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121. 发明专利

JP2009111443A Attribute authenticating system, and attribute authentication method and program of the system 有权
标题翻译：属性认证系统及其系统认证方法及程序
公开(公告)号：JP2009111443A
公开(公告)日：2009-05-21
申请号：JP2007278371
申请日：2007-10-26
申请人： Kddi Corp , Kddi株式会社
发明人： KIYOMOTO SHINSAKU , TANAKA TOSHIAKI
IPC分类号： H04L9/32
摘要： PROBLEM TO BE SOLVED: To reduce the operation load, while attaining forward security.
SOLUTION: A user generates two secret keys and generates an open key therefrom. A CA signs the open key that the user generates with own signature key and issues an attribute certificate. The user transmits a request to provide service to an SP server, which generates its own secret key and an open key. Furthermore, a challenge computed based on a generated random number (r) is transmitted to the user. The user modifies the attribute certificate and two secret key by using a generated random number (f), and uses the modified secret keys to calculate a signature value for the challenge received from the SP server. Also, the modified attribute certificate and calculated signature value are transmitted to the SP server. The SP server verifies the received attribute certificate and signature value and confirms invalidation, and then to provide service, based on attribute information.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了降低运行负荷，同时实现正向安全。
解决方案：用户生成两个密钥，并从中生成一个打开的密钥。 CA使用自己的签名密钥签名用户生成的打开密钥，并发出属性证书。用户向SP服务器发送提供服务的请求，SP服务器产生其自己的秘密密钥和打开密钥。此外，基于生成的随机数（r）计算的挑战被发送给用户。用户通过使用生成的随机数（f）来修改属性证书和两个秘密密钥，并使用经修改的秘密密钥来计算从SP服务器接收的质询的签名值。此外，修改的属性证书和计算的签名值被发送到SP服务器。 SP服务器验证接收的属性证书和签名值，并确认无效，然后根据属性信息提供服务。版权所有（C）2009，JPO＆INPIT

122. 发明专利

JP2009065345A Method of covering client terminal in sd method and program 有权
标题翻译：客户终端在SD方法和程序中的覆盖方法
公开(公告)号：JP2009065345A
公开(公告)日：2009-03-26
申请号：JP2007230275
申请日：2007-09-05
申请人： Kddi Corp , Kddi株式会社
发明人： FUKUSHIMA KAZUHIDE , KIYOMOTO SHINSAKU , TANAKA TOSHIAKI
IPC分类号： H04L9/08
摘要： PROBLEM TO BE SOLVED: To provide a method of covering a client terminal in an SD method which is applicable even to an SD method having an optional tree structure, is easily mounted and has little processing load.
SOLUTION: Such nodes, the all of brother nodes of which are leaf nodes are selected, and the nodes are represented as v
1 , v
2 , ..., v
m (1≤m≤n), while a master node is as p. In the case of m=n, nodes v
1 , v
2 , ..., v
m are eliminated from T, and in the case of m 1 , v
2 , ..., v
m and is represented as (a), a subset difference tree is added to a set S, and all nodes located in lower orders of (a) are eliminated from T. Whereas, in the case of m
摘要翻译：要解决的问题：提供一种以SD方式覆盖客户终端的方法，该方法甚至可应用于具有可选树结构的SD方法，易于安装并且处理负担小。
解决方案：选择这些节点，其所有兄弟节点都是叶节点，节点被表示为v 1 ，v 2 ，... ，v m （1≤m≤n），而主节点为p。在m = n的情况下，从T中消除节点v 1 ，v 2 ，...，v m 在m 1，...，v，...，...的更高阶的节点之间搜索具有兄弟节点的最低阶节点＆lt; SB＆gt; m＆lt; / SB＆gt;并且表示为（a），子集差异树被添加到集合S，并且位于（a）的较低阶的所有节点从T中消除。而在m的情况下

