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1. 发明申请

WO2019115520A1 DYNAMIC MASKING 审中-公开
公开(公告)号：WO2019115520A1
公开(公告)日：2019-06-20
申请号：PCT/EP2018/084351
申请日：2018-12-11
申请人： SECURE-IC SAS
发明人： LOZAC'H, Florent , GUILLEY, Sylvain
IPC分类号： H04L9/06 , H04L9/00
CPC分类号： H04L9/0618 , G06F21/755 , H04L9/003 , H04L2209/04
摘要： There is disclosed a circuit comprising a cipher accessing a plurality of read-write memory units configured to handle data tables obtained from a modified mask; wherein the modified mask is being determined from an initial mask and a random value, the random value selecting one or more modifications of the initial mask amongst a plurality of predefined modifications including permutation operations. Developments of the invention describe the use of mathematically optimal or equivalent masks; the use of random values; a range of permutation operations comprising offset shifting and/or rotation and/or XOR operations and/or coprime construction; the use of round masks; the use of a Physically Unclonable Function; the refresh or update of modified masks and/or round masks; and verifications of the optimality and/or integrity of masks. System features (e.g. CPU, co-processor, local and/or remotely accessed external memory storing masks, volatile memory) and computer program products are described.

2. 发明申请

WO2020058050A1 METHODS AND DEVICES FOR SECURE SECRET KEY GENERATION 审中-公开
公开(公告)号：WO2020058050A1
公开(公告)日：2020-03-26
申请号：PCT/EP2019/074174
申请日：2019-09-11
申请人： SECURE-IC SAS
发明人： SOUISSI, Youssef , LOZAC'H, Florent , FACON, Adrien , GUILLEY, Sylvain
IPC分类号： H04L9/08 , G11C29/12 , G01R31/3187 , G06F11/27
摘要： There is provided a cryptographic key determination device (13) for determining one or more cryptographic keys in a cryptographic device (1), the cryptographic device (1) being configured to execute one or more test programs, the cryptographic device (1) comprising one or more components (11-i), each component (11-i) being configured to generate static and dynamic data, the dynamic data being generated in response to the execution of the one or more test programs, wherein the cryptographic key determination device (13) comprises: - a data extraction unit (131) configured to extract at least one part of the static data and at least one part of the dynamic data generated by the one or more components (11-i), and - a key generator (132) configured to combine the at least one part of static data and the at least one part of dynamic data, and to determine the one or more cryptographic keys by applying a cryptographic function to the combined data.

3. 发明申请

WO2019243299A1 IMPROVED DETECTION OF LASER FAULT INJECTION ATTACKS ON CRYPTOGRAPHIC DEVICES 审中-公开
公开(公告)号：WO2019243299A1
公开(公告)日：2019-12-26
申请号：PCT/EP2019/065955
申请日：2019-06-18
申请人： SECURE-IC SAS
发明人： GUILLEY, Sylvain , LE ROLLAND, Michel
IPC分类号： G06F21/75 , G06F21/77
摘要： The invention relates to countermeasures against fault injection attacks of a cryptographic integrated circuit, and more specifically laser fault injection attacks. The invention consists in generating sequences of bits belonging to a set of allowed sequences, and storing these sequences on a set of Flip-Flops. Then the sequences stored on the Flip-Flops are checked and, if they do not belong to the allowed sequence, this is the sign that a fault injection attack occurred and caused a bit flip in one of the flip-flops. An alarm signal is then generated.

4. 发明申请

WO2019129439A1 QUANTITATIVE DIGITAL SENSOR 审中-公开
公开(公告)号：WO2019129439A1
公开(公告)日：2019-07-04
申请号：PCT/EP2018/082062
申请日：2018-11-21
申请人： SECURE-IC SAS
发明人： GUILLEY, Sylvain , FACON, Adrien , BRUNEAU, Nicolas
IPC分类号： H04L9/00 , G06F21/75 , G06F21/55 , H01L23/00 , G01R31/28 , G01R31/317 , H03K19/003
CPC分类号： H04L9/004 , G01R31/31719 , G06F21/55 , G06F21/75 , G06F2207/7219 , G06F2207/7271 , H01L23/576 , H03K19/003 , H04L2209/12
摘要： There is provided a device of protecting an Integrated Circuit from perturbation attacks. The device comprises a sensing unit (30) configured to detect a perturbation attack, the sensing unit comprising a set of digital sensors comprising at least two sensors, the sensors being arranged in parallel. Each digital sensor provides a digitized bit output having a binary value, in response to input data, the sensing unit being configured to deliver at least one binary vector comprising a multi-bit value, the multi-bit value comprising at least two bit outputs provided by the set of digital sensors. The sensing device (3) further comprising an analysis unit (31), the analysis unit being configured to receive at least one binary vector provided by the sensing unit (30), the analysis unit being configured to detect a perturbation attack from the at least one binary vector.

