On the Effect of the Key-Expansion Algorithm in Simon-like Ciphers
On the Effect of the Key-Expansion Algorithm in Simon-like Ciphers
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类西蒙密码中密钥扩展算法的作用研究
DOI：
10.1093/comjnl/bxab082
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Chao Li
中科院分区：
文献类型：
--
作者：
Jinyu Lu;Yunwen Liu;Tomer Ashur;Chao Li
抽象的。在这项工作中，我们研究如何选择的密钥扩展算法及其与轮函数的相互作用影响的电阻西蒙对旋转异或密码分析的密码。我们观察到，在我们考虑的密钥扩展算法中，Simon是最有抵抗力的，而Simeck则要小得多。轻量级密码设计的影响进行了讨论，并提出了开放的问题。
Abstract. In this work, we investigate how the choice of the key-expansion algorithm and its interaction with the round function affect the resistance of Simon-like ciphers against rotational-XOR cryptanalysis. We observe that, among the key-expansion algorithms we consider, Simon is most resistant, while Simeck is much less so. Implications on lightweight ciphers design are discussed and open questions are proposed.