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公开(公告)号：US07526648B2
公开(公告)日：2009-04-28
申请号：US10472993
申请日：2002-06-07
Applicant: David Arditti , Jacques Burger , Henri Gilbert , Marc Girault , Jean-Claude Pailles
Inventor： David Arditti , Jacques Burger , Henri Gilbert , Marc Girault , Jean-Claude Pailles
CPC classification number: G07F7/1008 , G06Q20/341 , G06Q20/40975 , G09C1/00 , H04L9/3263 , H04L2209/56
Abstract: The present invention relates to a cryptographic method of protecting an electronic chip against fraud and a device including an electronic chip which is adapted to protect the electronic chip against fraud. The method includes: mixing some or all of the input parameters (Em) to supply an output data item E′=(e′1, e′2, . . . , e′n, . . . , e′N), changing the state of a finite state automaton from an old state to a new state as a function of the data item E′=(e′1, e′2, . . . , e′n, . . . , e′N), and calculating a certificate (S) by means of an output function having at least one state of the automaton as an input argument. The device includes: mixing means, a finite state automaton, and output means for calculating a certificate (S).
Abstract translation: 本发明涉及一种保护电子芯片免受欺诈的密码方法和一种包括适用于保护电子芯片免受欺诈的电子芯片的设备。 该方法包括：混合部分或全部输入参数（Em）以提供输出数据项E'=（e'1，e'2，...，e'n，...，e'N） 将有限状态自动机的状态从旧状态改变为新状态，作为数据项E'=（e'1，e'2，...，e'n，...，e'N的函数） ），并且通过具有自动机的至少一个状态的输出函数作为输入参数来计算证书（S）。 该装置包括：混合装置，有限状态自动机和用于计算证书（S）的输出装置。
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公开(公告)号：US07401226B2
公开(公告)日：2008-07-15
申请号：US10492894
申请日：2002-10-24
Applicant: Marc Girault , Jean-Francois Misarsky , Patrick Dehornoy , Herve Sibert
Inventor： Marc Girault , Jean-Francois Misarsky , Patrick Dehornoy , Herve Sibert
IPC: H04L9/00
CPC classification number: H04L9/3066 , H04L9/3221
Abstract: A public key cryptographic method based on groups of braids. The method employs a secret key defined by a representative s of a given braid S in a braid group G, a public key defined by a representative v of the braid T(S) converted from the braid S by an operator T, and an operation of verifying the equality of two braids, i.e. the equivalence of representatives of the two braids.
Abstract translation: 基于辫子组的公钥加密方法。 该方法使用由编织组G中的给定编织物S的代表定义的秘密密钥，由由操作者T从编织物S转换的编织物T（S）的代表性v定义的公钥，以及操作 验证两个辫子的平等，即两个辫子代表的等同性。
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公开(公告)号：US20070260882A1
公开(公告)日：2007-11-08
申请号：US11667031
申请日：2005-10-21
Applicant: David Lefranc , Marc Girault
Inventor： David Lefranc , Marc Girault
IPC: H04L9/00
CPC classification number: G06Q20/383 , H04L9/3073 , H04L2209/56 , H04L2209/80
Abstract: A technique for secure delegation of calculation of a value f(X,Y) of a bilinear application in a computational server. The technique comprises: selection of two secret parameters a and b; calculation of the numbers Xa and Yb; supply of the two numbers Xa and Yb to the computational server; calculation of f(Xa,Yb) by said server; receipt of the value of f(Xa,Yb) from the server; extraction of the abth root of f(Xa,Yb).
Abstract translation: 一种用于在计算服务器中安全地委派计算双线性应用的值f（X，Y）的技术。 该技术包括：选择两个秘密参数a和b; 数字X＆lt; a＆gt;和＆lt; b＆gt;的计算; 向计算服务器提供两个数字X a和/或SUP> b ; 由所述服务器计算f（X a ，Y ）; 从服务器接收f（X a ，Y ）的值; 提取f（X ， B）的ab 根。
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24.发明授权Authentication and signature method for messages using reduced size of binary units of information content and corresponding systems 有权使用信息内容和对应系统的二进制单位缩小的消息的认证和签名方法公开(公告)号：US07228418B1
公开(公告)日：2007-06-05
申请号：US09937786
申请日：2000-04-07
Applicant: Marc Girault
Inventor： Marc Girault
CPC classification number: H04L9/3247 , H04L9/3218
Abstract: The present invention relates to an authentication method using small-sized commitments and systems thereof.According to the invention the size of the commitment is reduced but the time the entity to be authenticated takes to respond to the authenticating entity is checked and said time is required to be lower than a certain value. The security level is maintained.Application to methods of authentication (of entities or messages) or message signature.
