文章基本信息

标题：An Improvement Crypton Protocol with Higher Security Margin
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作者：Wang, Xiaoying ; Chen, Danqi ; Liu, Qingjie 等
期刊名称：Journal of Networks
印刷版ISSN：1796-2056
出版年度：2014
卷号：9
期号：10
页码：2788-2795
DOI：10.4304/jnw.9.10.2788-2795
语种：English
出版社：Academy Publisher
摘要：In this paper, we reconsider the block cipher of CRYPTON. We analyze weaknesses of the structure and components in CRYPTON, which cause many threatening attacks on it. By revising the non-linear layer, the linear layer, the key addition layer, as well as the key schedule, we construct a new CRYPOTN which has much higher security level and yet can be realized efficiently in practice. We give some analysis about differential attacks and linear attacks for the modified CRYPTON, and show that it can resist against these attacks. Finally, we take use of NIST’s statistical test suite to evaluate randomness of our modified CRYPTON. The testing results indicate that our improvements result in a block cipher that can generate enough unpredictable cipher texts.
关键词：CRYPTON;Differential Attacks;Key Schedule;Linear Layer;Non-Linear Layer