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30 条记录 (耗时 0.03 秒)

    Data transmitting apparatus and data authenticating method
    21.
    发明授权
    Data transmitting apparatus and data authenticating method 有权
    数据发送装置和数据认证方法

    公开(公告)号：US08732463B2

    公开(公告)日：2014-05-20

    申请号：US13227749

    申请日：2011-09-08

    申请人： Toshinari Takahashi ,  Fangming Zhao ,  Shinji Yamanaka ,  Yuichi Komano ,  Kentaro Umesawa

    发明人： Toshinari Takahashi ,  Fangming Zhao ,  Shinji Yamanaka ,  Yuichi Komano ,  Kentaro Umesawa

    IPC分类号： H04L29/06

    CPC分类号： H04L9/3271 ,  H04L9/3297 ,  H04L63/126 ,  H04L63/205

    摘要： According to an aspect of the present invention, there is provided a data transmitting apparatus including an authenticator generating unit and a communicating unit. The authenticator generating unit generates a first authenticator by using a first encryption key and generates a second authenticator including a first to an n-th fragment information items by using a second encryption key. The communicating unit transmits a first packet including the first authenticator and the first fragment information item to a destination device and, after the first packet is transmitted, if a response indicating successful authentication is not received from the destination device within a certain period, sequentially transmits an i-th packet (i is an integer being 2 or more and n or less) including the i-th fragment information item to the destination device.

    摘要翻译： 根据本发明的一个方面，提供了一种包括认证器生成单元和通信单元的数据发送装置。 认证器生成单元通过使用第一加密密钥生成第一认证器，并且通过使用第二加密密钥生成包括第一至第n片段信息项的第二认证器。 通信单元将包含第一认证器和第一分段信息项的第一分组发送到目的设备，并且在发送第一分组之后，如果在一定时间段内没有从目的地设备接收到指示成功认证的响应，则顺序发送 第i个分组（i是2以上且n以下的整数）包括到目的设备的第i个分段信息项。

    COMMUNICATION APPARATUS, KEY SERVER, AND MANAGEMENT SERVER
    23.
    发明申请
    COMMUNICATION APPARATUS, KEY SERVER, AND MANAGEMENT SERVER 审中-公开
    通信设备，主要服务器和管理服务器

    公开(公告)号：US20100008509A1

    公开(公告)日：2010-01-14

    申请号：US12368674

    申请日：2009-02-10

    申请人： Tatsuyuki Matsushita ,  Ryuiti Koike ,  Hideki Matsumoto ,  Kentaro Umesawa ,  Taku Kato ,  Haruhiko Toyama ,  Hideaki Sato ,  Toru Kambayashi ,  Satoshi Ito

    发明人： Tatsuyuki Matsushita ,  Ryuiti Koike ,  Hideki Matsumoto ,  Kentaro Umesawa ,  Taku Kato ,  Haruhiko Toyama ,  Hideaki Sato ,  Toru Kambayashi ,  Satoshi Ito

    IPC分类号： H04L9/14

    CPC分类号： H04L9/083 ,  H04L63/061 ,  H04L2209/60 ,  H04L2463/062

    摘要： A communication apparatus obtains file information indicating all or a part of first and second encrypted pieces obtained by encrypting a plurality of pieces constituting a part of a content and version management information with which it is possible to judge whether the file information has validity and receives, for each of the pieces, one of the first encrypted piece and the second encrypted piece from another communication apparatus, by using the file information. The communication apparatus transmits, to a key server, a request message for requesting decryption keys each being used for decrypting the one of the first encrypted piece and the second encrypted piece received for a different one of the pieces and the version management information of the file information used to obtain the one of the first encrypted piece and the second encrypted piece in correspondence with each of the pieces and receives the decryption keys.

