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1. 发明申请

US20080046310A1 Method and System for Generating a List Signature 失效
标题翻译：生成列表签名的方法和系统
公开(公告)号：US20080046310A1
公开(公告)日：2008-02-21
申请号：US11596548
申请日：2005-05-18
申请人： Sebastien Canard , Marc Girault , Jacques Traore
发明人： Sebastien Canard , Marc Girault , Jacques Traore
IPC分类号： H04L9/00 , G06F11/00
CPC分类号： H04L9/3255 , H04L2209/42 , H04L2209/463 , H04L2209/56
摘要： The invention relates to a method for generating a list signature for a message to be signed, said method comprising steps which are carried out by an electronic material support of a member of a list. During said step, the electronic material support only generates an electronic signature according to a sequence number supplied to the electronic material support by a certifying authority, according to evidence of belonging to the list of members, to data relating to the electronic material support, and optionally to a key of an authority qualified to lift the anonymity of the generated signature.
摘要翻译：本发明涉及一种用于生成要签名的消息的列表签名的方法，所述方法包括由列表的成员的电子资料支持来执行的步骤。在所述步骤期间，电子材料支持仅根据由认证机构提供给电子资料支持的序列号，根据成员名单的证据，产生与电子资料支持有关的数据的电子签名，以及可选地具有授权提升生成的签名的匿名性的机构的密钥。

2. 发明申请

US20050081038A1 Cryptographic system for group signature 失效
标题翻译：用于组签名的加密系统
公开(公告)号：US20050081038A1
公开(公告)日：2005-04-14
申请号：US10500311
申请日：2002-12-20
申请人： David Arditti Modiano , Sebastien Canard , Marc Girault , Jacques Traore
发明人： David Arditti Modiano , Sebastien Canard , Marc Girault , Jacques Traore
IPC分类号： H04L9/08 , H04L9/10 , H04L9/32 , H04L9/00
CPC分类号： H04L9/3255
摘要： The invention concerns a system enabling a member (M) of a group (G) to produce, by means of customized data (z; K), a message (m) accompanied by a signature (8) proving to a verifier that the message originates from a member of the group (G). The invention is characterized in that the customized data is in the form of an electronic physical medium (26). Advantageously, the latter also incorporates: encrypting means (B3) for producing a customized cipher (C) from the customized data prior to the signature S of the message (m), means (B5) for producing a combination of a message m to be signed and the cipher (C) associated with said message, for example in the form of a concatenation of the message (m) with the cipher (C), and means (B6) for signing (Sig) the message (m) with the customized data (z; K) in the form of a cipher (C) associated with said message. Advantageously, the physical medium is a smart card (26) or the like.
摘要翻译：本发明涉及使得组（G）的成员（M）能够通过定制数据（z; K）产生伴随着签名（8）的消息（m）的系统，该签名（8）向验证者证明该消息来自该组（G）的成员。本发明的特征在于，定制数据是电子物理介质（26）的形式。有利地，后者还包括：用于在消息（m）的签名S之前从定制数据产生定制密码（C）的加密装置（B3），用于产生消息m的组合的装置（B5）签名和与所述消息相关联的密码（C），例如以消息（m）与密码（C）的级联的形式，以及用于与消息（m）签名（Sig）消息（M）的装置以与所述消息相关联的密码（C）的形式的定制数据（z; K）。有利地，物理介质是智能卡（26）等。

3. 发明授权

US08352380B2 Method and system for generating a list signature 失效
标题翻译：用于生成列表签名的方法和系统
公开(公告)号：US08352380B2
公开(公告)日：2013-01-08
申请号：US11596548
申请日：2005-05-18
申请人： Sebastien Canard , Marc Girault , Jacques Traore
发明人： Sebastien Canard , Marc Girault , Jacques Traore
IPC分类号： G06Q99/00 , H04L9/00
CPC分类号： H04L9/3255 , H04L2209/42 , H04L2209/463 , H04L2209/56
摘要： The invention relates to a method for generating a list signature for a message to be signed, said method comprising steps which are carried out by an electronic material support of a member of a list. During said step, the electronic material support only generates an electronic signature according to a sequence number supplied to the electronic material support by a certifying authority, according to evidence of belonging to the list of members, to data relating to the electronic material support, and optionally to a key of an authority qualified to lift the anonymity of the generated signature.
摘要翻译：本发明涉及一种用于生成要签名的消息的列表签名的方法，所述方法包括由列表的成员的电子资料支持来执行的步骤。在所述步骤期间，电子材料支持仅根据由认证机构提供给电子资料支持的序列号，根据成员名单的证据，产生与电子资料支持有关的数据的电子签名，以及可选地具有授权提升生成的签名的匿名性的机构的密钥。

