| 一种无证书签密方案的安全性分析及改进 |
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| 引用本文： | 樊爱京. 一种无证书签密方案的安全性分析及改进[J]. 信阳师范学院学报(自然科学版), 2012, 0(4): 551-554 |
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| 作者姓名： | 樊爱京 |
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| 作者单位： | 平顶山学院网络计算中心 |
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| 基金项目： | 河南省科技计划重点项目(102102210416) |
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| 摘 要： | 利用无证书密码体制的安全模型,分析了一种无证书数字签密方案,发现其存在安全性缺陷.针对这些安全性缺陷,对原方案进行了改进.分析结果表明,该方案具有安全保密性、不可伪造性、不可否认性,改进的方案是有效安全的.
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| 关 键 词： | 无证书签密 双线性对 机密性 不可伪造性 |
Security Analysis and Improvement of a Certificateless Signcryption Scheme |
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| FAN Ai-jing. Security Analysis and Improvement of a Certificateless Signcryption Scheme[J]. Journal of Xinyang Teachers College(Natural Science Edition), 2012, 0(4): 551-554 |
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| Authors: | FAN Ai-jing |
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| Affiliation: | FAN Ai-jing(Network Computer Center,Pingdingshan University,Pingdingshan 467002,China) |
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| Abstract: | A kind of certificateless digital signcryption scheme was analyzed by using the certificateless cryptosystem security model,and the security flaws were found.Furlhermore,the improved scheme was proposed to eradicate the security flaws.The analysis results show that the improved scheme is characterized by its confidentiality,unforgeability,nonrepudiation,which implies that the improved scheme is safe and effective. |
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| Keywords: | certificateless cryptosystem bilinear pairing confidentiality unforgeability |
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