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1. 发明申请

US20060147039A1 Data encryption method cryptographic system and associated component 审中-公开
标题翻译：数据加密方法加密系统及相关组件
公开(公告)号：US20060147039A1
公开(公告)日：2006-07-06
申请号：US10522420
申请日：2003-07-25
申请人： Jean-Sebastien Coron , Marc Joye , David Naccache , Pascal Paillier
发明人： Jean-Sebastien Coron , Marc Joye , David Naccache , Pascal Paillier
IPC分类号： H04L9/28
CPC分类号： H04L9/302 , H04L9/3249
摘要： An encryption method in which a clear message (m) is formatted with a formatting function (p), and in which the result of the formatting step is exponentiated using a public key (N, e) in accordance with the relationship c=μ(m)e mod N, c being an encrypted message, μ(m) being the result of the formatting step, and e and N elements of the public key. The formatting function (μ) is the PSS function. The invention is applicable to cryptography, for example of RSA type, for smart cards for instance.
摘要翻译：一种加密方法，其中清除消息（m）用格式化函数（p）格式化，并且其中格式化步骤的结果使用公钥（N，e）根据关系c = mu（ m）作为加密消息，作为格式化步骤的结果的mu（m），以及公开密钥的e和N个元素。格式化功能（mu）是PSS功能。本发明可应用于例如用于智能卡的RSA类型的密码学。

2. 发明授权

US07123717B1 Countermeasure method in an electronic component which uses an RSA-type public key cryptographic algorithm 有权
标题翻译：使用RSA型公钥密码算法的电子部件中的对策方法
公开(公告)号：US07123717B1
公开(公告)日：2006-10-17
申请号：US10110315
申请日：2000-10-13
申请人： Jean-Sebastien Coron , Pascal Paillier
发明人： Jean-Sebastien Coron , Pascal Paillier
IPC分类号： H04K1/00 , H04L9/00 , H04L9/28 , G06F1/26 , G06F1/32
CPC分类号： H04L9/003 , H04L9/302 , H04L2209/08
摘要： A countermeasure method in an electronic component which uses an RSA-type public key cryptographic algorithm. A first countermeasure method uses a random calculation for each new execution of the decryption algorithm with CRT. The calculations are made modulo p*r and q*t, r and t being random numbers. A second countermeasure makes the recombination random using the CRT theorem.
摘要翻译：一种使用RSA型公钥密码算法的电子部件中的对策方法。第一对策方法是利用CRT对每个新的解密算法的执行进行随机计算。计算得到模p * r和q * t，r和t是随机数。第二个对策是使用CRT定理随机使用重组。

3. 发明申请

US20050011946A1 Biometric identification method and device adapted to verification on chip cards 有权
标题翻译：适用于芯片卡验证的生物识别方法和装置
公开(公告)号：US20050011946A1
公开(公告)日：2005-01-20
申请号：US10859978
申请日：2004-06-04
申请人： David Naccache , Claude Barral , Jean-Sebastien Coron , Cedric Cardonnel
发明人： David Naccache , Claude Barral , Jean-Sebastien Coron , Cedric Cardonnel
IPC分类号： G06K9/00 , G06K5/00
CPC分类号： G06K9/00087
摘要： A method and associated device for checking a biometric signature by a simple and secure calculation adapted to personal objects of the chip card type. The method is based on the storage within the object of an obscured biometric signature and an associated authentication code. A terminal capturing a fingerprint compares the fingerprint data with the obscured biometric signature transmitted by the card and transfers the result of this comparison to the chip card, which validates this result with the authentication code.
摘要翻译：一种用于通过适合于芯片卡类型的个人对象的简单和安全计算来检查生物特征签名的方法和相关设备。该方法基于被遮蔽的生物特征签名的对象内的存储和相关联的认证码。捕获指纹的终端将指纹数据与由卡发送的隐蔽的生物特征签名进行比较，并将该比较的结果传送到芯片卡，该验证码将验证该结果。

4. 发明申请

US20070183636A1 Method of encrypting digital data, a method of masking a biometric print, and application to making a security document secure 有权
公开(公告)号：US20070183636A1
公开(公告)日：2007-08-09
申请号：US11596560
申请日：2005-05-11
申请人： Cedric Cardonnel , Eric Brier , David Naccache , Jean-Sebastien Coron
发明人： Cedric Cardonnel , Eric Brier , David Naccache , Jean-Sebastien Coron
IPC分类号： G06K9/00
CPC分类号： G07C9/00087
摘要： 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+1 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 )