4. 发明申请

US20050169461A1 Method and device for anonymous signature with a shared private key 失效
标题翻译：使用共享私钥进行匿名签名的方法和设备
公开(公告)号：US20050169461A1
公开(公告)日：2005-08-04
申请号：US10500792
申请日：2002-12-13
申请人： Sebastien Canard , Marc Girault , Jacques Traore
发明人： Sebastien Canard , Marc Girault , Jacques Traore
IPC分类号： G09C1/00 , H04L9/32 , H04K1/00
CPC分类号： H04L9/3255
摘要： 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.
摘要翻译：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。

5. 发明申请

US20060015737A1 List signature method and application to electronic voting 有权
标题翻译：列表签名方法和电子投票申请
公开(公告)号：US20060015737A1
公开(公告)日：2006-01-19
申请号：US10521833
申请日：2003-07-16
申请人： Sebastien Canard , Marc Girault , Jacques Traore
发明人： Sebastien Canard , Marc Girault , Jacques Traore
IPC分类号： H04L9/00
CPC分类号： H04L9/3263 , G06Q20/383 , H04L9/3255 , H04L2209/42 , H04L2209/463
摘要： The invention concerns a list signature method comprising: an organization phase whereby reliable authority defines parameters for implementing an anonymous electronic signature; a phase which consists in registering persons on a list of authorized members to generate a list signature, during which each person calculates a private key, and the reliable authority delivers to each person a certificate for membership of the list; a phase which consists in defining a serial number; a phase wherein a member of the list generates by means of certificate a signature containing an element common to all the signatures issued by one single member with one single serial number; a phase which consists in verifying whether the signature has been generated by a member of the list and whether the serial number has been used to generate the signature.
摘要翻译：本发明涉及一种列表签名方法，包括：组织阶段，其中可靠的权限定义用于实现匿名电子签名的参数; 该阶段包括将人员登记在授权成员名单上以生成列表签名，在此期间，每个人计算私钥，可靠的权力机构向每个人递送列表成员的证书; 一个定义序列号的阶段一个阶段，其中该列表的成员通过证书生成一个签名，该签名包含一个单个成员发出的所有签名所共有的元素和一个单个序列号; 一个阶段，其中包括验证签名是否由列表的成员生成，以及序列号是否已被用于生成签名。

6. 发明申请

US20050097336A1 Cryptographic revocation method using a chip card 失效
标题翻译：密码撤销方法使用芯片卡
公开(公告)号：US20050097336A1
公开(公告)日：2005-05-05
申请号：US10501823
申请日：2003-01-15
申请人： Sebastien Canard , Marc Girault , Jacques Traore
发明人： Sebastien Canard , Marc Girault , Jacques Traore
IPC分类号： G07F7/10 , H04K1/00
CPC分类号： G07F7/1008 , G06Q20/341 , G06Q20/40975 , H04L9/3234 , H04L9/3247 , H04L2209/42 , H04L2209/56
摘要： A cryptographic method and a chip card which is used to carry out the method. Before any calculation is performed by a computing means of the chip card, the chip card reads (2) an integral list, in a storage means of a second entity, of identifiers of first proprietary entities of a chip card. Such list is linked to each status assigned to each of the first entities by the second entity. Subsequently, the chip card compares (3) the identifier stored in a storage means of the chip card with the contents of the list, in order to authorize (5) or prohibit (4) any calculation by the computing means depending on the result of the comparison.
摘要翻译：用于执行该方法的加密方法和芯片卡。在通过芯片卡的计算装置执行任何计算之前，芯片卡在（2）芯片卡的第一专有实体的标识符的第二实体的存储装置中读取（2）整体列表。该列表与由第二实体分配给每个第一实体的每个状态相关联。随后，芯片卡将存储在芯片卡的存储装置中的标识符与列表的内容进行比较（3），以便授权（5）或禁止（4）根据计算装置的任何计算比较。

