Block cipher aria substitution apparatus and method
    1.
    发明授权
    Block cipher aria substitution apparatus and method 有权
    块密码替换装置和方法

    公开(公告)号:US08345865B2

    公开(公告)日:2013-01-01

    申请号:US12176649

    申请日:2008-07-21

    IPC分类号: H04K1/10

    摘要: A block cipher ARIA substitution apparatus, the apparatus includes a first Sbox operation unit for performing operations of a substitution box S1 and a substitution box S1−1; a second Sbox operation unit for performing operations of a substitution box S2 and a substitution box S2−1; and a control unit for determining modes of the first Sbox operation unit and the second Sbox operation unit. The first Sbox operation unit has a first inverse affine transformation unit for performing an inverse affine operation for obtaining S1−1; a finite field inverse element operation unit for computing an inverse element of GF(28) or a result value of the first inverse affine transformation unit; a first affine transformation unit for performing an affine operation for obtaining S1; and a first and a second multiplexer.

    摘要翻译: 一种分组密码ARIA替代装置,该装置包括用于执行替代框S1和替换框S1-1的操作的第一Sbox操作单元; 用于执行替代框S2和替代框S2-1的操作的第二Sbox操作单元; 以及用于确定第一Sbox操作单元和第二Sbox操作单元的模式的控制单元。 第一Sbox操作单元具有用于执行用于获得S1-1的反向仿射操作的第一反向仿射变换单元; 用于计算GF(28)的逆元素或第一反仿像变换单元的结果值的有限域逆元素运算单元; 用于执行用于获得S1的仿射运算的第一仿射变换单元; 以及第一和第二多路复用器。

    Security management server and image data managing method thereof
    3.
    发明授权
    Security management server and image data managing method thereof 有权
    安全管理服务器及其图像数据管理方法

    公开(公告)号:US08364956B2

    公开(公告)日:2013-01-29

    申请号:US12775029

    申请日:2010-05-06

    IPC分类号: H04L29/06 G06F11/30

    CPC分类号: H04N7/185 H04N7/181

    摘要: A security management server includes an input unit for receiving image data from at least one network camera; a control unit for assigning an access authority level to each image data received via the input unit; and a storage unit for storing therein the image data along with the access authority levels assigned by the control unit. When receiving a request for a specific image data among the image data stored in the storage unit from a user having a user access authority level, the control unit compares the user access authority level and the access authority level assigned to the specific image data, and based on comparison result thereof, selectively provides the specific image data to the user.

    摘要翻译: 安全管理服务器包括用于从至少一个网络摄像机接收图像数据的输入单元; 控制单元,用于将访问权限级别分配给经由所述输入单元接收的每个图像数据; 以及存储单元,用于在其中存储图像数据以及由控制单元分配的访问权限级别。 当从具有用户访问权限级别的用户接收到存储在存储单元中的图像数据中的特定图像数据的请求时,控制单元比较分配给特定图像数据的用户访问权限级别和访问权限级别,以及 基于其比较结果,选择性地向用户提供特定图像数据。

    Apparatus and method for generating random number using digital logic
    4.
    发明申请
    Apparatus and method for generating random number using digital logic 审中-公开
    使用数字逻辑生成随机数的装置和方法

    公开(公告)号:US20070150531A1

    公开(公告)日:2007-06-28

    申请号:US10584158

    申请日:2004-07-29

    申请人: Yong-Sung Jeon

    发明人: Yong-Sung Jeon

    IPC分类号: G06F7/58

    摘要: An apparatus and method for generating random numbers using digital logic are provided. The apparatus includes a shift register which sequentially moves bit values stored therein, a feedback circuit which performs a predetermined logic operation on the bit values stored in the shift register to generate a feedback signal, an external signal generation circuit which generates an external signal input to the shift register, and an input logic circuit which performs a predetermined logic operation on the feedback signal and the external signal and inputs a result of operation to the shift register. The method includes sequentially moving bit values stored in a shift register, (b) performing a predetermined logic operation on the bit values stored in the shift register to generate a feedback signal, (c) generating an external signal input to the shift register, and (d) performing a predetermined operation on the feedback signal and the external signal and inputting a result of the operation to the shift register.

    摘要翻译: 提供了一种使用数字逻辑产生随机数的装置和方法。 该装置包括顺序地移动存储在其中的位值的移位寄存器,对存储在移位寄存器中的位值执行预定逻辑运算以生成反馈信号的反馈电路,产生外部信号输入的外部信号生成电路 移位寄存器和输入逻辑电路,其对反馈信号和外部信号执行预定的逻辑运算,并将运算结果输入到移位寄存器。 该方法包括顺序移动存储在移位寄存器中的位值,(b)对存储在移位寄存器中的位值执行预定的逻辑运算以产生反馈信号,(c)产生输入到移位寄存器的外部信号,以及 (d)对反馈信号和外部信号执行预定的操作,并将该操作的结果输入到移位寄存器。

    BLOCK CIPHER ARIA SUBSTITUTION APPARATUS AND METHOD
    6.
    发明申请
    BLOCK CIPHER ARIA SUBSTITUTION APPARATUS AND METHOD 有权
    块芯片替代设备和方法

    公开(公告)号:US20090161864A1

    公开(公告)日:2009-06-25

    申请号:US12176649

    申请日:2008-07-21

    IPC分类号: H04L9/06

    摘要: A block cipher ARIA substitution apparatus, the apparatus includes a first Sbox operation unit for performing operations of a substitution box S1 and a substitution box S1−1; a second Sbox operation unit for performing operations of a substitution box S2 and a substitution box S2−1; and a control unit for determining modes of the first Sbox operation unit and the second Sbox operation unit. The first Sbox operation unit has a first inverse affine transformation unit for performing an inverse affine operation for obtaining S1−1; a finite field inverse element operation unit for computing an inverse element of GF(28) or a result value of the first inverse affine transformation unit; a first affine transformation unit for performing an affine operation for obtaining S1; and a first and a second multiplexer

    摘要翻译: 一种分组密码ARIA替代装置,该装置包括:第一Sbox操作单元,用于执行替换框S1和替换框S1-1的操作; 用于执行替代框S2和替代框S2-1的操作的第二Sbox操作单元; 以及用于确定第一Sbox操作单元和第二Sbox操作单元的模式的控制单元。 第一Sbox操作单元具有用于执行用于获得S1-1的反向仿射操作的第一反向仿射变换单元; 用于计算GF(28)的逆元素或第一反仿像变换单元的结果值的有限域逆元素运算单元; 用于执行用于获得S1的仿射运算的第一仿射变换单元; 以及第一和第二多路复用器