定数量。使用用户标识符ID和模式P。用户标识符ID包括k个层次标识符。模式P包括层次结构标识符，通配符值和每个层级的空白值中的任何一个。加密装置400从公开密钥PK提取与通配符值的层级对应的密钥值H和对应于模式值的层次的密钥值H，计算密码值C1和密码值C3，并输出密文数据CT包括明文密码值C0，密码值C1和密码值C3。解密装置300从用户标识符ID中提取与通配符值对应的层次结构的层次标识符，使用提取的层次标识符，密码值C1和密码值C3对包含在密文数据CT中的明文密码值C0进行解密被包含在密文数据CT中，并输出明文数据M.

10. 发明授权

US09237137B2 Key generation device, key generation program, secret search system, and key distribution method 有权
标题翻译：密钥生成设备，密钥生成程序，秘密搜索系统和密钥分发方法
公开(公告)号：US09237137B2
公开(公告)日：2016-01-12
申请号：US14420995
申请日：2013-01-12
申请人： Mitsuhiro Hattori , Takato Hirano , Takashi Ito , Nori Matsuda
发明人： Mitsuhiro Hattori , Takato Hirano , Takashi Ito , Nori Matsuda
IPC分类号： H04L29/06 , H04L9/30
CPC分类号： H04L63/0428 , G06F21/602 , G06F21/6227 , G06F2221/2107 , H04L9/3066 , H04L9/3073 , H04L63/0442 , H04L2209/42
摘要： A public parameter PK is key information used in a secret search system having: a transmission device generating and sending an encryption tag which is an encrypted keyword; a server receiving and storing the encryption tag and conducting a secret search in response to a request for the secret search; and a reception device generating a trapdoor which corresponds to a digital signature of the keyword and as well data requesting the secret search, sending the trapdoor to the server, and receiving a search result. The public parameter PK includes a true public parameter PP and a protection key PK′. The transmission device and the reception device require both the true public parameter PP and the protection key PK′; however, the server does not require the protection key PK′. The key generation device generates separately the true public parameter PP and the protection key PK′ included in the public parameter PK.
摘要翻译：公共参数PK是在秘密搜索系统中使用的密钥信息，其具有：发送装置，生成并发送作为加密关键字的加密标签; 接收和存储加密标签并响应于秘密搜索的请求进行秘密搜索的服务器的服务器; 以及产生对应于关键字的数字签名的陷门的接收装置，以及请求秘密搜索的数据，向该服务器发送该陷门并接收一搜索结果。公共参数PK包括真实的公共参数PP和保护密钥PK'。传输设备和接收设备需要真实的公共参数PP和保护密钥PK'; 但是，服务器不需要保护密钥PK'。密钥生成装置分别生成公共参数PK中包含的真实公共参数PP和保护密钥PK'。

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