EXECUTION OF COMPUTER INSTRUCTIONS WITH RECONFIGURABLE HARDWARE
    1.
    发明申请
    EXECUTION OF COMPUTER INSTRUCTIONS WITH RECONFIGURABLE HARDWARE 审中-公开
    具有可重配硬件的计算机指令的执行

    公开(公告)号:US20090235063A1

    公开(公告)日:2009-09-17

    申请号:US12306124

    申请日:2007-07-02

    IPC分类号: G06F9/44

    CPC分类号: G06F21/123 G06F9/44

    摘要: The invention relates the executing of computer readable instructions on a hardware platform (301) comprising a reconfigurable hardware component (311), such as a field-programmable gate array (FPGA). The reconfigurable hardware component is reconfigured in accordance with a reconfiguration set, and a first application is executed at least partly on the reconfigured hardware component, thereby generating an output. The invention provides a way of obfuscating and tamper-proofing software to be executed on a hardware platform.

    摘要翻译: 本发明涉及在包括诸如现场可编程门阵列(FPGA)的可重配置硬件组件(311)的硬件平台(301)上执行计算机可读指令。 可重新配置的硬件组件根据重新配置集合进行重新配置,并且至少部分地在重新配置的硬件组件上执行第一应用,从而生成输出。 本发明提供一种在硬件平台上执行的混淆和防篡改软件的方法。

    OPTICAL SCANNING DEVICE
    2.
    发明申请
    OPTICAL SCANNING DEVICE 审中-公开
    光学扫描装置

    公开(公告)号:US20090153841A1

    公开(公告)日:2009-06-18

    申请号:US11573947

    申请日:2005-08-15

    IPC分类号: G06K9/74

    摘要: An optical identifier (1) can be used as a Physical Unclonable Function for producing a speckle pattern, as a response, upon being challenged with a light beam, as a challenge. This property can be used for identification of the optical identifier or of an object attached thereto, for the authentication of an information carrier or for generation of transaction keys. Since the response obtained in response to given challenge is highly sensitive to the relative position of the optical identifier, light beam source and detector for the speckle pattern, this relative position has to be accurately adjusted to reliably obtain the same response to a given challenge. To this aim, an optical identifier is proposed having an alignment area (3) for splitting an incident beam into distinct beams (6, 7) which can be detected as alignment signals (10a, 10b, 10c, 10d) on a detector (8) and used for the monitoring and for the adjustment of said relative position.

    摘要翻译: 作为挑战,光学标识符(1)可以用作用于产生斑点图案作为响应的物理不可克隆功能,作为响应。 该属性可以用于识别光学标识符或附加到其上的对象,用于信息载体的认证或用于生成交易密钥。 由于响应于给定挑战而获得的响应对于光学标识符,用于散斑图案的光束源和检测器的相对位置高度敏感,所以必须精确地调整该相对位置以可靠地获得对给定挑战的相同响应。 为此目的,提出一种具有用于将入射光束分成不同光束(6,7)的对准区域(3)的光学识别器,其可以被检测为检测器(8)上的对准信号(10a,10b,10c,10d) )并用于监视和调整所述相对位置。

    Proofs of Vicinity Using Cpufs
    3.
    发明申请
    Proofs of Vicinity Using Cpufs 审中-公开
    使用Cpufs的邻域证明

    公开(公告)号:US20080260152A1

    公开(公告)日:2008-10-23

    申请号:US12094999

    申请日:2006-11-27

    IPC分类号: H04L9/32

    CPC分类号: H04L9/3234 H04L9/3278

    摘要: The present invention relates to a method and a device (104) for authenticating a plurality of physical tokens (101, 102, 103). A basic idea of the invention is to supply a sequence of interconnected devices (108, 109, 110), each device comprising a physical token (101, 102, 103), with a challenge of the respective physical token created during enrollment of said respective physical token, wherein the sequence of interconnected devices is arranged such that a data set supplied to the sequence is cryptographically processed with a response of a token comprised in a device and passed on to a token comprised in a subsequent device which further cryptographically processes the processed data set with its response until a response of a final physical token has been used to further cryptographically process the data set. Then, the data set which has been cryptographically processed with the responses of the tokens in the sequence is received and used together with the data set itself and data associated with the response of the respective token to authenticate the sequence of physical tokens.

    摘要翻译: 本发明涉及一种用于认证多个物理令牌(101,102,103)的方法和装置(104)。 本发明的基本思想是提供一系列互连的设备(108,109,110),每个设备包括物理令牌(101,102,103),在所述相应的设备注册期间产生相应物理令牌的挑战 物理令牌,其中所述互连设备的序列被布置为使得提供给所述序列的数据集通过包含在设备中的令牌的响应进行密码处理,并传递到包含在后续设备中的令牌,所述令牌进一步加密处理 数据集具有其响应,直到最终物理令牌的响应已被用于进一步加密处理数据集。 然后,已经用序列中的令牌的响应进行了密码处理的数据集被接收并与数据集本身一起使用,并且与相应令牌的响应相关联的数据被使用以验证物理令牌的顺序。

    Integrated Puf
    4.
    发明申请
    Integrated Puf 审中-公开
    集成Puf

    公开(公告)号:US20080237506A1

    公开(公告)日:2008-10-02

    申请号:US12090364

    申请日:2006-10-11

    IPC分类号: G01N23/00

    CPC分类号: H04L9/3278 H04L2209/805

    摘要: In a device for providing challenge-response pairs a radiation detection element, a challenge-modifying element and preferably also a light source are arranged on the same side of an imaginary plane, which separates said radiation-detecting element from a radiation scattering element. Hence, generation of a speckle pattern having a desired minimum speckle size is facilitated and a more easily assembled device is provided.

