Random number generator using an incrementing function

    公开(公告)号:US09792089B2

    公开(公告)日:2017-10-17

    申请号:US14483111

    申请日:2014-09-10

    申请人: Verayo, Inc.

    IPC分类号: G06F7/58 H04L9/06 H04L9/08

    摘要: A random number generator uses a looped circuit that produces pulses dependent on manufacturing variations and noise, and fed into a counting circuit. In certain embodiments, the technology can be merged with a Physical Unclonable Function (PUF) such that a single circuit provides both 1) bits that are unique to each chip that remain fairly similar each time they are queried on the same chip; as well as 2) bits that are random, i.e., different each time the randomness is queried, even on the same device.

    MULTI-FACTOR AUTHENTICATION
    2.
    发明申请
    MULTI-FACTOR AUTHENTICATION 审中-公开
    多因素认证

    公开(公告)号:US20160127346A1

    公开(公告)日:2016-05-05

    申请号:US14294142

    申请日:2014-06-02

    申请人: Verayo, Inc.

    IPC分类号: H04L29/06

    CPC分类号: H04L63/0853 H04L2463/082

    摘要: The disclosed invention is a system and method that allows for authentication of a user to a network using a token. The user can use movements or gesture that are recorded by an accelerometer and the token interacts with a device and authenticates the user to the system. The token may be part of the device or stand alone. The various aspects of the present invention capture a novel design for an authentication token that authenticated the token and the user of the token.

    摘要翻译: 所公开的发明是一种系统和方法,其允许使用令牌向网络认证用户。 用户可以使用由加速度计记录的运动或手势,并且令牌与设备进行交互并向系统认证用户。 令牌可以是设备的一部分或独立的。 本发明的各个方面捕获认证令牌和令牌的用户的认证令牌的新颖设计。

    Soft message signing
    3.
    发明授权
    Soft message signing 有权
    软邮件签名

    公开(公告)号:US08667283B2

    公开(公告)日:2014-03-04

    申请号:US13103451

    申请日:2011-05-09

    IPC分类号: H04L29/06

    摘要: A message is signed using a PUF without having to exactly regenerate a cryptographic key. Another party that shares information about the PUF is able to verify the signature to a high degree of accuracy (i.e., high probability of rejection of a forged signature and a low probably of false rejection of a true signature). In some examples, the information shared by a recipient of a message signature includes a parametric model of operational characteristics of the PUF used to form the signature.

    摘要翻译: 使用PUF签名消息,而不必完全重新生成加密密钥。 共享关于PUF的信息的另一方能够以高精确度验证签名(即,拒绝伪造签名的可能性很高,并且可能是真正签名的错误拒绝)。 在一些示例中,消息签名的接收方共享的信息包括用于形成签名的PUF的操作特征的参数模型。

    AUTHENTICATION TOKEN
    4.
    发明申请
    AUTHENTICATION TOKEN 审中-公开
    验证码

    公开(公告)号:US20130298211A1

    公开(公告)日:2013-11-07

    申请号:US13855704

    申请日:2013-04-02

    IPC分类号: H04L29/06

    CPC分类号: H04L63/08 H04L9/3278

    摘要: The disclosed invention is a system and method that allows for authentication of a user to a network using a token. The token interacts with a device and authenticates the user to the system. The token may be part of the device or stand alone. The various aspects of the present invention capture a novel design for an authentication token that eliminates the need for user interaction with the token.

    摘要翻译: 所公开的发明是一种系统和方法,其允许使用令牌向网络认证用户。 令牌与设备进行交互,并将用户认证给系统。 令牌可以是设备的一部分或独立的。 本发明的各个方面捕获了用于认证令牌的新颖设计,其消除了与令牌的用户交互的需要。

    NON-NETWORKED RFID-PUF AUTHENTICATION
    5.
    发明申请
    NON-NETWORKED RFID-PUF AUTHENTICATION 有权
    非网络RFID-PUF认证

    公开(公告)号:US20100127822A1

    公开(公告)日:2010-05-27

    申请号:US12623045

    申请日:2009-11-20

    申请人: Srinivas Devadas

    发明人: Srinivas Devadas

    IPC分类号: G06F7/04 H04L9/32

    CPC分类号: H04L9/3278 H04L2209/805

    摘要: An integrated circuit includes a sequence generator configured to generate a series of challenges; a hidden output generator configured to generate a series of hidden outputs, each hidden output a function of a corresponding challenge in the series of challenges; and bit reduction circuitry configured to generate a response sequence including a plurality of response parts, each response part a function of a corresponding plurality of hidden outputs.

