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    • 94. 发明专利
    • Solution device of shortest vector problem using parallel gauss sieve algorithm in public key encryption system, solution method and program
    • 解决方案和程序使用并行GAUSS SIEVE算法的最短矢量问题的解决方案
    • JP2014186097A
    • 2014-10-02
    • JP2013059707
    • 2013-03-22
    • Kddi CorpKddi株式会社
    • ISHIGURO TSUKASAKIYOMOTO SHINSAKUMIYAKE MASARU
    • G09C1/00
    • PROBLEM TO BE SOLVED: To provide a solution device of the shortest vector problem using parallel Gauss Sieve algorithm in a public key encryption system in which deterioration of efficiency is not generated even when parallelism of processing is raised, a solution method and a program.SOLUTION: A first reduce part reduces combination of vectors and sample vectors, and moves the reduced vectors to a stack part. A second reduce part reduces sample vectors which are not reduced by the first reduce part, and moves the reduced vectors to the stack part. A third reduce part reduces combination of sample vectors and vectors which is not reduced in the first and second reduce parts, merges the vectors in the stack part and vectors in a second vector storage part, detects the shortest vector from among them, and outputs the shortest vector of all from among detection results.
    • 要解决的问题:为了在公共密钥加密系统中提供使用并行高斯筛选算法的最短向量问题的解决方案装置,其中即使提高处理并行性也不会产生效率的劣化,解决方案和程序。 :第一减少部分减少矢量和样本矢量的组合,并将缩小矢量移动到堆叠部分。 第二减少部分减少不被第一减少部分减小的样本矢量,并且将缩小的矢量移动到堆叠部分。 第三减少部分减少在第一和第二缩减部分中未减少的样本矢量和矢量的组合,合并堆叠部分中的矢量和第二矢量存储部分中的矢量,从其中检测最短矢量,并输出 检测结果中全部的最短向量。
    • 95. 发明专利
    • Terminal, access control method, and program
    • 终端,访问控制方法和程序
    • JP2014178727A
    • 2014-09-25
    • JP2013050464
    • 2013-03-13
    • Kddi CorpKddi株式会社
    • NAKAMURA TORUKIYOMOTO SHINSAKUWATANABE TATSUMIYAKE MASARU
    • G06F21/62
    • PROBLEM TO BE SOLVED: To perform access control with predetermined granularity without modifying a permission mechanism in a certain open platform.SOLUTION: An application processes data communication with an application server, and executes a unique processing operation of the application. The application detects user access to a resource. When detecting the user accessing the resource, the application refers to an access policy of the user. On the basis of the referred user access policy, determination processing is performed as to whether to permit the user to access the resource, as interrupt processing.
    • 要解决的问题:以特定的开放式平台来修改权限机制,以预定的粒度执行访问控制。解决方案:应用程序处理与应用程序服务器的数据通信,并执行应用程序的独特处理操作。 该应用程序检测用户对资源的访问。 当检测到用户访问资源时,应用程序是指用户的访问策略。 基于参考用户访问策略,执行关于是否允许用户访问资源的确定处理作为中断处理。
    • 96. 发明专利
    • Anonymous data generating device, anonymous data generating method, and program
    • 无声数据生成装置,无声数据生成方法和程序
    • JP2013114445A
    • 2013-06-10
    • JP2011259881
    • 2011-11-29
    • Kddi CorpKddi株式会社
    • KIYOMOTO SHINSAKUMIYAKE MASARU
    • G06F17/30G06F21/60G06Q30/02G09C1/00
    • PROBLEM TO BE SOLVED: To provide, regarding anonymization of data, an anonymous data generating device, an anonymous data generating method, and a program that are applicable even to data involving a plurality of attributes and relationship of dependence (sequentiality) among them, such as behavioral histories of users.SOLUTION: A graph preparing unit prepares a plurality of graphs that reflect relationship of dependence or sequentiality among nodes representing individual behaviors of a plurality of users and the behaviors and link the nodes; a graph merging unit extracts from the plurality of graphs the same parts and superpose them to transform the graphs into a single graph; and a deletion processing unit deletes, in the presence of nodes having less than K (K is a positive integer) branches and having any downstream node having less than K branches, the downstream node of any such node.
    • 要解决的问题:为了提供关于匿名数据的匿名数据生成装置,匿名数据生成方法和程序,甚至可以应用于涉及多个属性的数据和依赖关系(顺序性)之间的关系 他们,如用户的行为史。 解决方案:图形准备单元准备反映表示多个用户的各个行为的节点之间的依赖性或顺序性的关系的多个图形,以及链接节点; 图形合并单元从多个图形中提取相同的部分并叠加它们以将图形变换为单个图形; 并且删除处理单元在存在小于K(K是正整数)的节点的情况下删除,并且具有小于K个分支的任何下游节点,任何这样的节点的下游节点。 版权所有(C)2013,JPO&INPIT
    • 97. 发明专利
    • Ciphering device of stream cipher, deciphering device of stream cipher, ciphering method of stream cipher, deciphering method of stream cipher, and program
    • 流水器的设备,流水机的分解装置,流水器的加油方法,流水器的分解方法和程序
    • JP2013098722A
    • 2013-05-20
    • JP2011239228
    • 2011-10-31
    • Kddi CorpKddi株式会社
    • FUKUSHIMA KAZUHIDEKIYOMOTO SHINSAKUMIYAKE MASARU
    • H04L9/20
    • PROBLEM TO BE SOLVED: To utilize a stream cipher for content requiring fast forward, rewind, and midway reproduction.SOLUTION: A ciphering device 100 of the stream cipher includes: an internal memory 110 for storing an initial key and an initial vector; a division section 120 for dividing plaintext into blocks of a prescribed size; a generation section 130 for generating the initial vectors for the respective blocks on the basis of numerical values for identifying the respective blocks divided in the division section 120 and the initial vector stored in the internal memory 110; a ciphering section 140 for ciphering the respective blocks divided in the division section 120 on the basis of the initial vectors generated in the generation section 130 for the respective blocks and the initial key stored in the internal memory 110; and a connection section 150 for generating a cipher text by connecting the respective blocks ciphered in the ciphering section 140.
