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    • 66. 发明公开
    • 암호 처리 장치, 및 암호 처리 방법, 및 컴퓨터 프로그램
    • 加密处理设备,加密处理方法和计算机程序
    • KR1020080086476A
    • 2008-09-25
    • KR1020087015731
    • 2007-01-04
    • 소니 주식회사
    • 카타기마사노부키타무라이즈루아키시타토루
    • G09C1/00H04L9/30
    • H04L9/003G06F7/725H04L9/3066H04L2209/08
    • A device and method for realizing high-speed computation in hyperelliptic curve encryption is disclosed. In a hyperelliptic curve cryptography of genus g, when a normal factor having a weight equal to the genus g is an object factor of scalar multiplication, it is judged whether or not the normal factor can be divided into theta factors defined as factors having weights smaller than the genus g. If the normal factor can be divided, the normal factor is divided to produce theta factors, and a scalar multiplication execution section is allowed to execute scalar multiplication to which the theta factors are applied. With this constitution, high-speed scalar multiplication having a lessened computational complexity can be executed, thereby realizing high-speed encryption processing operation.
    • 公开了一种用于实现超椭圆曲线加密中的高速计算的装置和方法。 在g类的超椭圆曲线密码学中,当具有等于g属性的权重的正态因子是标量乘法的对象因子时,判断正常因子是否可以被划分为被定义为具有权重较小的因子的θ因子 g。 如果可以分割正常因子,则将正常因子分割为θ因子,并且允许标量乘法执行部分执行θ因子所应用的标量乘法。 利用这种结构,可以执行具有减少的计算复杂度的高速标量乘法,从而实现高速加密处理操作。
    • 68. 发明公开
    • 고속 몽고메리 전력 래더 알고리즘에서 사용되는 폴트 검출동작을 구현하기 위한 이진 유한 영역에서의 포인트 덧셈방법 및 덧셈 연산 장치
    • 二进制有限域中添加点的方法和装置用于实现快速蒙特卡拉函数梯形图算法中故障检测操作的实现
    • KR1020080012634A
    • 2008-02-12
    • KR1020060073775
    • 2006-08-04
    • 삼성전자주식회사
    • 바실조프이고르황준호
    • G06F7/42G06F7/49
    • G06F7/725G06F2207/7261G06F2207/7271H04L9/3066
    • A method and a device for performing point addition and calculating addition in a binary finite field for implementing fault detecting operation used in a fast Montgomery power ladder algorithm are provided to detect fault without error in an encryption system using the fast Montgomery power ladder algorithm. A first coordinate calculator calculates a first coordinate value of an addition result by performing the addition for first and second points, which are set by using a basic point of an elliptic curve, in the binary finite field. A second coordinate calculator calculates a second coordinate value of the addition result by performing the addition for the first and second points in the binary finite field. The first and second coordinate calculators calculate the first and second coordinate values by reflecting a difference between the second coordinate values of the first and second points. The fault detection operation used in the fast Montgomery power ladder algorithm is applied to an elliptic curve encryption system. The first coordinate value is an X coordinate value and the second coordinate value is a Y coordinate value.
    • 提供了一种用于在二进制有限域中执行点加法和计算加法的方法和装置,用于实现快速蒙哥马利幂级算法中使用的故障检测操作,以便在使用快速蒙哥马利幂级算法的加密系统中检测故障。 第一坐标计算器通过在二进制有限域中执行通过使用椭圆曲线的基本点设置的第一和第二点的相加来计算加法结果的第一坐标值。 第二坐标计算器通过对二进制有限域中的第一和第二点执行相加来计算相加结果的第二坐标值。 第一和第二坐标计算器通过反映第一和第二点的第二坐标值之间的差来计算第一和第二坐标值。 快速蒙哥马利电梯梯形图算法中使用的故障检测操作被应用于椭圆曲线加密系统。 第一坐标值是X坐标值,第二坐标值是Y坐标值。
    • 69. 发明公开
    • 유한체 GF(2m)상의 곱셈기
    • 使用GAUSSIAN正常基础的GF(2M)的乘法器
    • KR1020070111718A
    • 2007-11-22
    • KR1020060044858
    • 2006-05-18
    • 학교법인 영광학원성균관대학교산학협력단
    • 홍춘표김창훈권순학
    • G06F7/52
    • G06F7/52G06F5/08G06F7/725H03K19/21
    • A multiplier over GF(2m) using a Gaussian normal basis is provided to obtain a low level of hardware complexity and to obtain a low level of critical path delay. A first register unit(10) receives and stores a vector A and shifts the vector A to an upper bit. An exclusive OR operation unit(40) performs an exclusive OR operation for a value stored in the first register unit by using predetermined algorithm. A second register unit(20) stores a vector B and shifts it to the upper bit by using reference pressure. A third register unit(30) multiples the value stored in the first register, a value stored in the second register, and a value operated through the exclusive OR operation unit in reference clock units.
    • 提供使用高斯法则的GF(2m)乘数以获得低水平的硬件复杂度并获得低水平的关键路径延迟。 第一寄存器单元(10)接收并存储向量A并将向量A移位到高位。 异或运算单元(40)通过使用预定算法对存储在第一寄存器单元中的值进行异或运算。 第二寄存器单元(20)存储向量B并通过使用参考压力将其移位到高位。 第三寄存器单元(30)将存储在第一寄存器中的值,存储在第二寄存器中的值和以参考时钟单元中的异或运算单元操作的值倍数。
    • 70. 发明公开
    • ECC 패스트 몽고매리 전력 래더 알고리즘을 이용하여DFA 에 대응하는 암호화 방법
    • 使用ECC快速蒙特卡罗幂函数算法对DFA进行计数的CRYPTOGRAPHIC方法
    • KR1020070091062A
    • 2007-09-07
    • KR1020060020720
    • 2006-03-04
    • 삼성전자주식회사
    • 바실조프이고르
    • H04L9/28H04L9/30
    • H04L9/004G06F7/725G06F2207/7261H04L9/3066
    • A cryptographic method using an ECC(Elliptic Curve Cryptography) fast montgomery power ladder algorithm is provided to defend a cryptographic system against various attacks by actively managing a DFA(Differential Fault Analysis). A basic point and a scalar are received on an elliptic curve. The basic point is used for initializing plural first order variables. Plural second order variables are set corresponding to the first order variables. The first and second order variables are repeatedly calculated in response to the scalar such that a scalar product of the basic point and the scalar is obtained. Whether a fault is introduced to a system is determined by using the first order and second order variables in response to the scalar. If there is no fault, the scalar product is outputted.
    • 提供了使用ECC(椭圆曲线密码学)快速montgomery电源梯形图算法的密码方法,通过主动管理DFA(差分故障分析)来保护加密系统免受各种攻击。 在椭圆曲线上接收基本点和标量。 基本点用于初始化多个一阶变量。 对应于第一阶变量设置多个二阶变量。 响应于标量重复计算第一和第二阶变量,使得获得基本点和标量的标量积。 通过使用响应于标量的一阶和二阶变量来确定故障是否被引入到系统。 如果没有故障,则输出标量积。