Detection of a disturbance in a calculation performed by an integrated circuit
    1.
    发明授权
    Detection of a disturbance in a calculation performed by an integrated circuit 有权
    检测由集成电路执行的计算中的干扰

    公开(公告)号:US08150029B2

    公开(公告)日:2012-04-03

    申请号:US11647114

    申请日:2006-12-28

    IPC分类号: G06F21/00

    摘要: A method for detecting a disturbance of a calculation, by an electronic circuit, of a result of an integral number of applications of an internal composition law on elements of an abelian group, by successive iterations of different steps according to the even or odd character of a current coefficient of a polynomial representation of said integral number, the degree of which determines the number of iterations, each iteration including: in case of an odd current coefficient, updating at least one first variable intended to contain the result at the end of the calculation; and in case of an even current coefficient, of updating a second variable and a comparison of this second variable with an expected value.

    摘要翻译: 一种用于通过电子电路计算由abelian组的元素组成的内部组成定律的整体数量的结果的方法,通过根据偶数或奇数特征的不同步骤的连续迭代来检测 所述积分数的多项式表示的当前系数,其度数确定迭代次数,每次迭代包括:在奇数电流系数的情况下,更新旨在包含结果的结果的至少一个第一变量 计算; 并且在均匀电流系数的情况下,更新第二变量和将该第二变量与期望值的比较。

    Detection of a disturbance in a calculation performed by an integrated circuit
    3.
    发明申请
    Detection of a disturbance in a calculation performed by an integrated circuit 有权
    检测由集成电路执行的计算中的干扰

    公开(公告)号:US20080021941A1

    公开(公告)日:2008-01-24

    申请号:US11647114

    申请日:2006-12-28

    IPC分类号: G06F15/00

    摘要: A method for detecting a disturbance of a calculation, by an electronic circuit, of a result of an integral number of applications of an internal composition law on elements of an abelian group, by successive iterations of different steps according to the even or odd character of a current coefficient of a polynomial representation of said integral number, the degree of which determines the number of iterations, each iteration including: in case of an odd current coefficient, updating at least one first variable intended to contain the result at the end of the calculation; and in case of an even current coefficient, of updating a second variable and a comparison of this second variable with an expected value.

    摘要翻译: 一种用于通过电子电路计算由abelian组的元素组成的内部组成定律的整体数量的结果的方法,通过根据偶数或奇数特征的不同步骤的连续迭代来检测 所述积分数的多项式表示的当前系数,其度数确定迭代次数,每次迭代包括:在奇数电流系数的情况下,更新旨在包含结果的结果的至少一个第一变量 计算; 并且在均匀电流系数的情况下,更新第二变量和将该第二变量与期望值的比较。

    Protection of a calculation performed by an integrated circuit
    4.
    发明申请
    Protection of a calculation performed by an integrated circuit 有权
    保护由集成电路执行的计算

    公开(公告)号:US20070156797A1

    公开(公告)日:2007-07-05

    申请号:US11647002

    申请日:2006-12-28

    IPC分类号: G06F15/00

    摘要: The calculation, by an electronic circuit, of a result of an integral number of applications of an internal composition law on elements of an abelian group, by successive iterations of different steps according to the even or odd character of a current coefficient of a polynomial representation of said integer, the degree of which determines the number of iterations, each iteration including whatever the even or odd character of the current coefficient, updating of at least one variable conditioning the final calculation result.

    摘要翻译: 由电子电路通过根据多项式表示的当前系数的偶数或奇数字符的不同步骤的连续迭代,计算对阿贝尔组的元素的内部组成定律的整体数量的结果的结果 的整数,其程度确定迭代次数,每次迭代包括当前系数的偶数或奇数字符的任何值,更新调节最终计算结果的至少一个变量。

    Protection of a calculation performed by an integrated circuit
    5.
    发明授权
    Protection of a calculation performed by an integrated circuit 有权
    保护由集成电路执行的计算

    公开(公告)号:US09313027B2

    公开(公告)日:2016-04-12

    申请号:US11647002

    申请日:2006-12-28

    摘要: The calculation, by an electronic circuit, of a result of an integral number of applications of an internal composition law on elements of an abelian group, by successive iterations of different steps according to the even or odd character of a current coefficient of a polynomial representation of said integer, the degree of which determines the number of iterations, each iteration including whatever the even or odd character of the current coefficient, updating of at least one variable conditioning the final calculation result.

    摘要翻译: 由电子电路通过根据多项式表示的当前系数的偶数或奇数字符的不同步骤的连续迭代,计算对阿贝尔组的元素的内部组成定律的整体数量的结果的结果 的整数,其程度确定迭代次数,每次迭代包括当前系数的偶数或奇数字符的任何值,更新调节最终计算结果的至少一个变量。

    Protection of a program against a trap
    7.
    发明授权
    Protection of a program against a trap 有权
    保护针对陷阱的程序

    公开(公告)号:US07822953B2

    公开(公告)日:2010-10-26

    申请号:US11717225

    申请日:2007-03-13

    IPC分类号: G06F7/04

    CPC分类号: G06F21/52 G06F21/77

    摘要: A method for controlling the execution, by a central processing unit, of a program stored in a memory, a redundancy code stored with first current data at a current address being assigned to second subsequent data of the program and depending at least on the second data.

    摘要翻译: 一种用于通过中央处理单元执行存储在存储器中的程序执行的方法,所述冗余代码被存储在当前地址处的第一当前数据,并被分配给所述程序的第二后续数据,并且至少依赖于所述第二数据 。

    HIERARCHIZATION OF CRYTOGRAPHIC KEYS IN AN ELECTRONIC CIRCUIT
    9.
    发明申请
    HIERARCHIZATION OF CRYTOGRAPHIC KEYS IN AN ELECTRONIC CIRCUIT 有权
    电子电路中的克隆键的分类

    公开(公告)号:US20110038481A1

    公开(公告)日:2011-02-17

    申请号:US12811810

    申请日:2008-12-31

    IPC分类号: H04L9/00

    摘要: A method of obtaining, in an electronic circuit, at least one first key intended to be used in a cryptographic mechanism, on the basis of at least one second key contained in the same circuit, the first key being stored in at least one first storage element of the circuit, the first storage element being reinitialized automatically after a duration independent of the fact that the circuit is or is not powered. Also described are applications of this method to encrypted transmissions, usage controls, as well as an electronic circuit implementing these methods.

    摘要翻译: 一种在电子电路中基于同一电路中包含的至少一个第二键获得旨在用于密码机制中的至少一个第一密钥的方法,所述第一密钥存储在至少一个第一存储器 电路的元件,第一存储元件在与电路被供电或未被供电的事实无关的持续时间后自动重新初始化。 还描述了该方法应用于加密传输,使用控制以及实现这些方法的电子电路。