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    • 6. 发明授权
    • Method of encrypting digital data, a method of masking a biometric print, and application to making a security document secure
    • 加密数字数据的方法,屏蔽生物识别打印的方法以及使安全文件安全的应用
    • US07895440B2
    • 2011-02-22
    • US11596560
    • 2005-05-11
    • Cédric CardonnelEric BrierDavid NaccacheJean-Sébastien Coron
    • Cédric CardonnelEric BrierDavid NaccacheJean-Sébastien Coron
    • H04L9/32
    • G07C9/00087
    • The invention relates to a method of masking a plain datum b having n bits. The inventive method is characterised in that a masked datum m is produced using the following masking function: (I), wherein p is a prime number, bi is the bit at position i of plain datum b, and qi is the prime number at position i in a set of prime numbers (q1, . . . , qn). The invention also relates to a method of masking a biometric print, consisting in: determining a set of s real minutiae which are characteristic of the print; mixing and arranging the real minutiae with t false minutiae; and forming a mixed biometric datum b having n=s+t bits, such that, for any i: bi=1 if position i corresponds to a real minutia, and bi=0 if position i corresponds to a false minutia. The invention can be used to secure a security document such as a bank cheque. m = ∏ i = 1 n ⁢ ⁢ q i b i ⁢ mod ⁢ ⁢ p ( I )
    • 本发明涉及一种掩蔽具有n位的普通数据b的方法。 本发明的方法的特征在于,使用以下掩蔽函数产生掩蔽的数据m:(I)其中p是素数,bi是平原数据b的位置i处的位,qi是位置处的素数 我在一组素数(q1,...,qn)中。 本发明还涉及一种掩蔽生物特征印刷的方法,其包括:确定作为印刷特征的一组真实细节; 混合和安排真实细节与虚假细节; 并且形成具有n = s + t位的混合生物测定数据b,使得对于任何i:bi = 1,如果位置i对应于实际细节,并且如果位置i对应于虚拟细节,则bi = 0。 本发明可用于确保诸如银行支票之类的证券文件。 m =Πi = 1 n⁢q i b i mod⁢p(I)
    • 8. 发明申请
    • METHOD OF BIOMETRIC AUTHENTICATION, CORRESPONDING AUTHENTICATION SYSTEM AND PROGRAM
    • 生物识别方法,相应的认证系统和程序
    • US20130040606A1
    • 2013-02-14
    • US13579775
    • 2011-02-17
    • David Naccache
    • David Naccache
    • H04W12/06
    • H04L9/3231H04L63/0492H04L63/0861H04L2209/56H04L2209/80H04W12/06
    • A method and apparatus are provided for biometric authentication of a user to be authenticated, from among a plurality of users, with an authentication system storing a set of pieces of reference biometric data, each associated with one of the users. The method includes providing, by the user to be authenticated, a piece of biometric authentication data by a device for obtaining biometric data from a transactional terminal. A subset of the set of pieces of reference biometric data stored by the authentication system is searched for a piece of reference biometric data corresponding to the user to be authenticated as a function of the piece of biometric authentication data. The step of searching includes filtering the pieces of reference biometric data as a function of: a base station of a mobile communications network; and a set of mobile devices for which a connection indicator is activated for the base station. The transactional terminal is substantially near a zone of coverage of the base station.
    • 提供一种方法和装置,用于从多个用户中进行认证的用户的生物体认证与存储一组参考生物测定数据的认证系统,每一个与一个用户相关联。 该方法包括由用户通过用于从交易终端获取生物特征数据的设备提供一条生物特征认证数据。 搜索由认证系统存储的一组参考生物特征数据的子集,作为与生物认证数据片段相关的待认证的用户对应的参考生物测定数据。 搜索步骤包括:将参考生物测定数据作为以下功能进行过滤:移动通信网络的基站; 以及为基站激活连接指示符的一组移动设备。 事务终端基本上靠近基站的覆盖区域。