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一种提高SMS4安全性的算法 被引量:3

An improvement of security on SMS4
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摘要 SMS4是在国内正式使用并于2006年公布的第一个用于无线局域网的商用分组密码算法。关于其安全性研究的公开论文很少,文中研究SMS4算法的安全性并提出了一个提高其安全性的算法,详细讨论了该算法的正形性以及密码运算操作的正确性,同时通过与SMS4原算法的理论分析以及实验数据对比,得出结论:本SMS4改进算法在保证加解密操作的正确性以及基本不改变算法应用领域的前提下,提高了原SMS4算法的安全性。 SMS4 is a bloc cipher used in WLAN and published in the year of 2006 by the government of China. The number of published papers on research of SMS4 is very small. It discusses the security of SMS4 and proposes to improve the security of SMS4 in this paper. The orthomorphic character and the correctness of cipher operation are verified as well. Through analyses and experiments related to the both algorithms, it is concluded in the final that the security of the new SMS4 has been improved without changing its condition of use.
出处 《自动化与仪器仪表》 2009年第3期96-98,共3页 Automation & Instrumentation
关键词 SMS4 正形性 安全性 资源占用 SMS4 Orthornorphic character Security Occupancy of resources
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