论文部分内容阅读
利用零相关线性分析方法评估Midori64算法的安全性。利用“中间相错”的方法构造了Midori64的6轮零相关线性逼近，在此基础上，对10轮Midori64进行了密钥恢复攻击。该攻击过程的数据复杂度约为2624个明密文对，计算复杂度为27935次10轮加密运算。结果表明缩减至10轮的Midori64算法对于零相关线性分析方法是不免疫的。
Evaluate the Midori64 algorithm by using zero correlation linear analysis. By using the method of “intermediate phase error”, six rounds of zero correlation linear approximation of Midori64 are constructed. On the basis of this, six rounds of key recovery attacks on Midori64 are carried out. The data complexity of the attack process is about 2624 ciphertext pairs, and the computational complexity is 27935 10-round cipher operations. The results show that the Midori64 algorithm reduced to 10 rounds is not immune to zero-correlation linear analysis methods.