Signature Generation Device, Key Generation Device, and Signature Generation Method
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    发明申请
    Signature Generation Device, Key Generation Device, and Signature Generation Method 有权
    签名生成装置,密钥生成装置和签名生成方法

    公开(公告)号:US20080089514A1

    公开(公告)日:2008-04-17

    申请号:US11795256

    申请日:2006-01-17

    IPC分类号: H04L9/30

    摘要: There is provided a signature generation apparatus capable of preventing transcript attack on signature data. The signature generation apparatus for generating signature data for message data (i) acquires, according to a predetermined acquisition method, a private key, which is different from a private key used in a previous digital signature operation, from among a plurality of private keys generated using a key generation method of a signature scheme in which the plurality of private keys correspond to a single public key, and (ii) performs, using the acquired private key, a digital signature operation on the message data according to a signature method of the signature scheme to generate the signature data.

    摘要翻译: 提供了能够防止对签名数据的转录攻击的签名生成装置。 用于生成消息数据的签名数据的签名生成装置(i)根据预定的获取方法从生成的多个私钥中获取与先前的数字签名操作中使用的私钥不同的私钥 使用其中所述多个私钥对应于单个公钥的签名方案的密钥生成方法,以及(ii)使用所获取的私钥对所述消息数据执行数字签名操作,所述签名方法根据所述签名方法 签名方案生成签名数据。