| 一种无证书签名方案的安全性分析及改进 |
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| 引用本文： | 樊爱宛,任童童,鲁书喜.一种无证书签名方案的安全性分析及改进[J].平顶山学院学报,2012,27(2):59-64. |
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| 作者姓名： | 樊爱宛 任童童 鲁书喜 |
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| 作者单位： | 平项山学院计算机科学与技术学院,河南平项山,467099 |
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| 基金项目： | 河南省科技计划重点项目 |
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| 摘 要： | 利用无证书密码体制的安全模型,分析一种无证书数字签名方案,发现存在安全性缺陷.针对这些安全性缺陷,对原方案进行改进.其安全性基于一个经典的困难问题——计算Diffie-Hellman问题,使得改进方案是可证安全的.
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| 关 键 词： | 无证书签名 双线性对 公钥替换攻击 随机预言模型 |
Cryptanalysis and Improvement of a Certificateless Digital Signature Scheme |
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| FAN Ai-wan,REN Tong-tong,LU Shu-xi.Cryptanalysis and Improvement of a Certificateless Digital Signature Scheme[J].Journal of Pingdingshan University,2012,27(2):59-64. |
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| Authors: | FAN Ai-wan REN Tong-tong LU Shu-xi |
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| Institution: | (School of Computer Science and Technology,Pingdingshan University,Pingdingshan,Henan 467099,China) |
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| Abstract: | With the help of a certificateless security model,a certificateless digital signature was analyzed and the security flaws were found.The original scheme was improved for these security flaws.Its security is based on a classical difficult problem——computing Diffie-Hellman problem.The improved scheme is provably secure. |
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| Keywords: | certificateless digital signature public key substitution attack bilinear pairings random oracle model |
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