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Strongly Secure Certificateless Signature Scheme Supporting Batch Verification

机译:高度安全的无证书签名方案,支持批量验证

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摘要

We propose a strongly secure certificateless signature scheme supporting batch verification, which makes it possible for a verifier to verify a set of signatures more efficiently than verifying them one by one. In an identity-based digital signature scheme, private key generator (PKG) knows each user's signing key, so it can generate a signature which is indistinguishable from the signature generated by the user. This is a serious problem because the property of signature nonrepudiation will not be achieved. In our proposed scheme, it is impossible for PKG to produce a signature which is indistinguishable from any signature produced by a user. Compared with existing signature schemes with batch verification, although our proposed scheme is not the most efficient one, it achieves Girault's level-3 security, while the others have Girault's level-1 or level-2 security only. We also formally prove that the proposed scheme is unforgeable and satisfies Girault's level-3 security based on hard problems.
机译:我们提出了一种高度安全的无证书签名方案,该方案支持批量验证,与逐个验证签名相比,验证者可以更高效地验证一组签名。在基于身份的数字签名方案中,私钥生成器(PKG)知道每个用户的签名密钥,因此它可以生成与用户生成的签名没有区别的签名。这是一个严重的问题,因为将无法实现签名不可否认性。在我们提出的方案中,PKG不可能产生与用户产生的任何签名都没有区别的签名。与现有的具有批量验证的签名方案相比,尽管我们提出的方案不是最有效的方案,但它可以实现Girault的3级安全性,而其他方案仅具有Girault的1级或2级安全性。我们还正式证明了该方案是不可伪造的,并且基于困难问题可以满足Girault的3级安全性。

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  • 来源
    《Mathematical Problems in Engineering》 |2014年第8期|854135.1-854135.11|共11页
  • 作者单位

    Department of Computer Science and Engineering, National Sun Yat-sen University, Kaohsiung 80424, Taiwan;

    Network Benchmarking Lab, Hsinchu 30010, Taiwan;

    Department of Computer Science and Engineering, National Sun Yat-sen University, Kaohsiung 80424, Taiwan;

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