5. 发明申请

WO2017001650A1 EMBEDDED TEST CIRCUIT FOR PHYSICALLY UNCLONABLE FUNCTION 审中-公开
标题翻译：用于物理不可靠功能的嵌入式测试电路
公开(公告)号：WO2017001650A1
公开(公告)日：2017-01-05
申请号：PCT/EP2016/065479
申请日：2016-07-01
申请人： SECURE-IC SAS
发明人： DAFALI, Rachid , DANGER, Jean-Luc , GUILLEY, Sylvain , LOZAC'H, Florent
IPC分类号： H04L9/32 , H04L9/08 , G09C1/00
CPC分类号： H04L9/3278 , G09C1/00 , H04L9/0866 , H04L2209/12 , H04L2209/26
摘要： There is disclosed a silicon integrated circuit comprising a Physically Unclonable Function and an online or embedded test circuit, said online test circuit comprising one or more circuit parts being physically adjacent to said PUF and said one or more circuits embodying one or more tests which can be performed to determine one or more quality properties of said PUF or otherwise characterize it. Different tests with specific associated method steps are described.
摘要翻译：公开了一种包括物理不可克隆功能和在线或嵌入式测试电路的硅集成电路，所述在线测试电路包括与所述PUF物理相邻的一个或多个电路部分，以及体现一个或多个测试的一个或多个电路，执行以确定所述PUF的一个或多个质量属性或以其它方式表征。描述具体相关方法步骤的不同测试。

6. 发明申请

WO2016020267A1 CIRCUIT PROTECTION SYSTEM AND METHOD 审中-公开
标题翻译：电路保护系统和方法
公开(公告)号：WO2016020267A1
公开(公告)日：2016-02-11
申请号：PCT/EP2015/067560
申请日：2015-07-30
申请人： SECURE-IC SAS
发明人： GUILLEY, Sylvain , PORTEBOEUF, Thibault , DANGER, Jean-Luc
IPC分类号： G09C1/00 , H04L9/00
CPC分类号： G06F21/71 , G09C1/00 , H04L9/002 , H04L2209/046 , H04L2209/12
摘要： The invention proposes a method of protection of a Boolean circuit associated with a structural description of the circuit comprising elementary Boolean variables, each represented by one bit, the method comprising the steps consisting in: - selecting a set of k elementary Boolean variables of the circuit as a function of predefined selection criteria, - constructing a variable x represented by k bits by concatenation of the k selected variables in accordance with a chosen order, - determining a binary code C comprising a set of code words and belonging to a given vector space and the supplementary code D of said binary code C as a function of a condition bearing on the dual distance of said supplementary code D , said binary code C having a length n and a size 2 k , where k designates the number of bits representing said variable x ; - substituting the variable x in the structural description of the Boolean circuit with a protected variable z represented by n bits so that: - any operation of writing on the variable x in the circuit is substituted with an operation of writing on the variable z , the variable z being generated by adding the variable x encoded by said code C to a random bit vector y encoded by the supplementary code D , and - any operation of reading the variable x in the circuit is substituted with an operation of reading the value of the protected variable z and an operation of decoding said read value of the protected variable z using a decoding matrix J of size ( n x k ) determined from the binary code C and the supplementary code D of the binary code C .
摘要翻译：本发明提出了一种保护布尔电路的方法，该布尔电路与包括基本布尔变量的电路的结构描述相关联，每个基本布尔变量由一个位表示，该方法包括以下步骤： - 选择电路的一组k个基本布尔变量作为预定义选择标准的函数， - 根据所选择的顺序，通过连接k个所选变量来构造由k个比特表示的变量x， - 确定包含一组码字并属于给定向量空间的二进制码C 以及所述二进制码C的补码D作为与所述辅助码D的双距离有关的条件的函数，所述二进制码C具有长度n和大小2k，其中k表示表示所述补码变量x - 用布尔电路的结构描述中的变量x替换由n位表示的保护变量z，使得： - 对电路中的变量x进行写入的任何操作都被写入变量z的操作代替，通过将由所述代码C编码的变量x添加到由补充代码D编码的随机位矢量y来生成变量z，并且读取电路中的变量x的任何操作都被读取保护变量z和使用从二进制码C的二进制码C和补充码D确定的大小（nxk）的解码矩阵J来解码受保护变量z的所述读取值的操作。

7. 发明申请

WO2018115068A1 SYNTHETIC PHYSICALLY UNCLONABLE FUNCTION 审中-公开
公开(公告)号：WO2018115068A1
公开(公告)日：2018-06-28
申请号：PCT/EP2017/083723
申请日：2017-12-20
申请人： SECURE-IC SAS
发明人： NGUYEN, Philippe , NGUYEN, Robert , SOUISSI, Youssef , GUILLEY, Sylvain , DANGER, Jean-Luc , FACON, Adrien
IPC分类号： G09C1/00 , G01P15/13
摘要： There is disclosed a circuit for a Synthetic Physically Unclonable Function, acronym SPUF, in a computer device, wherein the circuit is configured to receive data from a plurality of hardware sensors and/or actuators accessible in said computer device; to determine deviations in said data; to determine a multivariate distribution of said deviations and to determine an identifier from said multivariate distribution. In described developments, deviations comprise random errors, statistical moments in data originating from sensors and/or actuators amongst accessible ones in the computer device can be selected, and entropy can be maximized. Computer program product embodiments are described.

