公开(公告)号：US20060155985A1

公开(公告)日：2006-07-13

申请号：US10534857

申请日：2003-11-14

Applicant: Sebastien Canard ,  Stephane Guilloteau ,  Eric Malville ,  Jacques Traore

Inventor： Sebastien Canard ,  Stephane Guilloteau ,  Eric Malville ,  Jacques Traore

IPC: H04L9/00

CPC classification number: H04L63/0823 ,  G06F21/33 ,  G06Q20/383 ,  G06Q40/04 ,  H04L9/3234 ,  H04L9/3255 ,  H04L63/08 ,  H04L2209/42

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20060015737A1

公开(公告)日：2006-01-19

申请号：US10521833

申请日：2003-07-16

Applicant: Sebastien Canard ,  Marc Girault ,  Jacques Traore

Inventor： Sebastien Canard ,  Marc Girault ,  Jacques Traore

IPC: H04L9/00

CPC classification number: H04L9/3263 ,  G06Q20/383 ,  H04L9/3255 ,  H04L2209/42 ,  H04L2209/463

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20050097336A1

公开(公告)日：2005-05-05

申请号：US10501823

申请日：2003-01-15

Applicant: Sebastien Canard ,  Marc Girault ,  Jacques Traore

Inventor： Sebastien Canard ,  Marc Girault ,  Jacques Traore

IPC: G07F7/10 ,  H04K1/00

CPC classification number: G07F7/1008 ,  G06Q20/341 ,  G06Q20/40975 ,  H04L9/3234 ,  H04L9/3247 ,  H04L2209/42 ,  H04L2209/56

Abstract: 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.

Abstract translation: 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。