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    • 1. 发明授权
    • Method for two step digital signature
    • 两步数字签名方法
    • US08589693B2
    • 2013-11-19
    • US13125591
    • 2009-10-21
    • Serge BarthelemyJacques Thieblemont
    • Serge BarthelemyJacques Thieblemont
    • H04L9/32
    • H04L9/321H04L9/3255H04L2209/56H04L2209/80
    • The invention relates to a method for the digital signature of a message by a signer having an identity and holding a signature device, in which a public key cryptographic scheme is used. The signer has a public key and two private keys, the second private key being deposited at a reliable third party. For each signing operation, two additional steps are respectively carried out with a separate private key, i.e.: the calculation by the signer of a pre-signature of the message using the first private key, and transmitting the message and the pre-signature to the reliable third party; and the verification by the reliable third party of the pre-signature followed by the calculation by the reliable third party of a signature of the message using the second private key deposited at the reliable third party as well as the pre-signature previously calculated by the signer.
    • 本发明涉及一种具有身份和签名签名装置的签名者对消息进行数字签名的方法,其中使用公钥密码方案。 签名者有公钥和两个私钥,第二个私钥存放在可靠的第三方。 对于每个签名操作,分别使用单独的私钥执行两个附加步骤,即:签名者使用第一私人密钥对消息的预签名进行计算,以及将消息和预签名发送到 可靠的第三方; 以及由可靠的第三方验证预先签名,然后由可靠的第三方使用存储在可靠的第三方的第二私钥的消息的签名进行计算,以及先前由 签字人
    • 2. 发明申请
    • METHOD FOR TWO STEP DIGITAL SIGNATURE
    • 两步数字签名方法
    • US20110264917A1
    • 2011-10-27
    • US13125591
    • 2009-10-21
    • Serge BarthelemyJacques Thieblemont
    • Serge BarthelemyJacques Thieblemont
    • H04L9/32
    • H04L9/321H04L9/3255H04L2209/56H04L2209/80
    • The invention relates to a method for the digital signature of a message by a signer having an identity and holding a signature device, in which a public key cryptographic scheme is used. The signer has a public key and two private keys, the second private key being deposited at a reliable third party. For each signing operation, two additional steps are respectively carried out with a separate private key, i.e.: the calculation by the signer of a pre-signature of the message using the first private key, and transmitting the message and the pre-signature to the reliable third party; and the verification by the reliable third party of the pre-signature followed by the calculation by the reliable third party of a signature of the message using the second private key deposited at the reliable third party as well as the pre-signature previously calculated by the signer.
    • 本发明涉及一种具有身份和签名签名装置的签名者对消息进行数字签名的方法,其中使用公钥密码方案。 签名者有公钥和两个私钥,第二个私钥存放在可靠的第三方。 对于每个签名操作,分别使用单独的私钥执行两个附加步骤,即:签名者使用第一私人密钥对消息的预签名进行计算,以及将消息和预签名发送到 可靠的第三方; 以及由可靠的第三方验证预先签名,然后由可靠的第三方使用存储在可靠的第三方的第二私钥的消息的签名进行计算,以及先前由 签字人