8. 发明申请

WO2015197853A1 DEVICE AND METHOD FOR CALIBRATING A DIGITAL SENSOR 审中-公开
标题翻译：用于校准数字传感器的装置和方法
公开(公告)号：WO2015197853A1
公开(公告)日：2015-12-30
申请号：PCT/EP2015/064599
申请日：2015-06-26
申请人： SECURE-IC SAS
发明人： GUILLEY, Sylvain , PORTEBOEUF, Thibault
IPC分类号： G01R31/3193 , G01R31/30
CPC分类号： G01D18/00 , G01R31/3016
摘要： There is provided a calibration device for calibrating a digital sensor (3), said digital sensor being configured to protect a target digital circuit (30) fed by a clock signal having a clock period by triggering an alarm depending on a condition between said clock signal and an optimal alarm threshold, said optimal alarm threshold being determined by minimizing a quantity depending on the probability of occurrence of false positives and on the probability of occurrence of false negatives.
摘要翻译：提供了一种用于校准数字传感器（3）的校准装置，所述数字传感器被配置为通过根据所述时钟信号之间的条件触发报警来保护由具有时钟周期的时钟信号馈送的目标数字电路（30）和最佳报警阈值，所述最佳报警阈值是通过根据误报的发生概率和假阴性的发生概率使数量最小化来确定的。

9. 发明申请

WO2015121324A1 PROCÉDÉ DE CONTREMESURE POUR UN COMPOSANT ÉLECTRONIQUE METTANT EN OEUVRE UN ALGORITHME DE CRYPTOGRAPHIE SUR UNE COURBE ELLIPTIQUE 审中-公开
标题翻译：电子元件实现非线性曲线重构算法的计量法
公开(公告)号：WO2015121324A1
公开(公告)日：2015-08-20
申请号：PCT/EP2015/052908
申请日：2015-02-12
申请人： SECURE-IC SAS
发明人： MURDICA, Cédric , GUILLEY, Sylvain
IPC分类号： H04L9/00
CPC分类号： H04L9/003 , H04L9/3066 , H04L2209/04 , H04L2209/08
摘要： L'invention a pour objet un procédé de contremesure pour un composant électronique mettant en œuvre un algorithme de cryptographie à clé publique sur une courbe elliptique E définie sur un corps K et comprenant une opération itérative de multiplication scalaire permettant d'obtenir un point [ k ] P à partir d'un point P de la courbe E et d'un entier k devant rester secret, la consommation électrique du composant électronique dépendant de la valeur prise par au moins un point dit critique utilisé lors de ladite opération pour déterminer itérativement le point [ k ] P . Le procédé comprend : une étape de fourniture (500) d'au moins une puissance d'un élément c de K prédéfini constant non nul et différent de un; une étape d'initialisation (501) des coordonnées du au moins un point critique à une valeur prédéfinie; une étape mettant en œuvre l'opération de multiplication scalaire (502), les coordonnées associées à au moins un point critique étant modifiées à chaque itération en multipliant au moins une des coordonnées de ce point par la au moins une puissance de l'élément c obtenu à l'étape de fourniture (500).
摘要翻译：本发明的主题是实现公共密钥椭圆曲线加密算法的电子部件的对策方法，椭圆曲线E在身体K上定义，所述方法包括迭代标量乘法运算，允许点[k] P 要从曲线E上的点P和必须保密的整数k获得，电子部件的电功率消耗取决于所说的至少一个点被认为是至关重要的用于迭代确定点[k] P的操作。该方法包括：步骤（500），其提供K的元素c的至少一个能量，该元素被预设为常数，非零和不同于一个; 将至少一个临界点的坐标初始化（501）到预设值的步骤; 以及实现标量乘法（502）的操作的步骤，通过将该点的坐标中的至少一个乘以所获得的元素c的至少一个幂来与在每次迭代中修改的至少一个临界点相关联的坐标在提供步骤（500）中。

10. 发明申请

WO2020115266A1 METHODS AND DEVICES FOR SECURED IDENTITY-BASED ENCRYPTION SYSTEMS WITH TWO TRUSTED CENTERS 审中-公开
公开(公告)号：WO2020115266A1
公开(公告)日：2020-06-11
申请号：PCT/EP2019/083944
申请日：2019-12-06
申请人： SECURE-IC SAS
发明人： DUGARDIN, Margaux , FACON, Adrien , GUILLEY, Sylvain
IPC分类号： H04L9/08 , H04L9/30 , H04L9/32
摘要： A transmitter device (103) for sending an encrypted message to a receiver device (105) in an identity-based cryptosystem (100), the identity-based cryptosystem (100) comprising a transmitter trusted center (101) connected to the transmitter device (103) and a receiver trusted center (102) connected to the receiver device (105). The transmitter device (103) is configured to: - receive, from the transmitter trusted center (101), two public authentication keys; - check if a set of conditions related to a transmitter trusted center public key, to a receiver trusted center public key, and to a transmitter authentication key comprised in the two public authentication keys are satisfied; - determine a ciphertext set comprising an encrypted message if the set of conditions are satisfied; - send the ciphertext set to the receiver device (105).

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