    摘要翻译: 集成电路包括被配置为产生一系列挑战的序列发生器; 隐藏的输出发生器被配置为产生一系列隐藏的输出,每个隐藏的输出都是一系列挑战中的相应挑战的功能; 以及比特缩减电路,被配置为生成包括多个响应部分的响应序列,每个响应部分是对应的多个隐藏输出的功能。

    Authentication with physical unclonable functions
    6.
    发明授权
    Authentication with physical unclonable functions 有权
    使用物理不可克隆功能进行身份验证

    公开(公告)号:US08782396B2

    公开(公告)日:2014-07-15

    申请号:US12234095

    申请日:2008-09-19

    IPC分类号: H04L9/32

    摘要: Physical Unclonable Functions (PUFs) for authentication can be implemented in a variety of electronic devices including FPGAs, RFIDs, and ASICs. In some implementations, challenge-response pairs corresponding to individual PUFs can be enrolled and used to determine authentication data, which may be managed in a database. Later when a target object with a PUF is intended to be authenticated a set (or subset) of challenges are applied to each PUF device to authenticate it and thus distinguish it from others. In some examples, authentication is achieved without requiring complex cryptography circuitry implemented on the device. Furthermore, an authentication station does not necessarily have to be in communication with an authority holding the authentication data when a particular device is to be authenticated.

    摘要翻译: 用于认证的物理不可克隆功能(PUF)可以在包括FPGA,RFID和ASIC的各种电子设备中实现。 在一些实现中,对应于各个PUF的挑战 - 响应对可以被注册并用于确定可以在数据库中管理的认证数据。 之后当具有PUF的目标对象旨在被认证时,将对每个PUF设备应用一组(或子集)的挑战来对其进行认证,从而将其与其他人区分开。 在一些示例中,实现认证,而不需要在设备上实现复杂的加密电路。 此外,当特定设备要被认证时,认证站不一定必须与保存认证数据的机构进行通信。

    Signal generator based device security
    7.
    发明授权
    Signal generator based device security 有权
    基于信号发生器的设备安全

    公开(公告)号:US08630410B2

    公开(公告)日:2014-01-14

    申请号:US11626639

    申请日:2007-01-24

    IPC分类号: G06F21/00

    摘要: Subsets of multiple signal generator circuits embodied in a device are selected, and then a volatile value for the device is generated from the selected subsets. The volatile value may be used for authentication of the device and/or for cryptographic procedures performed on the device. The signal generator circuits may each comprise an oscillator circuit, and the selection of the subsets may be according to a comparison of the outputs of the subsets of circuits, for example, according to a comparison of output oscillation frequencies.

    摘要翻译: 选择体现在设备中的多个信号发生器电路的子集,然后从所选择的子集产生装置的易失性值。 易失性值可以用于设备的认证和/或用于在设备上执行的密码过程。 信号发生器电路可以各自包括振荡器电路,并且子集的选择可以根据电路子集的输出的比较,例如根据输出振荡频率的比较。

    INDEX-BASED CODING WITH A PSEUDO-RANDOM SOURCE
    8.
    发明申请
    INDEX-BASED CODING WITH A PSEUDO-RANDOM SOURCE 有权
    基于索引的编码与PSEUDO随机源

    公开(公告)号:US20110033041A1

    公开(公告)日:2011-02-10

    申请号:US12850693

    申请日:2010-08-05

    IPC分类号: H04L9/28 G06F11/07

    摘要: Outputs from at least one pseudo-random source are used to encode hidden value. The hidden value is encoded using index based quantities, for example, based on numerically ordering a sequence of outputs from pseudo-random source(s). In some examples, the numerical ordering of re-generated device-specific quantities is used to re-generate the hidden value, without necessarily requiring additional error correction mechanisms. Information leak may be reduced by constructing system whose “syndrome” helper bits are random, as measured, for example, by NIST's Statistical Tests for Randomness In some examples, index based coding provides coding gain that exponentially reduces total error correction code complexity, resulting in efficiently realizable PRS-based key generation systems. In some examples, index based coding allows noisy PRS to be robust across conditions where conventional error correction code cannot error correct.

    摘要翻译: 来自至少一个伪随机源的输出用于对隐藏值进行编码。 隐藏值使用基于索引的量来编码,例如,基于从伪随机源的输出序列的数值排序。 在一些示例中,重新生成的设备特定量的数值排序用于重新生成隐藏值,而不需要额外的纠错机制。 信息泄漏可以通过构建其“综合征”辅助位是随机的系统来减少,例如,通过NIST的随机统计测试来测量。在一些示例中,基于索引的编码提供指数地降低总纠错码复杂度的编码增益,导致 有效实现的基于PRS的密钥生成系统。 在一些示例中,基于索引的编码允许有噪声的PRS在常规纠错码不能正确错误的情况下是稳健的。