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研究AES-256抵抗相关密钥-不可能差分密码分析的能力.首先给出相关密钥的差分,该差分可以扩展到8轮(甚至更多轮)子密钥差分;然后构造出一个5.5轮的相关密钥不可能差分特征.最后,给出一个对7轮AES-256的攻击和4个对8轮AES-256的攻击.
Research the ability of AES-256 to resist the relevant key-impossible differential cryptanalysis.First, the difference of the relevant key is given, which can be expanded to eight rounds (or even more rounds) of sub-key difference; then a 5.5 round Of the relevant keys can not be differential characteristics.Finally, given a seven-round AES-256 attack and four pairs of eight rounds of AES-256 attacks.