HARDENING OF DIRECT ANONYMOUS ATTESTATION FROM SIDE-CHANNEL ATTACK
    1.
    发明申请
    HARDENING OF DIRECT ANONYMOUS ATTESTATION FROM SIDE-CHANNEL ATTACK 有权
    从通道攻击引起的直接不正常情况的加强

    公开(公告)号:US20140095883A1

    公开(公告)日:2014-04-03

    申请号:US13630109

    申请日:2012-09-28

    IPC分类号: H04L9/32

    摘要: Various embodiments are generally directed to hardening the performance of calculations of a digital signature system for authenticating computing devices against side-channel attacks. An apparatus comprises a processor circuit and an interface operative to communicatively couple the processor circuit to a network; a storage communicatively coupled to the processor circuit and arranged to store instructions operative on the processor circuit to digitally sign a message to create a first signature using a modular arithmetic operation arranged to compensate for a value of a variable greater than a modulus without use of a branching instruction; and transmit the first signature to a verifying server via the network. Other embodiments are described and claimed herein.

    摘要翻译: 各种实施例通常旨在加强数字签名系统的计算性能,以便针对侧信道攻击认证计算设备。 一种装置包括处理器电路和可操作地将处理器电路通信地耦合到网络的接口; 存储器,其通信地耦合到所述处理器电路并且被布置为存储在所述处理器电路上操作的指令以对信息进行数字签名以使用被设置为补偿大于模数的变量的值的模算术运算来创建第一签名而不使用 分支指令 并经由网络将第一签名发送给验证服务器。 在此描述和要求保护的其它实施例。

    Method for preprocessing vibro-sensor signals for engine diagnostics and device for carrying out thereof
    2.
    发明授权
    Method for preprocessing vibro-sensor signals for engine diagnostics and device for carrying out thereof 有权
    用于预处理用于发动机诊断的振动传感器信号的方法及其执行装置

    公开(公告)号:US08131484B2

    公开(公告)日:2012-03-06

    申请号:US12661285

    申请日:2010-03-15

    IPC分类号: G01F23/00 G06F19/00

    CPC分类号: G01M15/12

    摘要: A method is provided for improved diagnostics of an internal combustion engine that includes cylinders, a crankshaft, crankshaft rotation angle sensor (CRAS), a vibro-sensor, a logic-mark sensor, each sensor produces respective signals. The method contemplates receiving the signals dividing them into a plurality of idling cycles, determining the crankshaft's position based on stochastic filtration, quasicontinuous representation of the signal, the Kalman filter, a nonlinear stochastic filter, based on CRAS characteristics and quasicontinuous representation, determining the Riesz generator basis function based on technical characteristics of the vibro-sensor, secondary discreeting of the signals with a replacement of argument, discreeting of a reciprocal function, obtaining a discrete wavelet transform, obtaining a continuous wavelet transform, obtaining a discrete wavelet transform of a reciprocal function, and producing output data. Two-dimensional arrays are divided relatively to predetermined indexes in the discrete transforms, an empirical probability distribution function is computed. Further optional diagnostic processing is provided.

    摘要翻译: 提供了一种用于改进内燃机诊断的方法,该内燃机包括气缸,曲轴,曲轴旋转角传感器(CRAS),振动传感器,逻辑标记传感器,每个传感器产生相应的信号。 该方法考虑接收将它们分成多个空转循环的信号,基于随机过滤,基于CRAS特性和准连续表示的信号的准连续表示卡尔曼滤波器,非线性随机滤波器来确定曲轴的位置,确定雷斯 基于振动传感器的技术特征的发生器基函数,具有替代参数的信号的二次偏移,相互函数的分离,获得离散小波变换,获得连续小波变换,获得互逆的离散小波变换 功能和产生输出数据。 二维阵列相对于离散变换中的预定索引进行分割,计算经验概率分布函数。 提供了进一步的可选诊断处理。

    Method for preprocessing vibro-sensor signals for engine diagnostics and device for carrying out thereof
    3.
    发明申请
    Method for preprocessing vibro-sensor signals for engine diagnostics and device for carrying out thereof 有权
    用于预处理用于发动机诊断的振动传感器信号的方法及其执行装置

    公开(公告)号:US20110224922A1

    公开(公告)日:2011-09-15

    申请号:US12661285

    申请日:2010-03-15

    IPC分类号: G01L23/22 G01M15/06

    CPC分类号: G01M15/12

    摘要: A method is provided for improved diagnostics of an internal combustion engine that includes cylinders, a crankshaft, crankshaft rotation angle sensor (CRAS), a vibro-sensor, a logic-mark sensor, each sensor produces respective signals. The method contemplates receiving the signals dividing them into a plurality of idling cycles, determining the crankshaft's position based on stochastic filtration, quasicontinuous representation of the signal, the Kalman filter, a nonlinear stochastic filter, based on CRAS characteristics and quasicontinuous representation, determining the Riesz generator basis function based on technical characteristics of the vibro-sensor, secondary discreeting of the signals with a replacement of argument, discreeting of a reciprocal function, obtaining a discrete wavelet transform, obtaining a continuous wavelet transform, obtaining a discrete wavelet transform of a reciprocal function, and producing output data. Two-dimensional arrays are divided relatively to predetermined indexes in the discrete transforms, an empirical probability distribution function is computed. Further optional diagnostic processing is provided.

    摘要翻译: 提供了一种用于改进内燃机诊断的方法,该内燃机包括气缸,曲轴,曲轴旋转角传感器(CRAS),振动传感器,逻辑标记传感器,每个传感器产生相应的信号。 该方法考虑接收将它们分成多个空转循环的信号,基于随机过滤,基于CRAS特性和准连续表示的信号的准连续表示卡尔曼滤波器,非线性随机滤波器来确定曲轴的位置,确定雷斯 基于振动传感器的技术特征的发生器基函数,具有替代参数的信号的二次偏移,相互函数的分离,获得离散小波变换,获得连续小波变换,获得互逆的离散小波变换 功能和产生输出数据。 二维阵列相对于离散变换中的预定索引进行分割,计算经验概率分布函数。 提供了进一步的可选诊断处理。