123. 发明专利

JP2009033400A Transmitter, receiver, verification-information embedding method, and program 有权
标题翻译：发射机，接收机，验证信息嵌入方法和程序
公开(公告)号：JP2009033400A
公开(公告)日：2009-02-12
申请号：JP2007194422
申请日：2007-07-26
申请人： Kddi Corp , Kddi株式会社
发明人： KIYOMOTO SHINSAKU , KURIHARA ATSUSHI , TANAKA TOSHIAKI
IPC分类号： H04L9/08
摘要： PROBLEM TO BE SOLVED: To inexpensively and efficiently transmit information to be shared by a public-key infrastructure while utilizing broadcast services.
SOLUTION: A broadcast-content generating means generates broadcast content. An information embedding means embeds information to be shared by a public-key infrastructure in the broadcast content. A transmitting means transmits the broadcast content, embedded with the information to be shared by a public-key infrastructure, to a receiver. Meanwhile, a receiving means receives the broadcast content. An information acquisition means acquires the information to be shared by a public-key infrastructure from the received broadcast content. A verification means performs revocation check or verification of various certificates or the like on the basis of the acquired information.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：在利用广播服务的同时，要廉价和有效地传输由公共密钥基础设施共享的信息。广播内容生成装置生成广播内容。信息嵌入装置将广播内容中的公开密钥基础设施共享的信息嵌入。发送装置将嵌入有要由公钥基础设施共享的信息的广播内容发送到接收机。同时，接收装置接收广播内容。信息获取装置从接收的广播内容中获取要由公钥基础设施共享的信息。验证装置根据获取的信息执行各种证书等的撤销检查或验证。版权所有（C）2009，JPO＆INPIT

124. 发明专利

JP2009021765A Secret information restoring apparatus and method, and program 有权
标题翻译：秘密信息恢复装置和方法及程序
公开(公告)号：JP2009021765A
公开(公告)日：2009-01-29
申请号：JP2007182070
申请日：2007-07-11
申请人： Kddi Corp , Kddi株式会社
发明人： KURIHARA ATSUSHI , KIYOMOTO SHINSAKU , TANAKA TOSHIAKI
IPC分类号： H04L9/08 , G06F21/24
摘要： PROBLEM TO BE SOLVED: To ensure high speed restoring in a (k, n) threshold variance method using XOR.
SOLUTION: In a secret information restoring apparatus, a partial variance information creation means 21 inputs variance information of k (k is a positive integer), and creates partial variance information of k(n
p -1) (n
p is a positive integer). A matrix creation means 22 inputs index numbers t
0 , t
1 , to t
k-1 (0≤t
0 , t
1 , to t
k-1 ≤k-1), corresponding to k pieces of variance information and creates a matrix showing combination of the partial variance information for restoring the partial secret information K
1 , to K
np-1 . A restoring means 23 applies the created matrix to the partial variance information, and restores the partial secret information, and a connection means 24 connects the restored partial secret information, and creates the original secret information K.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：使用XOR确保（k，n）阈值方差法的高速恢复。解密：在秘密信息恢复装置中，部分方差信息创建装置21输入k（k为正整数）的方差信息，并创建k（n p < 1）（n p 是正整数）。矩阵创建装置22将索引号t 0 ，t 1输入到t k-1 （0≤t 0 < 对应于k个方差信息，并且创建一个矩阵，表示组合的部分方差信息，用于将部分秘密信息K 1 恢复到K np-1 。恢复装置23将创建的矩阵应用于部分方差信息，并恢复部分秘密信息，连接装置24连接恢复的部分秘密信息，并创建原始秘密信息K.版权所有（C）2009 ，JPO＆INPIT

125. 发明专利

JP2008288750A Distributed information generation device, confidential information recover device, distributed information generation method, confidential information recover method, and program 有权
标题翻译：分发信息生成设备，保密信息恢复设备，分布式信息生成方法，机密信息恢复方法和程序
公开(公告)号：JP2008288750A
公开(公告)日：2008-11-27
申请号：JP2007130074
申请日：2007-05-16
申请人： Kddi Corp , Kddi株式会社
发明人： KURIHARA ATSUSHI , KIYOMOTO SHINSAKU , TANAKA TOSHIAKI , MIZUMOTO MASAHIRO
IPC分类号： H04L9/08 , G06F21/24
摘要： PROBLEM TO BE SOLVED: To provide a secure distributed information generation device etc. capable of reducing the amount of network communication capacity and the amount of storage used in an arbitrary volume. SOLUTION: Confidential information S is divided into two pieces of information composed of information sizes A and B. While the divided information A is distributed into n pieces of distributed information W 0 ... W n-1 , the divided information B is reproduced to generate L information. The L pieces of distributed information W n-L ... W n-1 are extracted out of the distributed n pieces of distributed information and connected with the reproduced L pieces of information to generate connection information. Then, the distributed n-L pieces of distributed information W 0 ... W n-L-1 are transmitted to a first node group, and the generated L pieces of connection information are transmitted to a second node group. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够减少网络通信容量的量和在任意卷中使用的存储量的安全分布式信息生成装置等。
解决方案：机密信息S被分为由信息大小A和B组成的两条信息。分割信息A分布为n个分布信息W 0 ... W < SB> n-1 ，再生分割信息B以生成L信息。从分散的n条分散信息中提取出L个分布信息W nL ... W n-1 ，并与再现的L条信息相连接生成连接信息。然后，向第一节点组发送分布的nL个分散信息W 0 ... W nL-1 ，生成的L个连接信息被发送到第二节点组。版权所有（C）2009，JPO＆INPIT

