高级加密标准的密钥线性特征及相关性分析

Analysis on the linear characteristics and correlation of advanced encryption standard key

高级加密标准(AES)的应用越来越广泛,因此它的安全性成为很多学者的研究课题,其中一个很重要的研究方向就是通过AES的密钥特征来攻击该方法。本文重点分析了AES密钥编排的线性特征及其相关性,同时给出了一种利用相关密钥来攻击AES的思路。本文中的分析结果将会为后面的多轮差分分析,相关密钥的差分分析,相关密钥的不可差分分析提供理论的依据。

As AES is widely used, its security problem is becoming a research focus of many scholars. One of the important research fields is to attack the method through its key characteristics. This paper puts an emphasis on the linear characteristics of AES key arrangement and its correlation; at the same time, it proposes an idea of attacking AES using some correlative keys. The result in this paper will provide a theoretical basis for muhi-turn difference analysis and non-difference analysis of correlative keys.