    摘要翻译: 在用于提供挑战 - 响应对的装置中,辐射检测元件,挑战修改元件以及优选地还有光源被布置在虚拟平面的同一侧上,该假平面将辐射检测元件与辐射散射元件分离。 因此,有助于产生具有期望的最小散斑尺寸的散斑图案,并且提供更容易组装的装置。

    Integrated Physical Unclonable Function (Puf) with Combined Sensor and Display
    5.
    发明申请
    Integrated Physical Unclonable Function (Puf) with Combined Sensor and Display 审中-公开
    具有组合传感器和显示器的集成物理不可克隆功能(Puf)

    公开(公告)号:US20080231418A1

    公开(公告)日:2008-09-25

    申请号:US12090414

    申请日:2006-10-02

    IPC分类号: H04L9/32

    摘要: The present invention relates to a device (100, 200, 300) and a method for creating challenge-response pairs. A basic idea of the present invention is to create a challenge in the form of light emitted onto a light scattering element (103, 203), which light will be scattered in the light scattering element and detected as a response to the challenge by light detecting elements (105, 205). The light scattering element comprises a transmissive material which contains randomly distributed light scattering particles (104, 204), which scatter incident light such that a random speckle pattern is created and spread over the light detecting elements. This random pattern is detected by the light detecting elements, and is known as the response to the challenge (i.e. the light) that was supplied to the light scattering element. Hence, a challenge-response pair is created. Further, picture elements (109, 209) are included in the device in order to enable modification of the challenge created by a light source (101, 201) and supplied to the light scattering element. By activating picture elements and thereby modifying the challenge, one will also modify the response that corresponds to the modified challenge.

    摘要翻译: 本发明涉及一种用于创建挑战 - 响应对的装置(100,200,300)和方法。 本发明的基本思想是以光散射元件(103,203)的光的形式产生挑战,该光将散射在光散射元件中,并通过光检测作为对挑战的响应进行检测 元素(105,205)。 光散射元件包括透射材料,其包含随机分布的光散射粒子(104,204),其散射入射光,使得随机散斑图案被产生并分布在光检测元件上。 该随机图案由光检测元件检测,并且被称为对提供给光散射元件的挑战(即,光)的响应。 因此,创建了一个挑战 - 响应对。 此外,图像元素(109,209)包括在装置中,以便能够修改由光源(101,201)产生并提供给光散射元件的挑战。 通过激活图片元素并从而修改挑战,还将修改对应于修改的挑战的响应。

    Method and apparatus for detection of a speckle based physically unclonable function
    7.
    发明申请
    Method and apparatus for detection of a speckle based physically unclonable function 失效
    用于检测基于散斑的物理不可克隆功能的方法和装置

    公开(公告)号:US20070090312A1

    公开(公告)日:2007-04-26

    申请号:US10582383

    申请日:2004-11-24

    IPC分类号: G03C5/16

    CPC分类号: G02B27/48 H04L9/3278

    摘要: An optical arrangement of at least a coherent light source (1), a strongly scattering object (5) (the PUF), and a pixe-lated photo-detector (6), wherein the pixels are comparable in size with the bright and dark patches of the speckle pattern produced by coherent radiation traversing the scattering object (5). Quantitively, the pixel size should be roughly λ/NA, where λ is the wave-length, and (i) NA=a/z for free-space geometry, with a being the beam radius and z being the distance between the exit surface of the PUF (5) and the pixelated detector (6), or (ii) NA is the numerical aperture of a lens (7) in an imaging geometry. In a preferred embodiment of the invention, there are tentative requirements that the pixels should be at least smaller than ηmaxλNA and preferably larger than ηmaxλ/NA, where (in an exemplary embodiment) ηmax=5 and ηmin=0.05, say. It will be understood by a person skilled in the art that the present invention is concerned with the optical arrangement of the PUF (5) and the photo-detector (6), rather than the photo -detector (6) per se.

    摘要翻译: 至少相干光源(1),强散射物体(5)(PUF)和像素照片检测器(6)的光学布置,其中像素在尺寸上与明暗相当 通过穿过散射物体(5)的相干辐射产生的斑点图案的斑块。 数量上,像素尺寸应该大致为λ/ NA,其中λ是波长,和(i)NA =自由空间几何的a / z,其中光束半径和z是出射表面之间的距离 的PUF(5)和像素化检测器(6),或者(ii)NA是成像几何形状中的透镜(7)的数值孔径。 在本发明的优选实施例中,暂时要求像素应该至少小于λmaxλNA,并且优选地大于等于λmax /λ,其中( 在一个示例性实施例中),例如,max = 5和eta分钟= 0.05。 本领域技术人员将理解,本发明涉及PUF(5)和光电检测器(6)的光学布置,而不是光电检测器(6)本身。