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公开(公告)号：US06696779B2
公开(公告)日：2004-02-24
申请号：US10095831
申请日：2002-03-12
申请人： Pim Theo Tuyls
发明人： Pim Theo Tuyls
IPC分类号： H01J2970
CPC分类号： H01J29/76 , H01J2229/7031
摘要： The present invention relates to a yoke ring for use in a deflection unit in a cathode ray tube (CRT). The yoke ring having a neck and a flared side, and being defined by an inner and an outer contour. According to the invention, the inner contour is periodically deformed in the radial direction, the contour having at least two local minima and maxima. This deformation influences the magnetic field generated by the coils in the CRT, leading to improved front-of-screen performance. In particular, astigmatism, coma and raster errors are reduced.
摘要翻译： 本发明涉及一种用于阴极射线管（CRT）中的偏转单元的轭环。 轭环具有颈部和扩张侧，并且由内外轮廓限定。 根据本发明，内轮廓在径向上周期性变形，轮廓具有至少两个局部最小值和最大值。 这种变形影响CRT中线圈产生的磁场，从而提高了屏幕前的性能。 特别地，散光，昏迷和光栅错误减少。
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公开(公告)号：US09247024B2
公开(公告)日：2016-01-26
申请号：US12595671
申请日：2008-04-04
CPC分类号： H04L67/34 , G06F21/10 , H04L9/321 , H04L9/3278 , H04L63/08 , H04L63/10 , H04L67/12 , H04L2209/60 , H04L2209/80
摘要： A method of and system (110) for controlled activation of at least one function in a product or component at a remote location, which activation requires a correct activation data item to be available in the product or component. The method comprises receiving one or more noisy outputs of an unclonable element associated with the component from the remote location, and providing helper data to the remote location, which helper data transforms the one or more noisy outputs to a single value which corresponds to the correct activation data item.
摘要翻译： 一种用于受控激活远程位置的产品或组件中的至少一个功能的方法和系统（110），该激活需要在产品或组件中可用的正确的激活数据项。 该方法包括从远程位置接收与组件相关联的不可克隆元件的一个或多个噪声输出，以及向远程位置提供帮助数据，哪个帮助数据将一个或多个噪声输出转换成对应于正确的单个值 激活数据项。
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公开(公告)号：US08819409B2
公开(公告)日：2014-08-26
申请号：US13501875
申请日：2010-10-20
申请人： Christiaan Kuipers , Pim Theo Tuyls
发明人： Christiaan Kuipers , Pim Theo Tuyls
CPC分类号： H04L9/3278 , G06F21/10 , G06F2221/0711 , G06F2221/0753 , G06F2221/0755 , H04L9/08 , H04L9/0866 , H04L9/32 , H04L9/3271 , H04L2209/34 , H04L2209/60 , H04L2209/80
摘要： A distribution system and method for distributing digital information is provided, which has high recoverability from a security breach. The distribution system comprises a server (200) and a computing device (110). During an enrollment phase, the computing device obtains a first response from an integrated physically unclonable function (150) integrated in the computing device. The system comprises an enrollment module (130) for determining helper data from a decryption key and the first response to enable later reconstruction of the decryption key from the helper data and a second response obtained from the physically unclonable function. During a reconstruction phase, which occurs after the enrollment phase and typically after a security breach has occurred that revealed data and/or programming code of the computing device, the server may encrypt digital information using an encryption module (220) with a cryptographic encryption key corresponding to the decryption key.
摘要翻译： 提供了一种用于分发数字信息的分发系统和方法，其具有从安全漏洞的高可恢复性。 分配系统包括服务器（200）和计算设备（110）。 在注册阶段，计算设备从集成在计算设备中的集成的物理上不可克隆功能（150）获得第一响应。 该系统包括用于从解密密钥确定帮助数据的登记模块（130）和用于能够从辅助数据稍后重建解密密钥的第一响应以及从物理不可克隆功能获得的第二响应。 在重建阶段期间，其在注册阶段之后发生，并且通常在发生了显示计算设备的数据和/或编程代码的安全漏洞之后，使用具有密码加密密钥的加密模块（220）来加密数字信息 对应于解密密钥。
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公开(公告)号：US08775809B2
公开(公告)日：2014-07-08
申请号：US12515020
申请日：2007-11-12
IPC分类号： G06F21/00
CPC分类号： H04L9/3231 , H04L9/3247 , H04L2209/805
摘要： A method and a device of verifying the validity a digital signature based on biometric data. A verifier attains a first biometric template of the individual to be verified, for instance by having the individual provide her fingerprint via an appropriate sensor device. Then, the verifier receives a digital signature and a second biometric template. The verifier then verifies the digital signature by using either the first or the second biometric template as a public key. The attained (first) biometric template of the individual is compared with the received (second) biometric template associated with the signature and if a match occurs, the verifier can be confident that the digital signature and the associated (second) biometric template have not been manipulated by an attacker for impersonation purposes.
