公开(公告)号：US20080301439A1

公开(公告)日：2008-12-04

申请号：US12105358

申请日：2008-04-18

申请人： Yoko HASHIMOTO ,  Takahiro Fujishiro ,  Masahiko Furuya ,  Masami Uzawa

发明人： Yoko HASHIMOTO ,  Takahiro Fujishiro ,  Masahiko Furuya ,  Masami Uzawa

IPC分类号： H04L9/06

CPC分类号： H04L9/3268 ,  H04L63/06

摘要： A technique of managing public keys updated by a certificate authority and a plurality of hash algorithms is provided.Identifiers, each of which is uniquely determined by a pair of a public key updated by a certificate authority and a hash algorithm, are stored in an identifier information storage area (131b). A verification processing part (132c) cross-checks a received validation request and the identifiers stored in the identifier information storage area (131b). When there is an identifier corresponding to the received validation request, the verification processing part (132c) judges that the verification can be performed, and continues the verification processing.

摘要翻译： 提供了一种管理由证书颁发机构更新的公共密钥和多个散列算法的技术。 标识符，每个标识符由认证机构更新的一对公钥和散列算法唯一地确定，被存储在标识符信息存储区域（131b）中。 验证处理部分（132c）交叉检查接收到的确认请求和存储在标识符信息存储区域（131b）中的标识符。 当存在对应于接收到的确认请求的标识符时，验证处理部分（132c）判断可以执行验证，并继续验证处理。

公开(公告)号：US20080189351A1

公开(公告)日：2008-08-07

申请号：US11849554

申请日：2007-09-04

申请人： Shigeyuki Nemoto ,  Takahiro Fujishiro ,  Ayumi Kawano ,  Keiji Morita

发明人： Shigeyuki Nemoto ,  Takahiro Fujishiro ,  Ayumi Kawano ,  Keiji Morita

IPC分类号： G06F15/16

CPC分类号： H04L67/104 ,  H04L63/0823 ,  H04L67/1065

摘要： To reduce a load inflicted on a network by peer-to-peer communication between terminals, the present invention provides a network system having a communication destination machine and a communication source machine, in which: the communication destination machine includes a unit which registers its own location information in a peer-to-peer network; and the communication source machine includes: a unit which searches the peer-to-peer network for the location information of the communication destination machine and obtains the location information; and a unit which uses the obtained information to establish peer-to-peer communication. The location information contains communication path information which enables the communication source machine to communicate with a desired machine beyond a path controller, and a parameter necessary for communication. The communication source machine may include a unit which accumulates location information or similar data of multiple communication destination machines.

摘要翻译： 为了减少在终端之间通过对等通信在网络上造成的负载，本发明提供了一种具有通信目的地机器和通信源机器的网络系统，其中：通信目的地机器包括一个注册其自身的单元 点对点网络中的位置信息; 并且所述通信源机器包括：在所述对等网络中搜索所述通信目的地机器的位置信息并获取所述位置信息的单元; 以及使用所获得的信息来建立对等通信的单元。 位置信息包含通信路径信息，其使通信源机器能够与路径控制器之外的所需机器通信，以及通信所需的参数。 通信源机器可以包括累积多个通信目的地机器的位置信息或类似数据的单元。

公开(公告)号：US08819417B2

公开(公告)日：2014-08-26

申请号：US13407376

申请日：2012-02-28

申请人： Yoko Hashimoto ,  Takahiro Fujishiro ,  Masahiko Furuya ,  Masami Uzawa ,  Shingo Hane ,  Akane Sato

发明人： Yoko Hashimoto ,  Takahiro Fujishiro ,  Masahiko Furuya ,  Masami Uzawa ,  Shingo Hane ,  Akane Sato

IPC分类号： H04L29/06

CPC分类号： H04L63/166 ,  H04L63/0485 ,  H04L63/0823

摘要： A validation server using HSM, which reduces required process time from receiving a validation request to responding with a validation result, and comprises a first software cryptographic module 142 and a second software cryptographic module 143 on a validation server 130 whose HSM is coupled with an I/F part 148. According to the validation server, load states of HSM, the first software cryptographic module 142 and the second software cryptographic module 143 are monitored by a cryptographic module monitor unit 141, and when cryptographic calculations in a validation process of certificates are conducted, the cryptographic calculations are executed by using the least loaded cryptographic module selected at a cryptographic module selector unit 140.