Abstract translation: 本发明涉及使用小规模承诺的认证方法及其系统。 根据本发明，承诺的大小被减少，但是被认证的实体对认证实体做出响应的时间被检查，并且所述时间要求低于特定值。 维护安全级别。 应用于认证方法（实体或消息）或消息签名。
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公开(公告)号：US20050169461A1
公开(公告)日：2005-08-04
申请号：US10500792
申请日：2002-12-13
Applicant: Sebastien Canard , Marc Girault , Jacques Traore
Inventor： Sebastien Canard , Marc Girault , Jacques Traore
CPC classification number: H04L9/3255
Abstract: A cryptographic method and apparatus for anonymously signing a message. Added to the anonymous signature is another signature which is calculated (operation 13) using a private key common to all the members of a group authorized to sign and unknown to all revoked members. The private key is updated (operations 8, 11) at group level on each revocation within the group and at member level only on anonymous signing of a message by the member.
Abstract translation: 用于匿名签名消息的密码方法和装置。 添加到匿名签名是另一个计算的签名（操作13），使用对所有被撤销的成员授权签名和未知的组的所有成员共同的私钥。 在组内每个撤销的组级别和成员级别的私有密钥被更新（操作8,11），只有成员匿名签名消息。
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Patent Agency Ranking
26.发明授权Secured access checking system enabling the automatic transfer of entitlement to produce keys 失效安全的访问检查系统，能够自动转移授权以产生密钥公开(公告)号：US06380843B1
公开(公告)日：2002-04-30
申请号：US09171212
申请日：1999-05-13
Applicant: Didier Guerin , Constant Hardy , Marc Girault , Marie-Josèphe Revillet
Inventor： Didier Guerin , Constant Hardy , Marc Girault , Marie-Josèphe Revillet
IPC: H04Q100
CPC classification number: G07F7/1008 , G06Q20/341 , G06Q20/4097 , G07C9/00015 , G07C9/00103
Abstract: A secured system of access checking using a portable storage carrier (C) on which there is recorded an electronic key (CL), a digital data processing instrument (LE) for the production of keys, and an electronic lock (L) function capable of authorizing access should the storage carrier have the requisite electronic key. To transfer an entitlement to produce keys (CL) from one production digital data processing instrument (LE) to another, it is loaded with a new public key (K′) and the signature (CER′) of this key.
Abstract translation: 使用其上记录有电子钥匙（CL）的便携式存储载体（C），用于产生钥匙的数字数据处理装置（LE）和用于产生钥匙的电子锁（L）功能的安全的访问检查系统， 如果存储载体具有必要的电子密钥，则授权访问。 为了从一个生产数字数据处理仪器（LE）向另一个生产数字数据处理仪器（LE）传送产生密钥（CL）的授权，它加载了一个新的公钥（K'）和该密钥的签名（CER'）。
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公开(公告)号：US6105862A
公开(公告)日：2000-08-22
申请号：US147213
申请日：1998-10-29
Applicant: Jean-Claude Pailles , Marc Girault , Patrick Remery
Inventor： Jean-Claude Pailles , Marc Girault , Patrick Remery
IPC: G09C1/00 , G06Q20/10 , G06Q20/34 , G06Q20/36 , G06Q20/40 , G07F7/08 , G07F7/10 , H04L9/32 , G06F17/00
CPC classification number: G07F7/1008 , G06Q20/10 , G06Q20/341 , G06Q20/3678 , G06Q20/4093 , G06Q20/40975 , G07F7/0826
Abstract: A method for performing electronic transactions between a card, a service provider having at least one terminal configured to accept the card and a centralized system configured to be connected to the terminal. The terminal transmits to the card a parameter M including the sum of the transaction and its identity. The card produces two signatures, a first signature (z) depending on a secret debit key (k) and on the parameter (M), this first signature being a proof that the card balance has been debited; and a second signature (y) depending on the first signature (z), the second signature being produced either by an RSA algorithm or by an interactive algorithm. The terminal checks the second signature (y) but not the first one because it is unable to recover the secret debit key (k). The terminal stores the different first signatures (proofs) (z) and the parameters (M) for the different transactions. The centralized system can collect the first signatures and the parameters. The centralized system can recover the secret debit key (k) based on the card identities and can credit the service provider.
