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    • 62. 发明授权
    • Latently crosslinking aqueous dispersions containing a polyurethane
    • 含有聚氨酯的水性分散体
    • US06767954B2
    • 2004-07-27
    • US10113296
    • 2002-04-02
    • Bernd Meyer-RoscherAndre BurghardtUlrike Licht
    • Bernd Meyer-RoscherAndre BurghardtUlrike Licht
    • C08J300
    • C08G18/797C08G18/0828C08G18/10C08L33/00C09J175/04Y10T428/31551
    • Latently crosslinking aqueous polyurethane dispersions contain I) a disperse phase (P.I) containing Ia) a polyurethane (Ia) which, in addition to hydrophilic groups which produce water dispersibility, carries carbodiimide groups and substantially no carboxyl groups or Ib) a physical mixture of Ibi) a polyurethane (Ibi) which carries hydrophilic groups which produce water dispersibility and carries substantially no carbodiimide or carboxyl groups, and Ibii) a carbodiimide (Ibii) which carries substantially no hydrophilic groups which produce water dispersibility, and II) a disperse phase (P.II) containing another polymer (II) which carries substantially no carbodiimide groups and is substantially derived from II.1) from 30 to 99.98% by weight of main monomers selected from C1- to C20-alkyl (meth)acrylates, vinyl esters of carboxylic acids of up to 20 carbon atoms, vinylaromatics of up to 20 carbon atoms, ethylenically unsaturated nitriles, vinyl halides and aliphatic hydrocarbons having 2 to 8 carbon atoms and 1 or 2 double bonds, II.2) from 0.01 to 20% by weight of a carboxylic acid having an olefinic double bond and II.3) from 0.01 to 10% by weight of a monomer differing from the monomers II.1 and II.2 and selected from the group consisting of N-methylol (meth)acrylamide (AMOL), (MAMOL), acetoacetoxyethyl (meth)acrylate, diacetone (meth)acrylamide, glycidyl (meth)acrylate, ureido (meth)acrylate and (meth)acrylic anhydride, and II.4) if required, monomers differing from (II.1), (II.2) and (II.3) and capable of free radical polymerization.
    • 潜在交联的水性聚氨酯分散体含有I)含有I)聚氨酯(Ia)的分散相(PI),除了产生水分散性的亲水基团之外,聚氨酯(Ia)还含有碳二亚胺基团并且基本上不含羧基,或Ib)Ibi的物理混合物 Ibi),其携带产生水分散性且基本上不携带碳二亚胺或羧基的亲水基团,和Ibii)基本上不具有产生水分散性的亲水基团的碳二亚胺(Ibii),和II)含有另一种聚合物的分散相(P.II) (II),其基本上不携带碳二亚胺基团,并且基本上衍生自II.1)30至99.98重量%的选自C 1 -C 20烷基(甲基)丙烯酸酯的主要单体,至多20个碳原子的羧酸的乙烯基酯 原子,高达20个碳原子的乙烯基芳烃,烯属不饱和腈,乙烯基卤化物和具有2至8个碳原子的脂族烃 碳原子和1或2个双键,II.2)0.01至20重量%的具有烯属双键的羧酸和II.3)0.01至10重量%的不同于单体II.1的单体 选自N-羟甲基(甲基)丙烯酰胺(AMOL),(MAMOL),(甲基)丙烯酸乙酰乙酰氧基乙酯,双丙酮(甲基)丙烯酰胺,(甲基)丙烯酸缩水甘油酯,脲基(甲基)丙烯酸酯和 (甲基)丙烯酸酐,以及II.4)如果需要,不同于(II.1),(II.2)和(II.3)并且能够进行自由基聚合的单体。
    • 63. 发明授权
    • Apparatus and method for calculating a result in a scalar multiplication
    • 用于计算标量乘法中的结果的装置和方法
    • US09400636B2
    • 2016-07-26
    • US13025221
    • 2011-02-11
    • Bernd Meyer
    • Bernd Meyer
    • G06F21/00G06F7/72H04L9/00H04L9/30
    • G06F7/725G06F2207/7223H04L9/003H04L9/3066H04L2209/08
    • An apparatus for calculating a result of a scalar multiplication of a reference number with a reference point on an elliptic curve includes a random number generator and processor. The random number generator generates a random bit. The processor calculates the result of the scalar multiplication based on a calculation algorithm using a first auxiliary variable storing a first interim result representing an integer multiple of the reference point or a coordinate of an integer multiple of the reference point and a second auxiliary variable storing a second interim result representing another integer multiple of the reference point or a coordinate of another integer multiple of the reference point. The processor swaps a value stored by the first auxiliary variable and a value stored by the second auxiliary variable during calculation of the result of the scalar multiplication, if a swap condition depending on the generated random bit is fulfilled.
