COMBINATION-BASED BROADCAST ENCRYPTION METHOD
    1.
    发明申请
    COMBINATION-BASED BROADCAST ENCRYPTION METHOD 有权
    基于组合的广播加密方法

    公开(公告)号:US20120213364A1

    公开(公告)日:2012-08-23

    申请号:US13460098

    申请日:2012-04-30

    IPC分类号: H04K1/00

    摘要: A combination-based broadcast encryption method includes: assigning by a server a base group of different combinations to each user; producing and sending secret information for each user by using as a base the base group allocated to each user; producing and sending an inverse-base parameter value through calculations with integers used to produce the base group and key value information of one or more privileged users; and deriving a group key by using the key value information of the privileged users, encrypting a session key by using the derived group key, and sending the encrypted session key to each user. Accordingly, each user is assigned a different base through a combination, thereby having security against collusion attacks.

    摘要翻译: 基于组合的广播加密方法包括:由服务器分配不同组合的基组给每个用户; 通过使用分配给每个用户的基本组作为基础来生成和发送每个用户的秘密信息; 通过用于产生基本组的整数和一个或多个特权用户的键值信息的计算产生和发送反基本参数值; 以及通过使用所述特权用户的密钥值信息来导出组密钥,通过使用导出的组密钥加密会话密钥,以及将加密的会话密钥发送给每个用户。 因此,通过组合为每个用户分配不同的基站,从而具有防止串通攻击的安全性。

    APPARATUS AND METHOD FOR GENERATING A KEY FOR BROADCAST ENCRYPTION
    2.
    发明申请
    APPARATUS AND METHOD FOR GENERATING A KEY FOR BROADCAST ENCRYPTION 有权
    用于生成用于广播加密的密钥的装置和方法

    公开(公告)号:US20120183136A1

    公开(公告)日:2012-07-19

    申请号:US13426830

    申请日:2012-03-22

    IPC分类号: H04L9/00

    摘要: An apparatus and method for generating a key for a broadcast encryption. The apparatus includes a node secret generator for managing a user that receives broadcast data in a tree structure and for generating a unique node secret for each node in the tree structure. The apparatus also includes an instant key generator for temporarily generating an instant key used at all nodes in common in the tree structure, and a node key generator for generating a node key for each node by operating the node secret generated at the node secret generator and the instant key generated at the instant key generator. Thus, key update can be efficiently achieved.

    摘要翻译: 一种用于生成用于广播加密的密钥的装置和方法。 该装置包括节点秘密生成器,用于管理以树结构接收广播数据的用户,并为树结构中的每个节点生成唯一的节点秘密。 该装置还包括一个即时密钥生成器,用于临时生成树结构中所有节点共同使用的即时密钥,以及节点密钥生成器,用于通过操作在节点秘密生成器处生成的节点秘密来生成每个节点的节点密钥, 在即时密钥生成器处生成的即时密钥。 因此,可以有效地实现密钥更新。

    METHOD AND APPARATUS FOR ALLOWING PACKET IN NETWORK IMAGE FORMING APPARATUS
    3.
    发明申请
    METHOD AND APPARATUS FOR ALLOWING PACKET IN NETWORK IMAGE FORMING APPARATUS 有权
    在网络图像形成装置中允许分组的方法和装置

    公开(公告)号:US20090002743A1

    公开(公告)日:2009-01-01

    申请号:US12117885

    申请日:2008-05-09

    IPC分类号: G06K15/02

    摘要: A method of allowing a packet in a network image forming apparatus includes setting user account information corresponding to the plurality of network interfaces, determining allowability of a received packet by using information included in the received packet and the set user account information, and when the received packet is allowable, performing an operation corresponding to the received packet. Accordingly, in an image forming apparatus installing a plurality of network interfaces, not only allowability of each interface to each user but also a type of protocol provided to each user can be setup. Consequently, an environment that can use an interface in various forms according to each user can be provided.

    摘要翻译: 允许网络图像形成装置中的分组的方法包括:设置与多个网络接口对应的用户账户信息,通过使用包含在接收到的分组中的信息和所设置的用户账户信息来确定接收分组的允许性,以及当接收到 分组是允许的,执行与接收到的分组相对应的操作。 因此,在安装多个网络接口的图像形成装置中,不仅可以设置每个接口对每个用户的允许性,而且还可以设置向每个用户提供的一种协议。 因此,可以提供可以根据每个用户使用各种形式的界面的环境。

    INK-JET PRINTHEAD AND MANUFACTURING METHOD THEREOF
    4.
    发明申请
    INK-JET PRINTHEAD AND MANUFACTURING METHOD THEREOF 有权
    喷墨打印机及其制造方法

    公开(公告)号:US20080170101A1

    公开(公告)日:2008-07-17

    申请号:US11830112

    申请日:2007-07-30

    IPC分类号: B41J2/135 G01D15/00

    摘要: An inkjet printhead and a method of manufacturing the printhead. The inkjet printhead includes a substrate through which an ink supply passage is formed, a chamber plate stacked on the substrate having an ink chamber filled with ink supplied through the ink supply passage and heating resistors to heat the ink formed in the ink chamber, a nozzle plate formed on the chamber plate and through which a plurality of nozzles through which ink is ejected are formed, and a water repellent layer formed on the nozzle plate, wherein portions of a covalent bond formed by reaction between the material forming the nozzle plate and a hydrolysis material used to form the water repellent layer are discontinuously formed.

    摘要翻译: 喷墨打印头和制造打印头的方法。 喷墨打印头包括形成油墨供给通道的基板,在基板上堆叠有一个油墨室的室板,其中填充有通过供墨通道供应的油墨和加热电阻器以加热形成在油墨室中的油墨,喷嘴 形成在所述室板上的板,并且形成有多个喷嘴,通过所述多个喷嘴喷射油墨,以及形成在所述喷嘴板上的防水层,其中通过形成所述喷嘴板的材料与所述喷嘴板之间的反应形成的共价键的部分 用于形成防水层的水解材料不连续地形成。

    TERMINAL DEVICE AND METHOD FOR TRANSCEIVING DATA THEREOF
    5.
    发明申请
    TERMINAL DEVICE AND METHOD FOR TRANSCEIVING DATA THEREOF 有权
    终端设备及其数据收发方法

    公开(公告)号:US20100151796A1

    公开(公告)日:2010-06-17

    申请号:US12561698

    申请日:2009-09-17

    IPC分类号: H04B1/38

    摘要: A terminal device and a data transceiving method are provided. The terminal device includes a sensing unit which senses a momentum of the terminal device, an interface unit which receives a momentum from at least one external device, and a control unit which performs one of a data receiving operation, a data transmitting operation, and a data transceiving operation with the at least one external device depending on a comparison value obtained from a comparison of the sensed momentum with the received momentum to allow two devices to exchange data more easily.

    摘要翻译: 提供终端设备和数据收发方法。 终端装置包括感测终端装置的动量的感测单元,从至少一个外部装置接收动量的接口单元,以及执行数据接收操作,数据发送操作和数据发送操作之一的控制单元 根据从感测到的动量与接收到的动量的比较获得的比较值,使用至少一个外部设备进行数据收发操作,以允许两个设备更容易地交换数据。