7. 发明申请

US20070192607A1 Electronic voting process using fair blind signatures 审中-公开
标题翻译：电子投票过程采用公平盲签名
公开(公告)号：US20070192607A1
公开(公告)日：2007-08-16
申请号：US10591786
申请日：2005-02-28
申请人： Sebastien Canard , Matthieu Gaud , Jacques Traore
发明人： Sebastien Canard , Matthieu Gaud , Jacques Traore
IPC分类号： H04L9/00
CPC分类号： G07C13/00 , H04L9/3257 , H04L2209/463
摘要： In an electronic voting process, a voter (Vi) encrypts his vote (vi) according to the encryption scheme (ETM) of a tallier mix-net (50) used to tally up the votes cast. The voter (Vi) obtains on his encrypted vote, (xi), from an admin server module (20), a digital signature according to a fair blind signature scheme (FBSS). The encrypted vote (xi) is encrypted a second time, together with the unblinded digital signature (yi) thereof by the admin server, using the encryption scheme (EM) of a randomizing mix-net (40), to yield an output (ci), and the voter uses his own signature scheme (Si) to sign this, giving (σi). The voter sends an ID code and data including (ci,σi) to a bulletin board server (30). Discrepancies in this vote data can be detected and their origin traced by prompting the randomizing mix-net servers (40) to provide proofs of correctness, and using the signature-tracing mechanism of FBSS.
摘要翻译：在电子投票过程中，选民（Vi）根据加密方案（E TM TM）of of of of of of of of of of of of of of of of of of of of 一个更高的混合网（50）用于统计投票。选民（V ）从管理服务器模块（20）获得他的加密投票（x / i>），根据公平盲签名方案的数字签名（FBSS）。使用加密方案（E ），加密第二次加密的投票（x ＆lt; i＆gt;）以及管理服务器的未遮蔽的数字签名（y i i i i）（40）的随机混合网（40）中，以产生输出（c），并且选民使用他自己的签名方案（S＆lt; i＆lt; SUB>）来签名，给（sigma _{i ）。投票人向公告板服务器（30）发送一个ID码和数据，其中包括（c> i，igma igma igma igma igma i i i i i i i i。。。。。。。。。。。。。。。。）可以通过提示随机混合网络服务器（40）提供正确性证明，并使用FBSS的签名跟踪机制来检测这个投票数据的差异，并且它们的起始点。}

8. 发明申请

US20080052227A1 Anonymous and Secure Internet Payment Method and Mobile Devices 失效
标题翻译：匿名和安全的互联网支付方式和移动设备
公开(公告)号：US20080052227A1
公开(公告)日：2008-02-28
申请号：US11596778
申请日：2005-05-17
申请人： Sebastien Canard , Eric Malville , Jacques Traore , Bruno Cosnefroy , Sidonie Caron
发明人： Sebastien Canard , Eric Malville , Jacques Traore , Bruno Cosnefroy , Sidonie Caron
IPC分类号： G06Q40/00
CPC分类号： G06Q20/342 , G06Q20/04 , G06Q20/10 , G06Q40/00 , G06Q40/025 , G07F7/025 , H04L9/3257 , H04L2209/42 , H04L2209/56
摘要： An anonymous and secure on-line payment system and method based on the partially blind signature cryptographic method with revocable anonymity. To this end, an Anonymity Server (SA) enables the Customer (C) to acquire on-line anonymous payment means on the basis of a protocol that does not enable the Anonymity Server to link the payment means to the Customer (C). The Payment Server (SdP) comprises means for opening an anonymous account using the anonymous payment means (50). A Customer (C) can make an on-line purchase from a Merchant Site (SM) without having to give a bank card number and remaining anonymous to the merchant and more generally to any entity present in the transaction or absent therefrom. However, this anonymity may be revoked by a trusted entity in the event of fraud on the Customer. Finally, a Customer can make payments when on the move.
摘要翻译：一种匿名安全的在线支付系统和方法，基于部分盲签名密码方法，具有可撤销的匿名性。为此，匿名服务器（SA）使得客户（C）能够基于不使匿名服务器将付款方式链接到客户（C）的协议获取在线匿名支付方式。支付服务器（SdP）包括使用匿名支付装置（50）打开匿名帐户的装置。客户（C）可以从商户网站（SM）进行在线购买，而无需给予银行卡号码，并且对于商户而言更为普遍地存在于交易中存在的任何实体或不在其中的实体。然而，在客户发生欺诈的情况下，这个匿名可能被信任的实体撤销。最后，客户可以在搬家时付款。