摘要翻译： 使用HSM的验证服务器，其减少从接收验证请求到响应验证结果所需的处理时间，并且包括验证服务器130上的第一软件加密模块142和第二软件加密模块143，其中HSM与I / F部分148.根据验证服务器，HSM的加载状态，第一软件加密模块142和第二软件加密模块143由加密模块监视单元141监视，并且当证书的验证过程中的密码计算是 通过使用在加密模块选择器单元140处选择的最少加密的加密模块来执行加密计算。

公开(公告)号：US20140149740A1

公开(公告)日：2014-05-29

申请号：US14119401

申请日：2012-07-10

申请人： Chinatsu Sato ,  Akane Suzuki ,  Takahiro Fujishiro

发明人： Chinatsu Sato ,  Akane Suzuki ,  Takahiro Fujishiro

IPC分类号： H04L9/32

CPC分类号： H04L9/3268 ,  G06F21/335 ,  H04L9/006

摘要： On the basis of revocation information of a certificate, information of a certification authority and of the certificate issued by the certification authority from a terminal device, and information of a cryptographic algorithm, validity of the certificate from the terminal device is determined. If the certificate is valid, a validation result treating the certificate as valid is created, and using information of the cryptographic algorithm from the terminal device and information of the cryptographic algorithm used for the signature of the certification authority which has been imparted to the revocation information of the certificate, a selection list of cryptographic algorithms used for the response signature to impart to the verification result of the certificate is created to determine the cryptographic algorithm used for the response signature to impart the verification result of the certificate on the basis of the created list and the cryptographic algorithms capable of being accommodated by the verification server.

摘要翻译： 基于证书的撤销信息，证书颁发机构的信息和证书颁发机构从终端装置发出的证书的信息，以及密码算法的信息，确定来自终端装置的证书的有效性。 如果证书是有效的，则将证书认定为有效的验证结果，并且使用来自终端设备的加密算法的信息和用于已被赋予撤销信息的认证机构的签名的密码算法的信息 创建用于响应签名的加密算法的选择列表以赋予证书的验证结果，以确定用于响应签名的加密算法，以便基于创建的证书来传递证书的验证结果 列表和能够由验证服务器容纳的加密算法。

公开(公告)号：US08229668B2

公开(公告)日：2012-07-24

申请号：US12774105

申请日：2010-05-05

申请人： Takashi Kawauchi ,  Takahiro Fujishiro ,  Yuki Horita ,  Kazuya Monden

发明人： Takashi Kawauchi ,  Takahiro Fujishiro ,  Yuki Horita ,  Kazuya Monden

IPC分类号： G01C21/00

CPC分类号： G08G1/163 ,  G01S5/0072 ,  H04W16/08 ,  H04W52/28 ,  H04W52/282 ,  H04W52/283 ,  H04W84/18

摘要： The present invention provides a vehicle communication system by which even when the number of other vehicles around a traffic line is increased, it is possible to prevent occurrence of a situation that there are located vehicles the number of which is larger than the capacity of a communicable network, and it is possible to secure communications with the other vehicles. Even when it is determined that a host vehicle enters in a traffic line and a plurality of other vehicles the number of which is larger than a threshold value are located in front and rear virtual regions of the host vehicle, a transmission power is reduced to the extent that communications between the host vehicle and one of the other vehicles that is located furthest in the virtual regions can be secured.

摘要翻译： 本发明提供一种车辆通信系统，即使在交通线路周围的其他车辆的数量增加的情况下，也可以防止发生车辆数量大于通信线路容量的情况 网络，并且可以确保与其他车辆的通信。 即使当确定主车辆进入交通线路并且其数量大于阈值的多个其他车辆位于主车辆的前后虚拟区域中时，发送功率被减少到 可以确保主车辆与虚拟区域中最远的其他车辆之间的通信。

公开(公告)号：US20110231662A1

公开(公告)日：2011-09-22

申请号：US13021655

申请日：2011-02-04

申请人： AKANE SATO ,  Takahiro Fujishiro ,  Masahiko Furuya ,  Masami Ogawa

发明人： AKANE SATO ,  Takahiro Fujishiro ,  Masahiko Furuya ,  Masami Ogawa

IPC分类号： H04L9/32

CPC分类号： H04L9/3268 ,  H04L9/006 ,  H04L9/0891 ,  H04L9/321 ,  H04L9/3247 ,  H04L9/3265

摘要： The validation server obtains information related to a first cryptographic method from a certificate which is contained in a certificate validation request from a terminal device. When the information related to the first cryptographic method is not stored in a storage unit of the validation server as valid information, the validation server determines that the information related to the first cryptographic method is invalid. When the information related to the first cryptographic method is stored in the storage unit as valid information and also the information related to a second cryptographic method listed in the certificate in the certification path is not stored in the storage unit during the certification path validation, the validation server determines that the information related to the second cryptographic method is invalid.