126. 发明专利

JP2008286964A Encryption apparatus, decryption apparatus, encryption method, decryption method and program for stream encryption 有权
标题翻译：加密装置，分解装置，加密方法，分解方法和流程加密程序
公开(公告)号：JP2008286964A
公开(公告)日：2008-11-27
申请号：JP2007131222
申请日：2007-05-17
申请人： Kddi Corp , Kddi株式会社
发明人： KIYOMOTO SHINSAKU , TANAKA TOSHIAKI
IPC分类号： G09C1/00
摘要： PROBLEM TO BE SOLVED: To provide an encryption apparatus and the like for stream encryption capable of proving its sufficient security and capable of high-speed processing.
SOLUTION: An initial key and an initial vector are read into a register in a memory, and the initial key and the initial vector that are read are stirred in the memory. Next, a rule bit for defining the value to be selected out of the register in the memory is input into a key sequence generating function and, according to the rule bit, the key sequence generating function selects a specific value out of the register in the memory. Then, addition or multiplication of all the values selected by the key sequence generating function is performed, and the results of the mathematical operation are divided by the data size of the key sequence to obtain the remainder. This remainder is output as a key sequence and, at this time, the value of the register in the memory is renewed. Then, by executing an exclusive OR operation of the key sequence output by the key sequence generating function and a plain text, encryption is carried out.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供用于流加密的加密装置等，以证明其足够的安全性并且能够进行高速处理。解决方案：将初始键和初始向量读入存储器中的寄存器，并将读取的初始键和初始向量在存储器中进行搅拌。接下来，将用于将从存储器中的寄存器中选择的值定义的规则位被输入到键序列生成函数中，并且根据规则位，键序列生成函数从存储器中的寄存器中选择特定值记忆。然后，执行由键序列生成函数选择的所有值的加法或乘法，并将数学运算的结果除以键序列的数据大小以获得余数。该余数作为键序列输出，此时，存储器中寄存器的值被更新。然后，通过执行由密钥序列生成函数和纯文本输出的密钥序列的异或运算，进行加密。版权所有（C）2009，JPO＆INPIT

127. 发明专利

JP2008228028A System, method and program for attribute authentication in ip telephone network 审中-公开
标题翻译： IP电话网络中用于属性认证的系统，方法和程序
公开(公告)号：JP2008228028A
公开(公告)日：2008-09-25
申请号：JP2007064832
申请日：2007-03-14
申请人： Kddi Corp , Kddi株式会社
发明人： KIYOMOTO SHINSAKU , TANAKA TOSHIAKI
IPC分类号： H04M11/00
摘要： PROBLEM TO BE SOLVED: To securely check attributes of a communication partner in an IP telephone network.
SOLUTION: An attribute authentication system is composed of a calling-side IP telephone, an incoming call-side IP telephone and an attribute authentication server connected through the IP telephone network. The attribute authentication server has: a means for distributing attribute information to the calling-side IP telephone; and the calling-side IP telephone transmits attribute information on the calling-side IP telephone to the incoming call-side telephone when connected. The incoming call-side IP telephone has: a means for receiving attribute information on the calling-side IP telephone; a means for verifying the received attribute information on the calling-side IP telephone; and a means for displaying the verification result.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：安全地检查IP电话网络中的通信伙伴的属性。解决方案：属性认证系统由主叫侧IP电话，来电侧IP电话和通过IP电话网络连接的属性认证服务器组成。属性认证服务器具有：向主叫侧IP电话分配属性信息的手段; 并且主叫侧IP电话在连接时将主叫侧IP电话上的属性信息发送到呼入侧电话。来电侧IP电话具有：用于在主叫侧IP电话上接收属性信息的装置; 用于验证主叫侧IP电话上接收的属性信息的装置; 以及用于显示验证结果的装置。版权所有（C）2008，JPO＆INPIT