    • 用于计算参考数与椭圆曲线上的参考点的标量乘积的结果的装置包括随机数发生器和处理器。 随机数生成器生成一个随机位。 处理器基于使用存储表示参考点的整数倍的第一中间结果或参考点的整数倍的坐标的第一辅助变量和存储参考点的整数倍的坐标的第一辅助变量来计算标量乘法的结果 表示参考点的另一整数倍的第二临时结果或参考点的另一整数倍的坐标。 如果满足取决于所生成的随机位的交换条件,则处理器在计算标量乘法的结果期间交换由第一辅助变量存储的值和由第二辅助变量存储的值。
    • 65. 发明授权
    • Method and device for generating random wait states
    • 用于生成随机等待状态的方法和设备
    • US08660262B2
    • 2014-02-25
    • US13560522
    • 2012-07-27
    • Markus DichtlBernd Meyer
    • Markus DichtlBernd Meyer
    • H04K1/00H04L9/00H04L9/28
    • G06F21/755
    • A random source for generating a random number r with a bit length k, r=r0, . . . , rk-1, a memory for storing a threshold value state variable s, which is represented by a number with a bit length n≧k, s=s0, . . . , sn-1, and a comparator to compare two numbers with a bit length k, i.e. from r with a subset of the bits from s are provided. Two calculation rules R1 and R2, which are able to change the content of the memory for the threshold value state variable s (i.e. functions from s to s), are defined for a method of generating random wait states.
    • 用于产生具有位长度k的随机数r的随机源,r = r0,。 。 。 ,rk-1,用于存储阈值状态变量s的存储器,其由比特长度n> = k,s = s0的数字表示。 。 。 ,sn-1和比较器,用于比较具有比特长度k的两个数字,即从具有来自s的比特的子集的r。 对于生成随机等待状态的方法,定义了能够改变阈值状态变量s(即从s到s的函数)的存储器的内容的两个计算规则R1和R2。
    • 66. 发明申请
    • Method And System For The Accelerated Decryption Of Cryptographically Protected User Data Units
    • 加密解密密码保护用户数据单元的方法和系统
    • US20120321088A1
    • 2012-12-20
    • US13508707
    • 2010-10-12
    • Michael BraunMarkus DichtlBernd Meyer
    • Michael BraunMarkus DichtlBernd Meyer
    • H04L9/08
    • H04L9/0825
    • A method and system for accelerated decryption of a cryptographically protected user data unit, wherein a transmitter initially generates a cryptographic key that is provided with a related key identification. The transmitter then performs asymmetrical encryption of the generated cryptographic key using a public cryptographic key and encryption of at least one user data unit using the generated cryptographic key. The encrypted user data unit, the asymmetrically encrypted cryptographic key and the related key identification of the cryptographic key are transported to a receiver that decrypts the received asymmetrically encrypted key using a private key, if verification of the received related key identification of the cryptographic key indicates the cryptographic key is not present in a decrypted state in the receiver. The receiver then decrypts the received cryptographically encrypted user data unit using the cryptographic key in the receiver or with the cryptographic key decrypted using the private key.
