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RSA-CEMD协议的缺陷及改进

Security flaws in RSA-CEMD protocol
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摘要 RSA-CEMD协议是基于RSA的挂号电子邮件协议.为检查其是否能够保证协议双方的公平性,对其进行分析发现协议存在多处安全缺陷,不能达到协议设计者预计的安全目标.为克服RSA-CEMD协议存在的缺陷,对其进行了修改并对修改后的协议进行了分析,修改后的协议能够满足公平性. RSA-CEMD protocol is proposed for the certified E-mail delivery. It is analyzed to check if it can assure the fairness for the parties of the protocol. It can be seen there are flaws in the protocol and it can not achieve the security goals that the deviser expected. RSA-CEMD pmtocl is amended to overcome its flaws. Through analysis of the amended protocol, it can be found that the amended protocol can guarantee fairness.
作者 邢育红 李大兴 卿斯汉
机构地区 山东大学网络信息安全研究所 中国科学院软件研究所信息安全国家重点实验室
出处 《山东大学学报（工学版）》 CAS 2005年第6期122-124,共3页 Journal of Shandong University（Engineering Science）
关键词 公平交换协议 可验证的加密签名 RSA密码体制 fair exchange protocol verfiably encrypted signature RSA cryptosystem
分类号 TP309 [自动化与计算机技术—计算机系统结构]
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参考文献9

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山东大学学报（工学版）
2005年 第6期

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