5. 发明授权

US07433501B2 Biometric identification method and device adapted to verification on chip cards 有权
标题翻译：适用于芯片卡验证的生物识别方法和装置
公开(公告)号：US07433501B2
公开(公告)日：2008-10-07
申请号：US10859978
申请日：2004-06-04
申请人： David Naccache , Claude Barral , Jean-Sebastien Coron , Cédric Cardonnel
发明人： David Naccache , Claude Barral , Jean-Sebastien Coron , Cédric Cardonnel
IPC分类号： G06K9/00
CPC分类号： G06K9/00087
摘要： A method and associated device for checking a biometric signature by a simple and secure calculation adapted to personal objects of the chip card type. The method is based on the storage within the object of an obscured biometric signature and an associated authentication code. A terminal capturing a fingerprint compares the fingerprint data with the obscured biometric signature transmitted by the card and transfers the result of this comparison to the chip card, which validates this result with the authentication code.
摘要翻译：一种用于通过适合于芯片卡类型的个人对象的简单和安全计算来检查生物特征签名的方法和相关设备。该方法基于被遮蔽的生物特征签名的对象内的存储和相关联的认证码。捕获指纹的终端将指纹数据与由卡发送的隐蔽的生物特征签名进行比较，并将该比较的结果传送到芯片卡，该验证码将验证该结果。

6. 发明授权

US07146006B1 Method for improving a random number generator to make it more resistant against attacks by current measuring 失效
标题翻译：改进随机数发生器的方法，使其更能抵抗电流测量的攻击
公开(公告)号：US07146006B1
公开(公告)日：2006-12-05
申请号：US10031065
申请日：2000-07-12
申请人： Jean-Sebastien Coron , David Naccache
发明人： Jean-Sebastien Coron , David Naccache
IPC分类号： H04K1/00 , H04L9/28 , G06F11/30
CPC分类号： H04L9/0625 , G06F7/58 , G06F2207/7223 , G06K19/07363 , G06Q20/341 , G07F7/084 , G07F7/1008 , H04L9/003 , H04L2209/08
摘要： Two methods for random number generation are modified to make them more resistant to attacks by current measurements. The methods are particularly designed to be implemented in electronic devices such as smart cards, PCMCIA, badges, contactless cards or any other portable device. The DES algorithm is encrypted using a key K having a value D representing date information, to generate an integer variable I. For j ranging from 1 to m, the following steps are carried out: substituting s with s XOR I; introducing in the integer variable y the result of the encryption of s with the DES algorithm using the key K; introducing in xj the result of y or s; substituting s with y XOR I; and introducing in s the result of the encryption of s with the DES algorithm using the key K. The sequence (x1, x2, xm) is then restored in the output.
摘要翻译：修改随机数生成的两种方法，使其更能抵抗目前测量的攻击。这些方法特别设计用于在诸如智能卡，PCMCIA，徽章，非接触式卡或任何其它便携式设备的电子设备中实现。使用具有代表日期信息的值D的密钥K来加密DES算法，以生成整数变量I.对于从1到m的j，执行以下步骤：用s XOR I代替s; 在整数变量y中引入使用密钥K的DES算法对s进行加密的结果; 在x或j中引入y或s的结果; 用y XOR I代替s; 并且使用密钥K使用DES算法在s中引入s的加密结果。序列（x 1，x 2，x m， SUB>）然后在输出中恢复。

7. 发明授权

US08971526B2 Method of counter-measuring against side-channel attacks 有权
标题翻译：反向侧向通道攻击的方法
公开(公告)号：US08971526B2
公开(公告)日：2015-03-03
申请号：US13547098
申请日：2012-07-12
申请人： Jean-Sebastien Coron
发明人： Jean-Sebastien Coron
IPC分类号： G06F21/00 , H04L9/00 , H04L9/06
CPC分类号： H04L9/003 , H04L9/0631 , H04L2209/046 , H04L2209/08
摘要： According to the present invention there is provided a method of counter-measuring against side channel attacks, the method comprising executing a block-cipher algorithm to mask intermediate variables, wherein the block-cipher algorithm comprises one or more non-linear functions, characterized in that at least one of the non-linear functions is implemented using a match-in-place function.
摘要翻译：根据本发明，提供了一种针对侧信道攻击进行反向测量的方法，所述方法包括执行块密码算法来掩蔽中间变量，其中所述块密码算法包括一个或多个非线性函数，其特征在于非线性函数中的至少一个是使用就地对位函数来实现的。