    • 一种用于加密解密密码保护的用户数据单元的方法和系统,其中发射机最初生成具有相关密钥标识的加密密钥。 然后,发射机使用公共加密密钥对所生成的加密密钥进行不对称加密,并使用生成的加密密钥对至少一个用户数据单元进行加密。 如果加密密钥的加密用户数据单元,非对称加密的加密密钥和密钥的相关密钥标识被传送到使用专用密钥对接收到的非对称加密密钥进行解密的接收机, 加密密钥在接收机中不存在于解密状态。 然后,接收机使用接收机中的加密密钥或使用私钥解密的加密密钥来解密所接收的密码加密的用户数据单元。
    • 67. 发明授权
    • Method and device for processing data
    • 处理数据的方法和设备
    • US08300811B2
    • 2012-10-30
    • US12634195
    • 2009-12-09
    • Jean GeorgiadesAnton KarglBernd Meyer
    • Jean GeorgiadesAnton KarglBernd Meyer
    • H04K1/00
    • H04L9/002H04L9/3066
    • The embodiments provides a method for processing data. According to the invention, an elliptic curve with an order m which corresponds to a product of a first cofactor c and a prime number q is provided, wherein the order (q−1) of the multiplicative group of the prime number q corresponds to a product of a second cofactor I and at least two prime divisors s1, . . . , sk, wherein the at least two prime divisors s1, . . . , sk are each greater than a predetermined bound of 2n; and a chosen method is applied to provided data using the provided elliptic curve for providing cryptographically transformed data. The invention enables cryptographically transformed data to be provided while simultaneously minimizing the probability of a successful attack.
    • 实施例提供了一种处理数据的方法。 根据本发明,提供了具有对应于第一辅因子c和素数q的乘积的阶数m的椭圆曲线,其中素数q的乘法群的阶数(q-1)对应于 第二辅因子I和至少两个主要除数s1的乘积。 。 。 ,其中,所述至少两个素数s 1, 。 。 ,sk各自大于2n的预定界限; 并且使用所提供的椭圆曲线将所选择的方法应用于提供数据,以提供加密变换的数据。 本发明允许提供加密变换的数据,同时最小化成功攻击的概率。
    • 70. 发明申请
    • APPARATUS AND METHOD FOR GENERATING A RANDOM BIT SEQUENCE
    • 用于生成随机位序列的装置和方法
    • US20110163818A1
    • 2011-07-07
    • US13119765
    • 2009-07-30
    • Markus DichtlBernd Meyer
    • Markus DichtlBernd Meyer
    • H03K3/03
    • G06F7/588H03K3/84H04L9/0861
    • An apparatus for generating a random bit sequence has a ring oscillator which includes inverting digital devices and on which an oscillator signal can be tapped. An intermediate storage element monitors and stores fluctuating levels of the oscillator signal. At least two controllable switch devices for simultaneously exciting at least two harmonic wave edges of the ring oscillator are provided in a signal path of the ring oscillator. The phasing of the two harmonic wave edges and a potential convergence thereof are subject to statistical fluctuations, which are used as a basis for the random bit generation. A corresponding random number generator can be used in particular as an FPGA for security applications, such as cryptographic methods. The apparatus has substantially digital components, which are easy to produce in a standardized manner. A dedicated regulating circuit is not necessary. The apparatus is also robust toward exterior influences.
    • 用于产生随机比特序列的装置具有环形振荡器,其包括倒相数字装置,并且可以在其上敲击振荡器信号。 中间存储元件监视和存储振荡器信号的波动电平。 在环形振荡器的信号路径中设置有用于同时激励环形振荡器的至少两个谐波边缘的至少两个可控开关装置。 两个谐波边缘的相位和其潜在的收敛受到统计波动的影响,这些波形被用作随机比特生成的基础。 相应的随机数发生器可以特别用作安全应用的FPGA,例如加密方法。 该装置具有基本上数字的部件,其易于以标准化的方式产生。 专用的调节电路不是必需的。 该装置对于外部影响也是坚固的。