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公开(公告)号：US20100325320A1
公开(公告)日：2010-12-23
申请号：US12743684
申请日：2008-10-18
Applicant: Fabrice Romain , Jean-Louis Modave
Inventor： Fabrice Romain , Jean-Louis Modave
CPC classification number: G06F21/606 , G06F21/755
Abstract: A method and a circuit for checking data transferred between a circuit and a processing unit, in which: the data originating from the circuit transit through a first buffer element having a size which is a multiple of the size of data to be subsequently delivered over a bus of the processing unit; an address provided by the processing unit for the circuit is temporarily stored in a second element; and the content of the first element is compared with current data originating from the circuit, at least when they correspond to an address of data already present in this first element.
Abstract translation: 一种用于检查在电路和处理单元之间传送的数据的方法和电路，其中：从电路发出的数据通过第一缓冲元件，该第一缓冲元件的尺寸是要随后传送的数据的大小的倍数 总线处理单元; 由电路处理单元提供的地址暂时存储在第二元件中; 并且将第一元素的内容与来自电路的当前数据进行比较，至少当它们对应于已经存在于该第一元素中的数据的地址时。
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2.发明授权Method for providing security to a chaining of operations performed by an electronic circuit within the context of executing an algorithm 有权在执行算法的上下文中为由电子电路执行的操作的链接提供安全性的方法公开(公告)号：US07188259B1
公开(公告)日：2007-03-06
申请号：US09914172
申请日：2000-02-25
Applicant: Fabrice Romain
Inventor： Fabrice Romain
CPC classification number: H04L9/003 , G06F21/755 , G06F21/85 , G06F2207/7219 , G06F2211/007 , G06F2221/2123 , H04L2209/08
Abstract: A method for providing security to a chaining of useful operations of the same type, performed by an electronic circuit executing an algorithm, randomly introduces one or more dummy operations in the chaining of operations. This prevents any fraudulent access to protected data through a statistical analysis of electrical currents.
Abstract translation: 为执行算法的电子电路执行的相同类型的有用操作的链接提供安全性的方法在操作的链接中随机引入一个或多个虚拟操作。 这可以通过电流的统计分析来防止对受保护数据的任何欺诈性访问。
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3.发明授权Circuit and method for the securing of a coprocessor dedicated to cryptography 有权用于保护专用于密码学的协处理器的电路和方法公开(公告)号：US06971020B1
公开(公告)日：2005-11-29
申请号：US09506158
申请日：2000-02-17
Applicant: Pierre-Yvan Liardet , Fabrice Romain , Bernard Plessier , Brigitte Hennebois
Inventor： Pierre-Yvan Liardet , Fabrice Romain , Bernard Plessier , Brigitte Hennebois
CPC classification number: H04L9/06 , H04L9/0894 , H04L2209/12
Abstract: A circuit and a method are provided for securing a coprocessor dedicated to cryptography. The disclosed circuit includes a scrambling register and an accessory input register to convey scrambling information in the form of electrical signals that disturb the visibility of certain electrical signals associated with confidential information such as digital keys.
Abstract translation: 提供了一种用于保护专用于密码学的协处理器的电路和方法。 所公开的电路包括加扰寄存器和附件输入寄存器，以电信号的形式传送加扰信息，该电信号干扰与机密信息（例如数字密钥）相关联的某些电信号的可视性。
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公开(公告)号：US08195946B2
公开(公告)日：2012-06-05
申请号：US11402307
申请日：2006-04-11
Applicant: Fabrice Romain , Alain Pomet
Inventor： Fabrice Romain , Alain Pomet
Abstract: A method and a circuit for checking the coherence between data read from a first area of a memory of a microcontroller and the address of these data, including calculating a current digital signature of the read data by a function also taking into account the address of these data in the memory, and checking the coherence between the current signature and a previously-recorded signature.
Abstract translation: 一种用于检查从微控制器的存储器的第一区域读取的数据与这些数据的地址之间的相干性的方法和电路，包括通过功能计算读取数据的当前数字签名，同时考虑到这些数据的地址 存储器中的数据，以及检查当前签名与之前记录的签名之间的一致性。
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公开(公告)号：US07536564B2
公开(公告)日：2009-05-19
申请号：US10476359
申请日：2002-04-29
Applicant: Pierre-Yvan Liardet , Fabrice Romain
Inventor： Pierre-Yvan Liardet , Fabrice Romain
IPC: H04L21/00
CPC classification number: G06F7/72 , G06F21/755 , G06F2207/7247
Abstract: The invention concerns a method for encrypting, with a random quantity (r), a calculation using at least a modular operation (3), the method consisting in multiplying a first modulo (n) by said random quantity, in taking as modulo of the operation, the result (m) of said multiplication and in carrying out a modular reduction of the result of the operation, on the basis of the first modulo (n).
