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Practical complexity differential cryptanalysis and fault analysis of AES

机译：AES的实用复杂度差分密码分析和故障分析

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摘要

This paper presents a survey of practical complexity differential cryptanalysis of AES and compares this to attacks that have been proposed for differential fault analysis. Naturally, the attacks in each vein of research are applicable in the other but use different models. In this paper we draw from both topics to improve attacks proposed in the literature. We re-evaluate the so-called Square attack and the use of impossible differentials in terms of differential fault analysis using a weaker model than previously considered in the literature. Furthermore, we propose two new attacks applicable to both differential cryptanalysis and differential fault analysis. The first is a differential cryptanalysis of four-round AES based on a differential that occurs with a non-negligible probability. The second is an application of the Square attack to a five-round AES that requires 28 ciphertexts and a time complexity equivalent to approximately 2375 AES encryptions.
机译：本文介绍了对AES的实际复杂度差分密码分析的调查，并将其与为差分故障分析提出的攻击进行了比较。当然，研究的各个方向的攻击也可以相互适用，但使用不同的模型。在本文中，我们从这两个主题中汲取了经验，以改进文献中提出的攻击。我们使用比以前在文献中考虑的模型更弱的模型，通过差分故障分析来重新评估所谓的Square攻击和不可能差分的使用。此外，我们提出了两种适用于差分密码分析和差分故障分析的新攻击。第一个是基于以不可忽略的概率发生的差分对四轮AES进行差分密码分析。第二种是将Square攻击应用于五轮AES，它需要28个密文，并且时间复杂度大约相当于2375个AES加密。

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