    • 要解决的问题:对要求快进,快退和中途再现的内容使用流密码。 解密:流密码的加密设备100包括:用于存储初始密钥和初始向量的内部存储器110; 用于将明文分割成规定尺寸的块的划分部分120; 生成部分130,用于根据用于识别在分割部分120中划分的各个块的数值和存储在内部存储器110中的初始向量来生成各个块的初始向量; 加密部分140,用于根据在各个块的生成部分130中生成的初始向量和存储在内部存储器110中的初始密钥来对分割部分120中划分的各个块进行加密; 以及连接部分150,用于通过连接加密部分140中加密的各个块来生成密文。(C)2013,JPO和INPIT
    • 98. 发明专利
    • Algorithm variable mac generation device, algorithm variable hash function generation device, algorithm variable mac generation method, algorithm variable hash function generation method and program
    • 算法可变MAC生成装置,可变哈希函数生成装置,算法可变MAC生成方法,算法可变哈希函数生成方法和程序
    • JP2013097161A
    • 2013-05-20
    • JP2011239651
    • 2011-10-31
    • Kddi CorpKddi株式会社
    • FUKUSHIMA KAZUHIDEKIYOMOTO SHINSAKUMIYAKE MASARU
    • G09C1/00H04L9/14
    • PROBLEM TO BE SOLVED: To provide an algorithm variable MAC generation device, an algorithm variable hash function generation device, an algorithm variable MAC generation method, an algorithm variable hash function generation method and a program which can change algorithm by bit information of a key while ensuring security.SOLUTION: An algorithm variable MAC generation device 1 comprises a round function processing part 100 which executes prescribed processing once or more to each of a plurality of data groups in which inputted data is delimited by a prescribed bit, and a termination processing part 200 which executes exclusive OR operation to the plurality of data groups to which processing is executed in the round function processing part 100 and generates MAC with a prescribed length. The round function processing part 100 is composed of a part in which algorithm changes corresponding to bit information of an inputted key and a part in which algorithm is always fixed.
    • 要解决的问题:提供一种算法变量MAC生成装置,算法变量散列函数生成装置,算法变量MAC生成方法,算法变量散列函数生成方法以及可以通过位信息改变算法的程序 确保安全性的关键。 解决方案:算法变量MAC生成装置1包括循环函数处理部100,该循环函数处理部100对输入的数据由规定位分隔的多个数据组中的每一个执行一次以上的规定处理,以及终止处理部 200,其对在循环函数处理部100中执行了处理的多个数据组执行异或运算,并生成规定长度的MAC。 循环函数处理部100由与输入的键的位信息和算法总是固定的部分对应的算法变化的部分构成。 版权所有(C)2013,JPO&INPIT
    • 100. 发明专利
    • Encryption device of stream cipher, decryption device of stream cipher, encryption method of stream cipher, decryption method of stream cipher, and program
    • 流水龙头的加密装置,流水器的分解装置,流水槽的加密方法,流水槽的分解方法和程序
    • JP2012235287A
    • 2012-11-29
    • JP2011102049
    • 2011-04-28
    • Kddi CorpKddi株式会社
    • KIYOMOTO SHINSAKUMIYAKE MASARU
    • H04L9/24
    • PROBLEM TO BE SOLVED: To provide an encryption device of stream cipher, a decryption device of stream cipher, an encryption method of stream cipher, a decryption method of stream cipher and a program that implement secure and efficient authentication.SOLUTION: An initial key and an initial vector are read in, and an initialization process is performed. A key sequence generation process is next performed to generate a key sequence, an exclusive OR operation is executed on the generated key sequence and a plaintext to generate a ciphertext, and the generated ciphertext is sequentially input into two divided message authenticator creating memories and a circulation is performed with the plaintext all at zero after the input of the plaintext. After the circulation, values of the two divided message authenticator memories are combined into a message authenticator, and the message authenticator is attached to the ciphertext to be output.
    • 要解决的问题:提供流密码的加密装置,流密码的解密装置,流密码的加密方法,流密码的解密方法以及实现安全有效的认证的程序。 解决方案:读入初始键和初始向量,并执行初始化过程。 接下来执行密钥序列生成处理以生成密钥序列,对生成的密钥序列执行异或运算,并生成明文以生成密文,并且生成的密文被顺序地输入到两个分割的消息认证器创建存储器和循环 在明文输入之后,明文全部都为零执行。 在循环之后,将两个分割的消息认证器存储器的值组合成消息认证器,并且将消息认证器附加到要输出的密文。 版权所有(C)2013,JPO&INPIT