9. 发明申请

US20050278536A1 Fair blind signature process 失效
标题翻译：公平盲签名过程
公开(公告)号：US20050278536A1
公开(公告)日：2005-12-15
申请号：US11070033
申请日：2005-03-02
申请人： Sebastien Canard , Matthieu Gaud , Jacques Traore
发明人： Sebastien Canard , Matthieu Gaud , Jacques Traore
IPC分类号： H04L9/32 , H04L9/00
CPC分类号： H04L9/321 , H04L9/3257 , H04L2209/42
摘要： In a fair blind signature process, a user interacts with a signer in order to complete a 7-tuple (A,e,s,t,xu,x,m) such that Ae=a0α1x α2m α3u α4t α5s (mod n), where a0, a1, a2, a3, a4 and a5 and n are elements of the Signer's public key (PUBKs). During the signature-issuing phase the user (U) provides the signer (S) with a data element (α1x) encrypted according to a key (f) known to a trusted authority (TA), and this data element (α1x) is disclosed during transmission of the signed message. Similarly, the signed message is transmitted associated with second encrypted data comprising a second data element (α3xu) encrypted according to a key (f) known to the trusted authority (TA), and this second data element (α3xu) is disclosed to the Signer during the signature-issuing phase. Thus, the trusted authority (TA) can revoke the anonymity of the digital signature.
摘要翻译：在公平盲签名过程中，用户与签名者进行交互以完成7元组（A，e，s，t，x，x，x，m），使得A < α1α1α2α2α2α2α2α2 3 SUP> s （mod n），其中0 ，1 ，2 ，3 < SUB>，第4和第5和第n个是签名者公钥（PUBK ）的元素。在签名发布阶段期间，用户（U）向签名者（S）提供根据已知的密钥（f）加密的数据元素（α<1> ^{x>），可信管理机构（TA），并且在发送签名消息期间公开该数据元素（α<1> ^{x ）。类似地，与第二加密数据相关联地发送签名的消息，该第二加密数据包括第二数据元素（α3，...，SUP））根据可信管理机构（TA）已知的密钥（f）加密，并且该第二数据元素（α3） SUB2> ）在签名发行阶段向签署者披露。因此，可信管理机构（TA）可以撤销数字签名的匿名性。}}

10. 发明申请

US20060155985A1 Method and system with authentication, revocable anonymity and non-repudiation 有权
标题翻译：方法和系统具有认证，可撤销匿名和不可否认性
公开(公告)号：US20060155985A1
公开(公告)日：2006-07-13
申请号：US10534857
申请日：2003-11-14
申请人： Sebastien Canard , Stephane Guilloteau , Eric Malville , Jacques Traore
发明人： Sebastien Canard , Stephane Guilloteau , Eric Malville , Jacques Traore
IPC分类号： H04L9/00
CPC分类号： H04L63/0823 , G06F21/33 , G06Q20/383 , G06Q40/04 , H04L9/3234 , H04L9/3255 , H04L63/08 , H04L2209/42
摘要： The present invention relates to a method of access to a service consisting in i) identifying and registering a client (C), ii) authenticating the client to an anonymous certification authority, iii) authenticating the client by producing an anonymous signature and opening and maintaining an anonymous authentication session with a server (Se), and iv) selectively allowing contact between the server (Se) and the anonymous certification authority (ACA) to revoke the anonymity of the client (C) using the signature provided in step iii). The invention also relates to a system for opening and maintaining an authentication session guaranteeing non-repudiation.
摘要翻译：本发明涉及一种访问服务的方法，该方法包括：i）识别和注册客户端（C），ii）向匿名证书颁发机构认证客户端，iii）通过产生匿名签名和开放和维护来认证客户端与服务器（Se）的匿名认证会话，以及iv）使用在步骤iii）中提供的签名，选择性地允许服务器（Se）和匿名认证机构（ACA）之间的联系来撤销客户端（C）的匿名。本发明还涉及一种用于打开和维护保证不可否认性的认证会话的系统。

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