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    • 1. 发明授权
    • Processing of biometric data by transformation
    • 通过转换处理生物特征数据
    • US08850299B2
    • 2014-09-30
    • US12637192
    • 2009-12-14
    • Hervé ChabanneJulien Bringer
    • Hervé ChabanneJulien Bringer
    • H03M13/00G07C9/00H04L9/32
    • G07C9/00158H04L9/3231H04L9/3236H04L2209/34
    • Biometric data relating to a biological part are processed by obtaining, on the one hand, a first set of transformed biometric data (f(B1)) by applying at least one irreversible transformation to a first set of biometric data (B1), and, on the other hand, a second set of transformed biometric data (f(B2)) by applying said transformation to a second set of biometric data (B2). Thereafter, a decision is made as to whether the second biometric data set corresponds to the first biometric data set on the basis of a comparison between the first transformed biometric data set and the second transformed biometric data set, said comparison being performed at the bit level of a digital representation of said first and second transformed biometric data sets as a function of an error corrector code word.
    • 通过对第一组生物特征数据(B1)应用至少一个不可逆变换,一方面获得第一组变换的生物体数据(f(B1))来处理与生物部位有关的生物特征数据, 另一方面,通过将所述变换应用于第二组生物特征数据(B2),将第二组变换的生物特征数据(f(B2))。 此后,基于第一变换生物统计数据组和第二变换生物统计数据集之间的比较,确定第二生物统计数据集是否对应于第一生物统计数据集,所述比较是在比特级执行的 所述第一和第二变换的生物统计数据集的数字表示作为误差校正码字的函数。
    • 5. 发明申请
    • Processing Biometric Data in a Multidimensional Coordinate System
    • 在多维坐标系中处理生物特征数据
    • US20090231096A1
    • 2009-09-17
    • US12294608
    • 2007-03-20
    • Julien BringerHerve ChabanneMartin Cottard
    • Julien BringerHerve ChabanneMartin Cottard
    • G06F7/04
    • G06K9/00885G06K9/00087G06K9/00597
    • The invention concerns a biometric system provided with a set of reference biometric data (B′i) resulting from the application of a disjunction between a first set of biometric data (Bi) and a first encoded key (Ki), and from an information concerning the first key. A second set of biometric data (B2) is obtained. A second encoded key is determined by using a disjunction between the set of reference biometric data and the second set of biometric data. The second key is decoded by iterative decoding. Then, it is determined whether the first and second sets of biometric data mutually correspond by comparing the information concerning the first key with the second key. The first and second sets of biometric data are expressed in a multidimensional repository with N dimensions, the biometric data according to at least one of the N dimensions being obtained by using processes relative to the biometric part; and the first encoded key is obtained by using an encoding transforming an initial word of specific length into an encoded word in the multidimensional repository.
    • 本发明涉及一种生物测定系统,其具有由在第一组生物特征数据(Bi)和第一编码密钥(Ki)之间的分离的应用而得到的一组参考生物测定数据(B'i) 第一个关键 获得第二组生物特征数据(B2)。 第二编码密钥通过使用参考生物测定数据集与第二组生物特征数据之间的分离来确定。 第二个键通过迭代解码进行解码。 然后,通过将关于第一密钥的信息与第二密钥进行比较来确定第一组和第二组生物特征数据是否相互对应。 第一组和第二组生物特征数据在具有N维的多维存储库中表达,根据N维中的至少一个通过使用相对于生物特征部分的过程获得的生物特征数据; 并且通过使用将特定长度的初始字变换为多维存储库中的编码字的编码来获得第一编码密钥。
    • 6. 发明授权
    • Biometric coding
    • 生物识别编码
    • US09412004B2
    • 2016-08-09
    • US13518490
    • 2010-12-23
    • Julien BringerVincent Despiegel
    • Julien BringerVincent Despiegel
    • G06K9/00G06F21/32
    • G06K9/00087G06F21/32
    • A database stores a number N of biometric data representatives which correspond to a set of characteristics of said biometric data. Acquired biometric data is obtained. Then, transformed biometric data is obtained by transforming the acquired biometric data according to said set of characteristics. Next, N deviation values are obtained by applying a comparison between the transformed biometric data and the N representatives in the database. Finally, a vector representing the acquired biometric data is obtained, the representation vector having a number of components less than or equal to N, said components being determined in relation to said N deviation values.
