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公开(公告)号：US20150270977A1
公开(公告)日：2015-09-24
申请号：US14434716
申请日：2013-10-11
申请人： Morpho
CPC分类号： H04L9/3268 , H04L9/007 , H04L9/0866 , H04L9/30 , H04L9/3249 , H04L9/3252 , H04L2209/24 , H04L2209/64 , H04L2209/72
摘要： The invention concerns a method for generating an electronic signature key and an associated public key certificate, implemented by a client unit and a server unit, the method comprising a step during which the client unit and/or the server unit generate(s) a signature key comprising a private key and a public key, and a public key certificate comprising said public key, the method being characterised in that the client unit acquires an item of biometric data of an individual, and in that the signature key and/or the public key certificate are generated from at least a portion of said biometric data, and in that the portion of biometric metric data from which the signature key and/or the public key certificate have been generated is ephemeral and is not memorised after the signature key and the public key certificate have been generated. The invention also concerns a method for transferring a message and a system designed to implement the method for generating a signature key.
摘要翻译： 本发明涉及一种用于生成由客户单元和服务器单元实现的电子签名密钥和相关联的公钥证书的方法，所述方法包括以下步骤：客户端单元和/或服务器单元生成签名 包括私钥和公开密钥的密钥和包括所述公开密钥的公钥证书，所述方法的特征在于，所述客户端单元获取个体的生物特征数据项，并且所述签名密钥和/或公共密钥 从所述生物特征数据的至少一部分生成密钥证书，并且已经生成签名密钥和/或公开密钥证书的生物测量度量数据的部分是短暂的，并且在签名密钥和 已生成公钥证书。 本发明还涉及用于传送消息的方法和被设计用于实现用于生成签名密钥的方法的系统。
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公开(公告)号：US09715595B2
公开(公告)日：2017-07-25
申请号：US14730135
申请日：2015-06-03
申请人： Morpho
发明人： Alain Patey , Hervé Chabanne , Julien Bringer
CPC分类号： G06F21/6218 , G06F21/6245 , H04L9/085 , H04L9/3231 , H04L2209/46
摘要： A method of secure distributed storage on N servers and a secure access method to confidential data stored in a secure and distributed manner on N servers are provided. Additionally, distributed storage, devices, systems, computer programs and storage medium are provided for the implementation of such methods.
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公开(公告)号：US09860068B2
公开(公告)日：2018-01-02
申请号：US15033489
申请日：2014-10-30
申请人： MORPHO
发明人： Alain Patey , Hervé Chabanne , Julien Bringer , Roch Lescuyer
CPC分类号： H04L9/3247 , H04L9/3073 , H04L2209/42 , H04L2209/76 , H04L2209/805
摘要： The invention relates to a method of signature with pseudonym σ of a message m by a user device storing a secret signature key sk dependent at least on a first part of key f, on a second part of key x and on a third part of key A equal to (g1hf)1/(x+y) and comprising the following steps: —generation of a pseudonym nym equal to hf dpkx, with dpk a public domain parameter, —determination of random numbers a, r_a, r_f, r_x, r_b, r_d, —calculation of signature coefficients R1 equal to hr_Jdpkr_x, R2 equal to nymr_ah−r_ddpk−r_b, R3 equal to Zr_x Va−r_x−r_f−r_b W−r_a, with Z, V and W respectively equal to e(A, g2), e(h, g2) and e(h,w), —obtaining of a first signature parameter T equal to Aha, —calculation of a second signature parameter c by applying a cryptographic hash function H, to the public domain parameter dpk, to the pseudonym nym, to the first signature parameter T, to the signature coefficients R1, R2, R3 and to the message m, —calculation of signature parameters s_f, s_x, s_a, s_b, s_d, respectively equal to r_f+c.f, r_x+c.x, r_a+c.a, r_b+c.a.x and r_d+c.a.f, —generation of said signature with pseudonym σ of said message m on the basis of said signature parameters.
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公开(公告)号：US09735969B2
公开(公告)日：2017-08-15
申请号：US14434716
申请日：2013-10-11
申请人： Morpho
CPC分类号： H04L9/3268 , H04L9/007 , H04L9/0866 , H04L9/30 , H04L9/3249 , H04L9/3252 , H04L2209/24 , H04L2209/64 , H04L2209/72
摘要： The invention concerns a method for generating an electronic signature key and an associated public key certificate, implemented by a client unit and a server unit, the method comprising a step during which the client unit and/or the server unit generate(s) a signature key comprising a private key and a public key, and a public key certificate comprising said public key, the method being characterized in that the client unit acquires an item of biometric data of an individual, and in that the signature key and/or the public key certificate are generated from at least a portion of said biometric data, and in that the portion of biometric metric data from which the signature key and/or the public key certificate have been generated is ephemeral and is not memorized after the signature key and the public key certificate have been generated. The invention also concerns a method for transferring a message and a system designed to implement the method for generating a signature key.
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