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    • 1. 发明申请
    • Security method using electronic signature
    • 使用电子签名的安全方法
    • US20060248339A1
    • 2006-11-02
    • US11411926
    • 2006-04-27
    • Dae-youb KimHwan-joon KimMaeng-hee SungWeon-Il Jin
    • Dae-youb KimHwan-joon KimMaeng-hee SungWeon-Il Jin
    • H04L9/00
    • H04L63/0823H04L9/085H04L9/3247H04L63/126
    • A security method using an electronic signature, which improves the performance of an electronic signature authentication by generating and verifying an electronic signature using a mediator, and acquires a forward security in an electronic signature generation and verification by adding a forward secure signature of semi-trusted party (SEM) to a partial signature value generated based on a secret key piece of the SEM. A public key and an optional secret key composed of two kinds of pieces are generated by a certificate authority in response to a request from a user terminal device. The secret key pieces are issued to the user terminal device and a semi-trusted party not to be overlapped with each other. A first signature piece generated from the issued pieces of the private key is transmitted to the user terminal device from the semi-trusted party when a certificate of the user terminal device is still valid.
    • 一种使用电子签名的安全方法,其通过使用调解器生成和验证电子签名来提高电子签名认证的性能,并且通过添加半信任的前向安全签名来获取电子签名生成和验证中的前向安全性 (SEM)到基于SEM的秘密密钥片段生成的部分签名值。 响应于来自用户终端设备的请求,由证书颁发机构生成由两种片段组成的公钥和可选秘密密钥。 秘密密钥片段被发送给用户终端设备和不相互重叠的半信任方。 当用户终端设备的证书仍然有效时,从发行的私钥生成的第一签名片段从半信任方发送到用户终端设备。