Abstract translation: 本发明涉及一种使用至少模块化操作（3）以随机数（r）加密计算的方法，所述方法包括将第一模（n）乘以所述随机数，以模数 操作，所述乘法的结果（m）和基于第一模（n）执行操作结果的模块化减少。
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Patent Agency Ranking
6.发明授权Secure method for secret key cryptographic calculation and component using said method 有权秘密密钥加密计算的安全方法和使用所述方法的组件公开(公告)号：US07400723B2
公开(公告)日：2008-07-15
申请号：US10467572
申请日：2002-02-06
Applicant: Fabrice Romain , Yannick Teglia
Inventor： Fabrice Romain , Yannick Teglia
IPC: H04K1/00
CPC classification number: H04L9/0625 , G06F2207/7219 , H04L9/003 , H04L2209/046 , H04L2209/08 , H04L2209/24
Abstract: A secured method of cryptographic computation to generate output data from input data and from a secret key includes a derived key scheduling step to provide a derived key from the secret key according to a known key scheduling operation. The method also includes a masking step, performed before the derived key scheduling step, to mask the secret key so that the derived scheduled key is different at each implementation of the method. The present method and component can be used in transfer type applications, such as bank type applications.
Abstract translation: 一种用于从输入数据和秘密密钥生成输出数据的密码计算的安全方法包括：派生密钥调度步骤，用于根据已知密钥调度操作，从秘密密钥提供派生密钥。 该方法还包括在导出密钥调度步骤之前执行的掩蔽步骤，以掩蔽该秘密密钥，使得在该方法的每个实现方式上导出的调度密钥不同。 本方法和组件可用于转移类型应用，如银行类型应用。
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公开(公告)号：US20070174622A1
公开(公告)日：2007-07-26
申请号：US11402307
申请日：2006-04-11
Applicant: Fabrice Romain , Alain Pomet
Inventor： Fabrice Romain , Alain Pomet
IPC: G11C29/00
Abstract: A method and a circuit for checking the coherence between data read from a first area of a memory of a microcontroller and the address of these data, including calculating a current digital signature of the read data by a function also taking into account the address of these data in the memory, and checking the coherence between the current signature and a previously-recorded signature.
Abstract translation: 一种用于检查从微控制器的存储器的第一区域读取的数据与这些数据的地址之间的相干性的方法和电路，包括通过功能计算读取数据的当前数字签名，同时考虑到这些数据的地址 存储器中的数据，以及检查当前签名与之前记录的签名之间的一致性。
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公开(公告)号：US09851703B2
公开(公告)日：2017-12-26
申请号：US13993609
申请日：2011-12-07
Applicant: Christophe Cataldo , Sophie Gabriele , Christophe Mani , Fabrice Romain
Inventor： Christophe Cataldo , Sophie Gabriele , Christophe Mani , Fabrice Romain
CPC classification number: G05B15/02 , G06K7/0008 , G06K19/0723 , G06Q20/3574
Abstract: A portable object includes an antenna and a processor coupled to the antenna. The processor is configured to communicate with an item of equipment according to a contactless communication protocol that contains an anticollision procedure. The processor is also configured to execute a plurality of software modules. The software modules include application modules and a triggering module, which is configured to cause a triggering of the anticollision procedure between the single portable object and the item of equipment. The processor is configured to cause a signal, which is generated by executing the triggering module, to be transmitted from the antenna to the time of equipment.
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9.发明授权Method of secure cryptographic calculation, in particular, against attacks of the DFA and unidirectional type, and corresponding component 有权安全加密计算的方法，特别是针对DFA和单向类型的攻击以及相应的组件公开(公告)号：US08958556B2
公开(公告)日：2015-02-17
申请号：US13441180
申请日：2012-04-06
Applicant: Pierre Yvan Liardet , Fabrice Romain
Inventor： Pierre Yvan Liardet , Fabrice Romain
IPC: H04L9/00
Abstract: A method of secure cryptographic calculation includes formulating a first list of first random quantities, formulating a first non-linear substitution operator masked with at least part of the first list, and formulating a second list determined from the first list. The second list includes second random quantities respectively determined from the first random quantities. A second non-linear substitution operator masked with at least part of the second list is formulated. At least two successive implementations of a cryptographic calculation algorithm are performed that includes N rounds of calculations carried out successively to obtain output data based on input data and of a secret key, with a data path of the cryptographic calculation algorithm being masked.
Abstract translation: 一种安全密码计算的方法包括：制定第一个随机数量的第一列表，制定用第一个列表的至少一部分屏蔽的第一个非线性替代运算符，以及制定从第一个列表确定的第二个列表。 第二列表包括从第一随机数量分别确定的第二随机数。 制定了具有至少部分第二列表的第二非线性替代运算符。 执行密码计算算法的至少两个连续实现，其包括连续执行的N次计算，以基于输入数据和秘密密钥获得输出数据，密码计算算法的数据路径被掩蔽。
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公开(公告)号：US08321691B2
公开(公告)日：2012-11-27
申请号：US11713887
申请日：2007-03-05
Applicant: Fabrice Romain
Inventor： Fabrice Romain
IPC: G06F21/00
CPC classification number: H04L9/005 , G06F7/723 , G06F7/725 , G06F2207/7223 , H04L9/003 , H04L2209/046
Abstract: A method for masking a digital quantity used by a calculation executed by an electronic circuit and including several iterations, each including at least one operation which is a function of at least one value depending on the digital quantity, the method including at least one first step of displacement of at least one operand of the operation in a storage element selected independently from the value.
Abstract translation: 一种用于屏蔽由电子电路执行的计算所使用的数字量的方法，包括几次迭代，每个迭代包括至少一个与数字量有关的至少一个值的函数，该方法包括至少一个第一步骤 在与该值独立地选择的存储元件中的操作的至少一个操作数的位移。
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