摘要翻译： 一种基于生物特征数据验证数字签名的有效性的方法和装置。 验证者获得要验证的个体的第一生物特征模板，例如通过使个体通过适当的传感器装置提供她的指纹。 然后，验证者接收数字签名和第二生物特征模板。 验证者然后通过使用第一或第二生物特征模板作为公钥来验证数字签名。 将获得的（第一）个体生物特征模板与与签名相关联的接收（第二）生物特征模板进行比较，并且如果匹配发生，验证者可以确信数字签名和相关联的（第二）生物测定模板尚未被 由攻击者为了冒充目的操纵。
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55.发明申请公开(公告)号：US20120072737A1
公开(公告)日：2012-03-22
申请号：US13254356
申请日：2010-02-10
CPC分类号： H04L9/3278 , G06F7/588 , H04L9/0816 , H04L9/304 , H04L2209/08
摘要： In systems for establishing a cryptographic key depending on a physical uncloneable function (PUF) it may be a problem that internal information correlated with the cryptographic key is leaked to the outside of the system via a side-channel. To mitigate this problem a cryptographic system for reproducibly establishing a cryptographic key is presented. The system comprises a physical system comprising a physical, at least partially random, configuration of components from which an initial bit-string is derived. An error corrector corrects deviations occurring in the initial bit-string. Through the use of randomization the error corrector operates on a randomized data. Information leaking through a side channel is thereby reduced. After error correction a cryptographic key may be derived from the initial bit-string.
摘要翻译： 在用于根据物理不可克隆功能（PUF）建立加密密钥的系统中，可能是与密码密钥相关的内部信息经由侧信道泄漏到系统外部的问题。 为了减轻这个问题，提出了一种用于可重复地建立加密密钥的加密系统。 该系统包括物理系统，其包括从其导出初始位串的部件的物理的，至少部分随机的配置。 错误校正器纠正在初始位串中发生的偏差。 通过使用随机化，误差校正器对随机数据进行操作。 因此，通过侧通道泄漏的信息被减少。 在纠错之后，可以从初始位串导出加密密钥。
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公开(公告)号：US20100054466A1
公开(公告)日：2010-03-04
申请号：US12515814
申请日：2007-11-26
申请人： Timothy Kerins , Klaus Kursawe , Pim Theo Tuyls
发明人： Timothy Kerins , Klaus Kursawe , Pim Theo Tuyls
CPC分类号： G06F7/588 , H04L9/0625 , H04L9/0631 , H04L9/0662 , H04L9/3278
摘要： The invention provides a method of generating arbitrary numbers given a seed, characterized by providing a challenge derived from the seed to a physical token, receiving an initial response from the physical token, combining the initial response with helper data associated with the challenge to produce a stable response, and generating the arbitrary numbers using a pseudo-random number generator using the stable response as a seed for the generator. Preferably one or more of these pseudo-random permutations are used as one or more round function(s) in a Feistel block cipher. The generated arbitrary numbers may also be used to create a cryptographic key.
摘要翻译： 本发明提供了一种产生给种子的任意数字的方法，其特征在于将从种子导出的挑战提供给物理标记，从物理标记接收初始响应，将初始响应与与挑战相关联的辅助数据组合以产生 稳定响应，并且使用使用稳定响应作为发生器的种子的伪随机数发生器来生成任意数。 优选地，这些伪随机排列中的一个或多个用作Feistel块密码中的一个或多个轮函数。 生成的任意数字也可以用于创建加密密钥。
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公开(公告)号：US20100027784A1
公开(公告)日：2010-02-04
申请号：US11722443
申请日：2005-12-22
CPC分类号： G06F21/32 , H04L9/0866 , H04L9/32 , H04L9/3231 , H04L9/3236 , H04L63/061 , H04L63/0861
摘要： There is provided a method of generating a key for encrypting Communications between first and second terminals comprising obtaining a measurement of characteristics of a physical identifier of a user; and extracting a key from the physical identifier using a code selected from a collection of codes, each code in the collection defining an ordered mapping from a set of values of the characteristics to a set of keys; wherein the collection of codes comprises at least one code in which the ordered mapping is a permutation of the ordered mapping of one of the other codes in the collection.