    摘要翻译： 通信装置获取指示通过加密构成内容的一部分的多个片段获得的第一和第二加密片段的全部或一部分的文件信息，以及可以判断文件信息是否具有有效性并接收的版本管理信息， 对于每个片段，通过使用文件信息，来自另一通信装置的第一加密片和第二加密片之一。 通信装置向密钥服务器发送用于请求解密密钥的请求消息，每个解密密钥用于解密针对不同的片段接收的第一加密片段和第二加密片段中的一个以及文件的版本管理信息 用于获得与每个片段对应的第一加密片和第二加密片中的一个的信息，并接收解密密钥。

    Communication connection method, authentication method, server computer, client computer and program
    25.
    发明授权
    Communication connection method, authentication method, server computer, client computer and program 有权
    通信连接方法，认证方式，服务器计算机，客户端计算机和程序

    公开(公告)号：US07366170B2

    公开(公告)日：2008-04-29

    申请号：US10948699

    申请日：2004-09-24

    申请人： Kentaro Umesawa ,  Toshinari Takahashi

    发明人： Kentaro Umesawa ,  Toshinari Takahashi

    IPC分类号： H04L12/56

    CPC分类号： H04L41/0893 ,  H04L63/04 ,  H04L63/08 ,  H04L63/166

    摘要： Communication connection method for connecting server computer to client computer via network, comprises storing group identification information items for identifying groups, in relation to information indicating number of connection request packets uniquely and secretly allocated to each group of groups, each group including users allowed to access server computer, counting connection request packets received from client computer within preset period to obtain counted number, determining whether information corresponds to counted number, acquiring one group of groups to which connection request packets corresponding to counted number are allocated, if information corresponds to counted number, determining whether resources of server computer are allocated to group indicated by acquired group identification item, generating connection request acknowledgement packet in response to at least one of received connection request packets, and transmitting generated connection request acknowledgement packet to network.

    摘要翻译： 用于通过网络将服务器计算机连接到客户端计算机的通信连接方法，包括存储用于识别组的组识别信息项，与指示每组群唯一和秘密分配的连接请求分组的数量的信息，每个组包括被允许访问的用户 服务器计算机，在预设期间对从客户端计算机接收到的连接请求数据包进行计数，以获得计数数字，确定信息是否对应于计数数字，获取如下信息对应于计数的数目，获取与计数对应的连接请求分组的一组组 确定服务器计算机的资源是否被分配给由获取的组标识项指示的组，响应于所接收的连接请求分组中的至少一个产生连接请求确认分组，以及发送生成的连接请求确认 边缘包到网络。

    IC card, and method and program for preventing illegal use of IC card
    30.
    发明授权
    IC card, and method and program for preventing illegal use of IC card 失效
    IC卡，以及防止非法使用IC卡的方法和程序

    公开(公告)号：US06811083B2

    公开(公告)日：2004-11-02

    申请号：US10720158

    申请日：2003-11-25

    申请人： Kenji Kojima ,  Kentaro Umesawa ,  Hideyuki Miyake ,  Tatsuyuki Matsushita ,  Yuuki Tomoeda ,  Hideo Shimizu ,  Hiroshi Watanabe

    发明人： Kenji Kojima ,  Kentaro Umesawa ,  Hideyuki Miyake ,  Tatsuyuki Matsushita ,  Yuuki Tomoeda ,  Hideo Shimizu ,  Hiroshi Watanabe

    IPC分类号： G06K708

    CPC分类号： G06Q20/341 ,  G06K19/073 ,  G07F7/1008 ,  G07F7/1083

    摘要： IC card receiving power from terminal and performing process, IC card comprises storage storing first identification information uniquely assigned to IC card, acquisition unit acquiring second identification information from terminal, first timer including first change unit whose state changes with lapse of time without power, state of first change unit changing from first initial state to final state via intermediate state, first timer outputting first signal indicative of changed state of first change unit when IC card receives power, comparison unit comparing second identification information with first identification information, determining whether second identification information and first identification information are identical, and providing first initializing signal according to at least one of determined results, and controller initializing first change unit to first initial state when receiving first initializing signal, controller further controlling IC card to make it inhibit process until state of first change unit changes to intermediate state.

    摘要翻译： IC卡从终端接收电力和执行处理，IC卡包括存储唯一地分配给IC卡的第一识别信息，获取单元从终端获取第二识别信息，第一定时器包括其状态随着时间的流逝随着时间的变化而没有电力状态 第一变化单元经由中间状态从第一初始状态改变到最终状态，当IC卡接收到电力时，第一定时器输出指示第一改变单元的状态的第一信号，比较单元将第二识别信息与第一识别信息进行比较，确定第二识别 信息和第一识别信息是相同的，并且根据确定的结果中的至少一个提供第一初始化信号，并且当接收到第一初始化信号时，控制器将第一改变单元初始化为第一初始状态，控制器进一步控制IC卡使其进入 hibit进程直到第一个更改单元的状态变为中间状态。