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An Improved Differential Fault Analysis Attack to AES Using Reduced Searching Space

机译:使用减少的搜索空间的针对AES的改进的差分故障分析攻击

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Differential Power Analysis against AES proved to be effective, with use mask techniques, we can truncate the relevance and defense DPA attacks successfully. In this paper, we introduce a new mean called DFA (Differential Fault Attack), DFA has been shown successfully to attack AES algorithm with masking. We inject a fault to the intermediate results and other general form to obtain the ciphertext with faults, using the ciphertext we can recover the keys. Firstly, we construct the Sbox / InvSbox distribution tables to make the results sets space is less than 2~8 with two correct/fault ciphertexts pairs, even, in most cases, the set space are strict in 2~2. Secondly, we also demonstrated that the model of DFA we constructed can ignore the masking techniques and propose some methods to recover the keys with less time consuming and reduced searching space. Lastly, we make the module into an application and prove the module is effective.
机译:事实证明,针对AES的差分功率分析是有效的,通过使用掩码技术,我们可以成功截断相关性和防御DPA攻击。在本文中,我们介绍了一种称为DFA(差分故障攻击)的新方法,该方法已经成功地证明了DFA具有屏蔽功能,可以攻击AES算法。我们向中间结果和其他一般形式注入错误,以获得带有错误的密文,使用密文我们可以恢复密钥。首先,我们构造Sbox / InvSbox分布表,以使结果集空间小于2〜8,并带有两个正确/故障密文对,即使在大多数情况下,集合空间也严格限制在2〜2。其次,我们还证明了我们构建的DFA模型可以忽略屏蔽技术,并提出了一些方法来恢复密钥,从而节省了时间并减少了搜索空间。最后,我们将该模块放入应用程序中,并证明该模块是有效的。

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