METHOD OF KEY DERIVATION IN AN INTEGRATED CIRCUIT
    22.
    发明申请
    METHOD OF KEY DERIVATION IN AN INTEGRATED CIRCUIT 有权
    集成电路中的主要衍生方法

    公开(公告)号:US20130077781A1

    公开(公告)日:2013-03-28

    申请号:US13615251

    申请日:2012-09-13

    CPC classification number: H04L9/003 H04L9/0861 H04L9/0891 H04L2209/12

    Abstract: A method of derivation, by an electronic circuit, of a first key from a second key, wherein: at least one third key is derived from the second key and is used to derive the first key; and a value of a counter, representative of the number of first keys, conditions the derivation of a new value of the third key.

    Abstract translation: 一种通过电子电路从第二密钥推导第一密钥的方法,其中:从所述第二密钥导出至少一个第三密钥,并用于导出所述第一密钥; 代表第一密钥数量的计数器的值,条件是导出第三密钥的新值。

    DEVICE FOR DISTURBING THE OPERATION OF AN INTEGRATED CIRCUIT
    23.
    发明申请
    DEVICE FOR DISTURBING THE OPERATION OF AN INTEGRATED CIRCUIT 有权
    用于扰乱集成电路运行的装置

    公开(公告)号:US20120261594A1

    公开(公告)日:2012-10-18

    申请号:US13444349

    申请日:2012-04-11

    Abstract: A system for injecting faults by laser beams into an electronic circuit including: at least two lasers capable of emitting approximately parallel beams; at least one optical system receiving, on the magnifying side, the beams; and a support of the integrated circuit placed on the reducing side of the optical system.

    Abstract translation: 一种用于通过激光束将故障注入电子电路的系统,包括:至少两个能够发射大致平行光束的激光器; 至少一个光学系统,在所述放大侧上接收所述光束; 以及放置在光学系统的减少侧的集成电路的支撑。

    Protection of a microcontroller
    25.
    发明授权
    Protection of a microcontroller 有权
    保护微控制器

    公开(公告)号:US07516902B2

    公开(公告)日:2009-04-14

    申请号:US11283096

    申请日:2005-11-18

    CPC classification number: G06F21/52 G06F21/55 H04W12/12

    Abstract: A method for protecting at least one section of a program executed by a microcontroller, included before execution of the section, decrementing or incrementing at least one first counter and storing its state in a non-volatile memory of the microcontroller; in case of the detection of an attack attempt by the microcontroller, activating a flag in the microcontroller RAM; and at the end of the execution of the program section, checking the flag state.

    Abstract translation: 一种用于保护由微控制器执行的程序的至少一个部分的方法,包括在执行该部分之前,递减或递增至少一个第一计数器并将其状态存储在微控制器的非易失性存储器中; 在检测到微控制器的攻击尝试的情况下,激活微控制器RAM中的标志; 并在程序段执行结束时检查标志状态。

    Interface between a twin-wire bus and a single-wire bus
    27.
    发明授权
    Interface between a twin-wire bus and a single-wire bus 有权
    双线总线和单线总线之间的接口

    公开(公告)号:US08161224B2

    公开(公告)日:2012-04-17

    申请号:US12502634

    申请日:2009-07-14

    CPC classification number: G06F13/4282 G06F13/4027 G06F2213/0016

    Abstract: A method and a device for converting a first bus including at least a data wire and a clock wire into a single-wire bus, wherein a data bit of the first bus is converted on half a period of the clock signal for transmission over the second bus, a waiting pattern being placed on the second bus during the other half-period.

    Abstract translation: 一种用于将包括至少数据线和时钟线的第一总线转换成单线总线的方法和装置,其中第一总线的数据位在时钟信号的半个周期上被转换,以在第二总线上传输第二总线 公共汽车,在另一半期间,等待方式被放置在第二辆公共汽车上。

    HIERARCHIZATION OF CRYTOGRAPHIC KEYS IN AN ELECTRONIC CIRCUIT
    28.
    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

    Abstract: 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.

    Abstract translation: 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。

    Method of automatic control of the execution of a program by a microprocessor
    30.
    发明授权
    Method of automatic control of the execution of a program by a microprocessor 有权
    通过微处理器自动控制程序执行的方法

    公开(公告)号:US07496738B2

    公开(公告)日:2009-02-24

    申请号:US11146719

    申请日:2005-06-07

    CPC classification number: G06F21/54 G06F21/552

    Abstract: A method and a circuit of automatic control of the execution of a program by a microprocessor, including: assigning a digital decrement or increment to at least one function of the program; assigning a digital increment, respectively decrement, to at least one section considered as critical as to the program execution and called by the function; setting a counter to a first value; decrementing, respectively incrementing, the counter once per function before a call to a critical section; incrementing, respectively decrementing, the counter on each correct execution of a section; and comparing the current value of the counter with a predetermined critical threshold.

    Abstract translation: 一种由微处理器自动控制程序执行的方法和电路,包括:向程序的至少一个功能分配数字递减或增量; 将数字增量分别递减至被认为对于程序执行至关重要并由功能调用的至少一个部分; 将一个计数器设置为第一个值; 在调用临界区之前,每个功能递减计数器一次; 每个正确执行部分递增递减计数器; 以及将所述计数器的当前值与预定临界阈值进行比较。

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