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1. 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。

2. 发明授权

US07673144B2 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：US07673144B2
公开(公告)日：2010-03-02
申请号：US10500311
申请日：2002-12-20
申请人： David Arditti Modiano , Sébastien Canard , Marc Girault , Jacques Traore
发明人： David Arditti Modiano , Sébastien Canard , Marc Girault , Jacques Traore
IPC分类号： 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

US07697680B2 Traceable method and system for encrypting and/or decrypting data, and recording media for implementing the method 有权
标题翻译：用于加密和/或解密数据的可跟踪方法和系统，以及用于实现该方法的记录介质
公开(公告)号：US07697680B2
公开(公告)日：2010-04-13
申请号：US10560429
申请日：2004-06-02
申请人： David Arditti Modiano , Oliver Billet , Henri Gilbert
发明人： David Arditti Modiano , Oliver Billet , Henri Gilbert
IPC分类号： H04L9/28
CPC分类号： H04L9/0618 , H04L9/3093 , H04L2209/606
摘要： A traceable method for encrypting and/or decrypting data broadcast by at least one transmitter towards several decoders includes the steps: during encryption of broadcast data, the transmitter implements (in 86) at least one first secret function to transform an unencrypted message into an encrypted message; and during decryption of the broadcast data, all the decoders implement (in 92) at least one common second secret function, each decoder using therefor a mathematical description of the second function stored in a memory (21), the mathematical description of the second function being different from one decoder to another or from one group of decoders to another such that the mathematical description used identifies exclusively the particular decoder or group of decoders.
摘要翻译：用于加密和/或解密由至少一个发射机向多个解码器广播的数据的可跟踪方法包括以下步骤：在广播数据的加密期间，发射机实现（86）至少一个第一秘密功能，以将未加密的消息转换成加密的信息; 并且在解密广播数据期间，所有解码器（在92中）实现至少一个共同的第二秘密功能，每个解码器使用存储器（21）中存储的第二功能的数学描述，第二功能的数学描述不同于一个解码器到另一个解码器或从一组解码器到另一个解码器，使得所使用的数学描述专门识别特定解码器或解码器组。

4. 发明申请

US20060153377A1 Traceable method and system for encrypting and/or decrypting data, and recording media therefor 有权
标题翻译：用于加密和/或解密数据的可跟踪方法和系统，以及记录媒体
公开(公告)号：US20060153377A1
公开(公告)日：2006-07-13
申请号：US10560429
申请日：2004-06-02
申请人： David Arditti Modiano
发明人： David Arditti Modiano
IPC分类号： H04N7/167
CPC分类号： H04L9/0618 , H04L9/3093 , H04L2209/606
摘要： A traceable method for encrypting and/or decrypting data broadcast by at least one transmitter towards several decoders includes the steps: during encryption of broadcast data, the transmitter implements (in 86) at least one first secret function to transform an unencrypted message into an encrypted message; and during decryption of the broadcast data, all the decoders implement (in 92) at least one common second secret function, each decoder using therefor a mathematical description of the second function stored in a memory (21), the mathematical description of the second function being different from one decoder to another or from one group of decoders to another such that the mathematical description used identifies exclusively the particular decoder or group of decoders.
摘要翻译：用于加密和/或解密由至少一个发射机向多个解码器广播的数据的可跟踪方法包括以下步骤：在广播数据的加密期间，发射机实现（86）至少一个第一秘密功能，以将未加密的消息转换成加密的信息; 并且在解密广播数据期间，所有解码器（在92中）实现至少一个共同的第二秘密功能，每个解码器使用存储器（21）中存储的第二功能的数学描述，第二功能的数学描述不同于一个解码器到另一个解码器或从一组解码器到另一个解码器，使得所使用的数学描述专门识别特定解码器或解码器组。

5. 发明授权

US07526651B2 Electronic group signature method with revocable anonymity, equipment and programs for implementing the method 失效
标题翻译：具有可撤销匿名性的电子组签名方法，用于实施该方法的设备和程序
公开(公告)号：US07526651B2
公开(公告)日：2009-04-28
申请号：US10848943
申请日：2004-05-19
申请人： David Arditti Modiano , Laurent Frisch , Dimitri Mouton
发明人： David Arditti Modiano , Laurent Frisch , Dimitri Mouton
IPC分类号： H04L9/00
CPC分类号： H04L9/3255 , H04L2209/42
摘要： A ring-signature scheme is adapted so that at least one of the variability parameter values used is an identity trace of the anonymous signatory, determined as a function of anonymity withdrawal data stored and held secret by an anonymity withdrawal entity in connection with an identification of the anonymous signatory. This provides a subsequent controlled capacity of withdrawing the anonymity of the signatory, either by an authority, or by the signatory himself.
摘要翻译：环形签名方案被改编成使得所使用的可变性参数值中的至少一个是匿名签名者的身份痕迹，该身份痕迹被确定为由匿名提款实体存储和保密的匿名提取数据的函数，匿名签字人这提供了随后由管理机构或签字人本人撤回签字人匿名的受控能力。

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