8. 发明授权

US07218735B2 Cryptography method on elliptic curves 失效
标题翻译：椭圆曲线上的加密方法
公开(公告)号：US07218735B2
公开(公告)日：2007-05-15
申请号：US10257129
申请日：2001-04-18
申请人： Jean-Sebastien Coron , Christophe Tymen
发明人： Jean-Sebastien Coron , Christophe Tymen
IPC分类号： H04K1/00 , H04L9/00
CPC分类号： H04L9/3066 , G06F7/725 , H04L9/0841 , H04L9/3252 , H04L2209/08
摘要： A cryptography method for generating probabilistic digital signatures and/or for a key-exchange a protocol and/or for an encryption algorithm is based on the use of a public key algorithm on abnormal binary elliptic curve, such as a Koblitz curve. A point P (x, y) is selected, and pairs (ki, Pi) are stored with Pi being the point corresponding to the scalar multiplication of the point P by ki. A random variable (k) is generated and a point C is calculated that corresponds to the scalar multiplication of P by k. The generation of the random variable (k) and the calculation of the point C are performed simultaneously.
摘要翻译：用于产生概率数字签名和/或用于密钥交换协议和/或用于加密算法的加密方法是基于在诸如Koblitz曲线的异常二进制椭圆曲线上使用公钥算法。选择点P（x，y），并且存储对（k i，i，P i i i i），其中P i是对应的点到点P乘以k的标量乘法。产生一个随机变量（k），并且计算一个对应于P乘以k的标量乘法的点C. 同时执行随机变量（k）的产生和点C的计算。

9. 发明授权

US07471791B1 Method for countermeasure in an electronic component using a secret key algorithm 有权
标题翻译：使用秘密密钥算法的电子部件中的对策方法
公开(公告)号：US07471791B1
公开(公告)日：2008-12-30
申请号：US09913884
申请日：2000-01-20
申请人： Jean-Sebastien Coron , Nathalie Feyt , Olivier Benoit
发明人： Jean-Sebastien Coron , Nathalie Feyt , Olivier Benoit
IPC分类号： H04L9/06 , H04K1/02 , H04L9/28
CPC分类号： H04L9/0625 , G06F21/755 , G06F2207/7219 , H04L9/003 , H04L2209/08
摘要： A countermeasure method in an electronic component using a secret key algorithm K on an input message M executes an operation OPN(D) on input data D. A random value, of one first random information U, is generated that is of identical size as the input information D. A second random information V, is calculated by performing an exclusive OR operation between the input information and the first random information U. The operation OPN or the sequence of operations are successively executed on the first input information U and to the second random information V, supplying respectively a first random result OPN(U) and a second random result OPN(V).
摘要翻译：在输入消息M中使用秘密密钥算法K的电子部件中的对策方法对输入数据D执行操作OPN（D）。生成与第一随机信息U相同大小的随机值输入信息D.通过执行输入信息和第一随机信息U之间的异或运算来计算第二随机信息V.操作OPN或操作序列依次对第一输入信息U和第二输入信息随机信息V分别提供第一随机结果OPN（U）和第二随机结果OPN（V）。

10. 发明申请

US20120082307A1 CRYPTOGRAPHY ON A ELLIPTICAL CURVE 有权
标题翻译：椭圆曲线的曲线图
公开(公告)号：US20120082307A1
公开(公告)日：2012-04-05
申请号：US13377404
申请日：2010-06-15
申请人： Thomas Icart , Jean-Sebastien Coron
发明人： Thomas Icart , Jean-Sebastien Coron
IPC分类号： H04L9/28
CPC分类号： G06F7/725 , G06F2207/7261 , H04L9/3066
摘要： A cryptographic calculation includes obtaining a point P(X,Y) from a parameter t on an elliptical curve Y2=f(X); and from polynomials X1(t), X2(t), X3(t) and U(t) satisfying: f(X1(t)).f(X2(t)).f(X3(t))=U(t)2 in Fq, with q=3 mod 4. Firstly a value of the parameter t is obtained. Next, the point P is determined by: (i) calculating X1=X1(t), X2=X2(t), X3=X3(t) and U=U(t); (ii) if the term f(X1)·f(X2) is a square, then testing whether the term f(X3) is a square in Fq and if so calculating the square root of f(X3) in order to obtain the point P(X3); (iii) otherwise, testing whether the term f(X1) is a square and, if so, calculating the square root of f(X1) in order to obtain the point P(X1); (iv) otherwise, calculating the square root of f(X2) in order to obtain the point P(X2). This point P is useful in a cryptographic application.
摘要翻译：密码计算包括从椭圆曲线Y2 = f（X）上的参数t获得点P（X，Y）; 和（x（t））f（X3（t））= U（t（x） t）2，其中q = 3 mod 4.首先获得参数t的值。接下来，通过以下方式确定点P：（i）计算X1 = X1（t），X2 = X2（t），X3 = X3（t）和U = U（t）; （ii）如果术语f（X1）·f（X2）是一个平方，则测试f（X3）是否是Fq中的平方，如果是，则计算f（X3）的平方根，以获得点P（X3）; （iii）否则，测试术语f（X1）是否为平方，如果是，则计算f（X1）的平方根以获得点P（X1）; （iv）否则，计算f（X2）的平方根，以获得点P（X2）。这一点P在加密应用程序中很有用。

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