摘要翻译： 验证服务器从终端设备的证书验证请求中包含的证书中获取与第一密码方法相关的信息。 当与第一密码方法相关的信息没有作为有效信息存储在验证服务器的存储单元中时，验证服务器确定与第一密码方法相关的信息是无效的。 当与第一密码方法有关的信息作为有效信息存储在存储单元中时，并且在认证路径验证期间，在认证路径中的证书中列出的与第二密码方法相关的信息不存储在存储单元中时， 验证服务器确定与第二密码方法相关的信息是无效的。

公开(公告)号：US07958367B2

公开(公告)日：2011-06-07

申请号：US12149026

申请日：2008-04-25

申请人： Tadaoki Uesugi ,  Takahiro Fujishiro ,  Takeshi Akutsu ,  Hisanori Mishima

发明人： Tadaoki Uesugi ,  Takahiro Fujishiro ,  Takeshi Akutsu ,  Hisanori Mishima

IPC分类号： H04L9/32 ,  H04N1/44

CPC分类号： H04L9/3263 ,  G06F21/645 ,  H04L9/3247 ,  H04L2209/60 ,  H04L2209/80

摘要： When a document creation unit 1 is started, it calculates a hash value of each software piece therein and stores the hash value in a hash value holder 71 and a measurement log document holder 44. The document creation unit 1 accesses a time distribution unit plural times to receive time information therefrom, and records the time information in a log document and a measurement log document. The document creation unit 1 transmits the log document, the measurement log document, and digital signature-embedded hash value information (measurement auxiliary document) in a tamper-resistant device 63 to a document reception device. The document reception device verifies matching of the hash values or digital signature in the document group, confirms software operating environments in the document creation unit 1 from the hash values, and determines whether the time information is correctly managed within the unit 1.

摘要翻译： 当文档创建单元1启动时，它计算每个软件的哈希值，并将散列值存储在散列值保持器71和测量日志文档保持器44中。文档创建单元1多次访问时间分配单元 从其接收时间信息，并将时间信息记录在日志文档和测量日志文档中。 文档创建单元1将防篡改设备63中的日志文档，测量日志文档和数字签名嵌入散列值信息（测量辅助文档）发送到文档接收设备。 文档接收装置验证文档组中的哈希值或数字签名的匹配，从哈希值确认文档创建单元1中的软件操作环境，并确定在单元1内是否正确地管理时间信息。

公开(公告)号：US5521633A

公开(公告)日：1996-05-28

申请号：US126298

申请日：1993-09-24

申请人： Masato Nakajima ,  Takahiro Fujishiro ,  Norio Kitamura ,  Kazuyuki Sasaki ,  Takahiro Oikawa ,  Kouji Ishii

发明人： Masato Nakajima ,  Takahiro Fujishiro ,  Norio Kitamura ,  Kazuyuki Sasaki ,  Takahiro Oikawa ,  Kouji Ishii

IPC分类号： B60Q1/52 ,  G01S11/12 ,  G06K9/00 ,  G06T7/20 ,  H04N7/18

CPC分类号： B60Q9/008 ,  B60R1/00 ,  G06K9/00805 ,  G06T7/2013 ,  G06T7/2033 ,  B60G2401/142 ,  B60W2550/10 ,  B60W2550/308 ,  G01S11/12 ,  G06T2207/10016 ,  G06T2207/30236 ,  G06T2207/30248

摘要： A monitoring method for moving vehicles allows the presence of danger to be determined from the magnitude of an optical flow vector. The optical flow vector is detected as a movement of a single point on an object taken over two images, with one image taken at a preceding time and the other image taken at succeeding time in a series of images. A long and narrow window set in a radial direction from a focus of expansion (FOE) of the earlier image is moved in the same direction on the latter image. An optical flow vector of a target point is defined by a vector connecting the midpoint of a location of a subsequent window and the midpoint of a location at which the long and narrow window is set in the earlier image. The location of the subsequent window is determined by minimizing the sum of absolute values of differences in luminance between the long and narrow window and an area of the latter image overlapping such long and narrow window. The optical flow calculation area is limited to areas in which a difference in luminance between the earlier and latter images exceeds a predetermined threshold, and any influence from scenes outside the road boundaries and from lane-dividing lines or other symbols drawn on the road surface is removed in calculating the optical flow.