    • 数据库存储对应于所述生物特征数据的一组特征的数目N的生物特征数据代表。 获得获得的生物特征数据。 然后,通过根据所述一组特征变换获取的生物特征数据来获得变换的生物特征数据。 接下来,通过在数据库中应用变换的生物特征数据和N个代表之间的比较来获得N个偏差值。 最后,获得表示所获取的生物特征数据的向量,所述表示向量具有小于或等于N的分量的数目,所述分量相对于所述N个偏差值确定。
    • 8. 发明授权
    • Method of executing a cryptographic calculation
    • 执行密码计算的方法
    • US08681972B2
    • 2014-03-25
    • US12600197
    • 2008-05-09
    • Herve ChabanneJulien BringerThomas Icart
    • Herve ChabanneJulien BringerThomas Icart
    • G06F21/00
    • H04L9/0866H04L9/0836H04L9/321H04L2209/805
    • A cryptographic calculation is executed in an electronic component, according to a cryptographic algorithm including at least one application of a one-way function which is disabled upon an intrusion into the electronic component. The one-way function is based on a first affine operation corresponding to a first secret key. The one-way function is applied, by obtaining (11) first and second random values (r, r′), then, by obtaining a first result (13) by applying a second affine operation (σK1), which corresponds to a second secret key, to a first combination (12) of the first and second random values, and, by obtaining (14) thereafter a second result by applying a third affine operation (σK2) which corresponds to a third secret key to said first result. The combination of the third and second affine operations (σK1 o σK2) corresponds to the first affine operation; and a cryptographic operation is moreover applied (15) to one at least among said second result and a second combination of the first and second random values.
    • 根据密码算法,在电子部件中执行加密计算,所述加密算法包括在侵入电子部件时被禁用的单向功能的至少一个应用。 单向功能基于对应于第一秘密密钥的第一仿射操作。 应用单向函数,通过获得(11)第一和第二随机值(r,r'),然后通过应用第二个仿射运算(&sgr; K1)获得第一个结果(13) 第二秘密密钥,涉及第一和第二随机值的第一组合(12),并且通过将对应于第三秘密密钥的第三仿射操作(&Sgr; K2)应用于第二结果,获得第二结果(14) 说第一个结果。 第三次和第二次仿射操作(&sgr; K1 o&sgr; K2)的组合对应于第一次仿射操作; 并且至少在所述第二结果和第一和第二随机值的第二组合中至少应用(15)至一个加密操作。
    • 9. 发明授权
    • Method of determining a pseudo-identity on the basis of characteristics of minutiae and associated device
    • 基于细节和相关设备的特性确定伪身份的方法
    • US08594394B2
    • 2013-11-26
    • US13060689
    • 2009-08-31
    • Julien BringerHerve Chabanne
    • Julien BringerHerve Chabanne
    • G06K9/00
    • G06K9/00093G06K9/001
    • Additional information regarding a fingerprint is estimated, with a given level of confidence, on the basis of characteristics of a set of minutiae corresponding to this print. Local descriptors are determined around some at least of the minutiae, so that they comprise, in relation to zones comprising additional information estimated with the given confidence level, values calculated on the basis of said information and, in relation to zones not comprising such information, erasures. The local descriptors determined are quantized according to a given number of integer values, a value being reserved for erasures. The quantized local descriptors are coded with the aid of an error-tolerant coding algorithm associated with a decoding algorithm devised to take account of errors and erasures. And a pseudo-identity is determined on the basis of some at least of the coded quantized local descriptors.
    • 基于与此打印相对应的一组细节的特征,估计关于指纹的附加信息,具有给定的置信水平。 局部描述符是围绕一些至少细节确定的,使得它们包括关于包含以给定置信水平估计的附加信息的区域,基于所述信息计算的值,并且关于不包括这些信息的区域, 擦除 确定的局部描述符根据给定数量的整数值进行量化,一个值被保留用于擦除。 量化的局部描述符借助与解码算法相关联的容错编码算法进行编码,以解决误差和擦除。 并且基于一些至少编码量化的局部描述符来确定伪身份。