128. 发明专利

JP2008139742A Nonlinear function unit, ciphering device for stream cipher, deciphering device, mac generating device, ciphering method for stream cipher, deciphering method, mac generating method, and program 有权
标题翻译：非线性函数单元，用于流水池的分离设备，分离设备，MAC生成设备，流水池的生成方法，分解方法，MAC生成方法和程序
公开(公告)号：JP2008139742A
公开(公告)日：2008-06-19
申请号：JP2006327982
申请日：2006-12-05
申请人： Kddi Corp , Kddi株式会社
发明人： KIYOMOTO SHINSAKU , TANAKA TOSHIAKI
IPC分类号： G09C1/00
摘要： PROBLEM TO BE SOLVED: To provide a nonlinear function unit which enables safe fast processing to be performed, and a ciphering device for stream cipher using the same etc.
SOLUTION: The nonlinear function unit which inputs bit data of a random number series and outputs converted bit data from a plurality of internal memories 11 to 14 includes adders 15a and 15b which add the bit data of the input random number series to some of internal memory data of the plurality of internal memories, and nonlinear substituting units 16a to 16d which nonlinearly substitute the input data, the plurality of internal memories 11 to 14 being looped through at least the nonlinear substituting units 16a to 16d.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够进行安全快速处理的非线性功能单元，以及用于使用相同等级的流密码的加密装置。解决方案：输入一个从多个内部存储器11至14输出转换后的位数据，并将输入随机数序列的位数据加到多个内部存储器的一些内部存储器数据中的加法器15a和15b以及非线性替换单元 16a至16d，其非线性地替代输入数据，多个内部存储器11至14至少环绕非线性替换单元16a至16d。版权所有（C）2008，JPO＆INPIT

129. 发明专利

JP2008077400A Program-obfuscating method and program 有权
标题翻译：程序OBFUSCATING方法和程序
公开(公告)号：JP2008077400A
公开(公告)日：2008-04-03
申请号：JP2006255944
申请日：2006-09-21
申请人： Kddi Corp , Kddi株式会社
发明人： FUKUSHIMA KAZUHIDE , KIYOMOTO SHINSAKU , TANAKA TOSHIAKI
IPC分类号： G06F21/22
摘要： PROBLEM TO BE SOLVED: To provide a method for making a program difficult-to-read that can broadly be applied, not limitted to integer values, and a program therefor. SOLUTION: A series of commands, which are included in a source code, are cut out in units of blocks, and control variables for controlling execution order of the cut-out blocks are set. Then, values which the control variables should take are allocated to the respective cut-out blocks, and the cut-out blocks are arranged in parallel by using a "switch" sentence or an "if" sentence, and processing for rewriting the values of the control variables with values of control variables which are allocated to a block to be executed next is added to the last of the respective cut-out blocks to encode the control variables. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种可广泛应用的程序难以阅读的方法，而不限于整数值，以及其程序。
解决方案：源代码中包含的一系列命令以块为单位进行切割，并设置用于控制切出块的执行顺序的控制变量。然后，将控制变量应取的值分配给相应的切出块，并且通过使用“切换”句或“if”句并行排列切出块，并且重写值将分配给下一个要执行的块的控制变量的值的控制变量添加到相应切出块的最后一个以对控制变量进行编码。版权所有（C）2008，JPO＆INPIT

130. 发明专利

JP2008072417A Content distribution device for digital broadcasting, content authentication system for digital broadcasting, content authentication method for digital broadcasting, and program 有权
标题翻译：用于数字广播的内容分发设备，用于数字广播的内容认证系统，用于数字广播的内容认证方法和程序
公开(公告)号：JP2008072417A
公开(公告)日：2008-03-27
申请号：JP2006248894
申请日：2006-09-14
申请人： Kddi Corp , Kddi株式会社
发明人： KIYOMOTO SHINSAKU , TANAKA TOSHIAKI
IPC分类号： H04L9/32 , G09C1/00
摘要： PROBLEM TO BE SOLVED: To provide a content distribution device for digital broadcasting that achieves safe message-authentications in digital terrestrial broadcasting.
SOLUTION: A public key and a secret key are generated so as to transmit the generated public key to a receiving terminal. On the other hand, it is composed to generate a hash packet which calculates a hash value of a packet corresponding to an arbitrary number of digital broadcasting contents to be distributed so as to store it. It is also composed to generate a signature packet for storing a signature with respect to the hash value of the hash packet. The hash packet and the signature packet are inserted between packets of each digital broadcasting content at an arbitrary interval so as to generate a distribution packet. The generated distribution packet is transmitted to the receiving terminal.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供在数字地面广播中实现安全消息认证的数字广播的内容分发设备。解决方案：生成公钥和秘密密钥，以将生成的公钥发送到接收终端。另一方面，它被构成为产生一个哈希数据包，该哈希数据包计算与要分发的任意数量的数字广播内容相对应的数据包的哈希值，以便存储它。它还被组合以生成相对于散列分组的哈希值来存储签名的签名分组。散列分组和签名分组以任意间隔插入到每个数字广播内容的分组之间，以生成分发分组。所生成的分发分组被发送到接收终端。版权所有（C）2008，JPO＆INPIT

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