摘要翻译： 提供了一种生成用于加密第一和第二终端之间的通信的密钥的方法，包括获得用户的物理标识符的特性的测量; 以及使用从代码集合中选择的代码从所述物理标识符提取密钥，所述集合中的每个代码从一组特征值定义到一组密钥的有序映射; 其中代码的收集包括至少一个代码，其中有序映射是集合中其他代码之一的有序映射的置换。
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58.发明申请公开(公告)号：US20080314715A1
公开(公告)日：2008-12-25
申请号：US12097520
申请日：2006-11-29
IPC分类号： G07D7/00 , G06K19/067
CPC分类号： G07F7/12 , G06K19/0672 , G06K19/10 , G07D7/01 , G07F7/08
摘要： A security element comprises at least one oscillating circuit (O1-On) and a digital signature (2). Each oscillating circuit (O1-On) comprises a capacitor (C1-Cn) as resonance frequency setting element wherein the capacitor (C1-Cn) consists of two electrodes (8, 10) which are spaced apart from each other and a dielectric (9) that is sandwiched between the two electrodes (8, 10). The capacitor (C1-Cn) of each oscillating circuit has a random capacitance value which randomness is caused by a non-uniform thickness (d) of the dielectric (9) and/or by an inhomogeneous dielectric material. The digital signature (2) comprises reference values indicative for the resonance frequencies (f1-fh) of the oscillating circuits wherein the reference values are digitally signed with a secret key.
摘要翻译： 安全元件包括至少一个振荡电路（O1-On）和数字签名（2）。 每个振荡电路（O1-On）包括作为谐振频率设定元件的电容器（C1-Cn），其中电容器（C1-Cn）由彼此间隔开的两个电极（8,10）和电介质（9 ）夹在两个电极（8,10）之间。 每个振荡电路的电容器（C1-Cn）具有由电介质（9）的不均匀厚度（d）和/或不均匀电介质材料引起的随机电容值。 数字签名（2）包括指示振荡电路的谐振频率（f1-fh）的参考值，其中参考值用秘密密钥进行数字签名。
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公开(公告)号：US20080256600A1
公开(公告)日：2008-10-16
申请号：US12066674
申请日：2006-09-06
IPC分类号： G06F21/00
CPC分类号： G06F21/86 , G06F21/60 , G06F21/72 , G06F2221/2121 , G06F2221/2143 , G09C1/00 , H04L9/0861 , H04L9/14 , H04L9/3218 , H04L9/3278 , H04L2209/805
摘要： This invention relates to physical uncloneable function (PUF) devices for determining authenticity of an item, systems for determining authenticity of a physical item, and methods for determining authenticity of an item. A PUF pattern of the PUF device is damaged when using the item for the first time.
摘要翻译： 本发明涉及用于确定物品的真实性的物理不可克隆功能（PUF）装置，用于确定物理物品的真实性的系统以及用于确定物品的真实性的方法。 PUF设备的PUF图案首次使用时会损坏。
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公开(公告)号：US20080253558A1
公开(公告)日：2008-10-16
申请号：US11576354
申请日：2005-09-21
IPC分类号： H04L9/28
CPC分类号： H04L9/085
摘要： The present invention relates to a system (600) and method for sharing multiple session keys between low-power devices (701) and more advanced devices (702). A polynomial algorithm with a certain number of parameters is used. A large number of parameters are fixed for the low-power devices (701) and a small number of parameters are fixed for the more powerful devices (702).
摘要翻译： 本发明涉及用于在低功率设备（701）和更高级设备（702）之间共享多个会话密钥的系统（600）和方法。 使用具有一定数量参数的多项式算法。 对于低功率设备（701），大量的参数是固定的，并且为更强大的设备（702）固定少数参数。
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