摘要翻译： 用于移动车辆的监视方法允许根据光流矢量的大小确定危险的存在。 光流矢量被检测为在两个图像上拍摄的物体上的单个点的移动，其中在先前时间拍摄一个图像，并且在一系列图像中在随后的时间拍摄另一个图像。 从较早的图像的扩展焦点（FOE）沿径向设置的长而窄的窗口在后一图像上沿相同的方向移动。 目标点的光流向量由连接后续窗口的位置的中点和在较早的图像中设置长而窄的窗口的位置的中点的向量定义。 后续窗口的位置通过最小化长和窄窗口之间的亮度差的绝对值与后一图像的与这样长而窄的窗口重叠的区域的绝对值之和来确定。 光流计算区域限于前者和后一图像之间的亮度差异超过预定阈值的区域，并且道路边界以外的场景和路面划分线或其他路面上绘制的其他符号的任何影响是 在计算光流时被去除。

公开(公告)号：US09325509B2

公开(公告)日：2016-04-26

申请号：US14119401

申请日：2012-07-10

申请人： Chinatsu Sato ,  Akane Suzuki ,  Takahiro Fujishiro

发明人： Chinatsu Sato ,  Akane Suzuki ,  Takahiro Fujishiro

IPC分类号： H04L29/06 ,  H04L9/32 ,  H04L9/00 ,  G06F21/33

CPC分类号： H04L9/3268 ,  G06F21/335 ,  H04L9/006

摘要： On the basis of revocation information of a certificate, information of a certification authority and of the certificate issued by the certification authority from a terminal device, and information of a cryptographic algorithm, validity of the certificate from the terminal device is determined. If the certificate is valid, a validation result treating the certificate as valid is created, and using information of the cryptographic algorithm from the terminal device and information of the cryptographic algorithm used for the signature of the certification authority which has been imparted to the revocation information of the certificate, a selection list of cryptographic algorithms used for the response signature to impart to the verification result of the certificate is created to determine the cryptographic algorithm used for the response signature to impart the verification result of the certificate on the basis of the created list and the cryptographic algorithms capable of being accommodated by the verification server.

摘要翻译： 基于证书的撤销信息，证书颁发机构的信息和证书颁发机构从终端装置发出的证书的信息，以及密码算法的信息，确定来自终端装置的证书的有效性。 如果证书是有效的，则将证书认定为有效的验证结果，并且使用来自终端设备的加密算法的信息和用于已被赋予撤销信息的认证机构的签名的密码算法的信息 创建用于响应签名的加密算法的选择列表以赋予证书的验证结果，以确定用于响应签名的加密算法，以便基于创建的证书来传递证书的验证结果 列表和能够由验证服务器容纳的加密算法。

公开(公告)号：US20100122081A1

公开(公告)日：2010-05-13

申请号：US12542798

申请日：2009-08-18

申请人： Akane Sato ,  Yoko Hashimoto ,  Shingo Hane ,  Takahiro Fujishiro ,  Masahiko Furuya ,  Masami Uzawa

发明人： Akane Sato ,  Yoko Hashimoto ,  Shingo Hane ,  Takahiro Fujishiro ,  Masahiko Furuya ,  Masami Uzawa

IPC分类号： H04L9/00

CPC分类号： H04L63/0823 ,  H04L9/0891 ,  H04L9/321 ,  H04L9/3263

摘要： In response to a validation request that includes second information identifying the certificate authority, key information of the certificate authority at issuance of the public key certificate, and information identifying the public key certificate, if the second information identifying the certificate authority included in the validation request corresponds to the first information identifying the certificate authority included in the authority certificate, and the information identifying the public key certificate included in the validation request does not exist in the revocation information, the validation server creates a validation result indicating that the public key certificate corresponding to the information identifying the public key certificate included in the validation request is valid.

摘要翻译： 响应于包括标识证书颁发机构的第二信息的确认请求，在发行公共密钥证书时的证书颁发机构的密钥信息和识别公开密钥证书的信息，如果识别包括在验证请求中的证书颁发机构的第二信息 对应于识别权限证书中包含的证书颁发机构的第一信息，并且识别包含在验证请求中的公钥证书的信息不存在于撤销信息中，验证服务器创建指示公钥证书对应的验证结果 识别包含在验证请求中的公钥证书的信息是有效的。