Abstract translation: PCT No.PCT / FR97 / 00826 Sec。 371日期：1998年10月29日第 102（e）1998年10月29日PCT PCT 1997年5月7日PCT公布。 公开号WO97 / 42610 PCT 日期1997年11月13日一种用于在卡，具有被配置为接受卡的至少一个终端的服务提供商和被配置为连接到终端的集中式系统之间进行电子交易的方法。 终端向卡片发送包括交易和其身份的总和的参数M. 该卡产生两个签名，取决于秘密借记卡（k）和参数（M）的第一签名（z），该第一签名是卡余额已被借记的证据; 以及取决于第一签名（z）的第二签名（y），所述第二签名由RSA算法或通过交互算法产生。 终端检查第二个签名（y），但不检查第一个签名（y），因为它无法恢复秘密借记卡（k）。 终端存储不同事务的不同的第一签名（证明）（z）和参数（M）。 集中式系统可以收集第一个签名和参数。 集中式系统可以基于卡身份恢复秘密借记卡（k），并可以向服务提供商提供信用。
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28.发明授权System for the checking of limited access to authorized time slots renewable by means of a portable storage device 失效用于检查通过便携式存储装置可再生的授权时隙的有限访问的系统
公开(公告)号：US5768379A
公开(公告)日：1998-06-16
申请号：US619771
申请日：1996-03-07
Applicant: Marc Girault , Renaud Reitter , Marie-Josephe Revillet
Inventor： Marc Girault , Renaud Reitter , Marie-Josephe Revillet
IPC: A47G29/12 , A47G29/14 , G06F21/20 , G07C9/00 , G07F7/08 , G07F7/10 , G07F7/12 , G09C1/00 , H04L9/32 , H04L9/16
CPC classification number: G07F7/1008 , A47G29/1201 , A47G29/141 , G06Q20/341 , G06Q20/4097 , G06Q20/40975 , G07C9/00015 , G07C9/00023 , G07F7/08 , G07F7/082 , G07F7/1016 , G07F7/12
Abstract: The invention relates to systems for checking access limited to authorized time slots renewable by means of a portable storage device. The system comprises, for this purpose, an element (LE) producing electronic keys formed by a data element pertaining to a time slot and by the signature of this data element. These keys are loaded into devices such as memory cards (C). Electronic locks (L) capable of verifying the signatures are implanted in the different (physical or logical) locations, the access to which has to be guarded. Application to the checking of access to buildings or computer systems.
Abstract translation: PCT No.PCT / FR95 / 00935 Sec。 371日期：1996年3月7日 102（e）1996年3月7日PCT PCT 1995年7月11日PCT公布。 出版物WO96 / 02899 日期1996年2月1日本发明涉及通过便携式存储装置检查限制到可再生的授权时隙的访问系统。 为此，该系统包括产生由与时间有关的数据元素和该数据元素的签名形成的电子密钥的元素（LE）。 这些键被装载到诸如存储卡（C）的设备中。 能够验证签名的电子锁（L）被植入在不同（物理或逻辑）位置，必须保护其访问。 应用于检查建筑物或计算机系统的访问。
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29.发明授权Wired microcircuit card and a method for transactions between a corresponding wired microcircuit card and a terminal 失效有线微电路卡和相应的有线微电路卡与终端之间交易的方法
公开(公告)号：US5128997A
公开(公告)日：1992-07-07
申请号：US554122
申请日：1990-07-17
Applicant: Jean-Claude Pailles , Marc Girault
Inventor： Jean-Claude Pailles , Marc Girault
CPC classification number: G07F7/1008 , G06Q20/341 , G06Q20/357 , G06Q20/3672 , G06Q20/3676 , G06Q20/40975 , G07F7/082 , G07F7/0866
Abstract: The invention concerns a microcircuit card of the kind comprising:a communication interface;an internal memorypa wired processor unit allowing this internal memory to be addressed from the outside.According to the main characteristic of the invention, provision is made for a secret internal memory zone not addressable from the outside, and the processor unit comprises a wired circuit capable of using the contents of the secret memory for establishing a first serial cryptographic function of two operands and means reacting to the interrogation of predetermined addresses of the internal memory, accompanied by a keyword by applying this keyword and the output of the internal memory as operands of the wired circuit, whilst the output of the wired circuit is applied to the interface.
Abstract translation: 本发明涉及一种微电路卡，包括：通信接口; 内部存储器是有线处理器单元，允许从外部寻址该内部存储器。 根据本发明的主要特征，提供了一种不能从外部寻址的秘密内部存储区域，并且处理器单元包括能够使用秘密存储器的内容来建立第二串行密码功能的有线电路 通过将该关键字和内部存储器的输出作为有线电路的操作数，伴随着关键字的询问来响应内部存储器的预定地址的操作数和装置，同时将有线电路的输出应用于接口。
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公开(公告)号：US07991151B2
公开(公告)日：2011-08-02
申请号：US11667031
申请日：2005-10-21
Applicant: David Lefranc , Marc Girault
Inventor： David Lefranc , Marc Girault
IPC: H04L9/00
CPC classification number: G06Q20/383 , H04L9/3073 , H04L2209/56 , H04L2209/80
Abstract: A technique for secure delegation of calculation of a value f(X,Y) of a bilinear application in a computational server. The technique comprises selection of two secret parameters a and b; calculation of the numbers Xa and Yb; supply of the two numbers Xa and Yb to the computational server; calculation of f(Xa, Yb) by said server; receipt of the value of f(Xa,Yb) from the server; extraction of the abth root of f(Xa,Yb).
Abstract translation: 一种用于在计算服务器中安全地委派计算双线性应用的值f（X，Y）的技术。 该技术包括选择两个秘密参数a和b; 数字Xa和Yb的计算; 将两个数字Xa和Yb提供给计算服务器; 由所述服务器计算f（Xa，Yb） 从服务器接收f（Xa，Yb）的值; 提取f（Xa，Yb）的根根。
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